Calming down the seas: the near collapse of an Atlantic coastal fishery

For years now the estimates of the consequences of overfishing for marine ecosystems have differed greatly within the scientific community^1^. The use of commercial catch statistics to estimate tendencies has been much criticised^2^, but alternative information sources with long time series are rare. Here we employ the historic archive (1953-2007) of the recreational spearfishery in Galicia (NW Spain), which does not have the problems common to other fishery registers, to estimate long-term changes in coastal ecosystems. Using generalized additive regression models (GAM) we estimated decreases of around 83% in the abundances of coastal fish over the last 50 years. In the same period the average body size decreased by 36%. In addition, the relative catch frequency has decreased for the most valuable commercial species. Commercial overfishing has brought these ecosystems so close to the brink of collapse that it is necessary to implement measures that ensure their recovery

Manipulations, de Vito Acconci: un juego de espejos

Introdución a la obra visual de Vito Acconci. En el presente trabajo interesa tratar una serie de tres videos nombrada Three Relationship Studies (1970), compuesta por Shadow-Play, Imitations y Manipulation, haciendo especial énfasis en ésta últma pieza

Doctor of Philosophy

dissertationDual language (DL) research tends to overlook the bicultural goal in DL, as well as social justice issues, with little research showing how and if DL teachers develop biculturalism and sociopolitical consciousness in their students. This study employs a critical sociocultural theoretical framework and combines DL education with culturally relevant pedagogy (CRP) in order to explore DL teachers' CRP beliefs and practices in a collaborative action research (CAR) process, as well as how these beliefs and practices relate to each other in a DL context. This study examines how the CAR process happened over time by DL teachers and the researcher as they explored and developed their CRP beliefs and practices. This study was conducted at an urban elementary K-6 school with a Spanish-English DL program in Salt Lake City. Eight DL teachers participated in this study during the 2012-2013 school year. The main methods were pláticas (informal conversations), classroom observations, and collection of documents. The data were mainly analyzed through a thematic analysis approach. Chapter Four discusses methodological findings, which point to the fluidity of the CAR process: First, the CAR phases proved to be nonlinear, overlapping, and messy throughout the study; and second, the activities of the CAR process changed over time based on teachers' needs and goals. The changes in the CAR phases and in the activities included complexities, challenges, and tensions, which were partially supported by what I call friendly resistance

Elaboración de una guía para invertir intradía en el mercado de divisas: evidencias desde la práctica

En este trabajo de fin de grado se ha diseñado una guía para inversores con interés en el mercado de divisas. Para ello, hemos comenzado una breve explicación del mercado de divisas, para posteriormente implicarnos en la elaboración de una metodología de inversión, desarrollada a partir del diseño de estrategias y experimentación de diferentes técnicas, que permita a un inversor con pocos conocimientos aprender y desarrollar por sí mismo estrategias de inversión intradiarias en divisas.Universidad de Sevilla. Grado en Finanzas y Contabilida

¿Es la aplicación de las técnicas administrativas, un elemento determinante que garantiza el éxito en los microempresarios de la ciudad de Quito?

El presente trabajo pretende comprobar la hipótesis: ¿Es la aplicación de las técnicas administrativas, un elemento determinante que garantiza el éxito en los microempresarios de la ciudad de Quito? en este afán, la investigación parte de la recolección de datos obtenidos de fuentes primarias, tanto de encuestas de campo realizadas en el sur de ciudad de Quito y Valle de Los Chillos así como del análisis de base de datos de clientes de crédito de una cooperativa de ahorro y crédito controlada por la Superintendencia de Bancos y Seguros. El estudio se circunscribe a relacionar el nivel de educación de los microempresarios analizados con la generación de óptimos resultados económicos en su gestión. Posteriormente se analizan las principales técnicas de administración aplicadas en la práctica del manejo diario de sus negocios. Finalmente se esgrimen las conclusiones del estudio que revelará importantes aportes a la comprobación de la hipótesis planteada