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1 tim 2786 This file was created with JabRef 2.0.1.
2     Encoding: GBK
3 tim 2685
4 tim 2786 @ARTICLE{Torre2003,
5     author = {J. G. {de la Torre} and H. E. Sanchez and A. Ortega and J. G. Hernandez
6 tim 2807 and M. X. Fernandes and F. G. Diaz and M. C. L. Martinez},
7 tim 2786 title = {Calculation of the solution properties of flexible macromolecules:
8 tim 2807 methods and applications},
9 tim 2786 journal = {European Biophysics Journal with Biophysics Letters},
10     year = {2003},
11     volume = {32},
12     pages = {477-486},
13     number = {5},
14     month = {Aug},
15     abstract = {While the prediction of hydrodynamic properties of rigid particles
16 tim 2807 is nowadays feasible using simple and efficient computer programs,
17     the calculation of such properties and, in general, the dynamic
18     behavior of flexible macromolecules has not reached a similar situation.
19     Although the theories are available, usually the computational work
20     is done using solutions specific for each problem. We intend to
21     develop computer programs that would greatly facilitate the task
22     of predicting solution behavior of flexible macromolecules. In this
23     paper, we first present an overview of the two approaches that are
24     most practical: the Monte Carlo rigid-body treatment, and the Brownian
25     dynamics simulation technique. The Monte Carlo procedure is based
26     on the calculation of properties for instantaneous conformations
27     of the macromolecule that are regarded as if they were instantaneously
28     rigid. We describe how a Monte Carlo program can be interfaced to
29     the programs in the HYDRO suite for rigid particles, and provide
30     an example of such calculation, for a hypothetical particle: a protein
31     with two domains connected by a flexible linker. We also describe
32     briefly the essentials of Brownian dynamics, and propose a general
33     mechanical model that includes several kinds of intramolecular interactions,
34     such as bending, internal rotation, excluded volume effects, etc.
35     We provide an example of the application of this methodology to
36     the dynamics of a semiflexible, wormlike DNA.},
37 tim 2786 annote = {724XK Times Cited:6 Cited References Count:64},
38     issn = {0175-7571},
39     uri = {<Go to ISI>://000185513400011},
40 tim 2685 }
41    
42 tim 2786 @ARTICLE{Alakent2005,
43     author = {B. Alakent and M. C. Camurdan and P. Doruker},
44     title = {Hierarchical structure of the energy landscape of proteins revisited
45 tim 2807 by time series analysis. II. Investigation of explicit solvent effects},
46 tim 2786 journal = {Journal of Chemical Physics},
47     year = {2005},
48     volume = {123},
49     pages = {-},
50     number = {14},
51     month = {Oct 8},
52     abstract = {Time series analysis tools are employed on the principal modes obtained
53 tim 2807 from the C-alpha trajectories from two independent molecular-dynamics
54     simulations of alpha-amylase inhibitor (tendamistat). Fluctuations
55     inside an energy minimum (intraminimum motions), transitions between
56     minima (interminimum motions), and relaxations in different hierarchical
57     energy levels are investigated and compared with those encountered
58     in vacuum by using different sampling window sizes and intervals.
59     The low-frequency low-indexed mode relationship, established in
60     vacuum, is also encountered in water, which shows the reliability
61     of the important dynamics information offered by principal components
62     analysis in water. It has been shown that examining a short data
63     collection period (100 ps) may result in a high population of overdamped
64     modes, while some of the low-frequency oscillations (< 10 cm(-1))
65     can be captured in water by using a longer data collection period
66     (1200 ps). Simultaneous analysis of short and long sampling window
67     sizes gives the following picture of the effect of water on protein
68     dynamics. Water makes the protein lose its memory: future conformations
69     are less dependent on previous conformations due to the lowering
70     of energy barriers in hierarchical levels of the energy landscape.
71     In short-time dynamics (< 10 ps), damping factors extracted from
72     time series model parameters are lowered. For tendamistat, the friction
73     coefficient in the Langevin equation is found to be around 40-60
74     cm(-1) for the low-indexed modes, compatible with literature. The
75     fact that water has increased the friction and that on the other
76     hand has lubrication effect at first sight contradicts. However,
77     this comes about because water enhances the transitions between
78     minima and forces the protein to reduce its already inherent inability
79     to maintain oscillations observed in vacuum. Some of the frequencies
80     lower than 10 cm(-1) are found to be overdamped, while those higher
81     than 20 cm(-1) are slightly increased. As for the long-time dynamics
82     in water, it is found that random-walk motion is maintained for
83     approximately 200 ps (about five times of that in vacuum) in the
84     low-indexed modes, showing the lowering of energy barriers between
85     the higher-level minima.},
86 tim 2786 annote = {973OH Times Cited:1 Cited References Count:33},
87     issn = {0021-9606},
88     uri = {<Go to ISI>://000232532000064},
89 tim 2685 }
90    
91 tim 2840 @BOOK{Alexander1987,
92     title = {A Pattern Language: Towns, Buildings, Construction},
93     publisher = {Oxford University Press},
94     year = {1987},
95     author = {C. Alexander},
96     address = {New York},
97     }
98    
99     @BOOK{Allen1987,
100     title = {Computer Simulations of Liquids},
101     publisher = {Oxford University Press},
102     year = {1987},
103     author = {M.~P. Allen and D.~J. Tildesley},
104     address = {New York},
105     }
106    
107 tim 2786 @ARTICLE{Allison1991,
108     author = {S. A. Allison},
109     title = {A Brownian Dynamics Algorithm for Arbitrary Rigid Bodies - Application
110 tim 2807 to Polarized Dynamic Light-Scattering},
111 tim 2786 journal = {Macromolecules},
112     year = {1991},
113     volume = {24},
114     pages = {530-536},
115     number = {2},
116     month = {Jan 21},
117     abstract = {A Brownian dynamics algorithm is developed to simulate dynamics experiments
118 tim 2807 of rigid macromolecules. It is applied to polarized dynamic light
119     scattering from rodlike sturctures and from a model of a DNA fragment
120     (762 base pairs). A number of rod cases are examined in which the
121     translational anisotropy is increased form zero to a large value.
122     Simulated first cumulants as well as amplitudes and lifetimes of
123     the dynamic form factor are compared with predictions of analytic
124     theories and found to be in very good agreement with them. For DNA
125     fragments 762 base pairs in length or longer, translational anisotropy
126     does not contribute significantly to dynamic light scattering. In
127     a comparison of rigid and flexible simulations on semistiff models
128     of this fragment, it is shown directly that flexing contributes
129     to the faster decay processes probed by light scattering and that
130     the flexible model studies are in good agreement with experiment.},
131 tim 2786 annote = {Eu814 Times Cited:8 Cited References Count:32},
132     issn = {0024-9297},
133     uri = {<Go to ISI>://A1991EU81400029},
134 tim 2685 }
135    
136 tim 2789 @ARTICLE{Andersen1983,
137     author = {H. C. Andersen},
138     title = {Rattle - a Velocity Version of the Shake Algorithm for Molecular-Dynamics
139 tim 2807 Calculations},
140 tim 2789 journal = {Journal of Computational Physics},
141     year = {1983},
142     volume = {52},
143     pages = {24-34},
144     number = {1},
145     annote = {Rq238 Times Cited:559 Cited References Count:14},
146     issn = {0021-9991},
147     uri = {<Go to ISI>://A1983RQ23800002},
148     }
149    
150 tim 2786 @ARTICLE{Auerbach2005,
151     author = {A. Auerbach},
152     title = {Gating of acetylcholine receptor channels: Brownian motion across
153 tim 2807 a broad transition state},
154 tim 2786 journal = {Proceedings of the National Academy of Sciences of the United States
155 tim 2807 of America},
156 tim 2786 year = {2005},
157     volume = {102},
158     pages = {1408-1412},
159     number = {5},
160     month = {Feb 1},
161     abstract = {Acetylcholine receptor channels (AChRs) are proteins that switch between
162 tim 2807 stable #closed# and #open# conformations. In patch clamp recordings,
163     diliganded AChR gating appears to be a simple, two-state reaction.
164     However, mutagenesis studies indicate that during gating dozens
165     of residues across the protein move asynchronously and are organized
166     into rigid body gating domains (#blocks#). Moreover, there is an
167     upper limit to the apparent channel opening rate constant. These
168     observations suggest that the gating reaction has a broad, corrugated
169     transition state region, with the maximum opening rate reflecting,
170     in part, the mean first-passage time across this ensemble. Simulations
171     reveal that a flat, isotropic energy profile for the transition
172     state can account for many of the essential features of AChR gating.
173     With this mechanism, concerted, local structural transitions that
174     occur on the broad transition state ensemble give rise to fractional
175     measures of reaction progress (Phi values) determined by rate-equilibrium
176     free energy relationship analysis. The results suggest that the
177     coarse-grained AChR gating conformational change propagates through
178     the protein with dynamics that are governed by the Brownian motion
179     of individual gating blocks.},
180 tim 2786 annote = {895QF Times Cited:9 Cited References Count:33},
181     issn = {0027-8424},
182     uri = {<Go to ISI>://000226877300030},
183 tim 2685 }
184    
185 tim 2786 @ARTICLE{Baber1995,
186     author = {J. Baber and J. F. Ellena and D. S. Cafiso},
187     title = {Distribution of General-Anesthetics in Phospholipid-Bilayers Determined
188 tim 2807 Using H-2 Nmr and H-1-H-1 Noe Spectroscopy},
189 tim 2786 journal = {Biochemistry},
190     year = {1995},
191     volume = {34},
192     pages = {6533-6539},
193     number = {19},
194     month = {May 16},
195     abstract = {The effect of the general anesthetics halothane, enflurane, and isoflurane
196 tim 2807 on hydrocarbon chain packing in palmitoyl(d(31))oleoylphosphatidylcholine
197     membranes in the liquid crystalline phase was investigated using
198     H-2 NMR. Upon the addition of the anesthetics, the first five methylene
199     units near the interface generally show a very small increase in
200     segmental order, while segments deeper within the bilayer show a
201     small decrease in segmental order. From the H-2 NMR results, the
202     chain length for the perdeuterated palmitoyl chain in the absence
203     of anesthetic was found to be 12.35 Angstrom. Upon the addition
204     of halothane enflurane, or isoflurane, the acyl chain undergoes
205     slight contractions of 0.11, 0.20, or 0.16 Angstrom, respectively,
206     at 50 mol % anesthetic. A simple model was used to estimate the
207     relative amounts of anesthetic located near the interface and deeper
208     in the bilayer hydrocarbon region, and only a slight preference
209     for an interfacial location was observed. Intermolecular H-1-H-1
210     nuclear Overhauser effects (NOEs) were measured between phospholipid
211     and halothane protons. These NOEs are consistent with the intramembrane
212     location of the anesthetics suggested by the H-2 NMR data. In addition,
213     the NOE data indicate that anesthetics prefer the interfacial and
214     hydrocarbon regions of the membrane and are not found in high concentrations
215     in the phospholipid headgroup.},
216 tim 2786 annote = {Qz716 Times Cited:38 Cited References Count:37},
217     issn = {0006-2960},
218     uri = {<Go to ISI>://A1995QZ71600035},
219 tim 2685 }
220    
221 tim 2786 @ARTICLE{Banerjee2004,
222     author = {D. Banerjee and B. C. Bag and S. K. Banik and D. S. Ray},
223     title = {Solution of quantum Langevin equation: Approximations, theoretical
224 tim 2807 and numerical aspects},
225 tim 2786 journal = {Journal of Chemical Physics},
226     year = {2004},
227     volume = {120},
228     pages = {8960-8972},
229     number = {19},
230     month = {May 15},
231     abstract = {Based on a coherent state representation of noise operator and an
232 tim 2807 ensemble averaging procedure using Wigner canonical thermal distribution
233     for harmonic oscillators, a generalized quantum Langevin equation
234     has been recently developed [Phys. Rev. E 65, 021109 (2002); 66,
235     051106 (2002)] to derive the equations of motion for probability
236     distribution functions in c-number phase-space. We extend the treatment
237     to explore several systematic approximation schemes for the solutions
238     of the Langevin equation for nonlinear potentials for a wide range
239     of noise correlation, strength and temperature down to the vacuum
240     limit. The method is exemplified by an analytic application to harmonic
241     oscillator for arbitrary memory kernel and with the help of a numerical
242     calculation of barrier crossing, in a cubic potential to demonstrate
243     the quantum Kramers' turnover and the quantum Arrhenius plot. (C)
244     2004 American Institute of Physics.},
245 tim 2786 annote = {816YY Times Cited:8 Cited References Count:35},
246     issn = {0021-9606},
247     uri = {<Go to ISI>://000221146400009},
248 tim 2685 }
249    
250 tim 2840 @ARTICLE{Barojas1973,
251     author = {J. Barojas and D. Levesque},
252     title = {Simulation of Diatomic Homonuclear Liquids},
253     journal = {Phys. Rev. A},
254     year = {1973},
255     volume = {7},
256     pages = {1092-1105},
257     }
258    
259 tim 2786 @ARTICLE{Barth1998,
260     author = {E. Barth and T. Schlick},
261     title = {Overcoming stability limitations in biomolecular dynamics. I. Combining
262 tim 2807 force splitting via extrapolation with Langevin dynamics in LN},
263 tim 2786 journal = {Journal of Chemical Physics},
264     year = {1998},
265     volume = {109},
266     pages = {1617-1632},
267     number = {5},
268     month = {Aug 1},
269     abstract = {We present an efficient new method termed LN for propagating biomolecular
270 tim 2807 dynamics according to the Langevin equation that arose fortuitously
271     upon analysis of the range of harmonic validity of our normal-mode
272     scheme LIN. LN combines force linearization with force splitting
273     techniques and disposes of LIN'S computationally intensive minimization
274     (anharmonic correction) component. Unlike the competitive multiple-timestepping
275     (MTS) schemes today-formulated to be symplectic and time-reversible-LN
276     merges the slow and fast forces via extrapolation rather than impulses;
277     the Langevin heat bath prevents systematic energy drifts. This combination
278     succeeds in achieving more significant speedups than these MTS methods
279     which are Limited by resonance artifacts to an outer timestep less
280     than some integer multiple of half the period of the fastest motion
281     (around 4-5 fs for biomolecules). We show that LN achieves very
282     good agreement with small-timestep solutions of the Langevin equation
283     in terms of thermodynamics (energy means and variances), geometry,
284     and dynamics (spectral densities) for two proteins in vacuum and
285     a large water system. Significantly, the frequency of updating the
286     slow forces extends to 48 fs or more, resulting in speedup factors
287     exceeding 10. The implementation of LN in any program that employs
288     force-splitting computations is straightforward, with only partial
289     second-derivative information required, as well as sparse Hessian/vector
290     multiplication routines. The linearization part of LN could even
291     be replaced by direct evaluation of the fast components. The application
292     of LN to biomolecular dynamics is well suited for configurational
293     sampling, thermodynamic, and structural questions. (C) 1998 American
294     Institute of Physics.},
295 tim 2786 annote = {105HH Times Cited:29 Cited References Count:49},
296     issn = {0021-9606},
297     uri = {<Go to ISI>://000075066300006},
298 tim 2685 }
299    
300 tim 2786 @ARTICLE{Batcho2001,
301     author = {P. F. Batcho and T. Schlick},
302     title = {Special stability advantages of position-Verlet over velocity-Verlet
303 tim 2807 in multiple-time step integration},
304 tim 2786 journal = {Journal of Chemical Physics},
305     year = {2001},
306     volume = {115},
307     pages = {4019-4029},
308     number = {9},
309     month = {Sep 1},
310     abstract = {We present an analysis for a simple two-component harmonic oscillator
311 tim 2807 that compares the use of position-Verlet to velocity-Verlet for
312     multiple-time step integration. The numerical stability analysis
313     based on the impulse-Verlet splitting shows that position-Verlet
314     has enhanced stability, in terms of the largest allowable time step,
315     for cases where an ample separation of time scales exists. Numerical
316     investigations confirm the advantages of the position-Verlet scheme
317     when used for the fastest time scales of the system. Applications
318     to a biomolecule. a solvated protein, for both Newtonian and Langevin
319     dynamics echo these trends over large outer time-step regimes. (C)
320     2001 American Institute of Physics.},
321 tim 2786 annote = {469KV Times Cited:6 Cited References Count:30},
322     issn = {0021-9606},
323     uri = {<Go to ISI>://000170813800005},
324 tim 2685 }
325    
326 tim 2786 @ARTICLE{Bates2005,
327     author = {M. A. Bates and G. R. Luckhurst},
328     title = {Biaxial nematic phases and V-shaped molecules: A Monte Carlo simulation
329 tim 2807 study},
330 tim 2786 journal = {Physical Review E},
331     year = {2005},
332     volume = {72},
333     pages = {-},
334     number = {5},
335     month = {Nov},
336     abstract = {Inspired by recent claims that compounds composed of V-shaped molecules
337 tim 2807 can exhibit the elusive biaxial nematic phase, we have developed
338     a generic simulation model for such systems. This contains the features
339     of the molecule that are essential to its liquid crystal behavior,
340     namely the anisotropies of the two arms and the angle between them.
341     The behavior of the model has been investigated using Monte Carlo
342     simulations for a wide range of these structural parameters. This
343     allows us to establish the relationship between the V-shaped molecule
344     and its ability to form a biaxial nematic phase. Of particular importance
345     are the criteria of geometry and the relative anisotropy necessary
346     for the system to exhibit a Landau point, at which the biaxial nematic
347     is formed directly from the isotropic phase. The simulations have
348     also been used to determine the orientational order parameters for
349     a selection of molecular axes. These are especially important because
350     they reveal the phase symmetry and are connected to the experimental
351     determination of this. The simulation results show that, whereas
352     some positions are extremely sensitive to the phase biaxiality,
353     others are totally blind to this.},
354 tim 2786 annote = {Part 1 988LQ Times Cited:0 Cited References Count:38},
355     issn = {1539-3755},
356     uri = {<Go to ISI>://000233603100030},
357 tim 2685 }
358    
359 tim 2786 @ARTICLE{Beard2003,
360     author = {D. A. Beard and T. Schlick},
361     title = {Unbiased rotational moves for rigid-body dynamics},
362     journal = {Biophysical Journal},
363     year = {2003},
364     volume = {85},
365     pages = {2973-2976},
366     number = {5},
367     month = {Nov 1},
368     abstract = {We introduce an unbiased protocol for performing rotational moves
369 tim 2807 in rigid-body dynamics simulations. This approach - based on the
370     analytic solution for the rotational equations of motion for an
371     orthogonal coordinate system at constant angular velocity - removes
372     deficiencies that have been largely ignored in Brownian dynamics
373     simulations, namely errors for finite rotations that result from
374     applying the noncommuting rotational matrices in an arbitrary order.
375     Our algorithm should thus replace standard approaches to rotate
376     local coordinate frames in Langevin and Brownian dynamics simulations.},
377 tim 2786 annote = {736UA Times Cited:0 Cited References Count:11},
378     issn = {0006-3495},
379     uri = {<Go to ISI>://000186190500018},
380 tim 2685 }
381    
382 tim 2786 @ARTICLE{Beloborodov1998,
383     author = {I. S. Beloborodov and V. Y. Orekhov and A. S. Arseniev},
384     title = {Effect of coupling between rotational and translational Brownian
385 tim 2807 motions on NMR spin relaxation: Consideration using green function
386     of rigid body diffusion},
387 tim 2786 journal = {Journal of Magnetic Resonance},
388     year = {1998},
389     volume = {132},
390     pages = {328-329},
391     number = {2},
392     month = {Jun},
393     abstract = {Using the Green function of arbitrary rigid Brownian diffusion (Goldstein,
394 tim 2807 Biopolymers 33, 409-436, 1993), it was analytically shown that coupling
395     between translation and rotation diffusion degrees of freedom does
396     not affect the correlation functions relevant to the NMR intramolecular
397     relaxation. It follows that spectral densities usually used for
398     the anisotropic rotation diffusion (Woessner, J. Chem. Phys. 37,
399     647-654, 1962) can be regarded as exact in respect to the rotation-translation
400     coupling for the spin system connected with a rigid body. (C) 1998
401     Academic Press.},
402 tim 2786 annote = {Zu605 Times Cited:2 Cited References Count:6},
403     issn = {1090-7807},
404     uri = {<Go to ISI>://000074214800017},
405 tim 2685 }
406    
407 tim 2786 @ARTICLE{Berardi1996,
408     author = {R. Berardi and S. Orlandi and C. Zannoni},
409     title = {Antiphase structures in polar smectic liquid crystals and their molecular
410 tim 2807 origin},
411 tim 2786 journal = {Chemical Physics Letters},
412     year = {1996},
413     volume = {261},
414     pages = {357-362},
415     number = {3},
416     month = {Oct 18},
417     abstract = {We demonstrate that the overall molecular dipole organization in a
418 tim 2807 smectic liquid crystal formed of polar molecules can be strongly
419     influenced by the position of the dipole in the molecule. We study
420     by large scale Monte Carlo simulations systems of attractive-repulsive
421     ''Gay-Berne'' elongated ellipsoids with an axial dipole at the center
422     or near the end of the molecule and we show that monolayer smectic
423     liquid crystals and modulated antiferroelectric bilayer stripe domains
424     similar to the experimentally observed ''antiphase'' structures
425     are obtained in the two cases.},
426 tim 2786 annote = {Vn637 Times Cited:49 Cited References Count:26},
427     issn = {0009-2614},
428     uri = {<Go to ISI>://A1996VN63700023},
429 tim 2685 }
430    
431 tim 2786 @ARTICLE{Berkov2005,
432     author = {D. V. Berkov and N. L. Gorn},
433     title = {Magnetization precession due to a spin-polarized current in a thin
434 tim 2807 nanoelement: Numerical simulation study},
435 tim 2786 journal = {Physical Review B},
436     year = {2005},
437     volume = {72},
438     pages = {-},
439     number = {9},
440     month = {Sep},
441     abstract = {In this paper a detailed numerical study (in frames of the Slonczewski
442 tim 2807 formalism) of magnetization oscillations driven by a spin-polarized
443     current through a thin elliptical nanoelement is presented. We show
444     that a sophisticated micromagnetic model, where a polycrystalline
445     structure of a nanoelement is taken into account, can explain qualitatively
446     all most important features of the magnetization oscillation spectra
447     recently observed experimentally [S. I. Kiselev , Nature 425, 380
448     (2003)], namely, existence of several equidistant spectral bands,
449     sharp onset and abrupt disappearance of magnetization oscillations
450     with increasing current, absence of the out-of-plane regime predicted
451     by a macrospin model, and the relation between frequencies of so-called
452     small-angle and quasichaotic oscillations. However, a quantitative
453     agreement with experimental results (especially concerning the frequency
454     of quasichaotic oscillations) could not be achieved in the region
455     of reasonable parameter values, indicating that further model refinement
456     is necessary for a complete understanding of the spin-driven magnetization
457     precession even in this relatively simple experimental situation.},
458 tim 2786 annote = {969IT Times Cited:2 Cited References Count:55},
459     issn = {1098-0121},
460     uri = {<Go to ISI>://000232228500058},
461 tim 2685 }
462    
463 tim 2840 @ARTICLE{Berkov2005a,
464     author = {D. V. Berkov and N. L. Gorn},
465     title = {Stochastic dynamic simulations of fast remagnetization processes:
466     recent advances and applications},
467     journal = {Journal of Magnetism and Magnetic Materials},
468     year = {2005},
469     volume = {290},
470     pages = {442-448},
471     month = {Apr},
472     abstract = {Numerical simulations of fast remagnetization processes using stochastic
473     dynamics are widely used to study various magnetic systems. In this
474     paper, we first address several crucial methodological problems
475     of such simulations: (i) the influence of finite-element discretization
476     on simulated dynamics, (ii) choice between Ito and Stratonovich
477     stochastic calculi by the solution of micromagnetic stochastic equations
478     of motion and (iii) non-trivial correlation properties of the random
479     (thermal) field. Next, we discuss several examples to demonstrate
480     the great potential of the Langevin dynamics for studying fast remagnetization
481     processes in technically relevant applications: we present numerical
482     analysis of equilibrium magnon spectra in patterned structures,
483     study thermal noise effects on the magnetization dynamics of nanoelements
484     in pulsed fields and show some results for a remagnetization dynamics
485     induced by a spin-polarized current. (c) 2004 Elsevier B.V. All
486     rights reserved.},
487     annote = {Part 1 Sp. Iss. SI 922KU Times Cited:2 Cited References Count:25},
488     issn = {0304-8853},
489     uri = {<Go to ISI>://000228837600109},
490     }
491    
492 tim 2786 @ARTICLE{Berkov2002,
493     author = {D. V. Berkov and N. L. Gorn and P. Gornert},
494     title = {Magnetization dynamics in nanoparticle systems: Numerical simulation
495 tim 2807 using Langevin dynamics},
496 tim 2786 journal = {Physica Status Solidi a-Applied Research},
497     year = {2002},
498     volume = {189},
499     pages = {409-421},
500     number = {2},
501     month = {Feb 16},
502     abstract = {We report on recent progress achieved by the development of numerical
503 tim 2807 methods based on the stochastic (Langevin) dynamics applied to systems
504     of interacting magnetic nanoparticles. The method enables direct
505     simulations of the trajectories of magnetic moments taking into
506     account (i) all relevant interactions, (ii) precession dynamics,
507     and (iii) temperature fluctuations included via the random (thermal)
508     field. We present several novel results obtained using new methods
509     developed for the solution of the Langevin equations. In particular,
510     we have investigated magnetic nanodots and disordered granular systems
511     of single-domain magnetic particles. For the first case we have
512     calculated the spectrum and the spatial distribution of spin excitations.
513     For the second system the complex ac susceptibility chi(omega, T)
514     for various particle concentrations and particle anisotropies were
515     computed and compared with numerous experimental results.},
516 tim 2786 annote = {526TF Times Cited:4 Cited References Count:37},
517     issn = {0031-8965},
518     uri = {<Go to ISI>://000174145200026},
519 tim 2685 }
520    
521 tim 2786 @ARTICLE{Bernal1980,
522     author = {J.M. Bernal and J. G. {de la Torre}},
523     title = {Transport Properties and Hydrodynamic Centers of Rigid Macromolecules
524 tim 2807 with Arbitrary Shape},
525 tim 2786 journal = {Biopolymers},
526     year = {1980},
527     volume = {19},
528     pages = {751-766},
529 tim 2685 }
530    
531 tim 2840 @ARTICLE{Brenner1967,
532     author = {H. Brenner },
533     title = {Coupling between the Translational and Rotational Brownian Motions
534     of Rigid Particles of Arbitrary shape},
535     journal = {J. Collid. Int. Sci.},
536     year = {1967},
537     volume = {23},
538     pages = {407-436},
539     }
540    
541 tim 2841 @ARTICLE{Brooks1983,
542     author = {B. R. Brooks and R. E. Bruccoleri and B. D. Olafson and D. J. States
543     and S. Swaminathan and M. Karplus},
544     title = {Charmm - a Program for Macromolecular Energy, Minimization, and Dynamics
545     Calculations},
546     journal = {Journal of Computational Chemistry},
547     year = {1983},
548     volume = {4},
549     pages = {187-217},
550     number = {2},
551     annote = {Qp423 Times Cited:6414 Cited References Count:96},
552     issn = {0192-8651},
553     uri = {<Go to ISI>://A1983QP42300010},
554     }
555    
556 tim 2786 @ARTICLE{Brunger1984,
557     author = {A. Brunger and C. L. Brooks and M. Karplus},
558     title = {Stochastic Boundary-Conditions for Molecular-Dynamics Simulations
559 tim 2807 of St2 Water},
560 tim 2786 journal = {Chemical Physics Letters},
561     year = {1984},
562     volume = {105},
563     pages = {495-500},
564     number = {5},
565     annote = {Sm173 Times Cited:143 Cited References Count:22},
566     issn = {0009-2614},
567     uri = {<Go to ISI>://A1984SM17300007},
568 tim 2685 }
569    
570 tim 2789 @ARTICLE{Budd1999,
571     author = {C. J. Budd and G. J. Collins and W. Z. Huang and R. D. Russell},
572     title = {Self-similar numerical solutions of the porous-medium equation using
573 tim 2807 moving mesh methods},
574 tim 2789 journal = {Philosophical Transactions of the Royal Society of London Series
575 tim 2807 a-Mathematical Physical and Engineering Sciences},
576 tim 2789 year = {1999},
577     volume = {357},
578     pages = {1047-1077},
579     number = {1754},
580     month = {Apr 15},
581     abstract = {This paper examines a synthesis of adaptive mesh methods with the
582 tim 2807 use of symmetry to study a partial differential equation. In particular,
583     it considers methods which admit discrete self-similar solutions,
584     examining the convergence of these to the true self-similar solution
585     as well as their stability. Special attention is given to the nonlinear
586     diffusion equation describing flow in a porous medium.},
587 tim 2789 annote = {199EE Times Cited:4 Cited References Count:14},
588     issn = {1364-503X},
589     uri = {<Go to ISI>://000080466800005},
590     }
591    
592 tim 2786 @ARTICLE{Camp1999,
593     author = {P. J. Camp and M. P. Allen and A. J. Masters},
594     title = {Theory and computer simulation of bent-core molecules},
595     journal = {Journal of Chemical Physics},
596     year = {1999},
597     volume = {111},
598     pages = {9871-9881},
599     number = {21},
600     month = {Dec 1},
601     abstract = {Fluids of hard bent-core molecules have been studied using theory
602 tim 2807 and computer simulation. The molecules are composed of two hard
603     spherocylinders, with length-to-breadth ratio L/D, joined by their
604     ends at an angle 180 degrees - gamma. For L/D = 2 and gamma = 0,10,20
605     degrees, the simulations show isotropic, nematic, smectic, and solid
606     phases. For L/D = 2 and gamma = 30 degrees, only isotropic, nematic,
607     and solid phases are in evidence, which suggests that there is a
608     nematic-smectic-solid triple point at an angle in the range 20 degrees
609     < gamma < 30 degrees. In all of the orientationally ordered fluid
610     phases the order is purely uniaxial. For gamma = 10 degrees and
611     20 degrees, at the studied densities, the solid is also uniaxially
612     ordered, whilst for gamma = 30 degrees the solid layers are biaxially
613     ordered. For L/D = 2 and gamma = 60 degrees and 90 degrees we find
614     no spontaneous orientational ordering. This is shown to be due to
615     the interlocking of dimer pairs which precludes alignment. We find
616     similar results for L/D = 9.5 and gamma = 72 degrees, where an isotropic-biaxial
617     nematic transition is predicted by Onsager theory. Simulations in
618     the biaxial nematic phase show it to be at least mechanically stable
619     with respect to the isotropic phase, however. We have compared the
620     quasi-exact simulation results in the isotropic phase with the predicted
621     equations of state from three theories: the virial expansion containing
622     the second and third virial coefficients; the Parsons-Lee equation
623     of state; an application of Wertheim's theory of associating fluids
624     in the limit of infinite attractive association energy. For all
625     of the molecule elongations and geometries we have simulated, the
626     Wertheim theory proved to be the most accurate. Interestingly, the
627     isotropic equation of state is virtually independent of the dimer
628     bond angle-a feature that is also reflected in the lack of variation
629     with angle of the calculated second and third virial coefficients.
630     (C) 1999 American Institute of Physics. [S0021-9606(99)50445-5].},
631 tim 2786 annote = {255TC Times Cited:24 Cited References Count:38},
632     issn = {0021-9606},
633     uri = {<Go to ISI>://000083685400056},
634 tim 2685 }
635    
636 tim 2786 @ARTICLE{Care2005,
637     author = {C. M. Care and D. J. Cleaver},
638     title = {Computer simulation of liquid crystals},
639     journal = {Reports on Progress in Physics},
640     year = {2005},
641     volume = {68},
642     pages = {2665-2700},
643     number = {11},
644     month = {Nov},
645     abstract = {A review is presented of molecular and mesoscopic computer simulations
646 tim 2807 of liquid crystalline systems. Molecular simulation approaches applied
647     to such systems are described, and the key findings for bulk phase
648     behaviour are reported. Following this, recently developed lattice
649     Boltzmann approaches to the mesoscale modelling of nemato-dynanics
650     are reviewed. This paper concludes with a discussion of possible
651     areas for future development in this field.},
652 tim 2786 annote = {989TU Times Cited:2 Cited References Count:258},
653     issn = {0034-4885},
654     uri = {<Go to ISI>://000233697600004},
655 tim 2685 }
656    
657 tim 2786 @ARTICLE{Carrasco1999,
658     author = {B. Carrasco and J. G. {de la Torre}},
659     title = {Hydrodynamic properties of rigid particles: Comparison of different
660 tim 2807 modeling and computational procedures},
661 tim 2786 journal = {Biophysical Journal},
662     year = {1999},
663     volume = {76},
664     pages = {3044-3057},
665     number = {6},
666     month = {Jun},
667     abstract = {The hydrodynamic properties of rigid particles are calculated from
668 tim 2807 models composed of spherical elements (beads) using theories developed
669     by Kirkwood, Bloomfield, and their coworkers. Bead models have usually
670     been built in such a way that the beads fill the volume occupied
671     by the particles. Sometimes the beads are few and of varying sizes
672     (bead models in the strict sense), and other times there are many
673     small beads (filling models). Because hydrodynamic friction takes
674     place at the molecular surface, another possibility is to use shell
675     models, as originally proposed by Bloomfield. In this work, we have
676     developed procedures to build models of the various kinds, and we
677     describe the theory and methods for calculating their hydrodynamic
678     properties, including approximate methods that may be needed to
679     treat models with a very large number of elements. By combining
680     the various possibilities of model building and hydrodynamic calculation,
681     several strategies can be designed. We have made a quantitative
682     comparison of the performance of the various strategies by applying
683     them to some test cases, for which the properties are known a priori.
684     We provide guidelines and computational tools for bead modeling.},
685 tim 2786 annote = {200TT Times Cited:46 Cited References Count:57},
686     issn = {0006-3495},
687     uri = {<Go to ISI>://000080556700016},
688 tim 2685 }
689    
690 tim 2786 @ARTICLE{Chandra1999,
691     author = {A. Chandra and T. Ichiye},
692     title = {Dynamical properties of the soft sticky dipole model of water: Molecular
693 tim 2807 dynamics simulations},
694 tim 2786 journal = {Journal of Chemical Physics},
695     year = {1999},
696     volume = {111},
697     pages = {2701-2709},
698     number = {6},
699     month = {Aug 8},
700     abstract = {Dynamical properties of the soft sticky dipole (SSD) model of water
701 tim 2807 are calculated by means of molecular dynamics simulations. Since
702     this is not a simple point model, the forces and torques arising
703     from the SSD potential are derived here. Simulations are carried
704     out in the microcanonical ensemble employing the Ewald method for
705     the electrostatic interactions. Various time correlation functions
706     and dynamical quantities associated with the translational and rotational
707     motion of water molecules are evaluated and compared with those
708     of two other commonly used models of liquid water, namely the transferable
709     intermolecular potential-three points (TIP3P) and simple point charge/extended
710     (SPC/E) models, and also with experiments. The dynamical properties
711     of the SSD water model are found to be in good agreement with the
712     experimental results and appear to be better than the TIP3P and
713     SPC/E models in most cases, as has been previously shown for its
714     thermodynamic, structural, and dielectric properties. Also, molecular
715     dynamics simulations of the SSD model are found to run much faster
716     than TIP3P, SPC/E, and other multisite models. (C) 1999 American
717     Institute of Physics. [S0021-9606(99)51430-X].},
718 tim 2786 annote = {221EN Times Cited:14 Cited References Count:66},
719     issn = {0021-9606},
720     uri = {<Go to ISI>://000081711200038},
721 tim 2685 }
722    
723 tim 2789 @ARTICLE{Channell1990,
724     author = {P. J. Channell and C. Scovel},
725     title = {Symplectic Integration of Hamiltonian-Systems},
726     journal = {Nonlinearity},
727     year = {1990},
728     volume = {3},
729     pages = {231-259},
730     number = {2},
731     month = {may},
732     annote = {Dk631 Times Cited:152 Cited References Count:34},
733     issn = {0951-7715},
734     uri = {<Go to ISI>://A1990DK63100001},
735     }
736    
737     @ARTICLE{Chen2003,
738     author = {B. Chen and F. Solis},
739     title = {Explicit mixed finite order Runge-Kutta methods},
740     journal = {Applied Numerical Mathematics},
741     year = {2003},
742     volume = {44},
743     pages = {21-30},
744     number = {1-2},
745     month = {Jan},
746     abstract = {We investigate the asymptotic behavior of systems of nonlinear differential
747 tim 2807 equations and introduce a family of mixed methods from combinations
748     of explicit Runge-Kutta methods. These methods have better stability
749     behavior than traditional Runge-Kutta methods and generally extend
750     the range of validity of the calculated solutions. These methods
751     also give a way of determining if the numerical solutions are real
752     or spurious. Emphasis is put on examples coming from mathematical
753     models in ecology. (C) 2002 IMACS. Published by Elsevier Science
754     B.V. All rights reserved.},
755 tim 2789 annote = {633ZD Times Cited:0 Cited References Count:9},
756     issn = {0168-9274},
757     uri = {<Go to ISI>://000180314200002},
758     }
759    
760 tim 2786 @ARTICLE{Cheung2004,
761     author = {D. L. Cheung and S. J. Clark and M. R. Wilson},
762     title = {Calculation of flexoelectric coefficients for a nematic liquid crystal
763 tim 2807 by atomistic simulation},
764 tim 2786 journal = {Journal of Chemical Physics},
765     year = {2004},
766     volume = {121},
767     pages = {9131-9139},
768     number = {18},
769     month = {Nov 8},
770     abstract = {Equilibrium molecular dynamics calculations have been performed for
771 tim 2807 the liquid crystal molecule n-4-(trans-4-n-pentylcyclohexyl)benzonitrile
772     (PCH5) using a fully atomistic model. Simulation data have been
773     obtained for a series of temperatures in the nematic phase. The
774     simulation data have been used to calculate the flexoelectric coefficients
775     e(s) and e(b) using the linear response formalism of Osipov and
776     Nemtsov [M. A. Osipov and V. B. Nemtsov, Sov. Phys. Crstallogr.
777     31, 125 (1986)]. The temperature and order parameter dependence
778     of e(s) and e(b) are examined, as are separate contributions from
779     different intermolecular interactions. Values of e(s) and e(b) calculated
780     from simulation are consistent with those found from experiment.
781     (C) 2004 American Institute of Physics.},
782 tim 2786 annote = {866UM Times Cited:4 Cited References Count:61},
783     issn = {0021-9606},
784     uri = {<Go to ISI>://000224798900053},
785 tim 2685 }
786    
787 tim 2786 @ARTICLE{Cheung2002,
788     author = {D. L. Cheung and S. J. Clark and M. R. Wilson},
789     title = {Calculation of the rotational viscosity of a nematic liquid crystal},
790     journal = {Chemical Physics Letters},
791     year = {2002},
792     volume = {356},
793     pages = {140-146},
794     number = {1-2},
795     month = {Apr 15},
796     abstract = {Equilibrium molecular dynamics calculations have been performed for
797 tim 2807 the liquid crystal molecule n-4-(trans-4-npentylcyclohexyl)benzonitrile
798     (PCH5) using a fully atomistic model. Simulation data has been obtained
799     for a series of temperatures in the nematic phase. The rotational
800     viscosity co-efficient gamma(1), has been calculated using the angular
801     velocity correlation function of the nematic director, n, the mean
802     squared diffusion of n and statistical mechanical methods based
803     on the rotational diffusion co-efficient. We find good agreement
804     between the first two methods and experimental values. (C) 2002
805     Published by Elsevier Science B.V.},
806 tim 2786 annote = {547KF Times Cited:8 Cited References Count:31},
807     issn = {0009-2614},
808     uri = {<Go to ISI>://000175331000020},
809 tim 2685 }
810    
811 tim 2786 @ARTICLE{Chin2004,
812     author = {S. A. Chin},
813     title = {Dynamical multiple-time stepping methods for overcoming resonance
814 tim 2807 instabilities},
815 tim 2786 journal = {Journal of Chemical Physics},
816     year = {2004},
817     volume = {120},
818     pages = {8-13},
819     number = {1},
820     month = {Jan 1},
821     abstract = {Current molecular dynamics simulations of biomolecules using multiple
822 tim 2807 time steps to update the slowly changing force are hampered by instabilities
823     beginning at time steps near the half period of the fastest vibrating
824     mode. These #resonance# instabilities have became a critical barrier
825     preventing the long time simulation of biomolecular dynamics. Attempts
826     to tame these instabilities by altering the slowly changing force
827     and efforts to damp them out by Langevin dynamics do not address
828     the fundamental cause of these instabilities. In this work, we trace
829     the instability to the nonanalytic character of the underlying spectrum
830     and show that a correct splitting of the Hamiltonian, which renders
831     the spectrum analytic, restores stability. The resulting Hamiltonian
832     dictates that in addition to updating the momentum due to the slowly
833     changing force, one must also update the position with a modified
834     mass. Thus multiple-time stepping must be done dynamically. (C)
835     2004 American Institute of Physics.},
836 tim 2786 annote = {757TK Times Cited:1 Cited References Count:22},
837     issn = {0021-9606},
838     uri = {<Go to ISI>://000187577400003},
839 tim 2685 }
840    
841 tim 2786 @ARTICLE{Cook2000,
842     author = {M. J. Cook and M. R. Wilson},
843     title = {Simulation studies of dipole correlation in the isotropic liquid
844 tim 2807 phase},
845 tim 2786 journal = {Liquid Crystals},
846     year = {2000},
847     volume = {27},
848     pages = {1573-1583},
849     number = {12},
850     month = {Dec},
851     abstract = {The Kirkwood correlation factor g(1) determines the preference for
852 tim 2807 local parallel or antiparallel dipole association in the isotropic
853     phase. Calamitic mesogens with longitudinal dipole moments and Kirkwood
854     factors greater than 1 have an enhanced effective dipole moment
855     along the molecular long axis. This leads to higher values of Delta
856     epsilon in the nematic phase. This paper describes state-of-the-art
857     molecular dynamics simulations of two calamitic mesogens 4-(trans-4-n-pentylcyclohexyl)benzonitrile
858     (PCH5) and 4-(trans-4-n-pentylcyclohexyl) chlorobenzene (PCH5-Cl)
859     in the isotropic liquid phase using an all-atom force field and
860     taking long range electrostatics into account using an Ewald summation.
861     Using this methodology, PCH5 is seen to prefer antiparallel dipole
862     alignment with a negative g(1) and PCH5-Cl is seen to prefer parallel
863     dipole alignment with a positive g(1); this is in accordance with
864     experimental dielectric measurements. Analysis of the molecular
865     dynamics trajectories allows an assessment of why these molecules
866     behave differently.},
867 tim 2786 annote = {376BF Times Cited:10 Cited References Count:16},
868     issn = {0267-8292},
869     uri = {<Go to ISI>://000165437800002},
870 tim 2685 }
871    
872 tim 2786 @ARTICLE{Cui2003,
873     author = {B. X. Cui and M. Y. Shen and K. F. Freed},
874     title = {Folding and misfolding of the papillomavirus E6 interacting peptide
875 tim 2807 E6ap},
876 tim 2786 journal = {Proceedings of the National Academy of Sciences of the United States
877 tim 2807 of America},
878 tim 2786 year = {2003},
879     volume = {100},
880     pages = {7087-7092},
881     number = {12},
882     month = {Jun 10},
883     abstract = {All-atom Langevin dynamics simulations have been performed to study
884 tim 2807 the folding pathways of the 18-residue binding domain fragment E6ap
885     of the human papillomavirus E6 interacting peptide. Six independent
886     folding trajectories, with a total duration of nearly 2 mus, all
887     lead to the same native state in which the E6ap adopts a fluctuating
888     a-helix structure in the central portion (Ser-4-Leu-13) but with
889     very flexible N and C termini. Simulations starting from different
890     core configurations exhibit the E6ap folding dynamics as either
891     a two- or three-state folder with an intermediate misfolded state.
892     The essential leucine hydrophobic core (Leu-9, Leu-12, and Leu-13)
893     is well conserved in the native-state structure but absent in the
894     intermediate structure, suggesting that the leucine core is not
895     only essential for the binding activity of E6ap but also important
896     for the stability of the native structure. The free energy landscape
897     reveals a significant barrier between the basins separating the
898     native and misfolded states. We also discuss the various underlying
899     forces that drive the peptide into its native state.},
900 tim 2786 annote = {689LC Times Cited:3 Cited References Count:48},
901     issn = {0027-8424},
902     uri = {<Go to ISI>://000183493500037},
903 tim 2685 }
904    
905 tim 2786 @ARTICLE{Denisov2003,
906     author = {S. I. Denisov and T. V. Lyutyy and K. N. Trohidou},
907     title = {Magnetic relaxation in finite two-dimensional nanoparticle ensembles},
908     journal = {Physical Review B},
909     year = {2003},
910     volume = {67},
911     pages = {-},
912     number = {1},
913     month = {Jan 1},
914     abstract = {We study the slow phase of thermally activated magnetic relaxation
915 tim 2807 in finite two-dimensional ensembles of dipolar interacting ferromagnetic
916     nanoparticles whose easy axes of magnetization are perpendicular
917     to the distribution plane. We develop a method to numerically simulate
918     the magnetic relaxation for the case that the smallest heights of
919     the potential barriers between the equilibrium directions of the
920     nanoparticle magnetic moments are much larger than the thermal energy.
921     Within this framework, we analyze in detail the role that the correlations
922     of the nanoparticle magnetic moments and the finite size of the
923     nanoparticle ensemble play in magnetic relaxation.},
924 tim 2786 annote = {642XH Times Cited:11 Cited References Count:31},
925     issn = {1098-0121},
926     uri = {<Go to ISI>://000180830400056},
927 tim 2685 }
928    
929 tim 2786 @ARTICLE{Derreumaux1998,
930     author = {P. Derreumaux and T. Schlick},
931     title = {The loop opening/closing motion of the enzyme triosephosphate isomerase},
932     journal = {Biophysical Journal},
933     year = {1998},
934     volume = {74},
935     pages = {72-81},
936     number = {1},
937     month = {Jan},
938     abstract = {To explore the origin of the large-scale motion of triosephosphate
939 tim 2807 isomerase's flexible loop (residues 166 to 176) at the active site,
940     several simulation protocols are employed both for the free enzyme
941     in vacuo and for the free enzyme with some solvent modeling: high-temperature
942     Langevin dynamics simulations, sampling by a #dynamics##driver#
943     approach, and potential-energy surface calculations. Our focus is
944     on obtaining the energy barrier to the enzyme's motion and establishing
945     the nature of the loop movement. Previous calculations did not determine
946     this energy barrier and the effect of solvent on the barrier. High-temperature
947     molecular dynamics simulations and crystallographic studies have
948     suggested a rigid-body motion with two hinges located at both ends
949     of the loop; Brownian dynamics simulations at room temperature pointed
950     to a very flexible behavior. The present simulations and analyses
951     reveal that although solute/solvent hydrogen bonds play a crucial
952     role in lowering the energy along the pathway, there still remains
953     a high activation barrier, This finding clearly indicates that,
954     if the loop opens and closes in the absence of a substrate at standard
955     conditions (e.g., room temperature, appropriate concentration of
956     isomerase), the time scale for transition is not in the nanosecond
957     but rather the microsecond range. Our results also indicate that
958     in the context of spontaneous opening in the free enzyme, the motion
959     is of rigid-body type and that the specific interaction between
960     residues Ala(176) and Tyr(208) plays a crucial role in the loop
961     opening/closing mechanism.},
962 tim 2786 annote = {Zl046 Times Cited:30 Cited References Count:29},
963     issn = {0006-3495},
964     uri = {<Go to ISI>://000073393400009},
965 tim 2685 }
966    
967 tim 2786 @ARTICLE{Dullweber1997,
968     author = {A. Dullweber and B. Leimkuhler and R. McLachlan},
969     title = {Symplectic splitting methods for rigid body molecular dynamics},
970     journal = {Journal of Chemical Physics},
971     year = {1997},
972     volume = {107},
973     pages = {5840-5851},
974     number = {15},
975     month = {Oct 15},
976     abstract = {Rigid body molecular models possess symplectic structure and time-reversal
977 tim 2807 symmetry. Standard numerical integration methods destroy both properties,
978     introducing nonphysical dynamical behavior such as numerically induced
979     dissipative states and drift in the energy during long term simulations.
980     This article describes the construction, implementation, and practical
981     application of fast explicit symplectic-reversible integrators for
982     multiple rigid body molecular simulations, These methods use a reduction
983     to Euler equations for the free rigid body, together with a symplectic
984     splitting technique. In every time step, the orientational dynamics
985     of each rigid body is integrated by a sequence of planar rotations.
986     Besides preserving the symplectic and reversible structures of the
987     flow, this scheme accurately conserves the total angular momentum
988     of a system of interacting rigid bodies. Excellent energy conservation
989     fan be obtained relative to traditional methods, especially in long-time
990     simulations. The method is implemented in a research code, ORIENT
991     and compared with a quaternion/extrapolation scheme for the TIP4P
992     model of water. Our experiments show that the symplectic-reversible
993     scheme is far superior to the more traditional quaternion method.
994     (C) 1997 American Institute of Physics.},
995 tim 2786 annote = {Ya587 Times Cited:35 Cited References Count:32},
996     issn = {0021-9606},
997     uri = {<Go to ISI>://A1997YA58700024},
998 tim 2685 }
999    
1000 tim 2840 @BOOK{Gamma1994,
1001     title = {Design Patterns: Elements of Reusable Object-Oriented Software},
1002     publisher = {Perason Education},
1003     year = {1994},
1004     author = {E. Gamma, R. Helm, R. Johnson and J. Vlissides},
1005     address = {London},
1006     chapter = {7},
1007     }
1008    
1009 tim 2786 @ARTICLE{Edwards2005,
1010     author = {S. A. Edwards and D. R. M. Williams},
1011     title = {Stretching a single diblock copolymer in a selective solvent: Langevin
1012 tim 2807 dynamics simulations},
1013 tim 2786 journal = {Macromolecules},
1014     year = {2005},
1015     volume = {38},
1016     pages = {10590-10595},
1017     number = {25},
1018     month = {Dec 13},
1019     abstract = {Using the Langevin dynamics technique, we have carried out simulations
1020 tim 2807 of a single-chain flexible diblock copolymer. The polymer consists
1021     of two blocks of equal length, one very poorly solvated and the
1022     other close to theta-conditions. We study what happens when such
1023     a polymer is stretched, for a range of different stretching speeds,
1024     and correlate our observations with features in the plot of force
1025     vs extension. We find that at slow speeds this force profile does
1026     not increase monotonically, in disagreement with earlier predictions,
1027     and that at high speeds there is a strong dependence on which end
1028     of the polymer is pulled, as well as a high level of hysteresis.},
1029 tim 2786 annote = {992EC Times Cited:0 Cited References Count:13},
1030     issn = {0024-9297},
1031     uri = {<Go to ISI>://000233866200035},
1032 tim 2685 }
1033    
1034 tim 2786 @ARTICLE{Egberts1988,
1035     author = {E. Egberts and H. J. C. Berendsen},
1036     title = {Molecular-Dynamics Simulation of a Smectic Liquid-Crystal with Atomic
1037 tim 2807 Detail},
1038 tim 2786 journal = {Journal of Chemical Physics},
1039     year = {1988},
1040     volume = {89},
1041     pages = {3718-3732},
1042     number = {6},
1043     month = {Sep 15},
1044     annote = {Q0188 Times Cited:219 Cited References Count:43},
1045     issn = {0021-9606},
1046     uri = {<Go to ISI>://A1988Q018800036},
1047 tim 2685 }
1048    
1049 tim 2786 @ARTICLE{Ermak1978,
1050     author = {D. L. Ermak and J. A. Mccammon},
1051     title = {Brownian Dynamics with Hydrodynamic Interactions},
1052     journal = {Journal of Chemical Physics},
1053     year = {1978},
1054     volume = {69},
1055     pages = {1352-1360},
1056     number = {4},
1057     annote = {Fp216 Times Cited:785 Cited References Count:42},
1058     issn = {0021-9606},
1059     uri = {<Go to ISI>://A1978FP21600004},
1060 tim 2685 }
1061    
1062 tim 2807 @ARTICLE{Evans1977,
1063     author = {D. J. Evans},
1064     title = {Representation of Orientation Space},
1065     journal = {Molecular Physics},
1066     year = {1977},
1067     volume = {34},
1068     pages = {317-325},
1069     number = {2},
1070     annote = {Ds757 Times Cited:271 Cited References Count:18},
1071     issn = {0026-8976},
1072     uri = {<Go to ISI>://A1977DS75700002},
1073     }
1074    
1075 tim 2786 @ARTICLE{Fennell2004,
1076     author = {C. J. Fennell and J. D. Gezelter},
1077     title = {On the structural and transport properties of the soft sticky dipole
1078 tim 2807 and related single-point water models},
1079 tim 2786 journal = {Journal of Chemical Physics},
1080     year = {2004},
1081     volume = {120},
1082     pages = {9175-9184},
1083     number = {19},
1084     month = {May 15},
1085     abstract = {The density maximum and temperature dependence of the self-diffusion
1086 tim 2807 constant were investigated for the soft sticky dipole (SSD) water
1087     model and two related reparametrizations of this single-point model.
1088     A combination of microcanonical and isobaric-isothermal molecular
1089     dynamics simulations was used to calculate these properties, both
1090     with and without the use of reaction field to handle long-range
1091     electrostatics. The isobaric-isothermal simulations of the melting
1092     of both ice-I-h and ice-I-c showed a density maximum near 260 K.
1093     In most cases, the use of the reaction field resulted in calculated
1094     densities which were significantly lower than experimental densities.
1095     Analysis of self-diffusion constants shows that the original SSD
1096     model captures the transport properties of experimental water very
1097     well in both the normal and supercooled liquid regimes. We also
1098     present our reparametrized versions of SSD for use both with the
1099     reaction field or without any long-range electrostatic corrections.
1100     These are called the SSD/RF and SSD/E models, respectively. These
1101     modified models were shown to maintain or improve upon the experimental
1102     agreement with the structural and transport properties that can
1103     be obtained with either the original SSD or the density-corrected
1104     version of the original model (SSD1). Additionally, a novel low-density
1105     ice structure is presented which appears to be the most stable ice
1106     structure for the entire SSD family. (C) 2004 American Institute
1107     of Physics.},
1108 tim 2786 annote = {816YY Times Cited:5 Cited References Count:39},
1109     issn = {0021-9606},
1110     uri = {<Go to ISI>://000221146400032},
1111 tim 2685 }
1112    
1113 tim 2786 @ARTICLE{Fernandes2002,
1114     author = {M. X. Fernandes and J. G. {de la Torre}},
1115     title = {Brownian dynamics simulation of rigid particles of arbitrary shape
1116 tim 2807 in external fields},
1117 tim 2786 journal = {Biophysical Journal},
1118     year = {2002},
1119     volume = {83},
1120     pages = {3039-3048},
1121     number = {6},
1122     month = {Dec},
1123     abstract = {We have developed a Brownian dynamics simulation algorithm to generate
1124 tim 2807 Brownian trajectories of an isolated, rigid particle of arbitrary
1125     shape in the presence of electric fields or any other external agents.
1126     Starting from the generalized diffusion tensor, which can be calculated
1127     with the existing HYDRO software, the new program BROWNRIG (including
1128     a case-specific subprogram for the external agent) carries out a
1129     simulation that is analyzed later to extract the observable dynamic
1130     properties. We provide a variety of examples of utilization of this
1131     method, which serve as tests of its performance, and also illustrate
1132     its applicability. Examples include free diffusion, transport in
1133     an electric field, and diffusion in a restricting environment.},
1134 tim 2786 annote = {633AD Times Cited:2 Cited References Count:43},
1135     issn = {0006-3495},
1136     uri = {<Go to ISI>://000180256300012},
1137 tim 2685 }
1138    
1139 tim 2840 @BOOK{Frenkel1996,
1140     title = {Understanding Molecular Simulation : From Algorithms to Applications},
1141     publisher = {Academic Press},
1142     year = {1996},
1143     author = {D. Frenkel and B. Smit},
1144     address = {New York},
1145     }
1146    
1147 tim 2786 @ARTICLE{Gay1981,
1148     author = {J. G. Gay and B. J. Berne},
1149     title = {Modification of the Overlap Potential to Mimic a Linear Site-Site
1150 tim 2807 Potential},
1151 tim 2786 journal = {Journal of Chemical Physics},
1152     year = {1981},
1153     volume = {74},
1154     pages = {3316-3319},
1155     number = {6},
1156     annote = {Lj347 Times Cited:482 Cited References Count:13},
1157     issn = {0021-9606},
1158     uri = {<Go to ISI>://A1981LJ34700029},
1159 tim 2685 }
1160    
1161 tim 2786 @ARTICLE{Gelin1999,
1162     author = {M. F. Gelin},
1163     title = {Inertial effects in the Brownian dynamics with rigid constraints},
1164     journal = {Macromolecular Theory and Simulations},
1165     year = {1999},
1166     volume = {8},
1167     pages = {529-543},
1168     number = {6},
1169     month = {Nov},
1170     abstract = {To investigate the influence of inertial effects on the dynamics of
1171 tim 2807 an assembly of beads subjected to rigid constraints and placed in
1172     a buffer medium, a convenient method to introduce suitable generalized
1173     coordinates is presented. Without any restriction on the nature
1174     of the soft forces involved (both stochastic and deterministic),
1175     pertinent Langevin equations are derived. Provided that the Brownian
1176     forces are Gaussian and Markovian, the corresponding Fokker-Planck
1177     equation (FPE) is obtained in the complete phase space of generalized
1178     coordinates and momenta. The correct short time behavior for correlation
1179     functions (CFs) of generalized coordinates is established, and the
1180     diffusion equation with memory (DEM) is deduced from the FPE in
1181     the high friction Limit. The DEM is invoked to perform illustrative
1182     calculations in two dimensions of the orientational CFs for once
1183     broken nonrigid rods immobilized on a surface. These calculations
1184     reveal that the CFs under certain conditions exhibit an oscillatory
1185     behavior, which is irreproducible within the standard diffusion
1186     equation. Several methods are considered for the approximate solution
1187     of the DEM, and their application to three dimensional DEMs is discussed.},
1188 tim 2786 annote = {257MM Times Cited:2 Cited References Count:82},
1189     issn = {1022-1344},
1190     uri = {<Go to ISI>://000083785700002},
1191 tim 2685 }
1192    
1193 tim 2840 @BOOK{Goldstein2001,
1194     title = {Classical Mechanics},
1195     publisher = {Addison Wesley},
1196     year = {2001},
1197     author = {H. Goldstein and C. Poole and J. Safko},
1198     address = {San Francisco},
1199     edition = {3rd},
1200     }
1201    
1202 tim 2786 @ARTICLE{Gray2003,
1203     author = {J. J. Gray and S. Moughon and C. Wang and O. Schueler-Furman and
1204 tim 2807 B. Kuhlman and C. A. Rohl and D. Baker},
1205 tim 2786 title = {Protein-protein docking with simultaneous optimization of rigid-body
1206 tim 2807 displacement and side-chain conformations},
1207 tim 2786 journal = {Journal of Molecular Biology},
1208     year = {2003},
1209     volume = {331},
1210     pages = {281-299},
1211     number = {1},
1212     month = {Aug 1},
1213     abstract = {Protein-protein docking algorithms provide a means to elucidate structural
1214 tim 2807 details for presently unknown complexes. Here, we present and evaluate
1215     a new method to predict protein-protein complexes from the coordinates
1216     of the unbound monomer components. The method employs a low-resolution,
1217     rigid-body, Monte Carlo search followed by simultaneous optimization
1218     of backbone displacement and side-chain conformations using Monte
1219     Carlo minimization. Up to 10(5) independent simulations are carried
1220     out, and the resulting #decoys# are ranked using an energy function
1221     dominated by van der Waals interactions, an implicit solvation model,
1222     and an orientation-dependent hydrogen bonding potential. Top-ranking
1223     decoys are clustered to select the final predictions. Small-perturbation
1224     studies reveal the formation of binding funnels in 42 of 54 cases
1225     using coordinates derived from the bound complexes and in 32 of
1226     54 cases using independently determined coordinates of one or both
1227     monomers. Experimental binding affinities correlate with the calculated
1228     score function and explain the predictive success or failure of
1229     many targets. Global searches using one or both unbound components
1230     predict at least 25% of the native residue-residue contacts in 28
1231     of the 32 cases where binding funnels exist. The results suggest
1232     that the method may soon be useful for generating models of biologically
1233     important complexes from the structures of the isolated components,
1234     but they also highlight the challenges that must be met to achieve
1235     consistent and accurate prediction of protein-protein interactions.
1236     (C) 2003 Elsevier Ltd. All rights reserved.},
1237 tim 2786 annote = {704QL Times Cited:48 Cited References Count:60},
1238     issn = {0022-2836},
1239     uri = {<Go to ISI>://000184351300022},
1240 tim 2685 }
1241    
1242 tim 2789 @ARTICLE{Greengard1994,
1243     author = {L. Greengard},
1244     title = {Fast Algorithms for Classical Physics},
1245     journal = {Science},
1246     year = {1994},
1247     volume = {265},
1248     pages = {909-914},
1249     number = {5174},
1250     month = {Aug 12},
1251     abstract = {Some of the recently developed fast summation methods that have arisen
1252 tim 2807 in scientific computing are described. These methods require an
1253     amount of work proportional to N or N log N to evaluate all pairwise
1254     interactions in an ensemble of N particles. Traditional methods,
1255     by contrast, require an amount of work proportional to N-2. AS a
1256     result, large-scale simulations can be carried out using only modest
1257     computer resources. In combination with supercomputers, it is possible
1258     to address questions that were previously out of reach. Problems
1259     from diffusion, gravitation, and wave propagation are considered.},
1260 tim 2789 annote = {Pb499 Times Cited:99 Cited References Count:44},
1261     issn = {0036-8075},
1262     uri = {<Go to ISI>://A1994PB49900031},
1263     }
1264    
1265     @ARTICLE{Greengard1987,
1266     author = {L. Greengard and V. Rokhlin},
1267     title = {A Fast Algorithm for Particle Simulations},
1268     journal = {Journal of Computational Physics},
1269     year = {1987},
1270     volume = {73},
1271     pages = {325-348},
1272     number = {2},
1273     month = {Dec},
1274     annote = {L0498 Times Cited:899 Cited References Count:7},
1275     issn = {0021-9991},
1276     uri = {<Go to ISI>://A1987L049800006},
1277     }
1278    
1279     @ARTICLE{Hairer1997,
1280     author = {E. Hairer and C. Lubich},
1281     title = {The life-span of backward error analysis for numerical integrators},
1282     journal = {Numerische Mathematik},
1283     year = {1997},
1284     volume = {76},
1285     pages = {441-462},
1286     number = {4},
1287     month = {Jun},
1288     abstract = {Backward error analysis is a useful tool for the study of numerical
1289 tim 2807 approximations to ordinary differential equations. The numerical
1290     solution is formally interpreted as the exact solution of a perturbed
1291     differential equation, given as a formal and usually divergent series
1292     in powers of the step size. For a rigorous analysis, this series
1293     has to be truncated. In this article we study the influence of this
1294     truncation to the difference between the numerical solution and
1295     the exact solution of the perturbed differential equation. Results
1296     on the long-time behaviour of numerical solutions are obtained in
1297     this way. We present applications to the numerical phase portrait
1298     near hyperbolic equilibrium points, to asymptotically stable periodic
1299     orbits and Hopf bifurcation, and to energy conservation and approximation
1300     of invariant tori in Hamiltonian systems.},
1301 tim 2789 annote = {Xj488 Times Cited:50 Cited References Count:19},
1302     issn = {0029-599X},
1303     uri = {<Go to ISI>://A1997XJ48800002},
1304     }
1305    
1306 tim 2786 @ARTICLE{Hao1993,
1307     author = {M. H. Hao and M. R. Pincus and S. Rackovsky and H. A. Scheraga},
1308     title = {Unfolding and Refolding of the Native Structure of Bovine Pancreatic
1309 tim 2807 Trypsin-Inhibitor Studied by Computer-Simulations},
1310 tim 2786 journal = {Biochemistry},
1311     year = {1993},
1312     volume = {32},
1313     pages = {9614-9631},
1314     number = {37},
1315     month = {Sep 21},
1316     abstract = {A new procedure for studying the folding and unfolding of proteins,
1317 tim 2807 with an application to bovine pancreatic trypsin inhibitor (BPTI),
1318     is reported. The unfolding and refolding of the native structure
1319     of the protein are characterized by the dimensions of the protein,
1320     expressed in terms of the three principal radii of the structure
1321     considered as an ellipsoid. A dynamic equation, describing the variations
1322     of the principal radii on the unfolding path, and a numerical procedure
1323     to solve this equation are proposed. Expanded and distorted conformations
1324     are refolded to the native structure by a dimensional-constraint
1325     energy minimization procedure. A unique and reproducible unfolding
1326     pathway for an intermediate of BPTI lacking the [30,51] disulfide
1327     bond is obtained. The resulting unfolded conformations are extended;
1328     they contain near-native local structure, but their longest principal
1329     radii are more than 2.5 times greater than that of the native structure.
1330     The most interesting finding is that the majority of expanded conformations,
1331     generated under various conditions, can be refolded closely to the
1332     native structure, as measured by the correct overall chain fold,
1333     by the rms deviations from the native structure of only 1.9-3.1
1334     angstrom, and by the energy differences of about 10 kcal/mol from
1335     the native structure. Introduction of the [30,51] disulfide bond
1336     at this stage, followed by minimization, improves the closeness
1337     of the refolded structures to the native structure, reducing the
1338     rms deviations to 0.9-2.0 angstrom. The unique refolding of these
1339     expanded structures over such a large conformational space implies
1340     that the folding is strongly dictated by the interactions in the
1341     amino acid sequence of BPTI. The simulations indicate that, under
1342     conditions that favor a compact structure as mimicked by the volume
1343     constraints in our algorithm; the expanded conformations have a
1344     strong tendency to move toward the native structure; therefore,
1345     they probably would be favorable folding intermediates. The results
1346     presented here support a general model for protein folding, i.e.,
1347     progressive formation of partially folded structural units, followed
1348     by collapse to the compact native structure. The general applicability
1349     of the procedure is also discussed.},
1350 tim 2786 annote = {Ly294 Times Cited:27 Cited References Count:57},
1351     issn = {0006-2960},
1352     uri = {<Go to ISI>://A1993LY29400014},
1353 tim 2685 }
1354    
1355 tim 2786 @ARTICLE{Hinsen2000,
1356     author = {K. Hinsen and A. J. Petrescu and S. Dellerue and M. C. Bellissent-Funel
1357 tim 2807 and G. R. Kneller},
1358 tim 2786 title = {Harmonicity in slow protein dynamics},
1359     journal = {Chemical Physics},
1360     year = {2000},
1361     volume = {261},
1362     pages = {25-37},
1363     number = {1-2},
1364     month = {Nov 1},
1365     abstract = {The slow dynamics of proteins around its native folded state is usually
1366 tim 2807 described by diffusion in a strongly anharmonic potential. In this
1367     paper, we try to understand the form and origin of the anharmonicities,
1368     with the principal aim of gaining a better understanding of the
1369     principal motion types, but also in order to develop more efficient
1370     numerical methods for simulating neutron scattering spectra of large
1371     proteins. First, we decompose a molecular dynamics (MD) trajectory
1372     of 1.5 ns for a C-phycocyanin dimer surrounded by a layer of water
1373     into three contributions that we expect to be independent: the global
1374     motion of the residues, the rigid-body motion of the sidechains
1375     relative to the backbone, and the internal deformations of the sidechains.
1376     We show that they are indeed almost independent by verifying the
1377     factorization of the incoherent intermediate scattering function.
1378     Then, we show that the global residue motions, which include all
1379     large-scale backbone motions, can be reproduced by a simple harmonic
1380     model which contains two contributions: a short-time vibrational
1381     term, described by a standard normal mode calculation in a local
1382     minimum, and a long-time diffusive term, described by Brownian motion
1383     in an effective harmonic potential. The potential and the friction
1384     constants were fitted to the MD data. The major anharmonic contribution
1385     to the incoherent intermediate scattering function comes from the
1386     rigid-body diffusion of the sidechains. This model can be used to
1387     calculate scattering functions for large proteins and for long-time
1388     scales very efficiently, and thus provides a useful complement to
1389     MD simulations, which are best suited for detailed studies on smaller
1390     systems or for shorter time scales. (C) 2000 Elsevier Science B.V.
1391     All rights reserved.},
1392 tim 2786 annote = {Sp. Iss. SI 368MT Times Cited:16 Cited References Count:31},
1393     issn = {0301-0104},
1394     uri = {<Go to ISI>://000090121700003},
1395 tim 2685 }
1396    
1397 tim 2786 @ARTICLE{Ho1992,
1398     author = {C. Ho and C. D. Stubbs},
1399     title = {Hydration at the Membrane Protein-Lipid Interface},
1400     journal = {Biophysical Journal},
1401     year = {1992},
1402     volume = {63},
1403     pages = {897-902},
1404     number = {4},
1405     month = {Oct},
1406     abstract = {Evidence has been found for the existence water at the protein-lipid
1407 tim 2807 hydrophobic interface ot the membrane proteins, gramicidin and apocytochrome
1408     C, using two related fluorescence spectroscopic approaches. The
1409     first approach exploited the fact that the presence of water in
1410     the excited state solvent cage of a fluorophore increases the rate
1411     of decay. For 1,6-diphenyl-1,3,5-hexatriene (DPH) and 1-palmitoyl-2-[[2-[4-(6-phenyl-trans-1,3,5-hexatrienyl)
1412     phenyl]ethyl]carbonyl]-3-sn-PC (DPH-PC), where the fluorophores
1413     are located in the hydrophobic core of the lipid bilayer, the introduction
1414     of gramicidin reduced the fluorescence lifetime, indicative of an
1415     increased presence of water in the bilayer. Since a high protein:lipid
1416     ratio was used, the fluorophores were forced to be adjacent to the
1417     protein hydrophobic surface, hence the presence of water in this
1418     region could be inferred. Cholesterol is known to reduce the water
1419     content of lipid bilayers and this effect was maintained at the
1420     protein-lipid interface with both gramicidin and apocytochrome C,
1421     again suggesting hydration in this region. The second approach was
1422     to use the fluorescence enhancement induced by exchanging deuterium
1423     oxide (D2O) for H2O. Both the fluorescence intensities of trimethylammonium-DPH,
1424     located in the lipid head group region, and of the gramicidin intrinsic
1425     tryptophans were greater in a D2O buffer compared with H2O, showing
1426     that the fluorophores were exposed to water in the bilayer at the
1427     protein-lipid interface. In the presence of cholesterol the fluorescence
1428     intensity ratio of D2O to H2O decreased, indicating a removal of
1429     water by the cholesterol, in keeping with the lifetime data. Altered
1430     hydration at the protein-lipid interface could affect conformation,
1431     thereby offering a new route by which membrane protein functioning
1432     may be modified.},
1433 tim 2786 annote = {Ju251 Times Cited:55 Cited References Count:44},
1434     issn = {0006-3495},
1435     uri = {<Go to ISI>://A1992JU25100002},
1436 tim 2685 }
1437    
1438 tim 2840 @BOOK{Hockney1981,
1439     title = {Computer Simulation Using Particles},
1440     publisher = {McGraw-Hill},
1441     year = {1981},
1442     author = {R.W. Hockney and J.W. Eastwood},
1443     address = {New York},
1444     }
1445    
1446 tim 2807 @ARTICLE{Hoover1985,
1447     author = {W. G. Hoover},
1448     title = {Canonical Dynamics - Equilibrium Phase-Space Distributions},
1449     journal = {Physical Review A},
1450     year = {1985},
1451     volume = {31},
1452     pages = {1695-1697},
1453     number = {3},
1454     annote = {Acr30 Times Cited:1809 Cited References Count:11},
1455     issn = {1050-2947},
1456     uri = {<Go to ISI>://A1985ACR3000056},
1457     }
1458    
1459 tim 2786 @ARTICLE{Huh2004,
1460     author = {Y. Huh and N. M. Cann},
1461     title = {Discrimination in isotropic, nematic, and smectic phases of chiral
1462 tim 2807 calamitic molecules: A computer simulation study},
1463 tim 2786 journal = {Journal of Chemical Physics},
1464     year = {2004},
1465     volume = {121},
1466     pages = {10299-10308},
1467     number = {20},
1468     month = {Nov 22},
1469     abstract = {Racemic fluids of chiral calamitic molecules are investigated with
1470 tim 2807 molecular dynamics simulations. In particular, the phase behavior
1471     as a function of density is examined for eight racemates. The relationship
1472     between chiral discrimination and orientational order in the phase
1473     is explored. We find that the transition from the isotropic phase
1474     to a liquid crystal phase is accompanied by an increase in chiral
1475     discrimination, as measured by differences in radial distributions.
1476     Among ordered phases, discrimination is largest for smectic phases
1477     with a significant preference for heterochiral contact within the
1478     layers. (C) 2004 American Institute of Physics.},
1479 tim 2786 annote = {870FJ Times Cited:0 Cited References Count:63},
1480     issn = {0021-9606},
1481     uri = {<Go to ISI>://000225042700059},
1482 tim 2685 }
1483    
1484 tim 2838 @ARTICLE{Humphrey1996,
1485     author = {W. Humphrey and A. Dalke and K. Schulten},
1486     title = {VMD: Visual molecular dynamics},
1487     journal = {Journal of Molecular Graphics},
1488     year = {1996},
1489     volume = {14},
1490     pages = {33-\&},
1491     number = {1},
1492     month = {Feb},
1493     abstract = {VMD is a molecular graphics program designed for the display and analysis
1494     of molecular assemblies, in particular biopolymers such as proteins
1495     and nucleic acids. VMD can simultaneously display any number of
1496     structures using a wide variety of rendering styles and coloring
1497     methods. Molecules are displayed as one or more ''representations,''
1498     in which each representation embodies a particular rendering method
1499     and coloring scheme for a selected subset of atoms. The atoms displayed
1500     in each representation are chosen using an extensive atom selection
1501     syntax, which includes Boolean operators and regular expressions.
1502     VMD provides a complete graphical user interface for program control,
1503     as well as a text interface using the Tcl embeddable parser to allow
1504     for complex scripts with variable substitution, control loops, and
1505     function calls. Full session logging is supported, which produces
1506     a VMD command script for later playback. High-resolution raster
1507     images of displayed molecules may be produced by generating input
1508     scripts for use by a number of photorealistic image-rendering applications.
1509     VMD has also been expressly designed with the ability to animate
1510     molecular dynamics (MD) simulation trajectories, imported either
1511     from files or from a direct connection to a running MD simulation.
1512     VMD is the visualization component of MDScope, a set of tools for
1513     interactive problem solving in structural biology, which also includes
1514     the parallel MD program NAMD, and the MDCOMM software used to connect
1515     the visualization and simulation programs. VMD is written in C++,
1516     using an object-oriented design; the program, including source code
1517     and extensive documentation, is freely available via anonymous ftp
1518     and through the World Wide Web.},
1519     annote = {Uh515 Times Cited:1418 Cited References Count:19},
1520     issn = {0263-7855},
1521     uri = {<Go to ISI>://A1996UH51500005},
1522     }
1523    
1524 tim 2786 @ARTICLE{Izaguirre2001,
1525     author = {J. A. Izaguirre and D. P. Catarello and J. M. Wozniak and R. D. Skeel},
1526     title = {Langevin stabilization of molecular dynamics},
1527     journal = {Journal of Chemical Physics},
1528     year = {2001},
1529     volume = {114},
1530     pages = {2090-2098},
1531     number = {5},
1532     month = {Feb 1},
1533     abstract = {In this paper we show the possibility of using very mild stochastic
1534 tim 2807 damping to stabilize long time step integrators for Newtonian molecular
1535     dynamics. More specifically, stable and accurate integrations are
1536     obtained for damping coefficients that are only a few percent of
1537     the natural decay rate of processes of interest, such as the velocity
1538     autocorrelation function. Two new multiple time stepping integrators,
1539     Langevin Molly (LM) and Brunger-Brooks-Karplus-Molly (BBK-M), are
1540     introduced in this paper. Both use the mollified impulse method
1541     for the Newtonian term. LM uses a discretization of the Langevin
1542     equation that is exact for the constant force, and BBK-M uses the
1543     popular Brunger-Brooks-Karplus integrator (BBK). These integrators,
1544     along with an extrapolative method called LN, are evaluated across
1545     a wide range of damping coefficient values. When large damping coefficients
1546     are used, as one would for the implicit modeling of solvent molecules,
1547     the method LN is superior, with LM closely following. However, with
1548     mild damping of 0.2 ps(-1), LM produces the best results, allowing
1549     long time steps of 14 fs in simulations containing explicitly modeled
1550     flexible water. With BBK-M and the same damping coefficient, time
1551     steps of 12 fs are possible for the same system. Similar results
1552     are obtained for a solvated protein-DNA simulation of estrogen receptor
1553     ER with estrogen response element ERE. A parallel version of BBK-M
1554     runs nearly three times faster than the Verlet-I/r-RESPA (reversible
1555     reference system propagator algorithm) when using the largest stable
1556     time step on each one, and it also parallelizes well. The computation
1557     of diffusion coefficients for flexible water and ER/ERE shows that
1558     when mild damping of up to 0.2 ps-1 is used the dynamics are not
1559     significantly distorted. (C) 2001 American Institute of Physics.},
1560 tim 2786 annote = {397CQ Times Cited:14 Cited References Count:36},
1561     issn = {0021-9606},
1562     uri = {<Go to ISI>://000166676100020},
1563 tim 2685 }
1564    
1565 tim 2840 @ARTICLE{Torre1977,
1566     author = {Jose Garcia De La Torre, V.A. Bloomfield},
1567     title = {Hydrodynamic properties of macromolecular complexes. I. Translation},
1568     journal = {Biopolymers},
1569     year = {1977},
1570     volume = {16},
1571     pages = {1747-1763},
1572     }
1573    
1574 tim 2841 @ARTICLE{Kale1999,
1575     author = {L. Kale and R. Skeel and M. Bhandarkar and R. Brunner and A. Gursoy
1576     and N. Krawetz and J. Phillips and A. Shinozaki and K. Varadarajan
1577     and K. Schulten},
1578     title = {NAMD2: Greater scalability for parallel molecular dynamics},
1579     journal = {Journal of Computational Physics},
1580     year = {1999},
1581     volume = {151},
1582     pages = {283-312},
1583     number = {1},
1584     month = {May 1},
1585     abstract = {Molecular dynamics programs simulate the behavior of biomolecular
1586     systems, leading to understanding of their functions. However, the
1587     computational complexity of such simulations is enormous. Parallel
1588     machines provide the potential to meet this computational challenge.
1589     To harness this potential, it is necessary to develop a scalable
1590     program. It is also necessary that the program be easily modified
1591     by application-domain programmers. The NAMD2 program presented in
1592     this paper seeks to provide these desirable features. It uses spatial
1593     decomposition combined with force decomposition to enhance scalability.
1594     It uses intelligent periodic load balancing, so as to maximally
1595     utilize the available compute power. It is modularly organized,
1596     and implemented using Charm++, a parallel C++ dialect, so as to
1597     enhance its modifiability. It uses a combination of numerical techniques
1598     and algorithms to ensure that energy drifts are minimized, ensuring
1599     accuracy in long running calculations. NAMD2 uses a portable run-time
1600     framework called Converse that also supports interoperability among
1601     multiple parallel paradigms. As a result, different components of
1602     applications can be written in the most appropriate parallel paradigms.
1603     NAMD2 runs on most parallel machines including workstation clusters
1604     and has yielded speedups in excess of 180 on 220 processors. This
1605     paper also describes the performance obtained on some benchmark
1606     applications. (C) 1999 Academic Press.},
1607     annote = {194FM Times Cited:373 Cited References Count:51},
1608     issn = {0021-9991},
1609     uri = {<Go to ISI>://000080181500013},
1610     }
1611    
1612 tim 2789 @ARTICLE{Kane2000,
1613     author = {C. Kane and J. E. Marsden and M. Ortiz and M. West},
1614     title = {Variational integrators and the Newmark algorithm for conservative
1615 tim 2807 and dissipative mechanical systems},
1616 tim 2789 journal = {International Journal for Numerical Methods in Engineering},
1617     year = {2000},
1618     volume = {49},
1619     pages = {1295-1325},
1620     number = {10},
1621     month = {Dec 10},
1622     abstract = {The purpose of this work is twofold. First, we demonstrate analytically
1623 tim 2807 that the classical Newmark family as well as related integration
1624     algorithms are variational in the sense of the Veselov formulation
1625     of discrete mechanics. Such variational algorithms are well known
1626     to be symplectic and momentum preserving and to often have excellent
1627     global energy behaviour. This analytical result is verified through
1628     numerical examples and is believed to be one of the primary reasons
1629     that this class of algorithms performs so well. Second, we develop
1630     algorithms for mechanical systems with forcing, and in particular,
1631     for dissipative systems. In this case, we develop integrators that
1632     are based on a discretization of the Lagrange d'Alembert principle
1633     as well as on a variational formulation of dissipation. It is demonstrated
1634     that these types of structured integrators have good numerical behaviour
1635     in terms of obtaining the correct amounts by which the energy changes
1636     over the integration run. Copyright (C) 2000 John Wiley & Sons,
1637     Ltd.},
1638 tim 2789 annote = {373CJ Times Cited:30 Cited References Count:41},
1639     issn = {0029-5981},
1640     uri = {<Go to ISI>://000165270600004},
1641     }
1642    
1643 tim 2786 @ARTICLE{Klimov1997,
1644     author = {D. K. Klimov and D. Thirumalai},
1645     title = {Viscosity dependence of the folding rates of proteins},
1646     journal = {Physical Review Letters},
1647     year = {1997},
1648     volume = {79},
1649     pages = {317-320},
1650     number = {2},
1651     month = {Jul 14},
1652     abstract = {The viscosity (eta) dependence of the folding rates for four sequences
1653 tim 2807 (the native state of three sequences is a beta sheet, while the
1654     fourth forms an alpha helix) is calculated for off-lattice models
1655     of proteins. Assuming that the dynamics is given by the Langevin
1656     equation, we show that the folding rates increase linearly at low
1657     viscosities eta, decrease as 1/eta at large eta, and have a maximum
1658     at intermediate values. The Kramers' theory of barrier crossing
1659     provides a quantitative fit of the numerical results. By mapping
1660     the simulation results to real proteins we estimate that for optimized
1661     sequences the time scale for forming a four turn alpha-helix topology
1662     is about 500 ns, whereas for beta sheet it is about 10 mu s.},
1663 tim 2786 annote = {Xk293 Times Cited:77 Cited References Count:17},
1664     issn = {0031-9007},
1665     uri = {<Go to ISI>://A1997XK29300035},
1666 tim 2685 }
1667    
1668 tim 2789 @ARTICLE{Kol1997,
1669     author = {A. Kol and B. B. Laird and B. J. Leimkuhler},
1670     title = {A symplectic method for rigid-body molecular simulation},
1671     journal = {Journal of Chemical Physics},
1672     year = {1997},
1673     volume = {107},
1674     pages = {2580-2588},
1675     number = {7},
1676     month = {Aug 15},
1677     abstract = {Rigid-body molecular dynamics simulations typically are performed
1678 tim 2807 in a quaternion representation. The nonseparable form of the Hamiltonian
1679     in quaternions prevents the use of a standard leapfrog (Verlet)
1680     integrator, so nonsymplectic Runge-Kutta, multistep, or extrapolation
1681     methods are generally used, This is unfortunate since symplectic
1682     methods like Verlet exhibit superior energy conservation in long-time
1683     integrations. In this article, we describe an alternative method,
1684     which we call RSHAKE (for rotation-SHAKE), in which the entire rotation
1685     matrix is evolved (using the scheme of McLachlan and Scovel [J.
1686     Nonlin. Sci, 16 233 (1995)]) in tandem with the particle positions.
1687     We employ a fast approximate Newton solver to preserve the orthogonality
1688     of the rotation matrix. We test our method on a system of soft-sphere
1689     dipoles and compare with quaternion evolution using a 4th-order
1690     predictor-corrector integrator, Although the short-time error of
1691     the quaternion algorithm is smaller for fixed time step than that
1692     for RSHAKE, the quaternion scheme exhibits an energy drift which
1693     is not observed in simulations with RSHAKE, hence a fixed energy
1694     tolerance can be achieved by using a larger time step, The superiority
1695     of RSHAKE increases with system size. (C) 1997 American Institute
1696     of Physics.},
1697 tim 2789 annote = {Xq332 Times Cited:11 Cited References Count:18},
1698     issn = {0021-9606},
1699     uri = {<Go to ISI>://A1997XQ33200046},
1700     }
1701    
1702 tim 2786 @ARTICLE{Lansac2001,
1703     author = {Y. Lansac and M. A. Glaser and N. A. Clark},
1704     title = {Microscopic structure and dynamics of a partial bilayer smectic liquid
1705 tim 2807 crystal},
1706 tim 2786 journal = {Physical Review E},
1707     year = {2001},
1708     volume = {6405},
1709     pages = {-},
1710     number = {5},
1711     month = {Nov},
1712     abstract = {Cyanobiphenyls (nCB's) represent a useful and intensively studied
1713 tim 2807 class of mesogens. Many of the peculiar properties of nCB's (e.g.,
1714     the occurence of the partial bilayer smectic-A(d) phase) are thought
1715     to be a manifestation of short-range antiparallel association of
1716     neighboring molecules, resulting from strong dipole-dipole interactions
1717     between cyano groups. To test and extend existing models of microscopic
1718     ordering in nCB's, we carry out large-scale atomistic simulation
1719     studies of the microscopic structure and dynamics of the Sm-A(d)
1720     phase of 4-octyl-4'-cyanobiphenyl (8CB). We compute a variety of
1721     thermodynamic, structural, and dynamical properties for this material,
1722     and make a detailed comparison of our results with experimental
1723     measurements in order to validate our molecular model. Semiquantitative
1724     agreement with experiment is found: the smectic layer spacing and
1725     mass density are well reproduced, translational diffusion constants
1726     are similar to experiment, but the orientational ordering of alkyl
1727     chains is overestimated. This simulation provides a detailed picture
1728     of molecular conformation, smectic layer structure, and intermolecular
1729     correlations in Sm-A(d) 8CB, and demonstrates that pronounced short-range
1730     antiparallel association of molecules arising from dipole-dipole
1731     interactions plays a dominant role in determining the molecular-scale
1732     structure of 8CB.},
1733 tim 2786 annote = {Part 1 496QF Times Cited:10 Cited References Count:60},
1734     issn = {1063-651X},
1735     uri = {<Go to ISI>://000172406900063},
1736 tim 2685 }
1737    
1738 tim 2786 @ARTICLE{Lansac2003,
1739     author = {Y. Lansac and P. K. Maiti and N. A. Clark and M. A. Glaser},
1740     title = {Phase behavior of bent-core molecules},
1741     journal = {Physical Review E},
1742     year = {2003},
1743     volume = {67},
1744     pages = {-},
1745     number = {1},
1746     month = {Jan},
1747     abstract = {Recently, a new class of smectic liquid crystal phases characterized
1748 tim 2807 by the spontaneous formation of macroscopic chiral domains from
1749     achiral bent-core molecules has been discovered. We have carried
1750     out Monte Carlo simulations of a minimal hard spherocylinder dimer
1751     model to investigate the role of excluded volume interactions in
1752     determining the phase behavior of bent-core materials and to probe
1753     the molecular origins of polar and chiral symmetry breaking. We
1754     present the phase diagram of hard spherocylinder dimers of length-diameter
1755     ratio of 5 as a function of pressure or density and dimer opening
1756     angle psi. With decreasing psi, a transition from a nonpolar to
1757     a polar smectic A phase is observed near psi=167degrees, and the
1758     nematic phase becomes thermodynamically unstable for psi<135degrees.
1759     Free energy calculations indicate that the antipolar smectic A (SmAP(A))
1760     phase is more stable than the polar smectic A phase (SmAP(F)). No
1761     chiral smectic or biaxial nematic phases were found.},
1762 tim 2786 annote = {Part 1 646CM Times Cited:15 Cited References Count:38},
1763     issn = {1063-651X},
1764     uri = {<Go to ISI>://000181017300042},
1765 tim 2685 }
1766    
1767 tim 2840 @BOOK{Leach2001,
1768     title = {Molecular Modeling: Principles and Applications},
1769     publisher = {Pearson Educated Limited},
1770     year = {2001},
1771     author = {A. Leach},
1772     address = {Harlow, England},
1773     edition = {2nd},
1774     }
1775    
1776 tim 2789 @ARTICLE{Leimkuhler1999,
1777     author = {B. Leimkuhler},
1778     title = {Reversible adaptive regularization: perturbed Kepler motion and classical
1779 tim 2807 atomic trajectories},
1780 tim 2789 journal = {Philosophical Transactions of the Royal Society of London Series
1781 tim 2807 a-Mathematical Physical and Engineering Sciences},
1782 tim 2789 year = {1999},
1783     volume = {357},
1784     pages = {1101-1133},
1785     number = {1754},
1786     month = {Apr 15},
1787     abstract = {Reversible and adaptive integration methods based on Kustaanheimo-Stiefel
1788 tim 2807 regularization and modified Sundman transformations are applied
1789     to simulate general perturbed Kepler motion and to compute classical
1790     trajectories of atomic systems (e.g. Rydberg atoms). The new family
1791     of reversible adaptive regularization methods also conserves angular
1792     momentum and exhibits superior energy conservation and numerical
1793     stability in long-time integrations. The schemes are appropriate
1794     for scattering, for astronomical calculations of escape time and
1795     long-term stability, and for classical and semiclassical studies
1796     of atomic dynamics. The components of an algorithm for trajectory
1797     calculations are described. Numerical experiments illustrate the
1798     effectiveness of the reversible approach.},
1799 tim 2789 annote = {199EE Times Cited:11 Cited References Count:48},
1800     issn = {1364-503X},
1801     uri = {<Go to ISI>://000080466800007},
1802     }
1803    
1804 tim 2840 @BOOK{Leimkuhler2004,
1805     title = {Simulating Hamiltonian Dynamics},
1806     publisher = {Cambridge University Press},
1807     year = {2004},
1808     author = {B. Leimkuhler and S. Reich},
1809     address = {Cambridge},
1810     }
1811    
1812 tim 2786 @ARTICLE{Levelut1981,
1813     author = {A. M. Levelut and R. J. Tarento and F. Hardouin and M. F. Achard
1814 tim 2807 and G. Sigaud},
1815 tim 2786 title = {Number of Sa Phases},
1816     journal = {Physical Review A},
1817     year = {1981},
1818     volume = {24},
1819     pages = {2180-2186},
1820     number = {4},
1821     annote = {Ml751 Times Cited:96 Cited References Count:16},
1822     issn = {1050-2947},
1823     uri = {<Go to ISI>://A1981ML75100057},
1824 tim 2685 }
1825    
1826 tim 2786 @ARTICLE{Lieb1982,
1827     author = {W. R. Lieb and M. Kovalycsik and R. Mendelsohn},
1828     title = {Do Clinical-Levels of General-Anesthetics Affect Lipid Bilayers -
1829 tim 2807 Evidence from Raman-Scattering},
1830 tim 2786 journal = {Biochimica Et Biophysica Acta},
1831     year = {1982},
1832     volume = {688},
1833     pages = {388-398},
1834     number = {2},
1835     annote = {Nu461 Times Cited:40 Cited References Count:28},
1836     issn = {0006-3002},
1837     uri = {<Go to ISI>://A1982NU46100012},
1838 tim 2685 }
1839    
1840 tim 2786 @ARTICLE{Link1997,
1841     author = {D. R. Link and G. Natale and R. Shao and J. E. Maclennan and N. A.
1842 tim 2807 Clark and E. Korblova and D. M. Walba},
1843 tim 2786 title = {Spontaneous formation of macroscopic chiral domains in a fluid smectic
1844 tim 2807 phase of achiral molecules},
1845 tim 2786 journal = {Science},
1846     year = {1997},
1847     volume = {278},
1848     pages = {1924-1927},
1849     number = {5345},
1850     month = {Dec 12},
1851     abstract = {A smectic liquid-crystal phase made from achiral molecules with bent
1852 tim 2807 cores was found to have fluid layers that exhibit two spontaneous
1853     symmetry-breaking instabilities: polar molecular orientational ordering
1854     about the layer normal and molecular tilt. These instabilities combine
1855     to form a chiral layer structure with a handedness that depends
1856     on the sign of the tilt. The bulk states are either antiferroelectric-racemic,
1857     with the layer polar direction and handedness alternating in sign
1858     from layer to layer, or antiferroelectric-chiral, which is of uniform
1859     layer handedness. Both states exhibit an electric field-induced
1860     transition from antiferroelectric to ferroelectric.},
1861 tim 2786 annote = {Yl002 Times Cited:407 Cited References Count:25},
1862     issn = {0036-8075},
1863     uri = {<Go to ISI>://A1997YL00200028},
1864 tim 2685 }
1865    
1866 tim 2786 @ARTICLE{Liwo2005,
1867     author = {A. Liwo and M. Khalili and H. A. Scheraga},
1868     title = {Ab initio simulations of protein folding pathways by molecular dynamics
1869 tim 2807 with the united-residue (UNRES) model of polypeptide chains},
1870 tim 2786 journal = {Febs Journal},
1871     year = {2005},
1872     volume = {272},
1873     pages = {359-360},
1874     month = {Jul},
1875     annote = {Suppl. 1 005MG Times Cited:0 Cited References Count:0},
1876     issn = {1742-464X},
1877     uri = {<Go to ISI>://000234826102043},
1878 tim 2685 }
1879    
1880 tim 2789 @ARTICLE{Luty1994,
1881     author = {B. A. Luty and M. E. Davis and I. G. Tironi and W. F. Vangunsteren},
1882     title = {A Comparison of Particle-Particle, Particle-Mesh and Ewald Methods
1883 tim 2807 for Calculating Electrostatic Interactions in Periodic Molecular-Systems},
1884 tim 2789 journal = {Molecular Simulation},
1885     year = {1994},
1886     volume = {14},
1887     pages = {11-20},
1888     number = {1},
1889     abstract = {We compare the Particle-Particle Particle-Mesh (PPPM) and Ewald methods
1890 tim 2807 for calculating electrostatic interactions in periodic molecular
1891     systems. A brief comparison of the theories shows that the methods
1892     are very similar differing mainly in the technique which is used
1893     to perform the ''k-space'' or mesh calculation. Because the PPPM
1894     utilizes the highly efficient numerical Fast Fourier Transform (FFT)
1895     method it requires significantly less computational effort than
1896     the Ewald method and scale's almost linearly with system size.},
1897 tim 2789 annote = {Qf464 Times Cited:50 Cited References Count:20},
1898     issn = {0892-7022},
1899     uri = {<Go to ISI>://A1994QF46400002},
1900     }
1901    
1902 tim 2840 @BOOK{Marion1990,
1903     title = {Classical Dynamics of Particles and Systems},
1904     publisher = {Academic Press},
1905     year = {1990},
1906     author = {J.~B. Marion},
1907     address = {New York},
1908     edition = {2rd},
1909     }
1910    
1911 tim 2807 @ARTICLE{Marrink1994,
1912     author = {S. J. Marrink and H. J. C. Berendsen},
1913     title = {Simulation of Water Transport through a Lipid-Membrane},
1914     journal = {Journal of Physical Chemistry},
1915     year = {1994},
1916     volume = {98},
1917     pages = {4155-4168},
1918     number = {15},
1919     month = {Apr 14},
1920     abstract = {To obtain insight in the process of water permeation through a lipid
1921     membrane, we performed molecular dynamics simulations on a phospholipid
1922     (DPPC)/water system with atomic detail. Since the actual process
1923     of permeation is too slow to be studied directly, we deduced the
1924     permeation rate indirectly via computation of the free energy and
1925     diffusion rate profiles of a water molecule across the bilayer.
1926     We conclude that the permeation of water through a lipid membrane
1927     cannot be described adequately by a simple homogeneous solubility-diffusion
1928     model. Both the excess free energy and the diffusion rate strongly
1929     depend on the position in the membrane, as a result from the inhomogeneous
1930     nature of the membrane. The calculated excess free energy profile
1931     has a shallow slope and a maximum height of 26 kJ/mol. The diffusion
1932     rate is highest in the middle of the membrane where the lipid density
1933     is low. In the interfacial region almost all water molecules are
1934     bound by the lipid headgroups, and the diffusion turns out to be
1935     1 order of magnitude smaller. The total transport process is essentially
1936     determined by the free energy barrier. The rate-limiting step is
1937     the permeation through the dense part of the lipid tails, where
1938     the resistance is highest. We found a permeation rate of 7(+/-3)
1939     x 10(-2) cm/s at 350 K, comparable to experimental values for DPPC
1940     membranes, if corrected for the temperature of the simulation. Taking
1941     the inhomogeneity of the membrane into account, we define a new
1942     ''four-region'' model which seems to be more realistic than the
1943     ''two-phase'' solubility-diffusion model.},
1944     annote = {Ng219 Times Cited:187 Cited References Count:25},
1945     issn = {0022-3654},
1946     uri = {<Go to ISI>://A1994NG21900040},
1947     }
1948    
1949 tim 2789 @ARTICLE{Marsden1998,
1950     author = {J. E. Marsden and G. W. Patrick and S. Shkoller},
1951     title = {Multisymplectic geometry, variational integrators, and nonlinear
1952 tim 2807 PDEs},
1953 tim 2789 journal = {Communications in Mathematical Physics},
1954     year = {1998},
1955     volume = {199},
1956     pages = {351-395},
1957     number = {2},
1958     month = {Dec},
1959     abstract = {This paper presents a geometric-variational approach to continuous
1960 tim 2807 and discrete mechanics and field theories. Using multisymplectic
1961     geometry, we show that the existence of the fundamental geometric
1962     structures as well as their preservation along solutions can be
1963     obtained directly from the variational principle. In particular,
1964     we prove that a unique multisymplectic structure is obtained by
1965     taking the derivative of an action function, and use this structure
1966     to prove covariant generalizations of conservation of symplecticity
1967     and Noether's theorem. Natural discretization schemes for PDEs,
1968     which have these important preservation properties, then follow
1969     by choosing a discrete action functional. In the case of mechanics,
1970     we recover the variational symplectic integrators of Veselov type,
1971     while for PDEs we obtain covariant spacetime integrators which conserve
1972     the corresponding discrete multisymplectic form as well as the discrete
1973     momentum mappings corresponding to symmetries. We show that the
1974     usual notion of symplecticity along an infinite-dimensional space
1975     of fields can be naturally obtained by making a spacetime split.
1976     All of the aspects of our method are demonstrated with a nonlinear
1977     sine-Gordon equation, including computational results and a comparison
1978     with other discretization schemes.},
1979 tim 2789 annote = {154RH Times Cited:88 Cited References Count:36},
1980     issn = {0010-3616},
1981     uri = {<Go to ISI>://000077902200006},
1982     }
1983    
1984 tim 2838 @ARTICLE{Matthey2004,
1985     author = {T. Matthey and T. Cickovski and S. Hampton and A. Ko and Q. Ma and
1986     M. Nyerges and T. Raeder and T. Slabach and J. A. Izaguirre},
1987     title = {ProtoMol, an object-oriented framework for prototyping novel algorithms
1988     for molecular dynamics},
1989     journal = {Acm Transactions on Mathematical Software},
1990     year = {2004},
1991     volume = {30},
1992     pages = {237-265},
1993     number = {3},
1994     month = {Sep},
1995     abstract = {PROTOMOL is a high-performance framework in C++ for rapid prototyping
1996     of novel algorithms for molecular dynamics and related applications.
1997     Its flexibility is achieved primarily through the use of inheritance
1998     and design patterns (object-oriented programming): Performance is
1999     obtained by using templates that enable generation of efficient
2000     code for sections critical to performance (generic programming).
2001     The framework encapsulates important optimizations that can be used
2002     by developers, such as parallelism in the force computation. Its
2003     design is based on domain analysis of numerical integrators for
2004     molecular dynamics (MD) and of fast solvers for the force computation,
2005     particularly due to electrostatic interactions. Several new and
2006     efficient algorithms are implemented in PROTOMOL. Finally, it is
2007     shown that PROTOMOL'S sequential performance is excellent when compared
2008     to a leading MD program, and that it scales well for moderate number
2009     of processors. Binaries and source codes for Windows, Linux, Solaris,
2010     IRIX, HP-UX, and AIX platforms are available under open source license
2011     at http://protomol.sourceforge.net.},
2012     annote = {860EP Times Cited:2 Cited References Count:52},
2013     issn = {0098-3500},
2014     uri = {<Go to ISI>://000224325600001},
2015     }
2016    
2017 tim 2840 @ARTICLE{McLachlan1993,
2018     author = {R.~I McLachlan},
2019     title = {Explicit Lie-Poisson integration and the Euler equations},
2020     journal = {prl},
2021     year = {1993},
2022     volume = {71},
2023     pages = {3043-3046},
2024     }
2025    
2026 tim 2807 @ARTICLE{McLachlan1998,
2027 tim 2789 author = {R. I. McLachlan and G. R. W. Quispel},
2028     title = {Generating functions for dynamical systems with symmetries, integrals,
2029 tim 2807 and differential invariants},
2030 tim 2789 journal = {Physica D},
2031     year = {1998},
2032     volume = {112},
2033     pages = {298-309},
2034     number = {1-2},
2035     month = {Jan 15},
2036     abstract = {We give a survey and some new examples of generating functions for
2037 tim 2807 systems with symplectic structure, systems with a first integral,
2038     systems that preserve volume, and systems with symmetries and/or
2039     time-reversing symmetries. Both ODEs and maps are treated, and we
2040     discuss how generating functions may be used in the structure-preserving
2041     numerical integration of ODEs with the above properties.},
2042 tim 2789 annote = {Yt049 Times Cited:7 Cited References Count:26},
2043     issn = {0167-2789},
2044     uri = {<Go to ISI>://000071558900021},
2045     }
2046    
2047 tim 2807 @ARTICLE{McLachlan1998a,
2048 tim 2789 author = {R. I. McLachlan and G. R. W. Quispel and G. S. Turner},
2049     title = {Numerical integrators that preserve symmetries and reversing symmetries},
2050     journal = {Siam Journal on Numerical Analysis},
2051     year = {1998},
2052     volume = {35},
2053     pages = {586-599},
2054     number = {2},
2055     month = {Apr},
2056     abstract = {We consider properties of flows, the relationships between them, and
2057 tim 2807 whether numerical integrators can be made to preserve these properties.
2058     This is done in the context of automorphisms and antiautomorphisms
2059     of a certain group generated by maps associated to vector fields.
2060     This new framework unifies several known constructions. We also
2061     use the concept of #covariance# of a numerical method with respect
2062     to a group of coordinate transformations. The main application is
2063     to explore the relationship between spatial symmetries, reversing
2064     symmetries, and time symmetry of flows and numerical integrators.},
2065 tim 2789 annote = {Zc449 Times Cited:14 Cited References Count:33},
2066     issn = {0036-1429},
2067     uri = {<Go to ISI>://000072580500010},
2068     }
2069    
2070 tim 2786 @ARTICLE{McLachlan2005,
2071     author = {R. I. McLachlan and A. Zanna},
2072     title = {The discrete Moser-Veselov algorithm for the free rigid body, revisited},
2073     journal = {Foundations of Computational Mathematics},
2074     year = {2005},
2075     volume = {5},
2076     pages = {87-123},
2077     number = {1},
2078     month = {Feb},
2079     abstract = {In this paper we revisit the Moser-Veselov description of the free
2080 tim 2807 rigid body in body coordinates, which, in the 3 x 3 case, can be
2081     implemented as an explicit, second-order, integrable approximation
2082     of the continuous solution. By backward error analysis, we study
2083     the modified vector field which is integrated exactly by the discrete
2084     algorithm. We deduce that the discrete Moser-Veselov (DMV) is well
2085     approximated to higher order by time reparametrizations of the continuous
2086     equations (modified vector field). We use the modified vector field
2087     to scale the initial data of the DMV to improve the order of the
2088     approximation and show the equivalence of the DMV and the RATTLE
2089     algorithm. Numerical integration with these preprocessed initial
2090     data is several orders of magnitude more accurate than the original
2091     DMV and RATTLE approach.},
2092 tim 2786 annote = {911NS Times Cited:0 Cited References Count:14},
2093     issn = {1615-3375},
2094     uri = {<Go to ISI>://000228011900003},
2095 tim 2685 }
2096    
2097 tim 2838 @ARTICLE{Meineke2005,
2098     author = {M. A. Meineke and C. F. Vardeman and T. Lin and C. J. Fennell and
2099     J. D. Gezelter},
2100     title = {OOPSE: An object-oriented parallel simulation engine for molecular
2101     dynamics},
2102     journal = {Journal of Computational Chemistry},
2103     year = {2005},
2104     volume = {26},
2105     pages = {252-271},
2106     number = {3},
2107     month = {Feb},
2108     abstract = {OOPSE is a new molecular dynamics simulation program that is capable
2109     of efficiently integrating equations of motion for atom types with
2110     orientational degrees of freedom (e.g. #sticky# atoms and point
2111     dipoles). Transition metals can also be simulated using the embedded
2112     atom method (EAM) potential included in the code. Parallel simulations
2113     are carried out using the force-based decomposition method. Simulations
2114     are specified using a very simple C-based meta-data language. A
2115     number of advanced integrators are included, and the basic integrator
2116     for orientational dynamics provides substantial improvements over
2117     older quaternion-based schemes. (C) 2004 Wiley Periodicals, Inc.},
2118     annote = {891CF Times Cited:1 Cited References Count:56},
2119     issn = {0192-8651},
2120     uri = {<Go to ISI>://000226558200006},
2121     }
2122    
2123 tim 2807 @ARTICLE{Melchionna1993,
2124     author = {S. Melchionna and G. Ciccotti and B. L. Holian},
2125     title = {Hoover Npt Dynamics for Systems Varying in Shape and Size},
2126     journal = {Molecular Physics},
2127     year = {1993},
2128     volume = {78},
2129     pages = {533-544},
2130     number = {3},
2131     month = {Feb 20},
2132     abstract = {In this paper we write down equations of motion (following the approach
2133     pioneered by Hoover) for an exact isothermal-isobaric molecular
2134     dynamics simulation, and we extend them to multiple thermostating
2135     rates, to a shape-varying cell and to molecular systems, coherently
2136     with the previous 'extended system method'. An integration scheme
2137     is proposed together with a numerical illustration of the method.},
2138     annote = {Kq355 Times Cited:172 Cited References Count:17},
2139     issn = {0026-8976},
2140     uri = {<Go to ISI>://A1993KQ35500002},
2141     }
2142    
2143 tim 2786 @ARTICLE{Memmer2002,
2144     author = {R. Memmer},
2145     title = {Liquid crystal phases of achiral banana-shaped molecules: a computer
2146 tim 2807 simulation study},
2147 tim 2786 journal = {Liquid Crystals},
2148     year = {2002},
2149     volume = {29},
2150     pages = {483-496},
2151     number = {4},
2152     month = {Apr},
2153     abstract = {The phase behaviour of achiral banana-shaped molecules was studied
2154 tim 2807 by computer simulation. The banana-shaped molecules were described
2155     by model intermolecular interactions based on the Gay-Berne potential.
2156     The characteristic molecular structure was considered by joining
2157     two calamitic Gay-Berne particles through a bond to form a biaxial
2158     molecule of point symmetry group C-2v with a suitable bending angle.
2159     The dependence on temperature of systems of N=1024 rigid banana-shaped
2160     molecules with bending angle phi=140degrees has been studied by
2161     means of Monte Carlo simulations in the isobaric-isothermal ensemble
2162     (NpT). On cooling an isotropic system, two phase transitions characterized
2163     by phase transition enthalpy, entropy and relative volume change
2164     have been observed. For the first time by computer simulation of
2165     a many-particle system of banana-shaped molecules, at low temperature
2166     an untilted smectic phase showing a global phase biaxiality and
2167     a spontaneous local polarization in the layers, i.e. a local polar
2168     arrangement of the steric dipoles, with an antiferroelectric-like
2169     superstructure could be proven, a phase structure which recently
2170     has been discovered experimentally. Additionally, at intermediate
2171     temperature a nematic-like phase has been proved, whereas close
2172     to the transition to the smectic phase hints of a spontaneous achiral
2173     symmetry breaking have been determined. Here, in the absence of
2174     a layered structure a helical superstructure has been formed. All
2175     phases have been characterized by visual representations of selected
2176     configurations, scalar and pseudoscalar correlation functions, and
2177     order parameters.},
2178 tim 2786 annote = {531HT Times Cited:12 Cited References Count:37},
2179     issn = {0267-8292},
2180     uri = {<Go to ISI>://000174410500001},
2181 tim 2685 }
2182    
2183 tim 2840 @ARTICLE{Metropolis1949,
2184     author = {N. Metropolis and S. Ulam},
2185     title = {The $\mbox{Monte Carlo}$ Method},
2186     journal = {J. Am. Stat. Ass.},
2187     year = {1949},
2188     volume = {44},
2189     pages = {335-341},
2190     }
2191    
2192 tim 2786 @ARTICLE{Mielke2004,
2193     author = {S. P. Mielke and W. H. Fink and V. V. Krishnan and N. Gronbech-Jensen
2194 tim 2807 and C. J. Benham},
2195 tim 2786 title = {Transcription-driven twin supercoiling of a DNA loop: A Brownian
2196 tim 2807 dynamics study},
2197 tim 2786 journal = {Journal of Chemical Physics},
2198     year = {2004},
2199     volume = {121},
2200     pages = {8104-8112},
2201     number = {16},
2202     month = {Oct 22},
2203     abstract = {The torque generated by RNA polymerase as it tracks along double-stranded
2204 tim 2807 DNA can potentially induce long-range structural deformations integral
2205     to mechanisms of biological significance in both prokaryotes and
2206     eukaryotes. In this paper, we introduce a dynamic computer model
2207     for investigating this phenomenon. Duplex DNA is represented as
2208     a chain of hydrodynamic beads interacting through potentials of
2209     linearly elastic stretching, bending, and twisting, as well as excluded
2210     volume. The chain, linear when relaxed, is looped to form two open
2211     but topologically constrained subdomains. This permits the dynamic
2212     introduction of torsional stress via a centrally applied torque.
2213     We simulate by Brownian dynamics the 100 mus response of a 477-base
2214     pair B-DNA template to the localized torque generated by the prokaryotic
2215     transcription ensemble. Following a sharp rise at early times, the
2216     distributed twist assumes a nearly constant value in both subdomains,
2217     and a succession of supercoiling deformations occurs as superhelical
2218     stress is increasingly partitioned to writhe. The magnitude of writhe
2219     surpasses that of twist before also leveling off when the structure
2220     reaches mechanical equilibrium with the torsional load. Superhelicity
2221     is simultaneously right handed in one subdomain and left handed
2222     in the other, as predicted by the #transcription-induced##twin-supercoiled-domain#
2223     model [L. F. Liu and J. C. Wang, Proc. Natl. Acad. Sci. U.S.A. 84,
2224     7024 (1987)]. The properties of the chain at the onset of writhing
2225     agree well with predictions from theory, and the generated stress
2226     is ample for driving secondary structural transitions in physiological
2227     DNA. (C) 2004 American Institute of Physics.},
2228 tim 2786 annote = {861ZF Times Cited:3 Cited References Count:34},
2229     issn = {0021-9606},
2230     uri = {<Go to ISI>://000224456500064},
2231 tim 2685 }
2232    
2233 tim 2786 @ARTICLE{Naess2001,
2234     author = {S. N. Naess and H. M. Adland and A. Mikkelsen and A. Elgsaeter},
2235     title = {Brownian dynamics simulation of rigid bodies and segmented polymer
2236 tim 2807 chains. Use of Cartesian rotation vectors as the generalized coordinates
2237     describing angular orientations},
2238 tim 2786 journal = {Physica A},
2239     year = {2001},
2240     volume = {294},
2241     pages = {323-339},
2242     number = {3-4},
2243     month = {May 15},
2244     abstract = {The three Eulerian angles constitute the classical choice of generalized
2245 tim 2807 coordinates used to describe the three degrees of rotational freedom
2246     of a rigid body, but it has long been known that this choice yields
2247     singular equations of motion. The latter is also true when Eulerian
2248     angles are used in Brownian dynamics analyses of the angular orientation
2249     of single rigid bodies and segmented polymer chains. Starting from
2250     kinetic theory we here show that by instead employing the three
2251     components of Cartesian rotation vectors as the generalized coordinates
2252     describing angular orientation, no singularity appears in the configuration
2253     space diffusion equation and the associated Brownian dynamics algorithm.
2254     The suitability of Cartesian rotation vectors in Brownian dynamics
2255     simulations of segmented polymer chains with spring-like or ball-socket
2256     joints is discussed. (C) 2001 Elsevier Science B.V. All rights reserved.},
2257 tim 2786 annote = {433TA Times Cited:7 Cited References Count:19},
2258     issn = {0378-4371},
2259     uri = {<Go to ISI>://000168774800005},
2260 tim 2685 }
2261    
2262 tim 2786 @ARTICLE{Niori1996,
2263     author = {T. Niori and T. Sekine and J. Watanabe and T. Furukawa and H. Takezoe},
2264     title = {Distinct ferroelectric smectic liquid crystals consisting of banana
2265 tim 2807 shaped achiral molecules},
2266 tim 2786 journal = {Journal of Materials Chemistry},
2267     year = {1996},
2268     volume = {6},
2269     pages = {1231-1233},
2270     number = {7},
2271     month = {Jul},
2272     abstract = {The synthesis of a banana-shaped molecule is reported and it is found
2273 tim 2807 that the smectic phase which it forms is biaxial with the molecules
2274     packed in the best,direction into a layer. Because of this characteristic
2275     packing, spontaneous polarization appears parallel to the layer
2276     and switches on reversal of an applied electric field. This is the
2277     first obvious example of ferroelectricity in an achiral smectic
2278     phase and is ascribed to the C-2v symmetry of the molecular packing.},
2279 tim 2786 annote = {Ux855 Times Cited:447 Cited References Count:18},
2280     issn = {0959-9428},
2281     uri = {<Go to ISI>://A1996UX85500025},
2282 tim 2685 }
2283    
2284 tim 2786 @ARTICLE{Noguchi2002,
2285     author = {H. Noguchi and M. Takasu},
2286     title = {Structural changes of pulled vesicles: A Brownian dynamics simulation},
2287     journal = {Physical Review E},
2288     year = {2002},
2289     volume = {65},
2290     pages = {-},
2291     number = {5},
2292     month = {may},
2293     abstract = {We Studied the structural changes of bilayer vesicles induced by mechanical
2294 tim 2807 forces using a Brownian dynamics simulation. Two nanoparticles,
2295     which interact repulsively with amphiphilic molecules, are put inside
2296     a vesicle. The position of one nanoparticle is fixed, and the other
2297     is moved by a constant force as in optical-trapping experiments.
2298     First, the pulled vesicle stretches into a pear or tube shape. Then
2299     the inner monolayer in the tube-shaped region is deformed, and a
2300     cylindrical structure is formed between two vesicles. After stretching
2301     the cylindrical region, fission occurs near the moved vesicle. Soon
2302     after this the cylindrical region shrinks. The trapping force similar
2303     to 100 pN is needed to induce the formation of the cylindrical structure
2304     and fission.},
2305 tim 2786 annote = {Part 1 568PX Times Cited:5 Cited References Count:39},
2306     issn = {1063-651X},
2307     uri = {<Go to ISI>://000176552300084},
2308 tim 2685 }
2309    
2310 tim 2786 @ARTICLE{Noguchi2001,
2311     author = {H. Noguchi and M. Takasu},
2312     title = {Fusion pathways of vesicles: A Brownian dynamics simulation},
2313     journal = {Journal of Chemical Physics},
2314     year = {2001},
2315     volume = {115},
2316     pages = {9547-9551},
2317     number = {20},
2318     month = {Nov 22},
2319     abstract = {We studied the fusion dynamics of vesicles using a Brownian dynamics
2320 tim 2807 simulation. Amphiphilic molecules spontaneously form vesicles with
2321     a bilayer structure. Two vesicles come into contact and form a stalk
2322     intermediate, in which a necklike structure only connects the outer
2323     monolayers, as predicted by the stalk hypothesis. We have found
2324     a new pathway of pore opening from stalks at high temperature: the
2325     elliptic stalk bends and contact between the ends of the arc-shaped
2326     stalk leads to pore opening. On the other hand, we have clarified
2327     that the pore-opening process at low temperature agrees with the
2328     modified stalk model: a pore is induced by contact between the inner
2329     monolayers inside the stalk. (C) 2001 American Institute of Physics.},
2330 tim 2786 annote = {491UW Times Cited:48 Cited References Count:25},
2331     issn = {0021-9606},
2332     uri = {<Go to ISI>://000172129300049},
2333 tim 2685 }
2334    
2335 tim 2840 @BOOK{Olver1986,
2336     title = {Applications of Lie groups to differential equatitons},
2337     publisher = {Springer},
2338     year = {1986},
2339     author = {P.J. Olver},
2340     address = {New York},
2341     }
2342    
2343 tim 2789 @ARTICLE{Omelyan1998,
2344     author = {I. P. Omelyan},
2345     title = {On the numerical integration of motion for rigid polyatomics: The
2346 tim 2807 modified quaternion approach},
2347 tim 2789 journal = {Computers in Physics},
2348     year = {1998},
2349     volume = {12},
2350     pages = {97-103},
2351     number = {1},
2352     month = {Jan-Feb},
2353     abstract = {A revised version of the quaternion approach for numerical integration
2354 tim 2807 of the equations of motion for rigid polyatomic molecules is proposed.
2355     The modified approach is based on a formulation of the quaternion
2356     dynamics with constraints. This allows one to resolve the rigidity
2357     problem rigorously using constraint forces. It is shown that the
2358     procedure for preservation of molecular rigidity can be realized
2359     particularly simply within the Verlet algorithm in velocity form.
2360     We demonstrate that the method presented leads to an improved numerical
2361     stability with respect to the usual quaternion rescaling scheme
2362     and it is roughly as good as the cumbersome atomic-constraint technique.
2363     (C) 1998 American Institute of Physics.},
2364 tim 2789 annote = {Yx279 Times Cited:12 Cited References Count:28},
2365     issn = {0894-1866},
2366     uri = {<Go to ISI>://000072024300025},
2367     }
2368    
2369     @ARTICLE{Omelyan1998a,
2370     author = {I. P. Omelyan},
2371     title = {Algorithm for numerical integration of the rigid-body equations of
2372 tim 2807 motion},
2373 tim 2789 journal = {Physical Review E},
2374     year = {1998},
2375     volume = {58},
2376     pages = {1169-1172},
2377     number = {1},
2378     month = {Jul},
2379     abstract = {An algorithm for numerical integration of the rigid-body equations
2380 tim 2807 of motion is proposed. The algorithm uses the leapfrog scheme and
2381     the quantities involved are angular velocities and orientational
2382     variables that can be expressed in terms of either principal axes
2383     or quaternions. Due to specific features of the algorithm, orthonormality
2384     and unit norms of the orientational variables are integrals of motion,
2385     despite an approximate character of the produced trajectories. It
2386     is shown that the method presented appears to be the most efficient
2387     among all such algorithms known.},
2388 tim 2789 annote = {101XL Times Cited:8 Cited References Count:22},
2389     issn = {1063-651X},
2390     uri = {<Go to ISI>://000074893400151},
2391     }
2392    
2393 tim 2786 @ARTICLE{Orlandi2006,
2394     author = {S. Orlandi and R. Berardi and J. Steltzer and C. Zannoni},
2395     title = {A Monte Carlo study of the mesophases formed by polar bent-shaped
2396 tim 2807 molecules},
2397 tim 2786 journal = {Journal of Chemical Physics},
2398     year = {2006},
2399     volume = {124},
2400     pages = {-},
2401     number = {12},
2402     month = {Mar 28},
2403     abstract = {Liquid crystal phases formed by bent-shaped (or #banana#) molecules
2404 tim 2807 are currently of great interest. Here we investigate by Monte Carlo
2405     computer simulations the phases formed by rigid banana molecules
2406     modeled combining three Gay-Berne sites and containing either one
2407     central or two lateral and transversal dipoles. We show that changing
2408     the dipole position and orientation has a profound effect on the
2409     mesophase stability and molecular organization. In particular, we
2410     find a uniaxial nematic phase only for off-center dipolar models
2411     and tilted phases only for the one with terminal dipoles. (c) 2006
2412     American Institute of Physics.},
2413 tim 2786 annote = {028CP Times Cited:0 Cited References Count:42},
2414     issn = {0021-9606},
2415     uri = {<Go to ISI>://000236464000072},
2416 tim 2685 }
2417    
2418 tim 2789 @ARTICLE{Owren1992,
2419     author = {B. Owren and M. Zennaro},
2420     title = {Derivation of Efficient, Continuous, Explicit Runge-Kutta Methods},
2421     journal = {Siam Journal on Scientific and Statistical Computing},
2422     year = {1992},
2423     volume = {13},
2424     pages = {1488-1501},
2425     number = {6},
2426     month = {Nov},
2427     abstract = {Continuous, explicit Runge-Kutta methods with the minimal number of
2428 tim 2807 stages are considered. These methods are continuously differentiable
2429     if and only if one of the stages is the FSAL evaluation. A characterization
2430     of a subclass of these methods is developed for orders 3, 4, and
2431     5. It is shown how the free parameters of these methods can be used
2432     either to minimize the continuous truncation error coefficients
2433     or to maximize the stability region. As a representative for these
2434     methods the fifth-order method with minimized error coefficients
2435     is chosen, supplied with an error estimation method, and analysed
2436     by using the DETEST software. The results are compared with a similar
2437     implementation of the Dormand-Prince 5(4) pair with interpolant,
2438     showing a significant advantage in the new method for the chosen
2439     problems.},
2440 tim 2789 annote = {Ju936 Times Cited:25 Cited References Count:20},
2441     issn = {0196-5204},
2442     uri = {<Go to ISI>://A1992JU93600013},
2443     }
2444    
2445 tim 2786 @ARTICLE{Palacios1998,
2446     author = {J. L. Garcia-Palacios and F. J. Lazaro},
2447     title = {Langevin-dynamics study of the dynamical properties of small magnetic
2448 tim 2807 particles},
2449 tim 2786 journal = {Physical Review B},
2450     year = {1998},
2451     volume = {58},
2452     pages = {14937-14958},
2453     number = {22},
2454     month = {Dec 1},
2455     abstract = {The stochastic Landau-Lifshitz-Gilbert equation of motion for a classical
2456 tim 2807 magnetic moment is numerically solved (properly observing the customary
2457     interpretation of it as a Stratonovich stochastic differential equation),
2458     in order to study the dynamics of magnetic nanoparticles. The corresponding
2459     Langevin-dynamics approach allows for the study of the fluctuating
2460     trajectories of individual magnetic moments, where we have encountered
2461     remarkable phenomena in the overbarrier rotation process, such as
2462     crossing-back or multiple crossing of the potential barrier, rooted
2463     in the gyromagnetic nature of the system. Concerning averaged quantities,
2464     we study the linear dynamic response of the archetypal ensemble
2465     of noninteracting classical magnetic moments with axially symmetric
2466     magnetic anisotropy. The results are compared with different analytical
2467     expressions used to model the relaxation of nanoparticle ensembles,
2468     assessing their accuracy. It has been found that, among a number
2469     of heuristic expressions for the linear dynamic susceptibility,
2470     only the simple formula proposed by Shliomis and Stepanov matches
2471     the coarse features of the susceptibility reasonably. By comparing
2472     the numerical results with the asymptotic formula of Storonkin {Sov.
2473     Phys. Crystallogr. 30, 489 (1985) [Kristallografiya 30, 841 (1985)]},
2474     the effects of the intra-potential-well relaxation modes on the
2475     low-temperature longitudinal dynamic response have been assessed,
2476     showing their relatively small reflection in the susceptibility
2477     curves but their dramatic influence on the phase shifts. Comparison
2478     of the numerical results with the exact zero-damping expression
2479     for the transverse susceptibility by Garanin, Ishchenko, and Panina
2480     {Theor. Math. Phys. (USSR) 82, 169 (1990) [Teor. Mat. Fit. 82, 242
2481     (1990)]}, reveals a sizable contribution of the spread of the precession
2482     frequencies of the magnetic moment in the anisotropy field to the
2483     dynamic response at intermediate-to-high temperatures. [S0163-1829
2484     (98)00446-9].},
2485 tim 2786 annote = {146XW Times Cited:66 Cited References Count:45},
2486     issn = {0163-1829},
2487     uri = {<Go to ISI>://000077460000052},
2488 tim 2685 }
2489    
2490 tim 2838 @ARTICLE{Parr1995,
2491     author = {T. J. Parr and R. W. Quong},
2492     title = {Antlr - a Predicated-Ll(K) Parser Generator},
2493     journal = {Software-Practice \& Experience},
2494     year = {1995},
2495     volume = {25},
2496     pages = {789-810},
2497     number = {7},
2498     month = {Jul},
2499     abstract = {Despite the parsing power of LR/LALR algorithms, e.g. YACC, programmers
2500     often choose to write recursive-descent parsers by hand to obtain
2501     increased flexibility, better error handling, and ease of debugging.
2502     We introduce ANTLR, a public-domain parser generator that combines
2503     the flexibility of hand-coded parsing with the convenience of a
2504     parser generator, which is a component of PCCTS. ANTLR has many
2505     features that make it easier to use than other language tools. Most
2506     important, ANTLR provides predicates which let the programmer systematically
2507     direct the parse via arbitrary expressions using semantic and syntactic
2508     context; in practice, the use of predicates eliminates the need
2509     to hand-tweak the ANTLR output, even for difficult parsing problems.
2510     ANTLR also integrates the description of lexical and syntactic analysis,
2511     accepts LL(k) grammars for k > 1 with extended BNF notation, and
2512     can automatically generate abstract syntax trees. ANTLR is widely
2513     used, with over 1000 registered industrial and academic users in
2514     37 countries. It has been ported to many popular systems such as
2515     the PC, Macintosh, and a variety of UNIX platforms; a commercial
2516     C++ front-end has been developed as a result of one of our industrial
2517     collaborations.},
2518     annote = {Rk104 Times Cited:19 Cited References Count:10},
2519     issn = {0038-0644},
2520     uri = {<Go to ISI>://A1995RK10400004},
2521     }
2522    
2523 tim 2786 @ARTICLE{Pastor1988,
2524     author = {R. W. Pastor and B. R. Brooks and A. Szabo},
2525     title = {An Analysis of the Accuracy of Langevin and Molecular-Dynamics Algorithms},
2526     journal = {Molecular Physics},
2527     year = {1988},
2528     volume = {65},
2529     pages = {1409-1419},
2530     number = {6},
2531     month = {Dec 20},
2532     annote = {T1302 Times Cited:61 Cited References Count:26},
2533     issn = {0026-8976},
2534     uri = {<Go to ISI>://A1988T130200011},
2535 tim 2685 }
2536    
2537 tim 2786 @ARTICLE{Pelzl1999,
2538     author = {G. Pelzl and S. Diele and W. Weissflog},
2539     title = {Banana-shaped compounds - A new field of liquid crystals},
2540     journal = {Advanced Materials},
2541     year = {1999},
2542     volume = {11},
2543     pages = {707-724},
2544     number = {9},
2545     month = {Jul 5},
2546     annote = {220RC Times Cited:313 Cited References Count:49},
2547     issn = {0935-9648},
2548     uri = {<Go to ISI>://000081680400007},
2549 tim 2685 }
2550    
2551 tim 2786 @ARTICLE{Perram1985,
2552     author = {J. W. Perram and M. S. Wertheim},
2553     title = {Statistical-Mechanics of Hard Ellipsoids .1. Overlap Algorithm and
2554 tim 2807 the Contact Function},
2555 tim 2786 journal = {Journal of Computational Physics},
2556     year = {1985},
2557     volume = {58},
2558     pages = {409-416},
2559     number = {3},
2560     annote = {Akb93 Times Cited:71 Cited References Count:12},
2561     issn = {0021-9991},
2562     uri = {<Go to ISI>://A1985AKB9300008},
2563 tim 2685 }
2564    
2565 tim 2840 @ARTICLE{Rotne1969,
2566     author = {F. Perrin},
2567     title = {Variational treatment of hydrodynamic interaction in polymers},
2568     journal = {J. Chem. Phys.},
2569     year = {1969},
2570     volume = {50},
2571     pages = {4831¨C4837},
2572     }
2573    
2574     @ARTICLE{Perrin1936,
2575     author = {F. Perrin},
2576     title = {Mouvement brownien d'un ellipsoid(II). Rotation libre et depolarisation
2577     des fluorescences. Translation et diffusion de moleculese ellipsoidales},
2578     journal = {J. Phys. Radium},
2579     year = {1936},
2580     volume = {7},
2581     pages = {1-11},
2582     }
2583    
2584     @ARTICLE{Perrin1934,
2585     author = {F. Perrin},
2586     title = {Mouvement brownien d'un ellipsoid(I). Dispersion dielectrique pour
2587     des molecules ellipsoidales},
2588     journal = {J. Phys. Radium},
2589     year = {1934},
2590     volume = {5},
2591     pages = {497-511},
2592     }
2593    
2594     @ARTICLE{Petrache2000,
2595     author = {H.~I. Petrache and S.~W. Dodd and M.~F. Brown},
2596     title = {Area per Lipid and Acyl Length Distributions in Fluid Phosphatidylcholines
2597     Determined by $^2\text{H}$ {\sc nmr} Spectroscopy},
2598     journal = {Biophysical Journal},
2599     year = {2000},
2600     volume = {79},
2601     pages = {3172-3192},
2602     }
2603    
2604 tim 2786 @ARTICLE{Petrache1998,
2605     author = {H. I. Petrache and S. Tristram-Nagle and J. F. Nagle},
2606     title = {Fluid phase structure of EPC and DMPC bilayers},
2607     journal = {Chemistry and Physics of Lipids},
2608     year = {1998},
2609     volume = {95},
2610     pages = {83-94},
2611     number = {1},
2612     month = {Sep},
2613     abstract = {X-ray diffraction data taken at high instrumental resolution were
2614 tim 2807 obtained for EPC and DMPC under various osmotic pressures, primarily
2615     at T = 30 degrees C. The headgroup thickness D-HH was obtained from
2616     relative electron density profiles. By using volumetric results
2617     and by comparing to gel phase DPPC we obtain areas A(EPC)(F) = 69.4
2618     +/- 1.1 Angstrom(2) and A(DMPC)(F) = 59.7 +/- 0.2 Angstrom(2). The
2619     analysis also gives estimates for the areal compressibility K-A.
2620     The A(F) results lead to other structural results regarding membrane
2621     thickness and associated waters. Using the recently determined absolute
2622     electrons density profile of DPPC, the AF results also lead to absolute
2623     electron density profiles and absolute continuous transforms \F(q)\
2624     for EPC and DMPC, Limited measurements of temperature dependence
2625     show directly that fluctuations increase with increasing temperature
2626     and that a small decrease in bending modulus K-c accounts for the
2627     increased water spacing reported by Simon et al. (1995) Biophys.
2628     J. 69, 1473-1483. (C) 1998 Elsevier Science Ireland Ltd. All rights
2629     reserved.},
2630 tim 2786 annote = {130AT Times Cited:98 Cited References Count:39},
2631     issn = {0009-3084},
2632     uri = {<Go to ISI>://000076497600007},
2633 tim 2685 }
2634    
2635 tim 2840 @ARTICLE{Powles1973,
2636     author = {J.~G. Powles},
2637     title = {A general ellipsoid can not always serve as a modle for the rotational
2638     diffusion properties of arbitrary shaped rigid molecules},
2639     journal = {Advan. Phys.},
2640     year = {1973},
2641     volume = {22},
2642     pages = {1-56},
2643     }
2644    
2645 tim 2786 @ARTICLE{Recio2004,
2646     author = {J. Fernandez-Recio and M. Totrov and R. Abagyan},
2647     title = {Identification of protein-protein interaction sites from docking
2648 tim 2807 energy landscapes},
2649 tim 2786 journal = {Journal of Molecular Biology},
2650     year = {2004},
2651     volume = {335},
2652     pages = {843-865},
2653     number = {3},
2654     month = {Jan 16},
2655     abstract = {Protein recognition is one of the most challenging and intriguing
2656 tim 2807 problems in structural biology. Despite all the available structural,
2657     sequence and biophysical information about protein-protein complexes,
2658     the physico-chemical patterns, if any, that make a protein surface
2659     likely to be involved in protein-protein interactions, remain elusive.
2660     Here, we apply protein docking simulations and analysis of the interaction
2661     energy landscapes to identify protein-protein interaction sites.
2662     The new protocol for global docking based on multi-start global
2663     energy optimization of an allatom model of the ligand, with detailed
2664     receptor potentials and atomic solvation parameters optimized in
2665     a training set of 24 complexes, explores the conformational space
2666     around the whole receptor without restrictions. The ensembles of
2667     the rigid-body docking solutions generated by the simulations were
2668     subsequently used to project the docking energy landscapes onto
2669     the protein surfaces. We found that highly populated low-energy
2670     regions consistently corresponded to actual binding sites. The procedure
2671     was validated on a test set of 21 known protein-protein complexes
2672     not used in the training set. As much as 81% of the predicted high-propensity
2673     patch residues were located correctly in the native interfaces.
2674     This approach can guide the design of mutations on the surfaces
2675     of proteins, provide geometrical details of a possible interaction,
2676     and help to annotate protein surfaces in structural proteomics.
2677     (C) 2003 Elsevier Ltd. All rights reserved.},
2678 tim 2786 annote = {763GQ Times Cited:21 Cited References Count:59},
2679     issn = {0022-2836},
2680     uri = {<Go to ISI>://000188066900016},
2681 tim 2685 }
2682    
2683 tim 2786 @ARTICLE{Reddy2006,
2684     author = {R. A. Reddy and C. Tschierske},
2685     title = {Bent-core liquid crystals: polar order, superstructural chirality
2686 tim 2807 and spontaneous desymmetrisation in soft matter systems},
2687 tim 2786 journal = {Journal of Materials Chemistry},
2688     year = {2006},
2689     volume = {16},
2690     pages = {907-961},
2691     number = {10},
2692     abstract = {An overview on the recent developments in the field of liquid crystalline
2693 tim 2807 bent-core molecules (so-called banana liquid crystals) is given.
2694     After some basic issues, dealing with general aspects of the systematisation
2695     of the mesophases, development of polar order and chirality in this
2696     class of LC systems and explaining some general structure-property
2697     relationships, we focus on fascinating new developments in this
2698     field, such as modulated, undulated and columnar phases, so-called
2699     B7 phases, phase biaxiality, ferroelectric and antiferroelectric
2700     polar order in smectic and columnar phases, amplification and switching
2701     of chirality and the spontaneous formation of superstructural and
2702     supramolecular chirality.},
2703 tim 2786 annote = {021NS Times Cited:2 Cited References Count:316},
2704     issn = {0959-9428},
2705     uri = {<Go to ISI>://000235990500001},
2706 tim 2685 }
2707    
2708 tim 2789 @ARTICLE{Reich1999,
2709     author = {S. Reich},
2710     title = {Backward error analysis for numerical integrators},
2711     journal = {Siam Journal on Numerical Analysis},
2712     year = {1999},
2713     volume = {36},
2714     pages = {1549-1570},
2715     number = {5},
2716     month = {Sep 8},
2717     abstract = {Backward error analysis has become an important tool for understanding
2718 tim 2807 the long time behavior of numerical integration methods. This is
2719     true in particular for the integration of Hamiltonian systems where
2720     backward error analysis can be used to show that a symplectic method
2721     will conserve energy over exponentially long periods of time. Such
2722     results are typically based on two aspects of backward error analysis:
2723     (i) It can be shown that the modified vector fields have some qualitative
2724     properties which they share with the given problem and (ii) an estimate
2725     is given for the difference between the best interpolating vector
2726     field and the numerical method. These aspects have been investigated
2727     recently, for example, by Benettin and Giorgilli in [J. Statist.
2728     Phys., 74 (1994), pp. 1117-1143], by Hairer in [Ann. Numer. Math.,
2729     1 (1994), pp. 107-132], and by Hairer and Lubich in [Numer. Math.,
2730     76 (1997), pp. 441-462]. In this paper we aim at providing a unifying
2731     framework and a simplification of the existing results and corresponding
2732     proofs. Our approach to backward error analysis is based on a simple
2733     recursive definition of the modified vector fields that does not
2734     require explicit Taylor series expansion of the numerical method
2735     and the corresponding flow maps as in the above-cited works. As
2736     an application we discuss the long time integration of chaotic Hamiltonian
2737     systems and the approximation of time averages along numerically
2738     computed trajectories.},
2739 tim 2789 annote = {237HV Times Cited:43 Cited References Count:41},
2740     issn = {0036-1429},
2741     uri = {<Go to ISI>://000082650600010},
2742     }
2743    
2744 tim 2786 @ARTICLE{Ros2005,
2745     author = {M. B. Ros and J. L. Serrano and M. R. {de la Fuente} and C. L. Folcia},
2746     title = {Banana-shaped liquid crystals: a new field to explore},
2747     journal = {Journal of Materials Chemistry},
2748     year = {2005},
2749     volume = {15},
2750     pages = {5093-5098},
2751     number = {48},
2752     abstract = {The recent literature in the field of liquid crystals shows that banana-shaped
2753 tim 2807 mesogenic materials represent a bewitching and stimulating field
2754     of research that is interesting both academically and in terms of
2755     applications. Numerous topics are open to investigation in this
2756     area because of the rich phenomenology and new possibilities that
2757     these materials offer. The principal concepts in this area are reviewed
2758     along with recent results. In addition, new directions to stimulate
2759     further research activities are highlighted.},
2760 tim 2786 annote = {990XA Times Cited:3 Cited References Count:72},
2761     issn = {0959-9428},
2762     uri = {<Go to ISI>://000233775500001},
2763 tim 2685 }
2764    
2765 tim 2807 @ARTICLE{Roux1991,
2766     author = {B. Roux and M. Karplus},
2767     title = {Ion-Transport in a Gramicidin-Like Channel - Dynamics and Mobility},
2768     journal = {Journal of Physical Chemistry},
2769     year = {1991},
2770     volume = {95},
2771     pages = {4856-4868},
2772     number = {12},
2773     month = {Jun 13},
2774     abstract = {The mobility of water, Na+. and K+ has been calculated inside a periodic
2775     poly-(L,D)-alanine beta-helix, a model for the interior of the gramicidin
2776     channel. Because of the different dynamical regimes for the three
2777     species (high barrier for Na+, low barrier for K+, almost free diffusion
2778     for water), different methods are used to calculate the mobilities.
2779     By use of activated dynamics and a potential of mean force determined
2780     previously (Roux, B.; Karplus, M. Biophys. J. 1991, 59, 961), the
2781     barrier crossing rate of Na+ ion is determined. The motion of Na+
2782     at the transition state is controlled by local interactions and
2783     collisions with the neighboring carbonyls and the two nearest water
2784     molecules. There are significant deviations from transition-state
2785     theory; the transmission coefficient is equal to 0.11. The water
2786     and K+ motions are found to be well described by a diffusive model;
2787     the motion of K+ appears to be controlled by the diffusion of water.
2788     The time-dependent friction functions of Na+ and K+ ions in the
2789     periodic beta-helix are calculated and analyzed by using a generalized
2790     Langevin equation approach. Both Na+ and K+ suffer many rapid collisions,
2791     and their dynamics is overdamped and noninertial. Thus, the selectivity
2792     sequence of ions in the beta-helix is not influenced strongly by
2793     their masses.},
2794     annote = {Fr756 Times Cited:97 Cited References Count:65},
2795     issn = {0022-3654},
2796     uri = {<Go to ISI>://A1991FR75600049},
2797     }
2798    
2799 tim 2786 @ARTICLE{Roy2005,
2800     author = {A. Roy and N. V. Madhusudana},
2801     title = {A frustrated packing model for the B-6-B-1-SmAP(A) sequence of phases
2802 tim 2807 in banana shaped molecules},
2803 tim 2786 journal = {European Physical Journal E},
2804     year = {2005},
2805     volume = {18},
2806     pages = {253-258},
2807     number = {3},
2808     month = {Nov},
2809     abstract = {A vast majority of compounds with bent core or banana shaped molecules
2810 tim 2807 exhibit the phase sequence B-6-B-1-B-2 as the chain length is increased
2811     in a homologous series. The B-6 phase has an intercalated fluid
2812     lamellar structure with a layer spacing of half the molecular length.
2813     The B-1 phase has a two dimensionally periodic rectangular columnar
2814     structure. The B-2 phase has a monolayer fluid lamellar structure
2815     with molecules tilted with respect to the layer normal. Neglecting
2816     the tilt order of the molecules in the B-2 phase, we have developed
2817     a frustrated packing model to describe this phase sequence qualitatively.
2818     The model has some analogy with that of the frustrated smectics
2819     exhibited by highly polar rod like molecules.},
2820 tim 2786 annote = {985FW Times Cited:0 Cited References Count:30},
2821     issn = {1292-8941},
2822     uri = {<Go to ISI>://000233363300002},
2823 tim 2685 }
2824    
2825 tim 2789 @ARTICLE{Ryckaert1977,
2826     author = {J. P. Ryckaert and G. Ciccotti and H. J. C. Berendsen},
2827     title = {Numerical-Integration of Cartesian Equations of Motion of a System
2828 tim 2807 with Constraints - Molecular-Dynamics of N-Alkanes},
2829 tim 2789 journal = {Journal of Computational Physics},
2830     year = {1977},
2831     volume = {23},
2832     pages = {327-341},
2833     number = {3},
2834     annote = {Cz253 Times Cited:3680 Cited References Count:7},
2835     issn = {0021-9991},
2836     uri = {<Go to ISI>://A1977CZ25300007},
2837     }
2838    
2839     @ARTICLE{Sagui1999,
2840     author = {C. Sagui and T. A. Darden},
2841     title = {Molecular dynamics simulations of biomolecules: Long-range electrostatic
2842 tim 2807 effects},
2843 tim 2789 journal = {Annual Review of Biophysics and Biomolecular Structure},
2844     year = {1999},
2845     volume = {28},
2846     pages = {155-179},
2847     abstract = {Current computer simulations of biomolecules typically make use of
2848 tim 2807 classical molecular dynamics methods, as a very large number (tens
2849     to hundreds of thousands) of atoms are involved over timescales
2850     of many nanoseconds. The methodology for treating short-range bonded
2851     and van der Waals interactions has matured. However, long-range
2852     electrostatic interactions still represent a bottleneck in simulations.
2853     In this article, we introduce the basic issues for an accurate representation
2854     of the relevant electrostatic interactions. In spite of the huge
2855     computational time demanded by most biomolecular systems, it is
2856     no longer necessary to resort to uncontrolled approximations such
2857     as the use of cutoffs. In particular, we discuss the Ewald summation
2858     methods, the fast particle mesh methods, and the fast multipole
2859     methods. We also review recent efforts to understand the role of
2860     boundary conditions in systems with long-range interactions, and
2861     conclude with a short perspective on future trends.},
2862 tim 2789 annote = {213KJ Times Cited:126 Cited References Count:73},
2863     issn = {1056-8700},
2864     uri = {<Go to ISI>://000081271400008},
2865     }
2866    
2867 tim 2786 @ARTICLE{Sandu1999,
2868     author = {A. Sandu and T. Schlick},
2869     title = {Masking resonance artifacts in force-splitting methods for biomolecular
2870 tim 2807 simulations by extrapolative Langevin dynamics},
2871 tim 2786 journal = {Journal of Computational Physics},
2872     year = {1999},
2873     volume = {151},
2874     pages = {74-113},
2875     number = {1},
2876     month = {May 1},
2877     abstract = {Numerical resonance artifacts have become recognized recently as a
2878 tim 2807 limiting factor to increasing the timestep in multiple-timestep
2879     (MTS) biomolecular dynamics simulations. At certain timesteps correlated
2880     to internal motions (e.g., 5 fs, around half the period of the fastest
2881     bond stretch, T-min), visible inaccuracies or instabilities can
2882     occur. Impulse-MTS schemes are vulnerable to these resonance errors
2883     since large energy pulses are introduced to the governing dynamics
2884     equations when the slow forces are evaluated. We recently showed
2885     that such resonance artifacts can be masked significantly by applying
2886     extrapolative splitting to stochastic dynamics. Theoretical and
2887     numerical analyses of force-splitting integrators based on the Verlet
2888     discretization are reported here for linear models to explain these
2889     observations and to suggest how to construct effective integrators
2890     for biomolecular dynamics that balance stability with accuracy.
2891     Analyses for Newtonian dynamics demonstrate the severe resonance
2892     patterns of the Impulse splitting, with this severity worsening
2893     with the outer timestep. Delta t: Constant Extrapolation is generally
2894     unstable, but the disturbances do not grow with Delta t. Thus. the
2895     stochastic extrapolative combination can counteract generic instabilities
2896     and largely alleviate resonances with a sufficiently strong Langevin
2897     heat-bath coupling (gamma), estimates for which are derived here
2898     based on the fastest and slowest motion periods. These resonance
2899     results generally hold for nonlinear test systems: a water tetramer
2900     and solvated protein. Proposed related approaches such as Extrapolation/Correction
2901     and Midpoint Extrapolation work better than Constant Extrapolation
2902     only for timesteps less than T-min/2. An effective extrapolative
2903     stochastic approach for biomolecules that balances long-timestep
2904     stability with good accuracy for the fast subsystem is then applied
2905     to a biomolecule using a three-class partitioning: the medium forces
2906     are treated by Midpoint Extrapolation via position Verlet, and the
2907     slow forces are incorporated by Constant Extrapolation. The resulting
2908     algorithm (LN) performs well on a solvated protein system in terms
2909     of thermodynamic properties and yields an order of magnitude speedup
2910     with respect to single-timestep Langevin trajectories. Computed
2911     spectral density functions also show how the Newtonian modes can
2912     be approximated by using a small gamma in the range Of 5-20 ps(-1).
2913     (C) 1999 Academic Press.},
2914 tim 2786 annote = {194FM Times Cited:14 Cited References Count:32},
2915     issn = {0021-9991},
2916     uri = {<Go to ISI>://000080181500004},
2917 tim 2685 }
2918    
2919 tim 2807 @ARTICLE{Sasaki2004,
2920     author = {Y. Sasaki and R. Shukla and B. D. Smith},
2921     title = {Facilitated phosphatidylserine flip-flop across vesicle and cell
2922     membranes using urea-derived synthetic translocases},
2923     journal = {Organic \& Biomolecular Chemistry},
2924     year = {2004},
2925     volume = {2},
2926     pages = {214-219},
2927     number = {2},
2928     abstract = {Tris(2-aminoethyl) amine derivatives with appended urea and sulfonamide
2929     groups are shown to facilitate the translocation of fluorescent
2930     phospholipid probes and endogenous phosphatidylserine across vesicle
2931     and erythrocyte cell membranes. The synthetic translocases appear
2932     to operate by binding to the phospholipid head groups and forming
2933     lipophilic supramolecular complexes which diffuse through the non-polar
2934     interior of the bilayer membrane.},
2935     annote = {760PX Times Cited:8 Cited References Count:25},
2936     issn = {1477-0520},
2937     uri = {<Go to ISI>://000187843800012},
2938     }
2939    
2940 tim 2786 @ARTICLE{Satoh1996,
2941     author = {K. Satoh and S. Mita and S. Kondo},
2942     title = {Monte Carlo simulations using the dipolar Gay-Berne model: Effect
2943 tim 2807 of terminal dipole moment on mesophase formation},
2944 tim 2786 journal = {Chemical Physics Letters},
2945     year = {1996},
2946     volume = {255},
2947     pages = {99-104},
2948     number = {1-3},
2949     month = {Jun 7},
2950     abstract = {The effects of dipole-dipole interaction on mesophase formation are
2951 tim 2807 investigated with a Monte Carlo simulation using the dipolar Gay-Berne
2952     potential. It is shown that the dipole moment at the end of a molecule
2953     causes a shift in the nematic-isotropic transition toward higher
2954     temperature and a spread of the temperature range of the nematic
2955     phase and that layer structures with various interdigitations are
2956     formed in the smectic phase.},
2957 tim 2786 annote = {Uq975 Times Cited:32 Cited References Count:33},
2958     issn = {0009-2614},
2959     uri = {<Go to ISI>://A1996UQ97500017},
2960 tim 2685 }
2961    
2962 tim 2838 @ARTICLE{Schaps1999,
2963     author = {G. L. Schaps},
2964     title = {Compiler construction with ANTLR and Java - Tools for building tools},
2965     journal = {Dr Dobbs Journal},
2966     year = {1999},
2967     volume = {24},
2968     pages = {84-+},
2969     number = {3},
2970     month = {Mar},
2971     annote = {163EC Times Cited:0 Cited References Count:0},
2972     issn = {1044-789X},
2973     uri = {<Go to ISI>://000078389200023},
2974     }
2975    
2976 tim 2786 @ARTICLE{Shen2002,
2977     author = {M. Y. Shen and K. F. Freed},
2978     title = {Long time dynamics of met-enkephalin: Comparison of explicit and
2979 tim 2807 implicit solvent models},
2980 tim 2786 journal = {Biophysical Journal},
2981     year = {2002},
2982     volume = {82},
2983     pages = {1791-1808},
2984     number = {4},
2985     month = {Apr},
2986     abstract = {Met-enkephalin is one of the smallest opiate peptides. Yet, its dynamical
2987 tim 2807 structure and receptor docking mechanism are still not well understood.
2988     The conformational dynamics of this neuron peptide in liquid water
2989     are studied here by using all-atom molecular dynamics (MID) and
2990     implicit water Langevin dynamics (LD) simulations with AMBER potential
2991     functions and the three-site transferable intermolecular potential
2992     (TIP3P) model for water. To achieve the same simulation length in
2993     physical time, the full MID simulations require 200 times as much
2994     CPU time as the implicit water LID simulations. The solvent hydrophobicity
2995     and dielectric behavior are treated in the implicit solvent LD simulations
2996     by using a macroscopic solvation potential, a single dielectric
2997     constant, and atomic friction coefficients computed using the accessible
2998     surface area method with the TIP3P model water viscosity as determined
2999     here from MID simulations for pure TIP3P water. Both the local and
3000     the global dynamics obtained from the implicit solvent LD simulations
3001     agree very well with those from the explicit solvent MD simulations.
3002     The simulations provide insights into the conformational restrictions
3003     that are associated with the bioactivity of the opiate peptide dermorphin
3004     for the delta-receptor.},
3005 tim 2786 annote = {540MH Times Cited:36 Cited References Count:45},
3006     issn = {0006-3495},
3007     uri = {<Go to ISI>://000174932400010},
3008 tim 2685 }
3009    
3010 tim 2786 @ARTICLE{Shillcock2005,
3011     author = {J. C. Shillcock and R. Lipowsky},
3012     title = {Tension-induced fusion of bilayer membranes and vesicles},
3013     journal = {Nature Materials},
3014     year = {2005},
3015     volume = {4},
3016     pages = {225-228},
3017     number = {3},
3018     month = {Mar},
3019     annote = {901QJ Times Cited:9 Cited References Count:23},
3020     issn = {1476-1122},
3021     uri = {<Go to ISI>://000227296700019},
3022 tim 2685 }
3023    
3024 tim 2789 @ARTICLE{Shimada1993,
3025     author = {J. Shimada and H. Kaneko and T. Takada},
3026     title = {Efficient Calculations of Coulombic Interactions in Biomolecular
3027 tim 2807 Simulations with Periodic Boundary-Conditions},
3028 tim 2789 journal = {Journal of Computational Chemistry},
3029     year = {1993},
3030     volume = {14},
3031     pages = {867-878},
3032     number = {7},
3033     month = {Jul},
3034     abstract = {To make improved treatments of electrostatic interactions in biomacromolecular
3035 tim 2807 simulations, two possibilities are considered. The first is the
3036     famous particle-particle and particle-mesh (PPPM) method developed
3037     by Hockney and Eastwood, and the second is a new one developed here
3038     in their spirit but by the use of the multipole expansion technique
3039     suggested by Ladd. It is then numerically found that the new PPPM
3040     method gives more accurate results for a two-particle system at
3041     small separation of particles. Preliminary numerical examination
3042     of the various computational methods for a single configuration
3043     of a model BPTI-water system containing about 24,000 particles indicates
3044     that both of the PPPM methods give far more accurate values with
3045     reasonable computational cost than do the conventional truncation
3046     methods. It is concluded the two PPPM methods are nearly comparable
3047     in overall performance for the many-particle systems, although the
3048     first method has the drawback that the accuracy in the total electrostatic
3049     energy is not high for configurations of charged particles randomly
3050     generated.},
3051 tim 2789 annote = {Lh164 Times Cited:27 Cited References Count:47},
3052     issn = {0192-8651},
3053     uri = {<Go to ISI>://A1993LH16400011},
3054     }
3055    
3056 tim 2786 @ARTICLE{Skeel2002,
3057     author = {R. D. Skeel and J. A. Izaguirre},
3058     title = {An impulse integrator for Langevin dynamics},
3059     journal = {Molecular Physics},
3060     year = {2002},
3061     volume = {100},
3062     pages = {3885-3891},
3063     number = {24},
3064     month = {Dec 20},
3065     abstract = {The best simple method for Newtonian molecular dynamics is indisputably
3066 tim 2807 the leapfrog Stormer-Verlet method. The appropriate generalization
3067     to simple Langevin dynamics is unclear. An analysis is presented
3068     comparing an 'impulse method' (kick; fluctuate; kick), the 1982
3069     method of van Gunsteren and Berendsen, and the Brunger-Brooks-Karplus
3070     (BBK) method. It is shown how the impulse method and the van Gunsteren-Berendsen
3071     methods can be implemented as efficiently as the BBK method. Other
3072     considerations suggest that the impulse method is the best basic
3073     method for simple Langevin dynamics, with the van Gunsteren-Berendsen
3074     method a close contender.},
3075 tim 2786 annote = {633RX Times Cited:8 Cited References Count:22},
3076     issn = {0026-8976},
3077     uri = {<Go to ISI>://000180297200014},
3078 tim 2685 }
3079    
3080 tim 2786 @ARTICLE{Skeel1997,
3081     author = {R. D. Skeel and G. H. Zhang and T. Schlick},
3082     title = {A family of symplectic integrators: Stability, accuracy, and molecular
3083 tim 2807 dynamics applications},
3084 tim 2786 journal = {Siam Journal on Scientific Computing},
3085     year = {1997},
3086     volume = {18},
3087     pages = {203-222},
3088     number = {1},
3089     month = {Jan},
3090     abstract = {The following integration methods for special second-order ordinary
3091 tim 2807 differential equations are studied: leapfrog, implicit midpoint,
3092     trapezoid, Stormer-Verlet, and Cowell-Numerov. We show that all
3093     are members, or equivalent to members, of a one-parameter family
3094     of schemes. Some methods have more than one common form, and we
3095     discuss a systematic enumeration of these forms. We also present
3096     a stability and accuracy analysis based on the idea of ''modified
3097     equations'' and a proof of symplecticness. It follows that Cowell-Numerov
3098     and ''LIM2'' (a method proposed by Zhang and Schlick) are symplectic.
3099     A different interpretation of the values used by these integrators
3100     leads to higher accuracy and better energy conservation. Hence,
3101     we suggest that the straightforward analysis of energy conservation
3102     is misleading.},
3103 tim 2786 annote = {We981 Times Cited:30 Cited References Count:35},
3104     issn = {1064-8275},
3105     uri = {<Go to ISI>://A1997WE98100012},
3106 tim 2685 }
3107    
3108 tim 2786 @ARTICLE{Tao2005,
3109     author = {Y. G. Tao and W. K. {den Otter} and J. T. Padding and J. K. G. Dhont
3110 tim 2807 and W. J. Briels},
3111 tim 2786 title = {Brownian dynamics simulations of the self- and collective rotational
3112 tim 2807 diffusion coefficients of rigid long thin rods},
3113 tim 2786 journal = {Journal of Chemical Physics},
3114     year = {2005},
3115     volume = {122},
3116     pages = {-},
3117     number = {24},
3118     month = {Jun 22},
3119     abstract = {Recently a microscopic theory for the dynamics of suspensions of long
3120 tim 2807 thin rigid rods was presented, confirming and expanding the well-known
3121     theory by Doi and Edwards [The Theory of Polymer Dynamics (Clarendon,
3122     Oxford, 1986)] and Kuzuu [J. Phys. Soc. Jpn. 52, 3486 (1983)]. Here
3123     this theory is put to the test by comparing it against computer
3124     simulations. A Brownian dynamics simulation program was developed
3125     to follow the dynamics of the rods, with a length over a diameter
3126     ratio of 60, on the Smoluchowski time scale. The model accounts
3127     for excluded volume interactions between rods, but neglects hydrodynamic
3128     interactions. The self-rotational diffusion coefficients D-r(phi)
3129     of the rods were calculated by standard methods and by a new, more
3130     efficient method based on calculating average restoring torques.
3131     Collective decay of orientational order was calculated by means
3132     of equilibrium and nonequilibrium simulations. Our results show
3133     that, for the currently accessible volume fractions, the decay times
3134     in both cases are virtually identical. Moreover, the observed decay
3135     of diffusion coefficients with volume fraction is much quicker than
3136     predicted by the theory, which is attributed to an oversimplification
3137     of dynamic correlations in the theory. (c) 2005 American Institute
3138     of Physics.},
3139 tim 2786 annote = {943DN Times Cited:3 Cited References Count:26},
3140     issn = {0021-9606},
3141     uri = {<Go to ISI>://000230332400077},
3142 tim 2685 }
3143    
3144 tim 2840 @BOOK{Tolman1979,
3145     title = {The Principles of Statistical Mechanics},
3146     publisher = {Dover Publications, Inc.},
3147     year = {1979},
3148     author = {R.~C. Tolman},
3149     address = {New York},
3150     chapter = {2},
3151     pages = {19-22},
3152     }
3153    
3154 tim 2786 @ARTICLE{Tu1995,
3155     author = {K. Tu and D. J. Tobias and M. L. Klein},
3156     title = {Constant pressure and temperature molecular dynamics simulation of
3157 tim 2807 a fully hydrated liquid crystal phase dipalmitoylphosphatidylcholine
3158     bilayer},
3159 tim 2786 journal = {Biophysical Journal},
3160     year = {1995},
3161     volume = {69},
3162     pages = {2558-2562},
3163     number = {6},
3164     month = {Dec},
3165     abstract = {We report a constant pressure and temperature molecular dynamics simulation
3166 tim 2807 of a fully hydrated liquid crystal (L(alpha) phase bilayer of dipalmitoylphosphatidylcholine
3167     at 50 degrees C and 28 water molecules/lipid. We have shown that
3168     the bilayer is stable throughout the 1550-ps simulation and have
3169     demonstrated convergence of the system dimensions. Several important
3170     aspects of the bilayer structure have been investigated and compared
3171     favorably with experimental results. For example, the average positions
3172     of specific carbon atoms along the bilayer normal agree well with
3173     neutron diffraction data, and the electron density profile is in
3174     accord with x-ray diffraction results. The hydrocarbon chain deuterium
3175     order parameters agree reasonably well with NMR results for the
3176     middles of the chains, but the simulation predicts too much order
3177     at the chain ends. In spite of the deviations in the order parameters,
3178     the hydrocarbon chain packing density appears to be essentially
3179     correct, inasmuch as the area/lipid and bilayer thickness are in
3180     agreement with the most refined experimental estimates. The deuterium
3181     order parameters for the glycerol and choline groups, as well as
3182     the phosphorus chemical shift anisotropy, are in qualitative agreement
3183     with those extracted from NMR measurements.},
3184 tim 2786 annote = {Tv018 Times Cited:108 Cited References Count:34},
3185     issn = {0006-3495},
3186     uri = {<Go to ISI>://A1995TV01800037},
3187 tim 2685 }
3188    
3189 tim 2786 @ARTICLE{Tuckerman1992,
3190     author = {M. Tuckerman and B. J. Berne and G. J. Martyna},
3191     title = {Reversible Multiple Time Scale Molecular-Dynamics},
3192     journal = {Journal of Chemical Physics},
3193     year = {1992},
3194     volume = {97},
3195     pages = {1990-2001},
3196     number = {3},
3197     month = {Aug 1},
3198     abstract = {The Trotter factorization of the Liouville propagator is used to generate
3199 tim 2807 new reversible molecular dynamics integrators. This strategy is
3200     applied to derive reversible reference system propagator algorithms
3201     (RESPA) that greatly accelerate simulations of systems with a separation
3202     of time scales or with long range forces. The new algorithms have
3203     all of the advantages of previous RESPA integrators but are reversible,
3204     and more stable than those methods. These methods are applied to
3205     a set of paradigmatic systems and are shown to be superior to earlier
3206     methods. It is shown how the new RESPA methods are related to predictor-corrector
3207     integrators. Finally, we show how these methods can be used to accelerate
3208     the integration of the equations of motion of systems with Nose
3209     thermostats.},
3210 tim 2786 annote = {Je891 Times Cited:680 Cited References Count:19},
3211     issn = {0021-9606},
3212     uri = {<Go to ISI>://A1992JE89100044},
3213 tim 2685 }
3214    
3215 tim 2840 @BOOK{Varadarajan1974,
3216     title = {Lie groups, Lie algebras, and their representations},
3217     publisher = {Prentice-Hall},
3218     year = {1974},
3219     author = {V.S. Varadarajan},
3220     address = {New York},
3221     }
3222    
3223 tim 2841 @ARTICLE{Vincent1995,
3224     author = {J. J. Vincent and K. M. Merz},
3225     title = {A Highly Portable Parallel Implementation of Amber4 Using the Message-Passing
3226     Interface Standard},
3227     journal = {Journal of Computational Chemistry},
3228     year = {1995},
3229     volume = {16},
3230     pages = {1420-1427},
3231     number = {11},
3232     month = {Nov},
3233     abstract = {We have implemented a portable parallel version of the macromolecular
3234     modeling package AMBER4. The message passing paradigm was used.
3235     All message passing constructs are compliant with the Message Passing
3236     Interface (MPI) standard. The molecular dynamics/minimization module
3237     MINMD and the free-energy perturbation module Gibbs have been implemented
3238     in parallel on a number of machines, including a Gray T3D, an IBM
3239     SP1/SP2, and a collection of networked workstations. In addition,
3240     the code has been tested with an MPI implementation from Argonne
3241     National Laboratories/Mississippi State University which runs on
3242     many parallel machines. The goal of this work is to decrease the
3243     amount of time required to perform molecular dynamics simulations.
3244     Performance results for a Lipid bilayer molecular dynamics simulation
3245     on a Gray T3D, an IBM SP1/SPZ and a Gray C90 are compared. (C) 1995
3246     by John Wiley & Sons, Inc.},
3247     annote = {Ta403 Times Cited:16 Cited References Count:23},
3248     issn = {0192-8651},
3249     uri = {<Go to ISI>://A1995TA40300009},
3250     }
3251    
3252 tim 2840 @ARTICLE{Wegener1979,
3253     author = {W.~A. Wegener, V.~J. Koester and R.~M. Dowben},
3254     title = {A general ellipsoid can not always serve as a modle for the rotational
3255     diffusion properties of arbitrary shaped rigid molecules},
3256     journal = {Proc. Natl. Acad. Sci.},
3257     year = {1979},
3258     volume = {76},
3259     pages = {6356-6360},
3260     number = {12},
3261     }
3262    
3263     @ARTICLE{Wilson2006,
3264     author = {G.~V. Wilson },
3265     title = {Where's the Real Bottleneck in Scientific Computing?},
3266     journal = {American Scientist},
3267     year = {2006},
3268     volume = {94},
3269     }
3270    
3271 tim 2786 @ARTICLE{Withers2003,
3272     author = {I. M. Withers},
3273     title = {Effects of longitudinal quadrupoles on the phase behavior of a Gay-Berne
3274 tim 2807 fluid},
3275 tim 2786 journal = {Journal of Chemical Physics},
3276     year = {2003},
3277     volume = {119},
3278     pages = {10209-10223},
3279     number = {19},
3280     month = {Nov 15},
3281     abstract = {The effects of longitudinal quadrupole moments on the formation of
3282 tim 2807 liquid crystalline phases are studied by means of constant NPT Monte
3283     Carlo simulation methods. The popular Gay-Berne model mesogen is
3284     used as the reference fluid, which displays the phase sequences
3285     isotropic-smectic A-smectic B and isotropic-smectic B at high (T*=2.0)
3286     and low (T*=1.5) temperatures, respectively. With increasing quadrupole
3287     magnitude the smectic phases are observed to be stabilized with
3288     respect to the isotropic liquid, while the smectic B is destabilized
3289     with respect to the smectic A. At the lower temperature, a sufficiently
3290     large quadrupole magnitude results in the injection of the smectic
3291     A phase into the phase sequence and the replacement of the smectic
3292     B phase by the tilted smectic J phase. The nematic phase is also
3293     injected into the phase sequence at both temperatures considered,
3294     and ultimately for sufficiently large quadrupole magnitudes no coherent
3295     layered structures were observed. The stabilization of the smectic
3296     A phase supports the commonly held belief that, while the inclusion
3297     of polar groups is not a prerequisite for the formation of the smectic
3298     A phase, quadrupolar interactions help to increase the temperature
3299     and pressure range for which the smectic A phase is observed. The
3300     quality of the layered structure is worsened with increasing quadrupole
3301     magnitude. This behavior, along with the injection of the nematic
3302     phase into the phase sequence, indicate that the general tendency
3303     of the quadrupolar interactions is to destabilize the layered structure.
3304     A pressure dependence upon the smectic layer spacing is observed.
3305     This behavior is in much closer agreement with experimental findings
3306     than has been observed previously for nonpolar Gay-Berne and hard
3307     spherocylinder models. (C) 2003 American Institute of Physics.},
3308 tim 2786 annote = {738EF Times Cited:3 Cited References Count:43},
3309     issn = {0021-9606},
3310     uri = {<Go to ISI>://000186273200027},
3311 tim 2685 }
3312    
3313 tim 2789 @ARTICLE{Wolf1999,
3314     author = {D. Wolf and P. Keblinski and S. R. Phillpot and J. Eggebrecht},
3315     title = {Exact method for the simulation of Coulombic systems by spherically
3316 tim 2807 truncated, pairwise r(-1) summation},
3317 tim 2789 journal = {Journal of Chemical Physics},
3318     year = {1999},
3319     volume = {110},
3320     pages = {8254-8282},
3321     number = {17},
3322     month = {May 1},
3323     abstract = {Based on a recent result showing that the net Coulomb potential in
3324 tim 2807 condensed ionic systems is rather short ranged, an exact and physically
3325     transparent method permitting the evaluation of the Coulomb potential
3326     by direct summation over the r(-1) Coulomb pair potential is presented.
3327     The key observation is that the problems encountered in determining
3328     the Coulomb energy by pairwise, spherically truncated r(-1) summation
3329     are a direct consequence of the fact that the system summed over
3330     is practically never neutral. A simple method is developed that
3331     achieves charge neutralization wherever the r(-1) pair potential
3332     is truncated. This enables the extraction of the Coulomb energy,
3333     forces, and stresses from a spherically truncated, usually charged
3334     environment in a manner that is independent of the grouping of the
3335     pair terms. The close connection of our approach with the Ewald
3336     method is demonstrated and exploited, providing an efficient method
3337     for the simulation of even highly disordered ionic systems by direct,
3338     pairwise r(-1) summation with spherical truncation at rather short
3339     range, i.e., a method which fully exploits the short-ranged nature
3340     of the interactions in ionic systems. The method is validated by
3341     simulations of crystals, liquids, and interfacial systems, such
3342     as free surfaces and grain boundaries. (C) 1999 American Institute
3343     of Physics. [S0021-9606(99)51517-1].},
3344 tim 2789 annote = {189PD Times Cited:70 Cited References Count:34},
3345     issn = {0021-9606},
3346     uri = {<Go to ISI>://000079913000008},
3347     }
3348    
3349     @ARTICLE{Yoshida1990,
3350     author = {H. Yoshida},
3351     title = {Construction of Higher-Order Symplectic Integrators},
3352     journal = {Physics Letters A},
3353     year = {1990},
3354     volume = {150},
3355     pages = {262-268},
3356     number = {5-7},
3357     month = {Nov 12},
3358     annote = {Ej798 Times Cited:492 Cited References Count:9},
3359     issn = {0375-9601},
3360     uri = {<Go to ISI>://A1990EJ79800009},
3361     }
3362 tim 2801