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Imagen de apoyo de  Worksheets based on vocabulary learning strategies to enhance students’ writing

Worksheets based on vocabulary learning strategies to enhance students’ writing

Por: Julie Alexandra Páez Grosso | Fecha: 01/01/2018

This study showed how worksheets based on vocabulary learning strategies contributed to the development of fourth grade students’ writing. This study was conducted in a public, rural school with fifteen students in Cajicá, Colombia. The data gathering instruments were field notes, students’ artifacts and tests. The study followed the qualitative approach and was developed under the action research methodology. The findings indicated that the design of worksheets based on vocabulary strategies made students feel motivated not only to learn new words, but also to understand the strategies that allowed them to start the process of writing. Moreover, the writing strategies were a successful approach for students because they learned how to write simple sentences. Also, using the models provided they could write simple paragraphs. Finally, all of these activities allowed students to improve their performance. This study helped learners feel motivated to learn faster and encouraged them to understand the importance of the use of vocabulary, to learn new strategies and to value meaningful writing feedback.
Fuente: Universidad Externado de Colombia Tipo de contenido: Otros
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Worksheets based on vocabulary learning strategies to enhance students’ writing

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Imagen de apoyo de  Worksheets based on deep cultural issues for reading comprehension in eleventh graders

Worksheets based on deep cultural issues for reading comprehension in eleventh graders

Por: Edwin Armando Trujillo Amaya | Fecha: 01/01/2018

Este proyecto de investigación describe el desarrollo e implementación de seis guías, basadas en problemas culturales profundos para mejorar el proceso de comprensión lectora en estudiantes de grado once. Debido a su naturaleza, la investigación acción fue el enfoque que cubrió este estudio, la cual se llevó a cabo en la institución educativa distrital colegio Técnico Domingo Faustino Sarmiento, en Rionegro, Bogotá, Colombia. Este estudio involucró doce estudiantes de grado once, jornada tarde. Progresivamente, se utilizó el enfoque basado en la teoría fundamentada en datos para analizar la información recolectada a través de tres instrumentos: trabajo de los estudiantes (guías), notas de campo y una encuesta al final del proceso. Como resultado, obtuve que materiales innovativos con actividades estimulantes, presentación atractiva, contenido interesante y una apropiada metodología, que para este estudio fue CLIL; son recursos efectivos para mejorar no sólo la habilidad de lectura, sino también las habilidades de escritura y oralidad. En relación con los problemas culturales, es importante mencionar cuan relevantes estos fueron para los estudiantes, quienes inconscientemente desarrollaron procesos de pensamiento crítico, conciencia cultural y resolución de problemas. Finalmente, el uso del conocimiento previo y varias estrategias de lectura fueron precisas para lograr la comprensión de textos.
Fuente: Universidad Externado de Colombia Tipo de contenido: Otros
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Worksheets based on deep cultural issues for reading comprehension in eleventh graders

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Imagen de apoyo de  Wire sizing, repeater insertion and dominant time constant optimizationfor a bus line 2004 = Tamaño de cable, inserción de repetidores y optimización del tiempo dominante constante para una línea digital de un bus

Wire sizing, repeater insertion and dominant time constant optimizationfor a bus line 2004 = Tamaño de cable, inserción de repetidores y optimización del tiempo dominante constante para una línea digital de un bus

Por: David Leonardo Moreno Bedoya | Fecha: 01/01/2004

Due to the continue trend of technology for circuit scaling; optimal sizes for transistors and cables are needed, this scaling comes along with power increase and undesired cross talk effects between the wires which might affect the signal itself. A trade-off curve between power, area and delay is required so that a tuned solution for a specific problem might be found. Here, an approach based on the dominant time constant optimization technique for modelling of the delay is investigated for an initial square topology with uniform wire and repeater sizing based on convex optimization and Linear Matrix Inequalities. Results with optimal buffer insertion across the bus are also investigated. 
Fuente: Biblioteca Virtual Banco de la República Tipo de contenido: Tesis
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Wire sizing, repeater insertion and dominant time constant optimizationfor a bus line 2004 = Tamaño de cable, inserción de repetidores y optimización del tiempo dominante constante para una línea digital de un bus

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Imagen de apoyo de  Window aggregate sharing for out-of-order stream processing

Window aggregate sharing for out-of-order stream processing

Por: Alejandro Rodríguez Cuéllar | Fecha: 01/01/2016

This thesis proposes a novel window aggregate sharing approach for out-of-order stream processing. We combined together the best of two worlds: the Google dataflow model for out-of-order stream processing and the Cutty aggregate sharing strategy. To our knowledge, our solution is the only aggregate sharing strategy for out-of-order stream processing that supports sliding, tumbling and session windows.Based on the experiments with the real world dataset DEBS12 [28] and a 3% out-of-order level, our solution has 1.24 higher throughput than the current implementation in Flink. Moreover, we show that the throughput of our solution becomes higher, as the out-of-order level increases.
Fuente: Biblioteca Virtual Banco de la República Tipo de contenido: Tesis
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Window aggregate sharing for out-of-order stream processing

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Imagen de apoyo de  Will Peace Destroy the Colombian Amazon? Territories, ‘Post-conflict’ and Deforestation = La Paz Destruirá la Amazonía Colombiana? Territorios, ‘Post-conflicto’ y Deforestación

Will Peace Destroy the Colombian Amazon? Territories, ‘Post-conflict’ and Deforestation = La Paz Destruirá la Amazonía Colombiana? Territorios, ‘Post-conflicto’ y Deforestación

Por: Luis Carlos Cote Rojas | Fecha: 05/09/2017

The great paradox of the current post-agreement transition might be its implications for the country's environment. The success or failure of addressing environmental considerations during the Agreement implementation could lead either to peacebuilding opportunities based on sustainable development, or to the country’s natural heritage destruction. The research argues that the Amazon natural heritage would be destroyed unless significant environmental considerations are merged with the established socio-economic priorities during the post-agreement. Attaining sustainable territorial development based on robust communities’ engagement, stable state presence and a better land management model is pressing. Although the peacebuilding path, as well as the sustainable territorial development, requires incremental structural changes at a national level, it is suggested that the Development Programmes with a Territorial-Based Approach (PDETs), as mechanisms of the Final Agreement’s implementation, could lead to a potential environmental peace in some of the Amazon’s prioritized municipalities. The overall aim of the research is to enhance the understanding of the relationship between the Colombian territories, post-agreement and deforestation, in order to determine to what extent the Colombian Amazon forest coverage could change during the post-agreement period. In doing so, the research establishes exploratory trends of the deforestation and armed conflict relationship, describes the main characteristics of the post-agreement environmental paradox and explores the case of the PDETs.
Fuente: Biblioteca Virtual Banco de la República Tipo de contenido: Tesis
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Will Peace Destroy the Colombian Amazon? Territories, ‘Post-conflict’ and Deforestation = La Paz Destruirá la Amazonía Colombiana? Territorios, ‘Post-conflicto’ y Deforestación

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Imagen de apoyo de  When titles do not become loans: property rights and slums upgrading in Bogota, Colombia

When titles do not become loans: property rights and slums upgrading in Bogota, Colombia

Por: Alexander Niño Ruiz | Fecha: 01/01/2006

Contrary to the conventional orthodoxy of the World Bank, lack of formalized or secured property rights is not the main reason why titles do not become loans in Colombia. My research shows that the institutional barriers that prevent poor people from leveraging their assets are rooted in the Colombian constitution, and in the lack of private financial institutions willing to lend to the poor. Low and middle income populations cannot use their houses as collateral to obtain loans aimed to finance business because the Colombian constitution mandates families to secure a share of their assets as Family Wealth. As a result, families have to protect their estate from being impounded by lenders. When the law allows the use of the house as collateral— for financing the purchase, improvement or enlargement of housing — there are few formal financial institutions lending to the poor. Despite of the importance of this for land-titling programs, it passed unnoticed by the World Bank, who approved a US$100 million loan for the Bogotá Urban Service Project in 2003. This thesis reveals the assumptions made by the Bank regarding the importance of property formalization as a mechanism to create massive equity out of the improved real estate in the informal sector. It contrasts the Bank’s assumptions with the actual process of upgrading in Bogotá. Leveraging poor people’s assets would be critical to the well-functioning of upgrading program, but these policies should rely on a mechanism other than the willingness of formal institutions to lend to the poor.
Fuente: Biblioteca Virtual Banco de la República Tipo de contenido: Tesis
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  • Ciencias sociales

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When titles do not become loans: property rights and slums upgrading in Bogota, Colombia

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Imagen de apoyo de  When Memories become Duty:The Memory House Museum in Medellín and The Space of Memory and Human Rights in Buenos Aires /Transformando las memorias en Deber: ElMuseo de laMemoria en Medellín y el Espacio Memoria y Derechos Humanos en Buenos Aires

When Memories become Duty:The Memory House Museum in Medellín and The Space of Memory and Human Rights in Buenos Aires /Transformando las memorias en Deber: ElMuseo de laMemoria en Medellín y el Espacio Memoria y Derechos Humanos en Buenos Aires

Por: Valeria Posada Villada | Fecha: 01/01/2018

In Latin America, Duty of Memory, or Deber de memoria, forms part of Transitional Justice measures that strive to symbolically address mass historical violations through the public recognition of victims and the incorporation of their stories of pain, exclusion, and repression into their national narratives. Within this context, Argentina and Colombia are two examples of the complexities inherent in attempting to restore the social networks. Scarred by a past military dictatorship (1976-1983) and a continuing internal armed conflict (1946-), both nations have applied Transitional Justice Systems and Duty of Memory as state policy. However, even when the two countries share the same framework, the political dynamics of each country and the ways their civil societies conceive of justice, vary considerably. Argentina is closer to a Retributive Justice model in which individual criminal accountability for the past is prioritized of over other forms of symbolic reparation. Colombia frames its past and present through Restorative Justice, defining violations as collective wrongdoings and basing reparation on dialogue, negotiation, and restoration of the bonds of trust. These two distinct viewpoints can be contrasted through the analysis of the material aspect of Duty of Memory, that is, the Memorial Museums and Trauma Sites that have emerged as spaces of reflection and commemoration in both countries. This study takes one memorial museum and one trauma site as embodiments of two outlooks on Duty of Memory. The memorial museum is the Museum House of Memory in Medellín, Colombia. The Trauma Site chosen is the Space of Memory and Human Rights of Argentina located in the Navy-Petty Officers School of Mechanics (ESMA), one of Buenos Aires’ former Secret Detention Centers. The goal of this thesis is to explore how the architectural, spatial, aesthetic, and educational practices of these two sites are influenced by the state obligations required by Duty of Memory but also establish a two-way relationship with this framework, defining its content.En América Latina, Deber de Memoria es un concepto incluido dentro del esquema de Justicia Transicional que aborda violaciones históricas a los derechos humanos a partir del reconocimiento de las víctimas y la incorporación de sus historias de dolor, exclusión y represión en la narrativa nacional. En este contexto particular, Argentina y Colombia resaltan como dos naciones que han ratificado el sistema de Justicia Transicional y Deber de Memoria como política estatal en las últimas décadas. Esto se ha hecho con miras a restaurar el tejido social afectado por una dictadura militar (1976-1983) y un conflicto armado interno (1946-). Sin embargo, aun cuando existe un marco compartido, las dinámicas políticas y la manera en que la sociedad civil concibe la justicia y la reparación, varían considerablemente. Argentina se acerca más a un modelo de Justicia Retributiva en donde la justicia penal individual por las violaciones prevalece sobre otras formas de reparación simbólica. En contraste, Colombia enmarca su pasado, y presente, a través de la Justicia Restaurativa. Esto significa que el Estado define las violaciones como una infracción colectiva, buscando reparar mediante el restablecimiento de los vínculos de confianza, la negociación y el diálogo. La diferencia de estos dos acercamientos se hace tangible en el análisis del aspecto material del Deber de Memoria. Es decir, en los museos memoriales y los sitios de trauma que han surgido como espacios de conmemoración y reflexión en ambas naciones. La siguiente investigación toma un museo memorial, el Museo Casa de la Memoria de Medellín, y un sitio de trauma, el Espacio Memoria y Derechos Humanos de Buenos Aires, como puntos de partida para observar las diferencias entre los dos modelos. Esto se hace a partir de un análisis textual y visual de las prácticas arquitectónicas, espaciales, estéticas y educativas de dichos lugares. Los dos ejemplos demuestran que los museos memoriales y sitios de trauma no sólo responden a las obligaciones estatales del Deber de Memoria sino, estableciendo una relación recíproca con este modelo, definen también su contenido.
Fuente: Biblioteca Virtual Banco de la República Tipo de contenido: Tesis
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When Memories become Duty:The Memory House Museum in Medellín and The Space of Memory and Human Rights in Buenos Aires /Transformando las memorias en Deber: ElMuseo de laMemoria en Medellín y el Espacio Memoria y Derechos Humanos en Buenos Aires

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Imagen de apoyo de  What drives indigenous corporations in the developing world to engage in CSR as a management strategy? Case study of the sugarcane and ethanol industry in the Cauca Valley, Colombia

What drives indigenous corporations in the developing world to engage in CSR as a management strategy? Case study of the sugarcane and ethanol industry in the Cauca Valley, Colombia

Por: Isabella Mariño Rivera | Fecha: 01/01/2010

Today, firms are essential to the development and protection of Human Rights, and are expected to act as necessary partners to governments and international organizations in their promotion and respect. Nevertheless, corporations are not legally compelled to act under guidelines of the United Nations (UN) HR framework. This in turn, alongside globalization, has created a governance gap in enabling a permissive environment for wrongful acts by companies without proper sanctioning or reparation.The main objectives of the Business and HR predicament lie in tackling these deficiencies in the global order. Although CSR policies are supposedly adopted in a voluntary manner, the reality is private businesses are in the centre of a “System of CSR Promotion and Advocacy”, determined by a number of drivers, pressures and incentives, shaped by diverse sources and actors.Hence, the business case for CSR differs between developed countries and emerging economies. The drivers of CSR engagement are one of the key elements that differentiate emerging economies from the developing world. Given that literature on business and HR has focused mostly on finding ways to strengthen regulatory schemes in the developed world, this research aims to shed light on why indigenous third world country corporations uptake CSR policies in a voluntary manner.
Fuente: Biblioteca Virtual Banco de la República Tipo de contenido: Tesis
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What drives indigenous corporations in the developing world to engage in CSR as a management strategy? Case study of the sugarcane and ethanol industry in the Cauca Valley, Colombia

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Imagen de apoyo de  WaveNET efficiency improvement (hexagonal array wave energy converter system) = Optimizacion de la eficiencia de sistema WaveNET (sistema convertidor de energía mareomotriz de arreglo hexagonal)

WaveNET efficiency improvement (hexagonal array wave energy converter system) = Optimizacion de la eficiencia de sistema WaveNET (sistema convertidor de energía mareomotriz de arreglo hexagonal)

Por: Héctor Fabián Reyes Parada | Fecha: 01/01/2013

The following report describes the work done during my internship in AlbaTERN Ltd, a company focused in the design and construction of wave energy devices that capture energy from ocean waves and convert it into sustainable low- carbon electricity. A background of existing research in the area of Wave Energy conversion and its potential around the world is given in the first chapters. The main objective of my thesis has been support the design and construction of a unique wave energy conversion system constructed from multiple SQUID modules in a hexagonal array configuration.The project has been focused to look specifically at improving the hydraulic energy conversion efficiency, the feasibility of auto-setting operational variables according to the sea conditions, and the overall adaptability of the design to suit the specifications of the site and power requirements. Simulations using SimHydraulics have been developed to assess the design an optimal Hydraulic energy conversion system. With the output of the several simulations and hydraulic laboratory tests have been possible the sizing of its different components, and the design of special manifold blocks with self-setting hydraulic control, reducing the quantity and complexity the electronic devices for the general control.The key challenge facing the Wave Energy conversion Industry is lowering the cost of energy generation, where is required research and Development in order to design a device with high efficiency, high availability and low cost for the mass production. So achieving a viable wave energy future depends as much upon developing a technology that can be rapidly and economically scaled to high volume production. This project provides a solid foundation for scaling WaveNET arrays in excess of 10 MW.
Fuente: Biblioteca Virtual Banco de la República Tipo de contenido: Tesis
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WaveNET efficiency improvement (hexagonal array wave energy converter system) = Optimizacion de la eficiencia de sistema WaveNET (sistema convertidor de energía mareomotriz de arreglo hexagonal)

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Imagen de apoyo de  Vulnerabilidade Social e ocorrência de doenças gastrointestinais associadas com inundações no Município de São Paulo / Vulnerabilidad social y la ocurrencia de enfermedades gastrointestinales asociadas a inundaciones en el municipio de Sao Paulo

Vulnerabilidade Social e ocorrência de doenças gastrointestinais associadas com inundações no Município de São Paulo / Vulnerabilidad social y la ocurrencia de enfermedades gastrointestinales asociadas a inundaciones en el municipio de Sao Paulo

Por: Doris Jimena Roncancio Benitez | Fecha: 01/01/2015

As inundações podem ter um grande impacto na saúde das populações. Doenças produzidas pela exposição direta ou indireta às águas, podem resultar em surtos de doenças gastrointestinais, infecções respiratórias, leptospirose entre outras. Já que os cenários de mudança climática predizem o aumento na frequência e severidade das inundações devido ao aquecimento global, é necessário ter claridade nos impactos gerados sobre a saúde humana como reflexo dos efeitos combinados das mudanças climáticas sobre os ecossistemas, o sistema econômico e o sistema social. A pesquisa visa analisar a vulnerabilidade da população do município de São Paulo às doenças infecciosas relacionadas com inundações. O processo tem como fio condutor o modelo de avaliação da vulnerabilidade conhecido como modelo de vulnerabilidade expandida. Dez variáveis consideradas como representativas para o município de São Paulo, foram escolhidas para a análise da vulnerabilidade social, correlacionadas e analisadas dentro da unidade espacial bacia hidrográfica para o ano 2010, mediante a análise de componentes principais. Bases de dados de precipitação da Rede Telemétrica de Pluviômetros de Superfície do Departamento de Águas e Energia Elétrica (DAAE), foram os dados usados para a avaliação dos níveis de precipitação. Adicionalmente, as estatísticas das bases de dados de Autorização de Internação Hospitalar do Sistema Universal de Saúde (AIH/SUS) foram usadas para a avaliação das variáveis epidemiológicas. Os resultados mostram que a vulnerabilidade social aumenta na direção centro-periferia e que as aglomerações de valores altos, evidentemente mais abundantes do que as aglomerações de valores baixos, aparecem nas bacias de vulnerabilidades sociais significativamente altas. Las inundaciones pueden tener un gran impacto sobre la salud de las poblaciones humanas. Las enfermedades producidas por la exposición directa o indirecta a agua contaminada, puede resultar en brotes de enfermedades gastrointestinales, infecciones respiratorias y Leptospirosis entre otras. Debido a que los escenarios de cambio climático predicen el aumento en la frecuencia y severidad de las inundaciones resultado del calentamiento global, es necesario tener claridad de los impactos generados sobre la salud humana que reflejan los efectos combinados de estos cambios ambientales sobre los ecosistemas, el sistema económico y el sistema social. Esta investigación tuvo como objetivo analizar la vulnerabilidad de la población del municipio de Sao Paulo a enfermedades infecciosas relacionadas con inundaciones. El proceso tuvo como hilo conductor el modelo de evaluación de la vulnerabilidad conocido como modelo de vulnerabilidad expandida. Diez variables consideradas como representativas para el municipio, fueron escogidas para el análisis de la vulnerabilidad social por cuenca hidrográfica para el año 2010. El análisis final de la vulnerabilidad consistió en la correlación y análisis de componentes principales. Fueron utilizados datos de la red telemétrica de pluviómetros de superficie del departamento de aguas y energía eléctrica (DAAE), para analizar los niveles de precipitación. Adicionalmente, las estadísticas de las bases de datos de Autorizaciones de Hospitalización del Sistema Universal de Salud (AIH/SUS) fueron usadas para la evaluación de las variables epidemiológicas. Los resultados muestran que la vulnerabilidad social dentro del municipio aumenta en la dirección centro-periferia y que las aglomeraciones de valores altos, evidentemente más abundantes que las aglomeraciones de valores bajos, aparecen en las cuencas hidrográficas con vulnerabilidades sociales altamente significativas.
Fuente: Biblioteca Virtual Banco de la República Tipo de contenido: Tesis
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  • Medicina

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Vulnerabilidade Social e ocorrência de doenças gastrointestinais associadas com inundações no Município de São Paulo / Vulnerabilidad social y la ocurrencia de enfermedades gastrointestinales asociadas a inundaciones en el municipio de Sao Paulo

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