Search results for "Caractéristiques"

Contributo para o estudo psicométrico da versão portuguesa do Cuestionario de Satisfacción Laboral S20/23

2010

Job satisfaction is understood through its dual role on organization productivity and employees achievement (Smith, 1998). The use of instruments to measure it in Portugal, has been the subject of several studies, such as the adaptation of the Cuestionario de Satisfacción Laboral S20/23 (Meliá & Peiró, 1989) to Portuguese population carried out by Pocinho and García (2008). This study is a further contribution to the study of the psychometric qualities of this instrument. The results on a sample of 136 Portuguese employees show that the questionnaire presents the adequate requirements of internal consistency (.95), test-retest reliability, and convergent validity (correlation of .84 with th…

The socio-ecological and personal determinants of school performance and motivation of high school students

2022

For decades, and with the work of Moos (1979) and Walberg (1969), educational research has consistently demonstrated the importance of the personal characteristics of students and the socio-ecological characteristics of the classroom in determining the affective and cognitive development of students.Unfortunately, no research on this subject has been done in France with high school students. This is why we set ourselves the objective of studying the environmental and personal determinants of high school students' academic performance and motivation. Using the L.E.I (Walberg, 1969) and EMMAS (Ntamakiliro et al., 2000) measurement scales, as well as data collection from 405 students enrolled …

Étude des caractéristiques cliniques et biologiques des patients marocains COVID-19 avec et sans dysfonctionnement olfactif et/ou gustatif

2021

Introduction et but de l’etude L’epidemie de coronavirus-2 du syndrome respiratoire aigu severe (SRAS-CoV-2), a l’origine de la maladie a coronavirus 2019 (COVID-19), presente une menace importante et urgente pour la sante mondiale. Cette infection virale alarmante, declaree pandemique par l’OMS en fevrier 2020, a entraine des millions de patients infectes et des milliers de morts dans le monde. Au Maroc, malgre les efforts fournis par les autorites, le SRAS-CoV-2 continue de se propager et constitue un fardeau de morbidite et de mortalite. L’objectif de cette etude est de decrire les caracteristiques cliniques des patients marocains COVID-19 et d’etablir la relation entre des symptomes cli…

Effet de la diversité botanique des pâturages de montagne sur le profil en acides gras et les caractéristiques sensorielles des laits.

2007

Image-based detection and classification of allergenic pollen

2015

The correct classification of airborne pollen is relevant for medical treatment of allergies, and the regular manual process is costly and time consuming. An automatic processing would increase considerably the potential of pollen counting. Modern computer vision techniques enable the detection of discriminant pollen characteristics. In this thesis, a set of relevant image-based features for the recognition of top allergenic pollen taxa is proposed and analyzed. The foundation of our proposal is the evaluation of groups of features that can properly describe pollen in terms of shape, texture, size and apertures. The features are extracted on typical brightfield microscope images that enable…

Le dialogue avec les parties prenantes dans l’exercice de la RSE : caractéristiques clés pour une prise de parole collective et effective

2021

National audience; Des appels à un changement radicale des modes de production accentuent la responsabilité sociale des entreprises. Cette notion de responsabilité longtemps affiliée à la satisfaction des seuls actionnaires est aujourd’hui tournée vers d’autres acteurs tout aussi exigeants, au-delà des frontières de l’entreprise. La responsabilité sociale de l’entreprise se traduit par une pression omniprésente qui contraint les entreprises à s’adapter. Cette adaptation passe par l’intégration des préoccupations liées à l’environnement, aux questions sociales et sociétales dans la conduite de leurs activités (Gond et ali., 2011 : 121). Elle passe aussi par la prise en compte de l’ensemble d…

Study of low-pressure suspension plasma spray nanostructured coating : structural characteristics and application in solid oxide fuel cell

2021

Suspension plasma spraying (SPS) has attracted more and more attention in terms of the preparation of nanostructured / sub-microstructured ceramic coatings. However, conventional SPS techniques are conducted under atmospheric pressure, which inevitably causes some disadvantages. Recently, a novel suspension spraying technology – low-pressure suspension plasma spraying (LPSPS) – was proposed, in which the sus-pension spraying process is conducted under low environmental pressure. Benefit from the significant impact of low pressure on the coating deposition, LPSPS is expected to improve the disadvantage of SPS as well as to obtain distinct coating structures not achievable in conventional SPS…

Real-time implementation of counting people in a crowd on the embedded reconfigurable architecture on the unmanned aerial vehicle

2020

The crowd counting task is an important research problem. Now more and more people are concerned about safety issues. Considering the scenario of a crowded scene: a population density system analyzes the crowds and triggers a warning to divert the crowds when their population density exceeds a normal range. With such a system, the incident of the Shanghai New Year's stampede will not happen again. The most difficult problem of population counting at present: On the one hand, in the densely populated area, how to make the model distinguish human head features more finely, such as head overlap. The second aspect is to find a small-scale local head feature in an image with a wide range of popu…

Influence de l'ENSO sur les précipitations de la région à pluies d'hiver d’Afrique du sud.

2012

5 pages; International audience; L'impact de l'ENSO sur la région à pluies d'hiver d'Afrique du Sud a été peu étudié, alors qu’il s’agit d’une zone densément peuplée, grosse exportatrice de produits agricoles, et par ailleurs remarquable par sa biodiversité. La relation ENSO - précipitations d'hiver est analysée à partir de 682 pluviomètres sur la période 1950-1999. Le cumul saisonnier mai-juillet (MJJ) est corrélé positivement et significativement à l'ENSO depuis la rupture climatique de 1976/1977. Les forts cumuls de MJJ durant les événements ENSO résultent de séquences humides plus longues dans la région du Cap et plus fréquentes dans la région au nord de 33°S. Les séquences humides enre…

Effect of production system on sensorial characteristics of PDO Cantal cheese

2004

National audience