Search results for " DIP"
showing 10 items of 1273 documents
Preparation and characterization of dummy-template molecularly imprinted polymers as potential sorbents for the recognition of selected polybrominate…
2018
The main aim of this work was to conduct the preliminary/basic research concerning the preparation process of a new dummy molecularly imprinted polymer (DMIP) materials. Developed DMIPs were proposed as a sorption material in solid-phase extraction (SPE) technique for recognition of selected low mass polybrominated diphenyl ethers (PBDEs) – PBDE-47 and PBDE-99. Four new DMIPs were synthesized employing bulky polymerization technique by application of structural analogue of low mass PBDEs - 4,4′-Dihydroxydiphenyl ether, as a dummy template. The DMIPs and corresponding non-imprinted polymers were prepared using different functional monomers: methacrylic acid; methyl methacrylate and different…
Effets d'établissement sur l'insertion professionnelle des diplômés du supérieur : une comparaison de six pays européens et le Japon
2003
Communications du colloque "L'enseignement supérieur en questions" qui s'est tenu les 16 et 17 mai 2002 à Bordeaux, organisé par le Réseau d'Étude sur l'Enseignement Supérieur (RESUP); International audience
Fauna Europaea: Diptera – Brachycera
2015
Fauna Europaea provides a public web-service with an index of scientific names (including important synonyms) of all extant multicellular European terrestrial and freshwater animals and their geographical distribution at the level of countries and major islands (east of the Urals and excluding the Caucasus region). The Fauna Europaea project comprises about 230,000 taxonomic names, including 130,000 accepted species and 14,000 accepted subspecies, which is much more than the originally projected number of 100,000 species. Fauna Europaea represents a huge effort by more than 400 contributing taxonomic specialists throughout Europe and is a unique (standard) reference suitable for many user c…
Éléments d'analyse économique des faux diplômes
2007
Despite the fact that fake degrees have been used since the creation of legitimate diplomas, the fake degrees business is reaching epidemic proportions, notably because of globalization, new information and communication technologies and “diploma race”. We define the concept of fake degrees and distinguish different kinds of fakes. We also indicate the main functions of diplomas in the economic literature. We identify the supply and demand sides of the market of fake degrees and also consider other affected parties. We show that this growing business generates several negative spillovers that harm, among others, non traditional education institutions such as distance learning institutions a…
Les parcours de double réussite (sportive et scolaire) de normaliennes : entre "déclassement" et retour sur probabilité
2014
En ligne sur http://www.cereq.fr/index.php/content/download/11326/93292/file/Relief48.pdf; National audience; Dans cette contribution, nous nous intéressons aux parcours des normaliennes du département Sciences du Sport et Éducation Physique (du lycée jusqu'à l'entrée dans la vie active. Par leur double parcours d'excellence (sportive et scolaire), les normaliennes illustrent un projet doublement assigné au masculin : un projet d'excellence scolaire voire professionnel d'une part et dans un domaine (le sport / les STAPS) structurellement masculin, d'autre part. A partir d'une enquête par questionnaires réalisée auprès des normalien-ne-s ayant intégré le département EPS (puis 2SEP) de l'Écol…
L'accès aux emplois en entreprise des docteurs scientifiques : les impacts des collaborations industrielles
2000
This thesis studies the entrance to firms of the science Ph.D graduates, notably as industrial researcher. Particularly, the impacts of collaborations between the academic sphere and the industry are examined. In this perspective, the first part is dedicated to the elaboration of a frame of analysis. This one establish links between the process of production of the knowledge, the training and the access to the labour market. The analysis of the preparation of the doctorate allows to define both the attributes common to all science Ph.D graduates, and the specific characteristics engendered by the existence of industrial collaborations. The study of the determinants of the access to employme…
Stability of electrically conducting liquid flow driven by a rotating magnetic dipole in a ring channel
2020
The stability of electrically conducting liquid flow in a cylindrical ring channel is studied numerically. The flow is driven by a rotating magnetic dipole placed at the ring’s center. Depending on ring’s width, two distinct flow regimes are observed. In a narrow ring, the flow itself and its instability resemble the related rotating magnetic field driven flow in a cylinder. This changes in a wide ring when an intense radial jet develops on the midplane. Within this jet, the driving magnetic force is overwhelmed by inertial and viscous forces similar to how it occurs in the boundary layer flow. The instability develops as an azimuthally periodic wave-like deformation of this jet. Non-unifor…
Rotating magnetic dipole-driven flows in a conducting liquid cylinder
2021
Four configurations of a rotating magnetic dipole-driven turbulent flow in an electrically conducting liquid cylinder are considered by spectral direct numerical simulation. These configurations differ by parallel or perpendicular orientation of the dipole rotation vector with respect to the nearest surface of the cylinder or its axis. The rotating dipole generates electromagnetic force in a thin outer liquid layer facing it. A concentrated vortex is driven when the dipole rotation vector is perpendicular to the nearest surface. This vortex closely resembles the rotating disk-driven flow. When the dipole rotation vector is parallel to the nearest surface, then a distributed vortex occurs ak…
Flow cytometric kinetic assay of calcium mobilization in whole blood platelets using Fluo-3 and CD41
1999
Background: Platelet activation plays a major role in the physiology and pathology of hemostasis. Flow cytometry is a promising approach for the structural and functional analysis of platelets. However, the choice of adequate biological parameters and most technical issues are still under discussion. A rise in cytosolic free Ca 21 is a key early event that follows platelet stimulation and precedes several activation responses, including shape change, aggregation, secretion, and expression of procoagulant activity. Our objective was to set up a fast and sensitive flow cytometric method to determine the kinetics of intracellular Ca 21 mobilization in platelets, which could be performed with t…
Probabilistic risk assessment of the exposure to polybrominated diphenyl ethers via fish and seafood consumption in the Region of Valencia (Spain)
2013
The study was carried out to estimate the dietary intake of polybrominated diphenyl ethers (PBDEs) in the Region of Valencia (Spain) in order to evaluate the resultant risk. The PBDE levels in fish and seafood (a total of 206 samples) were determined. Dietary intake was estimated using results of PBDE analyses in fish and seafood marketed in the Region of Valencia over the period 2007-2012 and data of the first Valencian Food Consumption Survey, conducted in 2010. Two scenarios were assumed for left-censored results: the lower-bound (LB) scenario, in which unquantified results (below the limit of quantification (LOQ)) were set to zero and the upper-bound (UB) scenario, in which unquantified…