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new draft of the Langevin paper

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2 Encoding: GBK
3
4 @ARTICLE{Torre2003,
5 author = {J. G. {de la Torre} and H. E. Sanchez and A. Ortega and J. G. Hernandez
6 and M. X. Fernandes and F. G. Diaz and M. C. L. Martinez},
7 title = {Calculation of the solution properties of flexible macromolecules:
8 methods and applications},
9 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 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 annote = {724XK Times Cited:6 Cited References Count:64},
38 issn = {0175-7571},
39 uri = {<Go to ISI>://000185513400011},
40 }
41
42 @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 by time series analysis. II. Investigation of explicit solvent effects},
46 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 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 annote = {973OH Times Cited:1 Cited References Count:33},
87 issn = {0021-9606},
88 uri = {<Go to ISI>://000232532000064},
89 }
90
91 @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 @ARTICLE{Allison1991,
108 author = {S. A. Allison},
109 title = {A Brownian Dynamics Algorithm for Arbitrary Rigid Bodies - Application
110 to Polarized Dynamic Light-Scattering},
111 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 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 annote = {Eu814 Times Cited:8 Cited References Count:32},
132 issn = {0024-9297},
133 uri = {<Go to ISI>://A1991EU81400029},
134 }
135
136 @ARTICLE{Andersen1983,
137 author = {H. C. Andersen},
138 title = {Rattle - a Velocity Version of the Shake Algorithm for Molecular-Dynamics
139 Calculations},
140 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 @ARTICLE{Auerbach2005,
151 author = {A. Auerbach},
152 title = {Gating of acetylcholine receptor channels: Brownian motion across
153 a broad transition state},
154 journal = {Proceedings of the National Academy of Sciences of the United States
155 of America},
156 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 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 annote = {895QF Times Cited:9 Cited References Count:33},
181 issn = {0027-8424},
182 uri = {<Go to ISI>://000226877300030},
183 }
184
185 @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 Using H-2 Nmr and H-1-H-1 Noe Spectroscopy},
189 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 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 annote = {Qz716 Times Cited:38 Cited References Count:37},
217 issn = {0006-2960},
218 uri = {<Go to ISI>://A1995QZ71600035},
219 }
220
221 @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 and numerical aspects},
225 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 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 annote = {816YY Times Cited:8 Cited References Count:35},
246 issn = {0021-9606},
247 uri = {<Go to ISI>://000221146400009},
248 }
249
250 @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 @ARTICLE{Barth1998,
260 author = {E. Barth and T. Schlick},
261 title = {Overcoming stability limitations in biomolecular dynamics. I. Combining
262 force splitting via extrapolation with Langevin dynamics in LN},
263 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 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 annote = {105HH Times Cited:29 Cited References Count:49},
296 issn = {0021-9606},
297 uri = {<Go to ISI>://000075066300006},
298 }
299
300 @ARTICLE{Batcho2001,
301 author = {P. F. Batcho and T. Schlick},
302 title = {Special stability advantages of position-Verlet over velocity-Verlet
303 in multiple-time step integration},
304 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 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 annote = {469KV Times Cited:6 Cited References Count:30},
322 issn = {0021-9606},
323 uri = {<Go to ISI>://000170813800005},
324 }
325
326 @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 study},
330 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 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 annote = {Part 1 988LQ Times Cited:0 Cited References Count:38},
355 issn = {1539-3755},
356 uri = {<Go to ISI>://000233603100030},
357 }
358
359 @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 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 annote = {736UA Times Cited:0 Cited References Count:11},
378 issn = {0006-3495},
379 uri = {<Go to ISI>://000186190500018},
380 }
381
382 @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 motions on NMR spin relaxation: Consideration using green function
386 of rigid body diffusion},
387 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 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 annote = {Zu605 Times Cited:2 Cited References Count:6},
403 issn = {1090-7807},
404 uri = {<Go to ISI>://000074214800017},
405 }
406
407 @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 origin},
411 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 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 annote = {Vn637 Times Cited:49 Cited References Count:26},
427 issn = {0009-2614},
428 uri = {<Go to ISI>://A1996VN63700023},
429 }
430
431 @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 nanoelement: Numerical simulation study},
435 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 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 annote = {969IT Times Cited:2 Cited References Count:55},
459 issn = {1098-0121},
460 uri = {<Go to ISI>://000232228500058},
461 }
462
463 @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 @ARTICLE{Berkov2002,
493 author = {D. V. Berkov and N. L. Gorn and P. Gornert},
494 title = {Magnetization dynamics in nanoparticle systems: Numerical simulation
495 using Langevin dynamics},
496 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 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 annote = {526TF Times Cited:4 Cited References Count:37},
517 issn = {0031-8965},
518 uri = {<Go to ISI>://000174145200026},
519 }
520
521 @ARTICLE{Bernal1980,
522 author = {J.M. Bernal and J. G. {de la Torre}},
523 title = {Transport Properties and Hydrodynamic Centers of Rigid Macromolecules
524 with Arbitrary Shape},
525 journal = {Biopolymers},
526 year = {1980},
527 volume = {19},
528 pages = {751-766},
529 }
530
531 @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 @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 @ARTICLE{Brunger1984,
557 author = {A. Brunger and C. L. Brooks and M. Karplus},
558 title = {Stochastic Boundary-Conditions for Molecular-Dynamics Simulations
559 of St2 Water},
560 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 }
569
570 @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 moving mesh methods},
574 journal = {Philosophical Transactions of the Royal Society of London Series
575 a-Mathematical Physical and Engineering Sciences},
576 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 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 annote = {199EE Times Cited:4 Cited References Count:14},
588 issn = {1364-503X},
589 uri = {<Go to ISI>://000080466800005},
590 }
591
592 @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 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 annote = {255TC Times Cited:24 Cited References Count:38},
632 issn = {0021-9606},
633 uri = {<Go to ISI>://000083685400056},
634 }
635
636 @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 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 annote = {989TU Times Cited:2 Cited References Count:258},
653 issn = {0034-4885},
654 uri = {<Go to ISI>://000233697600004},
655 }
656
657 @ARTICLE{Carrasco1999,
658 author = {B. Carrasco and J. G. {de la Torre}},
659 title = {Hydrodynamic properties of rigid particles: Comparison of different
660 modeling and computational procedures},
661 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 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 annote = {200TT Times Cited:46 Cited References Count:57},
686 issn = {0006-3495},
687 uri = {<Go to ISI>://000080556700016},
688 }
689
690 @ARTICLE{Chandra1999,
691 author = {A. Chandra and T. Ichiye},
692 title = {Dynamical properties of the soft sticky dipole model of water: Molecular
693 dynamics simulations},
694 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 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 annote = {221EN Times Cited:14 Cited References Count:66},
719 issn = {0021-9606},
720 uri = {<Go to ISI>://000081711200038},
721 }
722
723 @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 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 annote = {633ZD Times Cited:0 Cited References Count:9},
756 issn = {0168-9274},
757 uri = {<Go to ISI>://000180314200002},
758 }
759
760 @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 by atomistic simulation},
764 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 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 annote = {866UM Times Cited:4 Cited References Count:61},
783 issn = {0021-9606},
784 uri = {<Go to ISI>://000224798900053},
785 }
786
787 @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 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 annote = {547KF Times Cited:8 Cited References Count:31},
807 issn = {0009-2614},
808 uri = {<Go to ISI>://000175331000020},
809 }
810
811 @ARTICLE{Chin2004,
812 author = {S. A. Chin},
813 title = {Dynamical multiple-time stepping methods for overcoming resonance
814 instabilities},
815 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 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 annote = {757TK Times Cited:1 Cited References Count:22},
837 issn = {0021-9606},
838 uri = {<Go to ISI>://000187577400003},
839 }
840
841 @ARTICLE{Cook2000,
842 author = {M. J. Cook and M. R. Wilson},
843 title = {Simulation studies of dipole correlation in the isotropic liquid
844 phase},
845 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 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 annote = {376BF Times Cited:10 Cited References Count:16},
868 issn = {0267-8292},
869 uri = {<Go to ISI>://000165437800002},
870 }
871
872 @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 E6ap},
876 journal = {Proceedings of the National Academy of Sciences of the United States
877 of America},
878 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 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 annote = {689LC Times Cited:3 Cited References Count:48},
901 issn = {0027-8424},
902 uri = {<Go to ISI>://000183493500037},
903 }
904
905 @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 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 annote = {642XH Times Cited:11 Cited References Count:31},
925 issn = {1098-0121},
926 uri = {<Go to ISI>://000180830400056},
927 }
928
929 @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 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 annote = {Zl046 Times Cited:30 Cited References Count:29},
963 issn = {0006-3495},
964 uri = {<Go to ISI>://000073393400009},
965 }
966
967 @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 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 annote = {Ya587 Times Cited:35 Cited References Count:32},
996 issn = {0021-9606},
997 uri = {<Go to ISI>://A1997YA58700024},
998 }
999
1000 @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 @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 dynamics simulations},
1013 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 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 annote = {992EC Times Cited:0 Cited References Count:13},
1030 issn = {0024-9297},
1031 uri = {<Go to ISI>://000233866200035},
1032 }
1033
1034 @ARTICLE{Egberts1988,
1035 author = {E. Egberts and H. J. C. Berendsen},
1036 title = {Molecular-Dynamics Simulation of a Smectic Liquid-Crystal with Atomic
1037 Detail},
1038 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 }
1048
1049 @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 }
1061
1062 @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 @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 and related single-point water models},
1079 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 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 annote = {816YY Times Cited:5 Cited References Count:39},
1109 issn = {0021-9606},
1110 uri = {<Go to ISI>://000221146400032},
1111 }
1112
1113 @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 in external fields},
1117 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 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 annote = {633AD Times Cited:2 Cited References Count:43},
1135 issn = {0006-3495},
1136 uri = {<Go to ISI>://000180256300012},
1137 }
1138
1139 @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 @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 Potential},
1151 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 }
1160
1161 @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 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 annote = {257MM Times Cited:2 Cited References Count:82},
1189 issn = {1022-1344},
1190 uri = {<Go to ISI>://000083785700002},
1191 }
1192
1193 @ARTICLE{Goetz1998,
1194 author = {R. Goetz and R. Lipowsky},
1195 title = {Computer simulations of bilayer membranes: Self-assembly and interfacial
1196 tension},
1197 journal = {Journal of Chemical Physics},
1198 year = {1998},
1199 volume = {108},
1200 pages = {7397},
1201 number = {17},
1202 }
1203
1204 @BOOK{Goldstein2001,
1205 title = {Classical Mechanics},
1206 publisher = {Addison Wesley},
1207 year = {2001},
1208 author = {H. Goldstein and C. Poole and J. Safko},
1209 address = {San Francisco},
1210 edition = {3rd},
1211 }
1212
1213 @ARTICLE{Gray2003,
1214 author = {J. J. Gray and S. Moughon and C. Wang and O. Schueler-Furman and
1215 B. Kuhlman and C. A. Rohl and D. Baker},
1216 title = {Protein-protein docking with simultaneous optimization of rigid-body
1217 displacement and side-chain conformations},
1218 journal = {Journal of Molecular Biology},
1219 year = {2003},
1220 volume = {331},
1221 pages = {281-299},
1222 number = {1},
1223 month = {Aug 1},
1224 abstract = {Protein-protein docking algorithms provide a means to elucidate structural
1225 details for presently unknown complexes. Here, we present and evaluate
1226 a new method to predict protein-protein complexes from the coordinates
1227 of the unbound monomer components. The method employs a low-resolution,
1228 rigid-body, Monte Carlo search followed by simultaneous optimization
1229 of backbone displacement and side-chain conformations using Monte
1230 Carlo minimization. Up to 10(5) independent simulations are carried
1231 out, and the resulting #decoys# are ranked using an energy function
1232 dominated by van der Waals interactions, an implicit solvation model,
1233 and an orientation-dependent hydrogen bonding potential. Top-ranking
1234 decoys are clustered to select the final predictions. Small-perturbation
1235 studies reveal the formation of binding funnels in 42 of 54 cases
1236 using coordinates derived from the bound complexes and in 32 of
1237 54 cases using independently determined coordinates of one or both
1238 monomers. Experimental binding affinities correlate with the calculated
1239 score function and explain the predictive success or failure of
1240 many targets. Global searches using one or both unbound components
1241 predict at least 25% of the native residue-residue contacts in 28
1242 of the 32 cases where binding funnels exist. The results suggest
1243 that the method may soon be useful for generating models of biologically
1244 important complexes from the structures of the isolated components,
1245 but they also highlight the challenges that must be met to achieve
1246 consistent and accurate prediction of protein-protein interactions.
1247 (C) 2003 Elsevier Ltd. All rights reserved.},
1248 annote = {704QL Times Cited:48 Cited References Count:60},
1249 issn = {0022-2836},
1250 uri = {<Go to ISI>://000184351300022},
1251 }
1252
1253 @ARTICLE{Greengard1994,
1254 author = {L. Greengard},
1255 title = {Fast Algorithms for Classical Physics},
1256 journal = {Science},
1257 year = {1994},
1258 volume = {265},
1259 pages = {909-914},
1260 number = {5174},
1261 month = {Aug 12},
1262 abstract = {Some of the recently developed fast summation methods that have arisen
1263 in scientific computing are described. These methods require an
1264 amount of work proportional to N or N log N to evaluate all pairwise
1265 interactions in an ensemble of N particles. Traditional methods,
1266 by contrast, require an amount of work proportional to N-2. AS a
1267 result, large-scale simulations can be carried out using only modest
1268 computer resources. In combination with supercomputers, it is possible
1269 to address questions that were previously out of reach. Problems
1270 from diffusion, gravitation, and wave propagation are considered.},
1271 annote = {Pb499 Times Cited:99 Cited References Count:44},
1272 issn = {0036-8075},
1273 uri = {<Go to ISI>://A1994PB49900031},
1274 }
1275
1276 @ARTICLE{Greengard1987,
1277 author = {L. Greengard and V. Rokhlin},
1278 title = {A Fast Algorithm for Particle Simulations},
1279 journal = {Journal of Computational Physics},
1280 year = {1987},
1281 volume = {73},
1282 pages = {325-348},
1283 number = {2},
1284 month = {Dec},
1285 annote = {L0498 Times Cited:899 Cited References Count:7},
1286 issn = {0021-9991},
1287 uri = {<Go to ISI>://A1987L049800006},
1288 }
1289
1290 @ARTICLE{Hairer1997,
1291 author = {E. Hairer and C. Lubich},
1292 title = {The life-span of backward error analysis for numerical integrators},
1293 journal = {Numerische Mathematik},
1294 year = {1997},
1295 volume = {76},
1296 pages = {441-462},
1297 number = {4},
1298 month = {Jun},
1299 abstract = {Backward error analysis is a useful tool for the study of numerical
1300 approximations to ordinary differential equations. The numerical
1301 solution is formally interpreted as the exact solution of a perturbed
1302 differential equation, given as a formal and usually divergent series
1303 in powers of the step size. For a rigorous analysis, this series
1304 has to be truncated. In this article we study the influence of this
1305 truncation to the difference between the numerical solution and
1306 the exact solution of the perturbed differential equation. Results
1307 on the long-time behaviour of numerical solutions are obtained in
1308 this way. We present applications to the numerical phase portrait
1309 near hyperbolic equilibrium points, to asymptotically stable periodic
1310 orbits and Hopf bifurcation, and to energy conservation and approximation
1311 of invariant tori in Hamiltonian systems.},
1312 annote = {Xj488 Times Cited:50 Cited References Count:19},
1313 issn = {0029-599X},
1314 uri = {<Go to ISI>://A1997XJ48800002},
1315 }
1316
1317 @ARTICLE{Hao1993,
1318 author = {M. H. Hao and M. R. Pincus and S. Rackovsky and H. A. Scheraga},
1319 title = {Unfolding and Refolding of the Native Structure of Bovine Pancreatic
1320 Trypsin-Inhibitor Studied by Computer-Simulations},
1321 journal = {Biochemistry},
1322 year = {1993},
1323 volume = {32},
1324 pages = {9614-9631},
1325 number = {37},
1326 month = {Sep 21},
1327 abstract = {A new procedure for studying the folding and unfolding of proteins,
1328 with an application to bovine pancreatic trypsin inhibitor (BPTI),
1329 is reported. The unfolding and refolding of the native structure
1330 of the protein are characterized by the dimensions of the protein,
1331 expressed in terms of the three principal radii of the structure
1332 considered as an ellipsoid. A dynamic equation, describing the variations
1333 of the principal radii on the unfolding path, and a numerical procedure
1334 to solve this equation are proposed. Expanded and distorted conformations
1335 are refolded to the native structure by a dimensional-constraint
1336 energy minimization procedure. A unique and reproducible unfolding
1337 pathway for an intermediate of BPTI lacking the [30,51] disulfide
1338 bond is obtained. The resulting unfolded conformations are extended;
1339 they contain near-native local structure, but their longest principal
1340 radii are more than 2.5 times greater than that of the native structure.
1341 The most interesting finding is that the majority of expanded conformations,
1342 generated under various conditions, can be refolded closely to the
1343 native structure, as measured by the correct overall chain fold,
1344 by the rms deviations from the native structure of only 1.9-3.1
1345 angstrom, and by the energy differences of about 10 kcal/mol from
1346 the native structure. Introduction of the [30,51] disulfide bond
1347 at this stage, followed by minimization, improves the closeness
1348 of the refolded structures to the native structure, reducing the
1349 rms deviations to 0.9-2.0 angstrom. The unique refolding of these
1350 expanded structures over such a large conformational space implies
1351 that the folding is strongly dictated by the interactions in the
1352 amino acid sequence of BPTI. The simulations indicate that, under
1353 conditions that favor a compact structure as mimicked by the volume
1354 constraints in our algorithm; the expanded conformations have a
1355 strong tendency to move toward the native structure; therefore,
1356 they probably would be favorable folding intermediates. The results
1357 presented here support a general model for protein folding, i.e.,
1358 progressive formation of partially folded structural units, followed
1359 by collapse to the compact native structure. The general applicability
1360 of the procedure is also discussed.},
1361 annote = {Ly294 Times Cited:27 Cited References Count:57},
1362 issn = {0006-2960},
1363 uri = {<Go to ISI>://A1993LY29400014},
1364 }
1365
1366 @ARTICLE{Hinsen2000,
1367 author = {K. Hinsen and A. J. Petrescu and S. Dellerue and M. C. Bellissent-Funel
1368 and G. R. Kneller},
1369 title = {Harmonicity in slow protein dynamics},
1370 journal = {Chemical Physics},
1371 year = {2000},
1372 volume = {261},
1373 pages = {25-37},
1374 number = {1-2},
1375 month = {Nov 1},
1376 abstract = {The slow dynamics of proteins around its native folded state is usually
1377 described by diffusion in a strongly anharmonic potential. In this
1378 paper, we try to understand the form and origin of the anharmonicities,
1379 with the principal aim of gaining a better understanding of the
1380 principal motion types, but also in order to develop more efficient
1381 numerical methods for simulating neutron scattering spectra of large
1382 proteins. First, we decompose a molecular dynamics (MD) trajectory
1383 of 1.5 ns for a C-phycocyanin dimer surrounded by a layer of water
1384 into three contributions that we expect to be independent: the global
1385 motion of the residues, the rigid-body motion of the sidechains
1386 relative to the backbone, and the internal deformations of the sidechains.
1387 We show that they are indeed almost independent by verifying the
1388 factorization of the incoherent intermediate scattering function.
1389 Then, we show that the global residue motions, which include all
1390 large-scale backbone motions, can be reproduced by a simple harmonic
1391 model which contains two contributions: a short-time vibrational
1392 term, described by a standard normal mode calculation in a local
1393 minimum, and a long-time diffusive term, described by Brownian motion
1394 in an effective harmonic potential. The potential and the friction
1395 constants were fitted to the MD data. The major anharmonic contribution
1396 to the incoherent intermediate scattering function comes from the
1397 rigid-body diffusion of the sidechains. This model can be used to
1398 calculate scattering functions for large proteins and for long-time
1399 scales very efficiently, and thus provides a useful complement to
1400 MD simulations, which are best suited for detailed studies on smaller
1401 systems or for shorter time scales. (C) 2000 Elsevier Science B.V.
1402 All rights reserved.},
1403 annote = {Sp. Iss. SI 368MT Times Cited:16 Cited References Count:31},
1404 issn = {0301-0104},
1405 uri = {<Go to ISI>://000090121700003},
1406 }
1407
1408 @ARTICLE{Ho1992,
1409 author = {C. Ho and C. D. Stubbs},
1410 title = {Hydration at the Membrane Protein-Lipid Interface},
1411 journal = {Biophysical Journal},
1412 year = {1992},
1413 volume = {63},
1414 pages = {897-902},
1415 number = {4},
1416 month = {Oct},
1417 abstract = {Evidence has been found for the existence water at the protein-lipid
1418 hydrophobic interface ot the membrane proteins, gramicidin and apocytochrome
1419 C, using two related fluorescence spectroscopic approaches. The
1420 first approach exploited the fact that the presence of water in
1421 the excited state solvent cage of a fluorophore increases the rate
1422 of decay. For 1,6-diphenyl-1,3,5-hexatriene (DPH) and 1-palmitoyl-2-[[2-[4-(6-phenyl-trans-1,3,5-hexatrienyl)
1423 phenyl]ethyl]carbonyl]-3-sn-PC (DPH-PC), where the fluorophores
1424 are located in the hydrophobic core of the lipid bilayer, the introduction
1425 of gramicidin reduced the fluorescence lifetime, indicative of an
1426 increased presence of water in the bilayer. Since a high protein:lipid
1427 ratio was used, the fluorophores were forced to be adjacent to the
1428 protein hydrophobic surface, hence the presence of water in this
1429 region could be inferred. Cholesterol is known to reduce the water
1430 content of lipid bilayers and this effect was maintained at the
1431 protein-lipid interface with both gramicidin and apocytochrome C,
1432 again suggesting hydration in this region. The second approach was
1433 to use the fluorescence enhancement induced by exchanging deuterium
1434 oxide (D2O) for H2O. Both the fluorescence intensities of trimethylammonium-DPH,
1435 located in the lipid head group region, and of the gramicidin intrinsic
1436 tryptophans were greater in a D2O buffer compared with H2O, showing
1437 that the fluorophores were exposed to water in the bilayer at the
1438 protein-lipid interface. In the presence of cholesterol the fluorescence
1439 intensity ratio of D2O to H2O decreased, indicating a removal of
1440 water by the cholesterol, in keeping with the lifetime data. Altered
1441 hydration at the protein-lipid interface could affect conformation,
1442 thereby offering a new route by which membrane protein functioning
1443 may be modified.},
1444 annote = {Ju251 Times Cited:55 Cited References Count:44},
1445 issn = {0006-3495},
1446 uri = {<Go to ISI>://A1992JU25100002},
1447 }
1448
1449 @BOOK{Hockney1981,
1450 title = {Computer Simulation Using Particles},
1451 publisher = {McGraw-Hill},
1452 year = {1981},
1453 author = {R.W. Hockney and J.W. Eastwood},
1454 address = {New York},
1455 }
1456
1457 @ARTICLE{Hoover1985,
1458 author = {W. G. Hoover},
1459 title = {Canonical Dynamics - Equilibrium Phase-Space Distributions},
1460 journal = {Physical Review A},
1461 year = {1985},
1462 volume = {31},
1463 pages = {1695-1697},
1464 number = {3},
1465 annote = {Acr30 Times Cited:1809 Cited References Count:11},
1466 issn = {1050-2947},
1467 uri = {<Go to ISI>://A1985ACR3000056},
1468 }
1469
1470 @ARTICLE{Huh2004,
1471 author = {Y. Huh and N. M. Cann},
1472 title = {Discrimination in isotropic, nematic, and smectic phases of chiral
1473 calamitic molecules: A computer simulation study},
1474 journal = {Journal of Chemical Physics},
1475 year = {2004},
1476 volume = {121},
1477 pages = {10299-10308},
1478 number = {20},
1479 month = {Nov 22},
1480 abstract = {Racemic fluids of chiral calamitic molecules are investigated with
1481 molecular dynamics simulations. In particular, the phase behavior
1482 as a function of density is examined for eight racemates. The relationship
1483 between chiral discrimination and orientational order in the phase
1484 is explored. We find that the transition from the isotropic phase
1485 to a liquid crystal phase is accompanied by an increase in chiral
1486 discrimination, as measured by differences in radial distributions.
1487 Among ordered phases, discrimination is largest for smectic phases
1488 with a significant preference for heterochiral contact within the
1489 layers. (C) 2004 American Institute of Physics.},
1490 annote = {870FJ Times Cited:0 Cited References Count:63},
1491 issn = {0021-9606},
1492 uri = {<Go to ISI>://000225042700059},
1493 }
1494
1495 @ARTICLE{Humphrey1996,
1496 author = {W. Humphrey and A. Dalke and K. Schulten},
1497 title = {VMD: Visual molecular dynamics},
1498 journal = {Journal of Molecular Graphics},
1499 year = {1996},
1500 volume = {14},
1501 pages = {33-\&},
1502 number = {1},
1503 month = {Feb},
1504 abstract = {VMD is a molecular graphics program designed for the display and analysis
1505 of molecular assemblies, in particular biopolymers such as proteins
1506 and nucleic acids. VMD can simultaneously display any number of
1507 structures using a wide variety of rendering styles and coloring
1508 methods. Molecules are displayed as one or more ''representations,''
1509 in which each representation embodies a particular rendering method
1510 and coloring scheme for a selected subset of atoms. The atoms displayed
1511 in each representation are chosen using an extensive atom selection
1512 syntax, which includes Boolean operators and regular expressions.
1513 VMD provides a complete graphical user interface for program control,
1514 as well as a text interface using the Tcl embeddable parser to allow
1515 for complex scripts with variable substitution, control loops, and
1516 function calls. Full session logging is supported, which produces
1517 a VMD command script for later playback. High-resolution raster
1518 images of displayed molecules may be produced by generating input
1519 scripts for use by a number of photorealistic image-rendering applications.
1520 VMD has also been expressly designed with the ability to animate
1521 molecular dynamics (MD) simulation trajectories, imported either
1522 from files or from a direct connection to a running MD simulation.
1523 VMD is the visualization component of MDScope, a set of tools for
1524 interactive problem solving in structural biology, which also includes
1525 the parallel MD program NAMD, and the MDCOMM software used to connect
1526 the visualization and simulation programs. VMD is written in C++,
1527 using an object-oriented design; the program, including source code
1528 and extensive documentation, is freely available via anonymous ftp
1529 and through the World Wide Web.},
1530 annote = {Uh515 Times Cited:1418 Cited References Count:19},
1531 issn = {0263-7855},
1532 uri = {<Go to ISI>://A1996UH51500005},
1533 }
1534
1535 @ARTICLE{Izaguirre2001,
1536 author = {J. A. Izaguirre and D. P. Catarello and J. M. Wozniak and R. D. Skeel},
1537 title = {Langevin stabilization of molecular dynamics},
1538 journal = {Journal of Chemical Physics},
1539 year = {2001},
1540 volume = {114},
1541 pages = {2090-2098},
1542 number = {5},
1543 month = {Feb 1},
1544 abstract = {In this paper we show the possibility of using very mild stochastic
1545 damping to stabilize long time step integrators for Newtonian molecular
1546 dynamics. More specifically, stable and accurate integrations are
1547 obtained for damping coefficients that are only a few percent of
1548 the natural decay rate of processes of interest, such as the velocity
1549 autocorrelation function. Two new multiple time stepping integrators,
1550 Langevin Molly (LM) and Brunger-Brooks-Karplus-Molly (BBK-M), are
1551 introduced in this paper. Both use the mollified impulse method
1552 for the Newtonian term. LM uses a discretization of the Langevin
1553 equation that is exact for the constant force, and BBK-M uses the
1554 popular Brunger-Brooks-Karplus integrator (BBK). These integrators,
1555 along with an extrapolative method called LN, are evaluated across
1556 a wide range of damping coefficient values. When large damping coefficients
1557 are used, as one would for the implicit modeling of solvent molecules,
1558 the method LN is superior, with LM closely following. However, with
1559 mild damping of 0.2 ps(-1), LM produces the best results, allowing
1560 long time steps of 14 fs in simulations containing explicitly modeled
1561 flexible water. With BBK-M and the same damping coefficient, time
1562 steps of 12 fs are possible for the same system. Similar results
1563 are obtained for a solvated protein-DNA simulation of estrogen receptor
1564 ER with estrogen response element ERE. A parallel version of BBK-M
1565 runs nearly three times faster than the Verlet-I/r-RESPA (reversible
1566 reference system propagator algorithm) when using the largest stable
1567 time step on each one, and it also parallelizes well. The computation
1568 of diffusion coefficients for flexible water and ER/ERE shows that
1569 when mild damping of up to 0.2 ps-1 is used the dynamics are not
1570 significantly distorted. (C) 2001 American Institute of Physics.},
1571 annote = {397CQ Times Cited:14 Cited References Count:36},
1572 issn = {0021-9606},
1573 uri = {<Go to ISI>://000166676100020},
1574 }
1575
1576 @ARTICLE{Torre1977,
1577 author = {Jose Garcia De La Torre, V.A. Bloomfield},
1578 title = {Hydrodynamic properties of macromolecular complexes. I. Translation},
1579 journal = {Biopolymers},
1580 year = {1977},
1581 volume = {16},
1582 pages = {1747-1763},
1583 }
1584
1585 @ARTICLE{Kale1999,
1586 author = {L. Kale and R. Skeel and M. Bhandarkar and R. Brunner and A. Gursoy
1587 and N. Krawetz and J. Phillips and A. Shinozaki and K. Varadarajan
1588 and K. Schulten},
1589 title = {NAMD2: Greater scalability for parallel molecular dynamics},
1590 journal = {Journal of Computational Physics},
1591 year = {1999},
1592 volume = {151},
1593 pages = {283-312},
1594 number = {1},
1595 month = {May 1},
1596 abstract = {Molecular dynamics programs simulate the behavior of biomolecular
1597 systems, leading to understanding of their functions. However, the
1598 computational complexity of such simulations is enormous. Parallel
1599 machines provide the potential to meet this computational challenge.
1600 To harness this potential, it is necessary to develop a scalable
1601 program. It is also necessary that the program be easily modified
1602 by application-domain programmers. The NAMD2 program presented in
1603 this paper seeks to provide these desirable features. It uses spatial
1604 decomposition combined with force decomposition to enhance scalability.
1605 It uses intelligent periodic load balancing, so as to maximally
1606 utilize the available compute power. It is modularly organized,
1607 and implemented using Charm++, a parallel C++ dialect, so as to
1608 enhance its modifiability. It uses a combination of numerical techniques
1609 and algorithms to ensure that energy drifts are minimized, ensuring
1610 accuracy in long running calculations. NAMD2 uses a portable run-time
1611 framework called Converse that also supports interoperability among
1612 multiple parallel paradigms. As a result, different components of
1613 applications can be written in the most appropriate parallel paradigms.
1614 NAMD2 runs on most parallel machines including workstation clusters
1615 and has yielded speedups in excess of 180 on 220 processors. This
1616 paper also describes the performance obtained on some benchmark
1617 applications. (C) 1999 Academic Press.},
1618 annote = {194FM Times Cited:373 Cited References Count:51},
1619 issn = {0021-9991},
1620 uri = {<Go to ISI>://000080181500013},
1621 }
1622
1623 @ARTICLE{Kane2000,
1624 author = {C. Kane and J. E. Marsden and M. Ortiz and M. West},
1625 title = {Variational integrators and the Newmark algorithm for conservative
1626 and dissipative mechanical systems},
1627 journal = {International Journal for Numerical Methods in Engineering},
1628 year = {2000},
1629 volume = {49},
1630 pages = {1295-1325},
1631 number = {10},
1632 month = {Dec 10},
1633 abstract = {The purpose of this work is twofold. First, we demonstrate analytically
1634 that the classical Newmark family as well as related integration
1635 algorithms are variational in the sense of the Veselov formulation
1636 of discrete mechanics. Such variational algorithms are well known
1637 to be symplectic and momentum preserving and to often have excellent
1638 global energy behaviour. This analytical result is verified through
1639 numerical examples and is believed to be one of the primary reasons
1640 that this class of algorithms performs so well. Second, we develop
1641 algorithms for mechanical systems with forcing, and in particular,
1642 for dissipative systems. In this case, we develop integrators that
1643 are based on a discretization of the Lagrange d'Alembert principle
1644 as well as on a variational formulation of dissipation. It is demonstrated
1645 that these types of structured integrators have good numerical behaviour
1646 in terms of obtaining the correct amounts by which the energy changes
1647 over the integration run. Copyright (C) 2000 John Wiley & Sons,
1648 Ltd.},
1649 annote = {373CJ Times Cited:30 Cited References Count:41},
1650 issn = {0029-5981},
1651 uri = {<Go to ISI>://000165270600004},
1652 }
1653
1654 @ARTICLE{Klimov1997,
1655 author = {D. K. Klimov and D. Thirumalai},
1656 title = {Viscosity dependence of the folding rates of proteins},
1657 journal = {Physical Review Letters},
1658 year = {1997},
1659 volume = {79},
1660 pages = {317-320},
1661 number = {2},
1662 month = {Jul 14},
1663 abstract = {The viscosity (eta) dependence of the folding rates for four sequences
1664 (the native state of three sequences is a beta sheet, while the
1665 fourth forms an alpha helix) is calculated for off-lattice models
1666 of proteins. Assuming that the dynamics is given by the Langevin
1667 equation, we show that the folding rates increase linearly at low
1668 viscosities eta, decrease as 1/eta at large eta, and have a maximum
1669 at intermediate values. The Kramers' theory of barrier crossing
1670 provides a quantitative fit of the numerical results. By mapping
1671 the simulation results to real proteins we estimate that for optimized
1672 sequences the time scale for forming a four turn alpha-helix topology
1673 is about 500 ns, whereas for beta sheet it is about 10 mu s.},
1674 annote = {Xk293 Times Cited:77 Cited References Count:17},
1675 issn = {0031-9007},
1676 uri = {<Go to ISI>://A1997XK29300035},
1677 }
1678
1679 @ARTICLE{Kol1997,
1680 author = {A. Kol and B. B. Laird and B. J. Leimkuhler},
1681 title = {A symplectic method for rigid-body molecular simulation},
1682 journal = {Journal of Chemical Physics},
1683 year = {1997},
1684 volume = {107},
1685 pages = {2580-2588},
1686 number = {7},
1687 month = {Aug 15},
1688 abstract = {Rigid-body molecular dynamics simulations typically are performed
1689 in a quaternion representation. The nonseparable form of the Hamiltonian
1690 in quaternions prevents the use of a standard leapfrog (Verlet)
1691 integrator, so nonsymplectic Runge-Kutta, multistep, or extrapolation
1692 methods are generally used, This is unfortunate since symplectic
1693 methods like Verlet exhibit superior energy conservation in long-time
1694 integrations. In this article, we describe an alternative method,
1695 which we call RSHAKE (for rotation-SHAKE), in which the entire rotation
1696 matrix is evolved (using the scheme of McLachlan and Scovel [J.
1697 Nonlin. Sci, 16 233 (1995)]) in tandem with the particle positions.
1698 We employ a fast approximate Newton solver to preserve the orthogonality
1699 of the rotation matrix. We test our method on a system of soft-sphere
1700 dipoles and compare with quaternion evolution using a 4th-order
1701 predictor-corrector integrator, Although the short-time error of
1702 the quaternion algorithm is smaller for fixed time step than that
1703 for RSHAKE, the quaternion scheme exhibits an energy drift which
1704 is not observed in simulations with RSHAKE, hence a fixed energy
1705 tolerance can be achieved by using a larger time step, The superiority
1706 of RSHAKE increases with system size. (C) 1997 American Institute
1707 of Physics.},
1708 annote = {Xq332 Times Cited:11 Cited References Count:18},
1709 issn = {0021-9606},
1710 uri = {<Go to ISI>://A1997XQ33200046},
1711 }
1712
1713 @ARTICLE{Lansac2001,
1714 author = {Y. Lansac and M. A. Glaser and N. A. Clark},
1715 title = {Microscopic structure and dynamics of a partial bilayer smectic liquid
1716 crystal},
1717 journal = {Physical Review E},
1718 year = {2001},
1719 volume = {6405},
1720 pages = {-},
1721 number = {5},
1722 month = {Nov},
1723 abstract = {Cyanobiphenyls (nCB's) represent a useful and intensively studied
1724 class of mesogens. Many of the peculiar properties of nCB's (e.g.,
1725 the occurence of the partial bilayer smectic-A(d) phase) are thought
1726 to be a manifestation of short-range antiparallel association of
1727 neighboring molecules, resulting from strong dipole-dipole interactions
1728 between cyano groups. To test and extend existing models of microscopic
1729 ordering in nCB's, we carry out large-scale atomistic simulation
1730 studies of the microscopic structure and dynamics of the Sm-A(d)
1731 phase of 4-octyl-4'-cyanobiphenyl (8CB). We compute a variety of
1732 thermodynamic, structural, and dynamical properties for this material,
1733 and make a detailed comparison of our results with experimental
1734 measurements in order to validate our molecular model. Semiquantitative
1735 agreement with experiment is found: the smectic layer spacing and
1736 mass density are well reproduced, translational diffusion constants
1737 are similar to experiment, but the orientational ordering of alkyl
1738 chains is overestimated. This simulation provides a detailed picture
1739 of molecular conformation, smectic layer structure, and intermolecular
1740 correlations in Sm-A(d) 8CB, and demonstrates that pronounced short-range
1741 antiparallel association of molecules arising from dipole-dipole
1742 interactions plays a dominant role in determining the molecular-scale
1743 structure of 8CB.},
1744 annote = {Part 1 496QF Times Cited:10 Cited References Count:60},
1745 issn = {1063-651X},
1746 uri = {<Go to ISI>://000172406900063},
1747 }
1748
1749 @ARTICLE{Lansac2003,
1750 author = {Y. Lansac and P. K. Maiti and N. A. Clark and M. A. Glaser},
1751 title = {Phase behavior of bent-core molecules},
1752 journal = {Physical Review E},
1753 year = {2003},
1754 volume = {67},
1755 pages = {-},
1756 number = {1},
1757 month = {Jan},
1758 abstract = {Recently, a new class of smectic liquid crystal phases characterized
1759 by the spontaneous formation of macroscopic chiral domains from
1760 achiral bent-core molecules has been discovered. We have carried
1761 out Monte Carlo simulations of a minimal hard spherocylinder dimer
1762 model to investigate the role of excluded volume interactions in
1763 determining the phase behavior of bent-core materials and to probe
1764 the molecular origins of polar and chiral symmetry breaking. We
1765 present the phase diagram of hard spherocylinder dimers of length-diameter
1766 ratio of 5 as a function of pressure or density and dimer opening
1767 angle psi. With decreasing psi, a transition from a nonpolar to
1768 a polar smectic A phase is observed near psi=167degrees, and the
1769 nematic phase becomes thermodynamically unstable for psi<135degrees.
1770 Free energy calculations indicate that the antipolar smectic A (SmAP(A))
1771 phase is more stable than the polar smectic A phase (SmAP(F)). No
1772 chiral smectic or biaxial nematic phases were found.},
1773 annote = {Part 1 646CM Times Cited:15 Cited References Count:38},
1774 issn = {1063-651X},
1775 uri = {<Go to ISI>://000181017300042},
1776 }
1777
1778 @BOOK{Leach2001,
1779 title = {Molecular Modeling: Principles and Applications},
1780 publisher = {Pearson Educated Limited},
1781 year = {2001},
1782 author = {A. Leach},
1783 address = {Harlow, England},
1784 edition = {2nd},
1785 }
1786
1787 @ARTICLE{Leimkuhler1999,
1788 author = {B. Leimkuhler},
1789 title = {Reversible adaptive regularization: perturbed Kepler motion and classical
1790 atomic trajectories},
1791 journal = {Philosophical Transactions of the Royal Society of London Series
1792 a-Mathematical Physical and Engineering Sciences},
1793 year = {1999},
1794 volume = {357},
1795 pages = {1101-1133},
1796 number = {1754},
1797 month = {Apr 15},
1798 abstract = {Reversible and adaptive integration methods based on Kustaanheimo-Stiefel
1799 regularization and modified Sundman transformations are applied
1800 to simulate general perturbed Kepler motion and to compute classical
1801 trajectories of atomic systems (e.g. Rydberg atoms). The new family
1802 of reversible adaptive regularization methods also conserves angular
1803 momentum and exhibits superior energy conservation and numerical
1804 stability in long-time integrations. The schemes are appropriate
1805 for scattering, for astronomical calculations of escape time and
1806 long-term stability, and for classical and semiclassical studies
1807 of atomic dynamics. The components of an algorithm for trajectory
1808 calculations are described. Numerical experiments illustrate the
1809 effectiveness of the reversible approach.},
1810 annote = {199EE Times Cited:11 Cited References Count:48},
1811 issn = {1364-503X},
1812 uri = {<Go to ISI>://000080466800007},
1813 }
1814
1815 @BOOK{Leimkuhler2004,
1816 title = {Simulating Hamiltonian Dynamics},
1817 publisher = {Cambridge University Press},
1818 year = {2004},
1819 author = {B. Leimkuhler and S. Reich},
1820 address = {Cambridge},
1821 }
1822
1823 @ARTICLE{Levelut1981,
1824 author = {A. M. Levelut and R. J. Tarento and F. Hardouin and M. F. Achard
1825 and G. Sigaud},
1826 title = {Number of Sa Phases},
1827 journal = {Physical Review A},
1828 year = {1981},
1829 volume = {24},
1830 pages = {2180-2186},
1831 number = {4},
1832 annote = {Ml751 Times Cited:96 Cited References Count:16},
1833 issn = {1050-2947},
1834 uri = {<Go to ISI>://A1981ML75100057},
1835 }
1836
1837 @ARTICLE{Lieb1982,
1838 author = {W. R. Lieb and M. Kovalycsik and R. Mendelsohn},
1839 title = {Do Clinical-Levels of General-Anesthetics Affect Lipid Bilayers -
1840 Evidence from Raman-Scattering},
1841 journal = {Biochimica Et Biophysica Acta},
1842 year = {1982},
1843 volume = {688},
1844 pages = {388-398},
1845 number = {2},
1846 annote = {Nu461 Times Cited:40 Cited References Count:28},
1847 issn = {0006-3002},
1848 uri = {<Go to ISI>://A1982NU46100012},
1849 }
1850
1851 @ARTICLE{Link1997,
1852 author = {D. R. Link and G. Natale and R. Shao and J. E. Maclennan and N. A.
1853 Clark and E. Korblova and D. M. Walba},
1854 title = {Spontaneous formation of macroscopic chiral domains in a fluid smectic
1855 phase of achiral molecules},
1856 journal = {Science},
1857 year = {1997},
1858 volume = {278},
1859 pages = {1924-1927},
1860 number = {5345},
1861 month = {Dec 12},
1862 abstract = {A smectic liquid-crystal phase made from achiral molecules with bent
1863 cores was found to have fluid layers that exhibit two spontaneous
1864 symmetry-breaking instabilities: polar molecular orientational ordering
1865 about the layer normal and molecular tilt. These instabilities combine
1866 to form a chiral layer structure with a handedness that depends
1867 on the sign of the tilt. The bulk states are either antiferroelectric-racemic,
1868 with the layer polar direction and handedness alternating in sign
1869 from layer to layer, or antiferroelectric-chiral, which is of uniform
1870 layer handedness. Both states exhibit an electric field-induced
1871 transition from antiferroelectric to ferroelectric.},
1872 annote = {Yl002 Times Cited:407 Cited References Count:25},
1873 issn = {0036-8075},
1874 uri = {<Go to ISI>://A1997YL00200028},
1875 }
1876
1877 @ARTICLE{Liwo2005,
1878 author = {A. Liwo and M. Khalili and H. A. Scheraga},
1879 title = {Ab initio simulations of protein folding pathways by molecular dynamics
1880 with the united-residue (UNRES) model of polypeptide chains},
1881 journal = {Febs Journal},
1882 year = {2005},
1883 volume = {272},
1884 pages = {359-360},
1885 month = {Jul},
1886 annote = {Suppl. 1 005MG Times Cited:0 Cited References Count:0},
1887 issn = {1742-464X},
1888 uri = {<Go to ISI>://000234826102043},
1889 }
1890
1891 @ARTICLE{Luty1994,
1892 author = {B. A. Luty and M. E. Davis and I. G. Tironi and W. F. Vangunsteren},
1893 title = {A Comparison of Particle-Particle, Particle-Mesh and Ewald Methods
1894 for Calculating Electrostatic Interactions in Periodic Molecular-Systems},
1895 journal = {Molecular Simulation},
1896 year = {1994},
1897 volume = {14},
1898 pages = {11-20},
1899 number = {1},
1900 abstract = {We compare the Particle-Particle Particle-Mesh (PPPM) and Ewald methods
1901 for calculating electrostatic interactions in periodic molecular
1902 systems. A brief comparison of the theories shows that the methods
1903 are very similar differing mainly in the technique which is used
1904 to perform the ''k-space'' or mesh calculation. Because the PPPM
1905 utilizes the highly efficient numerical Fast Fourier Transform (FFT)
1906 method it requires significantly less computational effort than
1907 the Ewald method and scale's almost linearly with system size.},
1908 annote = {Qf464 Times Cited:50 Cited References Count:20},
1909 issn = {0892-7022},
1910 uri = {<Go to ISI>://A1994QF46400002},
1911 }
1912
1913 @BOOK{Marion1990,
1914 title = {Classical Dynamics of Particles and Systems},
1915 publisher = {Academic Press},
1916 year = {1990},
1917 author = {J.~B. Marion},
1918 address = {New York},
1919 edition = {2rd},
1920 }
1921
1922 @ARTICLE{Marrink1994,
1923 author = {S. J. Marrink and H. J. C. Berendsen},
1924 title = {Simulation of Water Transport through a Lipid-Membrane},
1925 journal = {Journal of Physical Chemistry},
1926 year = {1994},
1927 volume = {98},
1928 pages = {4155-4168},
1929 number = {15},
1930 month = {Apr 14},
1931 abstract = {To obtain insight in the process of water permeation through a lipid
1932 membrane, we performed molecular dynamics simulations on a phospholipid
1933 (DPPC)/water system with atomic detail. Since the actual process
1934 of permeation is too slow to be studied directly, we deduced the
1935 permeation rate indirectly via computation of the free energy and
1936 diffusion rate profiles of a water molecule across the bilayer.
1937 We conclude that the permeation of water through a lipid membrane
1938 cannot be described adequately by a simple homogeneous solubility-diffusion
1939 model. Both the excess free energy and the diffusion rate strongly
1940 depend on the position in the membrane, as a result from the inhomogeneous
1941 nature of the membrane. The calculated excess free energy profile
1942 has a shallow slope and a maximum height of 26 kJ/mol. The diffusion
1943 rate is highest in the middle of the membrane where the lipid density
1944 is low. In the interfacial region almost all water molecules are
1945 bound by the lipid headgroups, and the diffusion turns out to be
1946 1 order of magnitude smaller. The total transport process is essentially
1947 determined by the free energy barrier. The rate-limiting step is
1948 the permeation through the dense part of the lipid tails, where
1949 the resistance is highest. We found a permeation rate of 7(+/-3)
1950 x 10(-2) cm/s at 350 K, comparable to experimental values for DPPC
1951 membranes, if corrected for the temperature of the simulation. Taking
1952 the inhomogeneity of the membrane into account, we define a new
1953 ''four-region'' model which seems to be more realistic than the
1954 ''two-phase'' solubility-diffusion model.},
1955 annote = {Ng219 Times Cited:187 Cited References Count:25},
1956 issn = {0022-3654},
1957 uri = {<Go to ISI>://A1994NG21900040},
1958 }
1959
1960 @ARTICLE{Marrink2004,
1961 author = {S.~J. Marrink and A.~H. de~Vries and A.~E. Mark},
1962 title = {Coarse Grained Model for Semiquantitative Lipid Simulations},
1963 journal = {J. Phys. Chem. B},
1964 year = {2004},
1965 volume = {108},
1966 pages = {750-760},
1967 }
1968
1969 @ARTICLE{Marsden1998,
1970 author = {J. E. Marsden and G. W. Patrick and S. Shkoller},
1971 title = {Multisymplectic geometry, variational integrators, and nonlinear
1972 PDEs},
1973 journal = {Communications in Mathematical Physics},
1974 year = {1998},
1975 volume = {199},
1976 pages = {351-395},
1977 number = {2},
1978 month = {Dec},
1979 abstract = {This paper presents a geometric-variational approach to continuous
1980 and discrete mechanics and field theories. Using multisymplectic
1981 geometry, we show that the existence of the fundamental geometric
1982 structures as well as their preservation along solutions can be
1983 obtained directly from the variational principle. In particular,
1984 we prove that a unique multisymplectic structure is obtained by
1985 taking the derivative of an action function, and use this structure
1986 to prove covariant generalizations of conservation of symplecticity
1987 and Noether's theorem. Natural discretization schemes for PDEs,
1988 which have these important preservation properties, then follow
1989 by choosing a discrete action functional. In the case of mechanics,
1990 we recover the variational symplectic integrators of Veselov type,
1991 while for PDEs we obtain covariant spacetime integrators which conserve
1992 the corresponding discrete multisymplectic form as well as the discrete
1993 momentum mappings corresponding to symmetries. We show that the
1994 usual notion of symplecticity along an infinite-dimensional space
1995 of fields can be naturally obtained by making a spacetime split.
1996 All of the aspects of our method are demonstrated with a nonlinear
1997 sine-Gordon equation, including computational results and a comparison
1998 with other discretization schemes.},
1999 annote = {154RH Times Cited:88 Cited References Count:36},
2000 issn = {0010-3616},
2001 uri = {<Go to ISI>://000077902200006},
2002 }
2003
2004 @ARTICLE{Matthey2004,
2005 author = {T. Matthey and T. Cickovski and S. Hampton and A. Ko and Q. Ma and
2006 M. Nyerges and T. Raeder and T. Slabach and J. A. Izaguirre},
2007 title = {ProtoMol, an object-oriented framework for prototyping novel algorithms
2008 for molecular dynamics},
2009 journal = {Acm Transactions on Mathematical Software},
2010 year = {2004},
2011 volume = {30},
2012 pages = {237-265},
2013 number = {3},
2014 month = {Sep},
2015 abstract = {PROTOMOL is a high-performance framework in C++ for rapid prototyping
2016 of novel algorithms for molecular dynamics and related applications.
2017 Its flexibility is achieved primarily through the use of inheritance
2018 and design patterns (object-oriented programming): Performance is
2019 obtained by using templates that enable generation of efficient
2020 code for sections critical to performance (generic programming).
2021 The framework encapsulates important optimizations that can be used
2022 by developers, such as parallelism in the force computation. Its
2023 design is based on domain analysis of numerical integrators for
2024 molecular dynamics (MD) and of fast solvers for the force computation,
2025 particularly due to electrostatic interactions. Several new and
2026 efficient algorithms are implemented in PROTOMOL. Finally, it is
2027 shown that PROTOMOL'S sequential performance is excellent when compared
2028 to a leading MD program, and that it scales well for moderate number
2029 of processors. Binaries and source codes for Windows, Linux, Solaris,
2030 IRIX, HP-UX, and AIX platforms are available under open source license
2031 at http://protomol.sourceforge.net.},
2032 annote = {860EP Times Cited:2 Cited References Count:52},
2033 issn = {0098-3500},
2034 uri = {<Go to ISI>://000224325600001},
2035 }
2036
2037 @ARTICLE{McLachlan1993,
2038 author = {R.~I McLachlan},
2039 title = {Explicit Lie-Poisson integration and the Euler equations},
2040 journal = {prl},
2041 year = {1993},
2042 volume = {71},
2043 pages = {3043-3046},
2044 }
2045
2046 @ARTICLE{McLachlan1998,
2047 author = {R. I. McLachlan and G. R. W. Quispel},
2048 title = {Generating functions for dynamical systems with symmetries, integrals,
2049 and differential invariants},
2050 journal = {Physica D},
2051 year = {1998},
2052 volume = {112},
2053 pages = {298-309},
2054 number = {1-2},
2055 month = {Jan 15},
2056 abstract = {We give a survey and some new examples of generating functions for
2057 systems with symplectic structure, systems with a first integral,
2058 systems that preserve volume, and systems with symmetries and/or
2059 time-reversing symmetries. Both ODEs and maps are treated, and we
2060 discuss how generating functions may be used in the structure-preserving
2061 numerical integration of ODEs with the above properties.},
2062 annote = {Yt049 Times Cited:7 Cited References Count:26},
2063 issn = {0167-2789},
2064 uri = {<Go to ISI>://000071558900021},
2065 }
2066
2067 @ARTICLE{McLachlan1998a,
2068 author = {R. I. McLachlan and G. R. W. Quispel and G. S. Turner},
2069 title = {Numerical integrators that preserve symmetries and reversing symmetries},
2070 journal = {Siam Journal on Numerical Analysis},
2071 year = {1998},
2072 volume = {35},
2073 pages = {586-599},
2074 number = {2},
2075 month = {Apr},
2076 abstract = {We consider properties of flows, the relationships between them, and
2077 whether numerical integrators can be made to preserve these properties.
2078 This is done in the context of automorphisms and antiautomorphisms
2079 of a certain group generated by maps associated to vector fields.
2080 This new framework unifies several known constructions. We also
2081 use the concept of #covariance# of a numerical method with respect
2082 to a group of coordinate transformations. The main application is
2083 to explore the relationship between spatial symmetries, reversing
2084 symmetries, and time symmetry of flows and numerical integrators.},
2085 annote = {Zc449 Times Cited:14 Cited References Count:33},
2086 issn = {0036-1429},
2087 uri = {<Go to ISI>://000072580500010},
2088 }
2089
2090 @ARTICLE{McLachlan2005,
2091 author = {R. I. McLachlan and A. Zanna},
2092 title = {The discrete Moser-Veselov algorithm for the free rigid body, revisited},
2093 journal = {Foundations of Computational Mathematics},
2094 year = {2005},
2095 volume = {5},
2096 pages = {87-123},
2097 number = {1},
2098 month = {Feb},
2099 abstract = {In this paper we revisit the Moser-Veselov description of the free
2100 rigid body in body coordinates, which, in the 3 x 3 case, can be
2101 implemented as an explicit, second-order, integrable approximation
2102 of the continuous solution. By backward error analysis, we study
2103 the modified vector field which is integrated exactly by the discrete
2104 algorithm. We deduce that the discrete Moser-Veselov (DMV) is well
2105 approximated to higher order by time reparametrizations of the continuous
2106 equations (modified vector field). We use the modified vector field
2107 to scale the initial data of the DMV to improve the order of the
2108 approximation and show the equivalence of the DMV and the RATTLE
2109 algorithm. Numerical integration with these preprocessed initial
2110 data is several orders of magnitude more accurate than the original
2111 DMV and RATTLE approach.},
2112 annote = {911NS Times Cited:0 Cited References Count:14},
2113 issn = {1615-3375},
2114 uri = {<Go to ISI>://000228011900003},
2115 }
2116
2117 @ARTICLE{Meineke2005,
2118 author = {M. A. Meineke and C. F. Vardeman and T. Lin and C. J. Fennell and
2119 J. D. Gezelter},
2120 title = {OOPSE: An object-oriented parallel simulation engine for molecular
2121 dynamics},
2122 journal = {Journal of Computational Chemistry},
2123 year = {2005},
2124 volume = {26},
2125 pages = {252-271},
2126 number = {3},
2127 month = {Feb},
2128 abstract = {OOPSE is a new molecular dynamics simulation program that is capable
2129 of efficiently integrating equations of motion for atom types with
2130 orientational degrees of freedom (e.g. #sticky# atoms and point
2131 dipoles). Transition metals can also be simulated using the embedded
2132 atom method (EAM) potential included in the code. Parallel simulations
2133 are carried out using the force-based decomposition method. Simulations
2134 are specified using a very simple C-based meta-data language. A
2135 number of advanced integrators are included, and the basic integrator
2136 for orientational dynamics provides substantial improvements over
2137 older quaternion-based schemes. (C) 2004 Wiley Periodicals, Inc.},
2138 annote = {891CF Times Cited:1 Cited References Count:56},
2139 issn = {0192-8651},
2140 uri = {<Go to ISI>://000226558200006},
2141 }
2142
2143 @ARTICLE{Melchionna1993,
2144 author = {S. Melchionna and G. Ciccotti and B. L. Holian},
2145 title = {Hoover Npt Dynamics for Systems Varying in Shape and Size},
2146 journal = {Molecular Physics},
2147 year = {1993},
2148 volume = {78},
2149 pages = {533-544},
2150 number = {3},
2151 month = {Feb 20},
2152 abstract = {In this paper we write down equations of motion (following the approach
2153 pioneered by Hoover) for an exact isothermal-isobaric molecular
2154 dynamics simulation, and we extend them to multiple thermostating
2155 rates, to a shape-varying cell and to molecular systems, coherently
2156 with the previous 'extended system method'. An integration scheme
2157 is proposed together with a numerical illustration of the method.},
2158 annote = {Kq355 Times Cited:172 Cited References Count:17},
2159 issn = {0026-8976},
2160 uri = {<Go to ISI>://A1993KQ35500002},
2161 }
2162
2163 @ARTICLE{Memmer2002,
2164 author = {R. Memmer},
2165 title = {Liquid crystal phases of achiral banana-shaped molecules: a computer
2166 simulation study},
2167 journal = {Liquid Crystals},
2168 year = {2002},
2169 volume = {29},
2170 pages = {483-496},
2171 number = {4},
2172 month = {Apr},
2173 abstract = {The phase behaviour of achiral banana-shaped molecules was studied
2174 by computer simulation. The banana-shaped molecules were described
2175 by model intermolecular interactions based on the Gay-Berne potential.
2176 The characteristic molecular structure was considered by joining
2177 two calamitic Gay-Berne particles through a bond to form a biaxial
2178 molecule of point symmetry group C-2v with a suitable bending angle.
2179 The dependence on temperature of systems of N=1024 rigid banana-shaped
2180 molecules with bending angle phi=140degrees has been studied by
2181 means of Monte Carlo simulations in the isobaric-isothermal ensemble
2182 (NpT). On cooling an isotropic system, two phase transitions characterized
2183 by phase transition enthalpy, entropy and relative volume change
2184 have been observed. For the first time by computer simulation of
2185 a many-particle system of banana-shaped molecules, at low temperature
2186 an untilted smectic phase showing a global phase biaxiality and
2187 a spontaneous local polarization in the layers, i.e. a local polar
2188 arrangement of the steric dipoles, with an antiferroelectric-like
2189 superstructure could be proven, a phase structure which recently
2190 has been discovered experimentally. Additionally, at intermediate
2191 temperature a nematic-like phase has been proved, whereas close
2192 to the transition to the smectic phase hints of a spontaneous achiral
2193 symmetry breaking have been determined. Here, in the absence of
2194 a layered structure a helical superstructure has been formed. All
2195 phases have been characterized by visual representations of selected
2196 configurations, scalar and pseudoscalar correlation functions, and
2197 order parameters.},
2198 annote = {531HT Times Cited:12 Cited References Count:37},
2199 issn = {0267-8292},
2200 uri = {<Go to ISI>://000174410500001},
2201 }
2202
2203 @ARTICLE{Metropolis1949,
2204 author = {N. Metropolis and S. Ulam},
2205 title = {The $\mbox{Monte Carlo}$ Method},
2206 journal = {J. Am. Stat. Ass.},
2207 year = {1949},
2208 volume = {44},
2209 pages = {335-341},
2210 }
2211
2212 @ARTICLE{Mielke2004,
2213 author = {S. P. Mielke and W. H. Fink and V. V. Krishnan and N. Gronbech-Jensen
2214 and C. J. Benham},
2215 title = {Transcription-driven twin supercoiling of a DNA loop: A Brownian
2216 dynamics study},
2217 journal = {Journal of Chemical Physics},
2218 year = {2004},
2219 volume = {121},
2220 pages = {8104-8112},
2221 number = {16},
2222 month = {Oct 22},
2223 abstract = {The torque generated by RNA polymerase as it tracks along double-stranded
2224 DNA can potentially induce long-range structural deformations integral
2225 to mechanisms of biological significance in both prokaryotes and
2226 eukaryotes. In this paper, we introduce a dynamic computer model
2227 for investigating this phenomenon. Duplex DNA is represented as
2228 a chain of hydrodynamic beads interacting through potentials of
2229 linearly elastic stretching, bending, and twisting, as well as excluded
2230 volume. The chain, linear when relaxed, is looped to form two open
2231 but topologically constrained subdomains. This permits the dynamic
2232 introduction of torsional stress via a centrally applied torque.
2233 We simulate by Brownian dynamics the 100 mus response of a 477-base
2234 pair B-DNA template to the localized torque generated by the prokaryotic
2235 transcription ensemble. Following a sharp rise at early times, the
2236 distributed twist assumes a nearly constant value in both subdomains,
2237 and a succession of supercoiling deformations occurs as superhelical
2238 stress is increasingly partitioned to writhe. The magnitude of writhe
2239 surpasses that of twist before also leveling off when the structure
2240 reaches mechanical equilibrium with the torsional load. Superhelicity
2241 is simultaneously right handed in one subdomain and left handed
2242 in the other, as predicted by the #transcription-induced##twin-supercoiled-domain#
2243 model [L. F. Liu and J. C. Wang, Proc. Natl. Acad. Sci. U.S.A. 84,
2244 7024 (1987)]. The properties of the chain at the onset of writhing
2245 agree well with predictions from theory, and the generated stress
2246 is ample for driving secondary structural transitions in physiological
2247 DNA. (C) 2004 American Institute of Physics.},
2248 annote = {861ZF Times Cited:3 Cited References Count:34},
2249 issn = {0021-9606},
2250 uri = {<Go to ISI>://000224456500064},
2251 }
2252
2253 @ARTICLE{Naess2001,
2254 author = {S. N. Naess and H. M. Adland and A. Mikkelsen and A. Elgsaeter},
2255 title = {Brownian dynamics simulation of rigid bodies and segmented polymer
2256 chains. Use of Cartesian rotation vectors as the generalized coordinates
2257 describing angular orientations},
2258 journal = {Physica A},
2259 year = {2001},
2260 volume = {294},
2261 pages = {323-339},
2262 number = {3-4},
2263 month = {May 15},
2264 abstract = {The three Eulerian angles constitute the classical choice of generalized
2265 coordinates used to describe the three degrees of rotational freedom
2266 of a rigid body, but it has long been known that this choice yields
2267 singular equations of motion. The latter is also true when Eulerian
2268 angles are used in Brownian dynamics analyses of the angular orientation
2269 of single rigid bodies and segmented polymer chains. Starting from
2270 kinetic theory we here show that by instead employing the three
2271 components of Cartesian rotation vectors as the generalized coordinates
2272 describing angular orientation, no singularity appears in the configuration
2273 space diffusion equation and the associated Brownian dynamics algorithm.
2274 The suitability of Cartesian rotation vectors in Brownian dynamics
2275 simulations of segmented polymer chains with spring-like or ball-socket
2276 joints is discussed. (C) 2001 Elsevier Science B.V. All rights reserved.},
2277 annote = {433TA Times Cited:7 Cited References Count:19},
2278 issn = {0378-4371},
2279 uri = {<Go to ISI>://000168774800005},
2280 }
2281
2282 @ARTICLE{Niori1996,
2283 author = {T. Niori and T. Sekine and J. Watanabe and T. Furukawa and H. Takezoe},
2284 title = {Distinct ferroelectric smectic liquid crystals consisting of banana
2285 shaped achiral molecules},
2286 journal = {Journal of Materials Chemistry},
2287 year = {1996},
2288 volume = {6},
2289 pages = {1231-1233},
2290 number = {7},
2291 month = {Jul},
2292 abstract = {The synthesis of a banana-shaped molecule is reported and it is found
2293 that the smectic phase which it forms is biaxial with the molecules
2294 packed in the best,direction into a layer. Because of this characteristic
2295 packing, spontaneous polarization appears parallel to the layer
2296 and switches on reversal of an applied electric field. This is the
2297 first obvious example of ferroelectricity in an achiral smectic
2298 phase and is ascribed to the C-2v symmetry of the molecular packing.},
2299 annote = {Ux855 Times Cited:447 Cited References Count:18},
2300 issn = {0959-9428},
2301 uri = {<Go to ISI>://A1996UX85500025},
2302 }
2303
2304 @ARTICLE{Noguchi2002,
2305 author = {H. Noguchi and M. Takasu},
2306 title = {Structural changes of pulled vesicles: A Brownian dynamics simulation},
2307 journal = {Physical Review E},
2308 year = {2002},
2309 volume = {65},
2310 pages = {-},
2311 number = {5},
2312 month = {may},
2313 abstract = {We Studied the structural changes of bilayer vesicles induced by mechanical
2314 forces using a Brownian dynamics simulation. Two nanoparticles,
2315 which interact repulsively with amphiphilic molecules, are put inside
2316 a vesicle. The position of one nanoparticle is fixed, and the other
2317 is moved by a constant force as in optical-trapping experiments.
2318 First, the pulled vesicle stretches into a pear or tube shape. Then
2319 the inner monolayer in the tube-shaped region is deformed, and a
2320 cylindrical structure is formed between two vesicles. After stretching
2321 the cylindrical region, fission occurs near the moved vesicle. Soon
2322 after this the cylindrical region shrinks. The trapping force similar
2323 to 100 pN is needed to induce the formation of the cylindrical structure
2324 and fission.},
2325 annote = {Part 1 568PX Times Cited:5 Cited References Count:39},
2326 issn = {1063-651X},
2327 uri = {<Go to ISI>://000176552300084},
2328 }
2329
2330 @ARTICLE{Noguchi2001,
2331 author = {H. Noguchi and M. Takasu},
2332 title = {Fusion pathways of vesicles: A Brownian dynamics simulation},
2333 journal = {Journal of Chemical Physics},
2334 year = {2001},
2335 volume = {115},
2336 pages = {9547-9551},
2337 number = {20},
2338 month = {Nov 22},
2339 abstract = {We studied the fusion dynamics of vesicles using a Brownian dynamics
2340 simulation. Amphiphilic molecules spontaneously form vesicles with
2341 a bilayer structure. Two vesicles come into contact and form a stalk
2342 intermediate, in which a necklike structure only connects the outer
2343 monolayers, as predicted by the stalk hypothesis. We have found
2344 a new pathway of pore opening from stalks at high temperature: the
2345 elliptic stalk bends and contact between the ends of the arc-shaped
2346 stalk leads to pore opening. On the other hand, we have clarified
2347 that the pore-opening process at low temperature agrees with the
2348 modified stalk model: a pore is induced by contact between the inner
2349 monolayers inside the stalk. (C) 2001 American Institute of Physics.},
2350 annote = {491UW Times Cited:48 Cited References Count:25},
2351 issn = {0021-9606},
2352 uri = {<Go to ISI>://000172129300049},
2353 }
2354
2355 @BOOK{Olver1986,
2356 title = {Applications of Lie groups to differential equatitons},
2357 publisher = {Springer},
2358 year = {1986},
2359 author = {P.J. Olver},
2360 address = {New York},
2361 }
2362
2363 @ARTICLE{Omelyan1998,
2364 author = {I. P. Omelyan},
2365 title = {On the numerical integration of motion for rigid polyatomics: The
2366 modified quaternion approach},
2367 journal = {Computers in Physics},
2368 year = {1998},
2369 volume = {12},
2370 pages = {97-103},
2371 number = {1},
2372 month = {Jan-Feb},
2373 abstract = {A revised version of the quaternion approach for numerical integration
2374 of the equations of motion for rigid polyatomic molecules is proposed.
2375 The modified approach is based on a formulation of the quaternion
2376 dynamics with constraints. This allows one to resolve the rigidity
2377 problem rigorously using constraint forces. It is shown that the
2378 procedure for preservation of molecular rigidity can be realized
2379 particularly simply within the Verlet algorithm in velocity form.
2380 We demonstrate that the method presented leads to an improved numerical
2381 stability with respect to the usual quaternion rescaling scheme
2382 and it is roughly as good as the cumbersome atomic-constraint technique.
2383 (C) 1998 American Institute of Physics.},
2384 annote = {Yx279 Times Cited:12 Cited References Count:28},
2385 issn = {0894-1866},
2386 uri = {<Go to ISI>://000072024300025},
2387 }
2388
2389 @ARTICLE{Omelyan1998a,
2390 author = {I. P. Omelyan},
2391 title = {Algorithm for numerical integration of the rigid-body equations of
2392 motion},
2393 journal = {Physical Review E},
2394 year = {1998},
2395 volume = {58},
2396 pages = {1169-1172},
2397 number = {1},
2398 month = {Jul},
2399 abstract = {An algorithm for numerical integration of the rigid-body equations
2400 of motion is proposed. The algorithm uses the leapfrog scheme and
2401 the quantities involved are angular velocities and orientational
2402 variables that can be expressed in terms of either principal axes
2403 or quaternions. Due to specific features of the algorithm, orthonormality
2404 and unit norms of the orientational variables are integrals of motion,
2405 despite an approximate character of the produced trajectories. It
2406 is shown that the method presented appears to be the most efficient
2407 among all such algorithms known.},
2408 annote = {101XL Times Cited:8 Cited References Count:22},
2409 issn = {1063-651X},
2410 uri = {<Go to ISI>://000074893400151},
2411 }
2412
2413 @ARTICLE{Orlandi2006,
2414 author = {S. Orlandi and R. Berardi and J. Steltzer and C. Zannoni},
2415 title = {A Monte Carlo study of the mesophases formed by polar bent-shaped
2416 molecules},
2417 journal = {Journal of Chemical Physics},
2418 year = {2006},
2419 volume = {124},
2420 pages = {-},
2421 number = {12},
2422 month = {Mar 28},
2423 abstract = {Liquid crystal phases formed by bent-shaped (or #banana#) molecules
2424 are currently of great interest. Here we investigate by Monte Carlo
2425 computer simulations the phases formed by rigid banana molecules
2426 modeled combining three Gay-Berne sites and containing either one
2427 central or two lateral and transversal dipoles. We show that changing
2428 the dipole position and orientation has a profound effect on the
2429 mesophase stability and molecular organization. In particular, we
2430 find a uniaxial nematic phase only for off-center dipolar models
2431 and tilted phases only for the one with terminal dipoles. (c) 2006
2432 American Institute of Physics.},
2433 annote = {028CP Times Cited:0 Cited References Count:42},
2434 issn = {0021-9606},
2435 uri = {<Go to ISI>://000236464000072},
2436 }
2437
2438 @ARTICLE{Owren1992,
2439 author = {B. Owren and M. Zennaro},
2440 title = {Derivation of Efficient, Continuous, Explicit Runge-Kutta Methods},
2441 journal = {Siam Journal on Scientific and Statistical Computing},
2442 year = {1992},
2443 volume = {13},
2444 pages = {1488-1501},
2445 number = {6},
2446 month = {Nov},
2447 abstract = {Continuous, explicit Runge-Kutta methods with the minimal number of
2448 stages are considered. These methods are continuously differentiable
2449 if and only if one of the stages is the FSAL evaluation. A characterization
2450 of a subclass of these methods is developed for orders 3, 4, and
2451 5. It is shown how the free parameters of these methods can be used
2452 either to minimize the continuous truncation error coefficients
2453 or to maximize the stability region. As a representative for these
2454 methods the fifth-order method with minimized error coefficients
2455 is chosen, supplied with an error estimation method, and analysed
2456 by using the DETEST software. The results are compared with a similar
2457 implementation of the Dormand-Prince 5(4) pair with interpolant,
2458 showing a significant advantage in the new method for the chosen
2459 problems.},
2460 annote = {Ju936 Times Cited:25 Cited References Count:20},
2461 issn = {0196-5204},
2462 uri = {<Go to ISI>://A1992JU93600013},
2463 }
2464
2465 @ARTICLE{Palacios1998,
2466 author = {J. L. Garcia-Palacios and F. J. Lazaro},
2467 title = {Langevin-dynamics study of the dynamical properties of small magnetic
2468 particles},
2469 journal = {Physical Review B},
2470 year = {1998},
2471 volume = {58},
2472 pages = {14937-14958},
2473 number = {22},
2474 month = {Dec 1},
2475 abstract = {The stochastic Landau-Lifshitz-Gilbert equation of motion for a classical
2476 magnetic moment is numerically solved (properly observing the customary
2477 interpretation of it as a Stratonovich stochastic differential equation),
2478 in order to study the dynamics of magnetic nanoparticles. The corresponding
2479 Langevin-dynamics approach allows for the study of the fluctuating
2480 trajectories of individual magnetic moments, where we have encountered
2481 remarkable phenomena in the overbarrier rotation process, such as
2482 crossing-back or multiple crossing of the potential barrier, rooted
2483 in the gyromagnetic nature of the system. Concerning averaged quantities,
2484 we study the linear dynamic response of the archetypal ensemble
2485 of noninteracting classical magnetic moments with axially symmetric
2486 magnetic anisotropy. The results are compared with different analytical
2487 expressions used to model the relaxation of nanoparticle ensembles,
2488 assessing their accuracy. It has been found that, among a number
2489 of heuristic expressions for the linear dynamic susceptibility,
2490 only the simple formula proposed by Shliomis and Stepanov matches
2491 the coarse features of the susceptibility reasonably. By comparing
2492 the numerical results with the asymptotic formula of Storonkin {Sov.
2493 Phys. Crystallogr. 30, 489 (1985) [Kristallografiya 30, 841 (1985)]},
2494 the effects of the intra-potential-well relaxation modes on the
2495 low-temperature longitudinal dynamic response have been assessed,
2496 showing their relatively small reflection in the susceptibility
2497 curves but their dramatic influence on the phase shifts. Comparison
2498 of the numerical results with the exact zero-damping expression
2499 for the transverse susceptibility by Garanin, Ishchenko, and Panina
2500 {Theor. Math. Phys. (USSR) 82, 169 (1990) [Teor. Mat. Fit. 82, 242
2501 (1990)]}, reveals a sizable contribution of the spread of the precession
2502 frequencies of the magnetic moment in the anisotropy field to the
2503 dynamic response at intermediate-to-high temperatures. [S0163-1829
2504 (98)00446-9].},
2505 annote = {146XW Times Cited:66 Cited References Count:45},
2506 issn = {0163-1829},
2507 uri = {<Go to ISI>://000077460000052},
2508 }
2509
2510 @ARTICLE{Parr1995,
2511 author = {T. J. Parr and R. W. Quong},
2512 title = {Antlr - a Predicated-Ll(K) Parser Generator},
2513 journal = {Software-Practice \& Experience},
2514 year = {1995},
2515 volume = {25},
2516 pages = {789-810},
2517 number = {7},
2518 month = {Jul},
2519 abstract = {Despite the parsing power of LR/LALR algorithms, e.g. YACC, programmers
2520 often choose to write recursive-descent parsers by hand to obtain
2521 increased flexibility, better error handling, and ease of debugging.
2522 We introduce ANTLR, a public-domain parser generator that combines
2523 the flexibility of hand-coded parsing with the convenience of a
2524 parser generator, which is a component of PCCTS. ANTLR has many
2525 features that make it easier to use than other language tools. Most
2526 important, ANTLR provides predicates which let the programmer systematically
2527 direct the parse via arbitrary expressions using semantic and syntactic
2528 context; in practice, the use of predicates eliminates the need
2529 to hand-tweak the ANTLR output, even for difficult parsing problems.
2530 ANTLR also integrates the description of lexical and syntactic analysis,
2531 accepts LL(k) grammars for k > 1 with extended BNF notation, and
2532 can automatically generate abstract syntax trees. ANTLR is widely
2533 used, with over 1000 registered industrial and academic users in
2534 37 countries. It has been ported to many popular systems such as
2535 the PC, Macintosh, and a variety of UNIX platforms; a commercial
2536 C++ front-end has been developed as a result of one of our industrial
2537 collaborations.},
2538 annote = {Rk104 Times Cited:19 Cited References Count:10},
2539 issn = {0038-0644},
2540 uri = {<Go to ISI>://A1995RK10400004},
2541 }
2542
2543 @ARTICLE{Pastor1988,
2544 author = {R. W. Pastor and B. R. Brooks and A. Szabo},
2545 title = {An Analysis of the Accuracy of Langevin and Molecular-Dynamics Algorithms},
2546 journal = {Molecular Physics},
2547 year = {1988},
2548 volume = {65},
2549 pages = {1409-1419},
2550 number = {6},
2551 month = {Dec 20},
2552 annote = {T1302 Times Cited:61 Cited References Count:26},
2553 issn = {0026-8976},
2554 uri = {<Go to ISI>://A1988T130200011},
2555 }
2556
2557 @ARTICLE{Pelzl1999,
2558 author = {G. Pelzl and S. Diele and W. Weissflog},
2559 title = {Banana-shaped compounds - A new field of liquid crystals},
2560 journal = {Advanced Materials},
2561 year = {1999},
2562 volume = {11},
2563 pages = {707-724},
2564 number = {9},
2565 month = {Jul 5},
2566 annote = {220RC Times Cited:313 Cited References Count:49},
2567 issn = {0935-9648},
2568 uri = {<Go to ISI>://000081680400007},
2569 }
2570
2571 @ARTICLE{Perram1985,
2572 author = {J. W. Perram and M. S. Wertheim},
2573 title = {Statistical-Mechanics of Hard Ellipsoids .1. Overlap Algorithm and
2574 the Contact Function},
2575 journal = {Journal of Computational Physics},
2576 year = {1985},
2577 volume = {58},
2578 pages = {409-416},
2579 number = {3},
2580 annote = {Akb93 Times Cited:71 Cited References Count:12},
2581 issn = {0021-9991},
2582 uri = {<Go to ISI>://A1985AKB9300008},
2583 }
2584
2585 @ARTICLE{Rotne1969,
2586 author = {F. Perrin},
2587 title = {Variational treatment of hydrodynamic interaction in polymers},
2588 journal = {J. Chem. Phys.},
2589 year = {1969},
2590 volume = {50},
2591 pages = {4831¨C4837},
2592 }
2593
2594 @ARTICLE{Perrin1936,
2595 author = {F. Perrin},
2596 title = {Mouvement brownien d'un ellipsoid(II). Rotation libre et depolarisation
2597 des fluorescences. Translation et diffusion de moleculese ellipsoidales},
2598 journal = {J. Phys. Radium},
2599 year = {1936},
2600 volume = {7},
2601 pages = {1-11},
2602 }
2603
2604 @ARTICLE{Perrin1934,
2605 author = {F. Perrin},
2606 title = {Mouvement brownien d'un ellipsoid(I). Dispersion dielectrique pour
2607 des molecules ellipsoidales},
2608 journal = {J. Phys. Radium},
2609 year = {1934},
2610 volume = {5},
2611 pages = {497-511},
2612 }
2613
2614 @ARTICLE{Petrache2000,
2615 author = {H.~I. Petrache and S.~W. Dodd and M.~F. Brown},
2616 title = {Area per Lipid and Acyl Length Distributions in Fluid Phosphatidylcholines
2617 Determined by $^2\text{H}$ {\sc nmr} Spectroscopy},
2618 journal = {Biophysical Journal},
2619 year = {2000},
2620 volume = {79},
2621 pages = {3172-3192},
2622 }
2623
2624 @ARTICLE{Petrache1998,
2625 author = {H. I. Petrache and S. Tristram-Nagle and J. F. Nagle},
2626 title = {Fluid phase structure of EPC and DMPC bilayers},
2627 journal = {Chemistry and Physics of Lipids},
2628 year = {1998},
2629 volume = {95},
2630 pages = {83-94},
2631 number = {1},
2632 month = {Sep},
2633 abstract = {X-ray diffraction data taken at high instrumental resolution were
2634 obtained for EPC and DMPC under various osmotic pressures, primarily
2635 at T = 30 degrees C. The headgroup thickness D-HH was obtained from
2636 relative electron density profiles. By using volumetric results
2637 and by comparing to gel phase DPPC we obtain areas A(EPC)(F) = 69.4
2638 +/- 1.1 Angstrom(2) and A(DMPC)(F) = 59.7 +/- 0.2 Angstrom(2). The
2639 analysis also gives estimates for the areal compressibility K-A.
2640 The A(F) results lead to other structural results regarding membrane
2641 thickness and associated waters. Using the recently determined absolute
2642 electrons density profile of DPPC, the AF results also lead to absolute
2643 electron density profiles and absolute continuous transforms \F(q)\
2644 for EPC and DMPC, Limited measurements of temperature dependence
2645 show directly that fluctuations increase with increasing temperature
2646 and that a small decrease in bending modulus K-c accounts for the
2647 increased water spacing reported by Simon et al. (1995) Biophys.
2648 J. 69, 1473-1483. (C) 1998 Elsevier Science Ireland Ltd. All rights
2649 reserved.},
2650 annote = {130AT Times Cited:98 Cited References Count:39},
2651 issn = {0009-3084},
2652 uri = {<Go to ISI>://000076497600007},
2653 }
2654
2655 @ARTICLE{Powles1973,
2656 author = {J.~G. Powles},
2657 title = {A general ellipsoid can not always serve as a modle for the rotational
2658 diffusion properties of arbitrary shaped rigid molecules},
2659 journal = {Advan. Phys.},
2660 year = {1973},
2661 volume = {22},
2662 pages = {1-56},
2663 }
2664
2665 @ARTICLE{Recio2004,
2666 author = {J. Fernandez-Recio and M. Totrov and R. Abagyan},
2667 title = {Identification of protein-protein interaction sites from docking
2668 energy landscapes},
2669 journal = {Journal of Molecular Biology},
2670 year = {2004},
2671 volume = {335},
2672 pages = {843-865},
2673 number = {3},
2674 month = {Jan 16},
2675 abstract = {Protein recognition is one of the most challenging and intriguing
2676 problems in structural biology. Despite all the available structural,
2677 sequence and biophysical information about protein-protein complexes,
2678 the physico-chemical patterns, if any, that make a protein surface
2679 likely to be involved in protein-protein interactions, remain elusive.
2680 Here, we apply protein docking simulations and analysis of the interaction
2681 energy landscapes to identify protein-protein interaction sites.
2682 The new protocol for global docking based on multi-start global
2683 energy optimization of an allatom model of the ligand, with detailed
2684 receptor potentials and atomic solvation parameters optimized in
2685 a training set of 24 complexes, explores the conformational space
2686 around the whole receptor without restrictions. The ensembles of
2687 the rigid-body docking solutions generated by the simulations were
2688 subsequently used to project the docking energy landscapes onto
2689 the protein surfaces. We found that highly populated low-energy
2690 regions consistently corresponded to actual binding sites. The procedure
2691 was validated on a test set of 21 known protein-protein complexes
2692 not used in the training set. As much as 81% of the predicted high-propensity
2693 patch residues were located correctly in the native interfaces.
2694 This approach can guide the design of mutations on the surfaces
2695 of proteins, provide geometrical details of a possible interaction,
2696 and help to annotate protein surfaces in structural proteomics.
2697 (C) 2003 Elsevier Ltd. All rights reserved.},
2698 annote = {763GQ Times Cited:21 Cited References Count:59},
2699 issn = {0022-2836},
2700 uri = {<Go to ISI>://000188066900016},
2701 }
2702
2703 @ARTICLE{Reddy2006,
2704 author = {R. A. Reddy and C. Tschierske},
2705 title = {Bent-core liquid crystals: polar order, superstructural chirality
2706 and spontaneous desymmetrisation in soft matter systems},
2707 journal = {Journal of Materials Chemistry},
2708 year = {2006},
2709 volume = {16},
2710 pages = {907-961},
2711 number = {10},
2712 abstract = {An overview on the recent developments in the field of liquid crystalline
2713 bent-core molecules (so-called banana liquid crystals) is given.
2714 After some basic issues, dealing with general aspects of the systematisation
2715 of the mesophases, development of polar order and chirality in this
2716 class of LC systems and explaining some general structure-property
2717 relationships, we focus on fascinating new developments in this
2718 field, such as modulated, undulated and columnar phases, so-called
2719 B7 phases, phase biaxiality, ferroelectric and antiferroelectric
2720 polar order in smectic and columnar phases, amplification and switching
2721 of chirality and the spontaneous formation of superstructural and
2722 supramolecular chirality.},
2723 annote = {021NS Times Cited:2 Cited References Count:316},
2724 issn = {0959-9428},
2725 uri = {<Go to ISI>://000235990500001},
2726 }
2727
2728 @ARTICLE{Reich1999,
2729 author = {S. Reich},
2730 title = {Backward error analysis for numerical integrators},
2731 journal = {Siam Journal on Numerical Analysis},
2732 year = {1999},
2733 volume = {36},
2734 pages = {1549-1570},
2735 number = {5},
2736 month = {Sep 8},
2737 abstract = {Backward error analysis has become an important tool for understanding
2738 the long time behavior of numerical integration methods. This is
2739 true in particular for the integration of Hamiltonian systems where
2740 backward error analysis can be used to show that a symplectic method
2741 will conserve energy over exponentially long periods of time. Such
2742 results are typically based on two aspects of backward error analysis:
2743 (i) It can be shown that the modified vector fields have some qualitative
2744 properties which they share with the given problem and (ii) an estimate
2745 is given for the difference between the best interpolating vector
2746 field and the numerical method. These aspects have been investigated
2747 recently, for example, by Benettin and Giorgilli in [J. Statist.
2748 Phys., 74 (1994), pp. 1117-1143], by Hairer in [Ann. Numer. Math.,
2749 1 (1994), pp. 107-132], and by Hairer and Lubich in [Numer. Math.,
2750 76 (1997), pp. 441-462]. In this paper we aim at providing a unifying
2751 framework and a simplification of the existing results and corresponding
2752 proofs. Our approach to backward error analysis is based on a simple
2753 recursive definition of the modified vector fields that does not
2754 require explicit Taylor series expansion of the numerical method
2755 and the corresponding flow maps as in the above-cited works. As
2756 an application we discuss the long time integration of chaotic Hamiltonian
2757 systems and the approximation of time averages along numerically
2758 computed trajectories.},
2759 annote = {237HV Times Cited:43 Cited References Count:41},
2760 issn = {0036-1429},
2761 uri = {<Go to ISI>://000082650600010},
2762 }
2763
2764 @ARTICLE{Ros2005,
2765 author = {M. B. Ros and J. L. Serrano and M. R. {de la Fuente} and C. L. Folcia},
2766 title = {Banana-shaped liquid crystals: a new field to explore},
2767 journal = {Journal of Materials Chemistry},
2768 year = {2005},
2769 volume = {15},
2770 pages = {5093-5098},
2771 number = {48},
2772 abstract = {The recent literature in the field of liquid crystals shows that banana-shaped
2773 mesogenic materials represent a bewitching and stimulating field
2774 of research that is interesting both academically and in terms of
2775 applications. Numerous topics are open to investigation in this
2776 area because of the rich phenomenology and new possibilities that
2777 these materials offer. The principal concepts in this area are reviewed
2778 along with recent results. In addition, new directions to stimulate
2779 further research activities are highlighted.},
2780 annote = {990XA Times Cited:3 Cited References Count:72},
2781 issn = {0959-9428},
2782 uri = {<Go to ISI>://000233775500001},
2783 }
2784
2785 @ARTICLE{Roux1991,
2786 author = {B. Roux and M. Karplus},
2787 title = {Ion-Transport in a Gramicidin-Like Channel - Dynamics and Mobility},
2788 journal = {Journal of Physical Chemistry},
2789 year = {1991},
2790 volume = {95},
2791 pages = {4856-4868},
2792 number = {12},
2793 month = {Jun 13},
2794 abstract = {The mobility of water, Na+. and K+ has been calculated inside a periodic
2795 poly-(L,D)-alanine beta-helix, a model for the interior of the gramicidin
2796 channel. Because of the different dynamical regimes for the three
2797 species (high barrier for Na+, low barrier for K+, almost free diffusion
2798 for water), different methods are used to calculate the mobilities.
2799 By use of activated dynamics and a potential of mean force determined
2800 previously (Roux, B.; Karplus, M. Biophys. J. 1991, 59, 961), the
2801 barrier crossing rate of Na+ ion is determined. The motion of Na+
2802 at the transition state is controlled by local interactions and
2803 collisions with the neighboring carbonyls and the two nearest water
2804 molecules. There are significant deviations from transition-state
2805 theory; the transmission coefficient is equal to 0.11. The water
2806 and K+ motions are found to be well described by a diffusive model;
2807 the motion of K+ appears to be controlled by the diffusion of water.
2808 The time-dependent friction functions of Na+ and K+ ions in the
2809 periodic beta-helix are calculated and analyzed by using a generalized
2810 Langevin equation approach. Both Na+ and K+ suffer many rapid collisions,
2811 and their dynamics is overdamped and noninertial. Thus, the selectivity
2812 sequence of ions in the beta-helix is not influenced strongly by
2813 their masses.},
2814 annote = {Fr756 Times Cited:97 Cited References Count:65},
2815 issn = {0022-3654},
2816 uri = {<Go to ISI>://A1991FR75600049},
2817 }
2818
2819 @ARTICLE{Roy2005,
2820 author = {A. Roy and N. V. Madhusudana},
2821 title = {A frustrated packing model for the B-6-B-1-SmAP(A) sequence of phases
2822 in banana shaped molecules},
2823 journal = {European Physical Journal E},
2824 year = {2005},
2825 volume = {18},
2826 pages = {253-258},
2827 number = {3},
2828 month = {Nov},
2829 abstract = {A vast majority of compounds with bent core or banana shaped molecules
2830 exhibit the phase sequence B-6-B-1-B-2 as the chain length is increased
2831 in a homologous series. The B-6 phase has an intercalated fluid
2832 lamellar structure with a layer spacing of half the molecular length.
2833 The B-1 phase has a two dimensionally periodic rectangular columnar
2834 structure. The B-2 phase has a monolayer fluid lamellar structure
2835 with molecules tilted with respect to the layer normal. Neglecting
2836 the tilt order of the molecules in the B-2 phase, we have developed
2837 a frustrated packing model to describe this phase sequence qualitatively.
2838 The model has some analogy with that of the frustrated smectics
2839 exhibited by highly polar rod like molecules.},
2840 annote = {985FW Times Cited:0 Cited References Count:30},
2841 issn = {1292-8941},
2842 uri = {<Go to ISI>://000233363300002},
2843 }
2844
2845 @ARTICLE{Ryckaert1977,
2846 author = {J. P. Ryckaert and G. Ciccotti and H. J. C. Berendsen},
2847 title = {Numerical-Integration of Cartesian Equations of Motion of a System
2848 with Constraints - Molecular-Dynamics of N-Alkanes},
2849 journal = {Journal of Computational Physics},
2850 year = {1977},
2851 volume = {23},
2852 pages = {327-341},
2853 number = {3},
2854 annote = {Cz253 Times Cited:3680 Cited References Count:7},
2855 issn = {0021-9991},
2856 uri = {<Go to ISI>://A1977CZ25300007},
2857 }
2858
2859 @ARTICLE{Sagui1999,
2860 author = {C. Sagui and T. A. Darden},
2861 title = {Molecular dynamics simulations of biomolecules: Long-range electrostatic
2862 effects},
2863 journal = {Annual Review of Biophysics and Biomolecular Structure},
2864 year = {1999},
2865 volume = {28},
2866 pages = {155-179},
2867 abstract = {Current computer simulations of biomolecules typically make use of
2868 classical molecular dynamics methods, as a very large number (tens
2869 to hundreds of thousands) of atoms are involved over timescales
2870 of many nanoseconds. The methodology for treating short-range bonded
2871 and van der Waals interactions has matured. However, long-range
2872 electrostatic interactions still represent a bottleneck in simulations.
2873 In this article, we introduce the basic issues for an accurate representation
2874 of the relevant electrostatic interactions. In spite of the huge
2875 computational time demanded by most biomolecular systems, it is
2876 no longer necessary to resort to uncontrolled approximations such
2877 as the use of cutoffs. In particular, we discuss the Ewald summation
2878 methods, the fast particle mesh methods, and the fast multipole
2879 methods. We also review recent efforts to understand the role of
2880 boundary conditions in systems with long-range interactions, and
2881 conclude with a short perspective on future trends.},
2882 annote = {213KJ Times Cited:126 Cited References Count:73},
2883 issn = {1056-8700},
2884 uri = {<Go to ISI>://000081271400008},
2885 }
2886
2887 @ARTICLE{Sandu1999,
2888 author = {A. Sandu and T. Schlick},
2889 title = {Masking resonance artifacts in force-splitting methods for biomolecular
2890 simulations by extrapolative Langevin dynamics},
2891 journal = {Journal of Computational Physics},
2892 year = {1999},
2893 volume = {151},
2894 pages = {74-113},
2895 number = {1},
2896 month = {May 1},
2897 abstract = {Numerical resonance artifacts have become recognized recently as a
2898 limiting factor to increasing the timestep in multiple-timestep
2899 (MTS) biomolecular dynamics simulations. At certain timesteps correlated
2900 to internal motions (e.g., 5 fs, around half the period of the fastest
2901 bond stretch, T-min), visible inaccuracies or instabilities can
2902 occur. Impulse-MTS schemes are vulnerable to these resonance errors
2903 since large energy pulses are introduced to the governing dynamics
2904 equations when the slow forces are evaluated. We recently showed
2905 that such resonance artifacts can be masked significantly by applying
2906 extrapolative splitting to stochastic dynamics. Theoretical and
2907 numerical analyses of force-splitting integrators based on the Verlet
2908 discretization are reported here for linear models to explain these
2909 observations and to suggest how to construct effective integrators
2910 for biomolecular dynamics that balance stability with accuracy.
2911 Analyses for Newtonian dynamics demonstrate the severe resonance
2912 patterns of the Impulse splitting, with this severity worsening
2913 with the outer timestep. Delta t: Constant Extrapolation is generally
2914 unstable, but the disturbances do not grow with Delta t. Thus. the
2915 stochastic extrapolative combination can counteract generic instabilities
2916 and largely alleviate resonances with a sufficiently strong Langevin
2917 heat-bath coupling (gamma), estimates for which are derived here
2918 based on the fastest and slowest motion periods. These resonance
2919 results generally hold for nonlinear test systems: a water tetramer
2920 and solvated protein. Proposed related approaches such as Extrapolation/Correction
2921 and Midpoint Extrapolation work better than Constant Extrapolation
2922 only for timesteps less than T-min/2. An effective extrapolative
2923 stochastic approach for biomolecules that balances long-timestep
2924 stability with good accuracy for the fast subsystem is then applied
2925 to a biomolecule using a three-class partitioning: the medium forces
2926 are treated by Midpoint Extrapolation via position Verlet, and the
2927 slow forces are incorporated by Constant Extrapolation. The resulting
2928 algorithm (LN) performs well on a solvated protein system in terms
2929 of thermodynamic properties and yields an order of magnitude speedup
2930 with respect to single-timestep Langevin trajectories. Computed
2931 spectral density functions also show how the Newtonian modes can
2932 be approximated by using a small gamma in the range Of 5-20 ps(-1).
2933 (C) 1999 Academic Press.},
2934 annote = {194FM Times Cited:14 Cited References Count:32},
2935 issn = {0021-9991},
2936 uri = {<Go to ISI>://000080181500004},
2937 }
2938
2939 @ARTICLE{Sasaki2004,
2940 author = {Y. Sasaki and R. Shukla and B. D. Smith},
2941 title = {Facilitated phosphatidylserine flip-flop across vesicle and cell
2942 membranes using urea-derived synthetic translocases},
2943 journal = {Organic \& Biomolecular Chemistry},
2944 year = {2004},
2945 volume = {2},
2946 pages = {214-219},
2947 number = {2},
2948 abstract = {Tris(2-aminoethyl) amine derivatives with appended urea and sulfonamide
2949 groups are shown to facilitate the translocation of fluorescent
2950 phospholipid probes and endogenous phosphatidylserine across vesicle
2951 and erythrocyte cell membranes. The synthetic translocases appear
2952 to operate by binding to the phospholipid head groups and forming
2953 lipophilic supramolecular complexes which diffuse through the non-polar
2954 interior of the bilayer membrane.},
2955 annote = {760PX Times Cited:8 Cited References Count:25},
2956 issn = {1477-0520},
2957 uri = {<Go to ISI>://000187843800012},
2958 }
2959
2960 @ARTICLE{Satoh1996,
2961 author = {K. Satoh and S. Mita and S. Kondo},
2962 title = {Monte Carlo simulations using the dipolar Gay-Berne model: Effect
2963 of terminal dipole moment on mesophase formation},
2964 journal = {Chemical Physics Letters},
2965 year = {1996},
2966 volume = {255},
2967 pages = {99-104},
2968 number = {1-3},
2969 month = {Jun 7},
2970 abstract = {The effects of dipole-dipole interaction on mesophase formation are
2971 investigated with a Monte Carlo simulation using the dipolar Gay-Berne
2972 potential. It is shown that the dipole moment at the end of a molecule
2973 causes a shift in the nematic-isotropic transition toward higher
2974 temperature and a spread of the temperature range of the nematic
2975 phase and that layer structures with various interdigitations are
2976 formed in the smectic phase.},
2977 annote = {Uq975 Times Cited:32 Cited References Count:33},
2978 issn = {0009-2614},
2979 uri = {<Go to ISI>://A1996UQ97500017},
2980 }
2981
2982 @ARTICLE{Schaps1999,
2983 author = {G. L. Schaps},
2984 title = {Compiler construction with ANTLR and Java - Tools for building tools},
2985 journal = {Dr Dobbs Journal},
2986 year = {1999},
2987 volume = {24},
2988 pages = {84-+},
2989 number = {3},
2990 month = {Mar},
2991 annote = {163EC Times Cited:0 Cited References Count:0},
2992 issn = {1044-789X},
2993 uri = {<Go to ISI>://000078389200023},
2994 }
2995
2996 @ARTICLE{Shen2002,
2997 author = {M. Y. Shen and K. F. Freed},
2998 title = {Long time dynamics of met-enkephalin: Comparison of explicit and
2999 implicit solvent models},
3000 journal = {Biophysical Journal},
3001 year = {2002},
3002 volume = {82},
3003 pages = {1791-1808},
3004 number = {4},
3005 month = {Apr},
3006 abstract = {Met-enkephalin is one of the smallest opiate peptides. Yet, its dynamical
3007 structure and receptor docking mechanism are still not well understood.
3008 The conformational dynamics of this neuron peptide in liquid water
3009 are studied here by using all-atom molecular dynamics (MID) and
3010 implicit water Langevin dynamics (LD) simulations with AMBER potential
3011 functions and the three-site transferable intermolecular potential
3012 (TIP3P) model for water. To achieve the same simulation length in
3013 physical time, the full MID simulations require 200 times as much
3014 CPU time as the implicit water LID simulations. The solvent hydrophobicity
3015 and dielectric behavior are treated in the implicit solvent LD simulations
3016 by using a macroscopic solvation potential, a single dielectric
3017 constant, and atomic friction coefficients computed using the accessible
3018 surface area method with the TIP3P model water viscosity as determined
3019 here from MID simulations for pure TIP3P water. Both the local and
3020 the global dynamics obtained from the implicit solvent LD simulations
3021 agree very well with those from the explicit solvent MD simulations.
3022 The simulations provide insights into the conformational restrictions
3023 that are associated with the bioactivity of the opiate peptide dermorphin
3024 for the delta-receptor.},
3025 annote = {540MH Times Cited:36 Cited References Count:45},
3026 issn = {0006-3495},
3027 uri = {<Go to ISI>://000174932400010},
3028 }
3029
3030 @ARTICLE{Shillcock2005,
3031 author = {J. C. Shillcock and R. Lipowsky},
3032 title = {Tension-induced fusion of bilayer membranes and vesicles},
3033 journal = {Nature Materials},
3034 year = {2005},
3035 volume = {4},
3036 pages = {225-228},
3037 number = {3},
3038 month = {Mar},
3039 annote = {901QJ Times Cited:9 Cited References Count:23},
3040 issn = {1476-1122},
3041 uri = {<Go to ISI>://000227296700019},
3042 }
3043
3044 @ARTICLE{Shimada1993,
3045 author = {J. Shimada and H. Kaneko and T. Takada},
3046 title = {Efficient Calculations of Coulombic Interactions in Biomolecular
3047 Simulations with Periodic Boundary-Conditions},
3048 journal = {Journal of Computational Chemistry},
3049 year = {1993},
3050 volume = {14},
3051 pages = {867-878},
3052 number = {7},
3053 month = {Jul},
3054 abstract = {To make improved treatments of electrostatic interactions in biomacromolecular
3055 simulations, two possibilities are considered. The first is the
3056 famous particle-particle and particle-mesh (PPPM) method developed
3057 by Hockney and Eastwood, and the second is a new one developed here
3058 in their spirit but by the use of the multipole expansion technique
3059 suggested by Ladd. It is then numerically found that the new PPPM
3060 method gives more accurate results for a two-particle system at
3061 small separation of particles. Preliminary numerical examination
3062 of the various computational methods for a single configuration
3063 of a model BPTI-water system containing about 24,000 particles indicates
3064 that both of the PPPM methods give far more accurate values with
3065 reasonable computational cost than do the conventional truncation
3066 methods. It is concluded the two PPPM methods are nearly comparable
3067 in overall performance for the many-particle systems, although the
3068 first method has the drawback that the accuracy in the total electrostatic
3069 energy is not high for configurations of charged particles randomly
3070 generated.},
3071 annote = {Lh164 Times Cited:27 Cited References Count:47},
3072 issn = {0192-8651},
3073 uri = {<Go to ISI>://A1993LH16400011},
3074 }
3075
3076 @ARTICLE{Skeel2002,
3077 author = {R. D. Skeel and J. A. Izaguirre},
3078 title = {An impulse integrator for Langevin dynamics},
3079 journal = {Molecular Physics},
3080 year = {2002},
3081 volume = {100},
3082 pages = {3885-3891},
3083 number = {24},
3084 month = {Dec 20},
3085 abstract = {The best simple method for Newtonian molecular dynamics is indisputably
3086 the leapfrog Stormer-Verlet method. The appropriate generalization
3087 to simple Langevin dynamics is unclear. An analysis is presented
3088 comparing an 'impulse method' (kick; fluctuate; kick), the 1982
3089 method of van Gunsteren and Berendsen, and the Brunger-Brooks-Karplus
3090 (BBK) method. It is shown how the impulse method and the van Gunsteren-Berendsen
3091 methods can be implemented as efficiently as the BBK method. Other
3092 considerations suggest that the impulse method is the best basic
3093 method for simple Langevin dynamics, with the van Gunsteren-Berendsen
3094 method a close contender.},
3095 annote = {633RX Times Cited:8 Cited References Count:22},
3096 issn = {0026-8976},
3097 uri = {<Go to ISI>://000180297200014},
3098 }
3099
3100 @ARTICLE{Skeel1997,
3101 author = {R. D. Skeel and G. H. Zhang and T. Schlick},
3102 title = {A family of symplectic integrators: Stability, accuracy, and molecular
3103 dynamics applications},
3104 journal = {Siam Journal on Scientific Computing},
3105 year = {1997},
3106 volume = {18},
3107 pages = {203-222},
3108 number = {1},
3109 month = {Jan},
3110 abstract = {The following integration methods for special second-order ordinary
3111 differential equations are studied: leapfrog, implicit midpoint,
3112 trapezoid, Stormer-Verlet, and Cowell-Numerov. We show that all
3113 are members, or equivalent to members, of a one-parameter family
3114 of schemes. Some methods have more than one common form, and we
3115 discuss a systematic enumeration of these forms. We also present
3116 a stability and accuracy analysis based on the idea of ''modified
3117 equations'' and a proof of symplecticness. It follows that Cowell-Numerov
3118 and ''LIM2'' (a method proposed by Zhang and Schlick) are symplectic.
3119 A different interpretation of the values used by these integrators
3120 leads to higher accuracy and better energy conservation. Hence,
3121 we suggest that the straightforward analysis of energy conservation
3122 is misleading.},
3123 annote = {We981 Times Cited:30 Cited References Count:35},
3124 issn = {1064-8275},
3125 uri = {<Go to ISI>://A1997WE98100012},
3126 }
3127
3128 @ARTICLE{Tao2005,
3129 author = {Y. G. Tao and W. K. {den Otter} and J. T. Padding and J. K. G. Dhont
3130 and W. J. Briels},
3131 title = {Brownian dynamics simulations of the self- and collective rotational
3132 diffusion coefficients of rigid long thin rods},
3133 journal = {Journal of Chemical Physics},
3134 year = {2005},
3135 volume = {122},
3136 pages = {-},
3137 number = {24},
3138 month = {Jun 22},
3139 abstract = {Recently a microscopic theory for the dynamics of suspensions of long
3140 thin rigid rods was presented, confirming and expanding the well-known
3141 theory by Doi and Edwards [The Theory of Polymer Dynamics (Clarendon,
3142 Oxford, 1986)] and Kuzuu [J. Phys. Soc. Jpn. 52, 3486 (1983)]. Here
3143 this theory is put to the test by comparing it against computer
3144 simulations. A Brownian dynamics simulation program was developed
3145 to follow the dynamics of the rods, with a length over a diameter
3146 ratio of 60, on the Smoluchowski time scale. The model accounts
3147 for excluded volume interactions between rods, but neglects hydrodynamic
3148 interactions. The self-rotational diffusion coefficients D-r(phi)
3149 of the rods were calculated by standard methods and by a new, more
3150 efficient method based on calculating average restoring torques.
3151 Collective decay of orientational order was calculated by means
3152 of equilibrium and nonequilibrium simulations. Our results show
3153 that, for the currently accessible volume fractions, the decay times
3154 in both cases are virtually identical. Moreover, the observed decay
3155 of diffusion coefficients with volume fraction is much quicker than
3156 predicted by the theory, which is attributed to an oversimplification
3157 of dynamic correlations in the theory. (c) 2005 American Institute
3158 of Physics.},
3159 annote = {943DN Times Cited:3 Cited References Count:26},
3160 issn = {0021-9606},
3161 uri = {<Go to ISI>://000230332400077},
3162 }
3163
3164 @BOOK{Tolman1979,
3165 title = {The Principles of Statistical Mechanics},
3166 publisher = {Dover Publications, Inc.},
3167 year = {1979},
3168 author = {R.~C. Tolman},
3169 address = {New York},
3170 chapter = {2},
3171 pages = {19-22},
3172 }
3173
3174 @ARTICLE{Tu1995,
3175 author = {K. Tu and D. J. Tobias and M. L. Klein},
3176 title = {Constant pressure and temperature molecular dynamics simulation of
3177 a fully hydrated liquid crystal phase dipalmitoylphosphatidylcholine
3178 bilayer},
3179 journal = {Biophysical Journal},
3180 year = {1995},
3181 volume = {69},
3182 pages = {2558-2562},
3183 number = {6},
3184 month = {Dec},
3185 abstract = {We report a constant pressure and temperature molecular dynamics simulation
3186 of a fully hydrated liquid crystal (L(alpha) phase bilayer of dipalmitoylphosphatidylcholine
3187 at 50 degrees C and 28 water molecules/lipid. We have shown that
3188 the bilayer is stable throughout the 1550-ps simulation and have
3189 demonstrated convergence of the system dimensions. Several important
3190 aspects of the bilayer structure have been investigated and compared
3191 favorably with experimental results. For example, the average positions
3192 of specific carbon atoms along the bilayer normal agree well with
3193 neutron diffraction data, and the electron density profile is in
3194 accord with x-ray diffraction results. The hydrocarbon chain deuterium
3195 order parameters agree reasonably well with NMR results for the
3196 middles of the chains, but the simulation predicts too much order
3197 at the chain ends. In spite of the deviations in the order parameters,
3198 the hydrocarbon chain packing density appears to be essentially
3199 correct, inasmuch as the area/lipid and bilayer thickness are in
3200 agreement with the most refined experimental estimates. The deuterium
3201 order parameters for the glycerol and choline groups, as well as
3202 the phosphorus chemical shift anisotropy, are in qualitative agreement
3203 with those extracted from NMR measurements.},
3204 annote = {Tv018 Times Cited:108 Cited References Count:34},
3205 issn = {0006-3495},
3206 uri = {<Go to ISI>://A1995TV01800037},
3207 }
3208
3209 @ARTICLE{Tuckerman1992,
3210 author = {M. Tuckerman and B. J. Berne and G. J. Martyna},
3211 title = {Reversible Multiple Time Scale Molecular-Dynamics},
3212 journal = {Journal of Chemical Physics},
3213 year = {1992},
3214 volume = {97},
3215 pages = {1990-2001},
3216 number = {3},
3217 month = {Aug 1},
3218 abstract = {The Trotter factorization of the Liouville propagator is used to generate
3219 new reversible molecular dynamics integrators. This strategy is
3220 applied to derive reversible reference system propagator algorithms
3221 (RESPA) that greatly accelerate simulations of systems with a separation
3222 of time scales or with long range forces. The new algorithms have
3223 all of the advantages of previous RESPA integrators but are reversible,
3224 and more stable than those methods. These methods are applied to
3225 a set of paradigmatic systems and are shown to be superior to earlier
3226 methods. It is shown how the new RESPA methods are related to predictor-corrector
3227 integrators. Finally, we show how these methods can be used to accelerate
3228 the integration of the equations of motion of systems with Nose
3229 thermostats.},
3230 annote = {Je891 Times Cited:680 Cited References Count:19},
3231 issn = {0021-9606},
3232 uri = {<Go to ISI>://A1992JE89100044},
3233 }
3234
3235 @BOOK{Varadarajan1974,
3236 title = {Lie groups, Lie algebras, and their representations},
3237 publisher = {Prentice-Hall},
3238 year = {1974},
3239 author = {V.S. Varadarajan},
3240 address = {New York},
3241 }
3242
3243 @ARTICLE{Vincent1995,
3244 author = {J. J. Vincent and K. M. Merz},
3245 title = {A Highly Portable Parallel Implementation of Amber4 Using the Message-Passing
3246 Interface Standard},
3247 journal = {Journal of Computational Chemistry},
3248 year = {1995},
3249 volume = {16},
3250 pages = {1420-1427},
3251 number = {11},
3252 month = {Nov},
3253 abstract = {We have implemented a portable parallel version of the macromolecular
3254 modeling package AMBER4. The message passing paradigm was used.
3255 All message passing constructs are compliant with the Message Passing
3256 Interface (MPI) standard. The molecular dynamics/minimization module
3257 MINMD and the free-energy perturbation module Gibbs have been implemented
3258 in parallel on a number of machines, including a Gray T3D, an IBM
3259 SP1/SP2, and a collection of networked workstations. In addition,
3260 the code has been tested with an MPI implementation from Argonne
3261 National Laboratories/Mississippi State University which runs on
3262 many parallel machines. The goal of this work is to decrease the
3263 amount of time required to perform molecular dynamics simulations.
3264 Performance results for a Lipid bilayer molecular dynamics simulation
3265 on a Gray T3D, an IBM SP1/SPZ and a Gray C90 are compared. (C) 1995
3266 by John Wiley & Sons, Inc.},
3267 annote = {Ta403 Times Cited:16 Cited References Count:23},
3268 issn = {0192-8651},
3269 uri = {<Go to ISI>://A1995TA40300009},
3270 }
3271
3272 @ARTICLE{Wegener1979,
3273 author = {W.~A. Wegener, V.~J. Koester and R.~M. Dowben},
3274 title = {A general ellipsoid can not always serve as a modle for the rotational
3275 diffusion properties of arbitrary shaped rigid molecules},
3276 journal = {Proc. Natl. Acad. Sci.},
3277 year = {1979},
3278 volume = {76},
3279 pages = {6356-6360},
3280 number = {12},
3281 }
3282
3283 @ARTICLE{Wilson2006,
3284 author = {G.~V. Wilson },
3285 title = {Where's the Real Bottleneck in Scientific Computing?},
3286 journal = {American Scientist},
3287 year = {2006},
3288 volume = {94},
3289 }
3290
3291 @ARTICLE{Withers2003,
3292 author = {I. M. Withers},
3293 title = {Effects of longitudinal quadrupoles on the phase behavior of a Gay-Berne
3294 fluid},
3295 journal = {Journal of Chemical Physics},
3296 year = {2003},
3297 volume = {119},
3298 pages = {10209-10223},
3299 number = {19},
3300 month = {Nov 15},
3301 abstract = {The effects of longitudinal quadrupole moments on the formation of
3302 liquid crystalline phases are studied by means of constant NPT Monte
3303 Carlo simulation methods. The popular Gay-Berne model mesogen is
3304 used as the reference fluid, which displays the phase sequences
3305 isotropic-smectic A-smectic B and isotropic-smectic B at high (T*=2.0)
3306 and low (T*=1.5) temperatures, respectively. With increasing quadrupole
3307 magnitude the smectic phases are observed to be stabilized with
3308 respect to the isotropic liquid, while the smectic B is destabilized
3309 with respect to the smectic A. At the lower temperature, a sufficiently
3310 large quadrupole magnitude results in the injection of the smectic
3311 A phase into the phase sequence and the replacement of the smectic
3312 B phase by the tilted smectic J phase. The nematic phase is also
3313 injected into the phase sequence at both temperatures considered,
3314 and ultimately for sufficiently large quadrupole magnitudes no coherent
3315 layered structures were observed. The stabilization of the smectic
3316 A phase supports the commonly held belief that, while the inclusion
3317 of polar groups is not a prerequisite for the formation of the smectic
3318 A phase, quadrupolar interactions help to increase the temperature
3319 and pressure range for which the smectic A phase is observed. The
3320 quality of the layered structure is worsened with increasing quadrupole
3321 magnitude. This behavior, along with the injection of the nematic
3322 phase into the phase sequence, indicate that the general tendency
3323 of the quadrupolar interactions is to destabilize the layered structure.
3324 A pressure dependence upon the smectic layer spacing is observed.
3325 This behavior is in much closer agreement with experimental findings
3326 than has been observed previously for nonpolar Gay-Berne and hard
3327 spherocylinder models. (C) 2003 American Institute of Physics.},
3328 annote = {738EF Times Cited:3 Cited References Count:43},
3329 issn = {0021-9606},
3330 uri = {<Go to ISI>://000186273200027},
3331 }
3332
3333 @ARTICLE{Wolf1999,
3334 author = {D. Wolf and P. Keblinski and S. R. Phillpot and J. Eggebrecht},
3335 title = {Exact method for the simulation of Coulombic systems by spherically
3336 truncated, pairwise r(-1) summation},
3337 journal = {Journal of Chemical Physics},
3338 year = {1999},
3339 volume = {110},
3340 pages = {8254-8282},
3341 number = {17},
3342 month = {May 1},
3343 abstract = {Based on a recent result showing that the net Coulomb potential in
3344 condensed ionic systems is rather short ranged, an exact and physically
3345 transparent method permitting the evaluation of the Coulomb potential
3346 by direct summation over the r(-1) Coulomb pair potential is presented.
3347 The key observation is that the problems encountered in determining
3348 the Coulomb energy by pairwise, spherically truncated r(-1) summation
3349 are a direct consequence of the fact that the system summed over
3350 is practically never neutral. A simple method is developed that
3351 achieves charge neutralization wherever the r(-1) pair potential
3352 is truncated. This enables the extraction of the Coulomb energy,
3353 forces, and stresses from a spherically truncated, usually charged
3354 environment in a manner that is independent of the grouping of the
3355 pair terms. The close connection of our approach with the Ewald
3356 method is demonstrated and exploited, providing an efficient method
3357 for the simulation of even highly disordered ionic systems by direct,
3358 pairwise r(-1) summation with spherical truncation at rather short
3359 range, i.e., a method which fully exploits the short-ranged nature
3360 of the interactions in ionic systems. The method is validated by
3361 simulations of crystals, liquids, and interfacial systems, such
3362 as free surfaces and grain boundaries. (C) 1999 American Institute
3363 of Physics. [S0021-9606(99)51517-1].},
3364 annote = {189PD Times Cited:70 Cited References Count:34},
3365 issn = {0021-9606},
3366 uri = {<Go to ISI>://000079913000008},
3367 }
3368
3369 @ARTICLE{Yoshida1990,
3370 author = {H. Yoshida},
3371 title = {Construction of Higher-Order Symplectic Integrators},
3372 journal = {Physics Letters A},
3373 year = {1990},
3374 volume = {150},
3375 pages = {262-268},
3376 number = {5-7},
3377 month = {Nov 12},
3378 annote = {Ej798 Times Cited:492 Cited References Count:9},
3379 issn = {0375-9601},
3380 uri = {<Go to ISI>://A1990EJ79800009},
3381 }
3382
3383 @Article{Blum1972,
3384 author = {L. Blum and A.~J. Torruella},
3385 title = {Computer simulations of bilayer membranes: Self-assembly and interfacial tension},
3386 journal = {Journal of Chemical Physics},
3387 year = 1972,
3388 volume = 56,
3389 number = 1,
3390 pages = {303-309}
3391 }
3392
3393 @Article{Stone1978,
3394 author = {A.~J. Stone},
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