Relación entre los conocimientos previos en algebra y el aprendizaje significativo de matemática I, de los estudiantes del primer semestre en ingeniería civil, Universidad César Vallejo-San Juan de Lurigancho, 2015

El objetivo general de la presente investigación fue determinar que existe relación entre los conocimientos previos en algebra y el aprendizaje significativo de matemática I, de los estudiantes del primer semestre de ingeniería civil, Universidad César Vallejo-San Juan de Lurigancho, 2015. La investigación fue de tipo básica, correlacional con un enfoque cuantitativo, diseño no experimental y de corte transversal. La población fue de 58 estudiantes. La muestra fue un censo, tomándose toda la población de estudiantes del I ciclo en ingeniería civil, de la experiencia curricular de matemáticas I, en la Universidad César Vallejo-San Juan de Lurigancho, 2015. Se aplicaron dos instrumentos: para medir los conocimientos previos en algebra y el aprendizaje significativo de matemática I, que fueron validados por tres expertos conocedores del tema. Los resultados obtenidos después del procesamiento y análisis de los datos nos indican que; con respecto al objetivo general y en respuesta a la hipótesis general, se concluye que los conocimientos previos en algebra y el aprendizaje significativo de matemática I, se relacionan, en los estudiantes del primer semestre ingeniería civil, Universidad César Vallejo-San Juan de Lurigancho, 2015. Dado que el coeficiente de correlación Rho Spearman es 0.978 y el nivel de significancia de α = 0.000

Lemna Minor influence in the treatment of organic pollutionof the industrial effluents

The purpose of the research was to determine the influence of industrial wastewater treatment using the Lemna Minor aquatic plant. Certain varieties of macrophyte plants can absorb or retain various contaminants. Thanks to this, it has been determined that the variety known as Lemna Minor presents this type of property. Three treatment trials were carried out varying the amounts of Lemna Minor (100, 200, and 300g). They are keeping constant the retention time of 10 days that were analyzed at 3, 6, and 10 days after the treatment and with a constant volume of the residual effluent. The results indicate that in terms of the parameters that determine organic contamination, BOD was reduced by (61 %); COD was reduced by (68 %) and the concentration of total suspended solids by (61 %).Revisión por pares de doble ciegoCampus San Juan de Luriganch

Urban green areas to improve the quality of life in the San Juan de Miraflores district

This research seeks to propose a design of ecological green areas in the district of San Juan de Miraflores, Panamericana Sur sector. The lack of green spaces increases environmental pollution and affects the health of the residents of the neighborhood, the proposal to incorporate green areas in public spaces aims to improve the quality of life, in the methodology used to determine the location, a topographic survey of the district identifying the existing green areas, as well as evaluating the climatology, soil science, flora and fauna of the place and the urban environment for the design in such a way that it generates microclimates. It also had the support of a virtual survey directed to the residents of the area. As a final result, the design of a proposal for ecological spaces that integrate with the urban environment without losing their identity and minimizing their relationship with nature is proposed for users' interaction and comfort using clean technologies

Effect of rosiglitazone on the frequency of diabetes in patients with impaired glucose tolerance or impaired fasting glucose: a randomised controlled trial

Background Rosiglitazone is a thiazolidinedione that reduces insulin resistance and might preserve insulin secretion. The aim of this study was to assess prospectively the drugs ability to prevent type 2 diabetes in individuals at high risk of developing the condition