Results 21 to 30 of about 19,038 (272)
Central neurocytomas (CN) are rare intraventricular tumors with prominent neuronal differentiation. CN commonly arise in the lateral ventricles of young adults who predominantly present with raised intracranial pressure. Few studies have described the clinical, pathological, and radiological features of these tumors, and those that have are typically ...
Haihui, Chen +3 more
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A note on Jordan left *-centralizers on prime and semiprime rings with involution
The aim of this note is to give alternative and short proofs for some results to Ali et al. in [3] by using the relationship between the concepts of Jordan left *-centralizer and right centralizer on a 2-torsion free semiprime rings endowed with ...
M.S. Tammam El-Sayiad +2 more
doaj +1 more source
Locally finite groups in which every non-cyclic subgroup is self-centralizing [PDF]
Locally finite groups having the property that every non-cyclic subgroup contains its centralizer are completely classified.Comment: 12 ...
Delizia, Costantino +4 more
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Green’s Relations in the Commutative Centralizers of Monounary Algebras
The paper deals with the monounary algebras for which the second centralizer equals the first centralizer. We describe Green’s relations on the semigroup C, where C is the centralizer of such algebra.
Jakubíková-Studenovská D. +1 more
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Breaking points in centralizer lattices [PDF]
In this note, we prove that the centralizer lattice ${\mathfrak C}(G)$ of a group $G$ cannot be written as a union of two proper intervals. In particular, it follows that ${\mathfrak C}(G)$ has no breaking point.
Tărnăuceanu, Marius
core +3 more sources
On Jordan Triple α-*Centralizers Of Semiprime Rings
Let R be a 2-torsion free semiprime ring equipped with an involution *. An additive mapping T : R→R is called a left (resp. right) Jordan α-*centralizer associated with a function α: R→R if T(x2)=T(x)α(x*) (resp. T(x2)=α(x*)T(x)) holds for all x ∊ R.
Ashraf Mohammad +2 more
doaj +1 more source
Normalizers and centralizers of subgroups in non-Abelian groups of small order [PDF]
By applying the computer program, which is created by authors, we obtain the exact representation of normalizers and centralizers of all nontrivial subgroups in non-Abelian groups G under the condition |G|20.
Ilya Anatolievih Shilin +1 more
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Central hypoadrenalism is a frequent complication of pituitary and hypothalamic pathology and is associated with increased morbidity and mortality. Optimal exogenous glucocorticoid use is dependent on the use of appropriate diagnostic tests and careful assessment of the clinical response to glucocorticoid replacement therapy.A PubMed search for the ...
R K, Crowley +3 more
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Background and purpose — A tapered, polished and collarless stem is normally equipped with a hollow centralizer to prevent the stem from becoming end-bearing in the cement as the stem subsides. In a randomized clinical trial, we evaluated such a stem (MS-
Erik Weber +3 more
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Jordan ?-Centralizers of Prime and Semiprime Rings
The purpose of this paper is to prove the following result: Let R be a 2-torsion free ring and T: R?R an additive mapping such that T is left (right) Jordan ?-centralizers on R.
Baghdad Science Journal
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