Design of Electric Racing Vehicles: An experience of interdisciplinary project-based education in engineering

This paper describes a project based learning program carried out in the E.T.S.I.I. of the University of Malaga, Spain, whose main objective is the organization of a team for the development of experimental electric racing vehicles and their evaluation in competitive races. It is shown the work done during the first two years of the project, highlighting the most important aspects of the experience: the training focused on senior students (capstone courses), the training focused on freshmen (cornerstone courses) and the university-industry collaboration for the manufacture of the prototypes and equipment designed.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Estudio de Productividad en Obras Ejecutadas por Administración Directa en el Gobierno Regional de Arequipa 2016-2017

El presente estudio de investigación, trata sobre la productividad en nuestro país de los procesos constructivos, específicamente en las obras ejecutadas por Ejecución Presupuestaria Directa en el Gobierno Regional de Arequipa en los años 2016 – 2017. El objetivo principal de esta tesis es determinar el nivel de productividad en la ejecución de los trabajos en la parte de estructuras en el Gobierno Regional de Arequipa, tomando como referencia sus obras típicas ejecutadas. El presente trabajo se desarrolla aplicando el método de Muestreo de Actividades como un método de medición del nivel de actividad de una obra. Se realiza una determinación de la forma en que el tiempo de trabajo está siendo utilizado por el personal, midiendo el porcentaje de tiempo que la mano de obra ocupa en ciertas categorías predeterminadas de actividades, proponiendo acciones de mejora que permitan lograr una mayor productividad. Los resultados obtenidos en el presente trabajo nos muestran que se deben mejorar los índices de productividad en las obras ejecutadas por el Gobierno Regional de Arequipa.Tesi

Estudio sobre inversión empresarial en redes sociales y mejora en indicadores de gestión

Este estudio desea tener un mejor entendimiento sobre la relación que existe entre la inversión digital y los indicadores de gestión organizacional, para ello se busca comparar estrategias digitales con empresas del mismo sector en la ciudad de Bogotá y medir no solo el impacto económico que dicha inversión ha tenido sobre la empresas sino también el tipo de monitoreo que se le ha hecho a este proceso.Problema de Investigación. Pregunta. Hipótesis. Objetivo general. Objetivos específicos. Estado del arte. Metodología. ¿Qué es un embudo de conversión? ¿Cómo se van a medir los indicadores? Resultados Esperados. Desarrollo de la metodología. Desarrollo de la metodología. Análisis de los Resultados. Encuesta. Indicadores de Gestión. Benchmarking.Administrador de EmpresasPregrad

Aerobic Energy Expenditure and Intensity Prediction During a Specific Circuit Weight Training: a Pilot Study

During circuit weight training (CWT), workloads, index of intensity as well as estimation of energy expenditure (EE) have been under estimated. The aim of this study was to describe and evaluate physiological variables and gender related differences, including intensity prediction and EE, during CWT at different intensities. Twenty six subjects were assessed in a CWT, fourteen men and twelve women. The CWT program was performed at six different intensities, 40%, 50%, 60%, 70%, 80% and 85% of 15RM. Seven exercises made up the circuit: sitting bench press, leg press, lat pull down, shoulder press, hamstring curl, biceps curl, and triceps cable push downs. A polar heart rate monitor and a portable metabolic system were used to measure heart rate (HR), intensity measured relative to the HR reserve, cardiorespiratory variables, EE and EE relative to muscle mass (EEMM). Differences between genders were observed at the following variables: HR, intensity measured relative to the HR reserve (in percentage), VO2, VCO2, VE, RER, aerobic EE and EEMM. The EE was significantly higher in men during the six intensities, but differences did not exist for EEMM from 70% to 85%. In addition HR, load and body weight were used to predict intensity and two gender specific equations were obtained for men and women [I (%) = 57.265 + 0.512HR - 0.696HRmax + 1.035 Loadavg + 0.188 Body Weight (R2=0.92; SEE=4.9%) for men; I (%) = 4.036 + 0.412HR% + 1.667 Loadavg (R2=0.79; SEE=7.7%) for women]. Thus, we conclude that gender related differences are present during CWT for EE, even when expressed relative to muscle mass, in addition HR, work load and body weight can estimate the intensity during CWT

Discriminant analysis of the specialty of elite cyclist

The different demands of competition coupled with the morphological and physiological characteristics of cyclists have led to the appearance of cycling specialities. The aims of this study were to determine the differences in the anthropometric and physiological features in road cyclists with different specialities, and to develop a multivariate model to classify these specialities and predict which speciality may be appropriate to a given cyclist. Twenty male, elite amateur cyclists were classified by their trainers as either flat terrain riders, hill climbers, or all-terrain riders. Anthropometric and cardiorespiratory studies were then undertaken. The results were analysed by MANOVA and two discriminant tests. Most differences between the speciality groups were of an anthropometric nature. The only cardiorespiratory variable that differed significantly (p < 0.05) was maximum oxygen consumption with respect to body weight (VO2max/kg). The first discriminant test classified 100% of the cyclists within their true speciality; the second, which took into account only anthropometric variables, correctly classified 75%. The first discriminant model allows the likely speciality of still non-elite cyclists to be predicted from a small number of variables, and may therefore help in their specific training

Cambios y adaptación: el resistir de los bancos

El presente trabajo pretende hacer una descripción y un análisis sobre el panorama general de la supervisión bancaria europea en los últimos años. El objetivo principal consiste en explicar las diferentes normativas y recomendaciones que han estado y están vigentes en Europa a lo largo de las últimas décadas, haciendo mayor hincapié en los años más recientes, de forma que se explican los acontecimientos y las necesidades que han surgido para terminar implantando dichas herramientas, haciendo un análisis descriptivo cronológico de cómo se han ido transformando con el paso de los años en función de la evolución de las economías y factores tanto internos como externos, añadiendo las correspondientes críticas recibidas por diversos autores de cada una de ellas

Tourist behaviour and dynamics of domestic tourism in times of COVID-19

The purpose of this study was to determine the changes and consequences in travel plans due to Covid-19 and characterize the behaviour of domestic tourism in Costa Rica after the confinement through an online survey. The respondents expressed their intention to travel in the first six months, mostly two nights, and accompanied by their family members. Factors related to safety and security appear as key drivers affecting travel decisions. Protected areas and nature-based tourism are the preferred destinations to visit after the lockdown with a clear concentration in the most visited protected areas of Costa Rica

Responses to increasing exercise upon reaching the anaerobic threshold, and their control by the central nervous system

Sistema nervioso y ejercici

Longitudinal Changes in Response to a Cycle-Run Field Test of Young Male National "Talent identification" and Senior Elite Triathlon Squads.

This study investigated the changes in cardiorespiratory response and running performance of 9 male ?Talent Identification? (TID) and 6 male Senior Elite (SE) Spanish National Squad triathletes during a specific cycle-run test. The TID and SE triathletes (initial age 15.2±0.7 vs. 23.8±5.6 years, p=0.03; tests through the competitive period and the preparatory period, respectively, of two consecutive seasons: Test 1 was an incremental cycle test to determine the ventilatory threshold (Thvent); Test 2 (C-R) was 30 min constant load cycling at the Thvent power output followed by a 3-km time trial run; and Test 3 (R) was an isolated 3-km time trial control run, in randomized counterbalanced order. In both seasons the time required to complete the C-R 3-km run was greater than for R in TID (11:09±00:24 vs. 10:45±00:16 min:ss, pmenor que 0.01; and 10:24±00:22 vs. 10:04±00:14, p=0.006, for season 2005/06 and 2006/07, respectively) and SE (10:15±00:19 vs. 09:45±00:30, pmenor que 0.001 and 09:51±00:26 vs. 09:46±00:06, p= 0.02 for season 2005/06 and 2006/07, respectively). Compared to the first season, completion of the time trial run was faster in the second season (6.6%, pmenor que 0.01 and 6.4%, pmenor que 0.01, for C-R and R test, respectively) only in TID. Changes in post-cycling run performance were accompanied by changes in pacing strategy but only slight or non-significant changes in the cardiorespiratory response. Thus, the negative effect of cycling on performance may persist, independently of the period, over two consecutive seasons in TID and SE triathletes; however A improvements over time suggests that monitoring running pacing strategy after cycling may be a useful tool to control performance and training adaptations in TID. O2max 77.0±5.6 vs. 77.8±3.6 mL·kg-1·min-1, NS) underwent three TE D EP C

Validation of a new portable metabolic system during an incremental running test

We tested a new portable metabolic system, the Jaeger Oxycon Mobile (OM) at a range of running speeds. Six subjects carried out, in random order, two incremental tests on a treadmill, one of them using the OM, and the other using the Jaeger Oxycon Pro (OP). There are systematic errors in the measurements of oxygen consumption (VO2) and respiratory exchange ratio (RER) with the OM. Production of CO2 (VCO2) tends to be overestimated by the OM, although the differences are not significant. Ventilation (VE) showed very similar values in both analyzers. Data of VO2 and RER were corrected with a regression equation which minimised the differences among the devices. The portable metabolic system OM makes systematic errors in measurements of VO2 and RER which can be adjusted with a regression analysis to obtain data comparable to those obtained by fixed system