Results 91 to 100 of about 11,465 (303)

On Characterizations of Fixed and Common Fixed Points

open access: yesJournal of Mathematical Analysis and Applications, 1998
The authors introduce the concept of \(L\)-mapping which is equivalent to the concept of \(C\)-mapping introduced by \textit{S. Zhang} [Proc. Am. Math. Soc. 97, 343-346 (1986; Zbl 0593.54045)] and establish criteria for the existence of fixed points of \(L\)-mappings.
Liu, Zeqing, Xu, Yuguang, Cho, Yeol Je
openaire   +2 more sources

Contextual Physics Optics Lab Media Based on Deep Learning: Analysis of Clove Fixator Variations on Light Intensity Absorption on Colored Fabrics

open access: yesPendipa
This study aims to produce a contextual laboratory practice in optics by analyzing the variations of fixatives in clove natural dye on the absorption of sunlight by colored fabrics.
Maria Enjelina Suban   +2 more
doaj   +1 more source

Intrinsically Mitochondria‐Targeting Nanozyme via Coordination‐Assembly of Natural Quercetin for Cascade Antioxidant Therapy of Cerebral Ischemia‐Reperfusion Injury

open access: yesAdvanced Science, EarlyView.
This study uncovers that quercetin naturally targets mitochondria. By coordinating quercetin with Fe3+, we engineer an ultrasmall cascade nanozyme (MCN) with superoxide dismutase‐catalase activities. MCN crosses the damaged blood–brain barrier, scavenges mitochondrial ROS, prevents mitochondrial DNA leakage, and blocks the cGAS‐STING pathway, thereby ...
Wenxuan Zheng   +14 more
wiley   +1 more source

Formaldehyde substitute fixatives. Analysis of macroscopy, morphologic analysis, and immunohistochemical analysis [PDF]

open access: yes, 2011
Because formaldehyde is toxic and creates cross-links that may hinder immunohistochemical studies, we tested 3 new cross-linking (F-Solv [Adamas, Rhenen, the Netherlands]) and non-cross-linking (FineFIX [Milestone, Bergamo, Italy] and RCL2 [Alphelys ...
ten Kate, Fiebo J.   +4 more
core   +1 more source

Effects of formalin, methacarn, and fineFIX fixatives on RNA preservation. [PDF]

open access: yes, 2010
Formalin-fixed tissues represent the most abundant clinical material for retrospective studies. However, formalin highly affects macromolecules, impairing their extraction and analysis.
NARDON, ERMANNO   +9 more
core   +3 more sources

Multi‐Targeting Carnosic Acid Kills Drug‐Resistant Helicobacter pylori With Narrow‐Spectrum Activity

open access: yesAdvanced Science, EarlyView.
Carnosic acid selectively eradicates drug‐resistant Helicobacter pylori through a multi‐targeted mechanism involving urease inhibition, membrane disruption, and biofilm eradication. It exhibits no detectable resistance, potent in vivo efficacy, and minimal impact on gut microbiota, positioning it as a promising narrow‐spectrum lead compound against ...
Yuefan Bai   +7 more
wiley   +1 more source

Immunohistochemical localization of human immunoglobulins and lysozyme in epoxy-embedded lymph nodes: effect of different fixatives and of proteolytic digestion. [PDF]

open access: yes, 1982
The postembedding immunoperoxidase staining technique for the localization of immunoglobulins (light and heavy chains) and of lysozyme has been successfully applied to epoxy-embedded human lymph nodes, after removal of the resin.
P Dell'Orto   +4 more
core   +1 more source

Effect of fixative type and fixation time on the morphology of bovine preantral ovarian follicles
Efeito do tipo de fixador e tempo de fixação na morfologia de folículos pré-antrais ovarianos bovinos

open access: yesSemina: Ciências Agrárias, 2012
There are no efficient fixatives for histological analyses of ovarian tissue that permit an appropriate morphological analysis of ovary and their cells.
Rogerio Ferreira   +8 more
doaj   +1 more source

Human Urine Stem Cells Alleviate Pulmonary Fibrosis via Inhibiting Macrophage‐Myofibroblast Transition

open access: yesAdvanced Science, EarlyView.
Therapeutic role and mechanism of human urine stem cells (hUSCs) in pulmonary fibrosis. hUSCs alleviated pulmonary fibrosis by selectively inhibiting macrophage‐myofibroblast transition (MMT) in two ways: on one hand, hUSCs inhibited mitochondrial reactive oxygen species (mtROS) production and apoptosis/senescence of epithelial cells in pulmonary ...
Zhou‐Hang Zhang   +10 more
wiley   +1 more source

The effect of some fixatives on the staining ability of Sorghum bicolor extracts on tissue sections [PDF]

open access: yes, 2010
The effect of some fixatives on the staining reactions of the extracts of Sorghum bicolor on tissue sections was studied in order to identify the most appropriate fixative for the stain. Tissue sections taken at postmortem were fixed in 10% formol saline,
Aloamaka, C   +3 more
core   +2 more sources

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