952 research outputs found
Aspectos histórico-jurídicos en las obras de Miguel de Cervantes
Se ha estudiado la situación histórico-social de los numerosos pleitos y pleitistas en la
España de Cervantes1, y varios han hablado de factores jurídicos en las obras del autor,
desde el tema central de justicia en Don Quijote a las repercusiones legales de situaciones
amorosas2 o actos criminales3, al lenguaje forense o el de la germanía en varios escritos4.
A mí me interesan las conexiones entre las mismas leyes y las obras cervantinas, específicamente
cómo el autor las incluye y comenta en sus escritos
The sectoral and regional effects of oil shocks: who's over a barrel?
An examination of how higher-priced oil affects various regions and business sectors, citing evidence that the oil shock accompanying Iraq's invasion of Kuwait will have a smaller impact on the overall U.S. economy than that of previous shocks.Power resources - Prices ; Regional economics
Ludwig Wittgenstein’s Legacy to Cognitive Psychology: Concepts as Participatory
Ludwig Wittgenstein (1889–1951) is regarded as one of the most influential and eminent philosophers of the twentieth century. In both his early and later work, he is a key figure in the development of analytical philosophy: he wants us to see that natural language use is pivotal to understanding the nature of the mind. However, his later work, specifically with regard to the Philosophical Investigations (1953) [henceforth referred to as the Investigations], where concepts are a participating part of the context, makes him a key figure in contemporary cognitive psychology. While Wittgenstein’s interest in psychology began between 1934-1936 when he lectured on private experience and sense data, his contributions to the field of psychology continued up until his death in 1951. Unknown to Wittgenstein at the time, his remarks on philosophical psychology would have an enormous influence on both the psychology and philosophy disciplines
The preparation and characterisation of hydrophobic polymeric membranes for use in the separation of liquid mixtures using pervaporation separation processes
Pervaporation is a membrane separation process used to separate liquid mixtures Separation is achieved by establishing a concentration vapour-pressure gradient across the membrane.
Polyurethane (PU) and polydimethylsiloxane (PDMS) membranes were prepared from their prepolymers by solution casting Dilute aqueous solutions of ethyl acetate, methyl isobutyl ketone, methyl ethyl ketone and aniline were separated using these polyurethane and polydimethylsiloxane polymeric membranes at temperature ranging from 50 to 80°C The effects of the systems operating temperature was studied.
The separations were characterised and examined by the effect of temperature on the composition of the retentate and permeate samples taken during the separation process. Gas chromatography was used to analyse the resulting retentate and permeate samples.
Extensive physical characterisation of the membranes was carried out using a number of techniques including Scanning Electron Microscopy, gravimetric sorption experiments, Differential Scanning Calorimetry.
A combination of the physical examinations and the pervaporation data was used to evaluate the membranes performances in the separation of all four solutions within the temperature range examined.
Higher selectivity values were obtained for separations carried out using the polydimethylsiloxane membrane whereas higher flux values were achieved using the polyurethane membranes. The most successful separations, based on selectivity and flux values, was deemed to be the separation of methyl isobutyl ketone and water at 80°C using the polydimethylsiloxane membrane, PDMS1, with selectivity and flux values reaching 774 and 0 400kg/m2hr, respectively.
Some of the physical charateristics of the membranes which were examined, such as the activation energy of permeation and the glass transition temperature, were found to be unsuitable for use as prediction methods for the performance of a particular membrane/liquid mixture system. The most preferable membrane preparation conditions were also isolated during the course of this study with the aid of scanning electron microscopy images
The impact of environmental acidification on the microstructure and mechanical integrity of marine invertebrate skeletons
Ocean acidification (OA), from seawater uptake of anthropogenic CO2, has a suite of negative effects on the ability of marine invertebrates to produce and maintain their skeletons. Increased organism pCO2 causes hypercapnia, an energetically costly physiological stress. OA alters seawater carbonate chemistry, limiting the carbonate available to form the calcium carbonate (CaCO3) minerals used to build skeletons. The reduced saturation state of CaCO3 also causes corrosion of CaCO3 structures. Global change is also accelerating coastal acidification driven by land-run off (e.g. acid soil leachates, tannic acid). Building and maintaining marine biomaterials in the face of changing climate will depend on the balance between calcification and dissolution. Overall, in response to environmental acidification, many calcifiers produce less biomineral and so have smaller body size. Studies of skeleton development in echinoderms and molluscs across life stages show the stunting effect of OA. For corals, linear extension may be maintained, but at the expense of less dense biomineral. Conventional metrics used to quantify growth and calcification need to be augmented by characterisation of the changes to biomineral structure and mechanical integrity caused by environmental acidification. Scanning electron microscopy and microcomputed tomography of corals, tube worms and sea urchins exposed to experimental (laboratory) and natural (vents, coastal run off) acidification show a less dense biomineral with greater porosity and a larger void space. For bivalves, CaCO3 crystal deposition is more chaotic in response to both ocean and coastal acidification. Biomechanics tests reveal that these changes result in weaker, more fragile skeletons, compromising their vital protective roles. Vulnerabilities differ among taxa and depend on acidification level. Climate warming has the potential to ameliorate some of the negative effects of acidification but may also make matters worse. The integrative morphology-ecomechanics approach is key to understanding how marine biominerals will perform in the face of changing climate
Innovative Imagery System for Enhanced Habitability Onboard ISS: Desired Features and Possible Hardware Applications
With the advent of the ISS and the experience of Russian, European, and US crewmembers on Mir, the importance of the psychological element in long duration missions is increasingly recognized. An integrated imagery system or Magic Window System could enhance the habitability, performance, and productivity for long term stays in space. Because this is type of system is a new concept for space, functional and technical requirements need to be determined. As part of a three-year project, the functional and technical requirements for an Imagery System onboard the International Space Station (ISS) have been explored. Valuable information was gathered from a survey completed by participants that had been in analog environments (remote/isolated) such as Antarctica, Aquarius, ISS crewmember debriefs, and crew support meetings to identify key functions desired for an integrated Magic Window System. Exercise and medical care activities were identified as areas that could benefit from such a system. It was determined that for exercise, it was worth exploring the concept of displaying a dynamic screen that changes as the crewmember's speed changes while showing physiological measures in a combined display. In terms of enhancing the interfaces for medical care activities, the Magic Window System could show video clips along side procedures for just-in-time training scenarios through a heads-up display. In addition, the portability, usability, and reliability were stressed as important considerations for an integrated system of technologies or Magic Window System. In addition, a review of state-of-the-art screens and other existing technologies such as tablet PCs and Personal Digital Assistants (PDAs) was conducted and contributed to defining technical requirements and feasibility of systems. Some heuristic evaluations of large displays and PDAs were conducted. Finally, feasibility for implementation onboard ISS has been considered. Currently, specific headset units are undergoing usability testing. The outcome of these activities will be valuable to determine the best candidates for an integrated system that could accommodate different needs depending on task
Accounting Profession in Hong Kong; Professional Accounting in Foreign Country Series
https://egrove.olemiss.edu/aicpa_guides/1679/thumbnail.jp
The Reality of Fitness for Pre-service Teachers: What Physical Education Majors Know and Can Do
Despite the fact that fitness looms large in the profession, and the fact that there are many issues associated with teaching and testing it, little research has been done to substantiate what in-service or pre -service teachers actually know and do related to fitness. The purpose of this article is to describe the results of two types of fitness assessments on physical education majors. The results of the Fitnessgram test on all physical education majors revealed a fairly high overall rate of passing (82 % of students passed all test items); higher passing rates were apparent for specific tests. BMI was the area of greatest difficulty and concern. In addition, majors in the teacher education concentration who had completed all coursework and student teaching were given a cognitive test called FitSmart, which is a National Health-Related Fitness Knowledge Test designed for high school students. Results indicated that although the pre-service teachers scored in the 99th percentile for high school students, their mean score was 75.18 %. Results of both these assessments raise concerns for colleges and universities as fitness plays an increasingly larger role in physical education
Historias jurídico-creativas de Cervantes y del letrado Antonio de la Peña
En El curioso impertinente, novela intercalada del Quijote, Miguel de Cervantes se acerca al tema del adulterio a través de un marido que convence a un amigo para seducir a su mujer. Este artículo compara el uso de detalles jurídicos por parte del autor creativo con los comentarios y castigos legales encontrados en un manuscrito de la época para un marido alcahuete de su mujer
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