Results 101 to 110 of about 2,201,220 (312)

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

A note on the relationship between the information matrx test and a score test for parameter constancy [PDF]

open access: yes
Information matrix (IM) test (White, 1982) has been used for detecting general model misspecification in the applied econometrics literature. Two of the most commonly used asymptotic covariance matrix estimators (ACMEs) for the IM test are the one that ...
Daisuke Nagakura
core  

Ultra-endurance race performance and muscle mass as predictors of cognitive capacity

open access: yesFrontiers in Cognition
IntroductionThis study investigated which objective measures best predict cognitive performance in ultra-endurance athletes.MethodsForty-three recreational cyclists completed a race of ?341 km over 18 h, with cognitive function assessed using a three ...
Deina Vilite   +21 more
doaj   +1 more source

Tests for Permutation Functions

open access: yesFinite Fields and Their Applications, 1995
For \(q\) a prime power, let \(\mathbb{F}_ q\) denote the finite field of order \(q\) and let \(f\in \mathbb{F}_ q (x)\) be a rational function over \(\mathbb{F}_ q\). \(D\subseteq \mathbb{F}_ q\) will denote the domain of definition of \(f\). In recent years many papers have been written concerning permutation polynomials over \(\mathbb{F}_ q\), i.e ...
Ma, K., Von zur Gathen, J.
openaire   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Are Asset Demand Functions Determined by CAPM? [PDF]

open access: yes
The Capital Asset Pricing Model (CAPH) says that the responsiveness of asset-demands to expected returns depends (inversely) on the variance-covariance matrix of returns, rather than being an arbitrary set of parameters.Previous tests of CAPM have ...
William T. Dickens, Jeffrey A. Frankel
core  

An adaptive learning particle swarm optimizer for function optimization [PDF]

open access: yes, 2009
This article is posted here with permission of the IEEE - Copyright @ 2009 IEEETraditional particle swarm optimization (PSO) suffers from the premature convergence problem, which usually results in PSO being trapped in local optima.
Yang, S   +5 more
core   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

open access: yesFEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Performance of Differential Evolution and Particle Swarm Methods on Some Relatively Harder Multi-modal Benchmark Functions

open access: yes
This paper aims at comparing the performance of the Differential Evolution (DE) and the Repulsive Particle Swarm (RPS) methods of global optimization. To this end, some relatively difficult test functions have been chosen.
Mishra, SK
core   +2 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

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