Results 91 to 100 of about 1,521,921 (326)

On Generalized Regular Local Ring

open access: yesScience Journal of University of Zakho, 2015
A ring R is called a generalized Von Neumann regular local ring (GVNL-ring) if for any a∈R, either a or (1-a) is π-regular element. In this paper, we give some characterization and properties of generalized regular local rings.
Zubayda M. Ibraheem, Naeema A. Shereef
doaj  

Huff’s form for elliptic curves over a local ring

open access: yesScientific African
Let Fq be a finite field of order q=pc, where p is a prime number ≥3, c∈N∗. In this paper, we introduce Huff curves denoted Ha,b2 over the local ring R2=Fq[X]/(X2). At first, we recall the arithmetic of the ring R2.
Abdelhakim Chillali   +2 more
doaj   +1 more source

On Rees localiti es and $H_i$-local rings

open access: yesPacific Journal of Mathematics, 1975
The main theorem gives a necessary and sufficient condition for each Rees locality $\mathscr{L}=R[tb, u]_{(M,tb,u)}$ of a local ring $(R, M) $ with respect to a principal ideal $bR$ in $R$ to be either an $H_{i}$-ring (that is, for all prime ideals $p$ in $\mathscr{L}$ such that height $p=i$, depth $p=$ altitude $\mathscr{L}-i$) or a homogeneously $H_ ...
openaire   +2 more sources

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch   +13 more
wiley   +1 more source

Longitudinal circulating tumor DNA profiling in patients with advanced endometrial cancer using an off‐the‐shelf targeted NGS panel

open access: yesMolecular Oncology, EarlyView.
Intratumour heterogeneity complicates precision management of advanced endometrial cancer. Circulating tumor DNA (ctDNA) offers a minimally invasive strategy to capture tumor evolution and therapeutic resistance. Here, we compare tumor‐agnostic NGS with tumor‐informed ddPCR, outlining their relative sensitivity, concordance, and clinical implications ...
Carlos Casas‐Arozamena   +15 more
wiley   +1 more source

Metastasis on pause: How dormant tumor cells stay hidden within the tumor microenvironment and evade immune surveillance

open access: yesMolecular Oncology, EarlyView.
Dormant cancer cells can hide in distant organs for years, evading treatment and the immune system. This review highlights how signals from the surrounding tissue and immune environment keep these cells inactive or trigger their reawakening. Understanding these mechanisms may help develop therapies to eliminate or control dormant cells and prevent ...
Kanishka Tiwary   +1 more
wiley   +1 more source

Aerodynamic Heating Mechanism and Local Shape Optimization of Thermal-Protection Ring of Rudder Shaft

open access: yes气体物理
This paper took the flat plate/air rudder model as the research object, aiming to reduce the aerodynamic heating acting on the thermal-protection ring of the rudder shaft through local shape optimization.
Yibin DOU   +5 more
doaj   +1 more source

Correction of multiple nonlinear resonances in storage rings

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2008
The correct implementation of the nonlinear lattice model is crucial to achieving the design performance in storage rings. We describe here a method for the simultaneous correction of multiple nonlinear resonances based on local resonance measurements ...
R. Bartolini   +4 more
doaj   +1 more source

On quasi-local noetherian rings [PDF]

open access: bronze, 1969
Gerhard O. Michler
openalex   +1 more source

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