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1
tesis de grado
Publicado 2025
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In this research, an artificial neural network model was developed to predict the credit risk of clients in the financial system, surpassing traditional methods in accuracy, sensitivity, and specificity. Using data from Caja Sullana, which included 85 client records with variables such as income, credit history, and age, a cross-sectional non-experimental design was employed. The network, composed of an input layer, a hidden layer, and an output layer, was trained using a scaled conjugate gradient algorithm, standing out for its efficient and simple architecture. The results showed a 100% accuracy in training and testing, and a general accuracy of 98.25%, with outstanding sensitivity and specificity, thus validating the proposed hypotheses. This study demonstrates the capability of neural networks to significantly enhance credit risk evaluation, offering a powerful tool for credit decisi...
2
tesis de grado
Publicado 2025
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Introducción: En 1985, la OMS recomendó una tasa de cesáreas entre el 10-15% a nivel global. Actualmente esta cifra se encuentra en aumento, alcanzando hasta el 42% en Latinoamérica. En el Hospital Nacional Cayetano Heredia entre 2013 y 2017 la tasa de cesáreas alcanzó el 52.5%. Las cesáreas innecesarias incrementan el riesgo de complicaciones puerperales y neonatales, días de hospitalización y costos médicos. El puntaje de Flamm ha demostrado ser un predictor útil para parto vaginal en mujeres con antecedente de cesárea primaria. La búsqueda de estrategias para reducir la tasa de cesáreas cobra relevancia debido al aumento de la misma; para esto es importante la actualización periódica de la información sobre el tema y la discusión activa con los encargados de la toma de decisiones. Objetivos: Este estudio busca aplicar el puntaje de Flamm para predecir la probabilidad...
3
artículo
Publicado 2021
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The SARS-CoV-2 pandemic had taken the world by surprise since its discovery on December 2019, causing major losses worldwide. In this work, a deep learning model was developed to predict and forecast the daily SARS-CoV-2 cases on the Peruvian regions. The data used belongs to the open covid–19 data set, sourced by the Health Ministry of Peru (MINSA). The data set includes the periods from March 03, 2020 to March 16, 2021. A holdout approach was used, creating a training and validation data splits. Using the validation set, a temporal convolution neural network (TCN) composed by five layers was developed. The model was design to predict a mean tendency alongside with a prediction interval. To find the best hyper parameter configuration, a Bayesian approach was applied over the validation set. The TCN model was trained using the optimal configurati...
4
artículo
Publicado 2018
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Este trabajo evalúa el efecto que tienen ciertas variables paisajísticas (ríos, tierras agropecuarias, áreas antrópicas y bosque nativo) en los patrones de presencia del mono araña, Ateles fusciceps, en el noroccidente ecuatoriano. Se utilizaron registros geográficos de Ateles fusciceps tomados en campo y de estudios previos. Se evaluó el efecto de la proximidad de cada variable por medio de la prueba T de Student. Posteriormente mediante regresiones logísticas y por medio del Criterio de Información de Akaike (AIC) se seleccionaron los mejores modelos y se identificaron las variables más importantes. Se observó que tierras agropecuarias y zonas antrópicas tienen un efecto negativo para este primate, pues los puntos de presencia se encontraron alejados de éstas. Se evidencia también que Ateles fusciceps prefiere sitios cercanos a bosque, resultado que corrobora investigaci...
5
artículo
Publicado 2018
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In this work, I investigate the effect of some landscape variables (rivers, agricultural lands, anthropic areas and native forest) on the presence patterns of spider monkey, Ateles fusciceps, in the northwestern Ecuador. Geographical records collected in field and others from previous studies were used to conduct this study. Effects of proximity of each variable to presence of A. fusciceps were assessed with Student T tests. The best model and the most important variables were identified using logistic regressions and the Akaike Information Criterion (AIC). The results showed that agricultural lands and anthropic zones were from the primate presence points, suggesting a negative effect on A. fusciceps. I also found that A. fusciceps prefers sites near rivers, this observation has not been reported in previous studies. Two important models were found to predict the presence of A. fuscicep...
6
artículo
Purpose: The aim of this paper is to address a company valuation procedure by explaining the steps that must be followed from an economic-financial perspective. Design/methodology: We employ the study case methodology to fulfill all the procedure stages. Specifically, we analyze the Peruvian cement company “Cementos Pacasmayo”. A 10-year discounted cash flow (DCF) is presented and brought to present value using a discount rate (WACC) composed by the cost of debt and the cost of capital of the company. Findings: We can conclude that the evaluation process should always include the country, industry and company. Practical implications: Our study provides useful implications for management. On the one hand, it is important to highlight the subjectivity to predict some parameters or doing assumptions. On the other hand, it is important to understand and know a good procedure to valuate a...
7
artículo
Publicado 2015
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Objective: To evaluate the predictive capacity of Sonographic Fetal Lung Maturity Profile compared to the Clements test to reliably predict the Fetal Maturity, avoiding potential complications of amniocentesis, and constraints that exist in our environment for the use of markers prediction biochemical fetal maturity test as lecithin / sphingomyelin among others. Material and Methods: Descriptive, prospective study evaluating diagnostic parameters to determine fetal lung maturity using ultrasound and amniocentesis procedures, and comparing perinatal outcome as the gold standard. 1200 pregnant women hospitalized with high obstetric risk at Hospital Nacional Arzobispo Loayza from December 1995 to December 2010 were studied. They underwent sonographic profile of lung maturity with five parameters; liver, distal femoral epiphysis, and gestational age composed of multiple biometrics. All had a...
8
tesis de grado
Publicado 2024
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Loreto's exports have historically been based on activities that exploit natural resources. The purpose of this study is to determine the relationship between exports and gross value added in Loreto, during the period 2017 to 2021, for which a Correlational scope and Non-Experimental design was used, composed of traditional and non-traditional products, and the gross value added, composed of eleven economic activities, calculated at constant prices. From the analysis of exports, the traditional product “Crude oil and derivatives” had the highest concentration during the analysis period, which was US$277.109 million, representing 84.79% of total exports. For its part, the economic activity with the highest concentration is the “Extraction of oil, gas and minerals”, with a contribution of S/ 7,370,567.00, representing 59.33% of the total production of the series studied. Concluding...
9
tesis de grado
Publicado 2023
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El acceso al texto completo de la tesis estará habilitado el 23 de noviembre de 2025, por expresa disposición del autor.
10
tesis doctoral
Publicado 2024
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La investigación propone la validación de un modelo compuesto por factores del ámbito laboral y no laboral de un trabajador, el cual tiene como objetivo predecir la variable endógena engagement laboral a partir de variables exógenas como los recursos laborales, recursos personales, enriquecimiento en la interacción trabajo-familia y la satisfacción de ocio personal. La muestra estuvo conformada por 124 colaboradores de una universidad privada de Lima, tanto administrativos como académicos, los cuales fueron seleccionados por un método de muestreo de tipo no probabilístico por juicio e intencional. Para la recolección de los datos se crearon cuatro cuestionarios a partir de instrumentos como el JD-R (Job – Demand Resource), el UWES (Utrecht Work Engagement Scale), LSS-SF (Leisure Satisfaction Scale Short Form) y el SWING (cuestionario de interacción trabajo-familia). El mode...
11
tesis de grado
Publicado 2021
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Innovation is the key to success in organizations, even though, the introduction of new products is a complex practice regardless of the market where it is sold (Bjorn et al., 2015, p. 252). Between 80-85% of products fail (The Nielsen Company, 2018, p. 3). Despite the studies, the researchers cannot specify an assertive theoretical framework (Al-Jundi et al., 2019, p. 3). The main reason why there is still no effective theoretical basis to predict the purchase intention of innovations is because of the complexity of the consumer and because it varies by industry. Therefore, the objective is to analyze the impact of the degree of the innovative profile on the purchase intention of new packaged food in housewives in Zone 7 of Metropolitan Lima. So that a group of consumers is specified in a respective industry. A high degree of innovative profile in the prospectus was considered to have a...
12
tesis de grado
Publicado 2021
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El presente trabajo de investigación tuvo como objetivo estimar la posibleexistencia de una relación entre el consumo de Cannabis Sativa por aspiración de humo y el estado de salud periodontal en adultos jóvenes estudiantes de laFacultad de Ciencias de la Salud de la Universidad Andina del Cusco en el año2019. El estudio es cuantitativo no experimental, relacional, transversal y de campo. La muestra corresponde a 347 estudiantes de 18 a 25 años elegidos mediante muestreo aleatorio simple. Primero se empleó un cuestionario anónimopara conocer datos de filiación, además de reconocer consumidores, patronesde consumo y opiniones relacionadas, luego se empleó el Índice PeriodontaComunitario. Los datos obtenidos fueron recopilados en una base de datos confeccionada para el estudio y procesados empleando un análisis de regresiónlogística bivariado, prueba de Chi Cuadrado y Pseudo...
