Kosanić (Zoran), La désagrégation de la fédération yougoslave (1988-1992)

Issu d'une thèse d'histoire contemporaine soutenue en Sorbonne en 2007, l'ouvrage de Zoran Kosanić se présente comme une synthèse essentielle pour comprendre l'ensemble du processus qui a conduit à la disparition de la Yougoslavie au tournant des années 1990. L'auteur insiste en effet dans sa présentation sur le caractère multidimensionnel de son travail de recherche, qui permet de saisir toute la complexité et toutes les connexions existantes entre les différents aspects de la désintégration..

Le sport en Yougoslavie, anatomie d’un projet politique

Si la Yougoslavie, son existence comme sa disparition violente, a fait l’objet d’une très abondante littérature dans toutes les disciplines des sciences sociales, certains aspects de son histoire politique et culturelle étaient restés relativement inexplorés. C’est notamment le cas du sport sur lequel les chercheurs ont, d’une façon générale, tardé à se pencher comme objet légitime de recherche, que ce soit en histoire et, surtout, en science politique et en anthropologie. Puis, lorsque le sp..

Delpla (Isabelle), Bessone (Magali) dir., Peines de guerre. La justice pénale internationale et l'ex-Yougoslavie

L'ouvrage collectif Peines de guerre. La justice pénale et l'ex-Yougoslavie présente l'ambition, par son caractère pluridisciplinaire, de répondre à trois questions principales concernant le TPIY, à savoir tout ce qui concerne le fonctionnement du Tribunal en soi, puis le débat sur le place des témoins-experts, et enfin la réception locale du travail du TPIY. Le mode de fonctionnement du Tribunal est analysé à travers plusieurs éléments. D'abord, certains auteurs (Maupas, Schweiger, Nemitz, S..

Mesoscopic Correlation with Polarization of Electromagnetic Waves

Mesoscopic correlations are observed in the polarization of microwave radiation transmitted through a random waveguide. These measurements, supported by diagrammatic theory, permit the unambiguous identification of short, long, and infinite range components in the intensity correlation function, as well as an additional frequency-independent component.Comment: 4+ RevTex pages, 4 figure

Information transfer through disordered media by diffuse waves

We consider the information content h of a scalar multiple-scattered, diffuse wave field $\psi(\vec{r})$ and the information capacity C of a communication channel that employs diffuse waves to transfer the information through a disordered medium. Both h and C are shown to be directly related to the mesoscopic correlations between the values of $\psi(\vec{r})$ at different positions $\vec{r}$ in space, arising due to the coherent nature of the wave. For the particular case of a communication channel between two identical linear arrays of $n \gg 1$ equally-spaced transmitters/receivers (receiver spacing a), we show that the average capacity $\propto n$ and obtain explicit analytic expressions for $/n$ in the limit of $n \to \infty$ and $k \ell \to \infty$, where $k= 2\pi/ \lambda$, $\lambda$ is the wavelength, and $\ell$ is the mean free path. Modification of the above results in the case of finite but large n and $k \ell$ is discussed as well.Comment: REVTeX 4, 12 pages, 7 figure

Phenomenological Study of Strong Decays of Heavy Hadrons in Heavy Quark Effective Theory

The application of the tensor formalism of the heavy quark effective theory (HQET) at leading order to strong decays of heavy hadrons is presented. Comparisons between experimental and theoretical predictions of ratios of decay rates for B mesons, D mesons and kaons are given. The application of HQET to strange mesons presents some encouraging results. The spin-flavor symmetry is used to predict some decay rates that have not yet been measured.Comment: 10 page

Quasi Two-dimensional Transfer of Elastic Waves

A theory for multiple scattering of elastic waves is presented in a random medium bounded by two ideal free surfaces, whose horizontal size is infinite and whose transverse size is smaller than the mean free path of the waves. This geometry is relevant for seismic wave propagation in the Earth crust. We derive a time-dependent, quasi-2D radiative transfer equation, that describes the coupling of the eigenmodes of the layer (surface Rayleigh waves, SH waves, and Lamb waves). Expressions are found that relate the small-scale fluctuations to the life time of the modes and to their coupling rates. We discuss a diffusion approximation that simplifies the mathematics of this model significantly, and which should apply at large lapse times. Finally, coherent backscattering is studied within the quasi-2D radiative transfer equation for different source and detection configurations.Comment: REVTeX, 36 pages with 10 figures. Submitted to Phys. Rev.

Energy partition of seismic coda waves in layered media: theory and application to Pinyon Flats Observatory

We have studied the partition of shear, compressional and kinetic energies in the coda of ten earthquakes recorded on a dense array, located at Pinyon Flats Observatory (PFO), California. We observe a clear stabilization of the shear to compressional ($W^s/W^p$) energy ratio in the coda, with an average value of about 2.8. The ratio between the vertical and horizontal kinetic energies ($V^2/H^2$) can be measured from 5 to 25Hz and shows an abrupt transitionfrom 0.1 in the 5-10Hz band, to about 0.8 in the 15-25Hz band. These measured values are in sharp contrast with the theoretical prediction for equipartitioned elastic waves in a homogeneous half-space. To explain these observations, we have developed a theory of equipartition in a layered elastic half-space. Using a rigorous spectral decomposition of the elastic wave equation, we define equipartition as a white noise distributed over the complete set of eigenfunctions. The theory predicts that close to the resonance frequency of a low-velocity layer, the ratio between shear and compressional energies strongly decreases. Using a detailed model of the subsurface at PFO, this conterintuitive result is found to be in good qualitative and quantitative agreement with the observations

Football national teams and conflicting identities in the former Yugoslavia

International audienc