Análisis de técnicas interactivas para la navegación en 3D

“Los mapas son una herramienta útil para las personas en diferentes maneras. En un principio los mapas fueron iniciados con el propósito de conocer el mundo, pero hoy en día son una fuente importante de información, más específicamente hablando, se resalta su utilidad cuando se trata de hallar un lugar en particular, o familiarizarse con un entorno para hacer más fácil el recorrido real. Algunos mapas también cuentan con medidas métricas, lo que hace posible tomar medidas de distancia, la cual está relacionada con las medidas del mundo real. Los mapas han pasados por diferentes etapas en cuanto a su creación, en un principio eran solamente trazos en la arena o la tierra, pero han ido evolucionando hasta llegar a mapas digitales realmente sofisticados. La Benemérita Universidad Autónoma de Puebla cuenta con diferentes facultades, la mayoría de ellas ubicadas dentro de Ciudad universitaria (CU). En un principio, para las personas que no están familiarizadas con CU, y por primera vez buscan hallar una facultad en particular, o más aun, un edificio en concreto, tienen el problema de que al llegar, no saben hacía donde dirigirse. Al inicio de cuatrimestres, muchos estudiantes pasan por esto, no saben hacia dónde ir, e inclusive cuando saben dónde está la facultad, no saben con exactitud cuál es el edificio que buscan en particular.

Research data services (RDS) in Spanish academic libraries

Research data services (RDS) are actions undertaken to provide researchers with support, advising, training, information, a technological infrastructure and a regulatory framework with respect to research data management (RDM) throughout the life cycle of the data. The implementation of RDS is an activity that is becoming increasingly important within the functions carried out by academic and research libraries. The aim of this study is to provide a snapshot of the research data services implemented in academic libraries in public universities in Spain, identifying the number and types of services deployed. We conducted a Website Content Analysis of the libraries of the 48 Spanish public universities to discover which RDS they are implementing and promoting. The results show that, despite a lack of institutional policies regarding research data, libraries are deploying these new services, albeit unevenly in terms of both the number of services and the type of support provided. Services related to development of the data management plan (DMP) and preservation of the data in repositories predominate. This inventory is presented as a first step towards learning the level of RDS implementation in Spanish academic libraries, providing a partial perspective and leading the way to exploring other aspects in greater depth in future studies.This work has been supported by the Madrid Government (Comunidad de Madrid-Spain) under the Multiannual Agreement with UC3M in the line of Excellence of University Professors (EPUC3M02), and in the context of the V PRICIT (Regional Programme of Research and Technological Innovation)

Relaciones entre la práctica física, condición física y atención en una muestra adolescente

El propósito de este trabajo fue examinar las relaciones entre la práctica de actividad física, la condición física y la atención en un grupo de adolescentes. Participaron en el estudio 149 adolescentes de la provincia de Málaga (España), con edades entre 14 y 16 años (M = 15.05; DE = .77). Para analizar los procesos atencionales se utilizó el test d2. La condición física se evaluó a través del test de salto horizontal, el test de Course Navette y el test de velocidad 5 x 10 metros. Los análisis indicaron mayores puntuaciones en diversos parámetros del test d2 en aquellos participantes que realizaban actividad física regularmente, así como relaciones significativas entre las medidas de condición física y las pruebas de atención, siendo el consumo de oxígeno la variable más relevante. Los resultados hallados apoyan la importancia de practicar actividad física en la infancia y la adolescencia, sugiriendo que el incremento de la condición física puede tener implicaciones positiva sobre la atención en estas edades.The purpose of this study was to examine the relationship between physical activity, fitness and attention in a group of adolescents. 149 adolescents aged between 14 and 16 years old (M = 15.05; SD = .77) took part in the study. The D-2 Test was used to analyse attention processes. Physical fitness was assessed with the horizontal jump test, the Course Navette test and the 5 x 10 metre sprint test. Analyses indicated higher scores on some measures of the D-2 test in participants who regularly did sports and significant relationships between fitness tests and measurements of attention, with oxygen consumption being the most relevant variable. The results obtained support the importance of physical activity in childhood and adolescence, suggesting that increased fitness may have positive implications on attention at this age.O propósito deste trabalho foi analisar as relações entre a prática de actividade física, a condição física e a atenção num grupo de adolescentes. Participaram no estudo 149 adolescentes da província de Málaga (Espanha), com idades compreendidas entre os 14 e os 16 anos (M = 15.05; DP = .77). Para analisar os processos atencionais foi utilizado o teste d2. A condição física foi avaliada através do teste de salto horizontal, o teste de Course Navette e o teste de velocidade 5 x 10 metros. As análises indicaram pontuações mais elevadas nos diversos parâmetros do teste d2 para os participantes que realizavam actividade física regularmente, assim como relações significativas entre as medidas de condição física e as provas de atenção, sendo o consumo de oxigénio a variável mais relevante. Os resultados encontrados suportam a importância de praticar actividade física na infância e adolescência, sugerindo que o incremento da condição física pode ter implicações positivas na atenção nestas idades

FINITE ELEMENT MODELING OF TEMPERATURE FIELDS ON THE CUTTING EDGE IN THE DRY HIGH-SPEED TURNING OF AISI 1045 STEEL

High-speed turning is an advanced and emerging machining technique that, in contrast to the conventional machining, allows the manufacture of the workpiece with high accuracy, efficiency and quality, with lower production costs and with a considerable reduction in the machining times. The cutting tools used for the conventional machining cannot be employed for high-speed machining due to a high temperature induced in machining and a lower tool life. Therefore, it is necessary to study the influence of high cutting speeds on the temperature distribution in different typologies of cutting tools, with the aim of evaluating their behavior. In this paper, a finite element method modeling approach with arbitrary Lagrangian-Eulerian fully coupled thermal-stress analysis is employed. The research presents the results of different cutting tools (two coated carbide tools and uncoated cermet) effects on average surface temperature fields on the cutting edge in the dry high-speed turning of AISI 1045 steel. The numerical experiments were designed based on different cutting tools like input parameters and different temperature field zones like dependent variables in the dry high-speed turning of AISI 1045 steel. The results indicate that the dry high-speed turning of AISI 1045 steel does not influence significantly the temperature field zones when P10, P15 or P25 inserts are used. Therefore, the use of a dry high-speed turning method, which reduces the amount of lubricant and increases productivity, may represent an alternative to turning to the extent here described

PRODUÇÃO CIENTÍFICA NA ÁREA DE CIÊNCIA DO ESPORTE NO CHILE (1912-2014): UMA ABORDAGEM BIBLIOMÉTRICA

 This study conducted a bibliometric analysis of Sport Sciences’ scientific production published in Chile until 2014 in order to present its productivity and collaboration patterns. Articles and reviews’ bibliographic information, authors’ affiliation and country, decade, subject and research area were recorded and analysed. In summary, Sport Sciences production has progressively increased from the 1910s onwards, depending on the socio-historical events that happened in Chile. During the 21st century, a process of consolidation has started as a result of the amount of authors, journals, countries, research areas and subjects studied, therefore strengthening collaboration. El objetivo de este estudio fue desarrollar un análisis bibliométrico de la producción científica en Ciencias del Deporte publicada en Chile hasta 2014, para presentar su productividad y colaboración. El estudio registra y analiza la información bibliográfica, la afiliación institucional, país, década, disciplina y área de artículos y reseñas. En resumen, la producción de Ciencias del Deporte ha aumentado constantemente desde la década de 1910 en adelante, dependiendo de los acontecimientos socio-históricos en Chile. En el siglo XXI, ha comenzado un proceso de consolidación atendiendo a la cantidad de autores, revistas, países, áreas de investigación y disciplinas estudiadas y la colaboración se ha reforzado. O objetivo deste estudo foi desenvolver uma análise bibliométrica da produção científica em Ciências do Desporto publicada no Chile até 2014 para apresentar a sua produtividade e colaboração. O estudo registra e analisa a informação bibliográfica, afiliação institucional, país, década, disciplina e área de artigos e resenhas. Em suma, a produção de Ciências do Esporte tem aumentado constantemente desde a década de 1910 em diante, dependendo dos acontecimentos sócio-históricos no Chile. Durante o século XXI, começou um processo de consolidação em resposta ao número de autores, revistas, países, áreas de pesquisa e disciplinas estudadas, e a colaboração tem sido reforçada. 

Evaluation of the effect of arbuscular mycorrhizal fungi infection in three aromatic plants

The aim of this study was to evaluate the effect of the colonization of arbuscular mycorrhizal fungi in the production of secondary metabolites in Petroselinum crispum, Salvia officinalis and Dysphania ambrosioides. Three treatments were established: Control (C), commercial inoculum (CI) and native inoculum (NI). Every 15 days height, stem diameter and number of leaves were measured. The percentage of colonization was assessed by staining of roots, and identification of flavonoids through TLC thin layer chromatography, finally the concentration of total phenols was evaluated by spectrophotometry from the ethanol extracts of each plant. The results of development of biomass and the percentage of colonization show statistically significant difference for the three variables evaluated (P≤0.05) from each culture in the treatment of NI with respect to control, showing a greater effect on plants of S. officinalis (51% and 91%, respectively). Chromatography reveals the presence of flavonoids in the three plants; however this is more intense for the treatment of NI, showing increased production of total phenols in S. officinalis. Finally, the chemical characterization of the substrate shows a higher assimilation of nitrogen and phosphorus (0.11% and 0.35 mg / kg respectively) in S. officinalis associated with a native inoculum (NI).

Estudio retrospectivo sobre artroplastia total de rodilla: cirugía navegada y cirugía robótica

RESUMENEl objetivo de este estudio es comparar los resultados clínicos y radiológicos obtenidos mediante artroplastia total de rodilla navegada y artroplastia total de rodilla robótica , así como comparar el tiempo quirúrgico empleado en ambas técnicas.MATERIAL Y MÉTODOS Realizamos un estudio monocéntrico, observacional longitudinal retrospectivo de cohortes históricas en el que analizamos 48 pacientes, 24 sometidos a cirugía navegada de atroplastia de rodilla y 24 a cirugía robótica en el servicio de Cirugía Ortopédica y Traumatología del Hospital Universitario Miguel Servet. Se realizaron a cargo del mismo cirujano . Se recogieron datos de los resultados clínicos y radiográficos pre y postquirúrgicos , analizándose con el programa SPSS Stadistics 20 .RESULTADOSNo se obtuvieron diferencias estadísticamente significativas en cuanto a la comparación de los parámetros clínicos valorados (escala Knee Society Score, escala WOMAC y cuestionario de salud SF12) entre la artroplastia de rodilla robótica y la navegada. En el análisis de los resultados radiológicos observados (ángulo femorotibial mecánico, valgo fisiológico femoral, ángulo tibial proximal y pendiente tibial) tampoco se observaron diferencias estadísticamente significativas. Finalmente, tampoco existieron diferencias en el tiempo quirúrgico empleado entre ambas técnicas<br /

Bibliometric analysis of the dissertations: Physical Education degree?s case of the Universidad Autónoma de Chile

Resumen: La bibliometría es un procedimiento que debido a su aplicación para evaluar el desarrollo científico ha logrado un avance sustantivo durante estos últimos años. El objetivo de la presente investigación es describir la distribución temporal, temática y por profesor guía de las tesis de pregrado defendidas hasta el año 2012 en la carrera de Pedagogía en Educación Física de la Universidad Autónoma de Chile, junto con mostrar su utilidad para evaluar procesos formativos desarrollados en dicha carrera y su relación con los lineamientos de investigación. Para ello, se consideraron todas las tesis de pregrado defendidas en la carrera de Pedagogía en Educación Física entre los años 2007 y 2012. A través de la consulta directa de cada tesis, los datos recolectados fueron: autor/es, año, título de la tesis, sede, profesor guía y disciplina.Abstract: Bibliometrics has achieved a great relevance during the last years because its usefulness for assessing the scientific development. The aim of the present study was to describe the distribution of Physical Education degree?s dissertations presented at the Univer¬sidad Autónoma de Chile until 2012 by year, topic and teacher, as well as to show its usefulness for evaluating the degree?s academic processes and its relation with the research lineaments. In this way, all the dissertations presented in Physical Education degree from 2007 to 2012 were considered. Dissertations were personally consulted and data collected was: author/s, year, title, campus, teacher and topic