Search results for " quality."
showing 10 items of 2995 documents
Biogeographical patterns of soil molecular microbial biomass
2011
Affiche - résumé. Session GC: Microbes in the Changing Environmenl: Global Climate Change and Soif under Human Impact; International audience; The spatial organization of soil microbial communities over large areas and the identification of environmental factors structuring their distribution have been liUle investigated. The overall objective of this study was to determine the spatial paUerning of microbial biomass in soils on wide extent and to rank the environmental fiUers most influencing this distribution, by using the French Soil Quality Monitoring Network. This network covers ail the French terrilory and soils were sampled at2,150 sites along a systematic grid sampling. The soil DNA …
Spatio-temporal dynamics of weed seed eating carabid species in agricultural mosaics: variation of annual habitat quality of oil seed rape and role o…
2017
National audience; Carabid beetles are considered as important contributors to the regulation of weeds and recent studies have shown that weed seed predation by carabids may partly substitute for herbicide use in agriculture. Enhancing this ecosystem service requires to understand the spatio-temporal distribution of these species during the cropping season. Infra-annual variation in the spatial distribution of ground beetles within agricultural mosaics is less documented but of prime importance given that agricultural landscapes are highly dynamics. Indeed, crop phenology, agricultural operations but also habitat requirements during life cycle can lead to a redistribution of individuals bet…
Evaluation de bactéries d’intérêt pour l’agriculture ou l’environnement (biofertilisant) ; cas des inoculants à Bradyrhizobium japonicum, bactérie fi…
2014
EA MERS CT3; Master
Identification de bactéries d’intérêt pour l’agriculture issues d’inoculants commerciaux
2014
Rapport de Stage de 1ère année de BTS EA MERS CT3; DEUG
Sensitivity of water quality of three contrasted north-eastern French watersheds to climate change (2006-2100) using SWAT model
2015
International audience; The SWAT model has been chosen to assess climate change impacts on water quality of three subbassins ofnorth-eastern France: located on headwaters of three major rivers of France (Loire, Seine and Rhône riversrespectively). These watersheds have a size less than 3000km² and present different hydrogeological andgeological characteristics. Land-use as well as their agricultural practices being also diversified, the threewatersheds studied constitute a relevant experimentation area. The goal of this study is to assess local vulnerability of surface water quality (sediments, nutrients,dissolved oxygen loads) to climate change (2006-2100) following the Representative Conc…
Role of vacuolar sulfate in nutritional quality of pea seeds
2022
Grain legumes have a key role to play in both agroecological and food transitions. Indeed, these plants are able to accumulate large amounts of proteins in their seeds even in the absence of nitrogen fertilization thanks to symbiotic N2 fixation in the root nodules. However, legumes are exposed to abiotic stresses, including nutrient deficiencies, making it important to optimize nutrient use efficiency for maintaining seed protein content and quality. Seed protein quality refers to the ability of the seed proteins to meet the body’s requirements for essential amino acids. It strongly depends on the amino acid balance, which determines protein digestibility. In pea (Pisum sativum) seeds, met…
Role of vacuolar sulfate in the nutritional quality of pea seeds
2022
Legumes have a key role to play in both agroecological and food transitions due to their ability to accumulate large amountsof seed proteins without nitrogen fertilization thanks to symbiotic N2 fixation in the root nodules. However, in agroecologicalsystems, legumes are more exposed to nutrient deficiencies, including sulfur deficiency, than in conventional systems, makingit important to optimize nutrient use efficiency for maintain seed protein quality, in particular the level of (semi) essentialamino acids like methionine and cysteine. These sulfur-containing amino acids are synthetized through the sulfur metabolicpathway starting from sulfate reduction. Sulfate is taken up from the soil…
Lasergrammetry and high precision topography measurements to study a complex fortified building: Tour de la Pelote (Besançon, France)
2018
International audience
How Good Is This Page? Benefits and Limits of Prompting on Adolescents’ Evaluation of Web Information Quality
2019
International audience; The present study examined adolescents' detection of features that affect the quality of Web information. In Experiment 1, participants (12-16 years old) rated the goodness/usefulness of four Web-like documents for a simulated study assignment. Each document came with an issue that potentially undermined its quality. Two documents had source-related issues (i.e., non-competent author, outdated) and two had content-related issues (i.e., topic mismatch, poor readability). Most students failed to notice the issues, including topic mismatch. The participants also produced inconsistent evaluations of topic-match, readability, author competence and currency. In Experiment …
Capital humain et croissance : l'apport des enquêtes internationales sur les acquis des élèves
2006
The estimation of the relationship between education and economic growth is marked by contradictions. These contradictions underline the lack of precision characterising indicators of human capital. This paper constructs new indicators based on a pool of international surveys concerning pupil assessment. Thus, our new database, which includes 105 countries, makes it possible to confirm or not the positive relationship between education and growth. Taking into account the endogeneity of education, we measure a positive effect of qualitative indicators of human capital and the growth of countries between 1960 and 2000. The contribution of education to growth therefore appears significant,…