Hernández Sampieri, Roberto; Fernández Collado, Carlos; Baptista Lucio, Pilar. Metodología de la investigación, 5a ed., México: Mc Graw Hill, 2010
01 Jan 2010-Vol. 11, pp 169-172
About: The article was published on 2010-01-01 and is currently open access. It has received 569 citations till now.
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14 Feb 2020
TL;DR: In this article, a trabajo de grado pretende identificar, caracterizar, and obtener indicadores of seguridad vial en lugares de alta siniestralidad dentro del Distrito Capital.
Abstract: Evaluar cuantitativamente la seguridad vial en Colombia, como herramienta de politica publica, abre la posibilidad de un enfoque mas tecnico a la hora de tomar decisiones y ejecutar intervenciones tanto correctivas como predictivas. El presente trabajo de grado pretende identificar, caracterizar y obtener indicadores de seguridad vial en lugares de alta siniestralidad dentro del Distrito Capital. Este estudio permitira no solo identificar aquellos puntos criticos dentro de la ciudad de Bogota donde se presenta un alto grado de siniestralidad, sino tambien aquellos puntos donde la cobertura y atencion en salud es deficiente (atencion prehospitalaria post-siniestro) en un esfuerzo por proveer una vision mas clara de intervencion tanto de manera intensiva como extensiva en seguridad vial, siendo estas medidas no solo en materia de movilidad sino de salud publica. La obtencion de estos indicadores se realizara a partir del analisis estadistico de la informacion disponible de siniestros, traslados y velocidades de operacion, para la construccion de un modelo de transporte que permita identificar el area de cobertura de centros hospitalarios frente a siniestros viales de severidad media y alta. El presente estudio pretende no solo caracterizar las variables en seguridad vial en lugares criticos dentro del Distrito Capital, con diferentes niveles de severidad, tambien comprende un analisis de cobertura de salud ante siniestros viales y un analisis epidemiologico de la siniestralidad que se presenta en la ciudad de Bogota. Lo anterior, con el fin de poder identificar posibles puntos de intervencion y sus caracteristicas para la implementacion de medidas correctivas por parte de las entidades competentes en el corto y mediano plazo. Entender la siniestralidad como un problema integral que no solo se limita a la intervencion del Sector Movilidad en la ciudad, y vincular de manera articulada al Sector Salud del Distrito, podria permitir reducir el riesgo de muerte frente a siniestros de trafico en zonas de alta reincidencia y exposicion, permitiendole a la ciudad ahorrar en externalidades, como gastos adicionales en salud, perdida de productividad, perdida de capital humano, congestion, entre otras externalidad propias provenientes del Sector Movilidad.
68 citations
15 Sep 2015
TL;DR: In this article, the use of coding in Maths classes could have a positive impact on learning outcomes of students in their mathematical skills, such as modeling process and reality phenomena, reasoning, problem formulation and problem solving, and comparison and execution of procedures and algorithms.
Abstract: One of the latest trends in the educational landscape is the introduction of computer programming in the K-12 classroom to develop computational thinking in students. As computational thinking is not a skill exclusively related to computer science, it is assumed – but not yet scientifically proven – that the problem solving process may be generalized and transferred to a wide variety of problems. This paper presents a research designed to test whether the use of coding in Maths classes could have a positive impact on learning outcomes of students in their mathematical skills. Therefore, the questions we want to investigate in this paper are if the use of programming in Maths classes improves (a) modeling process and reality phenomena, (b) reasoning, (c) problem formulation and problem solving, and (d) comparison and execution of procedures and algorithms. We have therefore designed a quantitative, quasi-experimental experiment with 42 participating 6th grade (11 and 12 years old) students. Results show that there is a statistically significant increase in the understanding of mathematical processes in the experimental group, which received training in Scratch.
62 citations
01 Jan 2010
TL;DR: The conclusions were that the areas with the designation of "Front", "Chest" and "Forearm" got a medium level of contamination, while the area designated as a “Chinstrap" got the medium and high levels of contamination; with variations in the 2 groups.
Abstract: This research study, descriptive of transversal cut, was done during the month of December 2008 in a clinic, with the purpose of determinate the levels of microbiological contamination in zones of operator student’s clothing during the aerotransported dispersion of aerosols generated with the use of a high speed hand piece. This research was done with 06 students of a Stomatological School and with 09 patients, selected according as the standards. In 3 days in arrow, the filters paper discs were exposed, in areas of the student’s clothing, to the aerosols generated by using a high speed hand piece; in a simulation of cavitary preparedness in the occlusal face of the piece 1.6. These discs were taken to the microbiology laboratory for processing, yielding the highest number of accounts of UFC/cm2 in descending order were: area named "Chinstrap", "Front", "Chest", "Forearm". The conclusions were that the areas with the designation of "Front", "Chest" and "Forearm" got a medium level of contamination, while the area designated as a “Chinstrap" got the medium and high levels of contamination, with variations in the 2 groups.
54 citations
09 Jun 2018
TL;DR: In this article, a Bola de Neve Virtual metodologia is used to evaluate the performance of coleta de dados in the context of Redes Sociais Virtuais.
Abstract: Pesquisadores comecaram a vislumbrar as Redes Sociais Virtuais - RSV como meio para realizar estudos cientificos, sendo mais um canal de interacao com os usuarios da Internet. E neste contexto que este estudo pretende proporcionar maior e melhor compreensao do uso das RSV no processo de coleta de dados, consolidando estudos anteriores e fornecendo novas informacoes. Em termos metodologicos, este estudo fundamenta-se na analise da literatura e em verificacoes de estudos que utilizaram as RSV como meio para a coleta de dados, aferindo dados descritivos e exemplos que estimulam a compreensao. Ao construir um arcabouco de referencias teoricas e empiricas a respeito do metodo de coleta de dados, denominado aqui como Bola de Neve Virtual, verifica-se que, mesmo sendo uma metodologia que pode gerar quantidade amostral relevante, tais dados nao podem ser generalizados, devido sua natureza nao probabilistica.
53 citations