Ingenieria Industrial

This paper presents a search for the t-channel exchange of an R-parity violating scalar top quark (t) in the e ± µ ∓ continuum using 2.1 fb −1 of data collected by the ATLAS detector in √ s = 7 TeV pp collisions at the Large Hadron Collider. Data are found to be consistent with the expectation from the Standard Model backgrounds. Limits on R-parity-violating couplings at 95% C.L. are calculated as a function of the scalar top mass (mt). The upper limits on the production cross section for pp → eµX, through the t-channel exchange of a scalar top quark, ranges from 170 fb for mt = 95 GeV to 30 fb for mt = 1000 GeV.

A search for diphoton events with large missing transverse momentum has been performed using proton-proton collision data at √ s = 7 TeV recorded with the ATLAS detector, corresponding to an integrated luminosity of 4.8 fb −1 . No excess of events was observed above the Standard Model prediction and model-dependent 95 % confidence level exclusion limits are set. In the context of a generalised model of gauge-mediated supersymmetry breaking with a bino-like lightest neutralino of mass above 50 GeV, gluinos (squarks) below 1.07 TeV (0.87 TeV) are excluded, while a breaking scale Λ below 196 TeV is excluded for a minimal model of gauge-mediated supersymmetry breaking. For a specific model with one universal extra dimension, compactification scales 1/R < 1.40 TeV are excluded. These limits provide the most stringent tests of these models to date.

! ! The EFCE Working Party on Loss Prevention organized its 1 st symposium in 1974 ! ! Past year, the 13 th symposium has been held in Florence and with much success ! ! Over the years the field of loss prevention and process safety much widened/ deepened ! ! Due to complexity and cost, human and management aspects became very important ! ! New approaches and methods are proposed to tackle the new challenges

Epigenetic mechanisms such as DNA methylation and modifi cations to histone proteins regulate high-order DNA structure and gene expression. Aberrant epigenetic mechanisms are involved in the development of many diseases, including cancer. The neurological disorder most intensely studied with regard to epigenetic changes is Rett syndrome; patients with Rett syndrome have neurodevelopmental defects associated with mutations in MeCP2, which encodes the methyl CpG binding protein 2, that binds to methylated DNA. Other mental retardation disorders are also linked to the disruption of genes involved in epigenetic mechanisms; such disorders include alpha thalassaemia/mental retardation X-linked syndrome, Rubinstein-Taybi syndrome, and Coffi n-Lowry syndrome. Moreover, aberrant DNA methylation and histone modifi cation profi les of discrete DNA sequences, and those at a genome-wide level, have just begun to be described for neurodegenerative disorders such as Alzheimer's disease, Parkinson's disease, and Huntington's disease, and in other neurological disorders such as multiple sclerosis, epilepsy, and amyotrophic lateral sclerosis. In this Review, we describe epigenetic changes present in neurological diseases and discuss the therapeutic potential of epigenetic drugs, such as histone deacetylase inhibitors.

Este documento constituye una oferta de cotización y por tanto no representa garantía alguna de la aceptación por parte de las compañías aseguradoras del riesgo cotizado, el cual queda sujeto a las políticas de aceptación definidas en la solicitud del seguro.

El diagrama de flujo es una representación gráfica de la secuencia de pasos que se realizan para obtener un cierto resultado. Este puede ser un producto, un servicio (procedimiento administrativo), o bien una combinación de ambos. ¿Qué función cumple un diagrama de flujo?

Matrícula : A07025332 Nombre del tutor: Agustín Pinete Fecha: 24/09/2014 1. Cuando un gas aumenta su volumen es porque se está efectuando un trabajo sobre él. VERDADERO 2. El trabajo efectuado por un gas tiene signo negativo FALSO Cuando el volumen final es mayor que el inicial el gas se expande y el trabajo es positivo.