Rainwater harvesting systems reduce detergent use

Unidad de excelencia María de Maeztu MdM-2015-0552Purpose: Due to population growth, urban water demand is expected to increase significantly, as well as the environmental and economic costs required to supply it. Rainwater harvesting (RWH) systems can play a key role in helping cities meet part of their water demand as an alternative to conventional water abstraction and treatment. This paper presents an environmental and economic analysis of RWH systems providing households with water for laundry purposes in a life cycle thinking perspective. Conclusions: LCA and LCC present better results for high-density scenarios. Overall, avoided environmental and economic impacts from detergent reduction clearly surpass environmental impacts (in all categories except terrestrial acidification) and economic cost of the RWHsystem in most cases (except two scenarios). Another important finding is that 80%of the savings are achieved by minimizing detergent and fabric softener by using soft rainwater; and the remaining 20% comes from replacing the use of tap water

Overview of recent TJ-II stellarator results

The main results obtained in the TJ-II stellarator in the last two years are reported. The most important topics investigated have been modelling and validation of impurity transport, validation of gyrokinetic simulations, turbulence characterisation, effect of magnetic configuration on transport, fuelling with pellet injection, fast particles and liquid metal plasma facing components. As regards impurity transport research, a number of working lines exploring several recently discovered effects have been developed: the effect of tangential drifts on stellarator neoclassical transport, the impurity flux driven by electric fields tangent to magnetic surfaces and attempts of experimental validation with Doppler reflectometry of the variation of the radial electric field on the flux surface. Concerning gyrokinetic simulations, two validation activities have been performed, the comparison with measurements of zonal flow relaxation in pellet-induced fast transients and the comparison with experimental poloidal variation of fluctuations amplitude. The impact of radial electric fields on turbulence spreading in the edge and scrape-off layer has been also experimentally characterized using a 2D Langmuir probe array. Another remarkable piece of work has been the investigation of the radial propagation of small temperature perturbations using transfer entropy. Research on the physics and modelling of plasma core fuelling with pellet and tracer-encapsulated solid-pellet injection has produced also relevant results. Neutral beam injection driven Alfvénic activity and its possible control by electron cyclotron current drive has been examined as well in TJ-II. Finally, recent results on alternative plasma facing components based on liquid metals are also presented. ISSN:0029-5515 ISSN:1741-432

Cultura de investigación para la innovación y el emprendimiento

El libro se encuentra dividido en tres ejes temáticos : el primero trata temas de Investigación aplicada con dos capítulos, el segundo eje contiene los capítulos tres al seis y aborda temas de innovación en procesos con temas de software y competitividad empresarial; el eje tres innovación en servicios y en producción, del capítulo siete al doce aborda temas tan interesantes como las realidades de la internacionalización de servicios, logística hospitalaria, modelo de diagnóstico para el desarrollo socio-económico y modelo de microcréditos.The book is divided into three thematic axes: the first deals with issues of applied research with two chapters, the second axis contains chapters three to six and addresses issues of innovation in processes with issues of software and business competitiveness; axis three innovation in services and production, from chapter seven to twelve, addresses such interesting topics as the realities of the internationalization of services, hospital logistics, a diagnostic model for socio-economic development and a microcredit model.Cómo fomentar la investigación científica y la innovación empresarial desde una unidad de emprendimiento / Carlos Andres Zamudio Delgado, Johemir Pérez Pertuz -- Cambio y variabilidad cognitiva en el desarrollo de competencias financieras en niños y niñas de 7 años / Luis Guillermo Rojas Gómez -- FINEVA: el software para el análisis financiero de la internacionalización empresarial / Guillermo Rafael Angulo Vega, Lissette Salomé Ortíz Gallardo, Johel Andrés García Vargas -- Responsabilidad social del contador público desde su proceso de formación para fortalecer la gestión contable de microempresarios en la localidad de suba upz rincón Bogotá Colombia / Nadia Ávila, Ana C. Pinzón Vargas -- Competitividad e innovación en el aprendiz SENA: perspectivas de formación / René Alexander Guerrero Vergel, Ferly Antonio Valencia Serna, Elizabeth Tuberquia Vanegas -- Diseño y desarrollo de una aplicación de escritorio para la homologación contable de módulos sap systeme anwendungen und produkte / Nelson Giovanni Agudelo Cristancho, Ángela María Montoya, Juan Carlos Amezquita Tovar -- Realidades de la internacionalización de servicios en Colombia: una revisión de literatura (1994-2017) / Campo Elías López Rodríguez, Juan Carlos Ligarreto Parra, Haroldo Enrique Puerta Cabarcas -- Logística hospitalaria: caracterización de la operación de una sala de urgencias en la ciudad de Ibagué / Julián Alonso Garzón Quiroga, Jaime Alberto Villada Garcés -- Estudio de la evolución de la huella ocular como mecanismo de seguridad para las entidades financieras / Laura Valentina García Pérez, Karen Valentina Cetina Huérfano, Ashly Valeria Mercado Rojas, Ana C Pinzón Vargas -- Cómo vincular la información que brinda la contabilidad de gestión ambiental con los proyectos de emprendimiento / Daniel Isaac Roque -- Modelo diagnóstico para el desarrollo socio- productivo de la chamba en la post cosecha / Marina Casallas Silva, Jimmy Daniel Gamba Casallas, Wilson Ferney Molano -- Modelo de microcréditos para el sistema financiero / José Gerardo Vaca Lombanana232 página

4to. Congreso Internacional de Ciencia, Tecnología e Innovación para la Sociedad. Memoria académica

Este volumen acoge la memoria académica de la Cuarta edición del Congreso Internacional de Ciencia, Tecnología e Innovación para la Sociedad, CITIS 2017, desarrollado entre el 29 de noviembre y el 1 de diciembre de 2017 y organizado por la Universidad Politécnica Salesiana (UPS) en su sede de Guayaquil. El Congreso ofreció un espacio para la presentación, difusión e intercambio de importantes investigaciones nacionales e internacionales ante la comunidad universitaria que se dio cita en el encuentro. El uso de herramientas tecnológicas para la gestión de los trabajos de investigación como la plataforma Open Conference Systems y la web de presentación del Congreso http://citis.blog.ups.edu.ec/, hicieron de CITIS 2017 un verdadero referente entre los congresos que se desarrollaron en el país. La preocupación de nuestra Universidad, de presentar espacios que ayuden a generar nuevos y mejores cambios en la dimensión humana y social de nuestro entorno, hace que se persiga en cada edición del evento la presentación de trabajos con calidad creciente en cuanto a su producción científica. Quienes estuvimos al frente de la organización, dejamos plasmado en estas memorias académicas el intenso y prolífico trabajo de los días de realización del Congreso Internacional de Ciencia, Tecnología e Innovación para la Sociedad al alcance de todos y todas

Characteristics of the Built Environment Associated With Leisure-Time Physical Activity Among Adults in Bogotá, Colombia: A Multilevel Study

Background: Even though there is increasing evidence that the built environment (BE) has an influence on leisure-time physical activity (LTPA), little is known about this relationship in developing countries. The objective of this study was to assess the associations between objective built environment characteristics and LTPA. Methods: A cross-sectional multilevel study was conducted in 27 neighborhoods in which 1315 adults aged 18-65 years were surveyed. An adapted version of the IPAQ (long version) was used to assess LTPA. Objective BE characteristics were obtained using Geographic Information Systems. Associations were assessed using multilevel polytomous logistic regression. Results: Compared with inactive people, those who resided in neighborhoods with the highest tertile dedicated to parks (7.4% to 25.2%) were more likely to be regularly active (POR = 2.05, 95% CI = 1.13-3.72; P = 0.021). Those who resided in neighborhoods with presence of TransMilenio stations (mass public transportation system) were more likely to be irregularly active (POR = 1.27, 95% CI = 1.07-1.50, P = 0.009) as compared with inactive people. Conclusions: These findings showed that park density and availability of TransMilenio stations at neighborhood level are positively associated with LTPA. Public health efforts to address physical inactivity should consider the potential influences of urban planning and mass public transportation systems on health

Viabilidade técnica de implantação de sistema de aproveitamento de água pluvial para fins não potáveis em universidade

Este artigo tem como objetivo analisar a viabilidade técnica de implantação de sistema de aproveitamento de águas pluviais para fins não potáveis em uma edificação com salas de aula e anfiteatros na Universidade Federal de Uberlândia, no município de Uberlândia. Dois tipos de análise foram realizadas: sob o ponto de vista quantitativo, verificando se a quantidade de água pluvial coletada supre satisfatoriamente a demanda por água não potável; e sob o ponto de vista qualitativo, verificando se, após o descarte dos primeiros milímetros de precipitação, a água pluvial coletada possui qualidade suficiente para atender a essa demanda. Os resultados indicam que a implantação desse sistema é viável do ponto de vista quantitativo, pois, durante a simulação pelo Método Netuno, obtiveram-se volumes do reservatório de acumulação com intervalo de 7,9 m3 a 18,2 m3 para um potencial de economia de água potável entre 18,2% e 53,2%. Além disso, os resultados qualitativos indicam que a implantação desse sistema é viável, pois, descartando-se os primeiros 2,5 mm de precipitação após o período de estiagem e implantando-se um sistema de retenção de sólidos suspensos mais eficiente, todos os parâmetros analisados durante a pesquisa atendem às normas NBR 15527 (ABNT, 2007), NBR 13969 (ABNT, 1997) e Manual de Conservação e Reuso da Água (AGÊNCIA..., 2005)