Suchergebnisse

Se publica la revision confidencial del acuerdeo suscrito entre el gobierno panameno y el Banco Mundial el 28 de junio de 1996, que pretende servir de guia a la politica de ajuste de la economia nacional. En la presentacion del documento, el autor expresa su opinion que tal rearticulacion de los acuerdos financieros tiene como objetivo transferir los frutos de las labores de los trabajadores panamenos a los propietarios de grandes capitales nacionales y extranjeros. (Tareas/DÜI)

Este texto analiza el cáncer en los últimos años. Según la American Cancer Society, en América aproximadamente 76 millones de personas están expuestas a padecer de cáncer para los próximos años. En 1985 más de 870,000 personas fueron diagnosticadas con cáncer. Aproximadamente 45,000 personas mueren cada año a consecuencia de cáncer; esto es un promedio aproximado de 1,230 personas diarias. Estas cifras cada vez son más dramáticas, es por esto que hoy en día existe la necesidad de desarrollar investigaciones y técnicas basadas en datos controlados y no anecdotarios para pacientes cancerosos.

The explosive growth of swine production at high stocking densities in confinement farming worldwide, has raised concerns the environmental impact, health and livestock productivity and the production of associated gases in this type of large-scale farms. The aim of this paper was to study the methane gas concentration and emissions of ten different typologies of swine production installations. The facilities were in the department of Antioquia - Colombia, they were located between 800–2,300 meters above sea level (m.a.s.l.) of heights, they mainly employed natural ventilation as refrigeration strategy and they were used for pigs in fattening stage. Methane measurements were taken at animal height. Sensors were located at intermediate points of the ventilation inlet and outlet areas. The behaviour of methane concentration and emission of the facilities were analysed along with the correlation and temporal evolution of climatic variables, comfort indices and construction typologies. The information was analysed using descriptive statistics, analysis of variance (ANOVA) and principal component analysis (PCA). Were found an average of CH4 Emission Rate (ER) per facility (kg year-1 ) of 607.9, Global Warming Potential (GWP) per facility (kg year-1 ) of 15,197.42 and significant correlations between ER and cleaning frequency (CF), animal unit (AU), air flow (Q), animal density(AD) and relative humidity (RH) were evidenced. This is the first research reported in Colombia, that will be important to create some governmental policies.