997 resultados para Processus de production du handicap
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While collective identity markers are constantly evolving in today's city, the hyper-consumption society has allowed retail, even though greatly transformed, to remain a community hub for socialization. Society's commodification takes shape precisely within the public realm and the urban scene: sprawling analogous drivable retail-only suburbs and turning city centers into bland, soulless and undefined places displaying homogeneous frontages characterized by the same retail storefronts worldwide. More than ever, urban policies on retail oriented servicescapes seem crucial to urban and regional planning from a sustainable perspective. Thorough the study case of Lausanne, our research focuses on how the urban planning model and its policies could set into place spatial strategies to enhance urban quality and to reorganize retail centralities without succumbing to the prevailing commodification of the public realm. -- Les indicateurs d'identité collective se reformulent dans la ville actuelle, mais la société de l'hyperconsommation a permis au commerce, aussi transformé soit-il, de rester un lieu d'échange et de brassage social. La marchandisation de la société prend des formes précises dans l'espace et a un impact certain sur le paysage urbain : multipliant les espaces marchands périphériques monofonctionnels ou encore transformant nos centres-villes en paysages anodins, présentant des vitrines semblables quel que soit le pays où elles se situent. Plus que jamais, une régulation des espaces de consommation semble incontournable pour l'aménagement du territoire et l'urbanisme dans une perspective de durabilité. À travers le cas lausannois, cette thèse s'interroge sur la façon dont les modèles urbanistiques de régulation des jeux d'acteurs privés peuvent participer à la mise en place de stratégies de qualification urbaine et d'organisation des centralités commerciales sans céder à la tentation de la marchandisation des espaces publics.
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The signalling function of melanin-based colouration is debated. Sexual selection theory states that ornaments should be costly to produce, maintain, wear or display to signal quality honestly to potential mates or competitors. An increasing number of studies supports the hypothesis that the degree of melanism covaries with aspects of body condition (e.g. body mass or immunity), which has contributed to change the initial perception that melanin-based colour ornaments entail no costs. Indeed, the expression of many (but not all) melanin-based colour traits is weakly sensitive to the environment but strongly heritable suggesting that these colour traits are relatively cheap to produce and maintain, thus raising the question of how such colour traits could signal quality honestly. Here I review the production, maintenance and wearing/displaying costs that can generate a correlation between melanin-based colouration and body condition, and consider other evolutionary mechanisms that can also lead to covariation between colour and body condition. Because genes controlling melanic traits can affect numerous phenotypic traits, pleiotropy could also explain a linkage between body condition and colouration. Pleiotropy may result in differently coloured individuals signalling different aspects of quality that are maintained by frequency-dependent selection or local adaptation. Colouration may therefore not signal absolute quality to potential mates or competitors (e.g. dark males may not achieve a higher fitness than pale males); otherwise genetic variation would be rapidly depleted by directional selection. As a consequence, selection on heritable melanin-based colouration may not always be directional, but mate choice may be conditional to environmental conditions (i.e. context-dependent sexual selection). Despite the interest of evolutionary biologists in the adaptive value of melanin-based colouration, its actual role in sexual selection is still poorly understood.
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1929/01/01.
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1927.
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1925/01/01.
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1928/07/01.
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1933.
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1931/01/01.
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1932.
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Une seule main. La copie a été certifiée par deux notaires, "Dionisius Comitis" et "Franciscus Ferrebouc" qui ont signé au bas de chaque feuillet (180). Ce ms. fait partie d'une série d'expéditions pour lesquelles il existe des mentions de paiement datées de 1458. D'après P. Champion, il s'agit d'une copie authentique abrégée du procès de réhabilitation de Jeanne d'Arc. Deux autres copies sont connues: le ms. lat. 5970 de la BnF, certifié par les mêmes notaires, mais copié par des mains différentes, et le ms. Stowe 84, conservé à la British Library."
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Traduit de l'anglais par Jimmy Légaré et Olivier Paradis (Direction des bibliothèques de l'UdeM).
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We study fairness in economies with one private good and one partially excludable nonrival good. A social ordering function determines for each profile of preferences an ordering of all conceivable allocations. We propose the following Free Lunch Aversion condition: if the private good contributions of two agents consuming the same quantity of the nonrival good have opposite signs, reducing that gap improves social welfare. This condition, combined with the more standard requirements of Unanimous Indifference and Responsiveness, delivers a form of welfare egalitarianism in which an agent's welfare at an allocation is measured by the quantity of the nonrival good that, consumed at no cost, would leave her indifferent to the bundle she is assigned.
