We have ceased to be a nation in retreat : Margaret Thatcher e gli usi strategici del conflitto

This essay explores Margaret Thatcher\u2019s political agency and leadership style in terms of her reliance on discursive and media strategies which thrived on the \u201cconfusion\u201d of gender stereotypes and her ability to play with multiple, long-established archetypes of women in power, characterized by violent and aggressive femininity. Thatcher\u2019s frequent self-projection as a \u201cmasculine\u201d character, the \u201chonorary man\u201d of British politics, and her special grip on British public opinion and fantasies, were never disjointed from her ability to don, exploit, subvert and redirect \u201cmotherly\u2019 (or at least \u201cwomanly\u201d) performances at will, in order to serve her political agenda. Focusing on her strategic deployment of a rhetoric and discourses of aggression, divisiveness, conflict and war, the essay highlights Thatcher\u2019s ability to re-create and keep alive the idea of a national community always under siege, where extraordinary economic, disciplinary and defence measure were required in order to resist and overcome domestic and foreign \u201cenemies\u201d. The Falklands War will be taken as case study, for it provides an outstanding example of Thatcher\u2019s powerful revision of female political authority against the backdrop of the conventionally masculine, heroic imaginary of war. Her masterly and coterminous performances as war leader and \u201csuper-mother\u201d of the nation allowed for a complex and hybrid self-projection which still acts as an empowering model whose disciplinary subtext entails a nostalgic investment in imperial national history

The contribution of geomagnetic observatories and magnetic models to the study of secular variation and jerks in Antarctica

Some of the most interesting features of the geomagnetic field and its time variations are displayed in polar areas. Observatory monthly means usually provide an excellent opportunity to study the temporal changes of the magnetic field at a given location. Unfortunately, on the Antarctic continent the distribution of the permanent ground- based observatories does not permit a uniform coverage of the examined area. Furthermore, the magnetic records are characterized by intense external disturbances and noise that make the analysis of the magnetic field difficult. To improve our knowledge of the secular variation and detect the presence of secular variation impulses (geomagnetic jerks) in Antarctica, we use both observatory data and the CM4 quiet time magnetic field model. In particular CM4 improves our knowledge of geomagnetic jerks over Antarctica through the study of the sign changes of the secular acceleration maps

‘Fratelli del mondo’ : il calcio come pratica culturale e linguaggio globale

Alla luce del recente ingresso della Cina nell\u2019arena degli sport globali, Il saggio mira a collocare il gioco del calcio, e la cultura che lo accompagna e se ne nutre, entro la storia degli studi culturali, dimostrando come esso possa servire da prezioso strumento analitico per comprendere aspetti essenziali della contemporaneit\ue0 e accedere a pratiche di mediazione interculturale

The tail of the Jurassic fish Leedsichthys problematicus (Osteichthyes: Actinopterygii) collected by Alfred Nicholson Leeds - an example of the importance of historical records in palaeontology

The specimen of the tail of <i>Leedsichthys problematicus</i>, now in The Natural History Museum, London, was one of the most spectacular fossil vertebrates from the Oxford Clay Formation of Peterborough, but as an isolated find it shares no bones in common with the holotype of the genus and species. However, a letter from Alfred Nicholson Leeds and related documents cast valuable new light on the excavation of the tail, indicating that it was discovered with cranial bones, gill-rakers, and two pectoral fins, thereby including elements that can potentially be compared with those of the holotype. The documents also clearly indicate that The Natural History Museum's specimen is not part of the same individual as any other numbered specimen of <i>Leedsichthys</i> as had been speculated on other occasions. The maximum size of the animal represented by The Natural History Museum's specimen was possibly around 9 metres, considerably less than previous estimates of up to 27.6 metres for <i>Leedsichthys</i>. Historical documentary evidence should therefore be rigorously checked both when studying historical specimens in science, and in preparing text for museum display labels

Entorno virtual genérico para simulación de implementaciones de controladores y automatismos industriales

En diversas aplicaciones industriales es necesaria la verificación del correcto funcionamiento de las estrategias de control y automatismo antes de ser aplicadas al proceso real. En la mayoría de los casos, se generan artificialmente las entradas que en la aplicación real provendrían de sensores. Sin embargo, este tipo de metodología de prueba no permite verificar la correcta dinámica del controlador debido a que no es simple generar el mismo comportamiento en las entradas que cuando éstas están conectadas a los sensores reales. Para evitar estas restricciones en la verificación, y en aplicaciones que lo justifican, se suelen desarrollar plataformas que emulen el comportamiento de la aplicación específica. Sin embargo, la utilización de estas plataformas es exclusiva a la aplicación para las que fueron destinadas y su costo de desarrollo es generalmente elevado. En este trabajo, se presenta un entorno virtual que permite la emulación de diversas aplicaciones para permitir una utilización flexible y adaptable a diferentes procesos.In diverse industrial applications it is necessary the verification of the correct operation of the control strategies and automatism before being applied to the real process. In most of the cases, the inputs of the system, which in the real application would come from sensors, are generated artificially. Nevertheless, this type of test methodology does not allow to verify the correct dynamics of the controller because it is not simple to generate the same dynamics when these are connected to the real sensors. In order to avoid these restrictions in the verification, and when the applications justify it, platforms are usually developed to simulate the behavior of the specific application. Nevertheless, the use of these platforms is exclusive to the application for which they were implemented and its cost of development is generally elevated. In this paper, it is presented a virtual environment that allows simulating different applications in a flexible and adaptable way to be used in different processes.Sociedad Argentina de Informática e Investigación Operativ

Simulación de la aplicación del tratamiento mecánico biológico a los residuos urbanos : El caso de la ciudad de General Pico

General Pico city has a stable population around 52,000 inhabitants. The final disposition of the domiciliary solid remaindes is an important problem to be solved in this city. The garbage is accumulated progressively having every time greater difficulty to be taken advantage of and recycled. The investigation presented here allowed to construct a computacional model that simulates the management and the present treatment of the urban remainders, including in he himself the application of Biological Mechanical Treatment (TMB) of different ways, offering the possibility in front of studying the behavior of this system different tie scenes with the population growth, the increase in the generation of remainders, the capacity of the present plant (“Cooperative of Recycled Work of Don Alberto Limitada”), and the incidence in the distribution of key factors like reduction, reusability, recycling and power recovery.Sociedad Argentina de Informática e Investigación Operativ

Radio Echo Sounding (RES) investigations at Talos Dome (East Antarctica): bedrock topography and ice thickness

Radio echo sounding measurements were collected during two Antarctic expeditions to determine the ice thickness and the sub-glacial morphology of Talos Dome in the region around 72°48'S; 159°06'E (about 6400 km2) on the edge of the East Antarctic plateau adjacent to Victoria Land in the western Ross Sea sector. The increasing interest in this region is due to the fact that in this area the ice accumulation is higher than in other sites in East Antarctica. Because of this, Talos Dome could be a new site for a project of a deep ice core drilling to obtain information on climate changes near the coast of Antarctica. In this frame, the knowledge of the bedrock topography is of great importance to choose the best location for the drilling site. In this paper, airborne radio echo sounding results from two Antarctic expeditions (1997 and 1999) are presented. Bedrock topography in bi- and three-dimensions for the Talos Dome region are discussed

Simulación de la distribución de los diferentes Estéreo-Isómeros de Vitamina E y β-Caroteno en las lipoproteinas sanguíneas de vacas lecheras

La salud de los animales es un factor determinante en la calidad, seguridad e inocuidad de los alimentos de origen animal para consumo humano. Uno de los factores determinantes de la salud animal es la calidad de sus alimentos. La vitamina E, el β-caroteno y algunos minerales trazas como selenio (Se) y zinc (Zn), son esenciales para la salud y el desempeño productivo de las vacas lecheras. Los mismos forman parte de un sistema antioxidante celular, previniendo el accionar dañino de los radicales libres del oxígeno y favoreciendo el buen funcionamiento del sistema inmunitario. Entre los diferentes nutrientes con actividad antioxidante, el α-tocopherol y el β-caroteno juegan un rol preponderante en la prevención de la oxidación de los ácidos grasos poliinsaturados, presentes en las membranas celulares. La investigación aquí presentada permitió construir un modelo computacional que simula la distribución de los diferentes estéreo-isómeros sanguíneos de vitamina E en vacas lecheras durante el periparto, brindando la posibilidad de estudiar el comportamiento de este sistema frente a distintos escenarios vinculados con diferentes niveles de suplementación preparto.The wellbeing of the animals is a determining factor in the quality, security and health of foods animal origin for human consumption.. The vitamins A, E and some trace minerals like selenium (Se) and zinc (Zn), are essential for the health and the performance of the dairy cows. They belong to the cellular antioxidant system, preventing harmful driving of the free radicals of oxygen upon the good operation of the immune system. Among the different nutrients with antioxidant activity, α-tocopherol and the β- carotene plays a preponderant roll in the prevention of the oxidation of polyunsaturated fatty acids, present in cellular membranes. The investigation presented here allowed building up a computational model that simulates the distribution of the different sanguineous stereoisomer of vitamins during the peripartum in dairy cows, offering the possibility of studying the behavior of this system with different levels of supplementation prepartum.Sociedad Argentina de Informática e Investigación Operativ

Missing The Forest For The Trees: A Lack Of Upper Extremity Physical Performance Testing In Sports Physical Therapy

# Background Despite shoulder and elbow injuries being common in athletics, return to sport and reinjury rates are less than ideal. These outcomes may be driven by the absence of evidence-informed testing to determine an athlete's readiness for sport. # Purpose The purpose of this study was to explore the reported frequency of physical performance testing for return to sport readiness by physical therapists treating athletes with upper extremity injuries and to identify potential barriers that may limit use of these tests. A secondary aim was to compare practice patterns of clinicians with sports physical therapy specialty certification to clinicians without. # Study Design International, cross-sectional survey using purposive sampling. # Methods A survey instrument was created to assess the frequency of use of physical performance tests by physical therapists treating athletes with upper extremity injuries, as well as the barriers limiting the use of these tests. The 19-question online survey was distributed via email and Twitter among sports physical therapists. Independent t-tests and Chi Square analyses were conducted to determine differences in practice patterns between physical therapists with and without specialization and the frequency of potential barriers that may limit the use of these tests. # Results Four hundred ninety-eight participants met study eligibility and completed the survey. Fewer than half of participants reported using any physical performance test in making return to sport decisions for athletes with upper extremity injuries. The greatest barriers to the use of physical performance tests were a lack of equipment followed by lack of understanding of the literature, lack of time, and lack of supporting literature. Sports specialist clinicians were significantly more likely (p\<0.001) to use physical performance tests than non-specialist clinicians (71.6% versus 36.3%). # Conclusion In this survey of physical therapists (n=498), the majority admit to not using physical performance tests when making return to sport decisions for athletes with upper extremity injuries regardless of specialization. Physical therapists have an opportunity to improve the utilization physical performance testing in the upper extremity athlete in hopes of reducing injury recurrence and enhance return to sport rates. # Level of Evidence Level 3