Search results for "Representations"
showing 10 items of 143 documents
A note on the Lawrence-Krammer-Bigelow representation
2002
A very popular problem on braid groups has recently been solved by Bigelow and Krammer, namely, they have found a faithful linear representation for the braid group B_n. In their papers, Bigelow and Krammer suggested that their representation is the monodromy representation of a certain fibration. Our goal in this paper is to understand this monodromy representation using standard tools from the theory of hyperplane arrangements. In particular, we prove that the representation of Bigelow and Krammer is a sub-representation of the monodromy representation which we consider, but that it cannot be the whole representation.
Savoirs, représentations et comportements des réunionnais en matière de santé et d'environnement 18 mois après l'épidémie de chikungunya
2009
The outbreak of Chikungunya in Reunion in 2005/2006 surprised by its intensity and by the appearance of serious forms. It has left health professionals and relatively poor populations facing the lack of appropriate treatment. From the example of Chikungunya, the general objective of our multidisciplinary research was to study how two types of factors interact in the management of a vector-based disease: those related to representations and knowledge of the disease, and those related to to the perception of the environment. In this poster, we present the results of a questionnaire survey conducted in November 2007 among the inhabitants of a district of Ravine des Cabris (Commune of St Pierre…
Nouveaux aliments à base de légumineuses : les consommateurs sont-ils prêts ?
2018
National audience
The hidden face of expertise! Representations and descriptions of wines by different groups of experts in a vineyard in full evolution : the Beaujola…
2022
The Beaujolais vineyard is today in full evolution thanks to a policy of upgrading and moving upmarket. This evolution leads to the development of new mentions within the vineyard. This evolution impacts the Beaujolais wines but also the wine experts who are in the heart of making, selling and promoting these wines. Wine expertise has been studied extensively over the past twenty years. Most studies have focused on experts as a unified group versus novices to understand the effect of expertise on the knowledge and abilities of experts. However, it appears that within this unity, there are several types of experts with different backgrounds, knowledge, experiences, and professions: wine make…
La catégorisation d'un exogroupe à travers une tâche d'association de mots
2001
International audience
Catégorisation et représentations sociales
2007
Ce cours présente les relations existant entre les concept de représentation sociale et de catégorisation sociale
Measuring Distraction at the Levels of Tactical and Strategic Control: The Limits of Capacity-Based Measures for Revealing Unsafe Visual Sampling Mod…
2011
The control theory of driving suggests that driver distraction can be analyzed as a breakdown of control at three levels. Common approach for analyzing distraction experimentally is to utilize capacity-based measures to assess distraction at the level of operational control. Three driving simulation experiments with 61 participants were organized to evaluate which kind of measures could be used to analyze drivers' tactical visual sampling models and the related effects of distraction while searching textual information on in-car display. The effects of two different text types were evaluated. The utilized capacity-based measures seemed to be insufficient for revealing participants' tactical…
From alternative representations to prospective visions. The administrative subdivisions in Palermo (Italy)
2016
Alternative representations of the city are not only a useful analysis tool, but they also provide elements of a conceived new version of lived space that can contribute to ameliorate the spatial justice of the city. This is even truer for intra-local spaces that are the reference scale for many public participation policies, grass-root projects and activists. In this paper, we present the case of Palermo where the administrative subdivisions of the urban space have been imposed – because of legislation about administrative decentralisation – on the historical and perceived ones. Alternative mapping shows intra-local spaces as places of identity definition and civic engagement. In our paper…
Didáctica de las ciencias experimentales y sociales
2005
RESUMEN: Este artículo presenta un estudio sobre la influencia del uso didáctico y científico de las representaciones gráficas cartesianas en la ejecución que hacen los estudiantes de las tareas propias de tres niveles de comprensión gráfica. Los resultados muestran que el uso didáctico instrumental influye negativamente en la ejecución de las tareas de los niveles de comprensión explícita y conceptual de los estudiantes con formación en ciencias y en el nivel de comprensión implícita de los estudiantes sin esta formación. También, muestran que el uso científico experimental influye positivamente en el nivel de comprensión implícita de los estudiantes con formación científica. ABSTARCT: Thi…
Representações sociais, sens pratique, poder simbólico e o processo de construção do ser docente
2019
A partir de las elaboraciones teóricas de los fundadores del campo de investigación de las representaciones sociales, se pretende avanzar en la construcción de un diálogo entre esta teoría y la praxis social de Pierre Bourdieu, centrándose en la relación entre las representaciones sociales, la praxis sensorial (como manifestación del hábito) y el poder simbólico, dimensión ausente en el modelo moscoviciano. La base empírica a partir de la cual se desarrollan las reflexiones presentes en este artículo se apoya en investigaciones realizadas sobre el proceso de construcción del ser docente, en la realidad de algunas ciudades del nordeste brasileño. En este sentido, se destaca lo que se cree qu…