Results 81 to 90 of about 800,792 (268)

CALL: Symposium der AG Medienkultur und Bildung der GfM: Ästhetisch-künstlerische Auseinandersetzungen mit digitalen Medien im Schulunterricht, am 17. und 18. Juni 2021. Einreichfrist: 15. März 2021

open access: yesMedienimpulse, 2021
Die AG Medienkultur und Bildung der Gesellschaft für Medienwissenschaft veranstaltet im Juni ein Symposium zum Thema: „ Ästhetisch-künstlerische Auseinandersetzungen mit digitalen Medien im Schulunterricht“. Die Einreichfrist endet mit 15. März 2021.
Katharina Kaiser-Müller
doaj  

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

open access: yesFEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang   +4 more
wiley   +1 more source

Vocabulary instruction through blended learning and multimedia softwares in Iranian ESP classes [PDF]

open access: yesJournal of English Language Teaching and Learning, 2015
The purpose of this study was to investigate the impact of blended learning and multimedia softwares on Iranian ESP students' vocabulary learning. To this end, 120 Iranian ESP learners were assigned to two groups: the experimental and control groups. The
Sadegh Khalili   +2 more
doaj  

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

open access: yesFEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta   +3 more
wiley   +1 more source

The therapeutic opportunities and pitfalls of using iron ion chelators to treat neurodegenerative diseases

open access: yesFEBS Letters, EarlyView.
Although too much iron in the brain promotes neurodegeneration, iron ion chelators have had mixed effects in clinical trials. This review explains why; some chelators do not render the iron redox‐inactive (e.g., L1) whereas others do (e.g., desferrioxamine).
Barry Halliwell
wiley   +1 more source

An epithelial GPR35 isoform supports tumor‐associated transcriptional and metabolic phenotypes

open access: yesFEBS Letters, EarlyView.
GPR35 generates two functionally distinct isoforms with previously unresolved roles. GPR35‐short mediates immune‐cell chemotaxis, while GPR35‐long is enriched in colorectal cancer epithelium, where it supports increased metabolism, proliferation, and tumor‐associated transcriptional programs.
Jørgen D. Rønneberg   +14 more
wiley   +1 more source

Sequencing affective preparation before AI-mediated instruction: a quasi-experimental study of L2 writing outcomes and sustainability among multilingual undergraduate learners

open access: yesFrontiers in Education
This mixed-methods quasi-experimental study examined whether sequencing affective preparation before AI-supported instruction enhanced second language (L2) writing outcomes and promoted sustained learning among multilingual learners in an underserved ...
S. Sheeba Sisly   +2 more
doaj   +1 more source

Structure‐forward targeting of claudins with synthetic binders

open access: yesFEBS Letters, EarlyView.
Claudins form the paracellular barriers between epithelial and endothelial tissues at tight junctions and are targets for molecular binders with the goal of modulating barrier permeability. Claudin‐binding molecules are relevant in drug delivery or in altering claudin interactions with disease‐causing proteins.
Alex J. Vecchio
wiley   +1 more source

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