9,208 research outputs found

    Lorentz invariance for mixed neutrinos

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    We show that a proper field theoretical treatment of mixed (Dirac) neutrinos leads to non-trivial dispersion relations for the flavor states. We analyze such a situation in the framework of the non-linear relativity schemes recently proposed by Magueijo and Smolin. We finally examine the experimental implications of our theoretical proposals by considering the spectrum and the end-point of beta decay in tritium.Comment: 8 pages, 4 figures. Presented at 2nd International Workshop DICE2004: From Decoherence and Emergent Classicality to Emergent Quantum Mechanics, Castello di Piombino, Tuscany, Italy, 1-4 Sep 200

    Between “ghettos”, “safe spaces” and “gaytrification”: exploring the specificities of LGBT neighbourhoods in southern Europe

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    In recent decades, “LGBT neighbourhoods” or “gay Villages” have been gaining some prominence and particular characteristics within cities, representing safe spaces for the expression and negotiation of individual and collective identities as well as for the political affirmation of LGBT communities and queer identities. As other areas that have been the main drivers of urban revitalization of inner-cities, such as cultural and creative quarters or multicultural spaces, these territories distinguish for the social practices of their users and inhabitants, the specificities of their economic activity, or their contribute to creativity or social integration. More than community ghettos, these areas have been characterized by their openness and vibrancy, enhancing the coexistence of diverse lifestyles, trajectories and identities, but also by the contribution of LGBT people to the gentrification of these districts through their strong commercial, residential and symbolic presence. Drawing upon an empirical work developed in Lisbon (Príncipe Real district) and Madrid (Chueca district), based on in-depth interviews to LGBT residents and participant observation in the two neighbourhoods, this paper characterizes the main evolutionary trajectories and specificities of these two districts. An analysis is made confronting the characteristics and contingencies of these areas with other cases previously studied in literature, identifying the existence of notable differences and suggesting evidence of significant specificities, which can represent a “South European” approach to the reality of “Gay Villages”. Some generic principles for urban planning are drawn out from the analysis.info:eu-repo/semantics/publishedVersio

    Éditorial : des signes de renouveau en criminologie ?

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    La réforme pénale et la réciprocité des droits

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    This letter deals with two major questions. The first shows how the “program” of criminology which emerged in the 19th century contributes to a neutralisation of the impact of discussions concerning human rights in the case of punishment. To do this, the author compares two paradigms of penal reform. The second question tries to clarify the relations established in Quebec between the rights of prisoners and abolitionist alternatives from 1975 on

    La réforme pénale au Canada : l’apport de la Commission canadienne sur la détermination de la peine

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    This study is a critical analysis of the penal reform project put forward by the Canadian Commission on Sentencing from the point of view of moderation. The author first considers the Commission's position in the penological debate between the Medical Model and the Justice Model. He then analyses the “new theory on sanctions” proposed by the Commission, as well as its position on “community measures” and on the ideal of rehabilitation. Finally, his analysis focuses on a number of the Commission's major recommendations for reform, its policy in terms of maximum and minimum sentences, the new “exceptional sentence” (intended to replace the present measures regarding “dangerous criminals”), its position on imprisonment of “twenty-five years' minimum” and its general guidelines for Canada. In conclusion, the author make an evaluation of the orientation of the Commission's reform with respect to the principle of moderation

    Migration flows: Dynamics and ways of management

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