The atmosphere is a major element in the preservation of the quality of life we want. The population growth is one of the main factors that influence air pollution, for what is considered necessary to analyze the relationship of pollution and its effects on the population. The effect of these parameters on pollution and population health has been studied as a cause and effect so that using a computer simulation program; we can study their behavior in the future. In this way we would be in the potential for reducing air pollution, or at least prevent its increase, by control of these parameters.

This article addresses the issue of Material Requirements Planning (MRP) and its importance as an administrative system planning and management of the materials required for the production processes of a company. The objective of this research is to present proper procedures and recommendations for the implementation of MRP in SMEs through simplified explanations for successful implementation. Finally, the benefits obtained in a particular case and conclude that the MRP, when properly used are presented, provides a solution for SMEs in areas such as minimizing inventory costs and supply at the required time.

The atmosphere is a major element in the preservation of the quality of life we want. The population growth is one of the main factors that influence air pollution, for what is considered necessary to analyze the relationship of pollution and its effects on the population. The effect of these parameters on pollution and population health has been studied as a cause and effect so that using a computer simulation program; we can study their behavior in the future. In this way we would be in the potential for reducing air pollution, or at least prevent its increase, by control of these parameters.

This article addresses the issue of Material Requirements Planning (MRP) and its importance as an administrative system planning and management of the materials required for the production processes of a company. The objective of this research is to present proper procedures and recommendations for the implementation of MRP in SMEs through simplified explanations for successful implementation. Finally, the benefits obtained in a particular case and conclude that the MRP, when properly used are presented, provides a solution for SMEs in areas such as minimizing inventory costs and supply at the required time.

La contaminación del aire es uno de los problemas ambientales más severos a nivel mundial, está presente en todas las sociedades, independientemente del nivel de desarrollo socioeconómico, y constituye un fenómeno que tiene particular incidencia sobre la salud del hombre. En el Perú, la contaminación del aire afecta mayormente a las zonas urbanas, originada principalmente por factores de contaminación industrial, domestica y vehicular. El mayor contribuyente de la contaminación es el parque automotor; La que está conformado por más de 1.5 millones de vehículos, de los cuales, el 65% circulan en la ciudad de Lima. Este parque automotor es uno de los más obsoletos, con un promedio aproximado de 17 años de antigüedad, debido principalmente a la masiva importación de unidades usadas en años previos sin una regulación adecuada. En la zona Metropolitana de Lima y Callao, las ...