Results 41 to 50 of about 187,447 (246)

On Abelian Rings [PDF]

, 2010
Let alpha be an endomorphism of an arbitrary ring R with identity In this note, we introduce the notion of alpha-abelian rings which generalizes abelian rings We prove that alpha-reduced rings, alpha-symmetric rings, alpha-semicommutative rings and alpha-
HALICIOĞLU, SAİT, Harmanci, Abdullah, Agayev, Nazim   +2 more
core   +4 more sources

Long-term results of intrastromal ring implantation for keratoconus [PDF]

Revista Brasileira de Oftalmologia
Objective: To evaluate refractive and topographic outcomes before and at least 7 years after intrastromal ring segment implantation surgery in patients with keratoconus.
Henrique Celso Duarte de Rezende Rocha, Bernardo Kaplan Moscovici, Daniel Diniz da Gama, Renato Ambrósio Júnior, Marcos Pereira de Ávila   +4 more
doaj   +1 more source

Transverse broadband impedance reduction techniques in a heavy ion accelerator

Physical Review Accelerators and Beams, 2020
The transverse broadband impedances of major components in the BRing (booster ring) of HIAF (High Intensity Heavy-ion Accelerator Facility) are estimated using the analytical formulas or the wakefield solver in the CST Studio Suite. At low frequency, the
X. Q. Chen, G. Y. Zhu, F. Caspers, J. C. Yang, J. X. Wu, G. D. Shen, J. Liu, J. W. Xia, Y. Zhang, S. Ruan, G. Wang, L. P. Yao, F. C. Cai, H. Ren, Q. Y. Kong, Y. Z. Gao   +15 more
doaj   +1 more source

F-actin reorganization by V-ATPase inhibition in prostate cancer

Biology Open, 2017
The vacuolar ATPase (V-ATPase) proton pump sustains cellular pH homeostasis, and its inhibition triggers numerous stress responses. However, the cellular mechanisms involved remain largely elusive in cancer cells.
Yamhilette Licon-Munoz, Vera Michel, Colleen A. Fordyce, Karlett J. Parra   +3 more
doaj   +1 more source

Reduced estradiol-induced vasodilation and poly-(ADP-ribose) polymerase (PARP) activity in the aortas of rats with experimental polycystic ovary syndrome (PCOS). [PDF]

PLoS ONE, 2013
Polycystic ovary syndrome (PCOS) is a complex endocrine disorder characterized by hyperandrogenism and insulin resistance, both of which have been connected to atherosclerosis.
Gabriella Masszi, Eszter Maria Horvath, Robert Tarszabo, Rita Benko, Agnes Novak, Anna Buday, Anna-Maria Tokes, Gyorgy L Nadasy, Peter Hamar, Zoltán Benyó, Szabolcs Varbiro   +10 more
doaj   +1 more source

Reduced Gröbner Bases in Polynomial Rings over a Polynomial Ring [PDF]

Mathematics in Computer Science, 2008
We propose a new notion of reduced Grobner bases in polynomial rings over a polynomial ring and we show that every ideal has a unique reduced Grobner basis. We introduce an algorithm for computing them.
openaire   +1 more source

A generalization of reduced rings [PDF]

, 2018
Tez özet, abstract, giriş, temel tanımlar ve üç ana başlıktan oluşmaktadır. Birinci bölüm " Giriş ", ikinci bölüm " Temel Tanımlar ", üçüncü bölüm " Yarı İndirgenmiş Halkalar ", dördüncü bölüm " İndirgenmiş Halkaların Genelleştirilmesi " ve son bölüm ...
Canpolat, Zuhal
core  

Dual Polarized Reconfigurable Frequency Selective Surfaces [PDF]

, 2013
Novel band-stop active frequency selective surfaces (FSS) capable of modifying their response for different polarizations are proposed. Geometries based on full rings, and split rings are employed.
Sanz-Izquierdo, B., Parker, E.A.
core   +1 more source

Newly structured design and finite element analysis of bionic nonsmooth surface sealing ring of cone bit

Advances in Mechanical Engineering, 2018
The seal is a critical component of a cone bit, whose performance can be reduced because of its large contact area. To reduce stress within the seal, a bionic nonsmooth surface seal was designed and the structural parameters of sealing rings with ...
Yi Zhou, Yinghuan Liu
doaj   +1 more source

${\mathbf G}_a$-actions on the affine line over a non-reduced ring [PDF]

, 2022
Motoki Kuroda, Shigeru Kuroda
openalex   +1 more source