Search results for "Facteur"
showing 10 items of 73 documents
Detection of Escherichia coli strains producing cytotoxic necrotizing factor type two (CNF2) by enzyme-linked immunosorbent assay
1994
Sheep and rabbit antisera were produced against lysates of E. coli strain 711 (pVir). This K-12 strain carries the Vir plasmid which codes for Cytotoxic Necrotizing Factor type 2 (CNF2). Immunoglobulin G (IgG) fractions of both immune sera were subsequently purified by a two-step precipitation method. To increase the specificity for CNF2, the sheep IgG preparation was extensively adsorbed against both a sonicated extract of isogenic K-12 strain 711 and intact phenol-treated cells of vaccine strain 711 (pVir). An enzyme-linked immunosorbent assay (ELISA) was developed to detect clinical isolates of E. coli producing CNF2, using the final preparations of rabbit and sheep IgG in a double sandw…
Facteurs économiques et psycho-physiologiques de la typologie de la collection du Musée du Jouet de Moirans (France)
1989
International audience
Quand un dispositif d’accompagnement disparait : les effets sur les parcours des étudiants de santé
2023
This research is as part of current works about transition plans for students, specially medical students in France. It analyses how students make training choices as they can be given vocational guidance or not. Effects of transition programme are examined from a new point of view since we also consider results when this program doesn’t exist anymore. We can point out persistence and streams choices as main outcomes of the programme. In doing so, we highlight institutional factors in academic paths.
Political and sociodemographic challenges of child malnutrition in African Sahelian countries and Corn of Africa
2017
Continuous food and nutrition insecurity that affect lives of 155 millions of children in the world including about 59 million in African countries mostly in the Sahel and horn of Africa represent a critical public health and underdevelopment problem which creates a deep worldwide collective moral issue within the new global transformative agenda for the universal prosperity (no one is left behind) and child rights for survival, development and protection.Under five child malnutrition characterized by stunting, underweight or wasting increase the risk of child morbidity and mortality, handicap readiness of learning and professional skills and impact on economic development of the country re…
Le collectif au travail et la souffrance », Quelles actions pour un autre travail : Soulager la souffrance, éradiquer les facteurs de risques, « soig…
2013
International audience
Endogenous growth and regional growth (Approaches to a theory of spatial endogenous growth)
1994
L'objectif de cet article est de poser les différents principes préalables à la construction d'une théorie spatiale de la croissance endogène. Dans cebut, plusieurs étapes sont présentées.1/ L'analyse des théories macroéconomiques de la croissance endogène permet de mettre en évidence le rôle clé des externalités d'agglomérations.2/ Mettre en parallèle, les mécanismes de croissance endogène et de croissance régionale permet d'identifier les composantes spatiales de lacroissance. A cet égard, le concept de capital spatial est défini.3/ Enfin, les principes fondamentaux attachés à la dynamique de population, à l'accumulation du capital spatial et à l'émergence des économiesd'agglomération son…
Voici la carte de diversité microbienne
2009
Una revisión crítica del debate sobre las necesidades humanas desde el enfoque centrado en la persona
2012
El artículo presenta algunos de los diferentes modelos teórico-explicativos sobre las necesidades humanas; revisa el estado del arte en las publicaciones recientes, y evalúa críticamente las limitaciones y potenciales que ellas tienen, desde una mirada sistémica y fenoménica desde un enfoque centrado en la persona. L’article présente certains des différents modèles théorico-explicatifs sur les besoins humains; il expose un état des lieux de la bibliographie récente, et évalue de manière critique les limites et potentiels que celles-ci peuvent représenter, dans une perspective systémique et propre au phénomène centrée sur la personne. The article presents some of the different theoretical-ex…
Regulatory networks underlying mycorrhizal development delineated by genome-wide expression profiling and functional analysis of the transcription fa…
2017
Background: Ectomycorrhizal (ECM) fungi develop a mutualistic symbiotic interaction with the roots of their host plants. During this process, they undergo a series of developmental transitions from the running hyphae in the rhizosphere to the coenocytic hyphae forming finger-like structures within the root apoplastic space. These transitions, which involve profound, symbiosis-associated metabolic changes, also entail a substantial transcriptome reprogramming with coordinated waves of differentially expressed genes. To date, little is known about the key transcriptional regulators driving these changes, and the aim of the present study was to delineate and functionally characterize the trans…
Cytotoxic necrotizing factor type 2 produced by virulent Escherichia coli modifies the small GTP-binding proteins Rho involved in assembly of actin s…
1994
Cytotoxic necrotizing factor type 2 (CNF2) produced by Escherichia coli strains isolated from intestinal and extraintestinal infections is a dermonecrotic toxin of 110 kDa. We cloned the CNF2 gene from a large plasmid carried by an Escherichia coli strain isolated from a lamb with septicemia. Hydropathy analysis of the deduced amino acid sequence revealed a largely hydrophilic protein with two potential hydrophobic transmembrane domains. The N-terminal half of CNF2 showed striking homology (27% identity and 80% conserved residues) to the N-terminal portion of Pasteurella multocida toxin. Methylamine protection experiments and immunofluorescence studies suggested that CNF2 enters the cytosol…