Results 41 to 50 of about 1,006,297 (273)

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin   +2 more
wiley   +1 more source

Strong -Reversible Ring [PDF]

open access: yes, 2014
Misalkan R adalah ring dengan endomorfisma a . Endomorfisma a dalam ring R disebut strong reversible kanan jika (Xa=0 ) Xa=0 maka dan disebut strong reversible kiri jika (ax y=0 ) maka untuk .
Andari, TitisRisty
core  

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

A KIND OF GRAPH STRUCTURE ASSOCIATED WITH ZERO-DIVISORS OF MONOID RINGS [PDF]

open access: yesJournal of Algebraic Systems
Let $R$ be an associative ring and $M$ be a monoid‎. ‎In this paper‎, ‎we introduce new kind of graph structure asociated with zero-divisors of monoid ring $R[M]$‎, ‎calling it the $M$-Armendariz graph of a ring $R$ and denoted by $A(R,M)$‎.
Mohammad Etezadi, Abdollah Alhevaz
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Tree-Ring Dating and Archaeology in the American Southwest

open access: yes, 1976
The relationship between archaeology and tree-ring dating, or dendrochronology, is reviewed. Until the past decade, the applications of tree-ring dating to archaeological problems had not been thoroughly exploited.
Robinson, William J.
core   +4 more sources

3,6-Diphenyltetrazine as Cathode Active Material for Sodium Ion Batteries

open access: yesElectrochemistry, 2022
3,6-diphenyltetrazine (DPT) is an electron-deficient π-conjugated molecule with a perfectly planar structure and high crystallinity. In this study, discharge-charge tests of crystalline DPT as a cathode material for sodium ion batteries were conducted ...
Jun WATANABE   +9 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Experimental demonstration of an optical Feynman gate for reversible logic operation using silicon micro-ring resonators

open access: yesNanophotonics, 2018
Currently, the reversible logic circuit is a popular research topic in the field of information processing as it is a most effective approach to minimize power consumption, which can achieve the one-to-one mapping function to identify the input signals ...
Tian Yonghui   +10 more
doaj   +1 more source

RINGS OVER WHICH POLYNOMIAL RINGS ARE ARMENDARIZ AND REVERSIBLE

open access: yesKorean Journal of Mathematics, 2012
Summary: A ring \(R\) is called \textit{reversibly Armendariz} if \(b_j a_i = 0\) for all \(i,j\) whenever \(f(x)g(x) = 0\) for two polynomials \(f(x) = \sum_{i=0}^m {a_i x_i}\), \(g(x) = \sum_{j=0}^n {b_j x_j}\) over \(R\). It is proved that a ring \(R\) is reversibly Armendariz if and only if its polynomial ring is reversibly Armendariz if and only ...
Ahn, Jung Ho   +12 more
openaire   +3 more sources

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