Northern Adriatic response to a wintertime bora wind event

The unprecedented suite of research activities that focused on the Adriatic in winter 2003 provided a multi-faceted view of bora events and the resulting oceanic response

Savoir caractériser les complémentarités entre cultures et élevage pour accompagner la reconception des systèmes de polyculture - élevage dans leurs transitions agroécologiques

International audienceIntegrated Corp-Livestock farming systems (ICLS) should be able to maximize the implementation of agro-ecologic practices. Crops feed livestock and manure fertilize crops, which creates a virtuous circle. However, integrated crop-livestock farming systems cover a diversity of agricultural systems without consensus on how to charaterize them,. As each form of ICLS has not the same aims, they also do not have the same economic and environmental performances. To archieve obtaining situations with the expected virtuous theoretical characteristics, these systems will have to implement different changes. This is wath we describe through the experience of four experimental farms and several communications made during the symposium : "Les polycultures-élevages : valoriser leurs atouts pour la transition agroécologique" in Dijon in October 2017, as well as results from analyzes and presentations of methods and tools developed for these systems.Les systèmes de polyculture-élevage ont théoriquement les moyens de maximiser la mise en oeuvre de pratiques agroécologiques : les cultures alimentent le troupeau dont les effluents fertilisent les terres selon un cercle vertueux. Cependant, le terme « polyculture-élevage » (PCE) masque une diversité de systèmes sans l’existence d’un consensus sur la façon de la caractériser. Or, chaque forme de PCE ne va pas viser les mêmes objectifs, ni avoir les mêmes performances environnementales et économiques. Pour atteindre des situations où les caractéristiques théoriques vertueuses attendues sont obtenues, ces systèmes auront des trajectoires différentes. C’est ce que nous montrons à travers l’expérience de 4 exploitations expérimentales et de présentations faites lors du colloque « Les polycultures-élevages: valoriser leurs atouts pour la transition agroécologique » à Dijon en Octobre 2017, ainsi que de résultats d’analyses et de présentations de méthodes et outils de conseil développés pour ces systèmes

The BLLAST field experiment: Boundary-Layer late afternoon and sunset turbulence

Due to the major role of the sun in heating the earth's surface, the atmospheric planetary boundary layer over land is inherently marked by a diurnal cycle. The afternoon transition, the period of the day that connects the daytime dry convective boundary layer to the night-time stable boundary layer, still has a number of unanswered scientific questions. This phase of the diurnal cycle is challenging from both modelling and observational perspectives: it is transitory, most of the forcings are small or null and the turbulence regime changes from fully convective, close to homogeneous and isotropic, toward a more heterogeneous and intermittent state. These issues motivated the BLLAST (Boundary-Layer Late Afternoon and Sunset Turbulence) field campaign that was conducted from 14 June to 8 July 2011 in southern France, in an area of complex and heterogeneous terrain. A wide range of instrumented platforms including full-size aircraft, remotely piloted aircraft systems, remote-sensing instruments, radiosoundings, tethered balloons, surface flux stations and various meteorological towers were deployed over different surface types. The boundary layer, from the earth's surface to the free troposphere, was probed during the entire day, with a focus and intense observation periods that were conducted from midday until sunset. The BLLAST field campaign also provided an opportunity to test innovative measurement systems, such as new miniaturized sensors, and a new technique for frequent radiosoundings of the low troposphere. Twelve fair weather days displaying various meteorological conditions were extensively documented during the field experiment. The boundary-layer growth varied from one day to another depending on many contributions including stability, advection, subsidence, the state of the previous day's residual layer, as well as local, meso- or synoptic scale conditions. Ground-based measurements combined with tethered-balloon and airborne observations captured the turbulence decay from the surface throughout the whole boundary layer and documented the evolution of the turbulence characteristic length scales during the transition period. Closely integrated with the field experiment, numerical studies are now underway with a complete hierarchy of models to support the data interpretation and improve the model representations.publishedVersio

Transformations polymorphiques induites par compression

LILLE2-BU Santé-Recherche (593502101) / SudocSudocFranceF

Les principales pathologies du pied rencontrées à l'officine (rôles et conseils du pharmacien)

LILLE2-BU Santé-Recherche (593502101) / SudocSudocFranceF

Aérosolthérapie par nébulisation (bonnes pratiques et normalisations)

L aérosolthérapie correspond à l inhalation par voie nasale ou buccale de certains médicaments (bronchodilatateurs, antibiotiques, fluidifiants bronchiques) transformés en aérosol dans le but de produire une action locale. L aérosolthérapie par nébulisation présente de nombreux avantages (délivrance rapide de doses élevées, traitement des zones difficiles d accès, limitations des effets indésirables). Il existe deux grands types de générateurs : pneumatiques et ultrasoniques. Chaque type d appareil aura ses avantages et ses inconvénients qu il faudra prendre en compte pour adapter le mieux possible le matériel à la pathologie, pour permettre un dépôt particulaire optimal. Dans tous les cas le générateur doit posséder un débit médicamenteux élevé, un volume mort faible et être conforme à la norme NF-EN 13544-1. Cette norme va fixer des règles de fabrication pour chaque élément du générateur, elle permet également de connaitre les performances et les caractéristiques de chaque appareil. Le pharmacien à un rôle essentiel, dans l éducation thérapeutique du patient. Il se doit de connaitre ce dispositif médical afin de vérifier la prescription du médecin et d expliquer le mieux possible le déroulement d une séance.LILLE2-BU Santé-Recherche (593502101) / SudocSudocFranceF

Studies on the transport of secretory granules in the magnocellular hypothalamic neurons of the rat. II. Action of vincristine on axonal flow and neurotubules in the paraventricular and supraoptic nuclei

Intrathecal administration of 20 mug of vincristine sulphate in the rat induced in vivo the formation of paracrystalline inclusions mainly in axonal processes. This is associated with an impairment in the migration of neurosecretory granules as shown by their accumulation in the perikarya of the magnocellular neurons. The granules are intermixed with numerous dense bodies of various shape, sometimes with a fibrillar content, and probably of lysosomal origin. In addition to the impairment of the flow of neurosecretory granules, there is also a striking accumulation of mitochondria and synaptic vesicles, and an apparent proliferation of the smooth endoplasmic reticulum. In the posterior lobe, the axonal endings contain a large number of neurosecretory granules, intermingled with bodies of varying shapes and electron density. Occasionally, a dense membrane surrounding a group of elementary granules is observed, reacting positively for acid phosphatase. This suggests an attempted crinophagia.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Vincristine-induced tubulin paracrystals in the nuclei of mammalian neurons

SCOPUS: ar.jinfo:eu-repo/semantics/publishe