Results 41 to 50 of about 11,313,113 (356)

On the Existence of General Factors in Regular Graphs [PDF]

open access: yes, 2012
Let $G$ be a graph, and $H\colon V(G)\to 2^\mathbb{N}$ a set function associated with $G$. A spanning subgraph $F$ of $G$ is called an $H$-factor if the degree of any vertex $v$ in $F$ belongs to the set $H(v)$.
Lu, Hongliang   +2 more
core   +1 more source

Counting Smooth Solutions to the Equation A+B=C [PDF]

open access: yes, 2011
This paper studies integer solutions to the Diophantine equation A+B=C in which none of A, B, C have a large prime factor. We set H(A, B,C) = max(|A|, |B|, |C|), and consider primitive solutions (gcd}(A, B, C)=1) having no prime factor p larger than (log
Lagarias, J. C., Soundararajan, K.
core   +2 more sources

Levels of soluble complement regulators predict severity of COVID-19 symptoms

open access: yesFrontiers in Immunology, 2022
The SARS-CoV-2 virus continues to cause significant morbidity and mortality worldwide from COVID-19. One of the major challenges of patient management is the broad range of symptoms observed.
Anna L. Tierney   +182 more
doaj   +1 more source

H-Factors in Dense Graphs

open access: yesJournal of Combinatorial Theory, Series B, 1996
AbstractThe following asymptotic result is proved. For everyε>0, and for every positive integerh, there exists ann0=n0(ε, h) such that for every graphHwithhvertices and for everyn>n0, any graphGwithhnvertices and with minimum degreed⩾((χ(H)−1)/χ(H)+ε)hncontainsnvertex disjoint copies ofH.
Raphael Yuster, Noga Alon
openaire   +2 more sources

Bounds and Inequalities Relating h-Index, g-Index, e-Index and Generalized Impact Factor [PDF]

open access: yes, 2011
Finding relationships among different indices such as h-index, g-index, e-index, and generalized impact factor is a challenging task. In this paper, we describe some bounds and inequalities relating h-index, g-index, e-index, and generalized impact ...
A Schubert   +12 more
core   +6 more sources

Two human antibodies to a meningococcal serogroup B vaccine antigen enhance binding of complement Factor H by stabilizing the Factor H binding site.

open access: yesPLoS Pathogens, 2021
Microbial pathogens bind host complement regulatory proteins to evade the immune system. The bacterial pathogen Neisseria meningitidis, or meningococcus, binds several complement regulators, including human Factor H (FH).
Nathaniel A Sands, Peter T Beernink
doaj   +1 more source

The Hamilton-Waterloo problem with C8-factors and Cm-factors [PDF]

open access: yes, 2016
In this paper, we almost completely solve the Hamilton-Waterloo problem with C8- factors and Cm-factors where the number of vertices is a multiple of 8m.
arxiv   +1 more source

Dengue virus infection induces complement factor H but protein remains cell-associated, with changes intracellularly and in cell surface binding

open access: yesExploration of Immunology
Aim: Severe dengue is correlated with a decrease in the circulating complement regulator, factor H (FH) and prior work has shown that dengue virus (DENV) infection induces FH mRNA but not FH protein release.
Joshua G. Dubowsky   +5 more
doaj   +1 more source

Amnion epithelial cells are an effective source of factor H and prevent kidney complement deposition in factor H-deficient mice

open access: yesStem Cell Research & Therapy, 2021
Complement factor H (FH) is the main plasma regulator of the alternative pathway of complement. Genetic and acquired abnormalities in FH cause uncontrolled complement activation amplifying, with the consequent accumulation of complement components on the
Federica Casiraghi   +9 more
doaj   +1 more source

Vertex Sparsifiers: New Results from Old Techniques [PDF]

open access: yes, 2014
Given a capacitated graph $G = (V,E)$ and a set of terminals $K \subseteq V$, how should we produce a graph $H$ only on the terminals $K$ so that every (multicommodity) flow between the terminals in $G$ could be supported in $H$ with low congestion, and ...
Andoni A.   +24 more
core   +3 more sources

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