995 resultados para 320.01


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Esta disertación constituye una reflexión acerca de la experiencia contemporánea de la indignación y su potencialidad de convertirse en alternativa para la comprensión y vivencia de lo político. En este sentido, se exploran aquí, las intersecciones de la manifestación social de la indignación con la irrupción de su novedosa realidad discursiva. Para ello, se reflexiona a través de la articulación conceptual de dos corrientes teóricas (las Teorías de la Emancipación y el Liberalismo Crítico) con la reflexión interpretativa de la indignación como experiencia que impacta los esquemas de sentido del hombre en el mundo contemporáneo. Esta perspectiva conduce a comprender que la experiencia de la indignación plantea en el escenario contemporáneo una nueva manera de concebir la condición humana y la acción en el mundo que formula una nueva visión ético-política.

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El propósito de esta disertación es rescatar las interpretaciones de Tierra y Mar en lo que se refiere al surgimiento del Orden Internacional Moderno, con el objetivo de explicar la percepción de los acontecimientos por parte de Carl Schmitt y su aporte filosófico-jurídico a la comprensión de la historia y teoría de las Relaciones Internacionales. La particularidad de esta obra de Schmitt es su estilo profundo: la variedad y amplitud de temas que abarca, que contrasta con la brevedad del texto. El presente trabajo ha encontrado vacíos en el estudio de Tierra y Mar, así como interpretaciones distintas a las propuestas por el autor, en lo concerniente al surgimiento del Orden Internacional Moderno. La originalidad de la obra de Schmitt consiste en proponer, en realidad, dos órdenes internacionales distintos que surgen en el mundo moderno.

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El interés de esta monografía es realizar un análisis del arte callejero o graffiti desde la teoría política de Jacques Rancière. Para ello se tomaron como unidades de análisis tres graffitis de la ciudad de Bogotá: El Beso de los Invisibles, País de Mierda de Jaime Garzón y Las Victimas, que, por sus características, permiten la aplicación de las categorías fundamentales de la esthesis política del autor. Los puntos de partida que guían a esta monografía se centra en la transformación de la ciudad a partir del arte urbano y en cómo los graffitis se han convertido en una forma de comunicación alternativa que se presenta en la ciudad. También se establece como premisa fundamental la importancia de ver otras maneras del hacer político, ya que muestra cómo a través del arte callejero se puede crear una transgresión, una subversión del sentido original para llegar así a la reivindicación de nuevos sujetos políticos

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OBJECTIVE: To compare patellar tendon sonographic findings in active, currently asymptomatic, elite athletes with those in nonathletic controls. DESIGN: Cross-sectional cohort study with convenience control sample. SETTING: The Victorian Institute of Sport Tendon Study Group, an institutional elite athlete study group in Australia. PATIENTS AND PARTICIPANTS: Two hundred elite male and female athletes from the sports of basketball, cricket, netball, and Australian rules football. Forty athletes who had current symptoms of jumper's knee were excluded from analysis, leaving 320 subject tendons in athletes who were currently asymptomatic. Twenty-seven nonathletic individuals served as controls. MAIN OUTCOME MEASURE: Sonographic patellar tendon appearance. We measured the dimensions of subject tendons and noted the presence or absence of hypoechoic regions and tendon calcification. Dimensions of hypoechoic regions were measured, and approximate cross-sectional areas were calculated. Chi-squared analysis was used to test the prevalence of hypoechoic regions in subjects and controls and men and women. RESULTS: In currently asymptomatic subjects, hypoechoic regions were more prevalent in athlete tendons (22%) than in controls (4%), in male subject tendons (30%) than in female subjects (14%), and in basketball players (32%) than in other athletes (9%) (all p < 0.01). Bilateral tendon abnormalities were equally prevalent in men and women but more prevalent in basketball players (15%) than in other athletes (3%) (p < 0.05). Sonographic hypoechoic regions were present in 35 of 250 (14%) patellar tendons in athletes who had never had anterior knee pain. CONCLUSIONS: Patellar tendon sonographic hypoechoic areas were present in asymptomatic patellar tendons of a proportion of elite athletes but rarely present in controls. This has implications for clinicians managing athletes with anterior knee pain.

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Temperature dependent Mossbauer measurements are done on the samples of La1- xCaxMn1-y (FeyO3)-Fe-57 with x=0 and 0.25, and y=0.01. With decreasing temperature, the specimen with x=0.25 shows a paramagnetic to ferromagnetic transition around 175 K. In the specimen x=0.0, the temperature dependence of both the center shift (delta) and the recoilless fraction (f) can be fitted very well with the Debye theory with a theta(D)=320+/-50 K. But for the specimens with x=0.25, f and delta show distinct deviations from the Debye behavior in the temperature range in which the resistivity shows a sharp decrease. Dips observed in both the f and delta around the transition temperature suggest that the Jahn-Teller distortion observed in these systems is dynamic in nature.

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Molar heat capacities of n-butanol and the azeotropic mixture in the binary system [water (x=0.716) plus n-butanol (x=0.284)] were measured with an adiabatic calorimeter in a temperature range from 78 to 320 K. The functions of the heat capacity with respect to thermodynamic temperature were established for the azeotropic mixture. A glass transition was observed at (111.9 +/- 1.1) K. The phase transitions took place at (179.26 +/- 0.77) and (269.69 +/- 0.14) K corresponding to the solid-liquid phase transitions of. n-butanol and water, respectively. The phase-transition enthalpy and entropy of water were calculated. A thermodynamic function of excess molar heat capacity with respect to temperature was established, which took account of physical mixing, destructions of self-association and cross-association for n-butanol and water, respectively. The thermodynamic functions and the excess thermodynamic ones of the binary systems relative to 298.15 K were derived based on the relationships of the thermodynamic functions and the function of the measured heat capacity and the calculated excess heat capacity with respect to temperature.

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Extensive use of the Internet coupled with the marvelous growth in e-commerce and m-commerce has created a huge demand for information security. The Secure Socket Layer (SSL) protocol is the most widely used security protocol in the Internet which meets this demand. It provides protection against eaves droppings, tampering and forgery. The cryptographic algorithms RC4 and HMAC have been in use for achieving security services like confidentiality and authentication in the SSL. But recent attacks against RC4 and HMAC have raised questions in the confidence on these algorithms. Hence two novel cryptographic algorithms MAJE4 and MACJER-320 have been proposed as substitutes for them. The focus of this work is to demonstrate the performance of these new algorithms and suggest them as dependable alternatives to satisfy the need of security services in SSL. The performance evaluation has been done by using practical implementation method.

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Extensive use of the Internet coupled with the marvelous growth in e-commerce and m-commerce has created a huge demand for information security. The Secure Socket Layer (SSL) protocol is the most widely used security protocol in the Internet which meets this demand. It provides protection against eaves droppings, tampering and forgery. The cryptographic algorithms RC4 and HMAC have been in use for achieving security services like confidentiality and authentication in the SSL. But recent attacks against RC4 and HMAC have raised questions in the confidence on these algorithms. Hence two novel cryptographic algorithms MAJE4 and MACJER-320 have been proposed as substitutes for them. The focus of this work is to demonstrate the performance of these new algorithms and suggest them as dependable alternatives to satisfy the need of security services in SSL. The performance evaluation has been done by using practical implementation method.

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Jornal elaborado pela Assessoria de Comunicação e Imprensa da Reitoria da UNESP