3,435 research outputs found
Internet por red eléctrica, soluciones para la integración
No full textSi bien existen ISP (Internet Service Provider) que proveen
servicio de Internet de banda ancha en distintas plataformas,
todavía es difícil llegar a lugares alejados, surge la necesidad de contar con una tecnología que permita acercar Internet a estas regiones.
De las distintas plataformas capaces de soportar transmisión de
datos, Power Line Communication (PLC) resulta de particular
interés pues aprovecha como canal de comunicación la infraestructura ya montada para la red de distribución de
energía eléctrica.Fil: Pezoimburu, Paola. Universidad de Buenos Aires. Facultad de Ingeniería. Laboratorio de Procesamiento de Señales y Comunicaciones. Buenos Aires; Argentina.Fil: Cervetto, Marcos. Universidad de Buenos Aires. Facultad de Ingeniería. Laboratorio de Procesamiento de Señales y Comunicaciones. Buenos Aires; Argentina.Fil: Carducci, Leonardo. Universidad de Buenos Aires. Facultad de Ingeniería. Laboratorio de Procesamiento de Señales y Comunicaciones. Buenos Aires; Argentina
A Fully-configurable SoC-Based IR-UWB Platform for Data Acquisition and Algorithm Testing
No full textResearch and development of algorithms for processing Impulse Radio Ultra-Wideband signals is a trending issue within remote sensing applications, personal area networks, and RF imaging among other areas. We have designed a SoC-based platform, conceived for scientific experimentation, with a fully modular and configurable design. Built with off-the-shelf components, our design achieves a configurable UWB-capable sampling rate through an equivalent-time sampling scheme. In this letter, we introduce the system architecture, its main interfaces, and the rationale behind each module implementation.Fil: Cervetto, Marcos. Instituto Nacional de Tecnología Industrial; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería; ArgentinaFil: Marchi, Edgardo Jose. Instituto Nacional de Tecnología Industrial; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería; ArgentinaFil: Galarza, Cecilia Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Centro de Simulación Computacional para Aplicaciones Tecnológicas; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería; Argentin
Transcripts for dissertation, "Iron fellows : commitment and activism in a poor people's movement"
No full textThis set contains transcripts from Marcos Perez's dissertation project. Data is available by request to interested scholars and students. Visitors may not download the files without express permission from the author. Visitors may not make copies of the transcripts, nor distribute any part of them separately. To request access, please contact [email protected]
A Low-Cost Ultra-Wideband Test-Bed
No full textThis paper presents the design and implementation of a simple transceiver test-bed for implementing and testing algorithms for impulsive UWB applications. The platform has been developed using low-cost off-the-shelf components. We have conceived a simple modular architecture that was targeted to low power, short-range applications. The test-bed is discussed,commenting on the main design decisions and the benefits of the chosen architecture. Measurements of some blocks of the system are also presented.Fil: Altieri, Andrés Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Centro de Simulación Computacional para Aplicaciones Tecnológicas; ArgentinaFil: Gámez, Pablo. Instituto Nacional de Tecnología Industrial; ArgentinaFil: Marchi, Edgardo Jose. Instituto Nacional de Tecnología Industrial; ArgentinaFil: Cervetto, Marcos. Instituto Nacional de Tecnología Industrial; ArgentinaFil: Bouza, Magadalena. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Electronica; ArgentinaFil: Galarza, Cecilia Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Centro de Simulación Computacional para Aplicaciones Tecnológicas; ArgentinaXXXV Simpósio Brasileiro de Telecomunicações e Processamento de SinaisSan PedroBrasilSociedade Brasileira de Telecomunicaçõe
Courageous women in media: Marcos and censorship in the Philippines
No full textWhen Philippine President Ferdinand Marcos declared Martial Law in 1972, press freedom became the first casualty in the country that once boasted of being the 'freest in Asia'. Printing presses, newspaper offices, television and radio stations were raided and padlocked. Marcos was especially fearful of the press and ordered the arrest of journalists whom he charged with conspiring with the 'Left'. Pressured into lifting martial law after nearly 10 years, Marcos continued to censor the media, often demanding publishers to sack journalists whose writing he disapproved of. Ironically, he used the same 'subversive writings' as proof to Western observers that freedom of the press was alive and well under his dictatorship. This article looks at the writings of three female journalists from the Bulletin Today. The author examines the work of Arlene Babst, Ninez Cacho-Olivares, and Melinda de Jesus and how they traversed the dictator's fickle, sometimes volatile, reception of their writing. Interviewed is Ninez Cacho-Olivare, who used humour and fairy tales in her popular column to criticise Marcos, his wife, Imelda, and even the military that would occasionally 'invite' her for questioning. She explains an unwritten code of conduct between Marcos and female journalists that served to shield them from total political repression
Producing Ferdinand E. Marcos, the Scholarly Author
No full textThisarticle discusses the compelling evidence—found in various primaryand secondary sources and analyzed through methods drawn from bookhistory and plagiarism detection—that not one of the books authored byPres. Ferdinand E. Marcos was actually written by him. Thearticle alsoshows how many of “Marcos’s” books had either plagiarized content(e.g., republishing contents from previous works) or were “padded” withlengthy appendices. It also explains the seemingly far-reaching distributionnetwork of these books. Lastly, thearticle looks into how these books,although they have not been republished for decades, continue to servetheir intended functions.KEYWORDS: FERDINAND E. MARCOS • BOOK HISTORY • GHOSTWRITING • PLAGIARISM• ADRIAN CRISTOBA
CFD based aerodynamic redesign of a Marcos LM600
No full textThe final years of the 1960s mark the introduction of aerodynamics to the field of motorsport and they have grown to be inextricably connected ever since. The competing cars in nearly every motorsport category are fitted with aerodynamic devices while Formula One teams actually have departments that are primarily concerned with the aerodynamic design of their vehicles. The GT-class is another motorsport category that hosts cars that are predominantly shaped with the aim to optimize aerodynamic efficiency. The Marcos LM600 is one of the cars that competes in the GT-class and forms the sculpture of this thesis. The subject of this thesis is to enhance the aerodynamic characteristics of the Marcos LM600 through utilization of Computational Fluid Dynamics (CFD). This implies that on going through this report a number of modifications to the Marcos LM600 will be presented with the aim of obtaining an aerodynamically improved racing car. In a sense the Marcos LM600 thus resembles a sculpture that assumes its final shape after a succession of modifications. The aerodynamic characteristics that are of primary significance to a racing car are the downforce and drag. The obvious target is to maximize the downforce and downforce-to-drag ratio. Apart from this force ratio, the downforce distribution between the wheel axes is another important racing car characteristic. The actual handling stability of the car is determined by the force balance between the front and rear wheels. Too much ”grip” on the front wheels causes oversteer, while too much rear wheel grip causes understeer. Thus when designing racing cars, the aerodynamicist should take into account the front wheel and rear wheel downforce and to obtain either a vehicle with neutral steer or slightly oversteer1. However, vehicle handling is beyond the scope of this thesis, which is why the Marcos LM600 will only be optimized in terms of downforce and drag, leaving out their effect on the vehicle stability.Aerospace Engineerin
Delivery invisible : una investigación sonora sobre el trabajo en plataformas de delivery en Buenos Aires
No full textEn esta investigación periodística en formato documental narrativo-radiofónico se analiza en profundidad las relaciones laborales en plataformas de reparto de la Ciudad de Buenos Aires. En una serie de cinco episodios de aproximadamente 13 minutos cada uno, el oyente podrá conocer distintas aristas sobre las condiciones laborales de esta actividad y el imaginario subjetivo a partir de distintos testimonios de jóvenes trabajadores/as, profesionales y especialistas de la temática. Se busca visibilizar una realidad que está a la vista de todes pero que su práctica tiene poco conocimiento crítico. Así mismo, se promueve que una producción independiente y autogestiva aborde cómo se expresan las relaciones de poder en el mercado laboral de plataformas de reparto.\n\nEn el primer episodio, se analiza la llegada al país de empresas como Rappi, Pedidos Ya y Glovo; la relación entre tecnología y trabajo; y el funcionamiento de la llamada “economía de plataformas”. En el segundo episodio, se identifica el papel de las publicidades en la creación del “imaginario emprendedor”, sus ventajas y desventajas. En el tercer episodio, el oyente conocerá por qué el algoritmo es un arma de precarización laboral que afecta principalmente a inmigrantes, mujeres y estudiantes. En el cuarto episodio, se detalla el rol del Estado en la generación de marcos regulatorios adecuados para el sector en beneficio de les trabajadores. En el quinto y último episodio, se muestran las consecuencias de la llegada al país de la pandemia mundial del Covid-19 en la actividad catalogada de “esencial”.\n\nA través de una serie de entrevistas cualitativas, los resultados de esta investigación muestran que las relaciones laborales de la actividad de delivery en plataformas están atravesadas por profundas desigualdades económicas, legales y sociales. Si bien los interrogantes sobre el futuro del trabajo continúan abiertos, este trabajo es un gran aporte para visibilizar distintas voces y experiencias que no tienen lugar en grandes cadenas periodísticas.Fil: Caruso, Paola. Universidad de Buenos Aires. Facultad de Ciencias Sociales. Buenos Aires, ArgentinaFil: Cervetto, Laura. Universidad de Buenos Aires. Facultad de Ciencias Sociales. Buenos Aires, Argentin
A low-cost ultra-wideband test-bed for dielectric target detection
No full textThis work presents a low-cost Ultra-Wideband (UWB) test-bed for impulse radio communications and sensing. The design was conceived for generic algorithm implementation and testing over a modular and simple architecture. The hardware design is based on commercially available components and is capable of achieving a 1 GHz bandwidth with a central frequency of 4.2525 GHz. The test-bed architecture is presented and discussed then, some measurements over the prototypes are shown.Fil: Gámez, Pablo. Instituto Nacional de Tecnología Industrial; ArgentinaFil: Marchi, Edgardo Jose. Instituto Nacional de Tecnología Industrial; ArgentinaFil: Cervetto, Marcos. Instituto Nacional de Tecnología Industrial; ArgentinaFil: Giuffrida, Carolina Andrea. Instituto Nacional de Tecnología Industrial; ArgentinaFil: Perez, Gaston. Instituto Nacional de Tecnología Industrial; ArgentinaFil: Altieri, Andrés Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Centro de Simulación Computacional para Aplicaciones Tecnológicas; ArgentinaFil: Galarza, Cecilia Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Centro de Simulación Computacional para Aplicaciones Tecnológicas; ArgentinaXVII Workshop on Information Processing and ControlMar del PlataArgentinaUniversidad Nacional de Mar del Plat
Parrhesía e loucura no exemplo de Estamira
No full textTese (doutorado) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas, Programa de Pós-Graduação em Filosofia, Florianópolis, 2015.Um autor como Michel Foucault (1926-1984), ao apresentar um estudo extenso sobre saber, poder e ética, deixa o leitor com dúvidas e indagações: O sujeitado ao poder não teria como se contrapor à submissão? O poder psiquiátrico, com seus saberes sobre a loucura, seria tão poderoso assim? Na tentativa de responder estas questões, estabeleceu-se como objetivo geral investigar a parrhesía e a loucura no exemplo de Estamira. Como pressuposto metodológico, optou-se pelos escritos de Michel Foucault sobre a temática da loucura. Na análise do documentário a respeito de Estamira, produzido por Marcos Prado em 2004, foram analisadas algumas cenas, fundamentando-se, sobretudo, em seus últimos escritos, de 1980 a 1984, do Collège de France. O pensamento último de Foucault evidencia uma preocupação histórica do que seria o cuidado de si e a parrhesía no período da Grécia Clássica, por volta do séc. IV a.C., o período helênico romano séc. I e II d.C. e os primeiros cristãos (IV a V d.C.). O autor consegue perceber, na antiguidade grega, a existência de uma subjetividade que não segue normas, a qual se torna uma prática de liberdade (práticas ascéticas), uma busca de como dizer a verdade (parrhesía) que leva a uma constituição ética atrelada à estética da existência da vida do sujeito. Conclui-se, com base nas análises históricas foucaultianas, que o exemplo de Estamira nos remete a uma ?ontologia do presente?, ?ontologia dos discursos verdadeiros?, uma concepção de subjetividade, de verdade e de filosofia de vida para o indivíduo, com sua loucura, transformar sua vida e ser diferente do que é, governando a si mesmo pela parrhesía, ser franco, falar a verdade.Abstract : An author such as Michel Foucault (1926-1984) when presenting an extensive study of knowledge, power and ethics, leaves the reader with doubts and questions: The subjected to power could not possibly oppose itself from submission? The psychiatric power, with its knowledge about insanity, would be that powerful? In the attempt to answer these questions, it was established as a general objective to investigate the parrhesia and insanity in the case of Estamira. For the methodological presupposition, it was chosen the writings of Michel Foucault on the theme of madness. In the documentary film analysis about Estamira, produced by Marcos Prado in 2004, some scenes were analyzed mostly based in his later writings, from 1980 to 1984, from the Collège de France. The final thought of Foucault reveals a historical concern of what would be the self care and the Parrhesia in the Classical Greece period from around the IV century B.C., the Roman Hellenistic period during the I and II century A.D. and the early Christians (IV to V A.D.). The author is able to perceive that in Greek antiquity, the existence of a subjectivity that does not follow rules, which turns to a practice of freedom (ascetic practices), a search for how to tell the truth (parrhesia) leading to an ethical constitution tied to the aesthetics of existence of the subject´s life. The conclusion is, based on Foucault's historical analysis, that the example of Estamiranos refers to an "ontology of the present", "ontology of real discourses," a conception of subjectivity, truth and life philosophy for the individual, with his insanity, to transform his life and be different than it is, ruling himself through parrhesia, be honest and to tell the truth
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