Results 11 to 20 of about 337 (185)

An Orthogonal Left Centralizer and Reverse Left Centralizer on Semiprime -Rings

open access: yes, 2022
Let M be a semiprime G-ring . In this paper we introduce the concept of orthogonal left centralizer and reverse left centralizer on a semiprime G- ring and we prove the following       main result: Let M be a 2-torsion free semiprime ...
Fawaz Ra\u27ad Jarullah , Yilmaz Çeven
core   +3 more sources

Generalized Higher Left Centralizer of Prime Γ-Rings

open access: yes, 2022
In this paper we introduce the concepts of generalized higher left centralizer and generalized Jordan higher left centralizer of  Γ-rings M as well as we proved that every generalized Jordan higher left centralizer of certain Γ-ring M is generalized ...
salih, Salah Mehdi   +2 more
core   +1 more source

Characterization and commuting probability of n-centralizer finite rings

open access: yes, 2023
Let R be a finite ring. The commuting probability of R is the probability that any two randomly chosen elements of R commute. A ring R is called an n-centralizer ring if it has n distinct centralizers.
Nath, Rajat Kanti   +2 more
core   +1 more source

A note on the centralizer of a subalgebra of the Steinberg algebra

open access: yes, 2022
For an ample Hausdorff groupoid G, and the Steinberg algebra AR(G) with coefficients in the commutative ring R with unit, we describe the centralizer of the subalgebra AR(U) with U an open closed invariant subset of the unit space of G. In particular, it
Hazrat, Roozbeh (R16959), Li, Huanhuan
core   +1 more source

Generalized blocked triangular matrix rings associated with finite abelian centralizer near-rings [PDF]

open access: yesProceedings of the Edinburgh Mathematical Society, 1998
ForNany member of a large class of finite abelian right centralizer near-rings, the subring of the ring End(N) of endomorphisms of (N, +) generated by the set of right multiplication maps onNis explicitly described as a generalized blocked triangular matrix ring, which in some cases turns out to be a structural matrix ring.
Smith, Kirby C., van Wyk, Leon
openaire   +2 more sources

A Ring Associated with a Near-Ring

open access: yes, 1996
LetNbe a right near-ring with identity such that (N, +) is abelian. BecauseNenjoys the right distributive property, every right multiplication map onNis an endomorphism of (N, +).
Smith, Kirby C
core   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Heterogeneity in the Global Practice of Central Nervous System Staging in Pediatric Acute Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) involvement in childhood acute lymphoblastic leukemia (ALL) is assessed by cell counting and cytomorphology from cerebrospinal fluid (CSF) and is used for treatment stratification worldwide. The ratio of “CNS2” patients in clinical trials ranges from 3% to 40%, with unclear prognostic significance ...
Laura Almási   +14 more
wiley   +1 more source

Pre‐analytical optimization of cell‐free DNA and extracellular vesicle‐derived DNA for mutation detection in liquid biopsies

open access: yesMolecular Oncology, EarlyView.
Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen   +11 more
wiley   +1 more source

Remote Assessment of Ataxia Severity in SCA3 Across Multiple Centers and Time Points

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Spinocerebellar ataxia type 3 (SCA3) is a genetically defined ataxia. The Scale for Assessment and Rating of Ataxia (SARA) is a clinician‐reported outcome that measures ataxia severity at a single time point. In its standard application, SARA fails to capture short‐term fluctuations, limiting its sensitivity in trials.
Marcus Grobe‐Einsler   +20 more
wiley   +1 more source

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