The Basic Cycles of Vocational Training: Student Satisfaction and Perceived Benefit

This study aims to better understand students who attend Basic Vocational Training Cycles (Basic Professional Training, BTP) by implementing measures that ensure diversity. This quantitative research project approximated students’ perception of their passage through previous studies and their satisfaction and goals after finishing the school year. The sample consisted of 352 students from Cordoba (Spain). A questionnaire was used that follows the CIPP model. After exploratory factor analysis was completed with different groups of items and their descriptive analyses, various tests were carried out to consider the hypotheses (Pearson’s correlation (r), one-factor analysis of variance, and repeated ANOVA measures). The results indicate that the educational interest of the students is academic and professional. Likewise, there is no relationship detected between socio-professional goals and average academic levels and attributions with respect to repetitions of previous courses, although these goals vary depending on students’ satisfaction with the vocational cycles. We conclude that the course of the FPB influences decisions regarding academic–professional projects

Simple analysis and design of a new leaky-wave directional coupler in hybrid dielectric-waveguide printed-circuit technology

This paper presents a new theory to analyze and design a novel leaky-wave coupler based on a hybrid dielectric-waveguide printed-circuit technology. The analysis theory is based on a combined method of moments (MoM) geometrical optics (GO) technique, which makes use of the leaky mode complex propagation constant. This MoM-GO approach allows to easily obtain the response of the coupler, and to illustratively understand the working mechanism of the proposed structure. A coupler is designed to work at 5.5 GHz. Leaky mode results are compared with three-dimensional finite-element method simulations, showing the validity and accuracy of the new theory developed. This novel directional coupler presents interesting advantages when compared to previous wave couplersThis work was supported in part under Spanish National Project ESP2001-4546-PE and Spanish National Project TEC2004-04313-C02-02-TCM and under the Regional Séneca Project 2002PB/4/FS/02

Factores de riesgo asociados a mortalidad neonatal en el servicio de neonatología del Hospital Humberto Alvarado del Departamento de Masaya en el periodo de Enero 2011 a Diciembre 2013

La Organización Mundial de la Salud (OMS) define la mortalidad neonatal como la muerte producida entre el nacimiento (niño que después de la expulsión completa de la madre, independientemente de la edad gestacional, respire o dé alguna señal de vida) hasta los 28 días de vida, la mortalidad neonatal constituye un indicador básico para expresar el nivel de desarrollo que tiene la atención del recién nacido en una determinada área geográfica o en un Servicio. (mundial, B.2014). Según el Banco Mundial y la OMS en sus últimos reportes revelan que la mortalidad neonatal de Nicaragua en el año 2012-2013 se mantuvo en 12 fallecidos por cada 1000 nacidos vivos, situándose en la región centroamericana en segundo lugar ala para de honduras (honduras= 12*1000; Guatemala: 15*1000; costa rica: 6*1000) sin poder superar aun a nuestra vecino costa rica quien lleva el primer lugar en la reducción de mortalidad neonatal. (OMS,2014) Los factores riesgo asociados a muerte neonatal se han identificado sociodemográficos (la edad materna menor a 15 años y el analfabetismo), los factores de riesgo Obstétricos (periodo Intergenesico mayor de 2 años, multigesta, primigestas, la Hipertensión arterial).En relación al neonato (peso por debajo de 2500 gramos al nacer y la edad gestacional menor a 37semanas, Además la depresión moderada del Apgar y la depresión severa). (mundial, B. 2014) Tres son las causas que explican las tres cuartas partes de la mortalidad neonatal en el mundo: partos prematuros (29%), asfixia (23%) e infecciones graves tales como sepsis y neumonía (25%) (OMS, 2015). Con el presente estudio se pretende conocer cuáles son los factores de riesgo más frecuentemente relacionados con muerte neonatal y poder incidir en la prevención del mismo con el fin de reducir las muertes neonatales en el hospital Humberto Alvarado Vázquez

Kernel-Based Framework for Multitemporal and Multisource Remote Sensing Data Classification and Change Detection

The multitemporal classification of remote sensing images is a challenging problem, in which the efficient combination of different sources of information (e.g., temporal, contextual, or multisensor) can improve the results. In this paper, we present a general framework based on kernel methods for the integration of heterogeneous sources of information. Using the theoretical principles in this framework, three main contributions are presented. First, a novel family of kernel-based methods for multitemporal classification of remote sensing images is presented. The second contribution is the development of nonlinear kernel classifiers for the well-known difference and ratioing change detection methods by formulating them in an adequate high-dimensional feature space. Finally, the presented methodology allows the integration of contextual information and multisensor images with different levels of nonlinear sophistication. The binary support vector (SV) classifier and the one-class SV domain description classifier are evaluated by using both linear and nonlinear kernel functions. Good performance on synthetic and real multitemporal classification scenarios illustrates the generalization of the framework and the capabilities of the proposed algorithms.Publicad

Non-linear System Identification with Composite Relevance Vector Machines

Nonlinear system identification based on relevance vector machines (RVMs) has been traditionally addressed by stacking the input and/or output regressors and then performing standard RVM regression. This letter introduces a full family of composite kernels in order to integrate the input and output information in the mapping function efficiently and hence generalize the standard approach. An improved trade-off between accuracy and sparsity is obtained in several benchmark problems. Also, the RVM yields confidence intervals for the predictions, and it is less sensitive to free parameter selectionPublicad

Kernel antenna array processing

We introduce two support vector machine (SVM)-based approaches for solving antenna problems such as beamforming, sidelobe suppression, and maximization of the signal-to-noise ratio. A basic introduction to SVM optimization is provided and a complex nonlinear SVM formulation developed to handle antenna array processing in space and time. The new optimization formulation is compared with both the minimum mean square error and the minimum variance distortionless response methods. Several examples are included to show the performance of the new approachesPublicad

Percepção dos estudantes sobre comportamento no ensino do professor e satisfação com a Educação Física: uma questão de gênero?

Este estudio analiza la satisfacción con la Educación Física (EF) y la percepción del comportamiento instructivo del profesor (CIP). Participaron 2.536 estudiantes (edad 13,7 ± 2,0). Se aplicaron dos escalas: a) escala de satisfacción con la EF; y b) escala de comportamientos instructivos del profesorado. Los resultados muestran una elevada satisfacción con la EF y la percepción de una buena frecuencia del CIP. Existen algunas diferencias significativas en función del género de los alumnos y profesores. No se produce empatía de género descrita en otros estudios: chicos y chicas perciben mayor frecuencia de comportamientos instructivos deseables cuando el profesor es mujer.Este trabalho analisa a satisfação com a educação física (EF) e a percepção do comportamento no ensino do professor. Participaram 2.536 estudantes (idade 13,77 ± 2,0). Foram aplicadas duas escalas: a) escala de satisfação com a educação física; y b) escala de comportamento no ensino dos professores. Os resultados demonstram uma alta satisfação com a EF, bem como a percepção de uma boa freqüência do comportamento no ensino do professor. Existem algumas diferenças significativas em função do gênero dos alunos e professores. Não há relação direta de simpatia de gênero encontrada em outros estudos: meninos e meninas percebem com mais frequência um comportamento no ensino do professor de maneira desejável, quando ele é uma mulher.The purposes of this study were to analyze the satisfaction with PE and the perception of the students about of the Teacher´ Instructional Behaviours. Participants were 2,536 students (13.7 ± 2.0 years old). Two scales were applied: a) the satisfaction with PE scale; and b) the scale of perception of the Teacher´ Instructional Behaviours. The results illustrate a high level of satisfaction with PE. Students perceive instructional desirable behaviours of their teachers occur frequently. The findings show some significant differences in gender. There is not empathy of gender: both boys and girls perceive more f requent instructional desirable behaviour when the teacher is female.Estudio financiado por el Ministerio Español de Ciencia y Tecnología (Proyecto código SEJ2007-67267/EDU