Results 231 to 240 of about 54,404 (265)
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Cryptogroups with an associate subgroup
Acta Mathematica Hungarica, 2013A cryptogroup is a completely regular semigroup \(S\) on which Green's relation \(\mathcal H\) is a congruence. \(S\) is called overabelian if all subgroups of \(S\) are Abelian. A subgroup \(G\) of \(S\) is associate subgroup of \(S\) if for each \(a\in S\) there exists exactly one \(x\in G\) such that \(a=axa\).
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Community Subgroups in Dyspepsia and Their Association With Weight Loss
The American Journal of Gastroenterology, 2008A link between dyspepsia symptoms and weight loss is controversial. We aimed to determine whether or not weight loss is a marker of dyspepsia.Independent community-based cross-sectional studies. Subjects were randomly selected from the general population in Sydney, Australia. All subjects completed validated community health surveys.
Michael P, Jones +4 more
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Association of molecular subgroups with pathological parameters in endometrial carcinomas
Indian Journal of Cancer, 2023Background: The integration of molecular features into the already existing pathological classification of endometrial carcinomas will offer significant prognostic information. As the literature search reveals, there are no studies from India that have classified these carcinomas based on molecular subtypes. The
Nirosha Ratnakaran +5 more
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The existence of an associate subgroup in normal cryptogroups
Publicationes Mathematicae Debrecen, 2008Let \(S\) be a semigroup. If \(a=axa\) for \(a,x\in A\) then \(x\) is called an associate of \(a\). A subgroup \(G\) of \(S\) is an associate subgroup of \(S\) if it contains exactly one associate of each element of \(S\). Every maximal subgroup of a regular semigroup \(S\) is an associate subgroup if and only if \(S\) is completely simple, or ...
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On some medial semigroups with an associate subgroup
Semigroup Forum, 2011Let \(S\) be a semigroup and \(s,t\in S\). The element \(t\) is called an `associate' of \(s\) if \(s=sts\). Let \(z\) be an idempotent of \(S\). If \(S\) has a maximal subgroup \(G\) such that every element \(s\) of \(S\) has a unique associate in \(G\), say \(s^*\), we say that \(G\) is an associate subgroup of \(S\) and consider the mapping \(s\to s^
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A partition of characters associated to nilpotent subgroups
Israel Journal of Mathematics, 1999\textit{G. Navarro} [J. Aust. Math. Soc., Ser. A 61, No. 3, 369-376 (1996; Zbl 0874.20006)], introduced the good bases. If \(G\) be a finite group, \(H\subseteq G\) and \(\text{cf}(H)^G=\{\alpha^G\mid\alpha\in\text{cf}(H)\}\), then a basis \(B\) of this subspace is good if it satisfies the following two conditions: (I) If \(\eta\in B\), then there is \(
Navarro, Gabriel, Sanus, Lucía
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Cardiac-associated biliary atresia (CABA): a prognostic subgroup
Archives of Disease in Childhood, 2020ObjectivesTo describe the range of concurrent cardiac malformations in biliary atresia (BA) while providing a functional framework of risk.MethodsDemographic and variables were collected from a prospectively maintained single-centre database. Infants were grouped according to a cardiac functional framework (A=acyanotic, B=cyanotic and C=insignificant ...
Bashar Aldeiri +5 more
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Quality of life in subgroups of individuals with whiplash associated disorders
European Journal of Pain, 2008AbstractBackground: The term whiplash associated disorders (WAD) includes a wide range of complaints, with neck pain as predominating symptom. Living with long term pain influences quality of life. In previous studies of other chronic pain patients, subgrouping has been made according to thermal pain thresholds measured in quantitative sensory testing (
Mia K M, Wallin, Ragnhild I, Raak
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Cytomegalovirus-associated biliary atresia: An aetiological and prognostic subgroup
Journal of Pediatric Surgery, 2015Perinatal cytomegalovirus (CMV) infection is a possible cause or trigger of biliary atresia though clinical evidence is scant. We hypothesised that CMV IgM+ve biliary atresia is a separate clinical entity compared to CMV IgM-ve biliary atresia.Prospective single-centre study. 210 infants with histologically confirmed biliary atresia were treated in our
ZANI, AUGUSTO +4 more
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On Some Monogenic Semigroups with an Associate Subgroup
Communications in Algebra, 2015Let S be any semigroup and a, s ∈ S. If a = asa, then s is an associate of a. A subgroup G of S is an associate subgroup of S if every a ∈ S has a unique associate a* in G. It turns out that G = H z for some idempotent z, the zenith of S. The mapping a → a* is a unary operation on S.
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