Results 31 to 40 of about 266,730 (262)

Surveillance of varicella-induced absenteeism in primary and secondary school students in Minhang District, Shanghai, 2021

open access: yesShanghai yufang yixue, 2023
ObjectiveTo analyze the varicella cases from the illness-induced absenteeism system and the National Notifiable Disease and Reporting System (NNDRS) in primary and secondary school students in Minhang District, determine the characteristics of varicella ...
WANG Zhouyun, CHENG Yuping
doaj   +1 more source

Maximum induced matchings in graphs

open access: yesDiscrete Mathematics, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jiping Liu, Huishan Zhou
openaire   +1 more source

Dynamic target template matching for railway catenary suspension motion detection in wind area

open access: yesInternational Journal of Distributed Sensor Networks, 2018
A dynamic target template matching method was proposed to identify railway catenary suspension movements of wind-induced vibration in wind area. Catenary positioning point was taken as the target template, which was compared with equal-sized image ...
Wei Zhou   +4 more
doaj   +1 more source

Efficient History Matching of Thermally Induced Fractures Using Coupled Geomechanics and Reservoir Simulation

open access: yesEnergies, 2020
Waterflooding is a common recovery method used to maintain reservoir pressure and improve reservoir oil sweep efficiency. However, injecting cold water into a reservoir alters the state of in-situ formation stress and can result in the formation ...
Misfer Almarri
doaj   +1 more source

Dominating induced matchings and other graph parameters

open access: yesAKCE International Journal of Graphs and Combinatorics
A matching M in a graph G is an induced matching if the largest degree of the subgraph of G induced by M is equal to one. A dominating induced matching (DIM) of G is an induced matching that dominates every edge of G. It is well known that, if they exist,
A. Mahmoodi   +3 more
doaj   +1 more source

Effectiveness of early heparin therapy on outcomes in critically ill patients with sepsis-induced coagulopathy

open access: yesFrontiers in Pharmacology, 2023
Background: This study aimed to investigate whether early unfractionated heparin (UFH) administration provides a survival advantage for patients with sepsis-induced coagulopathy (SIC).Methods: Patients hospitalized with sepsis-induced coagulopathy from ...
Jia-Jia Huang   +13 more
doaj   +1 more source

Agroinfiltration Is a Versatile Tool That Facilitates Comparative Analyses of Avr9/Cf-9-Induced and Avr4/Cf-4-Induced Necrosis

open access: yesMolecular Plant-Microbe Interactions, 2000
The avirulence genes Avr9 and Avr4 from the fungal tomato pathogen Cladosporium fulvum encode extracellular proteins that elicit a hypersensitive response when injected into leaves of tomato plants carrying the matching resistance genes, Cf-9 and Cf-4 ...
Renier A. L. Van der Hoorn   +3 more
doaj   +1 more source

Induced matchings

open access: yesDiscrete Applied Mathematics, 1989
An induced matching of a graph G is a vertex induced subgraph of G that is a matching. The author shows that the following decision problem is NP-complete: For a given bipartite graph G and positive integer k, is there an induced matching of size at least k? So the problem of finding a largest induced matching for bipartite graphs is Np-hard.
openaire   +1 more source

Lumped Dissipation Induced Quasi-Phase Matching for Broad and Flat Optical Parametric Processes

open access: yesIEEE Photonics Journal, 2019
Distributed dissipation in optical parametric processes has attracted renewed interests recently due to its rich physics including modulation instability, gain broadening, unidirectional energy transfer etc.
Hanwen Hu   +5 more
doaj   +1 more source

New results on induced matchings

open access: yesDiscrete Applied Mathematics, 2000
The paper concerns graphs \(G=\langle V,E\rangle.\) The induced matching \(M\subseteq E\) contains a subset of edges of \(E\) that no two edges \(e_{i}\) and \(e_{j}\) in \(M \) share a common vertex \(v\in V\) and there is no \(e\in E\) connecting \(e_{i}\) and \(e_{j}.\) So, induced matching is matching that no two edges are connected in \(G\).
Martin Charles Golumbic   +1 more
openaire   +2 more sources

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