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Cardiovascular risk, lifestyle, correlation. 2 Criopreservación 2 Cryopreservation 2 Entomopathogenic fungi 2 Flujo mezcla 2 Harina de pescado 2 Hongos entomopatógenos 2 más ...
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1
tesis de grado
Este estudio caracterizo la dasométria, fenotipo y productividad de árboles plus de Bertholletia excelsa “castaña”, presentes en una concesión castañera ubicada en la Comunidad de Varsovia, distrito de Las Piedras, región de Madre de Dios. Con el propósito de demostrar si existen variables fenotípicas y/o dasométricas que determinan o limitan la productividad de esta especie, además de encontrar genotipos productivos, sanos y bien formados, que procuren garantizar una permanencia longeva como donadores de semilla. Para cumplir con lo planteado, de enero a marzo de 2016, se juntó, contabilizo y se chanco los cocos de 101 árboles tentativamente productivos, de los cuales solo 55 produjeron ≥ 100 kg de masa fresca de almendra (MFA), y tuvieron copas circulares o elípticas, además de tener de 100-200 cm de dap. Estos fueron caracterizados en base a variables productivas (...
2
artículo
In mass production, the carbon nitrogen (C: N) ratio affects the growth and production of conidia. The objective was to evaluate B. bassiana and M. anisopliaenativos in solid substrates rice (Oryza sativa L.) and corn (Zea mays L.) enriched with nutritional supplements, molasses (source-carbon) in concentration (2.5-5.0 g ), amaranth and soybean meals, milk powder and yeast (nitrogen sources) of concentration (0.25-0.50 g), compared with controls. The C: N ratio was 10: 1. The experimental design was Categorical Multi-Factorial and the technique, observation. The mass production of fungi was solid fermentation in 40 treatments with 3 repetitions; the count of conidia in the Neubauer chamber; and, the analysis of results with Statgraphics Plus-Ver.5.1, IBM-SPPS-Ver.22 and Excel-2013. The best production of B. bassiana in rice was T13 (molasses-2.5 and milk-0.25) g with an average of 1.89 ...
3
tesis de maestría
Los helmintos que atacan al hombre y a los animales son un gran problema en la salud pública, siendo causa muchas veces de la desnutrición infantil y el bajo rendimiento escolar; el estudio se realizó en la Institución Educativa Señor de los Milagros localizada en Huacariz, Cajamarca en los meses de noviembre, diciembre del 2012 y enero del 2013. El objetivo principal de este estudio fue evaluar si la helmintosis entero hepática tiene influencia sobre el estado nutricional y el rendimiento escolar de los niños de la Institución Educativa Señor de los Milagros. Las muestras de heces en estudio fueron de ciento dieciocho alumnos, se las trasladaron al Laboratorio de Parasitología de la Facultad de Ciencias Veterinarias de la Universidad Nacional de Cajamarca y se las procesó mediante los métodos de flotación y sedimentación. Para obtener el índice de masa corporal se talló ...
4
tesis de grado
La práctica de la actividad física de manera sistemática contribuye con la salud del organismo, el estudio tuvo como objetivo general determinar la relación entre la actividad física y el índice de masa corporal de los estudiantes de la Institución Educativa Secundaria Túpac Amaru II del distrito de Tirapata – Puno 2019. La investigación utilizó el método científico, con un enfoque cuantitativo de tipo básico, diseño descriptivo correlacional, una población de 180 y una muestra de tipo probabilístico tómbola, con un nivel de confianza del 90% (Z = 1.65) y un margen de error del 10% (0.10) que consta de 50 estudiantes, donde se aplicó el Cuestionario de Actividad Física Habitual para Adolecentes Escolares de 24 ítems con una fiabilidad de alfa de Cronbach 0.705, donde específica la actividad deportiva, dentro de la institución y tiempo libre, se tomó los datos bio...
5
artículo
The effect of six cryoprotective solutions based on MgCl2 and methanol, in addtion with sucrose and 10% Aloe vera gel or 10% egg yolk, on the sperm viability in spermatophore and sperm mass of Litopenaeus vannamei was evaluated. Besides, cooling rates of -0.5, -1 and -2 °C/min were used until temperature reached -35, -80 and -100 °C prior to immersion in liquid nitrogen. The sperm viability rate was determined by eosin-nigrosin staining. The results showed that the solutions based on MgCl2, sucrose plus egg yolk or Aloe vera gel better preserved sperm viability in spermatophore (82.8 ± 2.3% and 72.6 ± 3.1%) and in sperm mass (83.4 ± 2.5% and 76 ± 1.1%) without significant differences with the control group (p>0.05). The freezing curve showing less damage in spermatophore started from 25 °C and reached -35 °C with a rate of -1 °C/min using a cryoprotec...
6
artículo
The effect of six cryoprotective solutions based on MgCl2 and methanol, in addtion with sucrose and 10% Aloe vera gel or 10% egg yolk, on the sperm viability in spermatophore and sperm mass of Litopenaeus vannamei was evaluated. Besides, cooling rates of -0.5, -1 and -2 °C/min were used until temperature reached -35, -80 and -100 °C prior to immersion in liquid nitrogen. The sperm viability rate was determined by eosin-nigrosin staining. The results showed that the solutions based on MgCl2, sucrose plus egg yolk or Aloe vera gel better preserved sperm viability in spermatophore (82.8 ± 2.3% and 72.6 ± 3.1%) and in sperm mass (83.4 ± 2.5% and 76 ± 1.1%) without significant differences with the control group (p>0.05). The freezing curve showing less damage in spermatophore started from 25 °C and reached -35 °C with a rate of -1 °C/min using a cryoprotec...
7
artículo
Objective: to determine the effect of the program “active and healthy older adults” on the levels of hbA1c and anthropometric status in patients with DM2 older than 59 years users of the ESSalud Ayaviri Medical Center - 2018. Methodology: quasi-experimental design study, longitudinal since two study groups were formed with measures before and after the program, a sample of 113 older adults leaving 91 participants after the selection tests were applied, with 51 being the study group and 41 the control group. The program consisted of combined exercises (aerobic and anaerobic) alternating 15 “each for45 ‘in 5 days for a period of 12 weeks, plus a healthy eating talk for the control group. Results: before the application of the program, the physical activity level of the population was calculated, this being 60.4% of low activity followed by 39.6% of moderate activity. After the appl...
8
artículo
Objective: to determine the effect of the program “active and healthy older adults” on the levels ofhbA1c and anthropometric status in patients with DM2 older than 59 years users of the ESSalud AyaviriMedical Center - 2018. Methodology: quasi-experimental design study, longitudinal since two studygroups were formed with measures before and after the program, a sample of 113 older adults leaving91 participants after the selection tests were applied, with 51 being the study group and 41 the controlgroup. The program consisted of combined exercises (aerobic and anaerobic) alternating 15 “each for45 ‘in 5 days for a period of 12 weeks, plus a healthy eating talk for the control group. Results: beforethe application of the program, the physical activity level of the population was calculated, this being60.4% of low activity followed by 39.6% of moderate activity. After the application...
9
artículo
In mass production, the carbon nitrogen (C: N) ratio affects the growth and production of conidia. The objective was to evaluate B. bassiana and M. anisopliaenativos in solid substrates rice (Oryza sativa L.) and corn (Zea mays L.) enriched with nutritional supplements, molasses (source-carbon) in concentration (2.5-5.0 g ), amaranth and soybean meals, milk powder and yeast (nitrogen sources) of concentration (0.25-0.50 g), compared with controls. The C: N ratio was 10: 1. The experimental design was Categorical Multi-Factorial and the technique, observation. The mass production of fungi was solid fermentation in 40 treatments with 3 repetitions; the count of conidia in the Neubauer chamber; and, the analysis of results with Statgraphics Plus-Ver.5.1, IBM-SPPS-Ver.22 and Excel-2013. The best production of B. bassiana in rice was T13 (molasses-2.5 and milk-0.25) g with an average of 1.89 ...
10
artículo
El presente trabajo de investigación tiene como objetivo diseñar y construir un biorreactor batch tipo tanque agitado y aireado con capacidad de un litro para la producción de proteína unicelular. Para su diseño y construcción se empleó un software que genera las especificaciones ideales para este tipo de trabajo, materiales y accesorios fácilmente manipulables y esterilizables a base de vidrio, tapones de caucho para uso químico y mangueras de plástico, el sistema de agitación se construyó con materiales de acero inoxidable más la adición de un motor de paso de 12 V. El biorreactor construido garantiza la esterilidad del sistema, una buena transferencia de oxígeno, calor y masa, al mismo tiempo que genera un mezclado uniforme tanto de la suspensión celular como del caldo fermentativo. Este tipo de biorreactor se diseñó con el propósito de generar las condiciones ideal...
11
tesis de grado
La presente tesis se realizó en el marco del proyecto “Propuesta de techos verdes acondicionados a viviendas rurales de las zonas altoandinas del Perú (altitud > 3500 msnm)”. La investigación planteó un sistema de regulación de temperatura en viviendas rurales con la finalidad de incrementar las temperaturas cuando estas sean bajas. Este sistema consiste en adicionar una cobertura vegetal a un techo preexistente de una vivienda rural típica denominando a este sistema como “Techo Verde”. El techo verde está conformado desde abajo hacia arriba, por una capa impermeable, un sistema de drenaje, un geotextil, un sustrato vegetal y plantaciones. El sistema de drenaje utilizado es el MacDrain 2L FP, el sustrato vegetal y las plantaciones son nativas de la zona del proyecto. Se utilizó además tablones de madera para el contorno del techo verde. El Techo Verde es una alternativa ...
12
tesis de grado
In this paper a simulation using MATLAB for grinding circuit and direct classification, for which the material balance equations arising in the circuit is developed, considering that there are three nodes necessarily the circuit is divided into three subsystems, the first subsystem in the circuit, (S1) is formed by the hydrocyclone and the the second subsystem (S2) is formed by joining two streams fresh feed and the hydrocyclone underflow, the third subsystem (S3) is formed by the mill. Because the feed to the mill depends on the discharge of the hydrocyclone feed to the hydrocyclone and depends on the mill discharge therefore is solved iteratively by the method of fixed point, the variable which is iterated is circulating load, for start the simulation must enter the dimensions of the equipment with operating conditions plus an initial value for the circulating load, once achieved conve...
13
artículo
Objective: The aim of this study was to determine the association between anthropometric parameters and the prevalence of dental caries and its clinical consequences among children from the Señor de los Milagros preschool in Santa Anita, Lima. Materials and Methods: In this analytical cross-sectional study, 100 children from 5 to 6 years of age were examined. Dental caries was registered with the WHO’s criteria, clinical consequences of untreated dental caries were assessed with the pufa index and anthropometric indexes (weight for age, height for age and BMI for age) were measured using WHO’s AnthroPlus software. The association between dmf-t index and BMI was then analyzed; the data was processed by Chi-square test. Results: A high prevalence of dental caries (73%) and its clinical consequences (33%) was found in this preschool population. An increment in the pufa index was detect...
14
artículo
Liposarcomas are malignant neoplasms of mesodermal origin derived from adipose tissue that form part of 10-15% of soft tissue sarcomas. For its diagnosis, the presence of a palpable abdominal mass and imaging studies such as: CT, MRI and PET are taken into account, which allow defining the appearance, size, location and organic relationships of the tumor. The case of a 51-year-old woman with a mass of fatty content and soft tissues in the retroperitoneal region is reported, in whose CT scan measures 25.8 cm x 23.5 cm x 13.5 cm, which invades and displaces the left kidney superiorly. the abdominal aorta to the right, in addition to the left ureter, the adrenal gland and which moves the descending colon forward. She underwent retroperitoneal tumor resection with multivisceral surgery that included left nephroureterectomy and left colectomy plus side-to-end colorectal anastomosis. The histo...
15
artículo
En este trabajo se realizó el análisis del efecto operar un reactor de metanación bajo diferentes condiciones de flujo de reactivos. Para ello, se realizaron simulaciones numéricas utilizando el software Aspen Plus con una cinética química del tipo Langmuir-Hinshelwood-Hougen-Watson (LHHW). Se determinaron los parámetros óptimos de diseño (diámetro y masa del catalizador) del reactor basado en el flujo de hidrógeno producido por un electrolizador que consume 4,8 kWe (0,747 mol H2/min), y se evaluó el efecto de trabajar con el mismo reactor, pero con un flujo de H2 proveniente de un proceso de 15 kWe (2,25 mol H2/min), alimentándose con una relación estequiométrica de CO2 (H2:CO2=4:1). Los resultados muestran que el diámetro más adecuado es de 50 mm para la condición de diseño; el uso de diámetros mayores reduce la caída de presión, pero aumenta costos y perjudica la...
16
artículo
Introduction: Peripheral primitive neuroectodermal tumor of the kidney (PNETk) is a very aggressive rare disease that mainly affects young men. Case report: A 19-year-old male patient with symptoms of abdominal pain, hematuria and a palpable mass, the tomography shows a large left renal tumor. Conventional radical nephrectomy was performed and sent for pathology study plus histochemistry, resulting in PNETk. The patient then continued his oncology management for chemotherapy initially. Conclusion: The PNETk that we describe represents the first case reported in our country, it constitutes a unique clinical entity due to its rarity, being a challenge to make a diagnosis and its behavior and management is still based on case reports due to its infrequency.
17
artículo
In this paper we formulate and apply the Exergy Analysis the set heat energy consumption elements of a typical plant of fishmeal, estimating experimentally the specific heat of the solid- liquid-vapor mixtures that form the raw material and steam, in order to optimize energy consumption by changes in the original installation and thus achieving the reduction in operating costs. Usually in these plants conventional energy balance and the premise that the specific heats are physical single phase flows is used; however, when solid-fat-water-steam mixture flows are presented, as is the case, these simple energy balances in each heating element become weak and lead to a high error margin in energy system assessment. In the methodology, the specific heats of mixture flows fat-water-vapor-solid is estimated by measurement of indicators in the industrial plant, contrasted with laboratory standar...
18
artículo
In this paper we formulate and apply the Exergy Analysis the set heat energy consumption elements of a typical plant of fishmeal, estimating experimentally the specific heat of the solid- liquid-vapor mixtures that form the raw material and steam, in order to optimize energy consumption by changes in the original installation and thus achieving the reduction in operating costs. Usually in these plants conventional energy balance and the premise that the specific heats are physical single phase flows is used; however, when solid-fat-water-steam mixture flows are presented, as is the case, these simple energy balances in each heating element become weak and lead to a high error margin in energy system assessment. In the methodology, the specific heats of mixture flows fat-water-vapor-solid is estimated by measurement of indicators in the industrial plant, contrasted with laboratory standar...
19
tesis de grado
El planteamiento del problema se centra en las vibraciones excesivas producto de las voladuras, que superan la VPP critico establecido por la NIV (Norma internacional de vibraciones) y la fragmentación de rocas inadecuadas generan ineficiencia en el carguío del material, que, en consecuencia, la seguridad de los trabajadores involucrados a esta actividad e instalaciones aledañas se ven en riesgo. De tal manera, se cumplió con el objetivo de la investigación de determinar la influencia de la implementación de detonadores electrónicos en la mejora del proceso de voladura en la Unidad Cerro Corona-Cajamarca, 2019, asimismo, la hipótesis es la implementación de los detonadores electrónicos influye positivamente en la mejora del proceso de la voladura de rocas, en la Unidad Minera Cerro Corona-Cajamarca, 2019. Para el marco teórico se han establecido las tres variables: la primera ...
20
tesis de grado
El presente proyecto se desarrolló con el objetivo de determinar el efecto de las características Clínicas y Socioeconómicas sobre el Estado Nutricional de pacientes infectados con VIH que reciben tratamiento antirretroviral de gran actividad (TARGA) en el Hospital Apoyo Iquitos “Cesar Garayar García”, 2016. La investigación fue no experimental, descriptivo, transversal y correlativo. La muestra estuvo constituida por 263 pacientes en TARGA. Para la recolección de datos se empleó los siguientes instrumentos: Expediente TARGA, Historia Clínica, Historia Nutricional, aplicando Índice de Masa Corporal (IMC). Los resultados fueron: Características demográficas; edad: 191 adultos jóvenes, 53 adultos intermedios, 15 adultos mayores, 4 adolescentes; sexo: 177 varones, 86 mujeres; lugar de procedencia: 202 urbano, 61 rural; grado de instrucción: 141 secundaria, 90 primaria, 23 ...