The purpose of the research is to describe the perception that students show regarding the climate of the university classroom, the population and study sample is composed of students of the Secondary School Professional School, the type of research is descriptive, the design is descriptive, diagnostic , the technique used is the survey, the questionnaire is called university classroom climate, being of the licker type, which consists of a set of assertive items expressed in categories that were answered by the respondents. The information collected in statistical tables and graphs is systematized, using the percentage measure in its reading and interpretation, considering the scales of agreement (A) and completely in agreement (CA), the results show us that regarding the dimensions: cohesion, satisfaction , personalization, task orientation, innovation, evaluation and class management, ...

La investigación busca entender y analiza las causan que generan la deserción universitaria en los programas para gente que trabaja de las escuelas de negocios de las universidades privadas de Lima Metropolitana; para lo cual se estudio el entorno de los estudiantes, recogiendo informacion tanto de profesionales dedicados a la educacion en estos programas, como a estudiantes que han abandonado la carrera y estudiantes que lograron culminarla satisfactoriamente. Estos resultados fueron revisados y comparados para mostrar la relacion y diferencias de las distintas fuentes consultadas, estas en su mayoria fueron primarias, estas evaluaciones permiten observar los distintos factores por los cuales los estudiantes de estos programas desertan de los mismos, las motivaciones y problemas que surgen en el transcurso de su estancia en la universidad. El capitulo uno de la investigacion se plante...

En Perú como en otros países en vía de desarrollo el incremento de enfermedades relacionadas directa o indirectamente con la nutrición ha aumentado de forma exponencial, esto es debido a muchos factores, pero principalmente a la falta de educación nutricional y buenos hábitos alimentarios, también hay que sumarle factores importantes como el grado de instrucción de la madre, la economía del hogar, el lugar de origen y el sedentarismo que no hace otra cosa que agravar nuestra condición. Podríamos decir datos estadísticos como el de la anemia en gestantes con un 26% a pesar de que casi el 100% son suplementadas, no basta con el consumo del suplemento también es muy importante conocer cuáles son los alimentos ricos en hierro y cuales son aquellos que ayudan e impiden su absorción, todo esto se conoce básicamente en la consejería con educando nutricional y la instauración d...

El propósito de la investigación fue determinar la precisión de longitud de trabajo de un localizador apical de quinta generación en primeros molares superiores permanentes. Se emplearon 30 primeras molares superiores permanentes. Se agruparon en grupos de 3 para ser sumergidas verticalmente en alginato hasta el límite amelocementario y se efectuaron las mediciones con el localizador apical electrónico Woopex I en cada conducto radicular utilizando 3 diferentes limas k #10. Posteriormente se determinó la longitud real del diente utilizando un esteromicroscopio con un aumento de x20 para observar el foramen apical y ser medidos con un vernier electrónico. Se encontró que el promedio de longitud real es ligeramente mayor que longitud de trabajo medida con el localizador apical (14,92 y 14,90 respectivamente). Se encontró evidencia estadística para afirmar que la longitud promedi...

Se analiza el efecto de los servicios brindados por el Ministerio de Desarrollo Agrario y Riego (MIDAGRI) sobre el valor agropecuario, utilizando datos de la Encuesta Nacional Agropecuaria (ENA). El estudio evalúa intervenciones como la capacitación, la asistencia técnica y el acceso al crédito, tanto de forma individual como combinadas en paquetes integrales. Asimismo, se segmenta el análisis por grupos de cultivo, dada la diversidad de características productivas y geográficas entre ellos. Los resultados muestran diferencias importantes en el efecto de los servicios según el tipo de cultivo. En el caso de los tubérculos, el acceso al crédito es la única intervención con efectos significativos. En cambio, en cultivos que requieren un mayor grado de especialización, como frutas y granos, cobran mayor relevancia la asistencia técnica y las intervenciones combinadas. Estos ha...

La regulación económica surge de la necesidad de corregir fallas de mercado que afectan el bienestar de la sociedad. En el caso de los monopolios naturales, se regulan servicios que son de vital importancia para sus usuarios, y en los que simultáneamente la empresa tiene demasiado poder de mercado. El presente trabajo se centra en la regulación mediante tarifas, y el efecto que estas tienen en las decisiones de las empresas con respecto a su eficiencia y estructura de costos. Para esto se acotan los métodos de tarifación a cuatro: Tasa de retorno, precio máximo, empresa modelo eficiente y competencia referencial. Se estudian diversos casos de la región latinoamericana con el fin de tener condiciones similares entre las industrias reguladas, para hacer un balance de los resultados en estos países. Se busca validar si esta contribuyó a una reducción de los costos de la empresa m...

No presenta resumen

The aim of this study was to evaluate the reproductive performance of dairy cows with delayed uterine involution under hormonal treatment with estradiol cypionate (CE2) and estradiol benzoate (BE2) between 36 and 49 days after parturition and a group of dairy cows with normal uterine involution. A total of 349 dairy cows with delayed uterine involution and 127 dairy cows without delayed uterine involution from a commercial farm in Lima, Peru were used. The BE2 treatment consisted of the i.m. application of 3 doses of 5 mg at 2-day interval and the CE2 treatment consisted of the i.m. application of 2 doses of 4 mg at 4-day interval. The parameters evaluated were calving-to-conception interval (IPC), services per conception (NSC), conception rate at first service (P1S) and the pregnancy rate at 200 days (P200D). In addition, the likelihood of get pregnant according to the days in lactation...

The aim of this study was to evaluate the reproductive performance of dairy cows with delayed uterine involution under hormonal treatment with estradiol cypionate (CE2) and estradiol benzoate (BE2) between 36 and 49 days after parturition and a group of dairy cows with normal uterine involution. A total of 349 dairy cows with delayed uterine involution and 127 dairy cows without delayed uterine involution from a commercial farm in Lima, Peru were used. The BE2 treatment consisted of the i.m. application of 3 doses of 5 mg at 2-day interval and the CE2 treatment consisted of the i.m. application of 2 doses of 4 mg at 4-day interval. The parameters evaluated were calving-to-conception interval (IPC), services per conception (NSC), conception rate at first service (P1S) and the pregnancy rate at 200 days (P200D). In addition, the likelihood of get pregnant according to the days in lactation...

Gentrification is an urban phenomenon that displaces the original inhabitants of a neighborhood due to regeneration processes. In this analysis carried out in the historic center of the heritage city of Cuenca, the beginning of the process does not necessarily respond to a significant transformation of the architecture. It has been proven that the phenomenon arises invisibly due to changes in the demographic composition of the neighborhood. The methodology of this research requires the correlation of census data for each minimum applicable unit known as a block. This information is contrasted with historical photographs available on the Google platform. The significant contribution to the concept of gentrification results in a method that allows identifying and predicting the phenomenon, more important than its visual-late diagnosis.

The aim of this study was to evaluate the alteration of the cellular components of the peritoneal lavage and to characterize the cicatricial remodelling, at the macro and microscopic level, produced by the experimental use of bovine pericardium xenograft (XPB) not treated as a lining of the end to end-jejunal terminal anastomosis in a canine model. Nine canines between 4 and 6 years of age, 15-30 kg of weight, and both sexes were randomly distributed in three experimental groups (A, B and C for a second celiotomy at 5, 10 and 30 days post-surgery) of three animals each, to which an untreated XPB was placed as a lining of the jejunal enterectomy. The results of the analysis of the cellular components of the peritoneal fluid showed a significant increase in lymphocytes, macrophages and eosinophils 30 days after the surgery and to a lesser extent 10 and 5 days after the intervention. In the...

The aim of this study was the evaluate the frequency and morphometric characterization of ectopic Fasciola hepatica in the lung. For this, 2066 lungs of cattle were evaluated in the municipal abattoir of Cajamarca, Peru, between July and August 2018. The lungs presenting macroscopic lesions were reviewed to determine the presence or absence of ectopic Fasciola hepatica. The frequency of erratic pulmonary fasciolosis was 3.68 ± 0.8%. Morphometrically, the ectopic Fasciola hepatica maintains a foliaceous shape, with pale pinkish to grey-brown coloration, measuring 10.36 ± 3.44 mm long and 4.31 ± 0.97 mm wide, and without evidence of oviposition.

The aim of this study was to evaluate the alteration of the cellular components of the peritoneal lavage and to characterize the cicatricial remodelling, at the macro and microscopic level, produced by the experimental use of bovine pericardium xenograft (XPB) not treated as a lining of the end to end-jejunal terminal anastomosis in a canine model. Nine canines between 4 and 6 years of age, 15-30 kg of weight, and both sexes were randomly distributed in three experimental groups (A, B and C for a second celiotomy at 5, 10 and 30 days post-surgery) of three animals each, to which an untreated XPB was placed as a lining of the jejunal enterectomy. The results of the analysis of the cellular components of the peritoneal fluid showed a significant increase in lymphocytes, macrophages and eosinophils 30 days after the surgery and to a lesser extent 10 and 5 days after the intervention. In the...

The aim of this study was the evaluate the frequency and morphometric characterization of ectopic Fasciola hepatica in the lung. For this, 2066 lungs of cattle were evaluated in the municipal abattoir of Cajamarca, Peru, between July and August 2018. The lungs presenting macroscopic lesions were reviewed to determine the presence or absence of ectopic Fasciola hepatica. The frequency of erratic pulmonary fasciolosis was 3.68 ± 0.8%. Morphometrically, the ectopic Fasciola hepatica maintains a foliaceous shape, with pale pinkish to grey-brown coloration, measuring 10.36 ± 3.44 mm long and 4.31 ± 0.97 mm wide, and without evidence of oviposition.

The aim of this study was to determine the factors that affect pregnancy in recipient females of embryos produced in vitro under high altitude conditions. The study was carried out at the Universidad Nacional del Altiplano (UNA), located in Puno, Peru, at an altitude of 3970 m. 50 recipient females (nulliparous, primiparous and multiparous) Brown Swiss were used. Ovaries were collected from cows at a local slaughterhouse and taken to the UNA animal reproduction laboratory, where the oocytes were collected, and in vitro maturation and fertilization, culture and embryo evaluation were carried out. The transport time to the laboratory was 2 to 3 h. Quantitative factors such as body condition score (CC), diameter of the corpus luteum (CL) and number of parities, and qualitative factors such as the place of deposit of the embryo (right or left horn) and embryo quality, were evaluated using th...