Microscopic calculations of spin polarized neutron matter at finite temperature

The properties of spin polarized neutron matter are studied both at zero and finite temperature within the framework of the Brueckner--Hartree--Fock formalism, using the Argonne v18 nucleon-nucleon interaction. The free energy, energy and entropy per particle are calculated for several values of the spin polarization, densities and temperatures together with the magnetic susceptibility of the system. The results show no indication of a ferromagnetic transition at any density and temperature.Comment: 19 pages, 5 figure

A study to assess motivational factors in pursuing higher education: a multicultural perspective

The purpose of this investigation was to (a) determine the motivational factors of students attending Camden County College in Blackwood and to (b) determine if their cultural background played a part in them choosing collective or individualistic reasons to attend. One hundred students were surveyed. Each student was given a survey of 16 questions, eight questions measured individualism and eight measured collectivism. A one-way MANOVA found that the students from Camden County College demonstrated individualistic characteristics regardless of race. The average responses for going to college were more individualistic than hypothesized However, Latinos and African Americans still scored higher on collectivist traits. Other significant factors such as parental level of education are discussed. This study backs up findings that most students who attend community college are first generation college students. These students face additional barriers that others may not. This study will address ways to handle these barriers and discuss the importance of having the right support system

Pediatric Hand Surgery Training in Nicaragua: A Sustainable Model of Surgical Education in a Resource-Poor Environment.

Recent reports have demonstrated that nearly two-thirds of the world's population do not have access to adequate surgical care, a burden that is borne disproportionately by residents of resource-poor countries. Although the reasons for limited access to surgical care are complex and multi-factorial, among the most substantial barriers is the lack of trained surgical providers. This is particularly true in surgical subspecialties that focus on life-improving, rather than life-saving, treatments, such as pediatric hand and upper extremity surgery, which manages such conditions as congenital malformations, trauma and post-traumatic deformities including burns, and neuromuscular conditions (brachial plexus birth palsy, spinal cord injury, and cerebral palsy). Many models of providing surgical care in resource-limited environments have been described and implemented, but few result in sustainable models of health-care delivery. We present our experience developing a pediatric hand and upper extremity surgery training program in Nicaragua, a resource-limited nation, that grew out of a collaboration of American and Nicaraguan orthopedic surgeons. We compare this experience to that of surgeons undergoing subspecialty training in pediatric upper limb surgery in the US, highlighting the similarities and differences of these training programs. Finally, we assess the results of this training program and identify areas for further growth and development

Evaluation of Power System Security with Petri Nets

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GUÍA DE ORIENTACIÓN PEDAGÓGICA PARA LA ENSEÑANZA DEL PORTUGUÉS EN LA EDUCACIÓN BÁSICA: PROPUESTAS CON MODELOS GAMIFICADOS, PLATAFORMAS VIRTUALES Y APLICACIONES DIGITALES

O presente trabalho apresenta um guia de orientação pedagógica para o ensino da Língua Portuguesa a partir de soluções gamificadas, plataformas virtuais e aplicativos digitais. Tal documento está vinculado à pesquisa desenvolvida no curso de Mestrado do Programa de Pós-Graduação Stricto Sensu de Formação de Professores e Práticas Interdisciplinares (PPGFPPI) da Universidade de Pernambuco (UPE) Campus Petrolina. O objetivo é contribuir com a formação pedagógica dos docentes no que tange às metodologias ativas, que neste material se compõe de jogos digitais e de estratégias de gamificação. Este produto educacional se configura como um E-book construído a partir das necessidades apresentadas por professores de Língua Portuguesa no lócus de nossa pesquisa, como forma de sugerir o uso de jogos e suas estratégias em processos de aprendizagem mais engajados e significativos. Destaca-se que essas propostas não devem ser seguidas à risca pelos professores, mas precisam ser avaliadas a partir de suas necessidades didáticas.This work presents a pedagogical orientation guide for the teaching of the Portuguese language from gamified solutions, virtual platforms and digital applications. This document is linked to research developed in the Master's course of the Stricto Sensu Graduate Program for Teacher Training and Interdisciplinary Practices (PPGFPPI) at the University of Pernambuco (UPE) Campus Petrolina. The objective is to contribute to the pedagogical training of teachers regarding active methodologies, which in this material are composed of digital games and gamification strategies. This educational product is configured as an E-book built from the needs presented by Portuguese Language teachers in the locus of our research, as a way of suggesting the use of games and their strategies in more engaged and meaningful learning processes. It is noteworthy that these proposals should not be strictly followed by teachers, but need to be evaluated based on their didactic needs.Este trabajo presenta una guía de orientación pedagógica para la enseñanza de la lengua portuguesa a partir de soluciones gamificadas, plataformas virtuales y aplicaciones digitales. Este documento está vinculado a una investigación desarrollada en el curso de Maestría Programa de Posgrado Stricto Sensu en Formación de Profesores y Prácticas Interdisciplinarias (PPGFPPI) de la Universidad de Pernambuco (UPE) Campus Petrolina. El objetivo es contribuir a la formación pedagógica de los docentes respecto a metodologías activas, que en este material se componen de juegos digitales y estrategias de gamificación. Este producto educativo se configura como un libro electrónico construido a partir de las necesidades presentadas por los profesores de lengua portuguesa en el lugar de nuestra investigación, como una forma de sugerir el uso de juegos y sus estrategias en procesos de aprendizaje más comprometidos y significativos. Cabe señalar que estas propuestas no deben ser seguidas estrictamente por los docentes, sino que deben ser evaluadas en función de sus necesidades didácticas

The entropy of a correlated system of nucleons

Realistic nucleon-nucleon interaction induce correlations to the nuclear many-body system which lead to a fragmentation of the single-particle strength over a wide range of energies and momenta. We address the question of how this fragmentation affects the thermodynamical properties of nuclear matter. In particular, we show that the entropy can be computed with the help of a spectral function which can be evaluated in terms of the self-energy obtained in the Self-Consistent Green's Function approach. Results for the density and temperature dependences of the entropy per particle for symmetric nuclear matter are presented and compared to the results of lowest order finite temperature Brueckner--Hartree--Fock calculations. The effects of correlations on the calculated entropy are small, if the appropriate quasi-particle approximation is used. The results demonstrate the thermodynamical consistency of the self-consistent T-matrix approximation for the evaluation of the Green's functions.Comment: REVTEX4 - 43 pages, 10 figures - Published versio

The entropy of a correlated system of nucleons

Realistic nucleon-nucleon interaction induce correlations to the nuclear many-body system which lead to a fragmentation of the single-particle strength over a wide range of energies and momenta. We address the question of how this fragmentation affects the thermodynamical properties of nuclear matter. In particular, we show that the entropy can be computed with the help of a spectral function which can be evaluated in terms of the self-energy obtained in the Self-Consistent Green's Function approach. Results for the density and temperature dependences of the entropy per particle for symmetric nuclear matter are presented and compared to the results of lowest order finite temperature Brueckner--Hartree--Fock calculations. The effects of correlations on the calculated entropy are small, if the appropriate quasi-particle approximation is used. The results demonstrate the thermodynamical consistency of the self-consistent T-matrix approximation for the evaluation of the Green's functions.Comment: REVTEX4 - 43 pages, 10 figures - Published versio

Correlations in Hot Asymmetric Nuclear Matter

The single-particle spectral functions in asymmetric nuclear matter are computed using the ladder approximation within the theory of finite temperature Green's functions. The internal energy and the momentum distributions of protons and neutrons are studied as a function of the density and the asymmetry of the system. The proton states are more strongly depleted when the asymmetry increases while the occupation of the neutron states is enhanced as compared to the symmetric case. The self-consistent Green's function approach leads to slightly smaller energies as compared to the Brueckner Hartree Fock approach. This effect increases with density and thereby modifies the saturation density and leads to smaller symmetry energies.Comment: 7 pages, 7 figure

Alineamiento estratégico:ajustes en la estructura organizacional y diseño de mapa de procesos en una ONG orientada a salud

La presente tesis trata de la alineación estratégica (que la estrategia desarrollada se vea reflejada en su organización), de una Institución sin fines de Lucro (ONG) que trabaja en el sector salud por más de 20 años y es de reconocido prestigio en el sector donde se desarrolla: atención medica, laboratorio, investigación y gestión de proyectos y programas sociales. Esta alineación se basa en los tres elementos claves de toda organización: Estrategia, Estructura y Procesos, donde estas últimas se construyen en base a la estrategia definida, para ello se diseñan o rediseñan los instrumentos macros esenciales para la gestión: La estructura Organizacional (Organigrama) y el Mapa de Procesos. Para el logro de este objetivo, se utiliza metodologías plasmadas por Huaman y Rios (2008), donde el diseño de la estructura organizacional está basada en la metodología de los autores Vigo y Segura, mientras metodología del diseño del Mapa de Procesos esta basada su construcción en la cadena de Valor de Michael Porter. Para el diseño de una estructura organizacional, se revisó el plan estratégico vigente de la institución, con énfasis en sus estrategias corporativas y de negocios, y su despliegue basado en objetivos (¿qué quiero?) y actividades (¿cómo lo consigo?); y es con estas últimas con las que se trabaja para la formación de la estructura, pasando cada una de estas, por un análisis de sensibilidad con el logro del objetivo (nivel de jerarquía) y un análisis de relaciones entre ellas (especialización). Para el diseño del mapa de procesos se comenzó con las 3 preguntas básicas: ¿qué hace la organización? definiendo sus productos, ¿para quien? Definiendo sus clientes, y ¿Cómo lo hace?, definiendo sus procesos, y es con este ultimo que basado en las actividades, se usa la cadena de valor para esquematizarlo, y luego generar el Mapa de Procesos. iii Toda esta metodología se realizo en base a talleres y reuniones con los directivos, en el cual se tomaron decisiones de diseño relevantes para la definición de los instrumentos. El resultado obtenido fue la modificación de la estructura organizacional actual, eliminando áreas, mejorando la especialización del conocimiento y la integración del trabajo. También se creó el mapa de Procesos, donde quedo en evidencia la gran cantidad de actividades que realiza la organización, generando la eliminando de algunas que no generaban valor, así con el cambio de foco del personal interno, que estaban orientados a la tarea, y no a los resultados.Tesi