Results 81 to 90 of about 11,744,847 (379)

Ablation of LRP6 in alpha‐smooth muscle actin‐expressing cells abrogates lung inflammation and fibrosis upon bleomycin‐induced lung injury

open access: yesFEBS Letters, EarlyView.
Low‐density lipoprotein receptor‐related protein 6 (LRP6) is a key receptor for the Wnt antagonist Dickkopf1 (DKK1). DKK1 protein expression is induced in a bleomycin (BLM)‐induced lung injury model. We show that DKK1 induces proinflammatory and profibrotic genes in lung fibroblasts.
Eun‐Ah Sung   +6 more
wiley   +1 more source

Approximating Fixed Points of Bregman Generalized α-Nonexpansive Mappings

open access: yesMathematics, 2019
In this paper, we introduce a new class of Bregman generalized α -nonexpansive mappings in terms of the Bregman distance. We establish several weak and strong convergence theorems of the Ishikawa and Noor iterative schemes for Bregman ...
Kanikar Muangchoo   +4 more
doaj   +1 more source

A Note on Smithson (1971) "Fixed Points of Order Preserving Multifunctions'' [PDF]

open access: yesarXiv, 2023
Smithson (1971) ``Fixed points of order preserving multifunctions'' gives a fixed point theorem for a self correspondence on a partially ordered set, but its proof has an error. This paper points it out by constructing a counterexample and proves the theorem correctly.
arxiv  

Characteristics of the Kelch domain containing (KLHDC) subfamily and relationships with diseases

open access: yesFEBS Letters, EarlyView.
The Kelch protein superfamily includes 63 members, with the KLHDC subfamily having 10 proteins. While their functions are not fully understood, recent advances in KLHDC2's structure and role in protein degradation have highlighted its potential for drug development, especially in PROTAC therapies.
Courtney Pilcher   +6 more
wiley   +1 more source

Fixed points of automorphisms [PDF]

open access: yesProceedings of the American Mathematical Society, 1976
We prove that the fixed point set of a compact Lie group of automorphisms of a Lie group has finitely many components if the Lie group does.
openaire   +2 more sources

Re-modified derivative-free iterative method for nonlinear monotone equations with convex constraints

open access: yesAin Shams Engineering Journal, 2021
In this note, we propose a modification as an alternative to remove the assumption of uniformly monotone as assumed in Aliyu et al. (2019). Numerical experiment shows that the modification improves the numerical performance of the method.
Abdulkarim Hassan Ibrahim, Poom Kumam
doaj  

Insertion of the FeB cofactor in cNORs lacking metal inserting chaperones

open access: yesFEBS Letters, EarlyView.
Nitric oxide reductase is an enzyme found in the bacterial denitrification pathway. The NOR active site contains a non‐heme iron, often, but not always inserted with the assistance of chaperones. Here, we study the insertion of FeB in the subfamily of cNORs lacking chaperones and found a putative channel, conserved in the family, perhaps enabling the ...
Sofia Appelgren, Pia Ädelroth
wiley   +1 more source

Unique fixed points vs. least fixed points

open access: yesTheoretical Computer Science, 1980
AbstractThe aim of this paper is to compare two approaches to the semantics of programming languages: the least fixed point approach, and the unique fixed point approach. Briefly speaking, we investigate here the problem of existence of extensions of algebras with the unique fixed point property to ordered algebras with the least fixed point property ...
openaire   +2 more sources

Fixed Point Logics

open access: yesThe Bulletin of Symbolic Logic, 2002
AbstractWe consider fixed point logics, i.e., extensions of first order predicate logic with operators defining fixed points. A number of such operators, generalizing inductive definitions, have been studied in the context of finite model theory, including nondeterministic and alternating operators. We review results established in finite model theory,
Dawar, Anuj, Gurevich, Yuri
openaire   +2 more sources

One step proximal point schemes for monotone vector field inclusion problems

open access: yesAIMS Mathematics, 2022
In this paper, we propose one step convex combination of proximal point algorithms for countable collection of monotone vector fields in CAT(0) spaces.
Sani Salisu   +2 more
doaj   +1 more source

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