Results 71 to 80 of about 128,488 (305)

Signed double Roman domination in graphs

open access: yesDiscrete Applied Mathematics, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hossein Abdollahzadeh Ahangar   +2 more
openaire   +3 more sources

Climate Change Agricultural Comparative Advantage and the US Trade Balance

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Current science indicates that warming and elevated atmospheric CO2 will have ambiguous results for crop productivity depending on crop type and geographic location, whereas increased heat stress makes livestock and human labor less productive.
Elizabeth A. Fraysse   +2 more
wiley   +1 more source

3D investigation and modeling of the geometric effects on porosity in packed beds

open access: yesAIChE Journal, EarlyView.
Abstract In porous beds, physical boundaries restrict particle arrangement, leading to inhomogeneous porosity. This paper reports on the porosity profiles that are the result of geometric effects on monodisperse packed beds in cylindrical and cubic arrangements. Special focus is given to the influence of edges and corners in cubic geometries.
Bastian Oldach   +3 more
wiley   +1 more source

Roman domination excellent graphs: trees

open access: yesCommunications in Combinatorics and Optimization, 2016
A Roman dominating function (RDF) on a graph $G = (V, E)$ is a labeling $f : V \rightarrow \{0, 1, 2\}$ such that every vertex with label $0$ has a neighbor with label $2$. The weight of $f$ is the value $f(V) = _{v\in V} f(v)$. The Roman domination number, $ _R(G)$, of $G$ is the minimum weight of an RDF on $G$. An RDF of minimum weight is called a
openaire   +3 more sources

The Distance Roman Domination Numbers of Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2013
Let k be a positive integer, and let G be a simple graph with vertex set V (G). A k-distance Roman dominating function on G is a labeling f : V (G) → {0, 1, 2} such that for every vertex with label 0, there is a vertex with label 2 at distance at most k ...
Aram Hamideh   +2 more
doaj   +1 more source

Advanced Experiment Design Strategies for Drug Development

open access: yesAdvanced Intelligent Discovery, EarlyView.
Wang et al. analyze 592 drug development studies published between 2020 and 2024 that applied design of experiments methodologies. The review surveys both classical and emerging approaches—including Bayesian optimization and active learning—and identifies a critical gap between advanced experimental strategies and their practical adoption in ...
Fanjin Wang   +3 more
wiley   +1 more source

New Insights Into Changes in the DNA Methylation Pattern of the SHOX Gene in Patients With Léri‐Weill Dyschondrosteosis

open access: yesAmerican Journal of Medical Genetics Part A, EarlyView.
ABSTRACT SHOX gene haploinsufficiency is associated with Léri‐Weill dyschondrosteosis (LWD) or idiopathic short stature (ISS) and could be caused by the structural and point mutations in the coding region and by the deletions in SHOX gene regulatory sequences. The role of the duplications in regulatory sequences is ambivalent.
Valeriia Kopytko   +3 more
wiley   +1 more source

Weak signed Roman k-domination in digraphs [PDF]

open access: yesOpuscula Mathematica
Let \(k\geq 1\) be an integer, and let \(D\) be a finite and simple digraph with vertex set \(V(D)\). A weak signed Roman \(k\)-dominating function (WSRkDF) on a digraph \(D\) is a function \(f \colon V(D)\rightarrow \{-1,1,2\}\) satisfying the condition
Lutz Volkmann
doaj   +1 more source

Dominating the Direct Product of Two Graphs through Total Roman Strategies

open access: yesMathematics, 2020
Given a graph G without isolated vertices, a total Roman dominating function for G is a function f:V(G)→{0,1,2} such that every vertex u with f(u)=0 is adjacent to a vertex v with f(v)=2, and the set of vertices with positive labels induces a graph of ...
Abel Cabrera Martínez   +3 more
doaj   +1 more source

Quasi-total Roman Domination in Graphs [PDF]

open access: yesResults in Mathematics, 2019
15 ...
Suitberto Cabrera García   +2 more
openaire   +6 more sources

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