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1
artículo
Los países en desarrollo como el Perú y las Filipinas comparten similares problemas ambientales. La degradación de los recursos ambientales en Bohol, Filipinas ha avanzado hasta un estado crítico debido a la sobrepoblación, la guerra civil, deforestación y falta de estrategias y políticas de protección y manejo ambiental. En el Perú se está produciendo una degradación ambiental que, sin embargo, no ha llegado al estado crítico. Debido a semejanzas en el crecimiento poblacional, uso de la tierra y fisiografía, la información obtenida mediante el estudio sistemático de la degradación ambiental y de la ampliación agrícola en las Filipinas, es aplicable al Perú. Se determinó que para ambas localidades el aspecto más importante de la protección, manejo y ampliación del uso de los recursos ambientales es el desarrollo de una educación ambiental y de programas de toma de...
2
tesis doctoral
La investigación trata el tema de la programación de máquinas en paralelo, conocido como Parallel Machine Scheduling (PMS). Se enfoca en el problema de la programación a gran escala, donde el número de trabajos es muy grande y mucho mayor que el número de recursos. La solución consiste en asignar y secuenciar los trabajos en los recursos, de modo tal, que se logren terminar a tiempo o con el menor atraso posible. PMS es un problema clásico, tanto de la ingeniería industrial por su relación con la optimización de recursos, y de la matemática computacional de análisis combinatorio. Casos de pocos trabajos y recursos, han sido resueltos satisfactoriamente por modelos de optimización, los casos de mayor tamaño se abordan con métodos heurísticos y se logran soluciones aceptables. La programación a gran escala es un problema relativamente nuevo, pero cuya presencia aumenta de...
3
tesis de grado
Most of the problems concerning the fluids flow in conduits and tubes they imply the prediction of the conditions in a section of a system, when the conditions of some other section are known. In any section of this system, generally we are worried about the pressure of the fluid, the speed of the flow and the elevation of the section. In a line of pipe in series the loss of total energy is the sum of the great and small individual losses. This affirmation is in agreement with the principle of which the equation of the energy is a way to both take into account all the energy in the system between points. The nature parallel systems requires that the technique used for their analysis is different from which is used in series in the analysis of the systems. In general, a parallel system can have any number of branches. It stops most of the problems of this type, the objective is to determi...
4
artículo
The report addresses the management of parallel processes and synchronization in concurrent systems, highlighting common problems in accessing shared resources that affect efficiency and stability. It also highlights the need to optimize the management of large volumes of data and improve academic cooperation to develop advanced solutions.The objective of the study is to identify and analyze synchronization strategies that optimize parallel processes, evaluating their effectiveness in different scenarios and offering recommendations based on recent literature. A systematic review was conducted using the PRISMA methodology, selecting relevant articles published in the last five years and formulating key questions to guide the analysis. The results highlight that non-blocking strategies are more effective for managing shared resources, and techniques such as the use of mutex and actor mode...
5
artículo
An assessment of part of a family planning program is presented in a social environment characterized by high fertility, low contraceptive use and knowledge and great interest in information and practice of family planning methods. Accidental pregnancy rates and subsequent expulsions are similar to those found in urban environments and sea level. By contrast, first expulsions rates are higher than those established for suburban and metropolitan populations sea level, so it could be considered an effect of biological, possibly related to altitude conditions. The application of IUDs appears to face a number of problems arising from the socio-cultural status of the population. Although theoretically would be the most useful means of contraception in Cerro de Pasco, its use is affected by the limited knowledge of patients on the characteristics of the method, which makes it sensitive to the ...
6
artículo
An assessment of part of a family planning program is presented in a social environment characterized by high fertility, low contraceptive use and knowledge and great interest in information and practice of family planning methods. Accidental pregnancy rates and subsequent expulsions are similar to those found in urban environments and sea level. By contrast, first expulsions rates are higher than those established for suburban and metropolitan populations sea level, so it could be considered an effect of biological, possibly related to altitude conditions. The application of IUDs appears to face a number of problems arising from the socio-cultural status of the population. Although theoretically would be the most useful means of contraception in Cerro de Pasco, its use is affected by the limited knowledge of patients on the characteristics of the method, which makes it sensitive to the ...
7
tesis de grado
La presente Tesis desarrollará la implementación de un Entorno Virtual de Tutorías y Monitoreo de Estudiantes como complemento al Sistema de Tutoría para la Escuela Profesional de Ingeniería de Sistemas de la Universidad Andina del Cusco. Se ha formulado la hipótesis: El Entorno Virtual Orientado a Tutorías y Monitoreo de Estudiantes para la Escuela Profesional de Ingeniería de Sistemas de la Universidad Andina del Cusco contribuye a la mejora del Actual Sistema de Tutorías de la EP-IS. La población de estudio fueron tutores formativos y tutores académicos de la Escuela Profesional de Ingeniería de Sistemas, y se tomaron 2 encuestas, la primera fue el cuestionario PRE con todo lo referente y relacionado al Sistema de Tutorías que se implantó en el semestre 2016-I correspondiente al grupo control, y la segunda fue el cuestionario POST correspondiente a nuestro grupo experime...
8
tesis de grado
Universidad Nacional Agraria La Molina. Facultad de Industrias Alimentarias. Departamento Académico de Ingeniería de Alimentos y Productos Agropecuarios
9
artículo
At present, social responsibility presents a problem and this refers to whether the social responsibility is only limited to social issues. Based on that scenario, the author emphasizes highlighting a broader vision that includes issues of human rights, the environment and relationships with local communities. Likewise, there is another parallel conflict between private business actors and the protective actions of public authorities. In other words, there is a regulatory vacuum of strategic and technical limitations that do not make it possible to assemble national and international public policies and programs. In this way, the author outlines the difficulty of implementing national and international norms and, consequently, the difficulty of enforcing compliance with private entities. However, there is a recent and growing complementarity between ILO standards and social initiatives o...
10
artículo
Canine rabies is a current health problem, very important for public health, livestock production, and the economy. The objective of this research was to evaluate the Spatio-temporal distribution of canine rabies in the period 2009-2018 in Havana, Cuba. A descriptive, retrospective, passive, cross-sectional, observational study was conducted. For the statistical analysis, the Epidat software, version 3.1, based on a Microsoft Excel matrix, was used. The epidemiological indicators were determined: prevalence of cases, monthly time series, and cumulative trend of outbreaks. While, for the spatial analysis, the geographic coordinates were calculated from the centroid of each municipality. For visualization, the QGIS version 3.0.1 program and the GEOCUBA cartographic bases were used. The comparison of proportions was made for the positive cases between the peripheral and central areas, which...
11
tesis de grado
Debido a los constantes deslizamientos que se producen en lugares cercanos a la zona de estudio, especialmente en épocas de invierno, nos llevó a realizar un estudio más detallado y minucioso acerca de la estabilidad de taludes en roca entre los kilómetros 95 al 97 de la carretera Ciudad de Dios - Cajamarca. Es por ello que la presente tesis se encargará de informar al gobierno central y a la población aledaña si realmente se puede producir un deslizamiento en el tramo mencionado. Para poder llegar a un veredicto final se dividió en siete estaciones geomecánicas a la zona, en donde se calculó la cohesión y ángulo de fricción interno de la roca mediante el criterio de rotura de Barton - Bandis, se analizó la cinemática de los taludes, a ello se sumó el cálculo de la densidad de las unidades litológicas aflorantes y finalmente los datos obtenidos se ingresaron a los softw...