eKhSACIR інституційному репозитарії Харківської державної академії культури
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Préserver et exploiter la biodiversité des souches de bactéries pathogènes animales. Importance de la réglementation en vigueur
No full textSession 2 : Agents pathogènes - bio-agresseurs - Session plénière : Le CIRMNational audienc
Réduction des émissions de gaz à effet de serre d’origine agricole dans l’Union Européenne : Une analyse à partir des coûts marginaux d’abattement
No full textInternational audienceWe analyze the cost-effective contribution of agriculture to mitigation of the EU greenhouse gas emissions, and analyze how it varies in both space and time. We endogenously account for agricultural sources of methane and nitrous oxide. We take advantage of the large variability in agricultural input and output prices in 2007-2012 to quantify how marginal abatement costs curves were impacted at EU and regional levels.The results show an important EU mitigation potential, but contrasted impacts across space and time. Parsimonious yet flexible, non-linear reduced form of abatement supply curve for each EU region and each year are estimated.Les auteurs analysent la contribution coût-efficace de l'agriculture à l'atténuation de l'effet de serre au sein de l'UE et la variation de ce potentiel dans le temps et dans l’espace. Ils intégrent à l’analyse les sources agricoles de méthane et de protoxyde d’azote. Ils utilisent la variabilité temporelles des prix des intrants et des produits agricoles entre 2007 et 2012 pour quantifier l’impact sur les courbes des coûts de marginal d’abattement aux niveaux européen et régional. Les résultats montrent un potentiel d'atténuation substantiel dans l’agriculture européenne, avec des impacts contrastés dans le temps et dans l'espace. Ils estiment des formes réduites non-linéaires de la courbe d'offre d’abattement pour chacune des régions de l'UE et chaque année considérée
Added value to local breeds through goods and services: a diversity of ways of valorisation
No full textInternational audienc
A new algorithm for GWAS panel optimization, applications in plant genetics
No full textInternational audienc
Alpha-1 microglobulin as a potential therapeutic candidate for the treatment of high blood pressure and oxidative stress in the stox1 preeclampsia-model
No full textInternational audienc
Estimating the Fisher information matrix in latent variable models
No full textInternational audienceThe Fisher information matrix (FIM) plays a key role in statistics. It is crucial in practice not only for evaluating the precision of parameter estimations, but also for statistical testing or experimental designs. In many latent variable models, the evaluation of the observed FIM is nonelementary due to the unobserved variables. Several methods have then been proposed to estimate the observed FIM. Among the most frequently used approaches are Monte-Carlo methods or iterative algorithms derived from the missing information principle. These methods however require to compute second derivatives of the complete data log-likelihood which has some disadvantages from a computational point of view. We propose an estimator of the observed FIM which only requires to compute the first derivatives of the complete data log-likelihood with respect to the parameters. Indeed, we consider the empirical first order moment estimate of the covariance matrix of the score. We derive a stochastic approximation algorithm for computing this estimator when its expression is not explicit. We study the asymptotic properties of the proposed estimator and of the corresponding stochastic approximation algorithm. Some numerical experiments are performed in mixed-effects models and mixture models to illustrate the theoretical results
Wood and leaf strategies in a low-elevation rainforest of Western Ghats
No full textInternational audienc
Deuterium compared to 15n-labeling to determine digestive and metabolic fate of milk proteins
No full textInternational audienc
