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1
tesis de maestría
Publicado 2015
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El presente trabajo de investigación brinda un enfoque general de la aplicación de la técnica Test Driven Development (TDD), o Desarrollo Guiado por Pruebas, dentro de la metodología tradicional con enfoque Cascada, y cómo su implicancia proporciona resultados favorables durante el proceso de implementación y en consecuencia la mejora de la calidad del producto. La investigación se llevó a cabo mediante una evaluación experimental en donde se crearon cuatro (4) grupos de desarrollo, cada uno de ellos estaba conformado por once (11) estudiantes del octavo ciclo de la especialidad de Ingeniería Informática. El experimento consistió en que dos (2) grupos apliquen la técnica de TDD dentro de la metodología Cascada y los otros (2) grupos no la apliquen. La inclusión de la técnica TDD se llevó a cabo en las primeras fases del modelo Cascada (Definición de requerimientos y Dis...
2
tesis de maestría
Publicado 2015
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El presente trabajo de investigación brinda un enfoque general de la aplicación de la técnica Test Driven Development (TDD), o Desarrollo Guiado por Pruebas, dentro de la metodología tradicional con enfoque Cascada, y cómo su implicancia proporciona resultados favorables durante el proceso de implementación y en consecuencia la mejora de la calidad del producto. La investigación se llevó a cabo mediante una evaluación experimental en donde se crearon cuatro (4) grupos de desarrollo, cada uno de ellos estaba conformado por once (11) estudiantes del octavo ciclo de la especialidad de Ingeniería Informática. El experimento consistió en que dos (2) grupos apliquen la técnica de TDD dentro de la metodología Cascada y los otros (2) grupos no la apliquen. La inclusión de la técnica TDD se llevó a cabo en las primeras fases del modelo Cascada (Definición de requerimientos y Dis...
3
artículo
Publicado 2017
Enlace
Enlace
This research was aimed at determining to what extent factors prior to university admission, motivational factors, and institutional experiences explain the academic persistence of students in the University Leveling Term (CIU) at the Simon Bolivar University - Coastal Campus. An explanatory-type quantitative study was proposed, which involved a non-experimental cross-sectional retrospective causal relationship design. The sample consisted of 101 students (50.5% female) with an average age of 17.90 years (SD = 2.37). The study found a significant relationship between some variables explaining academic persistence, which were: a) having a lower orientation toward academic goals; b) a higher score on the maladaptive pattern; c) a higher score in the perception of the Mathematics professor’s evaluation; and d) a higher score in the final performance. This set of variables explains 56.4% o...
4
artículo
Publicado 2017
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This research was aimed at determining to what extent factors prior to university admission, motivational factors, and institutional experiences explain the academic persistence of students in the University Leveling Term (CIU) at the Simon Bolivar University - Coastal Campus. An explanatory-type quantitative study was proposed, which involved a non-experimental cross-sectional retrospective causal relationship design. The sample consisted of 101 students (50.5% female) with an average age of 17.90 years (SD = 2.37). The study found a significant relationship between some variables explaining academic persistence, which were: a) having a lower orientation toward academic goals; b) a higher score on the maladaptive pattern; c) a higher score in the perception of the Mathematics professor’s evaluation; and d) a higher score in the final performance. This set of variables explains 56.4% o...
5
artículo
Publicado 2017
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This research was aimed at determining to what extent factors prior to university admission, motivational factors, and institutional experiences explain the academic persistence of students in the University Leveling Term (CIU) at the Simon Bolivar University - Coastal Campus. An explanatory-type quantitative study was proposed, which involved a non-experimental cross-sectional retrospective causal relationship design. The sample consisted of 101 students (50.5% female) with an average age of 17.90 years (SD = 2.37). The study found a significant relationship between some variables explaining academic persistence, which were: a) having a lower orientation toward academic goals; b) a higher score on the maladaptive pattern; c) a higher score in the perception of the Mathematics professor’s evaluation; and d) a higher score in the final performance. This set of variables explains 56.4% o...
6
artículo
Publicado 2021
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Agricultural production is very risky, especially in the case of potatoes, and the risk is differentiated between the Coast and the Sierra. On the coast, Lima shows high yields per hectare while, in the Sierra, Ayacucho shows low yields. In order to compare the risk levels in potato producers in the Ayacucho and Lima regions, and the incidence of probabilistic variables (farm price, yield per hectare, costs of fertilizers, seeds, pesticides) in the margin gross economic benefit per hectare, a stochastic Monte Carlo simulation is carried out with @Risk software. The hypothesis that Ayacucho would present higher levels of risk than Lima was tested. It was found that Lima has 65.5% of positive gross margin scenarios and Ayacucho only 1.6%. The main sources of risk in white potato production are the price on the farm and the yields per hectare. The variation of the gross margin per hectare d...
7
artículo
Currently, at the Latin American level, feminist collectives, such as Me too or Ni una menos, are gaining more and more notoriety in the media and social networks. This is largely due to the large amount of news, where the woman stands out for being the victim of sexual, psychological and physical abuse. It should be noted that many of these cases remain unresolved or forgotten. For this reason, every day there are more people who, outraged by this situation, find it necessary to raise their voices in protest with the intention of imparting justice and defending women's rights. Precisely, one way to express your point of view is through the written word. This study proposes to analyze and compare four opinion columns from the web platform of the newspaper Perú 21, written by Peruvian public figures who belong to the political and journalism sector, about the femicide of Solsiret Rodríg...
8
artículo
Publicado 2021
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This article explores and documents the incidence of the use of Twitter in the call for citizen participation by the main institutions and governmental figures of Cuba and Spain, in a period covering the daily life before the COVID-19 pandemic and the first months in which the disease hit the life of both countries. A quantitative methodology is used for the analysis, which will allow to compare the behavior of both governments, in terms of modernization of public authorities and the incentive for the population to get involved in the communication strategies established in social networks. The results indicate that we are in the presence of two digital communicative alternatives that, although numerically they do not seem to be far apart, differ in terms of the purpose of the calls to action and in the way of linking the resources of the microblogging network to determine the reaction o...
9
artículo
Publicado 2020
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We sought to compare the satisfaction of patients on hemodialysis, in the outsourced service of a company and the Arequipa social security, in the year 2017. Study with a quantitative approach, retrospective and comparative cross-sectional observational design. The sample it made up of 148 and 109 patients from the company Sermedial SAC and EsSalud. The instrument prepared based on the SERVPERF model by Cronin and Taylor for both entities. The results the patients satisfied were: in tangible elements the company Sermedial 68.24% and EsSalud 63.30%. In reliability, the company Sermedial 59.46% and EsSalud 54.13% also showed a level of satisfaction. In response capacity, the company Sermedial 65.54% and EsSalud 25.69% of its clients satisfied. In empathy, the company Sermedial 58.11% and EsSalud 55.05% of its customers satisfied. And in security, the company Sermedial obtained 85.81% and E...
10
artículo
Introduction. COVID-19 infection in high-altitude districts has been a subject of study for several researchers since the incidence and transmission capacity of this virus is lower at higher altitudes. Objective. Compare the lethality of COVID-19 at different altitudes in different districts of Peru. Material and Methods. We conducted a secondary descriptive observational study based on data from the Ministry of Health, we took as a unit of analysis 1874 districts of Peru, taking the fatality rate as the dependent variable. In our main analysis, we developed a crude and cofactor-adjusted linear regression between the COVID-19 case fatality rate per million inhabitants and altitude of residence of the districts of Peru, we also carried out two sensitivity analyzes, to provide different approaches to the problem, adding two multivariate regression models as a sensitivity analysis, all the ...
11
artículo
Publicado 2024
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The research focuses on designing a strategy for the development of research competence in university students of the Industrial Engineering degree at the UII. The quantitative approach methodology is experimental with an intact natural group and a group with intervention, where the intervention will be to put into practice the Workshop "How to do Research in Engineering" to later apply an evaluative rubric, analyzing the data in Minitab Statistical Software using procedures hypothesis testing and confidence intervals to compare the means of the interventions. The results of the experiment with a p-value of 0.013 show a significant change in the dependent variable: research competence, achieving the design of the strategy for the development of research competence in students of the Industrial Engineering degree at the UII.
12
artículo
Publicado 2024
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The research focuses on designing a strategy for the development of research competence in university students of the Industrial Engineering degree at the UII. The quantitative approach methodology is experimental with an intact natural group and a group with intervention, where the intervention will be to put into practice the Workshop "How to do Research in Engineering" to later apply an evaluative rubric, analyzing the data in Minitab Statistical Software using procedures hypothesis testing and confidence intervals to compare the means of the interventions. The results of the experiment with a p-value of 0.013 show a significant change in the dependent variable: research competence, achieving the design of the strategy for the development of research competence in students of the Industrial Engineering degree at the UII.
13
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.
14
artículo
Publicado 2018
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Las causas del cáncer infantil no son bien conocidas, pero la edad avanzada de los padres se ha sugerido como factor de riesgo para el cáncer infantil en varios estudios observacionales. En este estudio, se examina un posible vínculo entre la edad de los padres y los tumores sólidos infantiles. Se realizó un estudio de casos y controles hospitalario (310 casos y 620 controles, emparejados por edad y sexo) en el Hospital Rebagliati, Lima, Perú. Se utilizó la razón de probabilidades para comparar las categorías de edad materna y paterna avanzada con y sin ajustar por posibles factores de confusión.
15
artículo
Publicado 2025
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Objective: To evaluate and compare atherogenic indices in women with idiopathic Preterm Premature Rupture of Membranes (pPROM) and gestational age matched healthy pregnant controls. Material and methods: In the Departments of Biochemistry and Obstetrics & Gynecology at UCMS & GTBH-Delhi, a cross-sectional comparative pilot study was carried out from August 2023 to July 2024. The study comprised 60 participants: 30 women with idiopathic pPROM (26-34 weeks gestation) and 30 controls with uncomplicated pregnancies who were matched for gestational age. We computed the following atherogenic indices: non-HDL-C, Lipoprotein Combined Index (LCI), LDL-C/HDL-C, TC/HDL-C, Atherogenic Coefficient (AC) and Atherogenic Index of Plasma (AIP) and analysed the data. Results: HDL-C levels were lower in idiopathic pPROM group. TC, TG, and LDL-C levels were higher in cases of idiopathic pPROM group....
16
artículo
Publicado 2024
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During the COVID-19 pandemic, the importance of journalists disseminating accurate information to counteract misinformation became more evident. This study, conducted in the province of Azuay, Ecuador, investigated how journalists approached medical-scientific content during the initial wave of the pandemic. For this purpose, 10 journalists were interviewed, and the content of 66 health news stories across print, radio, digital, and audiovisual media was analyzed. The findings indicated that, despite the surge in news coverage, journalists exhibited limitations in source selection and knowledge regarding medical and scientific subjects. The study underscored the reliance on political-governmental sources, a lack of fact-checking, and complications inherent in emergency coverage that restricted access to high-quality information. The conclusions emphasize the necessity of training journal...
17
tesis de grado
Publicado 2025
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Este caso de estudio describe cómo una empresa peruana dedicada a la consultoría en TI consiguió acortar de manera significativa el tiempo que tomaba consolidar sus liquidaciones. Al inicio, el proceso era lento y generaba constantes retrabajos. Esto se debía, principalmente, a que la información estaba repartida en múltiples fuentes, a que muchas verificaciones se hacían manualmente y fuera de tiempo, a que se producían errores o duplicidades al cargar datos y a que no existía un seguimiento claro del avance de cada liquidación. Para enfrentar estas dificultades, se desarrolló una intervención basada en cuatro ejes. En primer lugar, se ordenó el flujo completo del proceso y se definieron reglas claras para cada método de liquidación (a consumo, constante y por asignación de personal). En segundo lugar, se fortaleció la calidad de los datos mediante campos obligatorios y...
18
artículo
Publicado 2014
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La globalización ha ido intensificando la competencia en muchos mercados. Con el fin de mantener su competitividad, las empresas buscan satisfacer las necesidades de los clientes mediante el cumplimiento de los requerimientos del mercado. En este contexto, los Índices de Capacidad de Proceso (ICP) juegan un rol trascendental en el análisis de capacidad de los procesos. Para el caso de datos no normales existen dos enfoques generales basados en transformaciones (Transformación de Box –Cox y de Johnson) y percentiles (Sistemas de distribuciones de Pearson y de Burr). Sin embargo, estudios anteriores sobre la comparación de tales métodos muestran distintas conclusiones y por ello nace la necesidad de aclarar las diferencias que existen entre estos métodos para poder implementar una correcta estimación de estos índices. En este trabajo, se realiza un estudio de simulación con el ...
19
artículo
Publicado 2009
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The dental microabrasion treatment is an effective and conservative procedure against enamel surface defects. The white spots appear frequently in children because inactive enamel caries, hypoplasia and fluorosis. When these spots affect anterior teeth produce an aesthetic effect. We describe two cases of enamel microabrasion of the upper incisors for both cases using 37 % H3PO4 and a mechanical technique (micromotor) in a 7 year old child with enamel hypoplasia and a 7 year old boy with inactive enamel caries. The aim of study was to compare affectivity of enamel microabrasion with 37% H3PO4 and pumice using different gadgets for this mechanical technique. After the first microabrasion session, the best result was the one using resin polishing burs and home made acrylic pads respect to the group which use rubber points, but these differences did not longer appeared in the afterward sess...
20
artículo
Publicado 2009
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La microabrasión dental es un procedimiento efectivo y conservador frente a los defectos superficiales del esmalte. Las manchas blancas del esmalte dental, aparecen frecuentemente en los niños por caries de esmalte inactiva, hipoplasias y fluorosis. Cuando estas manchas afectan a los dientes anteriores producen un efecto antiestético. Se describe dos casos clínicos de microabrasión del esmalte utilizando H3PO4 al 37 % y piedra pómez, mediante una técnica mecánica (micromotor), en un niño de 7 años con diagnóstico de hipoplasia del esmalte y otro niño de 7 años con diagnostico de caries de esmalte inactivo, en ambos casos la manchas blancas fueron localizados en el sector anterosuperior. El objetivo fue comparar la efectividad de la microabrasión sobre manchas superficiales del esmalte utilizando el ácido ortofosfórico al 37 % mediante el empleo de diferentes aditamentos e...
