The Annapolis-Cornwallis Valley Aquifer Study was a regional hydrogeological study focusing on major aquifer units of the most important agricultural area of Nova Scotia. The study area covered 2100 km2, and included sedimentary rocks of the Wolfville and
Blomidon formations, as well as part of the North and South mountains bordering the valley. The surficial sediment cover is mainly composed of glacial tills, but sand and gravel units are also present in the eastern part of the valley. The main objectives of this project were to improve the general
understanding of groundwater flow dynamics and to provide baseline information and tools for a regional groundwater resource assessment.
The main bedrock aquifers of the Valley are located in the Wolfville and Blomidon formations, which are composed of lenticular bodies of sandstone, conglomerate, shale and siltstone in variable proportions. The aquifers are often confined and the flow is topographically-driven. Their hydraulic
conductivities are in the range of 10-6-10-5 m/s. Good aquifers, though limited in extent, can also be found in the sand and gravel units, with hydraulic conductivities on the order of 10-4 m/s. Groundwater recharge was estimated to range between 115 and 224 mm/a over the entire study area. The
vulnerability study showed that bedrock aquifers are typically less vulnerable than surficial aquifers, with the Wolfville Formation being the most vulnerable bedrock formation. Groundwater of the Valley is generally of good quality, although nitrate levels are of concern in several
areas.
A partir del análisis de la información recabada en diagnósticos participativos comunitarios realizados en 2011, este artículo describe formas, actores, lugares de discriminación y estigma padecidos en varias regiones metropolitanas de México por personas transexuales, travestis, gays y bisexuales, así como personas infectadas por el VIH. Se muestra cómo la violencia hacia dichas poblaciones es ejercida, reproducida y legitimada desde instituciones públicas, e interiorizadas por las propias minorías sexuales. Según se argumenta, la discriminación institucionalizada, la interiorización del estigma y la desinformación en relación a la salud sexual y prevención de VIH, conllevan una vulneración en términos de salud, acceso a servicios de justicia y defensa de derechos humanos. También favorecen una mayor segregación urbana y legitiman indirectamente el statu-quo social en el espacio urbano.
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