Results 81 to 90 of about 1,397,008 (283)

Relating the total domination number and the annihilation number of cactus graphs and block graphs

open access: yesArs Math. Contemp., 2018
The total domination number γ t ( G ) of a graph G is the order of a smallest set D  ⊆  V ( G ) such that each vertex of G is adjacent to some vertex in D .
Csilla Bujtás, M. Jakovac
semanticscholar   +1 more source

Total domination number of grid graphs

open access: yesDiscrete Applied Mathematics, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

On the total domination number of cross products of graphs

open access: yesDiscrete Mathematics, 2008
We give lower and upper bounds on the total domination number of the cross product of two graphs, γ t(G×H). These bounds are in terms of the total domination number and the maximum degree of the factors and are best possible. We further investigate cross products involving paths and cycles. We determine the exact values of γ t(G×Pn) and γ
Gravier, Sylvain   +2 more
openaire   +4 more sources

The human gut microbiome across the life course

open access: yesFEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero   +4 more
wiley   +1 more source

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

open access: yesFEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai   +4 more
wiley   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Bounds on the 2-domination number in cactus graphs [PDF]

open access: yesOpuscula Mathematica, 2006
A \(2\)-dominating set of a graph \(G\) is a set \(D\) of vertices of \(G\) such that every vertex not in \(S\) is dominated at least twice. The minimum cardinality of a \(2\)-dominating set of \(G\) is the \(2\)-domination number \(\gamma_{2}(G)\).
Mustapha Chellali
doaj  

Total Roman Reinforcement in Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2019
A total Roman dominating function on a graph G is a labeling f : V (G) → {0, 1, 2} such that every vertex with label 0 has a neighbor with label 2 and the subgraph of G induced by the set of all vertices of positive weight has no isolated vertex.
Ahangar H. Abdollahzadeh   +4 more
doaj   +1 more source

Total domination number of the conjunction of graphs

open access: yesDiscrete Mathematics, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

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