430 research outputs found

    Conocemos las estaciones del año

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    Es importante enseñar a los niños en su infancia las ciencias siempre utilizando sus propios intereses, para que comprendan y entiendan de un modo más dinámico y entretenido el entorno que les rodea y los cambios que se producen en él. Este TFG se ha centrado en que los niños aprendan más sobre las estaciones del año y sobre el movimiento de traslación de nuestro planeta. Para ello éste trabajo se dividirá en dos partes, una teórica donde se habla de los aspectos más importantes del aprendizaje de la astronomía en educación infantil y otra práctica en la que haremos uso de una maqueta y algunos videos que se encuentran a lo largo del trabajo en los que se representa el movimiento de traslación de la Tierra. Al concluir el trabajo se puede observar que hay alumnos que han aprendido los conceptos nuevos que queríamos enseñarles y han comprendido lo que nos habíamos propuesto enseñarle mientras unos pocos han mantenido la idea que tenían ellos anteriormente.It is important to teach children about science ever since they are very Young as long as they can use them to their own advantage, so that they understand everything about the world that surrounds them and the changes that happen to it in a more dynamic way. In this project, I have focused on the children in the sense that they can learn more about the different seasons and the movement of translation. For that purpose, this Project is going to be divided into two parts, the first one to do with the theoretical side of it underlining the most important aspects of learning connected with astronomy, and the second one in which I will focus on practise. For that purpose, I will be using some videos to show that movement of translation of the Earth and also model. At the end of it, we will be able to observe that some students will have learnt the new concepts while a small number of children will still keep their original concepts.Universidad de Granada. Facultad de Ciencias de la Educación. Grado en Educación Infanti

    Comparación del perfil de expresión génica entre tumores de origen colorrectal y sus correspondientes metástasis hepáticas

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    Tesis doctoral inédita leída en la Universidad Autónoma de Madrid. Facultad de Medicina, Departamento de Medicina. Fecha de lectura: 24 de Noviembre de 201

    Improved graphene blisters by ultrahigh pressure sealing

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    Graphene is a very attractive material for nanomechanical devices and membrane applications. Graphene blisters based on silicon oxide micro-cavities are a simple but relevant example of nanoactuators. A drawback of this experimental set up is that gas leakage through the graphene-SiO2 interface contributes significantly to the total leak rate. Here we study the diffusion of air from pressurized graphene drumheads on SiO2 micro-cavities and propose a straightforward method to improve the already strong adhesion between graphene and the underlying SiO2 substrate, resulting in reduced leak rates. This is carried out by applying controlled and localized ultrahigh pressure (> 10 GPa) with an Atomic Force Microscopy diamond tip. With this procedure, we are able to significantly approach the graphene layer to the SiO2 surface around the drumheads, thus enhancing the interaction between them allowing us to better seal the graphene-SiO2 interface, which is reflected in up to ~ 4 times lower leakage rates. Our work opens an easy way to improve the performance of graphene as a gas membrane on a technological relevant substrate such as SiO2.Comment: pages 19, 4 figures + supplementary informatio

    Mediterranean Diet and the Emotional Well-Being of Students of the Campus of Melilla (University of Granada)

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    A certain link exists between the consumption of particular groups of food and well-being. In this study, we analyzed in depth the relationship between strict adherence to the Mediterranean diet (MD) and emotional well-being through a descriptive, exploratory, transversal, and correlational study of students from the Campus of Melilla, University of Granada, Spain. The sample consisted of 272 individuals. Adherence to the MD was measured with the PREvención con DIetaMEDiterránea (PREDIMED) questionnaire, emotional well-being (both positive and negative affection) with the Spanish version of the Positive and Negative Affect Schedule (PANAS), the state of perceived health with the Short Form-36 (SF36), and the degree of physical activity using the International Physical Activity Questionnaire Short Form (IPAQ-SF). A strict adherence to the MD was found to be significantly related to positive emotional state (β = 0.018, p = 0.009). The perceived state of health (β = 0.192, p < 0.001), mental role (β = 0.346, p < 0.001), and physical activity (β = 0.155, p = 0.007) were found to be predictive factors of a positive emotional state. Conversely, the relationship between the adherence to the MD and a negative emotional state was not significant. Various components of the MD were found to be independently connected to well-being. The results suggest that adopting a nutritional pattern such as the MD is linked to an improvement in emotional well-being

    Ictiólogos de la Argentina: Lauce Rubén Freyre.

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    This series will include all those people who, by means of their contributions, great and small, played a part in the consolidation of ichthyology in Argentina. The general plan of this work consists of individual factsheets containing a list of works by each author, along with reference bibliography and, whenever possible, personal pictures and additional material. The datasheets will be published primarily in chronological order, although this is subject to change by the availability of materials for successive editions. This work represents another approach for the recovery and revalorization of those who set the foundations of Argentine ichthyology while in diverse historical circumstances. I expect this to be the beginning of a major work that achieves the description of such a significant part of the history of natural sciences in Argentina

    Impact of the COVID-19 Pandemic on the Work Engagement of UK Active Employees

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    [Abstract] The objective of this investigation was to describe the work engagement perceived by UK workers during the COVID-19 pandemic. A descriptive cross-sectional study was conducted. The sample included 1085 participants, aged 18 years and older, living in the UK during the COVID-19 pandemic, who were active workers. Data were collected using an online questionnaire and the UWES-9. They were analysed using descriptive statistics, a t-test for equality of means or ANOVA, and the Chi-squared Automatic Interaction Detection method. The mean value in the UWES-9 was 3.46 (SD = 1.11). Participants with lower satisfaction (21.8%) gave significantly low or very low UWES-9 scores in 58.5% of the cases. Greater work engagement was obtained with more resources and less conflict, risk, and stress. In cases where there had been contact with COVID-19, this was associated with slightly lower levels of work engagement. These results could motivate and guide companies to adopt risk prevention measures and protocols to return to normal working conditions after the initial crisis phase of the pandemic

    Adherence to the Mediterranean Diet Is Associated with Health-Related Quality of Life and Anthropometric Measurements in University Professors

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    The main objective of this study was to assess the relationship between Mediterranean diet (MD) adherence and health-related quality of life (HRQOL) according to the anthropometric measurements of teaching and research staff (TRS) at the University of Granada (UGR), Spain. This diagnostic, non-experimental, cross-sectional, and observational study was performed on university lecturers (65 women and 62 men) using a correlational descriptive methodology. The lecturers’ anthropometric measurements were taken, while MD adherence was determined using the PREvention with MEDiterranean diet (PREDIMED) questionnaire. The Short Form Health Survey (SF-36) was used for measuring HRQOL. Better results for body composition were associated with improvements in the physical and mental dimensions and MD adherence. Statistically significant differences were found between sexes, with men showing higher values for weight, height, waist circumference, BMI, waist/hip ratio (WHR), muscle mass, and systolic and diastolic pressure than women. Similarly, MD adherence was positively correlated with vitality (r = 0.233; p = 0.009), social functioning (r = 0.229; p = 0.008), and the mental component summary (r = 0.205; p = 0.021). The regression model determined that the mental component summary (β = 0.239, p = 0.041), diastolic pressure (PD) (β = −0.473, p < 0.000), fat percentage (FP) (β = −0.241, p = 0.004), and age (β = −0.231, p = 0.022) significantly predicted MD adherence. The results obtained in this study suggest that healthy dietary patterns such as the MD and an optimum body composition contribute to an improved HRQO

    Analysis of financial statements in The Foundations

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    ©. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ This document is the Published, version of a Published Work that appeared in final form in LA RAZÓN HISTÓRICA Revista hispanoamericana de Historia de las Ideas .La preocupación por promover la importancia que tienen las fundaciones para el con junto de la sociedad es un aspecto que adquiere cada vez más importancia en la actualidad. En general, aún no somos conscientes del valor que tienen en nuestra sociedad, cultura y economía. Por esta razón, el presente artículo analiza, desde un punto de vista económico, el Tercer Sector, centrándose en una de las formas jurídicas más relevantes que lo componen: las fundaciones. En primer lugar, desarrollamos la historia y sus antecedentes, teniendo en consideración los diferentes enfoques que pretenden clasificar a estas entidades, sus características, y la diferente normativa a la que deben de someterse. Asimismo, realizamos un análisis de la importancia que tienen estas entidades para el conjunto de la sociedad. Finalmente, efectuamos un estudio económico-financiero, analizando una muestra de 100 fundaciones, con especial interés en el papel juega la mujer dentro de estas organizaciones. Los resultados obtenidos revelan como el tamaño termina siendo determinante a la hora de establecer el número de mujeres que termina formando parte de la Junta Directiva de estas entidades, pero que la composición de los órganos de decisión de las fundaciones es totalmente independiente de los resultados que se obtengan.The concern to promote the importance of foundations for society is an increasingly important aspect of today's society. In general, we are not yet aware of the value they have in our society, culture and economy. For this reason, this article analyses the third sector from an economic point of view, focusing on one of its most relevant legal forms: founda tions. First, we develop the history and background, taking into consideration the different approaches to classify these entities, their characteristics, and the different regulations to which they are subject. We also carried out an analysis of the importance of these organisations for society. Finally, we carried out an economic-financial study, analysing a sample of 100 foundations, with special interest in the role played by women within these organisations. Finally, we carried out an economic-financial study, analysing a sample of 100 foun dations, with special interest in the role of women within these organisations. The results obtained reveal that size is a determining factor in determining the number of women who end up on the Board of Directors of these entities, but that the composition of the foundations' decision-making bodies is totally independent of the results obtained
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