Results 61 to 70 of about 1,185,468 (303)
Reciprocal control of viral infection and phosphoinositide dynamics
FEBS Letters, EarlyView.Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley +1 more source
The hull number of strong product graphs
, 2011 For a connected graph G with at least two vertices and S a subset of vertices, the convex hull $[S]_G$ is the smallest convex set containing S. The hull number h(G) is the minimum cardinality among the subsets S of V(G) with $[S]_G = V(G)$.
Santhakumaran, A., Ullas Chandran, S.
core +1 more source
2-Tone Colorings in Graph Products
Discussiones Mathematicae Graph Theory, 2015 A variation of graph coloring known as a t-tone k-coloring assigns a set of t colors to each vertex of a graph from the set {1, . . . , k}, where the sets of colors assigned to any two vertices distance d apart share fewer than d colors in common.
Loe Jennifer +3 more
doaj +1 more source
NZ‐flows in strong products of graphs
Journal of Graph Theory, 2010 AbstractWe prove that the strong product G1⊠ G2 of G1 and G2 is ℤ3‐flow contractible if and only if G1⊠ G2 is not T⊠ K2, where T is a tree (we call T⊠ K2 a K4‐tree). It follows that G1⊠ G2 admits an NZ 3 ‐flow unless G1⊠ G2 is a K4 ‐tree. We also give a constructive proof that yields a polynomial algorithm whose output is an NZ 3‐flow if G1⊠ G2 is not ...
Wilfried Imrich +3 more
openaire +3 more sources
FEBS Letters, EarlyView.Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho +3 more
wiley +1 more source
若干运算图的倍乘赋权Harary指标(Multiplicatively weighted Harary index of some graph operations)
Zhejiang Daxue xuebao. Lixue ban, 2017 Recently, ALIZADEH et al proposed a modification of the Harary index in which the contributions of vertex pairs were weighted by the product of their degrees.
WENYanqing(温艳清) +2 more
doaj +1 more source
Fast recognition of direct and strong products
Ars Mathematica Contemporanea, 2014 Summary: This note describes fast algorithms for computing the prime factors of connected, nonbipartite graphs with respect to the direct product, and of connected graphs with respect to the strong product. The complexities are \(O(m \min(n^{2} {\Delta}^{3}))\) for the direct product, and \(O(m\,a(G) \Delta)\) for the strong, where \(n\) is the order ...
Hammack, Richard H., Imrich, Wilfried
openaire +4 more sources
Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?
FEBS Letters, EarlyView.This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes +3 more
wiley +1 more source
Equating Business Value of Innovative Product Ideas [PDF]
, 2009 Organised by: Cranfield UniversityInvesting in new product development crucially depends on the capacity to estimate the business value of the product idea in the very early phases of the development process.
Brad, S.
core
Skew-spectra and skew energy of various products of graphs [PDF]
Transactions on Combinatorics, 2015 Given a graph $G$, let $G^sigma$ be an oriented graph of $G$ with the orientation $sigma$ and skew-adjacency matrix $S(G^sigma)$. Then the spectrum of $S(G^sigma)$ consisting of all the eigenvalues of $S(G^sigma)$ is called the skew-spectrum of $G ...
Xueliang Li, Huishu Lian
doaj