Search results for "DAIR"
showing 10 items of 622 documents
L'insertion professionnelle des jeunes de Niveau IV en Bourgogne en 1977
1981
Référence interne : 81013
Bacheliers professionnels au travail : l'exemple des industries de bien d'équipement
1995
International audience
Quand le sport (dés)oriente les parcours des jeunes
2020
Référence interne : 20013; Axé sur la transition lycée-enseignement supérieur, ce rapport souligne la diversité des parcours vécus par des bacheliers et notamment des bacheliers professionnels dans le secondaire, en montrant leurs rapports pluriels aux études. Il étudie tout particulièrement comment des expériences et investissements sportifs peuvent impacter les orientations des jeunes, voire leur donner un tour inattendu, à l'image des bacheliers professionnels en STAPS ou des jeunes filles en filière masculine. L’expérience en lycée professionnel peut être perçue par certains comme une possibilité d'apprendre un métier ou d’obtenir le baccalauréat, d'autres la vivent comme une fermeture …
Baccalauréat
2010
Au delà de l'objectif 80 pour cent d'une classe au baccalauréat l'article vise à préciser les hiérarchies existantes au sein des filières du lycée et à clarifier les confusions existantes entre démocratisation et scolarisation de masse. Les catégories sociales les plus favorisées intégrant les filières les plus prestigieuses et les plus distinctives.
Éléments factuels pour une réflexion sur le baccalauréat et son organisation
1996
Bac 2021 : les enjeux de la réforme
2020
International audience
La natation au bac : un choix ?
1984
International audience
The Agr communication system provides a benefit to the populations of Listeria monocytogenes in soil
2014
International audience; In this study, we investigated whether the Agr communication system of the pathogenic bacterium Listeria monocytogenes was involved in adaptation and competitiveness in soil. Alteration of the ability to communicate, either by deletion of the gene coding the response regulator AgrA (response-negative mutant) or the signal pro-peptide AgrD (signal-negative mutant), did not affect population dynamics in soil that had been sterilized but survival was altered in biotic soil suggesting that the Agr system of L. monocytogenes was involved to face the complex soil biotic environment. This was confirmed by a set of co-incubation experiments. The fitness of the response-negat…
Biogenic amines in fermented foods
2010
Food-fermenting lactic acid bacteria (LAB) are generally considered to be non-toxic and non-pathogenic. Some species of LAB, however, can produce biogenic amines (BAs). BAs are organic, basic, nitrogenous compounds, mainly formed through decarboxylation of amino acids. BAs are present in a wide range of foods, including dairy products, and can occasionally accumulate in high concentrations. The consumption of food containing large amounts of these amines can have toxicological consequences. Although there is no specific legislation regarding BA content in many fermented products, it is generally assumed that they should not be allowed to accumulate. The ability of microorganisms to decarbox…
The effects of ultrasonication, fermentation with Lactobacillus sp., and dehydration on the chemical composition and microbial contamination of bovin…
2018
The aim of this study was to evaluate the influence of ultrasonication, fermentation with Lactobacillus plantarum LUHS135 and Lactobacillus paracasei LUHS244, and different methods of dehydration on the chemical composition of bovine colostrum (BC), including the fatty acid and free amino acid profile and the content of micro- and macroelements. In addition, we analyzed the changes in lactic acid bacteria count, microbial contamination (aerobic mesophilic spore-forming bacteria, enterobacteria including Escherichia coli, and fungi/yeasts), the abundance of biogenic amines, and the concentration of nucleotide monophosphates. Significant effects of different treatments on the free amino acid …