Results 81 to 90 of about 13,204,041 (315)

Efficacy of contact tracing for the containment of the 2019 novel coronavirus (COVID-19)

open access: yesJournal of Epidemiology and Community Health, 2020
Objective Contact tracing is a central public health response to infectious disease outbreaks, especially in the early stages of an outbreak when specific treatments are limited.
M. Keeling   +3 more
semanticscholar   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Technology-Enabled Learning and the Benefits and Challenges of Using the Community of Inquiry Theoretical Framework

open access: yesInternational Journal of E-learning and Distance Education, 2019
The Introduction to Technology-Enabled Learning (TEL)MOOC was intended to engage teachers worldwide who work in any level of education and are interested in technology-enabled learning and Open Educational Resources.
Martha Cleveland-Innes   +4 more
doaj  

Study on Migrants and Formation Mechanism of Polyglycolic Acid Oligomers in Three Distinct Application Scenarios

open access: yesZhipu Xuebao
Poly (glycolic acid) (PGA) is an environmentally friendly, biodegradable polymer commonly utilized in biomedical applications. Due to its high thermal deformation temperature, favorable mechanical properties, and effective gas barrier capabilities, PGA ...
Sheng-feng LIU   +7 more
doaj   +1 more source

Coming together to define membrane contact sites

open access: yesNature Communications, 2019
Close proximities between organelles have been described for decades. However, only recently a specific field dealing with organelle communication at membrane contact sites has gained wide acceptance, attracting scientists from multiple areas of cell ...
L. Scorrano   +14 more
semanticscholar   +1 more source

Mechanisms of IgE‐mediated food allergy and the role of allergen‐specific B cells

open access: yesFEBS Letters, EarlyView.
Food allergy arises when allergen‐specific B cells preferentially produce immunoglobulin E (IgE) antibodies against harmless foods. This article explains the mechanisms driving IgE‐mediated reactions, highlights the central role of these B cells, and discusses how natural tolerance (NT) and oral immunotherapy (OIT) can reshape allergic immune responses.
Juan‐Felipe López   +2 more
wiley   +1 more source

Sutures and contact homology I

open access: yes, 2010
We define a relative version of contact homology for contact manifolds with convex boundary, and prove basic properties of this relative contact homology.
Cannas da Silva   +16 more
core   +1 more source

The enhanced heat source model and its verification of unsteady heat transfer simulation in laser quenching based on experiment

open access: yesCase Studies in Thermal Engineering
Laser hardening, also known as laser phase transformation hardening, is a critical surface modification technology. In current engineering practice, the design of process parameters primarily relies on simulation. However, variations in actual conditions
Yutong Guo   +4 more
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

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