El discurso sobre la victimización de la mujer afgana como estrategia y justificación para la permanencia de las tropas estadounidenses en Afganistán (2001-2013)

La presente investigación pretende demostrar que la principal estrategia estadounidense para justificar su intervención y permanencia en territorio afgano ha sido el discurso. Donde se pueden identificar dos etapas a lo largo de esta última década. Inicialmente para explicar su incursión en Afganistán se utilizó el discurso de la seguridad y la guerra contra el terrorismo, años después frente al agotamiento y la critica tanto interna como internacional, el tema de la situación de la mujer en Afganistán cobra mayor importancia y con ello a través de los diferentes pronunciamientos y la exposición de casos específicos los diferentes gobiernos intentan cohesionar la opinión internacional y nacional frente a la necesidad de permanecer con sus tropas en el territorio.

Análisis de la política exterior norteamericana hacia Turquía, en materia de seguridad, y su influencia en el Kurdistán. Periodo 2003-2009

Este estudio tiene como objetivo analizar los elementos que articulan la Política Exterior de los Estados Unidos hacia Turquía, en materia de seguridad, y su influencia en el Kurdistán, ya que en el periodo 2003-2009 se presentaron acontecimientos que marcaron la vida política, económica, militar y social de la región del Medio Oriente, caracterizado por la presencia de los Estados Unidos. Esta investigación se desarrollara de acuerdo con el modelo de monografía, para dar un análisis teórico sobre el tema delimitado anteriormente. Se espera que el presente estudio sirva para que el lector comprenda las diferentes actuaciones de los Estados Unidos en el escenario internacional, para la consecución de sus intereses y que tenga un acercamiento en las diferentes relaciones entre los Estados para entender mejor los acontecimientos que se presentaron en el periodo a analizar.

Aral : un mar sin agua.

Programa emitido el 18 de marzo de 1996

Sobre el maniqueísmo.

Resumen tomado de la revista. Resumen en castellano e inglés

Flood risk and climate change: global and regional perspectives

A holistic perspective on changing rainfall-driven flood risk is provided for the late 20th and early 21st centuries. Economic losses from floods have greatly increased, principally driven by the expanding exposure of assets at risk. It has not been possible to attribute rain-generated peak streamflow trends to anthropogenic climate change over the past several decades. Projected increases in the frequency and intensity of heavy rainfall, based on climate models, should contribute to increases in precipitation-generated local flooding (e.g. flash flooding and urban flooding). This article assesses the literature included in the IPCC SREX report and new literature published since, and includes an assessment of changes in flood risk in seven of the regions considered in the recent IPCC SREX report—Africa, Asia, Central and South America, Europe, North America, Oceania and Polar regions. Also considering newer publications, this article is consistent with the recent IPCC SREX assessment finding that the impacts of climate change on flood characteristics are highly sensitive to the detailed nature of those changes and that presently we have only low confidence1 in numerical projections of changes in flood magnitude or frequency resulting from climate change.

Rheology and fluid dynamics properties of sugarcane juice

The sugarcane juice is a relatively low-cost agricultural resource, abundant in South Asia, Central America and Brazil, with vast applications in producing ethanol biofuel. In that way, a good knowledge of the rheological properties of this raw material is of crucial importance when designing and optimizing unit operations involved in its processing. In this work, the rheological behavior of untreated (USCJ, 17.9 °Brix), clarified (CSCJ, 18.2 °Brix) and mixed (MSCJ, 18.0 °Brix) sugarcane juices was studied at the temperature range from 277K to 373K, using a cone-and-plate viscometer. These fluids were found to present a Newtonian behavior and their flow curves were well-fitted by the viscosity Newtonian model. Viscosity values lied within the range 5.0×10 -3Pas to 0.04×10 -3Pas in the considered temperature interval. The dependence of the viscosity on the temperature was also successfully modeled through an Arrhenius-type equation. In addition to the dynamic viscosity, experimental values of pressure loss in tube flow were used to calculate friction factors. The good agreement between predicted and measured values confirmed the reliability of the proposed equations for describing the flow behavior of the clarified and untreated sugarcane juices. © 2010 Elsevier B.V.

La seguridad vial en la región de América Latina y el Caribe: situación actual y desafíos

Incluye Bibliografía

The “Out of Africa Tribe” (II): Paleolithic warriors with big canoes and protective weapons

It is generally difficult to establish a timeline for the appearance of different technologies and tools during human cultural evolution. Here I use stochastic character mapping of discrete traits using human mtDNA phylogenies rooted to the Reconstructed Sapiens Reference Sequence (RSRS) as a model to address this question. The analysis reveals that the ancestral state of Homo sapiens was hunting, using material innovations that included bows and arrows, stone axes and spears. However, around 80,000 y before present, a transition occurred, from this ancestral hunting tradition, toward the invention of protective weapons such as shields, the appearance of ritual fighting as a socially accepted behavior and the construction of war canoes for the fast transport of large numbers of warriors. This model suggests a major cultural change, during the Palaeolithic, from hunters to warriors. Moreover, in the light of the recent Out of Africa Theory, it suggests that the “Out of Africa Tribe” was a tribe of warriors that had developed protective weapons such as shields and used big war canoes to travel the sea coast and big rivers in raiding expeditions.