Neutrino Geophysics at Baksan I: Possible Detection of Georeactor Antineutrinos

J.M. Herndon in 90-s proposed a natural nuclear fission georeactor at the center of the Earth with a power output of 3-10 TW as an energy source to sustain the Earth magnetic field. R.S. Raghavan in 2002 y. pointed out that under certain condition antineutrinos generated in georeactor can be detected using massive scintillation detectors. We consider the underground Baksan Neutrino Observatory (4800 m.w.e.) as a possible site for developments in Geoneutrino physics. Here the intrinsic background level of less than one event/year in a liquid scintillation ~1000 target ton detector can be achieved and the main source of background is the antineutrino flux from power reactors. We find that this flux is ~10 times lower than at KamLAND detector site and two times lower than at Gran Sasso laboratory and thus at Baksan the georeactor hypothesis can be conclusively tested. We also discuss possible search for composition of georector burning nuclear fuel by analysis of the antineutrino energy spectrum.Comment: 7 pages in LaTeX, 3 PS figures, Submitted to Physics of Atomic Nucle

Natural Nuclear Reactor Oklo and Variation of Fundamental Constants Part 1: Computation of Neutronics of Fresh Core

Using modern methods of reactor physics we have performed full-scale calculations of the natural reactor Oklo. For reliability we have used recent version of two Monte Carlo codes: Russian code MCU REA and world wide known code MCNP (USA). Both codes produce similar results. We have constructed a computer model of the reactor Oklo zone RZ2 which takes into account all details of design and composition. The calculations were performed for three fresh cores with different uranium contents. Multiplication factors, reactivities and neutron fluxes were calculated. We have estimated also the temperature and void effects for the fresh core. As would be expected, we have found for the fresh core a significant difference between reactor and Maxwell spectra, which was used before for averaging cross sections in the Oklo reactor. The averaged cross section of Sm-149 and its dependence on the shift of resonance position (due to variation of fundamental constants) are significantly different from previous results. Contrary to results of some previous papers we find no evidence for the change of the fine structure constant in the past and obtain new, most accurate limits on its variation with time: -4 10^{-17}year^{-1} < d alpha/dt/alpha < 3 10^{-17} year^{-1} A further improvement in the accuracy of the limits can be achieved by taking account of the core burnup. These calculations are in progress.Comment: 25 pages, 14 figures, 12 tables, minor corrections, typos correcte

Inhibición de butirilcolinesterasa en dos perros intoxicados y confirmación analítica de carbofuran como agente causal

Ferré, D.M.; Saldeña, E.L.; Albarracín, L.; Neuilly, V.; Gorla, N.B.: Inhibición de butirilcolinesterasa en dos perros intoxicados y confirmación analítica de carbofuran como agente causal. Rev. vet. 26: 1, 43-48, 2015

From Doldrums to Progressing Knowledge: Identifying Stifling Issues in Criminological Theory Building and Testing

In the explanation of crime, although each social science has a primary focus of theoretical development, there are a number of areas where disciplines unwittingly parallel one another. Such parallel development promotes unnecessary competition among theories and prevents them from progressing knowledge. Additionally, theorists often discard related concepts presented by other disciplines, if they considered at all, which is indicative of an imbalance in the disciplinary frame of reference (e.g., psychology over sociology). Such imbalance and lack of cross-referencing impedes the ability of theories to adequately explain and understand criminality. This paper revisits how the theorizing of crime may benefit from such cross-referencing through what we refer to as a reciprocating perspective. Drawing on interdisciplinary literature, we present a conceptual approach that can aid in strengthening theoretical development. Aiming to create an interdisciplinary bridge, we address key pitfallsin criminological theory development through four main elements: (1) concept formalization, (2) multi-level conceptualization, (3) causality, and (4) application. We also outline problems caused by such imbalance, and the progress made possible by the approach

Le Théâtre Sériel, l Autre Scène de Crime (approche Projective Psychocriminologique du Meurtre en Série)

La présente recherche vise à élaborer une perspective nouvelle d analyse de la scène de crime sérielle selon un paradigme psycho-criminologique. A cette fin, il sera fait usage d une méthodologie à plusieurs niveaux, combinant approche phénoménologique, avec analyse de données statistiques, et ce, de façon comparative. Les discours se positionnant sur la scène et son analyse seront d abord identifiés et présentés, qu il s agisse du discours légal, du discours médico-légal, du discours policier, du discours psy , du discours politique ou encore du discours médiatique. Puis des scènes de morts, violentes et non violentes, criminelles, et non criminelles, codées lors de séjours de recherches dans deux instituts médico-légaux (l un en France, l autre aux Etats-Unis) seront utilisées de façon statistique comme illustration de la complexité phénoménologique de la scène. Ces mêmes scènes seront ensuite analysées qualitativement, afin de donner du relief aux analyses statistiquesThe present research seeks to establish a new perspective on serial crime scene analysis, following a psycho-criminological paradigm. In order to achieve this goal, a multi-level methodology will be used, combining a phenomenological approach and statistical analyses, in a comparative manner. The discourses having stakes in the crime scene and its analysis will first be identified and presented, whether they be legal, medico-legal, police-related, psych, political, or media-related. Death scenes, be they violent or not, criminal or not, collected during a field research in two medical examiners officers (one in France and one in the United States), will then be used statistically in order to illustrate the phenomenological complexity of the scene. These same data will then be qualitatively analyzed so as to give depth to the statistical analysisRENNES2-BU Centrale (352382101) / SudocSudocFranceF

Simulation des effets macroeconomiques d'un programme de depenses pour l'environnement (Application du modele POLLEN pour la periode 1983-1990)

SIGLECNRS-CDST / INIST-CNRS - Institut de l'Information Scientifique et TechniqueFRFranc

Compte rendu des principaux travaux effectues par l'Ecotheque mediterraneenne du CNRS pour MED Checklist/optima

SIGLECNRS-CDST / INIST-CNRS - Institut de l'Information Scientifique et TechniqueFRFranc