Results 51 to 60 of about 1,478 (218)
Estratificação educacional no Brasil do século XXI
Dados: Revista de Ciências Sociais, 2011 Dans cet article, on examine le processus de stratification dans l'éducation brésilienne pendant la première décennie de notre siècle. On y étudie les principales approches et les modèles empiriques qui sont consacrés à ce sujet non seulement dans le ...
Arnaldo Mont'Alvão
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Canadian Journal of Statistics, Volume 53, Issue 3, September 2025.Abstract Response‐based sampling is often used in modelling rare events from large, imbalanced data for efficiency. When modelling the event with logistic regression, the sampling design may be adjusted for using sampling weights or an offset. We propose a stratified sampling design for modelling rare events with large data which improves on previous ...
Johanna de Haan‐Ward +2 more
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Pour un échantillonnage et un conseil agronomique raisonné, les outils d'aide à la décision [PDF]
Biotechnologie, Agronomie, Société et Environnement, 2011 To a sampling and personal fertility advice, the tools for decision support. Environmental and agronomic issues require always more well thought and suited farmer management of agricultural inputs; soil analysis is therefore an essential tool to support ...
Colinet, G. +7 more
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Revue Malienne d’Infectiologie et de Microbiologie, 2015 La prévalence du VIH a augmenté de 0,6 à 1,1 % entre 2001 et 2006 dans la région de Gao. En Afrique, la pandémie du VIH/SIDA affecte surtout les jeunes et se transmet en grande partie par voie sexuelle.
Y Cissoko +10 more
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Modelling connectivity at a regional scale during seasonal movements of the greater horseshoe bat
Journal of Applied Ecology, Volume 62, Issue 9, Page 2163-2176, September 2025.Studying pathways during high mobility periods is one of the main missing elements for effective conservation, particularly for small species such as bats. An acoustic, stratified sampling at both local and large scale provided sufficient spatial and temporal accuracy to model connectivity throughout the life cycle of bats. This framework can easily be
David Pinaud +3 more
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Methods in Ecology and Evolution, Volume 16, Issue 9, Page 2048-2066, September 2025.Abstract Mutualisms between autotrophs and heterotrophs that exchange nutrients are of pivotal importance in the ecology and evolution of life on Earth. However, investigation of holobiont trophic strategy (reliance on autotrophy vs. heterotrophy) is hampered by practical challenges in quantifying their diverse nutritional pathways.
Leonard Pons +8 more
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Echantillonnage de la colonne d'eau dans les écosystèmes aquatiques peu profonds
, 2007 Echantillonnage de la colonne d'eau dans les écosystèmes aquatiques peu ...
Quemeneur, Alphonse, Roucaute, Marc
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Probabilistic weighted Dirichlet process mixture with an application to stochastic volatility models
Canadian Journal of Statistics, Volume 53, Issue 2, June 2025.Abstract In this article, we propose a flexible Bayesian modelling framework and investigate the probabilistic weighted Dirichlet process mixture (pWDPM). The construction and properties of a probabilistic weight function are illustrated. The advantage of the pWDPM under the log‐squared transformed stochastic volatility (SV) model is demonstrated.
Peng Sun, Inyoung Kim, Ki‐Ahm Lee
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Echantillonnage et environnement.
, 1997 Cet ouvrage reprend le texte des contributions des différents intervenants au séminaire "Echantillonnage et Environnement" organisé par la Fondation Universitaire Luxembourgeoise en 1996.
Nicolas, Jacques
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Knowledge and Management of Aquatic Ecosystems, 1994 L'étude s'est déroulée sur une portion de 25 Km de rivière de première catégorie du Pas-de-Calais, le long de laquelle se trouvent 4 salmonicultures contaminées par les virus SHV et/ou NHI.
GIRAUD P. +5 more
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