Gamma Radiation by Neutralino Stars

A new model of gamma radiation (GR) generated by neutralino annihilation in neutralino stars (NeS) is proposed. Diffuse Galactic and extragalactic GR is calculated for this model and is shown to be in a reasonable agreement with observations. The point source component (P) is picked out among nonidentified discrete gamma sources from EGRET catalog. This component is shown to be distributed isotropically and homogeneously, as it should be for NeS. Gamma radiation from significant part of P-sources is supposed to be the direct radiation from individual NeS. This supposition is shown to be in agreement with observations. The comparison of the theory with observed GR gives a possibility to establish some important features of CDM particle.Comment: 12 pages, LaTe

Cold Dark Matter detection in SUSY models at large tan(beta)

We study the direct detection rate for SUSY cold dark matter (CDM) predicted by the minimal supersymmetric standard model with universal boundary conditions and large values for tan(beta). The relic abundance of the lightest supersymmetric particle (LSP), assumed to be approximately a bino, is obtained by including its coannihilations with the next-to-lightest supersymmetric particle (NLSP), which is the lightest s-tau. The cosmological constraint on this quantity severely limits the allowed SUSY parameter space, especially in the case the CP-even Higgs has mass of around 114 GeV. We find that for large tan(beta) it is possible to find a subsection of the allowed parameter space, which yields detectable rates in the currently planned experiments.Comment: Changes in text and figure

Henry Botino

Biographie et bibliographie de l\u27auteur, ainsi qu\u27un débat sur le thème de la poésie. Lecture de poèmes: "La complainte du misérable", " le choix", "le palestinien", "à Kanaki", "O Guadeloupe", "Noël sans noël (sur la misère des enfants), "Freedom" (sur l\u27Afrique du Sud). "Humour, amour, poésie"

Quantitatively comparing virtual and real draping of clothes

Several cloth modeling techniques have been proposed. Their main purpose is the realistic simulation of the garments of virtual actors for entertainment and advertising. In these areas, the main concern is to construct fast algorithms, able to produce impressive and qualitatively satisfactory draping of clothes. Other applications, as designing, manufacturing and selling real garments, call for a virtual draping which not only satisfies the human eye, but also closely mimics the real physical draping of clothes. From this viewpoint we will discuss some modeling techniques, and present some result concerning the quantitative comparison between the draping of real clothes and their virtual counterpart

Interactive reconstruction of 3-D objects from silhouettes

Many techniques for reconstructing 3-D shapes from 2-D images use silhouette data. A problem with this approach is that, if no a priori information about the 3-D shape is available, we do not know neither the accuracy of the reconstruction, nor where it is better to locate new viewpoints for improving the accuracy. We present and demonstrate a new general approach to interactive, object-specific shape-from-silhouette algorithms. The approach holds for completely unknown shapes. It is based on a necessary condition for the reconstruction to have been performed with the best possible accuracy. From this condition, we derive: 1) a quantitative measure of reconstruction accuracy; 2) rules for finding new viewpoints, if the accuracy is not satisfactory. The algorithm has been implemented for polyhedra, and demonstrated in a virtual environment

La terapia chirurgica del morbo di Basedow. Tiroidectomia totale o subtotale a confronto

The surgical treatment of Basedow's disease is the most rapid and effective therapeutic approach to obtain the long-term remission of disease. Controversy persists regarding the choice of total or subtotal thyroidectomy. The authors report their experience in 38 cases of Basedow's disease undergoing surgery, of which 20 were treated with total thyroidectomy and 18 with subtotal thyroidectomy. No hemorrhages, wound infections, recurrent lesions, or definitive hypoparathyroidism were observed in the two groups of patients. Those patients undergoing subtotal thyroidectomy reported a 44.5% incidence of hypothyroidism. In particular, hypothyroidism was clinically manifest in 16.7% of cases and subclinical in 27.8%, namely only revealed by the assay of thyroid hormones. Relapse of hyperthyroidism was also reported in 16.7% of the cases treated by subtotal thyroidectomy. On the basis of these results and owing to the high incidence of hypothyroidism and the relatively high percentage of recurrent hyperthyroidism after subtotal thyroidectomy, the authors conclude that total thyroidectomy may be considered the surgical treatment of choice in Basedow's disease in that there were no major complications following this type of surgery compared to subtotal thyroidectomy. Moreover, total thyroidectomy eliminates the risk of recurrent hyperthyroidism and therefore the need to re-operate, and also ensures the removal of possible foci of occult carcinoma reported in 5-10% of cases