Search results for "RAV"
showing 10 items of 5866 documents
Alice au pays des hôtels : de l'autre côté du miroir
2009
09042
Guide méthodologique d'analyse de la question enseignante: initiative pour la formation des enseignants en Afriqe subsaharienne (TTISSA) : guide pour…
2011
Ce guide vise à permettre une analyse des différentes dimensions de la question enseignante dans différents pays, avec l'objectif de construire une vision globale de cette question. Le travail qu'il vise à soutenir n'est donc pas descriptif mais plutôt analytique. Le but n'est pas de décrire tel ou tel aspect du système, tels que le déploiement des enseignants ou la formation, des fonctions, mais plutôt d'analyser les situations existantes et les résultats obtenus et de tenter d'identifier la gamme des options possibles dans le pays . L'analyse permet d'identifier les espaces de dialogue pour définir la politique de l'enseignant
The limits of minimum income policies : the oppurtunity to pass the social management of exclusion
1997
A la lumière de l’actuel débat théorique en faveur de l’octroi d’un revenu minimum, nous nous proposons de révéler les apports et les limites de la politique française de lutte contre l’exclusion du Revenu Minimum d’insertion. Après avoir mis en évidence la nécessité de dépassement de l’actuelle pratique d’assistance et montré la nécessité sociétale d’évoluer vers un mode renouvelé de partage du revenu et du travail dans la société, nous montrons que cette « utopie progressiste » bute sur un obstacle économique perceptible dans la carence des possibilités de financement du partage du temps de travail. L’origine de cette carence est à rechercher dans la spoliation d’une partie du revenu glob…
Pour une démarche prospective en quatre étapes : une expérience régionale, une collaboration européenne, un secteur d'activité
2001
A prospective approach along four lines : a regional experience, an European collaboration, a sector of activity The prospective approach must be based on a shared diagnosis, which combines quantitative and qualitative data, serves as main theme in order to suggest some strategies of actions. At the moment here is not a real labour shortage in the hotel and catering sector in Burgundy. The main problem is to improve the conditions and organisation of the work time in order to reduce the employees' leaving from the industry.
Le système technologie, marché du travail et gestion de la main d'oeuvre : l'exemple de l'industrie électronique et électrique française au Brésil
1983
International audience
Primary stroke prevention worldwide:translating evidence into action
2021
Abstract: Stroke is the second leading cause of death and the third leading cause of disability worldwide and its burden is increasing rapidly in low-income and middle-income countries, many of which are unable to face the challenges it imposes. In this Health Policy paper on primary stroke prevention, we provide an overview of the current situation regarding primary prevention services, estimate the cost of stroke and stroke prevention, and identify deficiencies in existing guidelines and gaps in primary prevention. We also offer a set of pragmatic solutions for implementation of primary stroke prevention, with an emphasis on the role of governments and population-wide strategies, includin…
Generalist invasion in a complex lake food web
2023
Invasive species constitute a threat not only to native populations but also to the structure and functioning of entire food webs. Despite being considered as a global problem, only a small number of studies have quantitatively predicted the food web-level consequences of invasions. Here, we use an allometric trophic network model parameterized using empirical data on species body masses and feeding interactions to predict the effects of a possible invasion of Amur sleeper (Perccottus glenii), on a well-studied lake ecosystem. We show that the modeled establishment of Amur sleeper decreased the biomasses o ftop predator fishes by about 10%–19%. These reductions were largely explained by inc…
La GTT, metodologia non invasiva per caratterizzare lo strato esterno degradato dei manufatti lapidei
2008
In questo lavoro viene descritta una metodologia non invasiva ne, tanto meno, distruttiva per studiare il degrado degli strati superficiali dei manufatti lapidei, correlandolo ai parametri di resistenza meccanica. La metodologia adopera come strumento diagnostico la propagazione delle onde elastiche nel mezzo in esame. In particolare, considerando che l'ordine di grandezza degli spessori ricercati è compreso tra le frazioni di millimetro e pochi centimetri, le frequenze delle onde elastiche utilizzabili sono quelle ultrasoniche, dalle decine di kHz ai MHz (e quindi, con velocità di propagazione dell'ordine di 4000 m/s, con lunghezze d'onda dai centimetri alle frazioni di millimetro). Questa…
Application of liquid-liquid partition chromatography in the simultaneous purification of sex-hormone-binding globulin and corticosteroid-binding glo…
1987
Two human serum proteins, corticosteroid-binding globulin (CBG) and sex-hormone-binding globulin (SHBG), were purified to homogeneity by the application of a combination of three different modes of chromatography. Human pregnancy serum was fractionated with ammonium sulphate. SHBG (50% pellet) and CBG (80% pellet) were then purified by affinity chromatography on tresyl-activated Sepharose with 15-aminopentadecanoic acid (for SHBG) and 1,12-diaminododecane (for CBG) as spacers and 17 zeta-aminoethyl-5 alpha-androstan-3 beta,17-diol (for SHBG) and 17 alpha-hydroxy-4-androsten-3-one-17 beta-carboxylic acid (for CBG) as specific ligands for these two proteins. The eluate was injected into a Mon…
Synthesis and Supramolecular Association of Immobilized NCN-Pincer Platinum(II) Complexes on Hyperbranched Polyglycerol Supports
2004
Pertosylation of hyperbranched polyglycerol (M(n)=2000; M(w)/M(n)=1.3) followed by partial displacement of the tosyl groups with carboxylic acid functionalized NCN-pincer platinum(II) complexes [PtI-2,6-(NMe(2)CH(2))(2)C(6)H(2)-4-COOH], resulted in covalent attachment of the NCN-pincer complexes to the polyglycerol. These functionalized hyperbranched macromolecules have been characterized by (1)H, (13)C, and (195)Pt NMR, UV-visible, and IR spectroscopy. The presence of Pt and I atoms renders them directly visible by transmission electron microscopy (TEM) without staining procedures, which offers images of associated hyperbranched macromolecules. TEM micrographs show disk-shaped structures w…