Results 1 to 10 of about 1,202,304 (236)

On the strong beta-number of galaxies with three and four components [PDF]

open access: goldAKCE International Journal of Graphs and Combinatorics, 2020
The beta-number of a graph is the smallest positive integer for which there exists an injective function such that each is labeled and the resulting set of edge labels is for some positive integer . The beta-number of is if there exists no such integer .
Rikio Ichishima   +2 more
doaj   +4 more sources

On the Beta-Number of Forests with Isomorphic Components

open access: yesDiscussiones Mathematicae Graph Theory, 2018
The beta-number, β (G), of a graph G is defined to be either the smallest positive integer n for which there exists an injective function f : V (G) → {0, 1, . . .
Ichishima Rikio   +3 more
doaj   +2 more sources

Mowing Modulates the Biotic Filter of Expansive Species [PDF]

open access: yesEcology and Evolution
Disturbance and competition are two strong drivers of plant community formation. Disturbances like mowing in semi‐natural grasslands enhance taxonomic and phylogenetic diversity by preventing the establishment of expansive species, which act as a biotic ...
Alessandro Bricca   +2 more
doaj   +2 more sources

On the beta-number of linear forests with an even number of components

open access: yesAKCE International Journal of Graphs and Combinatorics, 2018
The beta-number of a graph is the smallest positive integer for which there exists an injective function such that each is labeled and the resulting set of edge labels is for some positive integer . The beta-number of is , otherwise.
Rikio Ichishima, Akito Oshima
doaj   +2 more sources

Structural features of proteins as reflected by statistical scaling laws [PDF]

open access: yesJournal of the Serbian Chemical Society, 2008
Within this paper, statistical scaling laws for the radius of gyration with the residues number, the surface area with the probe radii and the backbone length with the interval of residues for a set of 60 proteins are revealed.
LAURA PITULICE   +2 more
doaj   +3 more sources

Effects of alpha-mangostin on memory senescence induced by high glucose in human umbilical vein endothelial cells [PDF]

open access: yesIranian Journal of Basic Medical Sciences, 2020
Objective(s): Hyperglycemia induces cellular senescence in various body cells, such as vascular endothelial cells. Since the vessels are highly distributed in the body and nourish all tissues, vascular damages cause diabetes complications such as kidney ...
Hourieh Tousian   +2 more
doaj   +1 more source

Analysis of changes in electrogenesis in schizoprenia using computer electroencephalography

open access: yesJournal of Education, Health and Sport, 2020
Rationale. Psychiatrists do not have objective methods for identifying the brain disorders responsible for mental illness, which prevents timely diagnosis.
B. A. Lobasyuk, L. B. Bartsevich
doaj   +1 more source

Role of Endometrial Receptivity Array for Implantation failure in In-Vitro Fertilization & Intracytoplasmic Sperm Injection

open access: yesBioMedica, 2021
Background & Objective: Assisted reproductive technique is an evolving field with many recent advances. The success rate is low in developing countries where financial concerns prevail predominantly.
Rabia Nafees   +5 more
doaj   +1 more source

Long-range memory in internal and forced dynamics of millennium-long climate model simulations [PDF]

open access: yesEarth System Dynamics, 2014
Northern Hemisphere (NH) temperature records from a palaeoclimate reconstruction and a number of millennium-long climate model experiments are investigated for long-range memory (LRM).
L. Østvand   +4 more
doaj   +1 more source

Applying the Clustering and UTADIS Models to form an Investment Portfolio [PDF]

open access: yesتحقیقات مالی, 2018
Objective: The aim of this study is to propose a synthetic approach including  Clustering and UTADIS models to form a profitable investment portfolio.
Mohammad Reza Mehrgan   +2 more
doaj   +1 more source

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