Documents found
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2641.More information
The growing presence of temporary migrant workers (TMW) in Canada and Quebec through the Temporary Foreign Worker Program (TFWP) means that the demands to meet their needs (socio-economic, socio-cultural, etc.) increase year after year. In this context, community organizations are increasingly solicited to help TMTs, in order to facilitate their access to services (medical, psychological and legal) or simply to clarify information. Unfortunately, these community organizations often have very few resources to respond to all the requests. This text presents an initiative to develop three tools (a map, a directory and a guide) to facilitate the work on the field. The first section presents the tools and the needs they address. The second section focuses on the challenges encountered during the design of these tools and the reception that the project and the tools have had to date. The text concludes with a general reflection.
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2642.More information
Keywords: Analyse de contenu, approche inductive, analyse de discours, ethos, Instagram
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2643.More information
The accumulation and (acute) toxicity of dissolved metals in many aquatic organisms are normally well predicted with the biotic ligand model (BLM), although some exceptions have been reported. In long-term chronic metal exposures, complex physiological interactions with essential and non-essential metals may modulate metal uptake rates and toxicity. The present literature review discusses recent advances in environmental chemistry, molecular biology, and physiology related to the regulatory mechanisms of membrane transport of essential metals in eukaryotic phytoplankton and to their impacts on the accumulation and toxicity of cadmium, a usually non-essential metal. This literature review finally evaluates the possibility of including elements of algal physiology in the current version of the BLM in order to enhance the potential of this model to predict metal uptake and toxicity in chronic exposures. The available results in the literature suggest that the inclusion of negative and positive feedback interactions of metals on the kinetic parameters (Vmax: maximal uptake rate; KM: metal affinity of the transport sites) of multiple metal transport systems shows promise for better predicting the long-term accumulation and toxicity of metals in phytoplankton. The development of a BLM able to predict the chronic toxicity of metals under various physicochemical conditions representative of those found in the environment will benefit from recent and future advances in toxicology, biology and environmental chemistry. The knowledge gained will aid in achieving the ambitious goal of developing an extended BLM that reliably predicts metal toxicity in complex natural aquatic environments.
Keywords: Modèle du ligand biotique, toxicité des métaux, phytoplancton, physiologie algale, transport membranaire des métaux, Biotic ligand model, metal toxicity, phytoplankton, algal physiology, metal transport systems
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2644.More information
ABSTRACTThis paper argues that unions in contemporary society are too varied and too fluid to be studied using the standard demographic approaches and tools for the study of marriage and the family. Emphasis on process, rather than on status and membership in a category, would give greater recognition to the fact that states such as marriage or cohabitation need to be seen as part of over-lapping life-course sequences. The meaning of a given union depends in pairt on what has preceded and what follows in the sequence. Attention to process also requires greater attention to the individual and joint decision making that underlies movement along well-defined demographic statuses. In defining and studying sexual unions, greater use needs to be made of modern quantitative classification techniques, including cluster analysis, multidimensional scaling, and the logic of fuzzy sets as well. Methods of qualitative analysis are particularly relevant for the study of process and meaning. The greatest progress will come from a conscious blending of quantitative and qualitative models.
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2646.More information
Political science research is mainly published in English but it is produced in a variety of languages. The fact of one language being dominant in communications raises the issue of the articulation between a local language and the dominant communication language in the practice of political science. In this paper, we explore the impact of the publication language of Francophone political scientists of France and Québec on their performance in research as measured by Publish or Perish on the basis of Google Scholar citations. We ask whether publishing in French decreases one's performance as it is measured by citation indices. We show that the language of publication seems to have a systematic impact on performance measures. When compared with Francophone scholars who publish mostly in English, those who do so mainly in French have less publications and are not cited as often by their peers. Other factors are related to performance: gender, experience, and the department to which a scholar is associated.
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2647.More information
Students have the opportunity to use different digital tools for collaboration purposes, particularly when they engage in research activities or investigations. But these tools can be part of distinct contexts, official or unofficial, depending on those used. Hence the interest in examining the interactive processes at work in both cases, just as the gradual transition from one to the other is likely to explain why the players distance themselves somewhat from the official bodies in order to work together. It is then hypothesized that such transition is capable of giving collective activity an heuristic dimension, notably a propensity for discovery. In this paper, it is put to the test in support of a theoretical field (Computer-Supported Collaborative Learning) and data (qualitative/quantitative) from recent studies, bearing in mind that another factor (the size of the groups formed by the students) seems to play a significant role in this matter.
Keywords: collaboration, collaboration, colaboración, colaboração, recherche collective, collective research, pesquisa coletiva, investigación colectiva, interação à distância, interacciones en línea, online interactions, Interactions à distance, technologies de l’Information et de la Communication (TIC), information and communication technologies (ICT), tecnologías de la información y la comunicación (TIC), tecnologias de informação e comunicação (TIC), students, estudantes, estudiantes, étudiants
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2648.
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2649.More information
The double relationship of art to social dynamic expresses its complex links to the political and economic powers. The influence of the Prince and the Market on arts and the critic of powers through the means of art have as main issues free speech and genuine experiences. In a context of redefinition of the social role of the artists, where the figure of a psychoanalyst is replacing the one of a revolutionary, and of the public space, less visible in the urban development and more enclosed in the media, the new artistic activism aims at conscience awaking more than at social structures changes. Its impacts are therefore compromised by the taste of the population for amusement and the control of powers over the media.
Keywords: Arte, art, Art, power, pouvoir, poder, marché, market, mercado, luttes sociales, luchas sociales, social struggles
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2650.More information
Some 1800 traditional wells and 100 deep boreholes (40 to 65 m depth) contribute to the drinking water supply of Ouagadougou. In order to better know the origin of the mineralization, the concentration trends and to characterize the structure and the functioning of the aquifers, a hydrochemical study has been carried out. The city is located in the Sudano-Sahelian climate zone with a rainy season from June to September and a dry season occurring between October and May. The average rainfall is about 700 mm. The geology of the study area comprises crystalline formations overlain by a layer of weathered materials about 30 m thick. Hydrogeologically, two main aquifers are encountered here: the near surface aquifer located in the laterites and exploited through hand-dug wells, and the deep aquifer consisting of coarse sands and fractured bedrock. The latter aquifer, most of the time confined, is tapped by the boreholes and is isolated from the first by clayey formations.Regarding the chemistry, water from the boreholes shows a bicarbonate calcic and magnesium facies, whereas the well waters are characterized by a chlorinated and nitrate facies with a sodium trend. The dominant process in the deeper aquifer is the hydrolysis of silicates. The near-surface aquifer is highly influenced by superficial supplies. In this case, the mineralization of the anthropogenic organic matter encourages the dissolution of the silicates. The electrical conductivity and the alkalinity, easily measurable in the field, support this suggestion. The nitrate contents exceed WHO norms in nearly 60% of the 1800 inventoried wells. Their statistical analysis in relation to the distances between the different sampling points highlights the heterogeneity of the environment and the localized state of the influence of the anthropogenic supplies, confirming the hydrodynamic concept of a discontinuous environment typical of bedrock zones. The seasonal variations of nitrate concentrations in the wells reflect soil leaching phenomena during the wet season.The stable isotope (18O/2H) content of the waters allowed a differentiation between the wells characterized by evaporation processes and the boreholes showing contents close to multi-year mean values of the monsoon rainfalls. These observations suggest two types of recharge: the first type takes place directly through the weathered mantle and the second type, delayed, occurs through lakes and creeks under evaporation conditions.
Keywords: Pollution urbaine, hydrochimie, aquifères, socle cristallin, Ouagadougou, Burkina Faso, Urban pollution, hydrochemistry, aquifers, crystalline basement, Ouagadougou, Burkina Faso