53 research outputs found

    diseño de investigación para la aplicación de un oleogel de aceite de aguacate (persea americana hass), como análogo de grasa animal para la reducción del contenido de grasas saturadas en la elaboración de una salchicha tipo frankfurt.

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    Propone formular y elaborar un embutido sustituyendo un porcentaje de grasa animal por un oleogel de aceite de aguacate para reducir la cantidad de grasas saturadas en el alimento y así brindar una alternativa menos dañina al consumidor

    Perspectiva respecto al enfoque de género en la educación básica peruana

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    El presente estudio pretende hacer un análisis acerca de los fundamentos de la propuesta del Ministerio de Educación del Perú relacionados al enfoque de género, dada la importancia que reviste en estos tiempos el conocimiento de que hombres y mujeres en el Perú tengan las mismas oportunidades, y que no sean parte de ningún tipo de discriminación ni dentro ni fuera de la escuela; enfatizando, a la vez, que los aspectos igualdad de oportunidades y no discriminación se encuentran considerados dentro del enfoque de igualdad de género del Currículo Nacional de Educación Básica. A partir de un estudio documental, se revisaron los documentos normativos y políticas de Estado, las cuales direccionan el accionar de las instituciones educativas con el propósito de sensibilizar a la comunidad educativa respecto al trato igualitario entre hombres y mujeres. Las reflexiones finales, invitan a seguir construyendo desde el Estado, una sociedad más justa y horizontal en cuanto a derechos se refiere

    Políticas públicas orientadas hacia el emprendimiento: un análisis de América y Europa

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    En los últimos años se han venido realizando varios estudios relativos al emprendimiento y los factores que influyen sobre la actividad emprendedora a nivel mundial, en los cuales se toma en cuenta el aporte que hacen los gobiernos sobre la generación de nuevas empresas con la creación de políticas públicas ya que son consideradas un elemento fundamental en el desarrollo de las economías de los países, además que pueden llegar a alentar u obstaculizar la actividad empresarial. Las políticas deben estar mayormente enfocadas en impactar al comportamiento del emprendedor, creando las condiciones necesarias para adquirir las habilidades, conocimientos, experiencia y recursos para actuar en el mundo empresarial. Por tal razón, el  objetivo de este estudio es realizar un análisis íntegro de la relación causa y efecto que las políticas públicas mantienen sobre el emprendimiento en los continentes americano y europeo para ello, en el presente documento se han empleado métodos estadísticos como la prueba ANOVA acompañado de métodos de investigación bibliográfica y exploratoria. El estudio muestra que las políticas públicas son un factor que infiere de una manera directa sobre la actividad emprendedora y se presentan como una oportunidad para las personas que desean crear un nuevo negocio en los continentes americano y europeo

    +A 5680-year tree-ring temperature record for southern South America

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    It is widely documented that the Earth’s surface temperatures have increased in recent decades. However, temperature increment patterns are not uniform around the globe, showing different or even contrasting trends. Here we present a mean maximum summer temperature record, based on tree-ring widths, over the past 5682 years (3672BC e 2009AD) for southern South America (SSA), covering from mid-Holocene to the present. This is the longest such record for the Southern Hemisphere (SH), and expands available annual proxy climate records for this region in more than 2060 years. Our record explains 49% of the temperature variation, and documents two major warm periods between 3140 e2800BC and 70BC e 150AD, which coincide with the lack of evidence of glacier advances in SSA. Recent decades in the reconstruction (1959e2009) show a warming trend that is not exceptional in the context of the last five millennia. The long-term relationship between our temperature reconstruction and a reconstructed total solar irradiance record, with coinciding cycles at 293, 372, 432e434, 512 and 746 years, indicate a persistent influence of solar forcing on centennial climate variability in SSA. At interannual to interdecadal scales, reconstructed temperature is mainly related to the internal climate variability of the Pacific Ocean, including El Nino Southern Oscillation (ENSO) and longer oscillations. Our ~ study reveals the need to characterize regional-scale climate variability and its drivers, which in the context of global-scale processes such as anthropogenic warming, interact to modulate local climate affecting humans and ecosystems.Fil: Lara, Antonio. Center for Climate and Resilience Research; Chile. Universidad Austral de Chile; Chile. Fundación Centro de los Bosques Nativos; ChileFil: Villalba, Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaFil: Urrutia Jalabert, Rocío. Center for Climate and Resilience Research; Chile. Instituto Forestal; Chile. Universidad Austral de Chile; ChileFil: González Reyes, Álvaro. Center for Climate and Resilience Research; Chile. Universidad Austral de Chile; Chile. Universidad Mayor; ChileFil: Aravena, Juan Carlos. Universidad de Magallanes; ChileFil: Luckman, Brian Henry. Western University; CanadáFil: Cuq, Emilio. Universidad Austral de Chile; ChileFil: Rodríguez, Carmen Gloria. Universidad Austral de Chile; ChileFil: Wolodarsky Franke, Alexia. Cooperativa Calahuala; Chil

    Comparación de tres métodos cortos contra un método estándar para analizar la composición nutricional de reportes de consumo de alimentos de adultos costarricenses

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    Objective: comparison of three short methods for analysis of food consumption data from a group of Costa Rican adults. Methodology: 100 questionnaires from 24-hour recalls were obtained from the Latin American Study of Nutrition and Health. Three short methods for dietary analysis based on two different exchange lists and a new food group system proposed by the researchers) were compared to a standard method based on food composition tables. The values ​​obtained were compared using the Wilcoxon signed-rank test, Spearman´s rank correlation coefficient and the Bland-Altman plot. Results: the food group system is the short method of diet whose results are more similar to the standard method in terms of energy, macro and micronutrients. In the ADA exchange lists, carbohydrates are underestimated (-19.2%) and fats are overestimated (53.8%). The Colombian exchange lists resulted in significant differences and lower correlation coefficients for sodium (0.692) and fatty acids (0.758). Conclusion: the food group system is the method that presents results which are more similar to the standard method for dietary analysis and is considered easier to use in clinical practice.Objetivo: comparar tres métodos cortos de análisis de datos de consumo de alimentos contra un método estándar en un grupo de adultos costarricenses. Metodología: se realizó un análisis de la composición nutricional de los alimentos incluidos en 100 recordatorios de 24 horas del Estudio Latinoamericano de Nutrición y Salud. Se utilizaron tres métodos cortos de análisis de dieta (listas de intercambio de la Asociación Dietética Norteamericana, listas colombianas y un nuevo sistema de grupos de alimentos propuesto por las investigadoras), así como un método estándar basado en tablas de composición de alimentos. Los valores obtenidos se compararon mediante la Prueba de Rangos de Wilcoxon, correlaciones de Spearman y gráficos de Bland-Altman. Resultados: se comprueba que el sistema de grupos de alimentos es el método corto de análisis de dieta cuyos resultados son más similares a los obtenidos por el método estándar en cuanto a energía, macro y micronutrientes. En el caso de las listas de intercambio de la ADA los carbohidratos se subestiman (-19.2 %) y las grasas se sobreestiman (53.8 %). En cuanto a las listas colombianas se observan diferencias significativas y menores coeficientes de correlación para el sodio (0.692) y los ácidos grasos (0.758). Conclusión: se encontró que el sistema de grupos de alimentos es el método que presenta los resultados más semejantes al método estándar para el análisis de dieta y se considera más fácil de utilizar en la práctica clínica.UCR::Vicerrectoría de Docencia::Salud::Facultad de Medicina::Escuela de NutriciónUCR::Vicerrectoría de Docencia::Salud::Facultad de Medicina::Escuela de Medicin

    Fatty liver index as a predictor for type 2 diabetes in subjects with normoglycemia in a nationwide cohort study

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    Our aim was to evaluate whether fatty liver index (FLI) is associated with the risk of type 2 diabetes (T2DM) development within the Spanish adult population and according to their prediabetes status; additionally, to examine its incremental predictive value regarding traditional risk factors. A total of 2260 subjects (Prediabetes: 641 subjects, normoglycemia: 1619 subjects) from the [email protected] cohort study were studied. Socio-demographic, anthropometric, clinical data and survey on habits were recorded. An oral glucose tolerance test was performed and fasting determinations of glucose, lipids and insulin were made. FLI was calculated and classified into three categories: Low ( 60). In total, 143 people developed diabetes at follow-up. The presence of a high FLI category was in all cases a significant independent risk factor for the development of diabetes. The inclusion of FLI categories in prediction models based on different conventional T2DM risk factors significantly increase the prediction power of the models when all the population was considered. According to our results, FLI might be considered an early indicator of T2DM development even under normoglycemic condition. The data also suggest that FLI could provide additional information for the prediction of T2DM in models based on conventional risk factors

    Ultraviolet Radiation and Its Effects on Plants

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    Ultraviolet radiation is a portion of the electromagnetic spectrum ranging from 10 to 400 nm, classified into three main categories: UV-A (320–400 nm), UV-B (280–320 nm), and UV-C (100–280 nm). The UV radiation from the sun that crosses the atmosphere and reaches the earth’s surface is composed largely of UV-A radiation (95%) and, to a lesser extent, UV-B (5%), which is normally filtered by stratospheric ozone. With the thinning of the ozone layer, UV-B radiation penetrates deeper into the earth’s surface, where it becomes dangerous due to its high energy content that acts at the molecular level, affecting the cycles of carbon, nitrogen, and other elements, thus, having a direct impact on global warming. On the other hand, UV radiation alters numerous essential organic compounds for living organisms. Since its discovery, it has been established that e UV-B causes alterations in plant development and metabolism, both primary and secondary. In this chapter, we summarize the current knowledge about the effects of UV radiation on the morphological, biochemical, and genetic processes in plants

    Treatment with tocilizumab or corticosteroids for COVID-19 patients with hyperinflammatory state: a multicentre cohort study (SAM-COVID-19)

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    Objectives: The objective of this study was to estimate the association between tocilizumab or corticosteroids and the risk of intubation or death in patients with coronavirus disease 19 (COVID-19) with a hyperinflammatory state according to clinical and laboratory parameters. Methods: A cohort study was performed in 60 Spanish hospitals including 778 patients with COVID-19 and clinical and laboratory data indicative of a hyperinflammatory state. Treatment was mainly with tocilizumab, an intermediate-high dose of corticosteroids (IHDC), a pulse dose of corticosteroids (PDC), combination therapy, or no treatment. Primary outcome was intubation or death; follow-up was 21 days. Propensity score-adjusted estimations using Cox regression (logistic regression if needed) were calculated. Propensity scores were used as confounders, matching variables and for the inverse probability of treatment weights (IPTWs). Results: In all, 88, 117, 78 and 151 patients treated with tocilizumab, IHDC, PDC, and combination therapy, respectively, were compared with 344 untreated patients. The primary endpoint occurred in 10 (11.4%), 27 (23.1%), 12 (15.4%), 40 (25.6%) and 69 (21.1%), respectively. The IPTW-based hazard ratios (odds ratio for combination therapy) for the primary endpoint were 0.32 (95%CI 0.22-0.47; p < 0.001) for tocilizumab, 0.82 (0.71-1.30; p 0.82) for IHDC, 0.61 (0.43-0.86; p 0.006) for PDC, and 1.17 (0.86-1.58; p 0.30) for combination therapy. Other applications of the propensity score provided similar results, but were not significant for PDC. Tocilizumab was also associated with lower hazard of death alone in IPTW analysis (0.07; 0.02-0.17; p < 0.001). Conclusions: Tocilizumab might be useful in COVID-19 patients with a hyperinflammatory state and should be prioritized for randomized trials in this situatio
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