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1
artículo
Publicado 2020
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The resolution of triangular systems is a computational nucleus widely used in various scientific applications. This research performs the implementation and comparison of several parallel algorithms against an efficient sequential algorithm for solving triangular systems. The algorithms are distinguished by the way of partitioning the matrix and the allocation to the processors. The analysis of the behavior of the algorithms is performed in the solution of systems of linear superior triangular equations in a cluster of computers. For this, the arithmetic time, communication time, speed-up, and maximum efficiency metrics are taken into account. Experiments were performed for each algorithm with different matrix sizes on various processors. The algorithm with the best results was the one that blocks the rows of the matrix and applies a cyclical distribution in the cluster.
2
artículo
Nowadays, some of the most popular tools for parallel programming are Message Passing Interface and Open Multi-Processing. It is of interest to compare these tools in solving the same kind of problems, because of the use of different approaches to inter-task communication. This work attempts to contribute to this goal by running trials in a centralized shared memory architecture in the case of problems with an entirely parallel solution. The selected case study was the parallel computation of Mandelbrot set. Trials were conducted for different iteration limits, processors amount, and C++ implementation variants. The results show better performance in the case of Open Multi-Processing.
3
tesis de grado
Publicado 2024
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La presente investigación tiene por finalidad delimitar cuál es la trascendencia del impacto de los juicios paralelos impulsados por los medios de prensa en los derechos fundamentales del imputado durante la fase de investigación preparatoria en el Perú. En ese sentido, se busca determinar el concepto de los juicios paralelos, y como se identifica la forma en que la jurisprudencia constitucional se pronuncia sobre el conflicto entre la libertad de expresión de los medios y los derechos fundamentales del imputado. Asimismo, se identifica cuáles son los principales actos dentro de la fase inicial de investigación preparatoria que son usualmente mediatizados. Finalmente se determina cuáles son los principios procesales que podrían verse afectados mediante los juicios paralelos realizados en la etapa de investigación preparatoria. La presente investigación es de tipo básica, de e...
4
artículo
Publicado 2005
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One of the factors that determine the productivity inside a company is the state of the machinery with which is counted for the production. Our objective was to design a system that allows the engineers to supervise and to evaluate the state of the machinery, so that this in sot only repaired when it doesn't work, but rather one has the possibility to take a periodic registration of the operation of the same one. With it, it'll be possible to identify the flaws of the machinery in their diverse evolutionary phases. This will allow to carry out an appropriate correction of the problem diminishing the maintenance cost and, therefore, to stop the machinery for a smaller period of time. The system that we have designed in compound for a card of acquisition that will allow to capture and to transfer the mechanical vibrations of the machinery toward analysis software that allows the engineers ...
5
artículo
Publicado 2023
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The article shows the contributions of the Ricardo Palma Institute, through the analysis of the tradition “ Con días y ollas venceremos” (“We will win with days and pots”): the well-known historical paragraph, the description of the Lima proclamations and the meaning of the santo y seña. The reader is then invited to recognize the keys and clues left by the traditionist, making a parallelism between military strategy and the phenomenon of literary creation. Thus, the palmist narrative procedures are highlighted, especially those that correspond to the art of hiding or cheating, the suggestion and appetence of the verbal game, the modern concept of history through fiction and the blending of other elements to enhance the idea of time, space and the atmosphere of the narration. In the end the riddle appears solved with touches that ann...
6
artículo
Publicado 2021
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The present research work aims to determine the psychometric properties of the Rosenberg self-esteem scale; It is instrumental, involving a sample with 115 higher education students from Tacna between 18 to 55 years old. Item analysis, exploratory analysis, confirmatory analysis, bifactor, parallel analysis, reliability were performed and percentiles were determined. The results indicate that items 6 and 8 are not adequate for the negative dimension and this same dimension is not adequate according to the total variance explained; In the confirmatory analysis, the GFI adjustment index was not optimal, the parallel analysis using the least squares method recommends two dimensions and explains 59% of the explained variance, it was analyzed according to the adjustment indices for a bifactor that cannot be a one-dimensional scale.
7
artículo
Publicado 2022
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Introduction: Transversal competences constitute a key element for the academic-professional training and sociolabour insertion of university students. Numerous studies reveal a gap between the level of generic skills and the level demanded by the labor market. The evaluation of these competencies becomes essential in university education, so it is necessary to have valid evaluation tools. Objective: To develop a measurement instrument that effectively evaluates said competencies. Method: a questionnaire has been designed based on the model used by Solanes et al. (2008), using the Delphi method to assess content validity. The test has been administered to 946 students, dividing this sample into four equal subgroups to carry out two parallel analyzes and two confirmatory factor analyzes. Results: The final scale is composed of 38 items that explain 53.1% of the variance, with a McDonald...
8
artículo
Publicado 2022
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Introduction: Transversal competences constitute a key element for the academic-professional training and sociolabour insertion of university students. Numerous studies reveal a gap between the level of generic skills and the level demanded by the labor market. The evaluation of these competencies becomes essential in university education, so it is necessary to have valid evaluation tools. Objective: To develop a measurement instrument that effectively evaluates said competencies. Method: a questionnaire has been designed based on the model used by Solanes et al. (2008), using the Delphi method to assess content validity. The test has been administered to 946 students, dividing this sample into four equal subgroups to carry out two parallel analyzes and two confirmatory factor analyzes. Results: The final scale is composed of 38 items that explain 53.1% of the variance, with a McDonald...
9
artículo
Publicado 2021
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What we understand as informality existed a long time before the term was coined. For a better understanding of the phenomenon, it is necessary to trace the origins of those activities that over time have been carried outside the legal system that formally defines the modern nation-state. The article seeks to articulate the contemporary informal phenomenon to other ways of existing outside the law that have their origin in colonial regimes, characterized by the need to implement parallel government and legal systems. It is about understanding informality as a phenomenon typical of postcolonial situations and proposing ways out from that reading.
10
artículo
Publicado 2023
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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
artículo
Publicado 2024
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In this article, we propose to analyze how healthcare personnel involved in organ and tissue procurement activities use black humor during their daily work. The objective here is twofold: on the one hand, following previous studies, we are interested in showing the role of black humor as a way of dealing with death. On the other hand, we suggest that, in a parallel and complementary way, in this context black humor exposes a performative sense as a form of agency that attempts to modify an adverse reality. This work combines the methodological tools provided by ethnography and conducting open, multi-session interviews. The events revealed during the fieldwork and interviews that associate humor and brain death show the uses, limits and ways in which black humor operates in daily healthcare work of physical and emotional complexity.
12
artículo
La globalización de los mercados, hoy más que nunca, genera continuos cambios en gustos y preferencias por parte del consumidor, cambios que a su vez generan cambios en la oferta y demanda, haciendo que la presión competitiva cada día sea más intensa, por lo que el especialista en Marketing de hoy debe trabajar con un modelo que le permita lograr los objetivos de la empresa al final de todo un proceso continuo y de calidad. Dicho modelo se inicia previa investigación de mercados, con la identificación de la cultura y de las necesidades de los consumidores del mercado meta, con el propósito de desarrollar satisfactores de aquellas necesidades para que, a través de una segmentación de mercados y un estudio del comportamiento del consumidor, tengamos la información que permitirá al área de ventas colocar el producto con las mejores ventajas dentro del mercado, además de fideli...
13
artículo
Publicado 2019
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La investigación tuvo como objetivo diseñar materiales educativos según el etno de su contexto, para aplicar en la enseñanza y aprendizaje de la matemática, dónde este método debe ser combinado con otros métodos activos de acuerdo a la naturaleza, para tal efecto el diseño fue cuasi experimental con la aplicación de una pre prueba, proceso y post prueba; conformado por los estudiantes del III y V ciclo de la Escuela Profesional de Educación Primaria de la Universidad Nacional Hermilio Valdizán - Obas, matriculados en el año académico 2017, en el primer grupo experimental se utilizó los materiales etnomatemáticos diseñados en la investigación, mientras en el segundo grupo control, el enfoque convencional dictaminados por el Ministerio de Educación. Para ello se realizó un diagnóstico en las instituciones públicas del distrito de Obas, donde se aplicó, procesó, veri...
14
artículo
Publicado 2019
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The research aimed to design educational materials according to the ethno of their context, to apply in the teaching and learning of mathematics, where this method must be combined with other active methods according to nature, for this purpose the design was quasi-experimental with the application of a pre test, process and post test; formed by the students of the III and V cycle of the Professional School of Primary Education of the National University Hermilio Valdizán - Obas, enrolled in the academic year 2017, in the first experimental group the ethnomathematical materials designed in the research were used, while in the second control group, the conventional approach dictated by the Ministry of Education. For this, a diagnosis was made in the public institutions of the Obas district, where the pedagogical instruments were applied, processed, verified and analyzed and thus obtain t...
15
artículo
Publicado 2022
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The precariousness, in the urban history of our city, has been linked to a great lack of resources thatlead its inhabitants to live in inadequate places and in contexts of poverty and disorder. Parallel tothis, it has prevailed in this history the desire and enormous effort to be inhabitants of a city that,since the middle of the twentieth century, has grown vertiginously prevailed.In Lima we can identify two types of city: the urban and the urban-cone. The first corresponds to the oldestdistricts, located in the central part, whose land has been appropriated over the years by real estate andfinancial investments. The “other city” is that built on the edges of the rivers, the skirts of the hills andthe sands, where land traffickers have taken advantage of the needs of the people. That has given rise toan enormous amount of human settlements, which with the time were consolidating the...
16
artículo
Publicado 2019
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La precariedad, en la historia urbana de nuestra ciudad, ha estado ligada a una gran falta de recursos que llevó a sus habitantes a vivir en lugares inadecuados y en contextos de pobreza y desorden. De manera paralela, ha prevalecido en esta historia el deseo y el enorme esfuerzo por ser pobladores de una ciudad que, desde mediados del siglo XX, creció vertiginosamente. En Lima podemos identificar dos tipos de ciudad: la urbana y la conurbana. La primera corresponde a los distritos más antiguos, ubicados en la parte central, cuyos terrenos han sido apropiados con los años por el capital inmobiliario y las inversiones financieras. La “otra ciudad” es aquella construida en las márgenes de los ríos, las faldas de los cerros y los arenales, donde traficantes de terreno han aprovechado las necesidades de las personas. Eso ha dado lugar a una enorme cantidad de asentamientos humanos,...
17
artículo
Publicado 2020
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Objective: to construct and evaluate the psychometric properties of an instrument that assesses coupledynamics within a relationship of young people between the ages of 18 and 30 years. Methodology:After carrying out a strict theoretical review and having defined the construct, the Youth ViolenceQuestionnaire with 29 items was prepared, with its 5 factors: factor 1 Physical Violence (10 items),factor 2 Manipulation (5 items ), factor 3 Verbal Violence (6 items), factor 4 Coercion (3 items); finally,the factor 5 Prohibitions (5 items); with a type of dichotomous response and Likert of five points. It wasadministered to 355 young residents of Lima-Este. The construct validity was evaluated by means ofthe Exploratory Factor Analysis, using the method of parallel components with oblimin rotation and theKaiser-Meyer-Olkin (KMO) normalization. Results: a KMO of .937 was obtained, with a signif...
18
artículo
The aim of this article is to analyse the main factors of excessive prociclicidad of financial systems, due to increased unnecessary fluctuations in the level of activity which puts at risk the financial stability with a negative impact on the real economy of the countries. The normal real economic growth of a country goes in parallel with the growth of financial systems in general and with the growth of appropriations in particular, causing a logical and desirable prociclicidad very strong among these, always putting in evidence as the balances of payments National correspond as interdependent elements of a global monetary system zero-sum. The problem arises to the extent that there are factors inherent in the behaviour of economic agents acting within the financial systems or arising out of prudential regulation which increase volatility in abnormal form on their levels considered fund...
19
artículo
Publicado 2009
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El objetivo de este artículo es analizar los principales factores de la excesiva prociclicidad de los sistemas financieros, debido al incremento innecesario de las oscilaciones en el nivel de actividad, lo cual pone en riesgo la estabilidad financiera con repercusiones negativas en la economía real de los países.El normal crecimiento económico real de un país va en paralelo con el crecimiento de los sistemas financieros en general y con el crecimiento de los créditos en particular, ocasionando una prociclicidad lógica y deseable muy fuerte entre estos, siempre poniendo en evidencia cómo las balanzas de pagos nacionales se corresponden como elementos interdependientes de un sistema monetario global de suma cero.La problemática se plantea en la medida en que existen factores inherentes al comportamiento de los agentes económicos que actúan dentro de los sistemas financieros o qu...
20
tesis de maestría
Publicado 2021
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La adaptación de las tecnologías digitales y la aplicación de Internet en las organizaciones, personas y dispositivos, generan una cantidad extraordinaria de datos en diversas áreas de la ciencia como por ejemplo: minería de datos, big data, clasificación de patrones, reconocimiento de imágenes, inteligencia de negocios, bioinformática, detección de outliers e IoT. En consecuencia estos datos requieren ser analizados, procesados y almacenados. El proceso de análisis generalmente trae dificultades computacionales como el tiempo de ejecución y la calidad de los resultados. Clustering es una de las técnicas de clasificación mas utilizadas para analizar grandes y pequeños volúmenes de datos. En la literatura se puede hallar algoritmos como por ejemplo: Social Spider Optimization (SSO), K-means, Artificial Bee Colony (ABC), Particle Swarm Optimization (PSO), Genetic Algorithms ...
