Results 91 to 100 of about 3,618,266 (313)

Diffusion barriers [PDF]

open access: yes
The choice of the metallic film for the contact to a semiconductor device is discussed. One way to try to stabilize a contact is by interposing a thin film of a material that has low diffusivity for the atoms in question.
Nicolet, M. A.
core   +1 more source

Absence of barriers in dynamical triangulation [PDF]

open access: yes, 1994
Due to the unrecognizability of certain manifolds there must exist pairs of triangulations of these manifolds that can only be reached from each other by going through an intermediate state that is very large.
Agishtein   +9 more
core   +2 more sources

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

open access: yesFEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini   +2 more
wiley   +1 more source

Relation of open circuit voltage to charge carrier density in organic bulk heterojunction solar cells

open access: yes, 2011
The open circuit voltage Voc and the corresponding charge carrier density were measured in dependence of temperature and illumination intensity by current-voltage and charge extraction measurements for P3HT:PCBM and P3HT:bisPCBM solar cells.
Deibel, Carsten   +3 more
core   +1 more source

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

open access: yesFEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso   +4 more
wiley   +1 more source

Fused Membrane-Targeted Nanoscale Gene Delivery System Based on an Asymmetric Membrane Structure for Ischemic Stroke

open access: yesPharmaceutics
Background: Bone marrow-derived mesenchymal stem cell exosomes (EXOs) are attractive in biotechnology and biomedical research, as they possess natural cell-targeting properties and can cross biological barriers by influencing the SDF-1/CXCR4 axis.
Jing Shi   +9 more
doaj   +1 more source

DDX3X induces mesenchymal transition of endothelial cells by disrupting BMPR2 signaling

open access: yesFEBS Open Bio, EarlyView.
Elevated DDX3X expression led to downregulation of BMPR2, a key regulator of endothelial homeostasis and function. Our co‐immunoprecipitation assays further demonstrated a molecular interaction between DDX3X and BMPR2. Notably, DDX3X promoted lysosomal degradation of BMPR2, thereby impairing its downstream signaling and facilitating endothelial‐to ...
Yu Zhang   +7 more
wiley   +1 more source

Cardiovascular Events and Heart Failure in Patients With Type 2 Diabetes Treated With Dipeptidyl Peptidase-4 Inhibitors: A Meta-Analysis

open access: yesCurrent Therapeutic Research
Background: The global prevalence of type 2 diabetes mellitus (T2DM) continues to rise, with patients facing significantly elevated risks of cardiovascular complications, particularly heart failure (HF). Objective: This examination sought to methodically
Adili Tuersun, PhD   +7 more
doaj   +1 more source

Metformin promotes mitochondrial integrity through AMPK‐signaling in Leber's hereditary optic neuropathy

open access: yesFEBS Open Bio, EarlyView.
Metformin mediates mitochondrial quality control in Leber's hereditary optic neuropathy (LHON) fibroblasts carrying mtDNA mutations. At therapeutic levels, metformin activates AMPK signaling to restore mitochondrial dynamics by promoting fusion and restraining fission, while preserving mitochondrial mass, enhancing autophagy/mitophagy and biogenesis ...
Chatnapa Panusatid   +3 more
wiley   +1 more source

Maternal education and child immunization: the mediating roles of maternal literacy and socioeconomic status

open access: yesThe Pan African Medical Journal, 2017
Introduction: previous studies in Nigeria have documented significant association between maternal education and child immunization. However, little is known about the pathway through which maternal education improves immunization uptake. This study aims
Saliu Adejumobi Balogun   +5 more
doaj   +1 more source

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