Abierto en el repositorio institucional de la Universidade de São Paulo: https://doi.org/10.11606/D.55.2020.tde-10092020-171236

Dado que se desconoce como el cambio climático variará el caudal promedio mensual en la cuenca Río Verde, periodo 2013 – 2050, el presente estudio titulado “Influencia del cambio climático en los caudales mensuales de la cuenca Río Verde” tiene como objetivo principal determinar la variación del caudal promedio mensual en la cuenca Río Verde debido a la influencia del cambio climático para el periodo 2013 – 2050. El estudio presente no tiene hipótesis ya que es de alcance exploratorio y con diseño del tipo longitudinal de carácter predictivo. La cuenca Río Verde se ubica en el distrito Paratía, provincia Lampa, departamento Puno. La cuenca Río Verde tiene un área de 751.041 Km2, es dividido en las subcuencas 1 y 2 con áreas de 408.227 Km2 y 342.813 Km2, respectivamente, y sus cauces principales son de quinto orden. Se considera un total de 14 estaciones para el es...

Estudia los espacios de Baire y analiza el problema del producto de estos espacios. Además, presenta algunas condiciones usando el juego de Banach-Mazur para mostrar que el producto Baire es conservado en el producto. Analiza la diferencia del producto infinito de los espacios de Baire, entre el producto caja y el producto Tychonoff. También presenta una versión multitarjeta para este problema. Finalmente presenta algunos problemas en abierto relacionados con el producto de los espacios Baire.

En este trabajo se estudia el ejemplo de H. E. White Jr. en el cual se demuestra, asumiendo la Hipótesis del Contínuo, que existe un espacio de Baire cuyo cuadrado no es un espacio de Baire. Para este procedimiento, comenzamos estudiando los espacios de Baire, desde los dos puntos de vista, usando los conjuntos magros y los conjuntos abiertos, densos. Además presentamos los números cardinales para luego establecer la Hipótesis del Contínuo. Luego introducimos la topología de la densidad en R y establecemos algunos resultados que envuelven la medida de Lebesgue en R y esta nueva topología. Finalmente, con todas estas herramientas, presentamos como resultados el contraejemplo de H. E. White Jr.

Objetivo: Establecer la relación entre los Registros de Representación Semiótica y el Rendimiento académico en Matemática de los Estudiantes de I ciclo de la Escuela Profesional de Bromatología y Nutrición de la Universidad Nacional José Faustino Sánchez Carrión durante el año 2015. Métodos: La población estuvo conformada por 57 estudiantes del I Ciclo de la Escuela Profesional de Bromatología y Nutrición, matriculados en el Semestre Académico 2015 – II de la Universidad Nacional José Faustino Sánchez Carrión. Aplicando el estudio del muestreo aleatorio simple, en donde fueron encuestados los estudiantes lo que nos permitirá en la muestra inferir lo que ocurriría en la población. Luego de haber recolectado los datos conformado por una pregunta cerrada dicotómica (Sexo del estudiante) y por una pregunta literal (edad del estudiante en años cumplidos) Por otra par...

El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado.

In this work we will preliminarily present the definition of H-spaces, followed by them we will study the Bockstein spectral sequence that together with the exact pairs will allow us to define the so-called limit group associated with each spectral sequence. We also review the properties of string complexes and the complex homology of an elementary string. In the last section we present the spectral Bockstein sequence for H-spaces and Hopf algebras. In this context we prove that the limit group can be expressed isomorphically as a Hopf algebra.

“Objectives: SARS-CoV-2, a newly identified coronavirus responsible for the COVID-19 pandemic, has challenged health services and profoundly impacted people's lifestyles. The objective of the present study was to evaluate the effect of confinement during the COVID-19 pandemic on food consumption patterns and body weight in adults from 12 Ibero-American countries. Methods: Multicentric, cross-sectional study. Data was collected using an online survey disseminated by social networks. The sample included 10 552 people from Spain and 11 Latin American countries who were selected by snowball sampling. Results: While 38.50% of the sample reported weight gain, 16.90% reported weight lost. Weight change was associated with sex, age, country of residence, and education level. People who were not confined more often reported having maintained their weight in comparison to people who were confine...

“Introduction: This study aimed to determine the relationship between symptoms of anxiety and/or anhedonia (inability to feel pleasure) and diet quality during confinement due to COVID-19 in rural populations in Latin America. Methods: This was a multicentric, cross-sectional study. An online survey was applied, which included the Beck Anxiety Inventory, Snaith-Hamilton Pleasure Scale for assessing the presence of anhedonia, the Food Intake Questionnaire and sociodemographic questions. Results: The study included 10 552 people from 11 countries; 708 participants were living in rural areas. More than half of the participants were quarantined at the time of the survey. Diet quality was inversely associated with anhedonia (p<0.001) and anxiety (p=0.003). In addition, a healthier diet was associated with being female (p=0.030), having a higher level of education (p=0.008) and country of re...

“Introduction: This study aimed to determine the relationship between symptoms of anxiety and/or anhedonia (inability to feel pleasure) and diet quality during confinement due to COVID-19 in rural populations in Latin America. Methods: This was a multicentric, cross-sectional study. An online survey was applied, which included the Beck Anxiety Inventory, Snaith-Hamilton Pleasure Scale for assessing the presence of anhedonia, the Food Intake Questionnaire and sociodemographic questions. Results: The study included 10 552 people from 11 countries; 708 participants were living in rural areas. More than half of the participants were quarantined at the time of the survey. Diet quality was inversely associated with anhedonia (p<0.001) and anxiety (p=0.003). In addition, a healthier diet was associated with being female (p=0.030), having a higher level of education (p=0.008) and country of re...

“Background and objectives: The confnement by COVID-19 has afected the food chain and environments, which added to factors such as anxiety, frustration, fear and stress have modifed the quality of the diet in the population around the world. The purpose of this study was to explore diet quality during the COVID-19 pandemic in 11 Latin American countries. Methodology: Multicentric, cross-sectional study. An online survey was applied to residents of 11 Latin-American countries, during April and May 2020, when confnement was mandatory. Diet quality was evaluated using a vali‑ dated questionnaire. Result: 10,573 people participated in the study. The quality of the food by country shows that Colombia presented the best quality, while Chile and Paraguay presented the lowest. When comparing the overall results of diet quality by gender, schooling and age, women, people with more schooling a...

“Background and objectives: The confnement by COVID-19 has afected the food chain and environments, which added to factors such as anxiety, frustration, fear and stress have modifed the quality of the diet in the population around the world. The purpose of this study was to explore diet quality during the COVID-19 pandemic in 11 Latin American countries. Methodology: Multicentric, cross-sectional study. An online survey was applied to residents of 11 Latin-American countries, during April and May 2020, when confnement was mandatory. Diet quality was evaluated using a vali‑ dated questionnaire. Result: 10,573 people participated in the study. The quality of the food by country shows that Colombia presented the best quality, while Chile and Paraguay presented the lowest. When comparing the overall results of diet quality by gender, schooling and age, women, people with more schooling a...