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1
artículo
Publicado 2020
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El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado.
2
tesis de maestría
Publicado 2025
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El presente trabajo de investigación busca realizar una consultoría para mejorar el actual proceso de reclutamiento masivo de mano de obra directa de una de las empresas más grandes del sector construcción en Perú. Para ello, se evaluó el proceso “as is” identificándose 3 principales etapas en el mismo: contacto telefónico inicial por parte de los reclutadores para recaudar información básica del prospecto; evaluación de la data recopilada en el primer paso para identificar posibles contrataciones; finalmente concluye con el proceso de selección y contratación. La consultoría en la que se basa este trabajo busca automatizar específicamente el primer punto del proceso antes descrito mediante el uso de callbots. De esta forma, el Callbot estará a cargo del primer contacto telefónico y levantamiento de información básica, así como el registro de esta. La finalidad es...
3
artículo
Publicado 2024
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The objective was to relate eating habits with the body mass index and physical activity of university students. 237 students from the National University Federico Villarreal and 163 students from the National University of Engineering were surveyed in 2022, using an online form whose items were distributed in demographic data to characterize the students and their eating behavior (EB). Th e Likert scale was used. Th e data was analyzed with Microsoft Offi ce Excel updated to 2023. It was found that the average Body Mass Index (BMI) of the students is 24.5, falling within the normal classifi cation, they tend to eat more foods prepared at home, the Nutritional quality is subject to accessibility due to time and money; they usually consume lunch, omitting other meals. A low percentage considers they have Good eating habits. For the study group, physical activity was reduced during the dev...
4
artículo
Publicado 2024
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The objective was to evaluate the effect of the COVID-19 pandemic on the eating habits and physical activity of students from the Federico Villarreal National University. For this purpose, a structured multiple-choice questionnaire was distributed via WhatsApp and email, which was subdivided into the sections of Generalities, Physical Activity and Eating Habits (HA), and the data was processed with Excel Microsoft 365. 215 people were surveyed, it was determined that physical activity during social isolation (SA) changed from vigorous to sedentary, with men reducing their practice of exercises that required greater physical effort. It was determined that the average frequencies before the pandemic / during social isolation / current for men were: 2,0 / 1,9 / 2,0 days respectively and for women 1,8 / 1,9 / 1,8 days, the intake of food prepared at home increased, varying the composition an...
5
artículo
Publicado 2010
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Objectives: To compare body mass index (BMI) with body circumferences in 4 to 10 year-old Brazilian children. Design: Descriptive correlational type study. Setting: Universidad Estatal de Campinas, Sao Paulo, Brazil. Participants: Children 4 to 10 year-old. Interventions: We selected in a probabilistic (stratified) manner a total of 517 children both sexes, 256 boys and 261 girls. We evaluated anthropometric measurements of body weight (kg), height (cm), BMI [BMI = weight (kg)/height (m)2] and relaxed mean arm girth, thigh and calf (cm). For data analysis descriptive statistics were used for arithmetic mean (X), standard deviation (SD) and Pearson’s coefficient correlation product moment (r) as well as to infer step by step the stepwise multiple regression analysis. Main outcome measures: Correlation of body mass index with body circumferences. Results: BMI had high correlation coeffic...
6
tesis doctoral
Publicado 2021
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Metal mining is one of the economic pillars of the Peruvian economy. Peru is the main producer of gold, zinc, lead, and tin in Latin America and the second largest producer of copper, silver, and zinc worldwide. Despite its economic importance, mining has also left a plethora of Mining Environmental Liabilities (MEL) whose inadequate waste management represents a risk for both the environment and human health and is a common trigger of social problems. The Cajamarca región is the second región in Peru in terms of the number of MEL sites with the majority of them located in the Hualgayoc district. The goal of the PhD project is the assessment of the environmental impact of MEL in the Peruvian Andes using as an example two post-mining sites in the Hualgayoc district. This evaluation includes the study of soils and native plant species in terms of their metal accumulation potential and th...
7
tesis doctoral
Publicado 2021
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Metal mining is one of the economic pillars of the Peruvian economy. Peru is the main producer of gold, zinc, lead, and tin in Latin America and the second largest producer of copper, silver, and zinc worldwide. Despite its economic importance, mining has also left a plethora of Mining Environmental Liabilities (MEL) whose inadequate waste management represents a risk for both the environment and human health and is a common trigger of social problems. The Cajamarca región is the second región in Peru in terms of the number of MEL sites with the majority of them located in the Hualgayoc district. The goal of the PhD project is the assessment of the environmental impact of MEL in the Peruvian Andes using as an example two post-mining sites in the Hualgayoc district. This evaluation includes the study of soils and native plant species in terms of their metal accumulation potential and th...
8
tesis de grado
Publicado 2023
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El presente Trabajo de Suficiencia Profesional (TSP), aborda la propuesta de mejora del proceso de cobranzas de una distribuidora y comercializadora de productos de consumo masivo en la zona del nororiente peruano. El objetivo de este estudio es analizar y plantear la alternativa de solución más idónea a la problemática referida por pérdidas económicas en el proceso de cobranza por parte del personal. Como solución se propone la implementación del Programa de fortalecimiento del control interno basado en el modelo teórico del Sistema de Control Interno (COSO III). Este trabajo de investigación académica contiene tres capítulos. En la parte inicial, se presenta el contexto, la descripción y la situación problemática de la organización. En la segunda parte, se desarrolla el marco teórico-conceptual, se exponen los antecedentes de la investigación y se brinda la justificac...
9
artículo
Publicado 2022
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Polyribosyl-ribitol-phosphate (PRP) from Haemophilus influenzae type b (Hib) is an active immunizing molecule used in the production of the vaccine against H. influenzae, and industrial production could contribute to satisfying a world demand especially in developing countries. In this sense, the aim of this study was to establish a scale-up process using the constant oxygen mass transfer coefficient (kLa) such as the criterion for production of PRP in three different sizes of bioreactor systems. Three different kLa values (24, 52 and 80 h−1) were evaluated in which the biological influence in a 1.5 L bioreactor and 52 h−1 was selected to scale-up the production process until a 75 L pilot-scale bioreactor was achieved. Finally, the fed-batch phase was started under a dissolved oxygen concentration (pO2) at 30% of the saturation in the 75 L bioreactor to avoid oxygen limitation; the p...
10
artículo
Publicado 2022
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Polyribosyl-ribitol-phosphate (PRP) from Haemophilus influenzae type b (Hib) is an active immunizing molecule used in the production of the vaccine against H. influenzae, and industrial production could contribute to satisfying a world demand especially in developing countries. In this sense, the aim of this study was to establish a scale-up process using the constant oxygen mass transfer coefficient (kLa) such as the criterion for production of PRP in three different sizes of bioreactor systems. Three different kLa values (24, 52 and 80 h−1) were evaluated in which the biological influence in a 1.5 L bioreactor and 52 h−1 was selected to scale-up the production process until a 75 L pilot-scale bioreactor was achieved. Finally, the fed-batch phase was started under a dissolved oxygen concentration (pO2) at 30% of the saturation in the 75 L bioreactor to avoid oxygen limitation; the p...
11
artículo
Publicado 2018
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We wish to thank Centro de Referencia para Lactobacilos (CERELA-CONICET) collection for supplying the strains. We would also like to thank IBRAC and Sealed Air-Brazil that provided the additives and packaging, respectively. M. Almeida received the support of the Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES), PhD scholarship from Brazil and E. Saldaña received the support of the “Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - CONCYTEC” from Perú (CIENCIACTIVA programme, PhD scholarship contract agreement No. 104-2016-FONDECYT). This study was financially supported by the São Paulo Research Foundation (FAPESP) Project No.2012/07113-2; project AGL2012-32146 from MINECO (Spain) and PIP2011-0100406 and PIP2015-0530 from CONICET.
12
capítulo de libro
Publicado 2019
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There are several reasons that explain why community and citizens’ media are so widespread and popular in Latin America. This chapter offers a series of short vignettes set in Colombia that describe the intricate processes that developed there since the 1920s and simultaneously elsewhere across Latin America, spreading the notion that agency and participation are everyone’s right. These vignettes highlight why understanding community and citizens’ media in Latin America requires recognizing the long history of radical politics in the region and the wide dissemination of leftist ideologies that popularized notions of popular participation and political agency as rights. The chapter also brings into dialogue the work of Peruvian scholar Rosa María Alfaro, who was instrumental in transforming communication scholarship in Latin America and is an early example of citizens’ media in L...
13
artículo
Publicado 2023
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The objective of this work was to quantify either physical and chemical attributes of the whole along with grounded seeds from Castilla pumpkin (Cucurbita moschata Duchesne) and bitter pumpkin (Apodanthera undulata A. Grey). The parameters data for whole seeds of both pumpkin varieties were; physical dimensions, internal friction, external friction and particle size, while for their ground compound were; electric conductivity, soluble protein, total protein, carbohydrates, oil concentration and main minerals. Collected data is fundamental for generating technology for the productive processes and an aid for more efficient use of the entire organic mass, when new raw matter is obtained for separate processing areas, to diversify readily consumption produce and increasing productivity of agroindustrial mechanization. It was concluded that pumpkin crop raised all over this farming region of...
14
artículo
Publicado 2023
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The objective of this work was to quantify either physical and chemical attributes of the whole along with grounded seeds from Castilla pumpkin (Cucurbita moschata Duchesne) and bitter pumpkin (Apodanthera undulata A. Grey). The parameters data for whole seeds of both pumpkin varieties were; physical dimensions, internal friction, external friction and particle size, while for their ground compound were; electric conductivity, soluble protein, total protein, carbohydrates, oil concentration and main minerals. Collected data is fundamental for generating technology for the productive processes and an aid for more efficient use of the entire organic mass, when new raw matter is obtained for separate processing areas, to diversify readily consumption produce and increasing productivity of agroindustrial mechanization. It was concluded that pumpkin crop raised all over this farming region of...
15
tesis de grado
Publicado 2023
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Este trabajo de suficiencia profesional está basado en una propuesta de mejora para aumentar el nivel de servicio en una empresa del sector de consumo masivo. Se obtuvo la data necesaria para analizar los principales motivos los cuales fueron la rotura de stock y el error en el pronóstico de ventas. Mediante la investigación de técnicas, herramientas y metodologías se planteó el modelo de mejora. Se seleccionaron cuatro skus de la categoría de cereales, los cuales presentaron mayor venta dentro del universo de productos para plasmar los resultados de la implementación. A través de la gestión por procesos, se mejoró el tiempo de traslado de mercadería entre la planta productiva hacia los almacenes, y se logró llegar al objetivo del indicador de eficacia de traslados (98%). Con el método de inventario EOQ, se obtuvo mejoras en la disponibilidad de stock, el cual se ve refleja...
16
tesis de grado
Publicado 2024
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El presente estudio tuvo por objetivo relacionar los factores de riesgo sobre la salud cardiovascular y el consumo de alimentos procesados en 270 usuarios de un mercado de Tablada de Lurín con edades entre 18 y 89 años varones y mujeres. Para ello, se seleccionó un método hipotético-deductivo, enfoque cuantitativo, tipo básico, nivel correlacional y diseño no experimental transversal; empleando un cuestionario de dos partes que buscan evaluar las variables señaladas y que fueron validados por un grupo de expertos. Los hallazgos indicaron que el consumo de alimentos procesados se relación con los factores: índice de masa corporal, presión sistólica, diastólica, circunferencia abdominal y estilo de vida saludable. Se concluyó que un incremento de alimentos procesados en la dieta diaria de los usuarios conllevará un incremento del índice de masa corporal, presión sistólica...
17
tesis de grado
Publicado 2015
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The. deve!opment of this currcnt ínvesti~1ation requests conducting evaluations and techno!ogical parameters controls during the elaboirat1on of the drink as well as physical, chemicaI analyzes on raw materials _as well as microbiological analyzes and evaluation of final product quality attributes. Because of the large production :>f banana in the San and the large daily consumption of this product, we saw the necessity to increase the shelf life and nutritional value of this food, elaborating an instant and enriched drink with sugar and fresh milk, seeking to improve the feGding of the population, at the same time, increasing demand of this agroindustrial farming, and €~ncouraging grow of banana plant to improve the economic incomes of of the majority of farmers dedicated to this crop. This instant drink is an mixture 1~; a mixture which when reconstituted by simple dilution in bni~e...
18
tesis de maestría
Publicado 2023
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Aún con los constantes avances en la industria de la construcción, existen puntos clave que continúan siendo relevantes en la toma de decisiones para el diseño y ejecución de un proyecto. Puntos como la selección de un suelo apropiado para cada tipo de proyecto. Ahora bien, uno de los principales impedimentos está relacionado a no poder obtenerse un suelo adecuado que permita garantizar la estabilidad y durabilidad que se requiere. Si a esta problemática le añadimos que, la constante demanda en infraestructura a nivel mundial exige a su vez un incremento en la demanda del hormigón, cuya producción contribuye en la emisión de gases de efecto invernadero y alternativas como la implementación de impresión 3D aplicada a la industria de la construcción introduce varios retos de ingeniería desde el punto de vista de los materiales. La búsqueda de una manera apropiada de estabi...
19
tesis de grado
Publicado 2007
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The present investigation work, had for purpose to increment de blancmang's proteic contents utilizing wooden-bean flour (Cajanus cajan) and this way impulsing production and this one use leguminous. Previously to the delicacy elaboration carne true tha analyses correspondent proximales that went in order to the wooden bean: 19.12%, 1.49%, 3.78%, 1021%, 7.82% of protein, fat, ash, humidity and fiber, respectively, and went in order to the milk: 2.95%, 3.70%, 87.50%, 1.80%, 6.7 y 1.030 Kg/m 3 of protein, fat, humidity, acidity, pH and density respectively. The flour's elaboration had following sequence: wooden-bean -+ weighed -+ cleanliness and selection -+ scalded -+ dried -+ willing -+ sieved -+ wooden-bean flour, and the 68% performance was obtained. After the delicacy in his distinct formulations was come from to the elaboration, and if was the process's sequence: Fresh milk -+ pasteu...
20
tesis de grado
Uso de consideraciones científicas para predicción dimensional de máquina secadora de abono orgánico
Publicado 2016
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In this research it is to select and find the main dimensions of a dryer for organic fertilizer, produced by the company BIOFERT SAC, from a Lagrangian perspective developed in previous studies, which combine heat transfer and mass movement of a individual particle through the dryer. In the first part of the study, a selection process dryer develops, if it is true not only a dryer is right, will choose whichever is more suitable for the type of material to be dried, then a thermodynamic analysis develops dryer to obtain a mass flow and air properties required for drying certain amount of moist product. an algorithm that associates the physical properties of the material with the mass transfer and heat, and has as output the main dimensions of drier (such as diameter and length) is then established. the EES (Engineering Equations Solver) software is a tool widely used in the area of therm...
