Tópicos Sugeridos dentro de su búsqueda.
Tópicos Sugeridos dentro de su búsqueda.
https://purl.org/pe-repo/ocde/ford#3.02.27
12
https://purl.org/pe-repo/ocde/ford#3.02.14
8
https://purl.org/pe-repo/ocde/ford#2.06.02
7
ODS 3: Salud y bienestar. Garantizar una vida sana y promover el bienestar de todos a todas las edades
6
http://purl.org/pe-repo/ocde/ford#3.02.06
6
Anemia
5
COVID-19
5
más ...
Buscar alternativas:
cell data » cell death (Expander búsqueda), del data (Expander búsqueda), el data (Expander búsqueda)
data mate » data image (Expander búsqueda), data marts (Expander búsqueda), data mart (Expander búsqueda)
cell data » cell death (Expander búsqueda), del data (Expander búsqueda), el data (Expander búsqueda)
data mate » data image (Expander búsqueda), data marts (Expander búsqueda), data mart (Expander búsqueda)
1
tesis de maestría
Celdas solares en las cuales el ánodo y el cátodo son fotosensibles, han sido probadas y la eficiencia total aumenta. Los compuestos [Re(dppe)2Cl2]Cl y [Re(dppe)2O2]CI04 fueron sintetizados como posibles materiales para ser fotocátodos en una celda solar. Los compuestos fueron caracterizados por 1H RMN y ESI-MS. Medidas espectrofotométricas fueron tomadas y se apreció que ambos mostraban emisión a 600nm. Data preliminar sugiere que el primer compuesto podría ser usado en celdas solares.
2
artículo
Publicado 2020
Enlace
Enlace
The Andean tree genus Polylepis (Rosaceae) has recently been recognized to include polyploid species, but their occurrence within the genus is still incompletely known, especially in light of a forthcoming taxonomic treatment based on a narrow species concept including morphological, climatic and biogeographic distinctness that recognizes 45 species. We obtained guard cell measurements as proxies of ploidy level from 114 individuals of 33 species of Polylepis, including all species for which no previous measurements were available. In combination with previously published data, also on nucleus mass and chromosome counts, we infer that on current knowledge 19 (42%) species are probably purely diploid, 15 (33%) purely tetraploid, and one (2%) purely octoploid. The remaining eight (18%) species have mixed ploidy levels, with three (7%) being di- and tetraploid, two (4%) di- and hexaploid, a...
3
artículo
This work aims to simulate a bioreactor to produce ethanol from glucose using immobilized cells . First, we have proceeded to statistically evaluate the proposed kinetic models , from which we selected the model Aiba , Shoda and Nagathani [18 ] as the most appropriate model . Second, the values of the simulated fermentation have been validated by comparing the results with experimental data and Mutharasan Gencer [17 ] . Finally , the yield of ethanol production was simulated by considering a bioreactor of PFR type . The solution of the equations of material balance was done using Runge Kutta algorithm in Mathcad 7P IV . Comparison of simulated and experimental Mutharasan Gencer sample values appropriate arrangement .
4
artículo
This work aims to simulate a bioreactor to produce ethanol from glucose using immobilized cells . First, we have proceeded to statistically evaluate the proposed kinetic models , from which we selected the model Aiba , Shoda and Nagathani [18 ] as the most appropriate model . Second, the values of the simulated fermentation have been validated by comparing the results with experimental data and Mutharasan Gencer [17 ] . Finally , the yield of ethanol production was simulated by considering a bioreactor of PFR type . The solution of the equations of material balance was done using Runge Kutta algorithm in Mathcad 7P IV . Comparison of simulated and experimental Mutharasan Gencer sample values appropriate arrangement .
5
artículo
Publicado 2016
Enlace
Enlace
In this research was studied the interaction from a mathematical point of the human immune system T cells: naive and voters, with chronic myelogenous leukemia cells. (CML). This interaction was known through a system of nonlinear ordinary differential equations that describe the instantaneous variation of these three populations of cells. Emphasis is placed on finding solutions of analytical balance and numerically using the matlab software, and study their stability, for this purpose it has been used data obtained from similar studies and data from diseases whose pathology involves T cells as a defense mechanism, such is the case of the human immune deficiency virus. 12 parameters are examined and it has concluded that for stability, two parameters are important, the growth rate and the death rate of chronic myelogenous leukemica cells.
6
artículo
Publicado 2020
Enlace
Enlace
Prognosis for patients with squamous cell carcinoma (SCC) in oral cavity with bone invasion presence is concerning. Bone invasion patterns can be used to indicate aggressiveness and can be correlated with tumor clinical behavior. Objective: To evaluate bone invasion histopathological patterns in patients with oral cavity SCC and correlate them with the survival rate. Materials and methods: 62 patients with presence of SCC in the oral cavity as well as bone invasion were recruited for this study. Epidemiological and histopathological characteristics were tabulated and analyzed. Fischer's Square and Exact Tests were used to verify any statistical associations between the data. Results: More men were affected, especially in the fifth decade of life, and a strong association with smoking and chronic alcoholism was observed. Deaths were reported in 58% of patients, over a period of 5 years. T...
7
artículo
Publicado 2020
Enlace
Enlace
The objective of the present study is to select appropriate wall materials for houses in high Andean regions based on the measurements of the thermal behavior of construction materials using a "Test Cell" under real environmental conditions. It will be the first "Test Cell" to be installed in Peru, in Imata-Arequipa, at 4500 masl. The design and thermal analysis of the "Test Cell" are presented using dynamic simulations with the EnergyPlus program. Initially, the thermal performance of adobe, a traditional construction material in rural regions of Peru, is simulated using real meteorological data recorded in Imata between August 18 and 24, 2018, a period with low temperatures (-12.6 °C). © Published under licence by IOP Publishing Ltd.
8
artículo
Publicado 2005
Enlace
Enlace
Using photocurrent spectroscopy, we report measurements of the photo responde below the optical gap in hydrogenated amorphous silicon (a-Si:H). The a-Si:H films were grown in a non conventional DC plasma assited discharge chamber. The measurements suggest that the density of states of this material is not very different than conventional intrinsic a-Si:H (device-quality) and not so extended as usually taken. The positions of the corresponding photovoltaic transition energies are determined and agree very well with known data obtained by other methods.
9
artículo
Publicado 2025
Enlace
Enlace
Objective: To compare the frequency of oral squamous cell carcinoma in an oral and maxillofacial pathology laboratory at a teaching dental center of a Peruvian university across three decades (1991 -2020). Materials and methods: A cross-sectional, observational, descriptive, retrospective study was conducted. Age group, sex, clinical manifestations, anatomical location, and decade were analyzed. Collected data were coded to preserve patient anonymity and recorded on standardized data collection form. Statistical analysis was performed using STATA 16.0 software, applying the chi-square test and Fisher's exact test, with a 95% confidence level and p < 0.05. Results: A total of 735 records were included, the mean age was 53 years. The age group with the highest frequency was 70-79 years (n = 177). The main clinical manifestations were tumors (50.75 %) and ulcers (31.68 %). The most frequ...
10
artículo
Publicado 2023
Enlace
Enlace
Objective: To assess the degree of hemoglobin correlation as a possible predictor of hematocrit and red blood cell count according to age and sex in a population of the district of Villa El Salvador, Lima, Peru. Materials and methods: An observational, analytical, correlational and prospective study carried out with 550 menand 700 women of all ages who attended monthly preventive-promotional health campaigns, as well as routine medicalconsultations, from January 2021 to June 2022. Collected data consisted of hematocrit, red blood cells and hemoglobincounts. The Spearman’s correlation coefficient was used. Results: There was a higher prevalence of anemia in the group of women older than 11 years (35.10 %), while hemoglobin levels in most children younger than 11 years were mainly normal. High and positive correlations between hemoglobin and hematocrit close to one were found in all age ...
11
tesis de grado
Publicado 2024
Enlace
Enlace
Introducción: La transfusión de hemocomponentes constituye una práctica médica importante y frecuente a nivel mundial. El uso apropiado de transfusión de hemocomponentes salva millones de vidas; sin embargo, la prescripción inadecuada de estas transfusiones expone al paciente a riesgos transfusionales y disminuye su disponibilidad para quienes realmente lo necesitan, y más en un hospital de mediana complejidad como el Santa María de Cutervo, donde solo se transfunde concentrado de hematíes. Objetivo: Describir las prescripciones inadecuadas de transfusión de concentrado de hematíes en el hospital del MINSA nivel II-1 Santa María de Cutervo – periodo 2019-2020. Materiales y Métodos: Estudio observacional descriptivo transversal retrospectivo. Se evaluaron 168 solicitudes transfusionales, realizadas entre 2019 y 2020, seleccionadas de manera aleatoria simple. Todas las ficha...
12
tesis de grado
Publicado 2024
Enlace
Enlace
Introducción: El hemograma completo es uno de los análisis de sangre más solicitados por los médicos y procesados por los tecnólogos médicos con mucha experiencia, este hemograma nos permite detectar diversos tipos de enfermedades con alteraciones hematológicas; a través del tiempo aparecieron nuevos equipos hematológicos considerado como el hemograma automatizado, y de forma manual la lámina periférica que son dos herramientas de gran utilidad en el laboratorio hematológico que nos permite identificar las alteraciones hematológicas de la serie eritrocitaria, leucocitaria y plaquetaria; qué puedan presentarse en los pacientes con diabetes mellitus tipo II, y así mismo dar un diagnostico certero y eficaz proporcionándole con mayor rapidez un resultado eficiente. Objetivo: Determinar la diferencia del hemograma automatizado versus lámina periférica en alteraciones hematol...
13
Publicado 2018
Enlace
Enlace
El objetivo de este trabajo de investigación es dar a conocer la modernidad y avances tecnológicos, las hojas contables han ido perdiendo terreno y han dado pie al crecimiento y uso exponencial de la hoja de cálculo, la cual mantiene las características y funciones de la tradicional. Tiene filas, columnas que se interrelacionan e intercomunican entre sí, causando la producción de más celdas que poseen información valiosa permitiendo que se guarde en ella. Estos datos pueden ser tanto textos como números que al ser introducidos permiten calcular valores a partir de fórmulas. Por otro lado, las hojas son útiles para el almacenamiento de datos numéricos, para luego emplearlas en la realización de cálculos con los datos; estos pueden ser reorganizados, analizados, contrastados y presentados con facilidad gracias a los softwares. Nos centramos en la determinación del modo de tr...
14
Publicado 2019
Enlace
Enlace
El objetivo fundamental del presente trabajo de investigación dar a conocer que la informática es un recurso didáctico que incluye un conjunto de métodos y procesos para recopilar, almacenar, transmitir, procesar y recuperar diversos datos. Ahora a la computadora, teléfono, televisión, radio, etc. Estos elementos mejoran las actividades cognitivas de las personas a través de operaciones de procesamiento de información y conocimiento en el dominio de la percepción. El hardware es la parte tangible (física) ósea que se puede tocar, todo hardware necesita un software que es la parte no tangible ósea que no se puede tocar. Debido a que sus partes lógicas están dentro de la computadora, cada hardware necesita un software porque sin él, la parte física no puede realizar sus funciones para las que está diseñado. Los componentes de un hardware son electrónicos, eléctricos, el...
15
tesis de grado
Publicado 2001
Enlace
Enlace
The present experimental investigation was carried out with the educandos of the fourth degree of secondary education of the Agroindustrial National School with Technical Areas "Manuel Fidencio Hidalgo Flores" belongi.ng to the one to city of New Cajamarca, region San Martin. The problem, hypothesis, general and specific objective is had systematize by means of the relationship of the variables design, material didactic Structured Vegetable and the learning of Biology. The theoretical context of the design. material didactic Structured Vegetable was systematized endowing him of a purpose, of an action :field, of phases and diverse operations, so much in the preparation phase and application in the process of teaching- to learn and of a theoretical support based on the foundation of the biology of the learning the didactics, the chemistry the physics, and the: psychology. The presumption ...
16
artículo
Publicado 2023
Enlace
Enlace
Part of the research Epistemology Underlying Teaching Work is presented, with data collected in Peru, Chile and Uruguay, through interviews with 17 teachers. It aims to identify epistemological conceptions that underlie the teaching of Mathematics and verify whether such conceptions are similar to those found in Brazil. The objective is to apprehend the epistemological conceptions underlying the answers to questions 20-23 of the research. The result is the almost total lack of understanding that mathematical knowledge results from constructive processes. They attribute learning to teaching, without thematizing the origin of such capabilities or structures; they widely believe in its achievement by memorizing algorithms, putting creative processes such as problem solving in the background. The basic theoretical reference is Piagetian Genetic Epistemology.
17
tesis de grado
Publicado 2025
Enlace
Enlace
Introducción, en la coyuntura actual dentro del marco legal en el procedimiento de reproducción asistida la normativa peruana no contempla su regulación, pero tampoco la limita, generando un vacío legal que dejan en desprotección a las mujeres infértiles. El objetivo: Analizar cómo influirá la regulación jurídica de la maternidad subrogada en la Ley General de Salud frente al derecho de familia en mujeres infértiles, Lima 2024. La metodología para este estudio es de un enfoque cualitativo, método inductivo, tipo básico, diseño no experimental y teoría fundamentada, nivel descriptivo, técnica seleccionada la entrevista y como instrumento la guía de entrevista. El resultado indicó que las técnicas de maternidad subrogada vulneran el derecho de la mujer de ser madre y el de los menores a conocer su identidad u orígenes. En conclusión, se analizó cómo influirá la reg...
18
artículo
Part of the research Epistemology Underlying Teaching Work is presented, with data collected in Peru, Chile and Uruguay, through interviews with 17 teachers. It aims to identify epistemological conceptions that underlie the teaching of Mathematics and verify whether such conceptions are similar to those found in Brazil. The objective is to apprehend the epistemological conceptions underlying the answers to questions 20-23 of the research. The result is the almost total lack of understanding that mathematical knowledge results from constructive processes. They attribute learning to teaching, without thematizing the origin of such capabilities or structures; they widely believe in its achievement by memorizing algorithms, putting creative processes such as problem solving in the background. The basic theoretical reference is Piagetian Genetic Epistemology.
19
artículo
Part of the research Epistemology Underlying Teaching Work is presented, with data collected in Peru, Chile and Uruguay, through interviews with 17 teachers. It aims to identify epistemological conceptions that underlie the teaching of Mathematics and verify whether such conceptions are similar to those found in Brazil. The objective is to apprehend the epistemological conceptions underlying the answers to questions 20-23 of the research. The result is the almost total lack of understanding that mathematical knowledge results from constructive processes. They attribute learning to teaching, without thematizing the origin of such capabilities or structures; they widely believe in its achievement by memorizing algorithms, putting creative processes such as problem solving in the background. The basic theoretical reference is Piagetian Genetic Epistemology.
20
artículo
Publicado 2017
Enlace
Enlace
En el Perú, las lenguas vernáculas u originarias no son siempre lenguas maternas o primeras lenguas (L1), puesto que el contexto diglósico castellano-lenguas nativas ha provocado que estas últimas se encuentren en estado de segundas lenguas (L2). Esta situación lingüística constituye uno de los desafíos que debe enfrentar la Educación Intercultural Bilingüe (EIB) peruana toda vez que no contempla de forma realista su enseñanza y aprendizaje ni realiza un diagnóstico sociolingüístico del estado de cada una de ellas. El propósito de este artículo es ofrecer un examen sobre esta realidad sociolingüística y educativa poco estudiada. La argumentación y el análisis de los datos se desprenden principalmente de los textos de Nila Vigil (2004; 2005). En esta investigación, en primer lugar, se presenta un diagnóstico general de los diversos escenarios sociolingüísticos en l...
