La lutte contre la maltraitance des personnes âgées : politique de la souffrance et sanitarisation du social

L’expression « maltraitance des personnes âgées » a récemment été institutionnalisée en France, avec la mise en place d’une politique visant à prévenir, dépister et sanctionner ces formes de violence, présentées comme spécifiques à la population âgée. Sont considérés comme intolérables les processus engendrant une altération scientifiquement prouvée de la santé ou une souffrance physique ou psychique démontrable. La question des relations sociales aux âges élevés n’est abordée qu’à travers celle de la dignité, et plus particulièrement de la présentation d’un corps propre dans un environnement hygiénique. Les inégalités étrangères à l’âge sont occultées dans cette lutte contre les maltraitances qui est une politique de la souffrance, et répond, par de multiples aspects, à une logique de sanitarisation du social.The term “elder abuse” has been recently institutionalised in France, with policies meant to prevent, detect, and punish such types of violence, seen as specific to the elderly. Any process that provokes a scientifically documented change in health or demonstrable physical or psychological suffering is deemed unacceptable. The issue of social relations in old age is limited to matters of dignity and more particularly to personal hygiene in a clean environment. The campaign against elder abuse ignores inequalities other than those that are age-related. It focuses on suffering and, in many ways, it medicalises the social

Hidden Extra U(1) at the Electroweak/TeV Scale

We propose a simple extension of the Standard Model (SM) by adding an extra U(1) symmetry which is hidden from the SM sector. Such a hidden U(1) has not been considered before, and its existence at the TeV scale can be explored at the LHC. This hidden U(1) does not couple directly to the SM particles, and couples only to new SU(2)_L singlet exotic quarks and singlet Higgs bosons, and is broken at the TeV scale. The dominant signals at the high energy hadron colliders are multi lepton and multi b-jet final states with or without missing energy. We calculate the signal rates as well as the corresponding Standard Model background for these final states. A very distinctive signal is 6 high p_T b-jets in the final state with no missing energy. For a wide range of the exotic quarks masses the signals are observable above the background at the LHC.Comment: 19 pages, 5 figure

Higgs Phenomenology in Warped Extra-Dimensions with a 4th Generation

We study a warped extra-dimension scenario where the Standard Model fields lie in the bulk, with the addition of a fourth family of fermions. We concentrate on the flavor structure of the Higgs couplings with fermions in the flavor anarchy ansatz. Even without a fourth family, these couplings will be generically misaligned with respect to the SM fermion mass matrices. The presence of the fourth family typically enhances the misalignment effects and we show that one should expect them to be highly non-symmetrical in the ${(34)}$ inter-generational mixing. The radiative corrections from the new fermions and their flavor violating couplings to the Higgs affect negligibly known experimental precision measurements such as the oblique parameters and $Z\to b {\bar b}$ or $Z \to \mu^+ \mu^-$. On the other hand, $\Delta F=1,2$ processes, mediated by tree-level Higgs exchange, as well as radiative corrections to $b \to s \gamma$ and $\mu \to e\gamma$ put some generic pressure on the allowed size of the flavor violating couplings. But more importantly, these couplings will alter the Higgs decay patterns as well as those of the new fermions, and produce very interesting new signals associated to Higgs phenomenology in high energy colliders. These might become very important indirect signals for these type of models as they would be present even when the KK mass scale is high and no heavy KK particle is discovered.Comment: 39 pages, 6 figure

Conflit d'intérêt économique entre avocats et clients : la questions des honoraires

In the line of the agency question, the lawyer/client relationship cannot escape the risk of conflict of interests. This text broadly redefines the nature of this conflict, and links it to an important source of tension, i.e. fees. We study three types of billing : contingency fees, hourly, and alternative billing. Besides billing structures, we examine their influence on this latent conflict, and propose a few ways of managing and preventing tensions.Agency question; Principal/agent tension; Lawyer; Conflict of interests; Tension management; Billing structure; Contingency fees; Hourly billing; Alternative billing

Estudio retrospectivo de caracterización de la hepatozoonosis canina en Buenos Aires

La hepatozoonosis canina es una enfermedad parasitaria causada por protozoarios del género Hepatozoon (Apicomplexa, Eucoccida) y trasmitida por garrapatas. En Argentina, esta enfermedad fue descripta por primera vez en 1999 y recién en 2007 fue identificado Hepatozoon canis como el agente etiológico. El objetivo de este trabajo fue caracterizar la hepatozoonosis en perros del sur del Gran Buenos Aires. Para ello, se analizaron los hemogramas de 100123 muestras de sangre canina remitidas entre 2002-2013 al laboratorio DIAP (Diagnóstico en Animales Pequeños), ubicado en Banfield. La presencia de Hepatozoon se detectó mediante observación microscópica de frotis sanguíneos coloreados con May Grünwald-Giemsa. Se registraron 2328 (2,3%) muestras con gamontes de Hepatozoon, observándose generalmente en neutrófilos y eventualmente en monocitos. La parasitemia fue elevada, moderada y baja en el 29,2%, 46,7% y 18,6% de las muestras, respectivamente. El 56,9% de los casos presentó anemia, que se clasificó a su vez en no regenerativa (69,7%), regenerativa (18,6%) y muy regenerativa (11,7%). Se observó el 74,1% de los perros parasitémicos con leucograma inflamatorio, aunque solo el 36,3% de los casos presentaba leucocitosis y el 7,5% leucopenia. Desde la perspectiva epidemiológica, se registró una marcada variación estacional de la prevalencia, con máximas en verano y mínimas en invierno y una tendencia en aumento durante los últimos años. La prevalencia fue significativamente mayor en los perros machos, los de razas mestiza, y en los menores de 1 año. Hepatozoon se encontró coinfectando con merozoitos de Babesia en 17 casos y con microfilarias de Dirofilaria en 7. El presente estudio demuestra que la infección por H. canis es endémica en el sur del Gran Buenos Aires, y que la mayoría de los perros infectados presentan anomalías hematológicas y niveles de parasitemia entre medianos y altos. La hepatozoonosis debe ser considerada como parte del diagnóstico de rutina, especialmente en meses cálidos donde hay mayor cantidad de garrapatas.Facultad de Ciencias Veterinaria

Estudio retrospectivo de caracterización de la hepatozoonosis canina en Buenos Aires

La hepatozoonosis canina es una enfermedad parasitaria causada por protozoarios del género Hepatozoon (Apicomplexa, Eucoccida) y trasmitida por garrapatas. En Argentina, esta enfermedad fue descripta por primera vez en 1999 y recién en 2007 fue identificado Hepatozoon canis como el agente etiológico. El objetivo de este trabajo fue caracterizar la hepatozoonosis en perros del sur del Gran Buenos Aires. Para ello, se analizaron los hemogramas de 100123 muestras de sangre canina remitidas entre 2002-2013 al laboratorio DIAP (Diagnóstico en Animales Pequeños), ubicado en Banfield. La presencia de Hepatozoon se detectó mediante observación microscópica de frotis sanguíneos coloreados con May Grünwald-Giemsa. Se registraron 2328 (2,3%) muestras con gamontes de Hepatozoon, observándose generalmente en neutrófilos y eventualmente en monocitos. La parasitemia fue elevada, moderada y baja en el 29,2%, 46,7% y 18,6% de las muestras, respectivamente. El 56,9% de los casos presentó anemia, que se clasificó a su vez en no regenerativa (69,7%), regenerativa (18,6%) y muy regenerativa (11,7%). Se observó el 74,1% de los perros parasitémicos con leucograma inflamatorio, aunque solo el 36,3% de los casos presentaba leucocitosis y el 7,5% leucopenia. Desde la perspectiva epidemiológica, se registró una marcada variación estacional de la prevalencia, con máximas en verano y mínimas en invierno y una tendencia en aumento durante los últimos años. La prevalencia fue significativamente mayor en los perros machos, los de razas mestiza, y en los menores de 1 año. Hepatozoon se encontró coinfectando con merozoitos de Babesia en 17 casos y con microfilarias de Dirofilaria en 7. El presente estudio demuestra que la infección por H. canis es endémica en el sur del Gran Buenos Aires, y que la mayoría de los perros infectados presentan anomalías hematológicas y niveles de parasitemia entre medianos y altos. La hepatozoonosis debe ser considerada como parte del diagnóstico de rutina, especialmente en meses cálidos donde hay mayor cantidad de garrapatas.Facultad de Ciencias Veterinaria

Search for a dijet resonance in events with jets and missing transverse energy in pp̄ collisions at √s=1.96 TeV

We report on a search for a dijet resonance in events with only two or three jets and a large imbalance in the total event transverse momentum. This search is sensitive to the possible production of a new particle in association with a W or Z boson, where the boson decays leptonically with one or more neutrinos in the final state. We use the full data set collected by the CDF II detector at the Tevatron collider at a proton-antiproton center-of-mass energy of 1.96 TeV. These data correspond to an integrated luminosity of 9.1 fb -1. We study the invariant mass distribution of the two jets with highest transverse energy. We find good agreement between data and standard model background expectations and measure the combined cross section for WW, WZ, and ZZ production to be 13.8-2.7+3.0 pb. No significant anomalies are observed in the mass spectrum, and 95% credibility level upper limits are set on the production rates of a potential new particle in association with a W or Z boson. © 2013 American Physical Society.This work was supported by the U.S. Department of Energy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture, Sports, Science and Technology of Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the Republic of China; the Swiss National Science Foundation; the A. P. Sloan Foundation; the Bundesministerium für Bildung und Forschung, Germany; the Korean World Class University Program, the National Research Foundation of Korea; the Science and Technology Facilities Council and the Royal Society, UK; the Russian Foundation for Basic Research; the Ministerio de Ciencia e Innovación, and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D Agency; the Academy of Finland; and the Australian Research Council (ARC); and the EU community Marie Curie Fellowship Contract No. 302103.Peer Reviewe

Measurement of CP-violating asymmetries in D0→π +π - and D0→K +K - decays at CDF

We report on a measurement of CP-violating asymmetries (A CP) in the Cabibbo-suppressed D0→π +Ï€ - and D0→K +K - decays reconstructed in a data sample corresponding to 5.9fb -1 of integrated luminosity collected by the upgraded Collider Detector at Fermilab. We use the strong decay D *+→D0Ï€ + to identify the flavor of the charmed meson at production and exploit CP-conserving strong ccÌ„ pair production in ppÌ„ collisions. High-statistics samples of Cabibbo-favored D0→K -Ï€ + decays with and without a D *± tag are used to correct for instrumental effects and significantly reduce systematic uncertainties. We measure A CP(D0→π +Ï€ -)=(+0.22±0.24(stat) ±0.11(syst))% and A CP(D0→K +K -)=(-0.24±0.22(stat)±0.09(syst))%, in agreement with CP conservation. These are the most precise determinations from a single experiment to date. Under the assumption of negligible direct CP violation in D0→π +Ï€ - and D0→K +K - decays, the results provide an upper limit to the CP-violating asymmetry in D0 mixing, |ACPind(D0)|<0.13% at the 90% confidence level. © 2012 American Physical Society.This work was supported by the U.S. Department of Energy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture, Sports, Science and Technology of Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the Republic of China; the Swiss National Science Foundation; the A.P. Sloan Foundation; the Bundesministerium fü̈r Bildung und Forschung, Germany; the Korean World Class University Program, the National Research Foundation of Korea; the Science and Technology Facilities Council and the Royal Society, UK; the Russian Foundation for Basic Research; the Ministerio de Ciencia e Innovación, and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D Agency; and the Academy of Finland.Peer Reviewe

Measurement of the WW and WZ production cross section using final states with a charged lepton and heavy-flavor jets in the full CDF Run II data set

et al.We present a measurement of the total WW and WZ production cross sections in pp¯ collision at √s=1.96 TeV, in a final state consistent with leptonic W boson decay and jets originating from heavy-flavor quarks from either a W or a Z boson decay. This analysis uses the full data set collected with the CDF II detector during Run II of the Tevatron collider, corresponding to an integrated luminosity of 9.4 fb-1. An analysis of the dijet mass spectrum provides 3.7σ evidence of the summed production processes of either WW or WZ bosons with a measured total cross section of σWW+WZ=13.7±3.9 pb. Independent measurements of the WW and WZ production cross sections are allowed by the different heavy-flavor decay patterns of the W and Z bosons and by the analysis of secondary-decay vertices reconstructed within heavy-flavor jets. The productions of WW and of WZ dibosons are independently seen with significances of 2.9σ and 2.1σ, respectively, with total cross sections of σWW=9.4±4.2 pb and σWZ=3.7-2.2+2.5 pb. The measurements are consistent with standard-model predictions.This work was supported by the U.S. Department of Energy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture, Sports, Science and Technology of Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the Republic of China; the Swiss National Science Foundation; the A. P. Sloan Foundation; the Bundesministerium für Bildung und Forschung, Germany; the Korean World Class University Program, the National Research Foundation of Korea; the Science and Technology Facilities Council and the Royal Society, UK; the Russian Foundation for Basic Research; the Ministerio de Ciencia e Innovación, and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D Agency; the Academy of Finland; and the Australian Research Council (ARC).Peer Reviewe