63,988 research outputs found
Theoretical calculations for precision polarimetry based on Mott scattering
Get PDFElectron polarimeters based on Mott scattering are extensively used in different fields in physics such as atomic, nuclear or particle physics. This is because spin-dependent measurements give additional information on the physical processes under study. The main quantity that needs to be understood in very much detail, both experimentally and theoretically, is the spin-polarization function, so-called analyzing power or Sherman function. A detailed theoretical analysis on all the contributions to the effective interaction potential that are relevant at the typical electron beam energies and angles commonly used in the calibration of the experimental apparatus is presented. The main contribution leading the theoretical error on the Sherman function is found to correspond to radiative corrections that have been qualitatively estimated to be below the 0.5% for the considered kinematical conditions: unpolarized electron beams of few MeV elastically scattered from a gold and silver targets at backward angles
Nuclear equation of state from ground and collective excited state properties of nuclei
Get PDFThis contribution reviews the present status on the available constraints to the nuclear equation of state (EoS) around saturation density from nuclear structure calculations on ground and collective excited state properties of atomic nuclei. It concentrates on predictions based on self-consistent mean-field calculations, which can be considered as an approximate realization of an exact energy density functional (EDF). EDFs are derived from effective interactions commonly fitted to nuclear masses, charge radii and, in many cases, also to pseudo-data such as nuclear matter properties. Although in a model dependent way, EDFs constitute nowadays a unique tool to reliably and consistently access bulk ground state and collective excited state properties of atomic nuclei along the nuclear chart as well as the EoS. For comparison, some emphasis is also given to the results obtained with the so called ab initio approaches that aim at describing the nuclear EoS based on interactions fitted to few-body data only. Bridging the existent gap between these two frameworks will be essential since it may allow to improve our understanding on the diverse phenomenology observed in nuclei. Examples on observations from astrophysical objects and processes sensitive to the nuclear EoS are also briefly discussed. As the main conclusion, the isospin dependence of the nuclear EoS around saturation density and, to a lesser extent, the nuclear matter incompressibility remain to be accurately determined. Experimental and theoretical efforts in finding and measuring observables specially sensitive to the EoS properties are of paramount importance, not only for low-energy nuclear physics but also for nuclear astrophysics applications
Traces and shards of self-injury: Strange accounting with “Author X”
No full textIn this strange account autoethnography, three or four authors explore their lived experiences with self-injury. Strange accounting is both a post-modern style of text, and a method for keeping identities concealed when risks and secrets are in play. Author X, a post-modern place-keeper for an anonymous author who may or may not have contributed to this manuscript, introduces a new dimension and layer of concealment. With Author X in-play and under erasure, the reader will never be sure if there were three or four authors on this manuscript. Through strange accounting, a post-structuralist/postmodernist frame will be applied to understanding the self-injury experience. We frame self-injury as a social practice and, for some, an everyday norm, while remaining acutely aware of the stigma surrounding the topic of self-injury. Each of us, coupled with Author X, provide the others cover to trace stories of self-injury through the literature, our flesh, and our lives
Plan de Marketing Alberto Roca
No full text2018-2019GradosFacultad de Estudios Sociales y Lenguas Aplicada
Found in Translation
No full textNicolás Buendia Roca; director de proyecto: Luis Segundo Arana Sastre.Curso 2013-2014Grado en ArquitecturaEscuela Politécnica Superio
Peluquería para necesidades especiales
No full textRoca Godia, Mariona; director de proyecto: Camús Rosillo, Carmen2023-2024Curso de Formación Pedagógica y Didáctica para Profesorado de Formación Profesional y DeportivaFacultad de Ciencias de la Educació
Impact of the symmetry energy on the outer crust of nonaccreting neutron stars
No full textThe composition and equation of state of the outer crust of nonaccreting neutron stars is computed by using accurate nuclear mass tables. The main goal of the present study is to understand the impact of the symmetry energy on the structure of the outer crust. First, a simple "toy model" is developed to illustrate the competition between the electronic density and the symmetry energy, Then, realistic mass tables are used to show that models with a stiff symmetry energy-those that generate large neutron skins for heavy nuclei-predict a sequence of nuclei in the stellar environment that is more neutron rich than their softer counterparts. This result may be phrased in the form of a correlation: The larger the neutron skin of (208)Pb, the more exotic the composition of the outer crust
Proyecto de ejecución de edificio de 5 viviendas en Pinto. Desarrollo de estructuras. Opción B
No full textCódigo de proyecto: AQT 08055Miguel Roca Portillo ; director de proyecto: Consuelo Lozano RomeroCurso 2008-2009Arquitectura Técnica (AQT)Escuela Politécnica Superio
Unidades didácticas virtuales con moodle+wiki
No full textCódigo de proyecto: GSI 11025Ángel Charco Roca; director de proyecto: Antonio José Reinoso PeinadoCurso 2011-2012Grado en Ingeniería de Sistemas de Información (GSI)Escuela Politécnica Superio
Diseño de 3 sesiones de trabajo sobre "El átomo" para 4¿ð de la ESO, ver su efecto en la motivación de los alumnos e intentar dar cobertura a los diferentes estilo de aprendizaje presentes en el aula
No full textCódigo del trabajo: MUP 14416Montserrat Roca Serra ; director del trabajo:Mercedes Ruiz Miranda.Curso 2015-2016Máster Universitario en Profesorado de Educación Secundaria Obligatoria y Bachillerato, Formación Profesional y Enseñanza de Idiomas (MUP)Facultad de Estudios Sociale
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