Qualité de service dans des environnements Internet mobile

PARIS-BIUSJ-Thèses (751052125) / SudocCentre Technique Livre Ens. Sup. (774682301) / SudocPARIS-BIUSJ-Mathématiques rech (751052111) / SudocSudocFranceF

Changes in lipid and fatty acid contents of gonad during the reproductive cycle of the Mediterranean swordfish Xiphias gladius

International audienceSwordfish Xiphias gladius is a large pelagic fish distributed worldwide and exploited for human consumption, however there is limited knowledge about its reproductive biology, especially regarding lipid dynamic in gonads. In teleost fish, reproductive success and offspring survival are associated to lipid availability for gamete synthesis. This study investigated the lipid composition, including lipid classes and fatty acids (FA) of cell membrane and reserve lipids (i.e., polar and neutral lipids, respectively; PL and NL), along female and male gonad development of a swordfish population from waters surrounding Corsica Island in the Mediterranean Sea. Overall, swordfish gonads contained 20% of total FA), while 20:5n-3 and 20:4n-6 were minor (3-6% of total FA) and varied little with maturation. 22:6n-3 and 18:1n-9 were selectively allocated to the ovarian maturation (increased in concentration and in proportion with maturation) until spawning. Finally, swordfish gonads might represent a good food source for humans given that 150 g of swordfish ovaries can cover the daily requirements in omega-3 for humans, but research on pollutants should also be conducted to evaluate their implications on the reproduction output of this species, and on the safety of swordfish gonads for human consumption

Vivre le territoire et faire la ville autrement ?

La ville et le territoire sont confrontés, en tant que construits sociaux, à des transformations rapides qui posent la question des mécanismes de résilience, des nouvelles formes d’action et du rôle des acteurs, publics ou privés, qui prennent en compte les bouleversements en cours. Ainsi, la créativité et l’innovation se trouvent au cœur de la réflexion urbaine et territoriale. L’ouvrage se structure autour de trois grands champs de réflexion : d’abord celui de l’innovation, de la culture, et de la formation en relation avec le développement territorial ; ensuite l’environnement, vu comme un bien public, notamment grâce à sa gestion, sa protection et la participation citoyenne ; et enfin la gouvernance, la planification et le projet urbain vus à travers le prisme des pratiques, expériences et mobilisations.Current mutations of cities and territories raise the question of new forms of action and the role of public and private actors. Creativity and innovation are at the heart of the reflection. This book provides answers on issues of urban innovation, territorial development and living together in France and Brazil