Computer Simulation (Latest Articles)

Latest indexed articles for 'Computer Simulation'

Articles 171 to 180 of 200:

Simple cell response properties imply receptive field structure: balanced Gabor and/or bandlimited field functions.

30 Aug 2009 The classical receptive fields of simple cells in mammalian primary visual cortex demonstrate three cardinal response properties: (1) they do not respond to stimuli that are spatially homogeneous; (2) they respond best to stimuli in a preferred ...
rec_pub_19721693-simple-cell-response-properties-imply-receptive-field-structure.htm

Polarization singularities of Gaussian vortex beams diffracted at a half-plane screen beyond the paraxial approximation.

30 Aug 2009 On the basis of the vector Rayleigh-Sommerfeld diffraction integrals, the analytical expression for Gaussian vortex beams diffracted at a half-plane screen beyond the paraxial approximation is derived and used to study the polarization singularities ...
rec_pub_19721680-polarization-singularities-gaussian-vortex-beams-diffracted-half.htm

Subspace-based optimization method for reconstructing extended scatterers: transverse electric case.

30 Aug 2009 The subspace-based optimization method is generalized to the transverse electric (TE) case for reconstructing the relative-permittivity profiles of extended scatterers. The essence of the subspace-based optimization method is that part of the ...
rec_pub_19721676-subspace-based-optimization-method-reconstructing-extended-scatterers.htm

Self-guided Langevin dynamics study of regulatory interactions in NtrC.

30 Aug 2009 Multiple self-guided Langevin dynamics (SGLD) simulations were performed to examine structural and dynamical properties of the receiver domain of nitrogen regulatory protein C (NtrC(r)). SGLD and MD simulations of the phosphorylated active form ...
rec_pub_19384996-self-guided-langevin-dynamics-study-regulatory-interactions-ntrc.htm

Dynamics of beta3 integrin I-like and hybrid domains: insight from simulations on the mechanism of transition between open and closed forms.

30 Aug 2009 The conformational dynamics of the I-like and Hybrid domains from the beta3 integrin headpiece were studied by molecular dynamics simulation and normal mode analysis. Crystallographic structures of integrins show that the integrin headpiece can ...
rec_pub_19350618-dynamics-beta3-integrin-like-hybrid-domains-insight-simulations.htm

Identification of protein functional surfaces by the concept of a split pocket.

30 Aug 2009 The function of a protein is often fulfilled via molecular interactions on its surfaces, so identifying the functional surface(s) of a protein is helpful for understanding its function. Here, we introduce the concept of a split pocket, which is a ...
rec_pub_19326458-identification-protein-functional-surfaces-concept-split-pocket.htm

Building and assessing atomic models of proteins from structural templates: learning and benchmarks.

30 Aug 2009 One approach to predict a protein fold from a sequence (a target) is based on structures of related proteins that are used as templates. We present an algorithm that examines a set of candidates for templates, builds from each of the templates an ...
rec_pub_19326457-building-assessing-atomic-models-proteins-structural-templates.htm

Complexes of HIV-1 integrase with HAT proteins: multiscale models, dynamics, and hypotheses on allosteric sites of inhibition.

30 Aug 2009 A new and very promising strategy for HIV drug discovery consists in blocking the multiple functional interactions between HIV-1 integrase (IN) and its cellular cofactors. At present, this line of action is hindered by the absence of ...
rec_pub_19306343-complexes-hiv-1-integrase-hat-proteins-multiscale-models-dynamics.htm

Graphical models of protein-protein interaction specificity from correlated mutations and interaction data.

30 Aug 2009 Protein-protein interactions are mediated by complementary amino acids defining complementary surfaces. Typically not all members of a family of related proteins interact equally well with all members of a partner family; thus analysis of the ...
rec_pub_19306342-graphical-models-protein-protein-interaction-specificity-correlated.htm

Free-energy profiles for ions in the influenza M2-TMD channel.

30 Aug 2009 M(2) transmembrane domain channel (M(2)-TMD) permeation properties are studied using molecular dynamics simulations of M(2)-TMD (1NYJ) embedded in a lipid bilayer (DMPC) with 1 mol/kg NaCl or KCl saline solution. This study allows examination of ...
rec_pub_19296508-free-energy-profiles-ions-influenza-m2-tmd-channel.htm

Results: [1-10] [11-20] [21-30] [31-40] [41-50] [51-60] [61-70] [71-80] [81-90] [91-100] [101-110] [111-120] [121-130] [131-140] [141-150] [151-160] [161-170] [171-180] [181-190] [191-200]