Results 21 to 30 of about 1,334,914 (244)

Oxidative Stress and Antioxidant Defense

open access: yesThe World Allergy Organization Journal, 2012
Reactive oxygen species (ROS) are produced by living organisms as a result of normal cellular metabolism and environmental factors, such as air pollutants or cigarette smoke.
E. Birben   +4 more
semanticscholar   +1 more source

Reactive Oxygen Species, Oxidative Damage, and Antioxidative Defense Mechanism in Plants under Stressful Conditions

open access: yes, 2012
Reactive oxygen species (ROS) are produced as a normal product of plant cellular metabolism. Various environmental stresses lead to excessive production of ROS causing progressive oxidative damage and ultimately cell death.
Pallavi Sharma   +3 more
semanticscholar   +1 more source

Early substance consumption and problematic use of video games in adolescence

open access: yesFrontiers in Psychology, 2015
Substance use as well as use of video games is frequent among young people. The purpose of this research was to study the links between the use of video games and the consumption of various substances such as alcohol, tobacco or cannabis at adolescence ...
Adélaïde eCOËFFEC   +6 more
doaj   +1 more source

Early development of turn-taking in vocal interaction between mothers and infants

open access: yesFrontiers in Psychology, 2015
Infants are known to engage in conversation-like exchanges from the end of the second month after birth. These ‘protoconversations’ involve both turn-taking and overlapping vocalization. Previous research has shown that the temporal organization of adult-
Maya eGratier   +5 more
doaj   +1 more source

Psychological disorders and ecological factors affect the development of executive functions: Some perspectives

open access: yesFrontiers in Psychiatry, 2016
The links between deficits in executive functions (EF) (e.g., mental flexibility, inhibition capacities...), and some psychological disorders (e.g., anxiety and depressive disorders) has been investigated in the past decades or so. Observations evidenced
Rafika ZEBDI   +3 more
doaj   +1 more source

Amadou Hampâté Bâ, « Défense et illustration » de la tradition orale [PDF]

open access: yesSynergies Algerie, 2017
Au-delà du simple fait de communiquer à travers le parler, l’oralité, une dimension qui fait la particularité de certaines réalités sociales, notamment en Afrique, est un système à travers lequel se conçoivent les diverses composantes du réel.
Attef Bouzidi, Saddek Aouadi
doaj  

La Universidad en España y Colombia en la era de la globalización

open access: yesRevista Humanidades, 2016
En el presente artículo se revisan los asuntos más relevantes relacionados con la Universidad en España y Colombia actualmente. A pesar de sus diferencias, ambos países comparten problemáticas comunes en el mundo globalizado, de economía de mercado y de
Santiago Ospina García   +1 more
doaj   +1 more source

Interferon-γ and Hypoxia Priming Have Limited Effect on the miRNA Landscape of Human Mesenchymal Stromal Cells-Derived Extracellular Vesicles

open access: yesFrontiers in Cell and Developmental Biology, 2020
Mesenchymal stromal cell (MSC)-based cell therapy has received great interest in regenerative medicine. Priming the cells during the culture phase can improve their efficacy and/or survival after injection.
Juliette Peltzer   +11 more
doaj   +1 more source

Defense Against Adversarial Attacks Using High-Level Representation Guided Denoiser [PDF]

open access: yes2018 IEEE/CVF Conference on Computer Vision and Pattern Recognition, 2017
Neural networks are vulnerable to adversarial examples, which poses a threat to their application in security sensitive systems. We propose high-level representation guided denoiser (HGD) as a defense for image classification.
Fangzhou Liao   +5 more
semanticscholar   +1 more source

Development of a spatial sampling protocol using GIS to measure health disparities in Bobo-Dioulasso, Burkina Faso, a medium-sized African city

open access: yesInternational Journal of Health Geographics, 2017
Background Many cities in developing countries experience an unplanned and rapid growth. Several studies have shown that the irregular urbanization and equipment of cities produce different health risks and uneven exposure to specific diseases ...
Daouda Kassié   +5 more
doaj   +1 more source

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