Results 101 to 110 of about 27,036 (301)

On the stability of finding approximate fixed points by simplicial methods

open access: yesJournal of Inequalities and Applications, 2016
This paper reports some new results in relation to simplicial algorithms considering continuities of approximate fixed point sets. The upper semi-continuity of a set-valued mapping of approximate fixed points using vector-valued simplicial methods is ...
Qi-Qing Song   +3 more
doaj   +1 more source

O oborech hodnot nelineárních operátorů

open access: yes, 2022
Jsou odvozeny podmínky zaručující, že obor hodnot spojitého zobrazení definovaného na kompaktní konvexní množině obsahuje předem danou množinu. Ve Fréchetových prostorech uvažujeme aproximace jedním zobrazením, jehož inverzní zobrazení má konvexní ...
Roubal, Tomáš, Cibulka, Radek
core   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

open access: yesFEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz   +11 more
wiley   +1 more source

The ubiquitin ligase RNF115 is required for the clearance of damaged lysosomes

open access: yesFEBS Letters, EarlyView.
Upon lysosomal rupture, an E3 ubiquitin ligase RNF115 translocates from the cytosol to the damaged lysosomal membrane. Moreover, RNF115 depletion impairs the clearance of damaged lysosomes, identifying it as a key regulator of lysosomal quality control.
Sae Nakanaga   +3 more
wiley   +1 more source

On common fixed points of weakly commuting mappings and set-valued mappings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1986
Our main theorem establishes the uniqueness of the common fixed point of two set-valued mappings and of two single-valued mappings defined on a complete metric space, under a contractive condition and a weak commutativity concept.
S. Sessa, B. Fisher
doaj   +1 more source

Prederivatives of gamma paraconvex set-valued maps and Pareto optimality conditions for set optimization problems

open access: yesJournal of Inequalities and Applications, 2017
Prederivatives play an important role in the research of set optimization problems. First, we establish several existence theorems of prederivatives for γ-paraconvex set-valued mappings in Banach spaces with γ > 0 $\gamma>0$ .
Hui Huang, Jixian Ning
doaj   +1 more source

Implicit Function Theorems for Non-Differentiable Mappings

open access: yes, 2006
Sufficient conditions are given for a mapping to be $\gamma$-G inverse differentiable. Constrained implicit function theorems for $\gamma$-G inverse differentiable mappings are obtained. The constraints are either closed convex cones or closed subsets in
Bian, W
core  

Preliminaries from set-valued analysis

open access: yes, 2012
This chapter includes the necessary background on further developments in the theory of hybrid systems. It first presents the notion of convergence for a sequence of sets and how it generalizes the notion of convergence of a sequence of points.
Rafal Goebel   +2 more
core   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

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