Mostrando recursos 41 - 60 de 188.863

  1. High-Performance WSe 2 Complementary Metal Oxide Semiconductor Technology and Integrated Circuits

    Santos, Elton J. G.; Yu, Lili; Zubair, Ahmad; Zhang, Xu; Lin, Yuxuan; Zhang, Yuhao; Palacios, Tomas
    Because of their extraordinary structural and electrical properties, two-dimensional materials are currently being pursued for applications such as thin-film transistors and integrated circuit. One of the main challenges that still needs to be overcome for these applications is the fabrication of air-stable transistors with industry-compatible complementary metal oxide semiconductor (CMOS) technology. In this work, we experimentally demonstrate a novel high performance air-stable WSe₂ CMOS technology with almost ideal voltage transfer characteristic, full logic swing and high noise margin with different supply voltages. More importantly, the inverter shows large voltage gain (∼38) and small static power (picowatts), paving the way for...

  2. GPS data conditioning for enhancing reliability of automated off-road vehicles

    Rovira Más, Francisco; Banerjee, Ratul
    [EN] The practical implementation of precision agriculture at a large scale has not occurred yet for several reasons. Among them, the lack of uniformity and reliability in global positioning has discouraged many producers from adopting advanced solutions which, while considered to add a significant value to their production systems, cannot be incorporated without guarantees of minimum levels of long-term consistency. Although substantial improvements are constantly being introduced by receiver manufacturers, positioning errors can appear at the final stages of the localization process, resulting in inaccuracies and anomalies normally undetected by embedded quality filters. This article proposes an actuation protocol to...

  3. Representaciones tópicas de tecnología y juventud implementación y gobierno de la identidad digital

    Gordo López, Ángel Juan; Megías Quirós, Ignacio; Parra Contreras, Pilar; García Amau, Albert
    Muchos son los mitos y prejuicios en torno a nociones de juventud y las tecnologías de la información. Algunas personas están preocupadas por las horas que pasan los más jóvenes frente al ordenador, lo que puede significar que mantengan una buena parte de sus relaciones afectivas y personales de manera virtual. Otras dan por hecho que los/as niños/as y jóvenes tienen habilidades innatas para el uso de estas tecnologías, obviando las brechas que se están produciendo. La atribución de conocimientos y predisposiciones innatas de los más jóvenes hacia las tecnologías de la información es fundamentalmente un mito construido históricamente al...

  4. Poder, desarrollo y producción social del espacio desde el estado nación: la dialéctica centro-periferia en la neocolonización de los territorios aislados. El caso de la región de Aysén (Patagonia chilena)

    Hamamé Villablanca, Álvaro
    El paradigma de la modernidad, y sus grandes relatos ideológicos, científicos y sociales que intentaron dar sentido a la historia, comienza a debilitarse en el contexto de una sociedad tecno-industrial que promueve la expansión de la racionalidad económica como lógica central de su funcionamiento. A lo largo de este proceso se han comenzado a estandarizar las formas de producción, los mercados, la cultura y los modos de vida más allá de los cambios estructurales internos de las sociedades nacionales. En esta etapa -que determinados autores1 describen como una radicalización de la modernidad ciertas características de la sociedad industrial relacionadas con...

  5. La investigación en las redes sociales: una propuesta metodológica

    Finkel Morgenstern, Federico; Gordo López, Ángel Juan; Guarino, Arianna
    La primera generación de la web (web 1.0) se basaba en la localización de información y su consumo; la interacción entre usuarios existía pero no buscaba necesariamente la producción de ningún proyecto conjunto. Por el contrario la web 2.0, desde su surgimiento coincidiendo con la crisis de los punto.com a finales de la década de los 90, incorpora paulatinamente una lógica basada en la construcción de contenidos y proyectos comunes por parte de los propios usuarios, los cuales pasan a convertirse en productores y consumidores de sus propios contenidos y productos a través de blog, redes sociales, páginas de opinión,...

  6. Interrelación conceptual de la matemática con la ciencia – vida – y el desarrollo humano integral

    Rodríguez, Milagros Elena
    Se presenta una investigación reflexiva que pone en el escenario la matriz conceptual que relaciona la matemática y el desarrollo humano integral, a través del binomio ciencia - vida. Este permite pensar a la matemática desde todos los saberes: científico, cotidiano, popular, entre otros y dicha ciencia lógica al servicio de la vida del ser humano; a su desarrollo, humanización, bienestar y formación. Dicho binomio, invita a retomar las ciencias al servicio del ser humano de su ser integro tendente cada día más a la humanización; el progreso de las ciencias acompañado de un progreso moral, con una ética responsable,...

  7. O(s) discurso(s) sobre a organização científica do trabalho: do Diário das Sessões ao Diário do Governo (1945-1974)

    Azevedo, Ana Carina
    The decades that followed the end of World War II witnessed in Portugal theaffirmation of scientific management’s study and development. Many points of view appeared and are stated in journals and books as well as on debates that took place at the “Assembleia Nacional” and at the “Câmara  Corporativa”. Based on the journals of these sessions between 1945 and 1974 including references to the topic, this article aims to analyse how the problems related to scientific management were understood in thesetwo organisms. Examining the arguments and visions in presence, we aim to understand the logic behind the application of these...

  8. A lógica do poder no Livro de vertuosa benfeytoria

    Matos Pina Martins Prata, Jorge Manuel de
    Organized around a specular structure, the Vertuosa Benfeyturia presents a theory of power that is grounded in which conceives power as originally established by God, and unfold a differentiation between power and use of power, between Power-Institution and Ruler. Power in abstract that unfold in three different types of effective implementation: Auctoritas, Dominiumand Political Power, being the Political Power the correlate of organized human society, whose incarnation in a particular form of regime – monarchy – seeks naturalization, in order to present it as the sole and necessary government of men type. Government for the community’s common good, where the...

  9. O império de um profeta sereno: ensaio de decifração do pensamento do padre António Vieira

    Sanches Ferreira Ribeiro, António Vítor
    António Vieira’s “Fifth Empire” has been the subject of numerous interpretations. However, these have remained restricted to the Portuguese world, and foreign influences exerted upon the Portuguese Jesuit have been neglected. Simultaneously, the more exuberant elements of Vieira´s thought, such as the thesis of King John IV’s resurrection, are usually dismissed as a simple curiosity caused by his spirit’s idiosyncrasy. This paper aims to reconstruct the logic of Vieira´s thought, based on unpublished sources whose origin may be traced to English and Dutch Protestant millenarianism. The author also intends to show that the Portuguese king’s resurrection theory falls within this...

  10. Estándares en educación estadística: Necesidad de conocer la base teórica y empírica que los sustentan

    Cuevas Acosta, Jesús Humberto; Ibáñez Bernal, Carlos
    In this article the importance of the development of statistical competences in students is described, their relation to national and international evaluations, the establishment of standards and the adjustments recently made to scholar curricula in basic education. The pertinence to know the theoretical and empirical fundamentals on which the standards are based is analyzed. In parallel, a proposal is made to conduct a systematic research on psychological factors and processes that may determine the development of statistical competences following the logic of the Model of the Didactic Interactions.

  11. Taps hexagonal en el desarrollo del Pensamiento Lógico

    Rojas Marticorena, Ivan Roberth; Rubio, Rosario
    The game consists of arming the taps hex numbers and using mathematical signs of the core operations, intermediate and advanced levels as it is. The student must try to form 5 to more equations in a short time with taps hexagonal. In this project we chose the hexagonal that are better suited to our interests and cover the fields of mathematics as there are jobs that are not dedicated to the levels of transfer and the social dimensions.

  12. O psicodrama e as abordagens alternativas ao empirismo lógico como metodologia científica

    Otoni Mesquita, Ana Maria

  13. El Apocalipsis y sus múltiples visiones: un acercamiento a "Apocalipsis cum figuris" de Luisa Josefina Hernández

    Hernández Delval, Ricardo
    The nature of the pilgrimage is close to the idea of “End”; from the individual’s point of view is an episode of spiritual fulfillment that concludes with the merge of two opposite spaces: the earthly reality and the divine dimension. The moment of collision between these two stages comes with the completion of the Apocalypse, whose materialization requires a journey of personal knowledge structured from an itinerant travel, where the overcoming of tests and obstacles orients the individual towards the significance of his own being. In Apocalipsis cum figuris, the Mexican writer Luisa Josefina Hernández explores different visions of the concept of Apocalypse...

  14. Cloud computing: u aplicación en la banca privada argentina

    Noceti, Héctor; Freijo, Anibal
    Cloud Computing es un modelo de tecnología basado en una combinación de recursos de hardware y software que, disponibles bajo la modalidad de servicio, pueden ser utilizados por individuos y organizaciones. Esta tecnología posibilita que los recursos puedan ser utilizados en todo momento, desde cualquier lugar en el que se encuentre el usuario, por medio de diferentes tipos de dispositivos (PC, notebook, netbook, tablets, smartphones), gracias a su capacidad de procesamiento y conexión a través de Internet. Los primeros en adoptar esta tecnología fueron los individuos, y lentamente se han ido incorporando las organizaciones, que si bien identifican las ventajas de este...

  15. Nonlinear Control of a Novel Two-Link Pendulum

    Techy, Laszlo; Reddy, C. Konda; Woolsey, Craig A.; Cao, Chengyu; Hovakimyan, Naira
    This paper describes nonlinear control of a two degree of freedom mechanical system which models a bird perched on a branch or cable. The primary contribution is the implementation, in a controlled laboratory experiment, of the recently developed C\ adaptive control approach. This technique, which allows fast adaptation with guaranteed stability margins, has been proposed for use in a variety of more sophisticated applications. Experimental results for this simple mechanical control system provide further motivation to pursue those applications. The system being considered is a variation of Spong's "Acrobot", a classic example of an underactuated mechanical control system. In addition...

  16. Organon; Graece.

    Aristotle.; Waitz, Theodorus, d.
    [v.1] Pars prior: Categoriae, Hermenevtica, Analytica priora.--[v.2] Pars posterior: Analytica posteriora, Topica.

  17. Homosexualidad latente en el cine

    Sánchez del Pulgar Legido, Rosa Mª
    Desde el principio del siglo XX en los Estados Unidos y Europa, las personas vivían su homosexualidad a escondidas por temor a las leyes que la castigaban; el cine pues, les representa del mismo modo creando una subcultura en la que pueden ser ellos mismos. La cinematografía clásica y los años posteriores se componen de numerosos filmes cargados de representaciones homosexuales de manera oculta. Interpretados desde una lectura queer, conoceremos las mil maneras de sugerir a los gais y a las lesbianas en la gran pantalla, descubriendo así la verdadera condición sexual de muchos personajes. La modalidad latente sugiere la...

  18. FT4 Data Analysis Summary (SSI-ARC)

    Gong, Chester; Santiago, Confesor; Isaacson, Douglas R.; Reardon, Scott Edward
    Standards for Unmanned Aircraft System (UAS) Detect-and-Avoid (DAA) systems are currently being developed under the auspices of the RTCA Special Committee 228 (SC-228). To support the development of these standards, a series of flight tests has been conducted at NASAs Armstrong Flight Research Center (NASA-AFRC). The fourth in this series of flight test activities (Flight Test 4, or simply FT4) was conducted during the Spring and Summer of 2016. FT4 supported the objectives of numerous organizations working toward UAS DAA Minimum Operational Performance Standards (MOPS) and UAS DAA Radar MOPS. The summary provided herein is limited to the objectives, analysis...

  19. Synchronization-based computation through networks of coupled oscillators

    Malagarriga Guasch, Daniel; Garcia Vellisca, Mariano Alberto; Villa, Alessandro E. P.; Martín Buldú, Javier; García Ojalvo, Jordi; Pons Rivero, Antonio Javier
    The mesoscopic activity of the brain is strongly dynamical, while at the same time exhibits remarkable computational capabilities. In order to examine how these two features coexist, here we show that the patterns of synchronized oscillations displayed by networks of neural mass models, representing cortical columns, can be used as substrates for Boolean-like computations. Our results reveal that the same neural mass network may process different combinations of dynamical inputs as different logical operations or combinations of them. This dynamical feature of the network allows it to process complex inputs in a very sophisticated manner. The results are reproduced experimentally...

  20. Lógica expositiva y crítica de arte: Octubre 2005

    Cirauqui, Manuel

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