Observability of the Heavy Neutral SUSY Higgs Bosons Decaying into Neutralinos

A prospective study for the observation of the decays of heavy neutral Higgs bosons into supersymmetric particles at the Large Hadron Collider is presented . The analysis focuses on the decay of the Higgs bosons into a pair of next-to-lightest neutralinos chi2, followed by the cascade down to the lightest neutralino, chi2 to l+ l- chi1. The final state is characterized by the presence of four isolated and missing tranverse energy. The parameter space of the minimal Supergravity model is explored and favorable regions for the observation of the A/H bosons are identified. The A/H bosons could be discovered in the 2e2mu channel in the mass region mA,H (250,400) GeV/c2 with an integrated luminosity of 30 fb-1

Observability of the heavy neutral SUSY Higgs bosons decaying into neutralinos at the LHC

Research Note From Collaboration; A prospective study for the observability of heavy neutral Higgs bosons decaying into supersymmetric particles at the Large Hadron Collider with the CMS detector is presented. The analysis focuses on the decay of the Higgs bosons into a pair of next-to-lightest neutralinos χ02, followed by the cascade down to the lightest neutralino, χ02 → l+l-χ01. The final state is characterized by the presence of four isolated leptons and missing transverse energy. The parameter space of the minimal supergravity model is explored and favourable regions for the observation of the A0/H0 bosons are identified. The A0/H0 bosons could be discovered in the 2e2μ channel in the mass region 250 lesssim mA/H lesssim 400 GeV/c2 with an integrated luminosity of 30 fb-1

Acid stress response in Escherichia coli: mechanism of regulation of gadA transcription by RcsB and GadE

Escherichia coli can survive extreme acid stress for several hours. The most efficient acid resistance system is based on glutamate decarboxylation by the GadA and GadB decarboxylases and the import of glutamate via the GadC membrane protein. The expression of the corresponding genes is controlled by GadE, the central activator of glutamate-dependent acid resistance (GDAR). We have previously shown by genetic approaches that as well as GadE, the response regulator of the Rcs system, RcsB is absolutely required for control of gadA/BC transcription. In the presence of GadE, basal activity of RcsB stimulates the expression of gadA/BC, whereas activation of RcsB leads to general repression of the gad genes. We report here the results of various in vitro assays that show RcsB to regulate by direct binding to the gadA promoter region. Furthermore, activation of gadA transcription requires a GAD box and binding of an RcsB/GadE heterodimer. In addition, we have identified an RcsB box, which lies just upstream of the −10 element of gadA promoter and is involved in repression of this operon

Para a noção de transformação curricular

Neste artigo é evidenciada a relação entre currículo e conhecimento, abordando-se o conhecimento escolar na sua seleção, organização e transformação, a partir de uma revisão do conceito de transposição didática e da proposição dos conceitos de transformação curricular e transformação didática. Qualquer debate sobre o currículo exige a dilucidação do conhecimento e uma reflexão sobre os seus diversos significados, sobretudo quando a educação se torna num projeto amplo de questionamento da realidade social. Para além de várias questões colocadas acerca do conhecimento escolar e do modo como a sua organização pode ser realizada, procura-se centrar o debate numa reflexão sobre as fronteiras entre conhecimentos e esclarecer que, sobre essa temática, jamais poderão existir respostas fechadas.This article highlights the link between curriculum and knowledge, the approach of school knowledge’s selection, organization and transformation is based on a revision of the concept of didactic transposition and on the proposal of the concepts of curriculum and didactic transformation. Debates on curriculum demand an explanation and a reflection on the multiple meanings of knowledge mainly when education aims to be a broad project to contest social reality. It aims to focus the discussion on a reflection regarding the borders between knowledges and to show that in this subject there are never closed answers.Dans cet article est mis en évidence le rapport entre le curriculum et la connaissance, en abordant la connaissance scolaire dans sa sélection, son organisation et sa transformation à partir d’une révision du concept de transposition didactique et de la proposition des concepts de transformation du curriculum et de transformation didactique. Toute discussion sur le curriculum exige la dilucidation de la connaissance et une réflexion sur ses plusieurs signifiés, surtout quand l’éducation devient un projet plus large de mise en question de la réalité sociale. Au delà des plusieurs questions posées autour de la connaissance scolaire et de la manière comme son organisation peut être réalisée, on cherche á fixer le débat dans une réflexion sur les frontières entre connaissances et éclaircir que, sur cette thématique jamais ne pourront exister des réponses absolues.En este trabajo se pone en evidencia la relación entre el currículum y el conocimiento, abordándose el conocimiento escolar en su selección, organización y transformación desde una revisión del concepto de transposición didáctica y de la proposición de los conceptos de transformación curricular y transformación didáctica. Cualquier discusión sobre el currículum requiere la aclaración del conocimiento y una reflexión sobre sus diversos significados, especialmente cuando la educación se convierte en un proyecto más amplio de cuestionamiento de la realidad social. Además de varias preguntas sobre el conocimiento escolar y el modo en el que su organización puede tener lugar, se intenta centrar el debate en una reflexión sobre las fronteras entre conocimientos y aclarar que en esta temática jamás podrán existir respuestas cerradas.(undefined

Energy Resolution Performance of the CMS Electromagnetic Calorimeter

The energy resolution performance of the CMS lead tungstate crystal electromagnetic calorimeter is presented. Measurements were made with an electron beam using a fully equipped supermodule of the calorimeter barrel. Results are given both for electrons incident on the centre of crystals and for electrons distributed uniformly over the calorimeter surface. The electron energy is reconstructed in matrices of 3 times 3 or 5 times 5 crystals centred on the crystal containing the maximum energy. Corrections for variations in the shower containment are applied in the case of uniform incidence. The resolution measured is consistent with the design goals

Differential cross section measurements for the production of a W boson in association with jets in proton–proton collisions at √s = 7 TeV

Measurements are reported of differential cross sections for the production of a W boson, which decays into a muon and a neutrino, in association with jets, as a function of several variables, including the transverse momenta (pT) and pseudorapidities of the four leading jets, the scalar sum of jet transverse momenta (HT), and the difference in azimuthal angle between the directions of each jet and the muon. The data sample of pp collisions at a centre-of-mass energy of 7 TeV was collected with the CMS detector at the LHC and corresponds to an integrated luminosity of 5.0 fb[superscript −1]. The measured cross sections are compared to predictions from Monte Carlo generators, MadGraph + pythia and sherpa, and to next-to-leading-order calculations from BlackHat + sherpa. The differential cross sections are found to be in agreement with the predictions, apart from the pT distributions of the leading jets at high pT values, the distributions of the HT at high-HT and low jet multiplicity, and the distribution of the difference in azimuthal angle between the leading jet and the muon at low values.United States. Dept. of EnergyNational Science Foundation (U.S.)Alfred P. Sloan Foundatio

Optimasi Portofolio Resiko Menggunakan Model Markowitz MVO Dikaitkan dengan Keterbatasan Manusia dalam Memprediksi Masa Depan dalam Perspektif Al-Qur`an

Risk portfolio on modern finance has become increasingly technical, requiring the use of sophisticated mathematical tools in both research and practice. Since companies cannot insure themselves completely against risk, as human incompetence in predicting the future precisely that written in Al-Quran surah Luqman verse 34, they have to manage it to yield an optimal portfolio. The objective here is to minimize the variance among all portfolios, or alternatively, to maximize expected return among all portfolios that has at least a certain expected return. Furthermore, this study focuses on optimizing risk portfolio so called Markowitz MVO (Mean-Variance Optimization). Some theoretical frameworks for analysis are arithmetic mean, geometric mean, variance, covariance, linear programming, and quadratic programming. Moreover, finding a minimum variance portfolio produces a convex quadratic programming, that is minimizing the objective function ðð¥with constraintsð ð 𥠥 ðandð´ð¥ = ð. The outcome of this research is the solution of optimal risk portofolio in some investments that could be finished smoothly using MATLAB R2007b software together with its graphic analysis

Penilaian Kinerja Keuangan Koperasi di Kabupaten Pelalawan

This paper describe development and financial performance of cooperative in District Pelalawan among 2007 - 2008. Studies on primary and secondary cooperative in 12 sub-districts. Method in this stady use performance measuring of productivity, efficiency, growth, liquidity, and solvability of cooperative. Productivity of cooperative in Pelalawan was highly but efficiency still low. Profit and income were highly, even liquidity of cooperative very high, and solvability was good

Juxtaposing BTE and ATE – on the role of the European insurance industry in funding civil litigation

One of the ways in which legal services are financed, and indeed shaped, is through private insurance arrangement. Two contrasting types of legal expenses insurance contracts (LEI) seem to dominate in Europe: before the event (BTE) and after the event (ATE) legal expenses insurance. Notwithstanding institutional differences between different legal systems, BTE and ATE insurance arrangements may be instrumental if government policy is geared towards strengthening a market-oriented system of financing access to justice for individuals and business. At the same time, emphasizing the role of a private industry as a keeper of the gates to justice raises issues of accountability and transparency, not readily reconcilable with demands of competition. Moreover, multiple actors (clients, lawyers, courts, insurers) are involved, causing behavioural dynamics which are not easily predicted or influenced. Against this background, this paper looks into BTE and ATE arrangements by analysing the particularities of BTE and ATE arrangements currently available in some European jurisdictions and by painting a picture of their respective markets and legal contexts. This allows for some reflection on the performance of BTE and ATE providers as both financiers and keepers. Two issues emerge from the analysis that are worthy of some further reflection. Firstly, there is the problematic long-term sustainability of some ATE products. Secondly, the challenges faced by policymakers that would like to nudge consumers into voluntarily taking out BTE LEI