Results 41 to 50 of about 14,293,729 (308)

On reducing homological dimensions over Noetherian rings [PDF]

open access: yes, 2021
Let $ $ be a left and right noetherian ring. First, for $m,n\in\mathbb{N}\cup\{\infty\}$, we give equivalent conditions for a given $ $-module to be $n$-torsionfree and have $m$-torsionfree transpose. Using them, we investigate totally reflexive modules and reducing Gorenstein dimension.
Araya, Tokuji, Takahashi, Ryo
openaire   +3 more sources

An extension of the reflexive property of rings

open access: yesArab Journal of Mathematical Sciences, 2019
Mason introduced the notion of reflexive property of rings as a generalization of reduced rings. For a ring endomorphism α, Krempa studied α-rigid rings as an extension of reduced rings. In this note, we introduce the notion of α-quasi reflexive rings as
Arnab Bhattacharjee
doaj   +1 more source

Why and When Are Evidence‐Based Interventions Adopted in Paediatric Supportive Care? A Qualitative Exploration of the Determinants of Photobiomodulation Implementation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Oral mucositis is a common and debilitating side effect of childhood cancer and stem cell transplant treatments. It affects the quality of life of children and young people (CYP) and places a strain on services. Photobiomodulation is recommended for oral mucositis prevention in international guidance but is poorly implemented in UK ...
Claudia Heggie   +4 more
wiley   +1 more source

Matrix Diophantine equations over quadratic rings and their solutions

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2020
The method for solving the matrix Diophantine equations over quadratic rings is developed. On the basic of the standard form of matrices over quadratic rings with respect to $(z,k)$-equivalence previously established by the authors, the matrix ...
N.B. Ladzoryshyn   +2 more
doaj   +1 more source

Comparison of Contamination of Low-Frictional Elastomeric Rings with That of Conventional Elastomeric Rings by Streptococcus mutans - An In-vivo Study [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2015
Introduction: The presence of brackets and ligatures has been shown to be related to an increase in gingival inflammation and increased risk of decalcification. The various measures were taken to reduce the plaque accumulation and also lot of efforts
Sumanth Rangarajan   +4 more
doaj   +1 more source

Globalization of twisted partial actions

open access: yes, 2010
Let A be a unital ring which is a product of possibly infinitely many indecomposable rings. We establish criteria for the existence of a globalization for a given twisted partial action of a group on A.
Dokuchaev, M., Exel, R., Simón, J. J.
core   +2 more sources

Zero-divisor graphs of reduced Rickart *-rings

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2017
For a ring A with an involution *, the zero-divisor graph of A, Γ*(A), is the graph whose vertices are the nonzero left zero-divisors in A such that distinct vertices x and y are adjacent if and only if xy* = 0.
Patil A.A., Waphare B.N.
doaj   +1 more source

Clinical Insights Into Hypercalcemia of Malignancy in Childhood

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley   +1 more source

Anillos separables, de baer y pp-anillos

open access: yesRevista de Matemática: Teoría y Aplicaciones, 2009
Keimel introduced the notion of proyectability in the class of lattice-ordered rings and f-rings in [5]. Here we introduce a similar notion forgeting the lattice and ordered structure of the ring and interpretating the orthogonality within the ...
Jorge I. Guier
doaj   +1 more source

Analysis and Evaluation of Strengthening Effect of Inflatable Rings on Soft Stratospheric Airship

open access: yesTaiyuan Ligong Daxue xuebao, 2023
Purposes The research on advanced stratospheric airships in China is mainly at the conceptual design stage, lacking specific mechanical performance evaluation to promote their development.
Tiane LI   +4 more
doaj   +1 more source

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