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OBJECTIVES: Implementing environmental surveillance for poliovirus circulating from wastewater.METHODS: Six wastewater samples were collected from each final site within a wastewater collection system in Armenia, Quindío. Virus was extracted and concentrated by a method using polyethylenglycol and sodium chloride as concentrating agent. Polioviruses were identified by polymerase chain reaction ass
Abstract in Spanish En este artículo se presenta el estudio preliminar para una tesis de doctorado en análisis conversacional del español, más específicamente sobre el uso de estrategias de atenuación en el español peninsular hablado de hablantes nativos y de aprendices suecos. El material estudiado fue extraído del Corpus AKSAM (Competencia discursiva y sociocultural en hablantes nativos y no nat
The rapid expansion of industrial agriculture in rural Bogotá has led to a reduction in the diversity of plants cultivated by peasant families. This generates transformations in livelihoods and biocultural relations, affecting local environmental knowledge and practices for the use and management of agrobiodiversity. Although several studies have documented the presence of agrobiodiversity niches,
