Results 71 to 80 of about 6,339,291 (274)

The Decomposition of Tree-Ring Series for Environmental Studies

open access: yes, 1987
Signal extraction in tree-ring research is considered as a general time series decomposition problem. A linear aggregate model for a hypothetical ring-width series is proposed, which allows the problem to be reduced to the estimation and extraction of ...
Cook, Edward R.
core   +1 more source

Critical pressure-frequency characteristics analysis for ring-stiffened submerged conical shells

open access: yesZhongguo Jianchuan Yanjiu
[Objectives] In order to reveal the physical mechanism of the numerical simulation of the critical pressure of the underwater ring-stiffened conical shell and compare the accuracy of the experiment methods,[Methods] based on Flügge shell theory ...
Zhang Shuai   +4 more
doaj   +1 more source

On computable subgroups of the group of all unitriangular matrices over a ring

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2017
The problems of existence and uniqueness of computable numberings are fundamental in theory of computably numbered groups. In connection with the development of the theory of algorithms a study of the problems of computability of important classes of ...
R.K. Tyulyubergenev
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Applications of Soft Union Sets in the Ring Theory

open access: yesJournal of Applied Mathematics, 2013
The aim of the paper is to lay a foundation for providing a soft algebraic tool in considering many problems that contain uncertainties. In order to provide these soft algebraic structures, the notion of λ,μ-soft union rings which is a generalization of ...
Yongwei Yang, Xiaolong Xin, Pengfei He
doaj   +1 more source

Extending the Ring Theory of Personhood to the Care of Dying Patients in Intensive Care Units. [PDF]

open access: yesAsian Bioeth Rev, 2022
Chan NPX   +12 more
europepmc   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

open access: yesFEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise   +5 more
wiley   +1 more source

Zero-dimensional commutative rings proceedings of the 1994 John H. Barrett Memorial Lectures and Conference on Commutative Ring Theory

open access: yes, 1995
Based on the recent John H. Barrett Memorial Lectures and Conference on Commutative Ring Theory held at The University of Tennessee, Knoxville, this outstanding reference presents the latest advances in zero-dimensional commutative rings and commutative ...
John H. Barrett Memorial Lectures and Conference on Commutative Ring Theory 1994 Knoxville, Tenn.   +1 more
core  

A context‐dependent modulatory role for eIF6 in acquired resistance to vemurafenib in melanoma

open access: yesFEBS Letters, EarlyView.
Acquired resistance to vemurafenib upregulates the translation factor eIF6 in melanoma cells. Silencing eIF6 in resistant cells reduces proliferation and partially restores drug sensitivity, whereas its overexpression increases sensitivity across melanoma lines regardless of BRAF status, via modulation of mTOR, S6K, and MAPK signaling.
George Kyriakopoulos   +9 more
wiley   +1 more source

The ubiquitin system in normal and infected germinal center B cells

open access: yesFEBS Letters, EarlyView.
The ubiquitin system plays a central role in germinal center (GC) B cells, influencing differentiation to long‐lived memory B cells. Oncogenic gammaherpesviruses gain access to memory B cells by establishing latency in GC B cells. Mapping ubiquitin mechanisms in normal and infected GC B cells will define specific molecular circuits in B cells germane ...
Destiny Davis   +2 more
wiley   +1 more source

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