Results 71 to 80 of about 3,933,226 (179)

The Independence Ratio of 4‐Cycle‐Free Planar Graphs

open access: yesJournal of Graph Theory, Volume 112, Issue 2, Page 116-127, June 2026.
ABSTRACT We prove that every n‐vertex planar graph G with no triangle sharing an edge with a 4‐cycle has independence ratio n ∕ α ( G ) ≤ 4 − ε for ε = 1 ∕ 30. This result implies that the same bound holds for 4‐cycle‐free planar graphs and planar graphs with no adjacent triangles and no triangle sharing an edge with a 5‐cycle.
Tom Kelly   +3 more
wiley   +1 more source

Virulent Properties of Russian Bovine Viral Diarrhea Virus Strains in Experimentally Infected Calves

open access: yesScientifica, 2016
The results of experimental study of three noncytopathic and two cytopathic bovine viral diarrhea virus (BVDV) strains isolated from cattle in the Siberian region and belonging to the type 1 (subtypes 1a, 1b, and 1d) have been presented. All investigated
Alexander G. Glotov   +7 more
doaj   +1 more source

The study of anaplasma and ehrlichia genetic variability in parasitic systems in the South-Western Siberia and Ural

open access: yesБюллетень сибирской медицины, 2006
Ehrlichia muris and Anaplasma phagocytophilum DNA were detected using nested PCR among Ixodes persulcatus collected in Novosibirsk, Sverdlovsk and Chelyabinsk regions and in blood samples of small mammals from Novosibirsk and Sverdlovsk re- gions.
V. A. Rar   +5 more
doaj   +1 more source

Solar Wind–Magnetosphere–Ionosphere Coupling Under Extreme External Driving: Characteristics of Dayside Ground Magnetic Disturbances

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract The objective of the present study is to investigate solar wind‐magnetosphere‐ionosphere coupling (SWMIC) under intense external driving in terms of dayside ground magnetic disturbances. Dayside magnetic reconnection drives a region‐1 sense current system, the SWMIC current system.
Shinichi Ohtani
wiley   +1 more source

MODERN METHODS OF LABORATORY RESEARCHES IN EPIDEMIOLOGICAL MONITORING OF YERSINIOSES IN NOVOSIBIRSK REGION. QUALITY CONTROL SYSTEM [PDF]

open access: yes, 2012
The results of yersinioses microbiological monitoring in Novosibirsk Region are presented and introduction of a quality management system in activities of a laboratory of especially dangerous infections is ...
V. G. Malyavin   +5 more
core  

New records of Geometridae and Noctuidae (Insecta: Lepidoptera) from Omsk and  Novosibirsk Regions of Russia

open access: yes, 2021
Nine species of Lepidoptera from the territory of Omsk and Novosibirsk Regions are reported. Four species are new to Omsk Region, among them, Panchrysia ornata (Bremer, 1864), Sympistis campicola Lederer, 1853, Pseudohadena argyllostigma (Varga & Ronkay,
Ivonin, Vadim V.   +7 more
core   +1 more source

Intermolecular Nuclear Spin Hyperpolarization Transfer via Cross‐Relaxation Triggers RASER of Solute Molecules

open access: yesAngewandte Chemie, Volume 138, Issue 19, 4 May 2026.
Radiofrequency amplification by stimulated emission of radiation (RASER) of solutes was achieved via parahydrogen‐induced polarization (PHIP) and polarization transfer from the produced hyperpolarization donors to solutes via the intermolecular nuclear Overhauser effect (NOE).
Ivan A. Trofimov   +8 more
wiley   +1 more source

Columbia Region handbook

open access: yes, 1980
Presents a general overview of the Columbia Region, its organization and its people, and some basic information about the region's fish and wildlife and their management.This archived document is maintained by the State Library of Oregon as part of the ...

core  

Immunogenic and Protective Properties of Recombinant Hemagglutinin of Influenza A (H5N8) Virus

open access: yesVaccines
In this study, we characterized recombinant hemagglutinin (HA) of influenza A (H5N8) virus produced in Chinese hamster ovary cells (CHO-K1s). Immunochemical analysis showed that the recombinant hemagglutinin was recognized by the serum of ferrets ...
Nadezhda B. Rudometova   +18 more
doaj   +1 more source

Artificial Anti-HIV-1 Immunogen Comprising Epitopes of Broadly Neutralizing Antibodies 2F5, 10E8, and a Peptide Mimic of VRC01 Discontinuous Epitope

open access: yesVaccines, 2019
The construction of artificial proteins using conservative B-cell and T-cell epitopes is believed to be a promising approach for a vaccine design against diverse viral infections.
Andrey P. Rudometov   +7 more
doaj   +1 more source

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