9300 research outputs found
Sort by
Recatadas e pudorosas: O vestuário das personagens femininas espanholas como reflexo das qualidades morais da mulher no Regime de Franco (1939-1952)
Get PDFEsta investigación tiene como objetivo analizar el vestuario femenino en las películas españolas realizadas entre 1939 y 1952. Se parte de la premisa de que el Régimen utilizó las pantallas de cine como una escuela de comportamiento. Un modo aparentemente inocuo de adoctrinar a la población en los principios imperantes en una sociedad dividida y recién salida de una Guerra Civil. Las películas se convirtieron en los planteamientos visuales de lo aceptado y aceptable en cuestiones como el amor, el sexo, las relaciones de género o la forma de vestir. Controlado por la censura, el cine contribuyó a instaurar un código de vestimenta femenino que, además de fijar parámetros estéticos, definía categorías morales. Estableció los límites del pudor, pero también, potenció a partir del desarrollo de las tramas y de la repetición de personajes estereotipados, un sistema que señalara los itinerarios socialmente correctos e incorrectos, las claves del éxito y del fracaso.This research aims to analyze women's wardrobe in Spanish films made between 1939 and 1952. It is based on the premise that the Regime used movie screens as a school for behavior. This was an apparently harmless way to indoctrinate the population in prevailing principles in a divided society, fresh out of a Civil War. Films became visual proposals of what was accepted and acceptable, not only in terms of love, sex, and gender relations, but also in the way one was to dress. Cinema, controlled by censorship, contributed to instating a female dress code that defined aesthetic parameters, but also moral categories. Films establish the limits of modesty. It was also to promote a system to indicate socially correct and incorrect trajectories, based on the development of plots and the creation of stereotyped characters. The keys to social success and failure.Esta pesquisa tem como objetivo analisar o guarda-roupa feminino em filmes espanhóis realizados entre 1939 e 1952. Parte-se da premissa de que o Regime utilizava as telas de cinema como escola de comportamento. Uma forma aparentemente inócua de doutrinar a população nos princípios vigentes em uma sociedade dividida que acaba de sair de uma Guerra Civil. Os filmes tornaram-se as declarações visuais do que é aceito e aceitável em questões como amor, sexo, relações de gênero ou modo de vestir. Controlado pela censura, o cinema contribuiu para estabelecer um código de vestimenta feminino que, além de definir parâmetros estéticos, definia categorias morais. Estabelecia os limites do pudor, mas também, através do desenvolvimento das tramas e da repetição de personagens estereotipadas, promovia um sistema que indicava os itinerários socialmente corretos e incorretos, as chaves do sucesso e do fracasso
Predicción de propiedades mecánicas mediante simulación del proceso de fundición
Get PDFLa exigencia del sector eólico somete sus diseños a certificación siguiendo los criterios de guías
específicas que, referenciando la normativa internacional de materiales, tienen en cuenta las
particularidades de las turbinas. En estas guías y normativas algunos de los requisitos de los
materiales fundidos no están completamente definidos o quedan sujetos interpretación lo cual hace
difícil la optimización de sus prestaciones. La presente tesis revisa los criterios de utilización de los
materiales fundidos utilizados en el sector eólico e integra la predicción de propiedades mecánicas
de la simulación de proceso en el cálculo estructural. En la tesis se presentan tres artículos técnicos
publicados en la revista de la Asociación de Fundidores Americana y amplía información sobre
ciertos aspectos de tensiones residuales y mecánica de fractura que no estaban recogidos
expresamente en los artículos publicados.The rigorousness of the wind sector subject their designs to certification following the criteria of
specific guides which, referring to international materials standards, take into account the
particularities of the turbines. In these guides and standards, some of the requirements for cast
materials are not completely defined or should be interpreted, which makes it difficult to optimise
their performance. This thesis reviews the criteria for the use of cast materials used in the wind
energy sector and integrates the mechanical property prediction from process simulation into the
structural calculation. The thesis presents three technical articles published in the journal of the
American Foundry Association and expands on certain aspects of residual stress and fracture
mechanics that were not explicitly covered in the published articles
Raw-crushed wind-turbine blade: Waste characterization and suitability for use in concrete production
Get PDFMany of the first wind-turbine installations are reaching the end of their useful life, so their blades have to be
replaced. Inexpensive, sustainable, and straightforward recycling solutions are therefore needed. The conversion
of turbine blades into raw materials for concrete solutions is proposed in this paper, through a novel recycling
process entailing non-selective cutting, crushing, and sieving of the blade walls, without component separation.
The material, Raw-Crushed Wind-Turbine Blade (RCWTB), consists of fiberglass-composite fibers, polyurethane,
and balsa-wood particles. It serves as concrete fibers and aggregates, according to its physical and microscopic
characterizations. A customized concrete mix design and a five-stage mixing procedure with up to 6% RCWTB
achieved suitable workability levels. The compressive strength of the RCWTB concrete was 40 MPa, and it had a
higher load-bearing capacity and a lower carbon footprint than ordinary concrete. The results encourage
research on the overall performance of RCWTB concretes.This research work was supported by the Spanish Ministry of Universities, MICINN, AEI, EU, ERDF and NextGenerationEU/PRTR [grant numbers PID2020-113837RB-I00; 10.13039/501100011033; TED2021-129715B-I00]; the Junta de Castilla y León (Regional Government) and ERDF [grant number UIC-231]; and, finally, the University of Burgos [grant number SUCONS, Y135.GI]
On the Tunability of Toxicity for Viologen‐Derivatives as Anolyte for Neutral Aqueous Organic Redox Flow Batteries
Get PDFViologen-derivatives are the most widely used redox organic molecules for neutral pH negative electrolyte of redox flow batteries. However, the long-established toxicity of the herbicide methyl-viologen raises concern for deployment of viologen-derivatives at large scale in flow batteries. Herein, we demonstrate the radically different cytotoxicity and toxicology of a series of viologen-derivatives in in vitro assays using model organisms representative of human and environmental exposure, namely human lung carcinoma epithelial cell line (A549) and the yeast Saccharomyces cerevisiae. The results show that safe viologen derivatives can be molecularly engineered, representing a promising family of negolyte materials for neutral redox flow batteries.The authors acknowledge financial support by the Spanish Government (Ministerio de Ciencia e Innovacion, Grants PID2021-124974OB-C22 and PID2020-115789GB-C21) and Ramon y Cajal award (RYC2018-026086-I) as well as the MeBattery project. MeBattery has received funding from the European Innovation Council of the European Union under Grant Agreement no. 101046742. This work was supported by the Regional Government of Castilla y Leon (Junta de Castilla y Leon) and by the Ministry of Science and Innovation MICIN and the European Union NextGenerationEU/PRTR. We also gratefully acknowledge Junta de Castilla y Leon (BU049P20) and FEDER for financial support
Evaluating hydrogen embrittlement susceptibility of a 2205 DSS
No full textPonencia presentada en: 5th International Conference on Structural Integrity (ICSI 2023), 28th August - 1st September, 2023. Funchal, Madeira (Portugal)Hydrogen embrittlement of a 2205 DSS has been evaluated by in-situ tensile tests at high-pressure hydrogen gas. Mechanical tests
were conducted in smooth and notched samples, following the ASTM G142 standard. Hydrogen embrittlement susceptibility was
studied at 70 and 140 bar. In the smooth samples, the loss of ductility was marked. However, the increase in hydrogen pressure
from 70 to 140 bar seems to be practically negligible. On the other hand, in the notched samples, hydrogen damage was especially
remarkable at 140 bar. Finally, hydrogen embrittlement susceptibility is also discussed based on the fracture micromechanims.The authors would like to thank the Spanish Government for the financial support received to perform the research projects PID2021-124768OB-C21 and TED2021-130413B-I00–HyDuplex3D. This work was also supported by the Regional Government of Castilla y León (Junta de Castilla y León) and by the Ministry of Science and Innovation MICIN and the European Union Next Generation EU/PRTR (MR4W.P2 and MR5W.P3)
Análisis cualitativo en la restauración burgalesa de la problemática del desperdicio alimentario
Get PDFEn el presente trabajo se expone cual es la situación frente al desperdicio alimentario, las formas en las que nos afecta y de manera concreta se estudia el caso de la hostelería. Del mismo modo se pone de manifiesto cuáles han sido las iniciativas legislativas propuestas, se profundizará en algunas ideas, maneras y planes de actuación de la empresa para mitigar este problema y convertirlo en una ventaja a favor, concretamente a través de nuevas formas de negocio o estrategias dirigidas a la comercialización. Se realizará un estudio del sector de la hostelería, particularmente en la provincia de Burgos, mediante entrevistas a empresarios o personal de diferentes locales, con el objetivo de poder acotar la magnitud del problema (tipo y cantidad de los desperdicios alimentarios), y cuál es su nivel de concienciación acerca del tema, además de cómo actúan frente al mismo.This paper explains the situation with regard to food waste, the ways in which it affects us and specifically covers the case of the hotel and catering industry. In the same way, it shows what the proposed legislative responses have been, it will delve into some ideas, ways and plans of action for the company to mitigate this problem and turn it into an advantage, specifically through new forms of business or strategies aimed at marketing. A study of the hotel and catering sector, particularly in the province of Burgos, will be carried out by means of interviews with entrepreneurs or staff from different premises, with the aim of being able to determine the magnitude of the problem (type and quantity of food waste), and what their level of awareness of the issue is, as well as how they act in the face of it
Teaching science to students with special educational needs: a systematic review of science teaching-learning approaches in regular and special education settings
Get PDFIn this systematic review, a series of didactic proposals and experiences that have been developed over recent years in formal education are presented with the common purpose of ensuring that students with special educational needs learn science. Initially, only 54 publications on the topic were identified, which underlines the scarce research over the last 20 years and the small percentage of papers published in research journals and conference proceedings within this area. From among those publications, our review is focused on the 27 that report the implementation of didactic interventions: 11 at specific special education centres and 16 at regular educational centres. Explicit instruction was considered a fundamental strategy in the first group, while varied experiences and methods were among the most relevant approach in the second group. In addition, both educational environments involve learner-centred teaching approaches, with the implementation of inquiry-based and hands-on activities, in line with the general results of research in Science Education that does not specifically deal with SSEN. Ensuring that all learners have the opportunity to learn science requires more specific and complementary studies that consolidate the evidence of these results, taking into account the diversity of learners in classrooms for the benefit of all.This work was supported by Ministry of Science, Innovation and Universities of Spain
Social Simulation Models as Refuting Machines
No full textThis paper discusses a prominent way in which social simulations can contribute (and have contributed) to the advance of science; namely, by refuting some of our incorrect beliefs about how the real world works. More precisely, social simulations can produce counter-examples that reveal something is wrong in a prevailing scientific assumption. Indeed, here we argue that this is a role that many well-known social simulation models have played, and it may be one of the main reasons why such well-known models have become so popular. To test this hypothesis, here we examine several popular models in the social simulation literature and we find that all these models are most naturally interpreted as providers of compelling and reproducible (computer-generated) evidence that refuted some assumption or belief in a prevailing theory. By refuting prevailing theories, these models have greatly advanced science and, in some cases, have even opened a new field of research
Strategy sets closed under payoff sampling
No full textWe consider population games played by procedurally rational players who, when revising their current strategy, test each of their available strategies independently in a series of random matches –i.e., a battery of tests–, and then choose the strategy that performed best in this battery of tests. This revision protocol leads to the so-called payoff-sampling dynamics (aka test-all Best Experienced Payoff dynamics).
In this paper we characterize the support of all the rest points of these dynamics in any game and analyze the asymptotic stability of the faces to which they belong. We do this by defining strategy sets closed under payoff sampling, and by proving that the identification of these sets can be made in terms of simple comparisons between some of the payoffs of the game.Financial support from the Spanish State Research Agency (PID2020-118906GB-I00/AEI/10.13039/501100011033), from the Regional Government of Castilla y León with the EU-FEDER program (CLU-2019-04), and from the Spanish Ministry of Science, Innovation and Universities with the Fulbright Program (PRX19/00113, PRX21/00295) is gratefully acknowledged
El régimen jurídico de la competencia y el derecho industrial: la protección de las invenciones
No full textEste capítulo forma parte del tema “Régimen jurídico de la competencia y protección de signos distintivos" de la asignatura Derecho Mercantil, impartida en el Primer curso de ADE