Results 51 to 60 of about 53,653 (163)

L'evolution thermique de la matière organique des sédiments : applications d'une simulation mathématique. Potentiel pétrolier des bassins sédimentaires de reconstitution de l'histoire thermique des sédiments Thermal Evolution of Organic Matter in Sediments : Application of a Mathematical Simulation. Petrleum Potential of Sedimentary Basins and Reconstructing the Thermal History of Sediments

Oil & Gas Science and Technology, 2006
Au moyen d'un modèle mathématique, on simule la dégradation thermique de la matière organique des sédiments. Les applications possibles de ce modèle concernent la recherche des zones favorables pour la prospection de l'huile ou du gaz, la détermination ...
Tissot B., Espitalié J.
doaj   +1 more source

Composition and fate of organic matter in submarine cave sediments : implications for the biogeochemical cycle of organic carbon [PDF]

, 1991
L'étude de la composition biochimique des sédiments d'une grotte sous-marine méditerranéenne entre 1985 et 1987 montre une forte diminution des concentrations en chloropigments et lipides dans la zone terminale obscure.
Fichez, Renaud
core  

Opinion and report of the French Agency for Food, Environmental and Occupational Health & Safety (ANSES) on the assessment of the impact of fox population dynamics on public health

Food Risk Assess Europe, Volume 3, Issue 2, April 2025.
ABSTRACT The Red Fox (Vulpes vulpes) can be hunted as a game species. It may also be listed as a “species likely to cause damage” (ESOD – the acronym in French), for public health reasons among others. Conversely, benefits linked to the presence of foxes are also put forward, such as the predation of rodents carrying zoonotic agents.
Emmanuelle Gilot‐Fromont, Isabelle Villena, Elsa Bonnaud, Claude Fischer, Etienne Giraud, Annick Linden, François Meurens, Carine Paraud, Francis Raoul, Céline Richomme, Sandrine Ruette, Michel Trommetter, Isabelle Vallée, Gilles Meyer, Xavier Bailly, Catherine Belloc, Stéphane Bertagnoli, Alain Boissy, Séverine Boullier, Henri‐Jean Boulouis, Eric Cardinale, Aurélie Courcoul, Alice De Boyer Des Roches, Barbara Dufour, Veasna Duong, Lionel Grisot, Claire Guinat, Nadia Haddad, Elsa Jourdain, Hervé Juin, Sophie Le Bouquin‐Le Neveu, Caroline Le Maréchal, Sophie Le Poder, Yves Millemann, Pierre Mormède, Carole Peroz, Claire Ponsart, Claude Saegerman, Jean‐François Valarcher, Isabelle Vallée, Agnès Waret‐Szkuta, Natacha Woronoff‐Rehn, Laura Maxim, Louis‐Georges Soler, Bénédicte Apouey, Luc Baumstark, Céline Bonnet, Thierry Brunelle, France Caillavet, Alain Carpentier, Thomas Coutrot, Cécile Detang‐Dessendre, Serge Garcia, Julien Gauthey, Emmanuelle Lavaine, Christine Le Clainche, Marc Leandri, Youenn Loheac, Sélim Louafi, Eric Plottu, Elodie Rouviere, Maïder Saint‐Jean, Denis Salles, Léa Tardieu, Jean‐Christophe Vergnaud, Philippe Fravalo, Frédéric Auvray, Mickaël Boni, Frédéric Borges, Gilles Bornert, Frédéric Carlin, Catherine Chubilleau, Monika Coton, Georges Daube, Noémie Desriac, Florence Dubois‐Brissonnet, Michel Federighi, Michel Gautier, Michèle Gourmelon, Sandrine Guillou, Stéphane Guyot, Didier Hilaire, Nathalie Jourdan‐da Silva, Claire Le Henaff‐Le Marrec, Sandra Martin‐Latil, Jeanne‐Marie Membré, Eric Oswald, Nadia Oulahal, Pascal Piveteau, Sabine Schorr‐Galindo, Régine Talon, Isabelle Villena, Emmanuelle Robardet, Nathalie Arnich, Karine Fiore, Florence Etoré, Véronique Raimond, Catherine Collignon   +97 more
wiley   +1 more source

Variations in soil fertility under cotton crops in the Bénoué cotton-growing area in Northern Cameroon [PDF]

, 2008
The status of soils under cotton crops must be compared before and after a sufficiently long cropping period in order to detect variations that have occurred.
Fesneau, Corinne, Guibert, Hervé, M'Biandoun, Mathurin   +2 more
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Organic Donor–Acceptor–Donor Trimers Nanoparticles Stabilized by Amphiphilic Block Copolymers for Photocatalytic Generation of H2

Macromolecular Rapid Communications, Volume 45, Issue 18, September 2024.
A versatile platform is developed for creating functional π‐conjugated organic nanoparticles stabilized by amphiphilic block copolymers for green H2 photocatalytic generation. The donor–acceptor–donor trimers nanoparticles show enhanced photocatalytic activity (≈0.6 mmol g⁻¹ h⁻¹) for H₂ production via water splitting. Abstract Photocatalytic generation
Thiago R. Guimarães, Alisha Khan, Hynd Remita, Jean‐Louis Bobet, Eric Cloutet   +4 more
wiley   +1 more source

Effet de divers modes de restitution de pailles de mil sur le niveau et la nature du stock organique dans deux sols sableux tropicaux (Sénégal) [PDF]

, 1987
A partir d'expérimentations au champ sur sols sableux "Dior" et "Dek", cultivés en mil ou arachide selon divers modes de restitutions des pailles, il est montré que ce sont essentiellement les traitements "mulch" qui conduisent à des augmentations ...
Chopart, J.L., Dancette, F., Feller, Christian   +2 more
core  

Impact of multilamellar formulations on stratum corneum lipid organization and epidermal lipid barrier enhancement (Part II)

International Journal of Cosmetic Science, Volume 46, Issue 4, Page 578-589, August 2024.
The study shows the effectiveness of saturated phosphatidylcholine‐based multilamellar cream in restructuring the stratum corneum's lipid matrix in vivo. Through transmission electron microscopy, notable enhancements in lipid lamellae density and length are observed, along with a significant increase in key ceramides and free fatty acid levels ...
Joachim W. Fluhr, Razvigor Darlenski, Stephan Daehnhardt‐Pfeiffer, Martin Albrecht   +3 more
wiley   +1 more source

Optimisation de la méthode sous réacteur Johnson-su pour la production d'engrais biologique par compostage des déchets de manioc à Ngotto, Région de l’Est Cameroun

African Journal on Land Policy and Geospatial Sciences
La forte croissance démographique et la standardisation des modes de consommation sont à l’origine d’une forte demande de biens alimentaires. Malheureusement, les changements climatiques mettent en mal les systèmes de production.
FOYET GANKAM
doaj   +1 more source

The future of food safety: possible trends for the years 2022‐2032 and their influence on food safety and nutrition

Food Risk Assess Europe, Volume 2, Issue 3, July 2024.
Abstract Over the next decade, demographic, societal, technological, economic, environmental, and political factors are expected to significantly influence the agri‐food chain. Demographic shifts, characterised by an aging population and sustained migration, along with evolving consumer demands, will drive a greater emphasis on sustainability.
Gary Delalay, Cornelia Wagner, Thomas Lüthi   +2 more
wiley   +1 more source

Contribution de la géochimie organique à une esquisse paléoécologique des shistes bitumeux du Toarcien de l'Est du bassin de Paris. Etude de la matière organique insoluble (kérogènes) Contribution of Organic Geochemistry to a Paleoecological Sketch of Toarcian Oil Shales in the Eastern Paris Basin. Analysis of Insoluble Organic Matter (Kerogens)

Oil & Gas Science and Technology, 2006
L'étude des kérogènes des schistes cartons du Toarcien inférieur du bassin de Paris au niveau de l'affleurement oriental (du Luxembourg au Morvan) confirme l'homogénéité globale de la matière organique dans cette formation.
Huc A. Y.
doaj   +1 more source