Sistemas de tuberías y fittings, de polipropileno para la conducción de agua potable en edificación

Tesis (Ingeniero Constructor)El siguiente trabajo de título tiene como objetivo dar a conocer un producto confiable capaz de transportar agua potable, soportando altas temperaturas y presiones, eliminando así filtraciones. Se desea garantizar la calidad del diseño y ejecución de un sistema de instalación de Agua Potable fría y caliente, para instalaciones interiores. Este producto se conoce como tubería de polipropileno copolímero Random (PP-R). El PP-R, es un material que se encuentra en periíodo de crecimiento en el mercado nacional. Dentro de sus aplicaciones en instalaciones de agua potable, se considera como uno de los más atractivos productos debido a su condición de competitividad económica frente al cobre, generando un aumento en el consumo de este material termoplástico. Se desarrolla un -análisis de diseño de las tuberías de PP-R y un comparativo económico frente a materiales como el cobre comúnmente usados en la ejecución de proyectos para la conducción de fluidos, proponiendo la sustitución por un material de calidad superior.The following work of title(degree) has as aim(lens) announce a reliable product capable of transporting drinkable water, supportíng high temperatures and pressures, eliminating filtrations like that. One wants to guarantee the quality of the design and execution of a system of installation of Drinkable cold and warm Water, for interior facilities. This product knows as pipeline of polipropileno copolimero random (pp-r). The pp-r is a material that one finds in period of growth on the domestic market. Inside his (her, your) applications in facilities of drinkable water, it is considered to be one of the most attractive products due to his (her, your) condition of economic competitiveness opposite to the copper, generating an increase in the consumption of this material termoplástico. There develops an analysis of design of the pipelines of pp-r and the comparative economic one opposite to materials as(like) and charge commonly used in the project execution for the conduction(driving) of f1uids, proposing the substitution for a material of top quality

Child Malnutrition, Social Development and Health Services in the Andean Region

This study analyzes social, ethnic and regional determinants of child malnutrition, as well as the effects of access to health services in the Andean Region, through a comparison between Ecuador, Peru and Bolivia. These three countries share a profile with high stunting prevalence and strong socio-economic, regional and ethnic disparities. The analysis is conducted using DHS (Peru 1992, 1996 and 2000, Bolivia 1997) and LSMS (Ecuador 1998) surveys and it focuses on an international comparative perspective. In the case of Ecuador a detailed analysis is provided. The main task was to identify the determinants of the z-score indicators for height and weight for age. For that matter, multiple equation models were estimated, applying instrumental variables and combining different multivariate procedures, to identify the relative importance of education, housing, ethnicity and contextual regional factors as determinants of stunting in each national case. In all cases we have found strong negative ethnic effects of indigenous ethnicity as well as contextual regional negative factors for highland regions. The results remain significant even after controlling for all relevant socio- economic determinants, such as education, housing and economic status, with few exceptions.nutrition,health,child,cronic,waste,stunting,Child anthropometric measures Principal component analysis

Los sitcoms como herramienta para el aprendizaje cultural en el aula de inglés

Con la llegada de la globalización y la consolidación definitiva del inglés como lengua internacional, el lugar de la cultura en el proceso de aprendizaje de esta lengua también ha cambiado. De este modo, focalizar la enseñanza en hechos culturales de países anglófonos resulta insuficiente en el mundo en el que vivimos, donde la amplia mayoría de las interacciones en inglés se producen entre hablantes no nativos. Desde un punto de vista culturalmente descentralizado (Holliday, 2009), el desarrollo de la competencia intercultural y la conciencia crítica deben constituir una parte esencial del aprendizaje de idiomas (Byram, 2014). Sin embargo, la mayoría de los libros de texto utilizados no promueven este aprendizaje (inter)cultural. En este trabajo, proponemos que la televisión sea un recurso pedagógico complementario para lograr este objetivo. Nos hemos centrado en “sitcoms” (comedias de situación) para elaborar una lista de episodios que pueden ser utilizados en el entorno de la Educación Superior para desarrollar esta competencia cultural.With the emergence of globalization and English becoming a lingua franca for international communication, the place for culture in the language learning process has shifted as well. Thus, concentrating on cultural facts about English-speaking countries is insufficient for today’s world, where the vast majority of interactions happen among non-native speakers. From a culturally decentered standpoint (Holliday, 2009), intercultural competence and critical awareness constitute an essential part of language learning (Byram, 2014). However, most ELT textbooks do not promote complete (inter) cultural learning. In this article, we argue that TV can be an additional pedagogical tool to help achieve this goal. We focus on sitcoms compiling a list of episodes that can be used at tertiary level to develop cultural competence

The stability of the roommate problem revisited

The lack of stability in some matching problems suggests that alternative solution concepts to the core might be a step towards furthering our understanding of matching market performance. We propose absorbing sets as a solution for the class of roommate problems with strict preferences. This solution, which always exists, either gives the matchings in the core or predicts other matchings when the core is empty. Furthermore, it satisfies the interesting property of outer stability. We also determine the matchings in absorbing sets and find that in the case of multiple absorbing sets a similar structure is shared by all.roommate problem, core, absorbing sets

Evaluating teaching and management innovations in an online university: the case of the Universitat Oberta de Catalunya

The Universitat Oberta de Catalunya (UOC) is an online university that has innovation as a transversal feature in all its activities and processes. Therefore, innovation is present in the annual objectives of all the academic and management departments in order to increase student satisfaction. UOC stimulates innovation by funding strategic projects as well as organizing regular internal calls for small projects which brings about innovative academic and management proposals. In this paper we present the method for evaluating teaching and management innovations through internal calls (APLICA), by selecting which initiatives are suitable to become strategic innovative projects (INNOVA) or which features should compose any application available at the OpenApps platform. Besides, general indicators used by the Innovation Program to evaluate the activities carried out are also reported

Child Malnutrition, Social Development and Health Services in the Andean Region

This paper analyzes the social, ethnic and regional determinants of child malnutrition, as well as the effects of access to health services in the Andean region, by comparing conditions in Ecuador, Peru and Bolivia. These three countries are marked by a high prevalence of stunting and by wide socioeconomic, regional and ethnic disparities. The analysis used Demographic and Health Survey (DHS) data from Peru (1992, 1996 and 2000) and Bolivia (1997), and Living Standards Measurement Study (LSMS) data for Ecuador (1998). The paper adopts an international comparative perspective, analyzing Ecuador in particular detail.