Results 21 to 30 of about 126 (86)

Etude d’impacts des activités pétrolières sur la germination de l’espèce Hibiscus Asper et potentiel risque d’intoxication de la chaîne alimentaire à Moanda [PDF]

open access: yesMouvements et Enjeux Sociaux, 2023
Les activités d’exploitation pétrolière affectent la qualité des sols agricoles de Muanda et exposent les consommateurs des légumes au risque d’intoxication chimique via la chaîne alimentaire. Le but de ce travail, est d’analyser la toxicité des sols des
Gurvitch NSIALA OYANGALA   +5 more
doaj  

Les déchets plastiques dans l’océan au cœur de l’Aquathon d’Abidjan, Côte d’Ivoire

open access: yesNatures Sciences Sociétés, 2021
Un Aquathon a été organisé les 20 et 21 novembre 2019 à Abidjan (Côte d’Ivoire) sur le thème des déchets plastiques dans l’océan. Trente participants de 18 structures publiques et privées ont expérimenté les outils et méthodes collaboratifs de l ...
Koumi Ahou Rachel   +9 more
doaj   +1 more source

Disaggregated PROBA-V data allows monitoring individual crop phenology at a higher observation frequency than Sentinel-2

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2021
Satellite-based monitoring of crop phenology is commonly built on the analysis of Vegetation Index (VI) time series by extracting phenological metrics.
Henry Rivas   +4 more
doaj   +1 more source

L'évaluation du risque toxique dans les milieux aquatiques – Avant-propos

open access: yesSciences, Eaux & Territoires, 2010
L'évaluation du risque toxique dans les milieux aquatiques – Avant ...
D. PONT, J. GARRIC
doaj   +1 more source

Quelles nouvelles perspectives pour évaluer la qualité des milieux aquatiques ?

open access: yesSciences, Eaux & Territoires, 2010
Les articles présentés dans ce numéro proposent un panorama des connaissances et des développements en cours dans le domaine de l'évaluation du risque toxique (présence versus effets des contaminants, biomarqueurs, exposition contrôlée in situ, traits ...
D. PONT, J. GARRIC
doaj   +1 more source

Effects of diclofenac on sentinel species and aquatic communities in semi-natural conditions

open access: yesEcotoxicology and Environmental Safety, 2021
Due to the potential hazard of diclofenac on aquatic organisms and the lack of higher-tier ecotoxicological studies, a long-term freshwater mesocosm experiment was set up to study the effects of this substance on primary producers and consumers at ...
S. Joachim   +17 more
doaj   +1 more source

Tracking, feather moult and stable isotopes reveal foraging behaviour of a critically endangered seabird during the non‐breeding season

open access: yesDiversity and Distributions, Volume 23, Issue 2, Page 130-145, February 2017., 2017
Abstract Aim The movement patterns of marine top predators are likely to reflect responses to prey distributions, which themselves can be influenced by factors such as climate and fisheries. The critically endangered Balearic shearwater Puffinus mauretanicus has shown a recent northwards shift in non‐breeding distribution, tentatively linked to ...
Rhiannon E. Meier   +11 more
wiley   +1 more source

ORCHIDEE-CROP (v0), a new process-based agro-land surface model: model description and evaluation over Europe [PDF]

open access: yesGeoscientific Model Development, 2016
The response of crops to changing climate and atmospheric CO2 concentration ([CO2]) could have large effects on food production, and impact carbon, water, and energy fluxes, causing feedbacks to the climate. To simulate the response of temperate crops to
X. Wu   +23 more
doaj   +1 more source

Analysis of Wave Solutions of an Adhenovirus‐Tumor Cell System

open access: yesAbstract and Applied Analysis, Volume 2012, Issue 1, 2012., 2012
We discuss biological background and mathematical analysis of glioma gene therapy for contributing to cancer treatment. By a reaction‐diffusion system, we model interactions between gliom cells and viruses. We establish some sufficient conditions on model parameters which guarantee the permanence of the system and the existence of periodic solutions ...
Baba Issa Camara   +2 more
wiley   +1 more source

Depth dependence of soil organic carbon additional storage capacity in different soil types by the 2050 target for carbon neutrality [PDF]

open access: yesSOIL
Land planning projects aiming to maximize soil organic carbon (SOC) stocks are increasing in number and scope, often in line with the objective to reach carbon neutrality by 2050.
C. Chirol   +6 more
doaj   +1 more source

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