Results 81 to 90 of about 18,692 (262)
Differences in boundary behavior in the 3D vertex and Voronoi models.
PLoS Computational BiologyAn important open question in the modeling of biological tissues is how to identify the right scale for coarse-graining, or equivalently, the right number of degrees of freedom.
Elizabeth Lawson-Keister +4 more
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Bounding the feedback vertex number of digraphs in terms of vertex degrees
Discrete Applied Mathematics, 2011 The Turan bound is a famous result in graph theory, which relates the independence number of an undirected graph to its edge density. Also the Caro-Wei inequality, which gives a more refined bound in terms of the vertex degree sequence of a graph, might be regarded today as a classical result. We show how these statements can be generalized to directed
openaire +3 more sources
A Biomimetic Buffering Hydrogel Scaffold for Long‐Term Culture of Patient‐Derived Tumor Organoids
Advanced Healthcare Materials, EarlyView.A biomimetic fibrous buffering hydrogel controls the local acidification at the tumoroid/hydrogel interface at the physiologically relevant level over 21‐day culture. The buffering effect promotes cancer cell proliferation in the tumoroids and supports the structural integrity and mechanical properties of the hydrogel scaffold over long‐term tumoroid ...
Elizaveta Gusarova +7 more
wiley +1 more source
A case of limit behaviour of vertex degrees in conditional configuration graphs
Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2017 We consider configuration graphs with N vertices. The degrees of the verticesare independent identically distributed random variables according to power-lawdistribution with positive parameter .
Yury Pavlov
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Advanced Healthcare Materials, EarlyView.This review examines how emerging enabling technologies enhance the physiological relevance, scalability, and reproducibility of kidney organoids, while advanced analytical approaches support model validation and deepen mechanistic insight into nephrotoxicity.
Helen Kearney +3 more
wiley +1 more source
Degree conditions for vertex switching reconstruction
Discrete Mathematics, 1996 This paper is related to the \(s\)-vertex switching reconstruction problem. If \(G= G(V,E)\) is a graph and \(U \subset V\), the switching \(G_U\) of \(G\) is the graph obtained from \(G\) by replacing all the edges between \(U\) and \(V \backslash U\) with the nonedges.
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Bioengineered 3D hPSC‐Cholangiocyte Ducts With Physiological Signals for Biliary Disease Modeling
Advanced Healthcare Materials, EarlyView.Tian and colleagues generated a bioengineered bile duct from human pluripotent stem cell (hPSC)‐derived intrahepatic cholangiocytes within a high‐throughput, 384‐well platform to systematically examine the influence of biliary physiological signals including fluid flow, stromal cells and bile acids, and models intrahepatic biliary disease progression ...
Britney Tian +10 more
wiley +1 more source
Theta expansion of first massive vertex operator in pure spinor
Journal of High Energy Physics, 2018 We provide the covariant superspace equations that are sufficient to determine the complete θ expansion of the vertex operator of the open string massive states with (mass)2 = 1/α′ in pure spinor formalism of superstring theory.
Subhroneel Chakrabarti +2 more
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Advanced Healthcare Materials, EarlyView.To dissect how mechanical forces influence intestinal physiology, we developed a stretchable 3D colon‐on‐chip that integrates tunable topography, stiffness and peristalsis‐like motion within a physiologically relevant microenvironment. We showed that stretching is a dominant factor governing epithelial behavior, markedly enhancing proliferation and ...
Moencopi Bernheim‐Dennery +10 more
wiley +1 more source
On leap Zagreb indices of graphs
Communications in Combinatorics and Optimization, 2017 The first and second Zagreb indices of a graph are equal, respectively, to the sum of squares of the vertex degrees, and the sum of the products of the degrees of pairs of adjacent vertices.
A.M. Naji +2 more
doaj +1 more source