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1
artículo
This qualitative research analyzes Decree Inter Mirifica (1963), which states the responsibility of Mass Media and its relation to Culture, Science, Multiculturalism, as well as the technologies of the information, Internet, Digital Journalism and historicalecological Communication Perspective, concluding that Inter Mirifica expresses the essence of Media: its use requires righteousness, prudence and wisdom.
2
artículo
Enjoyment, rhythm and music are constitutive elements of Hispanic Caribbean imagery and identity. The interpretation of two novels from the second half of the 20th century, Arturo, la estrella más brillante (1984) [Arthur, The Brightest Star] by Reinaldo Arenas and La guaracha del Macho Camacho (1976) [Macho Camacho’s Beat] by Luis Rafael Sánchez, shows how this legacy can interact with diverse political and social contexts. For the former, from the experience of sexual dissidence and the repression of the state apparatus of post-revolutionary Cuba, rhythm becomes a vehicle to channel the imagination and seek creative freedom; for the latter, traditional music, mediated by mass culture, allows an explosion of collective enjoyment that energizes Puerto Rican society of the 1970s, marked by stagnation.
3
artículo
Pregnancy and lactation are periods of high calcium demand for skeletal growth and maternal milk production. Approximately 25-30 g of calcium are transferred to the fetus during pregnancy, and breast-feeding mothers secrete 200-240 mg/day of calcium in breast milk every day. During pregnancy, major physiologic adaptations include increased both calcium intestinal absorption and rate of maternal bone turnover; during lactation, there is a contribution of renal calcium conservation, but temporary maternal bone demineralization is the main mechanism to meet calcium requirements. Data on bone mineral density assessed by dual energy x-ray absortiometry (DXA) are sparse mainly due to concern about potential risk of radiation exposure to the fetus. Other radiation-free techniques like quantitative ultrasound have been used to assess maternal bone mass changes during pregnancy. Maternal bone los...
4
tesis de grado
El servicio de VoIP está experimentando un crecimiento acelerado, impulsado por el ancho de banda disponible y la calidad del servicio que ofrece a los usuarios. El objetivo de la presente investigación es mejorar la calidad de comunicación de voz en la Universidad Nacional “San Luis Gonzaga” utilizando la Telefonía VoIP. Se aprovecha el modelo TCP / IP y las plataformas de software de código abierto, que facilitan la integración del servicio VoIP en una red informática existente o en un nuevo diseño de red. Además, el servicio de VoIP proporciona características, ventajas y desventajas que pueden contribuir a optimizar la comunicación dentro de la entidad. Por otro lado, el diseño de una nueva red de computadoras para VoIP o la utilización de la infraestructura de telecomunicaciones existente permite determinar el método más adecuado a seguir, el tipo de red más acce...
5
artículo
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...
6
artículo
The Mass spectroscopy analysis of some types of Piscos Peruvians and two adulterated samples, prepared by an addition of sugar to the skins and the other by adding sugar-cane alcohol, have reported interesting evidence of a difference in composition at the adulterated samples. They are compounds such as furfural, the acetate and others, which have not been detected in the pisco prepared correctly and what could be attributed as products of the fermentation of sucrose, sugar, which should not be in the musts Grape where there are only fructose and glucose. The developed method allows not only the correct identification of the components of our Pisco, which once established, could be a way that allows to differentiate it from other spirits and pisco adulterated.
7
artículo
The Mass spectroscopy analysis of some types of Piscos Peruvians and two adulterated samples, prepared by an addition of sugar to the skins and the other by adding sugar-cane alcohol, have reported interesting evidence of a difference in composition at the adulterated samples. They are compounds such as furfural, the acetate and others, which have not been detected in the pisco prepared correctly and what could be attributed as products of the fermentation of sucrose, sugar, which should not be in the musts Grape where there are only fructose and glucose. The developed method allows not only the correct identification of the components of our Pisco, which once established, could be a way that allows to differentiate it from other spirits and pisco adulterated.
8
tesis de grado
The experimental research will be carried out in a consumption company in Perú. The main problem is the lack of traceability and pallet management in their distribution centers, which leads to an annual loss of 175 thousand dollars. The methodology used was the SLP, particularly the matrix of quantity, distance and effort with the objective of carrying out an adequate layout design and the implementation of a barcode for a correct management and tracking of the pallets. The research will be carried out in distribution center D, reducing the percentage of lost pallets by 18% and showing a savings of 32% in the supply of indirect materials at least annually.
9
artículo
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...
10
tesis doctoral
This thesis covers the study of one-loop quantum corrections to the light neutrino masses. In the first part, we examine the extension of the standard model with right-handed neutrinos, where the Seesaw type I is present, allowing accessible masses for experimental searches. However, considering the corrections to the light neutrinos masses requires the pairs of heavy neutrinos to appear as pseudo Dirac particles, implying a suppression of the LNV parameters. In the second part, the supersymmetric contributions are analyzed in order to relax the lepton number violation (LNV) restrictions and achieve a greater difference between the heavy neutrino masses, as well as large mixings. When analyzing the destructive interference between the supersymmetric (which we describe as reducible and irreducible) and non-supersymmetric contributions, we found parameter regions where cancellations occur,...
11
tesis doctoral
This thesis covers the study of one-loop quantum corrections to the light neutrino masses. In the first part, we examine the extension of the standard model with right-handed neutrinos, where the Seesaw type I is present, allowing accessible masses for experimental searches. However, considering the corrections to the light neutrinos masses requires the pairs of heavy neutrinos to appear as pseudo Dirac particles, implying a suppression of the LNV parameters. In the second part, the supersymmetric contributions are analyzed in order to relax the lepton number violation (LNV) restrictions and achieve a greater difference between the heavy neutrino masses, as well as large mixings. When analyzing the destructive interference between the supersymmetric (which we describe as reducible and irreducible) and non-supersymmetric contributions, we found parameter regions where cancellations occur,...
12
tesis de grado
El presente proyecto de investigación tiene como objetivo proponer una solución de Red Privada Virtual para mejorar el servicio de comunicación en las tiendas Mass para la empresa Supermercados Peruanos S.A. Esta investigación fue realizada en base a la metodología PPDIOO (Preparar, Planificar, Diseñar, Implementar, Operar, Optimizar) de Cisco Systems, lo cual nos proporcionará los procesos, habilidades, técnicas necesarias para llevar acabo la propuesta de implementación. La mejora del Servicio de Comunicación en las tiendas Mass se podrá constatar en el enlace virtual para enlazar dos o más sucursales geográficamente distanciadas. Se usó como referencia el Modelo OSI para la interpretación de capas de Red. Nivel 3 (Red): Tiempos de respuesta del enlace: Se verá reflejada en milisegundos, se denotará un notorio tiempo de repuesta mucho más bajo con el actual enlace que...
13
artículo
Introduction: In order to determine the degree of biological maturation in rodents it is necessary to apply non-invasive and invasive methods, for which studies covering different strains of rats need simple procedures to control the confounding effects of biological maturation they may cause. Objectives: To determine from body mass growth velocity of Wistar male rats and to propose linear regression equations to predict growth velocity peak (GVP). Design: Longitudinal cohort study. Institution: State University of Campinas, São Paulo, Brazil, Department of Pharmacology. Methods: From 101 rats 25 male Wistar rats 21 days old were selected in probabilistic-random (randomized tables). Body mass (g) was assessed every week until 16 weeks of life. For statistical analysis, descriptive statistics were used in arithmetic average (X) and standard deviation (SD). To determine significant differ...
14
tesis de maestría
La investigación titulada endomarketing en el compromiso de los colaboradores de las tiendas Mass en el distrito de Santiago de Surco. Lima, 2017 tuvo como objetivo determinar cómo influye el endomarketing en el compromiso de las tiendas Mass en el distrito de Santiago de Surco. Lima, 2017. La investigación se desarrolló con el enfoque cuantitativo de tipo básica, de diseño no experimental de tipo transversal- correlacional causal, apoyándose en el método hipotético deductivo; la población estuvo constituida por 165 colaboradores de las tiendas Mass y la muestra se trabajó con el total de la población por ello la muestra fue de tipo censal. La técnica que se utilizó para la recolección de datos fue la encuesta y el instrumento fue el cuestionario. Para el procesamiento de los datos se utilizó el programa SPSS versión 21; en el análisis de los datos se realizó de manera...
15
tesis de grado
El presente trabajo muestra un método alternativo para la calibración de pesas, se presentan los modelos físico y matemático de la medición del valor de masa convencional para luego realizar la calibración de una pesa de 1 kg de clase F2. El método presentado propone la inclusión de cargas adicionales con la intención de mejorar la aproximación de lectura de una balanza y poder usarla para la calibración de una pesa. Finalmente se realiza la comparación de los resultados obtenidos usando el método presentado con los resultados obtenidos haciendo uso de un método convencional de calibración.
16
tesis de grado
La carencia de servicios básicos como agua potable, para zonas como Cajamarquilla, es un problema social que se debe solucionar. Ante esta situación existen proyectos para dotar de servicios de agua a la zona, que por la geografía que presentan se utilizarán reservorios apoyados en los cerros aledaños. El procedimiento de diseño de un reservorio circular de concreto para la zona, servirá como guía para futuros proyectos. Siendo el objetivo de la investigación proponer criterios y un método adecuado para diseñar la estructura de un reservorio de concreto armado que cumplan con los parámetros de la propuesta de norma E030 2014 para la zona de Cajamarquilla, dada la poca información que existe de estos a pesar de ser de uso muy común en nuestro país. El tipo de la investigación es cualitativo, correlacional y de diseño experimental puro, con el fin de obtener resultados cer...
17
tesis de grado
El objetivo de la investigación fue determinar la relación entre el marketing mix y la fidelización de clientes de la tienda Mass en Villa El Salvador. La investigación es de tipo descriptiva, nivel correlacional, diseño no experimental de corte transversal y enfoque cuantitativo. La población fue de 385 clientes. Los instrumentos para medir las variables fueron encuestas virtuales y contaban con 38 ítems para la primera variable y 36 ítems para la segunda variable, los instrumentos fueron validados por expertos tanto temático como metodológico de la Universidad Autónoma del Perú, los resultados concluyeron que los instrumentos son confiables puesto que la prueba de estadística alfa de Cronbach dio una confiabilidad de 0.964 para la primera variable y 0.951 para la segunda variable. Se aplicó el coeficiente de correlación Rho de Spearman dando como resultado 0.502 con un n...
18
tesis de grado
El objetivo general contempla analizar la forma estadística en que el compromiso organizacional se relaciona con la productividad del personal de las tiendas Mass en Villa El Salvador. La investigación se basó en una metodología básica, adoptando un diseño no experimental de alcance correlacional. La población objeto de estudio estuvo compuesta por 110 colaboradores, seleccionando 86 para una muestra no probabilística. Los resultados indicaron un valor de ,869 a través del Rho y un p valor de ,000 en la prueba no paramétrica, lo que propició la validación del supuesto de investigación, confirmando que las variables si estan asociadas en el contexto de las tiendas. Finalmente, los alcances obtenidos permitieron respaldar la conexión estrecha entre los constructos analizados, considerando que el compromiso de la empresa es considerado como una estrategia efectiva que involucr...
19
artículo
Objective: To determine the incidence of overweight and obesity according to body mass index and lipid profile in Pharmacy and Biochemistry students of the Jorge Basadre Grohmann National University, Tacna. Material and methods: Observational, descriptive and correlational study. Fasting blood sample was taken for laboratory analysis of lipid perfyl and glycemia, and weight and height were evaluated with calculation of body mass index to a non-probabilitic sample of 38 students of Pharmacy and Biochemistry of the Health Sciences Faculty. The data were collected on a data sheet and processed in the statistical software SPSS v19. Descriptive statistics were used for the analysis. The square Chi test was used to establish the relationship between the variables, with a confidence level of 95 % and asymptotic significance of <0.05. Results: The stude...
20
artículo
The phenomenon of mass transfer during osmotic dehydration and convective drying of tomato halves (Solanum lycopersicum L.) was carried out 1) using sucrose and salt as solutes; and 2) by fitting the Peleg and Page equations to the experimental data. The fruit was cut into halves and its seeds and placenta were removed. It was osmotically dehydrated with solutions: 10.8% 18% and 30% 50%, (w/v), of salt and sucrose respectively at a temperature of 25 °C. Subsequently, the resulting samples were subjected to a convective drying process by forced air in a tunnel at temperatures of: 50; 70 and 90ºC. Determining the weight loss of the samples, the solids gain, obtaining parameters from the experimental models of Peleg and Page with correlation levels of R2 ≥0.9894 for the proposed models.