Environmental economic valuation seeks a monetary measurement of the gain or loss of welfare or utility that an individual or a particular group experience, because of improved or damaged environmental asset accessible to such person or group. The study concludes that the environmental components perform functions that maintain the conditions of ecosystems and the atmosphere, so that the State establishes mechanisms to enhance environmental services, seeking to ensure the conservation of ecosystems, biodiversity and other resources natural.

Environmental economic valuation seeks a monetary measurement of the gain or loss of welfare or utility that an individual or a particular group experience, because of improved or damaged environmental asset accessible to such person or group. The study concludes that the environmental components perform functions that maintain the conditions of ecosystems and the atmosphere, so that the State establishes mechanisms to enhance environmental services, seeking to ensure the conservation of ecosystems, biodiversity and other resources natural.

Numeric methods are effective tools to solve science or engineering problems , which use deterministic differential equations. We have Euler’s and Heun’s methods and Runge- Kutta’s schemes. Unfortunately, these algorithms don’t work with stochastic differential equations. The main application is referred to the utilization of stochastic calculus in the financial area. The Black-Scholes and Merton model of the price values option in the financial markets is expressed by the Brownian movement and the stochastic differential equation, proposing the financial derivatives valorization by means of the stochastic calculus.

The article proposes one model for the delivery problem. We decided to make a model of mathematic programming that can answer questions on how to realize the delivery of articles from one point named warehouse, to destiny places; looking to minimizing costs when translating or transporting goods or articles. The results obtained for the model, to fulfill an average demand of 80 boxes to deliver, require of 5 small lorries for an optimal delivery; it means only 5 routes or tours are needed to fulfill all delivery to customers.

The article presents the implementation of differential evolution algorithm in MATLAB® software. The price paid for an efficient numerical optimization, means to use of complex mathematics. The differential evolution is an exception because is easy to apply and robust in the numerical optimization. The differential evolution is a design tool of great utility in practical applications. The program presented in this article is an improved and efficient implementation of the program that present Price and Storm.

This work highlights the Data Envelopment Analysis (DEA) Methodology as a benchmarking tool suitable to quantify or measure the efficiency of an organization. From basic concepts to efficiency frontier functions are explained here, showing the mathematical fundamentals, together with the DEA goodness and scope.

The article reviews the concepts of prediction and presents a new methodology, which uses the Box- Jenkins class, for prediction of demand for calls, which make customers call centers known as callcenter. The study concludes that the use of time series tools, works efficiently, which would be in improving the efficiency and competitiveness in the call center.

In this article are developed and implemented, the integration of numerical algorithms, which allow solve problems in science and engineering, such as the calculation of areas, volumes, applied mechanics, differential equations (dynamic systems). Given the need for a high-precision, he examines the different rules of numerical integration; based on the errors that occur when the integrand is replaced by a polynomial interpolation P (x), known as the formulas of integration Newton - Cotes. The rule of Richardson extrapolation can be applied to any formula squaring Newton- Cotes, or any computer which is based on a grid of wide h and error described as a power h.

The complexity in our programs increases along with the problems we deal with. A way of solving them is to repeat more than once the same structures, just like traditional or imperative programming accustomed us to. This article explores the relationships among C++ templates, generic programming and the ability to develop statistics computations and generation of codes. Several developers use languages of high level to developers use languages of high level to develop applications in scientific computation; and the mechanism of templates in C++ allows them to solve important problems in the design of libraries of class.

The article presents a methodology that uses the time series, for forecasting indices closing prices, which made the stock market centers. The behavior response to a current generated on the expectation value of change in the preceding moment, ie an expected value conditioned by the variance of previous period. The GARCH model is the key part of the investigation. It presents a clear and detailed each of the activities undertaken to quantify market risk. ARIMA methodology is applied to predict the yields of the series, which generally have a variance is not constant over time, ie the existence of heteroscedasticity present and should be used generalized autoregressive conditional heteroskedasticity, for the company under study.

The article reviews the concepts of the unfinished in Occupational Risk Prevention (PRL): Psychosocial risks, thus finding that each day is increasing its importance on the health of workers and organizations (INSL). The study concludes that the laws of Safety and Health at Work in Peru, to promote a culture PRL, as shown in the good intentions of its articles. That is not enough to promote, it is also important to identify and evaluate the PRL. The laws and regulations and annexes suffer from methodological guidelines on how to act in the identification and assessment of psychosocial risks.

This article raises determine the area of an irregular surface, where is known a set of coordinates of the perimeter of the area. The surface area was determined applying numerical integration and computer aided desing methods, the software to be used for the calculations are: Matlab® and AutoCAD® respectively. The segment cubic interpolation method or splines is the most close to the perimeter boundary of the irregular surface because binds a set of points by splines. The accuracy of calculating the surface area depends on the number of points and the method to use. When the curve is defined perimeter, the application of methods in the calculation of CAD areas of irregular surface is direct, and result is reliable.

The article review concepts of computacional geometry apply to simplex methods using MATLAB®. Do it programming linear PL, a feasible solution is a vector who specify all restrictions, incluides that sign. The work check concepts of computacional geometry, the simplex method, and show the maner to apply graph form one problem PL. To include meta files(of MATLAB, version 7.0). Finally to argue two case of a problem PL.

The article shows the classification of existing simulation software and how they can be used in manufacturing systems.

This is a famous problem from the annals of literature in operations research. G. Dantzig in [1] refers to W.W. Jacobs with his paper "The Caterer Problem" Nav. Log Res. Quart. 1 1954; as well as Gaddum, Hoffman and Sokolowsky "On the Solution of the Caterer Problem" Naval Res Logist. Quart., Vol.1, No. 3, september, 1954, and William Prager "On the Caterer Problem" of Management Sci, Vol 3, No. 1 october 1956 and Management Sci, Vol 3, No. 2 january 1957. Subsequently both G. Hadley presents the subject in his "Linear Prograrriming" [2], as Walter Garvin in his Introduction as Linear Programming "presented the topic.

In this age of information, where people live around the internet; many business activities are carried unaINTRANET. The aim is to have the current state of a company operacines day after day. In the academic field; Today it is important to build institutional portals, so that the student or graduate ehresado, can count on the timely and effective information. the objective of acad emic {virtual project is to have an intranet at the Faculty of Industrial Engineering, to have timely information from diverdas operations performed in the university; especially in the academic aspect of the assessment and to have this information in cualquien time.

The article reviews the issue of water, a renewable natural resource, but unevenly distributed, which has become a rare commodity for some populations. The access to clean water is essential to health, one of the basic human rights and a component of effective policies for the protection of health (WHO, 2006), both in Peru and the world.

Water is the most important substance for human beings, after oxygen. Is a constituent of most animals and plants and is present in amount of minerals (Raffo Lecca, Treated Water And Peruvian Law, 2013). The BOD is one of the most important indicators in measuring pollution in wastewater, as well as in drinking water control.

Numeric methods are effective tools to solve science or engineering problems , which use deterministic differential equations. We have Euler’s and Heun’s methods and Runge- Kutta’s schemes. Unfortunately, these algorithms don’t work with stochastic differential equations. The main application is referred to the utilization of stochastic calculus in the financial area. The Black-Scholes and Merton model of the price values option in the financial markets is expressed by the Brownian movement and the stochastic differential equation, proposing the financial derivatives valorization by means of the stochastic calculus.

The article proposes one model for the delivery problem. We decided to make a model of mathematic programming that can answer questions on how to realize the delivery of articles from one point named warehouse, to destiny places; looking to minimizing costs when translating or transporting goods or articles. The results obtained for the model, to fulfill an average demand of 80 boxes to deliver, require of 5 small lorries for an optimal delivery; it means only 5 routes or tours are needed to fulfill all delivery to customers.