El siguiente trabajo de tesis, surge a raíz de los problemas en la operación en estado estacionario que presenta el SER Chumbivilcas (Sistema Eléctrico Rural Chumbivilcas), que es suministrado por la radial C004, AMT (Alimentador en Media Tensión) que tiene 145 km de longitud aproximadamente (desde la S.E.T. Combapata, (Subastación de Transmisión Combapata), 138/60/22.9 KV hasta el distrito más lejano de Ccapacmarca). Debido a esta excesiva longitud se presentan fenómenos de diversos tipos, provocando deficiencias en la operación, entre ellos se menciona la presencia del efecto Ferranti, ocasionando variaciones muy sensibles de tensión en los puntos más críticos del sistema. El objetivo general es desarrollar el estudio que permita mejorar la operación en estado estable del sistema eléctrico rural Chumbivilcas para el periodo 2014-2034, previa evaluación de la operación a...

La tesis presentada a continuación cuyo título es “IMPLEMENTACIÓN DE UN PLAN DE SEGURIDAD Y SALUD OCUPACIONAL EN LA EMPRESA TRANSPORTES AQD E.I.R.L”, tuvo como objetivo proponer la implementación de un Plan de Seguridad y Salud Ocupacional para prevenir la ocurrencia de incidentes y accidentes dentro de la empresa, así como demostrar la importancia de aplicar eficientemente un Sistema de Seguridad y Salud Ocupacional a través de este Plan. Por todo lo mencionado, se realizó una investigación cuantitativa- aplicada de diseño no experimental y nivel correlacional en las instalaciones de la empresa. Para la recolección de datos se utilizaron instrumentos como son la encuesta y ficha de observación; los cuales fueron validados por un experto quien dio soporte a los mismos. Para procesar los datos y la información se emplearon tablas y gráficos estadísticos apoyándonos del ...

El presente estudio tuvo como finalidad determinar la relación entre el clima familiar y los intereses vocacionales en estudiantes de 5to grado de secundaria. La muestra no probabilística estuvo conformada por 200 alumnos, que estudian en Instituciones Educativas Nacionales del distrito de San Martin de Porres, cuyas edades fluctúan entre los 15 y 18 años. Esta investigación de tipo correlaciona! utilizó como instrumentos de evaluación la Escala de Clima Social Familiar (FES) y el Inventario de Intereses Vocacionales y Ocupacionales (CASM83- R2010). Los principales resultados muestran los índices de confiabilidad mediante el alfa de cronbach para la escala de Clima Familiar y los Intereses Vocacionales. Se observa, en general, que las dimensiones de Clima Familiar presenta un nivel alto de confiabilidad (alfa=0.751); por otro lado en las áreas de los de Intereses Vocacionales se...

Objetivos: determinar algunos indicadores diagnósticos y de atención psicopedagógica de los estudiantes, así como los elementos de gestión para su constitución en la universidad, en un contexto de licenciamiento. Método: el ámbito de estudio fue una universidad pública, se usó la base de datos del estudio que realizó la Dirección Universitaria de Desarrollo Estudiantil (DUDE) para establecer una línea de base que le permitiera sustentar la intervención de la Oficina de Apoyo Académico (OGA), quien aplicó una encuesta a una muestra de 849 estudiantes de las diferentes áreas y filiales, además se sistematizó la información producida por los servicios de atención psicopedagógica y otras a estudiantes. Resultados: no todos los estudiantes duermen el tiempo suficiente; la mayoría dedican su tiempo libre al internet, redes virtuales, deportes, tareas domésticas y ver te...

Este artículo es una adaptación del estudio titulado "Seasonal effects of wildfires on the physical and chemical properties of soil in Andean grassland ecosystems in Cusco, Peru: pending challenges" (Roman et al., 2024), el cual analiza la recuperación de pastizales andinos tras incendios en la región Cusco. Para ello, se combinó el monitoreo del tiempo de regeneración vegetal con el análisis de propiedades químicas del suelo vinculadas a su fertilidad, además de entrevistar a la población local. Los resultados muestran que los valores de las propiedades del suelo aumentaron estacionalmente debido al rol que ejerció el fuego. Posteriormente, se registró una reducción gradual de dichos valores, atribuida principalmente al efecto de la lluvia y la escorrentía, factores que habrían favorecido el proceso de lixiviación de los suelos. Aunque la regeneración de pastizales es p...

Soils are a valuable renewable resource on human timescales, and they interact with distinctive grassland ecosystems characterized by unique biodiversity and essential provision of ecosystem services, such as water supply and carbon sequestration. However, knowledge of the effects of wildfires on soil properties and nutrient availability in the Andes remains limited. Andean grasslands are currently one of the ecosystems of the Peruvian Andes most affected by wildfires. Our objective is to analyze the effect of fire activity on the physicochemical properties of soil and analyze its social context in Cusco, in the southern Andes of Peru. Soil samples were collected during five periods, spanning both the dry and rainy seasons, to characterize changes in soil properties and monitor vegetation recovery post-fire in two local communities dedicated to livestock activities. The vegetation restor...

Objective: to acknowledge the pathological, clinical and epidemiological characteristics of early-onset severe preeclampsia and late-onset severe preeclampsia in patients admitted in the maternal intensive care unit (MICU) of the maternal perinatal national institute (INMP). Methods: We develop a comparative transversal descriptive study. Clinical charts were reviewed from August first of 2014 until September thirty of 2018 getting 332 charts of early-onset preeclampsia and 325 charts of the late-onset type. Results: The mean age of the patients with early-onset severe preeclampsia was 27.84 years (IC 26.88- 28.81) (p: 0.72), the mean for hospital stay was higher in the patients with the early-onset type (p: 0.006). The new born showed statistical difference in weight (p=0.000), height (p=0.000) and the APGAR score was lower in the early-onset group (p=0.000). We did not found difference...

Objective: to acknowledge the pathological, clinical and epidemiological characteristics of early-onset severe preeclampsia and late-onset severe preeclampsia in patients admitted in the maternal intensive care unit (MICU) of the maternal perinatal national institute (INMP). Methods: We develop a comparative transversal descriptive study. Clinical charts were reviewed from August first of 2014 until September thirty of 2018 getting 332 charts of early-onset preeclampsia and 325 charts of the late-onset type. Results: The mean age of the patients with early-onset severe preeclampsia was 27.84 years (IC 26.88- 28.81) (p: 0.72), the mean for hospital stay was higher in the patients with the early-onset type (p: 0.006). The new born showed statistical difference in weight (p=0.000), height (p=0.000) and the APGAR score was lower in the early-onset group (p=0.000). We did not found difference...

Objective:  To compare the SOFA score at admission and 24 hours and evaluate its usefulness in predicting maternal death. Materials and methods: A cross-sectional descriptive study of patients admitted to the Maternal ICU of the INMP was carried out from August 2014 to July 2019. Parametric and non-parametric tests were applied according to a previous evaluation of normality and a statistical significance p<0.05. Statistical analysis was performed using the statistical package STATA version 13. Results: The mean age corresponds to 28.32 years. The mean gestational age corresponded to 31.33 weeks; The mean hospital stay was 4.52 days. The area under the curve for SOFA at entry was 0.8818 and the area under the curve for SOFA at 24 hours was 0.9755.     P=0.1225. No significant differences were found between them. It was determined that the best cut-off poi...

Objective:  To compare the SOFA score at admission and 24 hours and evaluate its usefulness in predicting maternal death. Materials and methods: A cross-sectional descriptive study of patients admitted to the Maternal ICU of the INMP was carried out from August 2014 to July 2019. Parametric and non-parametric tests were applied according to a previous evaluation of normality and a statistical significance p<0.05. Statistical analysis was performed using the statistical package STATA version 13. Results: The mean age corresponds to 28.32 years. The mean gestational age corresponded to 31.33 weeks; The mean hospital stay was 4.52 days. The area under the curve for SOFA at entry was 0.8818 and the area under the curve for SOFA at 24 hours was 0.9755.     P=0.1225. No significant differences were found between them. It was determined that the best cut-off poi...

Objective. Know clinical and pathological epidemiologic characteristics from HELLP Syndrome of admitted patients in the Maternal Intensive Care Unit from INMP. Materials and methods. Clinical histories from admitted patients in the Maternal Intensive Care Unit from INMP since August of 2014 to August 31st of 2016 were checked out. Furthermore, 502 records: 49 record of patients with HELLP Syndrome y 452 records of patients with preeclampsia diagnostic were included.

Objective. Know clinical and pathological epidemiologic characteristics from HELLP Syndrome of admitted patients in the Maternal Intensive Care Unit from INMP. Materials and methods. Clinical histories from admitted patients in the Maternal Intensive Care Unit from INMP since August of 2014 to August 31st of 2016 were checked out. Furthermore, 502 records: 49 record of patients with HELLP Syndrome y 452 records of patients with preeclampsia diagnostic were included.

The liver rupture in pregnancy (LRP) is a disease of low incidence but high morbidity and mortality, being a devastating complication in patients with severe preeclampsia (SPE), approximately 200 cases in the world literature and some individual cases in the national literature are reported. Objectives: The main objective was to describe the most frequent clinical features in patients with SPE admitted to the Unidad de Cuidados Intensivos Materna (UCIM) at the Instituto Nacional Materno Perinatal (INMP). Materials and methods: The medical records of patients with the diagnosis of LRP treated in the UCIM in the period between 2004 and 2013 were reviewed, a record of data collection was used and frequency analysis was performed for most common signs and symptoms.

The liver rupture in pregnancy (LRP) is a disease of low incidence but high morbidity and mortality, being a devastating complication in patients with severe preeclampsia (SPE), approximately 200 cases in the world literature and some individual cases in the national literature are reported. Objectives: The main objective was to describe the most frequent clinical features in patients with SPE admitted to the Unidad de Cuidados Intensivos Materna (UCIM) at the Instituto Nacional Materno Perinatal (INMP). Materials and methods: The medical records of patients with the diagnosis of LRP treated in the UCIM in the period between 2004 and 2013 were reviewed, a record of data collection was used and frequency analysis was performed for most common signs and symptoms.

Introduction. Consultations outside the Maternal Intensive Care Unit (ICU) enable early identification of critical complicationsin obstetric patients, preventing clinical deterioration. Objective. To identify the characteristics of non-ICU consultationsand their relationship with maternal Near Miss events and ICU admission. Methods. An observational, correlational,and retrospective study was conducted, including 768 patients assessed outside the ICU at the Instituto Nacional MaternoPerinatal (INMP) between January and December 2022. Sociodemographic and clinical variables were collected. Bivariateand multivariate analyses were performed to evaluate the association between organ dysfunctions and the outcomesof Near Miss events and ICU admission. Adjusted risk ratios (RR) with 95% confidence intervals (CI95%) were estimated.A p-value <0.05 was considered statistically significant. Resul...