Results 71 to 80 of about 21,926 (256)

APPLICATION OF GRAPH THEORY TO BIOLOGICAL PROBLEMS

Studia Universitatis Babes-Bolyai Chemia, 2016
In this paper, we investigate application of graph theory to some biological problems, specially reconstructing strings based on information about their substrings and sequence comparison by using overlap graphs and also weighted directed graph.
Nafiseh JAFARZADEH, Ali IRANMANESH
doaj  

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

Consensus over Weighted Directed Graphs: A Robustness Perspective

CoRR, 2016
The present paper investigates the robustness of the consensus protocol over weighted directed graphs using the Nyquist criterion. The limit to which a single weight can vary, while consensus among the agents can be achieved, is explicitly derived. It is shown that even with a negative weight on one of the edges, consensus may be achieved.
Dwaipayan Mukherjee, Daniel Zelazo
openaire   +2 more sources

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

FEBS 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, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source

YIPFα1A expression is regulated by multilayered molecular mechanisms

FEBS Open Bio, EarlyView.
YIPFα1A, a five‐pass Golgi protein, is regulated at multiple layers. (1) Rare‐codon enrichment drives translation‐coupled mRNA decay. (2) A proximal 3′‐UTR element stabilizes mRNA. (3) A distal 3′‐UTR element included by alternate poly(A) site usage represses translation, which can be overridden by the proximal 3′‐UTR element.
Tokio Takaji, Yurika Nakanishi, Nobuhiro Nakamura   +2 more
wiley   +1 more source

On an asymptotic optimization problem in finite, directed, weighted graphs

Information and Control, 1968
This paper is concerned with finite, directed, branch-weighted graphs, where each weight is a real number bearing the connotation of “payoff.” The “average payoff” of a k-branch path is defined as the sum of the weights along this path divided by k. It is shown that, as k approaches infinity, the maximum average payoff obtainable with paths initiating ...
Irving L. Traiger, Arthur Gill
openaire   +1 more source

Cyclic azapeptide CD36 ligand attenuates cardiac injury and reduces long‐chain fatty acid accumulation after myocardial ischemia–reperfusion in mice

FEBS Open Bio, EarlyView.
In a murine model of myocardial ischemia and reperfusion (MI/R), the CD36 azapeptide ligand MPE‐298 reduces cardiac injury and transiently lowers left ventricular long‐chain fatty acids (LCFAs) accumulation 3 h after reperfusion, accompanied by a decrease of oxidative stress and inflammation‐associated genes' expression in the heart and adipose tissue.
Jade Gauvin, Naghme Radmannia, David N. Huynh, Liliane Ménard, Caroline Daneault, Maïté Veilleux, Ahsanullah Ahsanullah, André C. Carpentier, William D. Lubell, Matthieu Ruiz, Huy Ong, Sylvie Marleau, Simon‐Pierre Gravel   +12 more
wiley   +1 more source

Semi-Local Integration Measure for Directed Graphs

Mathematics
Directed and weighted graphs can be used for many real-world applications to model and analyse the quality and structure of communication within the system, the distribution and flow of information, and various resources, dependencies, resilience, etc ...
Tajana Ban Kirigin, Sanda Bujačić Babić   +1 more
doaj   +1 more source

Finding shortest non-trivial cycles in directed graphs on surfaces

Journal of Computational Geometry, 2016
Let $D$ be a weighted directed graph cellularly embedded in a surface of genus $g$, orientable or not, possibly with boundary.  We describe algorithms to compute shortest non-contractible and shortest surface non-separating cycles in $D$, generalizing ...
Sergio Cabello, Éric Colin de Verdière, Francis Lazarus   +2 more
doaj   +1 more source

Perception of Polynomial for Weighted Directed Graph

Journal of Mathematics Research, 2019
In this paper we will apply a polynomial for directed weighted graph. We will introduce notion of deletion and contraction in directed weighted graph. Some examples and propositions will be illustrated.
openaire   +2 more sources