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Now showing items 1551-1560 of 4654
Elección de carrera en estudiantes de nivel socioeconómico bajo en Chile: variables asociadas, tensiones y desafíos
(Universidad de Chile, 2016)
regresión logística y análisis de interacciones. Los resultados mostraron efecto de moderación en las áreas de tecnología, educación y salud...
Análisis y comparación de tecnologías de remediación para suelos contaminados con metales
(Universidad de Chile, 2012)
El suelo es un recurso natural muy importante por su función de soporte mecánico y fuente de nutrientes. Las interacciones antropogénicas son fuentes de degradación y contaminación del suelo. En Chile existen varias actividades económicas con...
Trasfondo sociocultural y ecológico del conocimiento etnobotánico en Galvarino, IX Región de La Araucanía: Perspectiva de mujeres mapuche en el análisis de la relación entre el ser humano y las plantas
(Universidad de Chile, 2015)
La presente memoria trata sobre la relación entre mujeres mapuche y las plantas, donde además de realizar un rescate de prácticas, saberes y usos en la actualidad, se profundiza en torno a factores que vulneran y/o potencian la emergencia...
Caracterización del proceso de exportación de lana ovina chilena período 1994-2006
(Universidad de Chile, 2008)
El objetivo de este estudio fue describir el proceso de exportación de lana ovina chilena, realizando un análisis de la situación nacional de producción y exportación de lana ovina. Para ello, se hizo una descripción de los principales países que...
Exclusión generacional: La tercera Edad
(Universidad de Chile. Departamento de Antropología, 2006-05)
de realidades, tales
como el mercado de trabajo, el sistema de producción, la seguridad social, los sistemas de pensiones, las
reformas en el sistema público de salud, la estructura familiar y el consumo. Cruzado, todo ello, por uno
de los...
condición de seres humanos, no podemos soslayar. Es un proceso que no queremos protagonizar; tan sólo ser testigos externos. Su construcción y significación social lo conceptualiza como un malestar, “que no denota tan sólo una infracción estética y física...
condición de seres humanos, no podemos soslayar. Es un proceso que no queremos protagonizar; tan sólo ser testigos externos. Su construcción y significación social lo conceptualiza como un malestar, “que no denota tan sólo una infracción estética y física...
Factibilidad de desalinización de agua de mar para pequeñas comunidades del norte de Chile
(Universidad de Chile, 2017)
El origen y continuación de la humanidad se ha basado en el agua. A pesar de ser el agua uno de los recursos más abundantes en el mundo cubriendo tres cuartos de la superficie del planeta, solo alrededor de un 3% es agua dulce, el otro 97...
Síndrome metabólico equino y laminitis
(Universidad de Chile, 2019)
El síndrome metabólico equino (SME) se puede definir como una agrupación de factores de riesgo, asociados a desregulación endocrina y metabólica, que predicen un mayor riesgo de laminitis. Hoy en día, se reconoce que las causas endocrinas de...
Equine metabolic syndrome (EMS) can be defined as a group of risk factors, associated with endocrine and metabolic dysregulation, that predict an increased risk of laminitis. Today, it is recognized that the endocrine causes of laminitis, mainly EMS and the pars intermedia dysfunction, are the main reasons for presenting this clinical sign in equine practice. The main usefulness of understanding the pathophysiology and the concept of endocrine laminitis, is to create an approach directed to its causes, with the objective that preventive measures can be taken to reduce its incidence, instead of simply acting in front of cases after have shown advanced clinical signology. Despite the initial emphasis on insulin resistance (IR) as the main cause of this type of laminitis, recent studies have indicated that the hyperinsulinemia and hyperglycemia resulting from IR are responsible, and not the resistance of the hoof tissue to this hormone. Therefore, a predisposition to hyperinsulinemia without prior feed intake can often predict susceptibility to laminitis. Although all individuals experience post-prandial hyperinsulinemia, it can be magnified or manifested during fasting in the presence of certain factors such as excess regional adiposity, race, lack of physical exercise, age and sex. Specifically, the presence of obesity, in addition to excess insulin and glucose, may be indicative of EMS and neglecting their control could result in an increased risk of laminitis. To diagnose a specimen with this syndrome, it is described as necessary to complement the physical examination with laboratory tests that identify hyperinsulinemia and hyperglycemia. Among the existing tests for this purpose, studies recommend that baseline and dynamic measurements of these to be taken at the same time, since the results of a single test may be inconclusive for this purpose. A good strategy to control these endocrine alterations includes a dietary management and routine exercises, which, in certain cases, because of pain in the foot region due to laminitis, can be complemented with a pharmacological treatment, based on the use of Metformin and Levothyroxine, which have shown good results in the regulation of blood insulin and glucose in this species....
Equine metabolic syndrome (EMS) can be defined as a group of risk factors, associated with endocrine and metabolic dysregulation, that predict an increased risk of laminitis. Today, it is recognized that the endocrine causes of laminitis, mainly EMS and the pars intermedia dysfunction, are the main reasons for presenting this clinical sign in equine practice. The main usefulness of understanding the pathophysiology and the concept of endocrine laminitis, is to create an approach directed to its causes, with the objective that preventive measures can be taken to reduce its incidence, instead of simply acting in front of cases after have shown advanced clinical signology. Despite the initial emphasis on insulin resistance (IR) as the main cause of this type of laminitis, recent studies have indicated that the hyperinsulinemia and hyperglycemia resulting from IR are responsible, and not the resistance of the hoof tissue to this hormone. Therefore, a predisposition to hyperinsulinemia without prior feed intake can often predict susceptibility to laminitis. Although all individuals experience post-prandial hyperinsulinemia, it can be magnified or manifested during fasting in the presence of certain factors such as excess regional adiposity, race, lack of physical exercise, age and sex. Specifically, the presence of obesity, in addition to excess insulin and glucose, may be indicative of EMS and neglecting their control could result in an increased risk of laminitis. To diagnose a specimen with this syndrome, it is described as necessary to complement the physical examination with laboratory tests that identify hyperinsulinemia and hyperglycemia. Among the existing tests for this purpose, studies recommend that baseline and dynamic measurements of these to be taken at the same time, since the results of a single test may be inconclusive for this purpose. A good strategy to control these endocrine alterations includes a dietary management and routine exercises, which, in certain cases, because of pain in the foot region due to laminitis, can be complemented with a pharmacological treatment, based on the use of Metformin and Levothyroxine, which have shown good results in the regulation of blood insulin and glucose in this species....
Valoración de la cadena de comercialización de la carne ovina, mediante el fortalecimiento de mercados locales en la comuna de Navidad
(Universidad de Chile, 2012)
´Higgins. Para lograr lo anterior se caracterizó la oferta y demanda de corderos de esta comuna a través de cinco variables: elementos legales, calidad, oportunidad, logística y cantidad, utilizando herramientas de trabajo como encuestas a productores...
Evaluación del riesgo de incendios forestales para contribuir a su reducción en las comunidades de la diócesis de Talca, Región del Maule
(Universidad de Chile, 2019)
incidencia del cambio climático y la sequía en la ocurrencia y propagación de incendios forestales en el área de estudio, como también los altos niveles de vulnerabilidad social, física y económica, y de exposición de infraestructura crítica ante estos...
This research focuses on the integral evaluation of wildfire risk, that is, the component of hazard, vulnerability, exposure and resilience, through multicriteria methodology, seeking to contribute to the disaster risks reduction through local management in a neoliberal development model and climate change context. The study area corresponds to the diocese of Talca, particularly the communities of Huelón, Gualleco, Palmas de Toconey and Cancha de Quillay, which are expose to a multi-hazard’s context, predominantly wildfires and drought, increased by climate change. In addition, the communities have different levels of vulnerability and resilience to these events, due to the geographical characteristics of the territories, risk governance and territorial planning instruments, which has generated the necessity to evaluate the risk of the communities in favour of management for disaster reduction from the local knowledge. The multicriteria evaluation of wildfire risk is base on the AHP (Analytical Hierarchy Process) method, which uses a matrix of comparison to pairs taking its own main vector and the normalization of measurement thresholds to determine the level of risk of each community based on the weight given through a consultation with experts. The main results show the high incidence of climate change and the drought in the occurrence and spread of wildfires in the study area, as well as the high levels of social, physical and economic vulnerability, and exposure of critical infrastructure to these events in the communities of Palmas de Toconey and Cancha de Quillay. The high levels of community and institutional resilience of Huelón and Gualleco are also plotte....
This research focuses on the integral evaluation of wildfire risk, that is, the component of hazard, vulnerability, exposure and resilience, through multicriteria methodology, seeking to contribute to the disaster risks reduction through local management in a neoliberal development model and climate change context. The study area corresponds to the diocese of Talca, particularly the communities of Huelón, Gualleco, Palmas de Toconey and Cancha de Quillay, which are expose to a multi-hazard’s context, predominantly wildfires and drought, increased by climate change. In addition, the communities have different levels of vulnerability and resilience to these events, due to the geographical characteristics of the territories, risk governance and territorial planning instruments, which has generated the necessity to evaluate the risk of the communities in favour of management for disaster reduction from the local knowledge. The multicriteria evaluation of wildfire risk is base on the AHP (Analytical Hierarchy Process) method, which uses a matrix of comparison to pairs taking its own main vector and the normalization of measurement thresholds to determine the level of risk of each community based on the weight given through a consultation with experts. The main results show the high incidence of climate change and the drought in the occurrence and spread of wildfires in the study area, as well as the high levels of social, physical and economic vulnerability, and exposure of critical infrastructure to these events in the communities of Palmas de Toconey and Cancha de Quillay. The high levels of community and institutional resilience of Huelón and Gualleco are also plotte....
Efecto de la obesidad en el rendimiento académico
(Universidad de Chile, 2016-09)
La obesidad es un fenómeno transversal a toda edad, país y condición socioeconómica. Chile no es la excepción y un total de 64,5% de la población presenta problemas de exceso de peso, donde un 39,3% tiene sobrepeso y un 25,1% es obesa (ENS 2009...