Results 91 to 100 of about 828,524 (283)

A remark on Rhoades fixed point theorem for non-self mappings

International Journal of Mathematics and Mathematical Sciences, 1993
Let X be a Banach space, K a non-empty closed subset of X and T:K→X a mapping satisfying the contractive definition (1.1) below and the condition T(∂K)⫅K. Then T has a unique fixed point in K.
Ljubomir B. ciric
doaj   +1 more source

Common fixed point theorems for weakly increasing mappings on ordered orbitally complete metric spaces [PDF]

, 2012
Hui-Sheng Ding, Zoran Kadelburg, Hemant Kumar Nashine   +2 more
openalex   +1 more source

A complete metric space without non-trivial separable Lipschitz retracts [PDF]

, 2022
Petr Hájek, Andrés Quilis
openalex   +1 more source

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

FEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon, Angéla Békesi, Latifa Kazzazy, Jázmin Mihály, Máté Varga, Beáta G. Vértessy, Kinga Nyíri   +6 more
wiley   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

FEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Tumor‐stromal crosstalk and macrophage enrichment are associated with chemotherapy response in bladder cancer

FEBS Open Bio, EarlyView.
Chemoresistance in bladder cancer: Macrophage recruitment associated with CXCL1, CXCL5 and CXCL8 expression is characteristic of Gemcitabine/Cisplatin (Gem/Cis) Non‐Responder tumors (right side) while Responder tumors did not show substantial tumor‐stromal crosstalk (left side). All biological icons are attributed to Bioicons: carcinoma, cancerous‐cell‐
Sophie Leypold, Janik Riese, Lancelot Seillier, Mark Kühnel, Julia Pannhausen, Charlotte O. J. Fröhlich, Christian Martin, Peter Boor, Matthias Saar, Danny D. Jonigk, Nadine T. Gaisa, Michael Rose   +11 more
wiley   +1 more source

On Common Fixed Point Theorems in the Stationary Fuzzy Metric Space of the Bounded Closed Sets

Abstract and Applied Analysis, 2013
Under the -contraction conditions, we prove common fixed point theorems for self-mappings in the space of the bounded closed sets in the complete stationary fuzzy metric space with the -fuzzy metric for the bounded closed sets.
Dong Qiu, Chongxia Lu, Wei Zhang, Yuzhong Mo   +3 more
doaj   +1 more source

(φ, ψ)-Contractıon Condition for Multivalued Mappings in Complete Modular Metric Spaces

, 2020
Duran Türkoğlu, Emine Kilinc
openalex   +1 more source

Some new fixed point theorems in complete metric spaces [PDF]

, 2012
M. O. Olatinwo, wo@oauife.edu.ng E-mail address: memudu.olatinwo@gmail.com   +1 more
openalex   +1 more source

The role of lipid metabolism in neuronal senescence

FEBS Open Bio, EarlyView.
Disrupted lipid metabolism, through alterations in lipid species or lipid droplet accumulation, can drive neuronal senescence. However, lipid dyshomeostasis can also occur alongside neuronal senescence, further amplifying tissue damage. Delineating how lipid‐induced senescence emerges in neurons and glial cells, and how it contributes to ageing and ...
Dikaia Tsagkari, Eleftheria Panagiotidou, Nektarios Tavernarakis   +2 more
wiley   +1 more source