Results 91 to 100 of about 318,514 (285)

Chameleon sequences reveal structural effects in proteins representing micelle‐like distribution of hydrophobicity

open access: yesFEBS Open Bio, EarlyView.
Amino acids sequence of two different proteins with the same sequence (chameleon sequence—black boxes) represent in 3D structure of the proteins different secondary structures: HHHH—helical and BBB—Beta‐structural. The chains folded in water environment adopt different III‐order structures in which the chameleon fragments appear to adopt similar status
Irena Roterman   +4 more
wiley   +1 more source

Random Attractors of Stochastic Three-Component Reversible Gray-Scott System on Unbounded Domains

open access: yesAbstract and Applied Analysis, 2012
The existence of a pullback random attractor is established for a stochastic three-component reversible Gray-Scott system on unbounded domains. The Gray-Scott system is recast as a random dynamical system and asymptotic compactness which is illustrated ...
Anhui Gu
doaj   +1 more source

Mean-square random dynamical systems

open access: yesJournal of Differential Equations, 2012
Two-parameter semigroups operating on the space \(L^2(\Omega,P;\mathbb R^d)\) of square-integrable \(\mathbb R^d\)-valued random variables are introduced in order to investigate random or stochastic differential equations with non-local coefficients. Assuming exponential contraction of differences of trajectories in the course of time, uniform in the ...
Kloeden, Peter E., Lorenz, Thomas
openaire   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

open access: yesFEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill   +4 more
wiley   +1 more source

RANDOMLY GENERATED FUZZY DISCRETE DYNAMICAL SYSTEMS [PDF]

open access: yesFiabilitate şi Durabilitate
This paper aims to introduce the concept of a fuzzy discrete dynamical system as a fuzzy subgroupoid of X×Z×X, with Z representing the group of integer numbers.
Mădălina Roxana BUNECI
doaj  

A Free Energy Principle for Biological Systems

open access: yesEntropy, 2012
This paper describes a free energy principle that tries to explain the ability of biological systems to resist a natural tendency to disorder. It appeals to circular causality of the sort found in synergetic formulations of self-organization (e.g., the ...
Friston Karl
doaj   +1 more source

Systemic dysregulation of apolipoproteins in amyotrophic lateral sclerosis serum

open access: yesFEBS Open Bio, EarlyView.
Amyotrophic lateral sclerosis (ALS) is a fatal disease that damages motor neurons. This study found that people with ALS show significant changes in blood fats and the proteins that carry them. Several apolipoproteins were higher, lipid balances were altered, and normal protein–lipid relationships were disrupted.
Finula I. Isik   +6 more
wiley   +1 more source

Continuous random dynamical systems

open access: yesJournal of Mathematical Analysis and Applications, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Are chaotic systems dynamically random? [PDF]

open access: yesPhysics Letters A, 1989
Abstract Physical systems can be characterized by several types of complexity measures which indicate the computational resources employed. With respect to these measures, several chaos classes may be distinguished. These exists a constructive approach to random physical motion which operates with computable initial values and deterministic evolution
openaire   +1 more source

Large‐scale bidirectional arrayed genetic screens identify OXR1 and EMC4 as modifiers of αSynuclein aggregation

open access: yesFEBS Open Bio, EarlyView.
Activation of the mitochondrial protein OXR1 increases pSyn129 αSynuclein aggregation by lowering ATP levels and altering mitochondrial membrane potential, particularly in response to MSA‐derived fibrils. In contrast, ablation of the ER protein EMC4 enhances autophagic flux and lysosomal clearance, broadly reducing α‐synuclein aggregates.
Sandesh Neupane   +11 more
wiley   +1 more source

Home - About - Disclaimer - Privacy