763 resultados para Lou Reed
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En el presente trabajo me centraré en el análisis comparado de "El mexicano" (1911) de Jack London con México insurgente (1914) y tres cuentos incluidos en Hija de la revolución y otros cuentos: "Mac-American" (1914), "Cuadros de México" (1914) y ?Endimión o en la frontera? (1916) de John Reed. El objetivo que me propongo es el de establecer una correlación entre dos autores que abordan en sus escritos el tema de la revolución mexicana a partir de un análisis comparado de las obras antes mencionadas. Las primeras hipótesis que construí parten de la base común de ofrecernos una visión particular del fenómeno político, social y económico que marcó a México a principios del siglo XX: la revolución mexicana. Tomando como eje de comparación esta semejanza pude ir encontrando, a lo largo del análisis, puntos de divergencia en el modo en que estos dos escritores abordaron este mismo suceso. Por un lado se sitúa London, quien construye en "El mexicano" una representación simplista tanto de las características del revolucionario y de las motivaciones que lo llevan a decidirse por la lucha armada, como del régimen al que éste se opone. Frente a esta representación populista de la revolución mexicana, Reed pone en primer plano, tanto en México insurgente como en sus cuentos, lo complejo de ese mismo hecho ya sea por la confusión de los revolucionarios en torno al trasfondo ideológico que la revolución conllevó o por las diferentes motivaciones que los impulsaron a participar en la misma. Esta tesis inicial de la complejidad de la representación en Reed se sustenta, en el plano formal, por lo que podríamos denominar "técnica del montaje mural", en relación con el movimiento artístico denominado "muralismo" que se desarrolló en México luego de la revolución
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This paper presents an alternative Forward Error Correction scheme, based on Reed-Solomon codes, with the aim of protecting the transmission of RTP-multimedia streams: the inter-packet symbol approach. This scheme is based on an alternative bit structure that allocates each symbol of the Reed-Solomon code in several RTP-media packets. This characteristic permits to exploit better the recovery capability of Reed-Solomon codes against bursty packet losses. The performance of our approach has been studied in terms of encoding/decoding time versus recovery capability, and compared with other proposed schemes in the literature. The theoretical analysis has shown that our approach allows the use of a lower size of the Galois Fields compared to other solutions. This lower size results in a decrease of the required encoding/decoding time while keeping a comparable recovery capability. Finally, experimental results have been carried out to assess the performance of our approach compared to other schemes in a simulated environment, where models for wireless and wireline channels have been considered.
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En rollo de microfilm con: La Donsayna (HM-11-4-068)
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Growing energy crops on marginal land has been promoted as a way of ensuring that biomass production involves an acceptable and sustainable use of land. Saline and saline-prone agricultural lands represent an opportunity for growing energy crops avoiding the displacement of food production and contributing to restoration of degraded land. Giant reed (Arundo donax L.) is a perennial grass that has been proposed as a promising energy crop for lignocellulosic biomass production while its tolerance to salinity has been proved. In this work, the identification of surplus saline lands that could be irrigated with saline waters for growing tolerant-energy crops (giant reed) in the mainland of Spain and the assessment of the agronomically attainable yield in these limiting growing conditions were undertaken. To this purpose, a GIS analysis was conducted using geodatabases related to saline areas, agro-climatic conditions, irrigation water requirements, agricultural land availability, restrictions regarding the range of electrical conductivity tolerated by the crop, competition with agro-food crops and irrigation water provisions. According to the approach developed, the irrigated and saline agricultural area available and suitable for biomass production from giant reed amounted up to 34 412 ha. The agronomically attainable yield in these limiting conditions was estimated at 12.7 – 22.2 t dm ha−1 yr−1 and the potential production of lignocellulosic biomass, 597 338 t dm yr−1. The methodology followed in this study can be applied to other target regions; it allows the identification of this type of marginal lands, where salinity-tolerant plant species could be grown for bioenergy purposes, avoiding competition with agro-food crops, and where soil restoration measurements should be undertaken.
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Microfilme. Valencia: BV, ca 1990
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Microfilme. Valencia: BV, ca 1990
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Microfilme. Valencia: BV, ca 1990
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Microfilme. Valencia: BV, ca 1990
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Microfilme. Valencia: BV, ca 1990
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Microfilme. Valencia: BV, ca 1990
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Microfilme. Valencia: BV, ca 1990
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Microfilme. Valencia: BV, ca 1990
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Microfilme. Valencia: BV, ca 1990
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Microfilme. Valencia: BV, ca 1990
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Microfilme. Valencia: BV, ca 1990