106 resultados para 2007
Resumo:
A recent paper [L.-N. Hau and W.-Z. Fu, Phys. Plasmas 14, 110702 (2007)] deals with certain mathematical and physical properties of the kappa distribution. We comment on the authors' use of a form of distribution function that is different from the "standard" form of the kappa distribution, and hence their results, inter alia for an expansion of the distribution function and for the associated number density in an electrostatic potential, do not fully reflect the dependence on kappa that would be associated with the conventional kappa distribution. We note that their definition of the kappa distribution function is also different from a modified distribution based on the notion of nonextensive entropy.
Resumo:
The article presented to Malraux specialists the conclusions and findings of the international conference on André Malraux held at Queen's University Belfast in 2007.
Resumo:
In the summer of 2007, the geopolitics of Russo-North Caucasian relations were once again manifest in inter-ethnic violence. During the course of six weeks of rioting between ethnic Russian (russkii) and non-ethnic Russian (rossiiskii) citizens, three students were killed (one Chechen and two Russians) and pogroms were conducted widely. This article addresses these events through a focus on the nature and politics of the riots and those involved. I argue that a range of tensions came together to form a localised geopolitics, and that this contributes to an understanding of why these events took place. Ultimately, the riots are important as an event which reveals much about the complexity of power, space, and identity in contemporary Russia.
Resumo:
To quantify how much of the coronary heart disease (CHD) mortality decline in Northern Ireland between 1987 and 2007 could be attributed to medical and surgical treatments and how much to changes in population cardiovascular risk factors.
