The research seeks to establish a comparison between the presence of green areas near educational centers in two districts of Metropolitan Lima, Breña and Pueblo Libre, due to the influence they have on human well-being; the work included field work, with institutional visits to both districts and a cabinet work where the information taken with the Garmin Etrex 20 GPS using Postgresql/Postgis software, besides Google Earth Pro program and the description obtained in the field work was processed. It was determined that Pueblo Libre has a higher percentage of total park area (and consequently, a greater amount of green area), so the relationship of parks with the number of educational entities at radii of 100, 200 and 300 m in Pueblo Free is greater; Breña has 0.33 m2 of green area per inhabitant and Pueblo Libre 2.14 m2.

This paper proposes a methodology (using Object-oriented data modeling) to use geometrical entities such as “Point” (Punto in Spanish), “Polyline” (Polilínea in Spanish) and “Polygon” (Polígono in Spanish) using an abstract way using their properties and some functions upon themselves, in order to use them in Geographic Information Systems (GIS) Programming in an easier way to represent geographical entities. The last part you can see some simple examples about performing these abstractions.

El presente artículo propone una metodología (usando el modelado de datos orientado a objetos) en la utilización de entidades geométricas tales como Punto, Polilínea y Polígono de una manera abstracta con el fin de usar sus propiedades y algunas funciones para luego ser usados en los Sistemas de Información Geográfica (GIS en sus siglas en ingles) de una manera automatizada y entendible en la programación y/o automatización de algoritmos facilitando su aplicación para la representación de entidades geográficas. Al final del presente artículo se expondrán algunos ejemplos sencillos de la implementación de cada abstracción para su mejor entendimiento.

Presenta una serie de modelos matemáticos para la generación de información para una zonificación ambiental territorial en la cuenca de la quebrada del Pedregal (distrito de Lurigancho - Chosica). Dicha información proviene de una imagen ALOS-PALSAR con una resolución espacial de 12.5 m entre cada punto. Los modelos matemáticos presentados en este trabajo de investigación son: caracterización de la pendiente, orientación, curvatura y rugosidad de la topografía; flujo de agua, cuenca visual y la caracterización de la dificultad de las vías de acuerdo a la topografía, el ancho, longitud y la superficie de la vía. Estos modelos están asistidos por una serie de funciones como la interpolación bicúbica y el regrillado de datos (redimensionamiento de la resolución espacial) de los mencionados puntos. Además, se utiliza un algoritmo que de acuerdo a los valores obtenidos por...

The objective of this work was to perform an analysis on the influence of a natural event (alluvium) of March 2015 in the Rayo de Sol ravine. To carry out the analysis in the area, cameras were used to record the damage from the basin goes down to the upper basin of the Rayo de Sol ravine; a GPS etrex Garmin; a tape measure. The technique used was direct observation in the field by walking. It was verified that the eight dispersers were completely destroyed by the alluvium, the houses on both sides of the riverbed suffered considerable damage, as well as the structure of basic services; the scarcity presence or lack of native vegetation along the area is evident due to the anthropogenic activity, and urban solid waste layers were evidenced in both channels of the stream. The ignorance of the inhabitants about the danger of the area where they decided to locate their houses as well as the...

The objective of this work was to perform an analysis on the influence of a natural event (alluvium) of March 2015 in the Rayo de Sol ravine. To carry out the analysis in the area, cameras were used to record the damage from the basin goes down to the upper basin of the Rayo de Sol ravine; a GPS etrex Garmin; a tape measure. The technique used was direct observation in the field by walking. It was verified that the eight dispersers were completely destroyed by the alluvium, the houses on both sides of the riverbed suffered considerable damage, as well as the structure of basic services; the scarcity presence or lack of native vegetation along the area is evident due to the anthropogenic activity, and urban solid waste layers were evidenced in both channels of the stream. The ignorance of the inhabitants about the danger of the area where they decided to locate their houses as well as the...

The aim of this research was to know the interaction from the cultural, economic-social and distribution of green spaces in Chilca. The research is basic, not experimental, to collect data the survey was used, which was applied in the field for 24 months. The results showed that, despite changes due to industrial development in the distribution of green spaces, the cultural vision and the socio-economic characteristics do not influence in the green spaces of the district. It was remarkable hearing from some dwellers their knowledge about zoning and how useful it would be to develop projects in the district based on it to recover and conserve their natural spaces.