Suchergebnisse

Mexico, Venezuela and Brazil contribute about 30 percent of world production of heavy and extra heavy crude oil, estimated at around 15 mb/d in 2012. Each of these three countries has a distinctive future production profile. Latin America will continue to run a surplus of heavy crude, but the supply of these types of grade will be increasingly restricted, either as a result of the natural decline in its fields, lack of investment, limited access to technology, political uncertainties or particular strategies in the energy sector leading to increasing domestic demand. This article explores some of the reasons behind the supply slowdown of heavy crude oil expected in each of these Latin American countries and some consequences in the international oil market over the next few years.

Abstract. The diversion of natural river courses and subsequent filling by alluvial deposits or anthropic intervention has been hidden by urban development in the majority of the cities. The research we conducted involved monitoring the evolution of a river course and reconnaissance of the original morphology of the fluvial systems. Our research was applied to the section of the River Beiro that flows through the city of Granada, Spain. The research has been carried out using geo-technical methodology based on reconnaissance via dynamic penetration. This allowed us to determine the different degrees of consolidation and compaction in the areas corresponding with the former course of the river, which are now filled by alluvial deposits. In addition, we have backed up our findings with information provided by historical maps of the city of Granada. The results have identified an area wherein buildings are at risk, as evidenced by the detrimental effects registered in the buildings in this area.

Objective: To provide an evidence-based clinical practice guideline for the screening of colon and rectal cancer for patients, caregivers, administrative and government bodies at all levels of care in Colombia. Materials and Methods: This guide was developed by a multidisciplinary team with the support of the Colombian Association of Gastroenterology, Cochrane STI Group and Clinical Research Institute of the Universidad Nacional de Colombia. Relevant clinical questions were developed and the search for national and international guidelines in databases was performed. Existing guidelines were evaluated for quality and applicability. None of the guidelines met the criteria for adaptation, so the group decided to develop a de novo guideline. Systematic literature searches were conducted by the Cochrane Group. The tables of evidence and recommendations were made based on the GRADE methodology. The recommendations of the guide were socialized in a meeting of experts with government agencies and patients. Results: An evidence-based Clinical Practice Guidelines for the screening of colorectal cancer was developed for the Colombian context. Conclusions: The opportune detection of colon cancer would have an impact of the disease in Colombia. © 2015 Asociaciones Colombianas de Gastroenterología, Endoscopia digestiva, Coloproctología y Hepatología.