Propiedades tecnológicas de la fibra de Alpacas Huacaya blanca (Vicugna pacos) en la Comunidad de Chapimarca, Apurímac - Perú

In the Queulla sector, community of Chapimarca, province of Grau, Apurímac Region, the textile properties of the fibre of white Huacaya alpacas were determined, according to factors sex, body region and age group. The fibre analyses were carried out in the Fibre and Wool Laboratory of the National University of Huancavelica. The juvenile alpacas had a smaller fibre diameter (MDF), a higher comfort factor (FC), a higher yarn fineness (SF) and a better curvature index (IC) than the adult ones (p<0.05). Males presented better FC and yarn fineness (SF) than females (p <0.05). In general, the fibre of the rib area and the rump were of similar quality, but superior to the fibre of the shoulder (p<0.05). It is concluded that the fibre produced in the study is within the fibres of good quality.En el sector de Queulla, comunidad de Chapimarca, provincia de Grau, Región Apurímac, se determinaron las propiedades textiles de la fibra de alpacas Huacaya blancas, en función a factores sexo, región corporal y grupo etario. Los análisis de la fibra se realizaron en el Laboratorio de Fibras y Lanas de la Universidad Nacional de Huancavelica. Las alpacas juveniles presentaron un menor diámetro de fibra (MDF), mayor factor de confort (FC), mayor finura al hilado (SF) y mejor índice de curvatura (IC) que las adultas (p<0.05). Los machos presentaron un mejor FC y finura al filado (SF) que las hembras (p<0.05). En general la fibra de la zona del costillar y de la grupa fueron de similar calidad, pero superior a la fibra de la paleta (p<0.05), Se concluye que la fibra producida en la zona del estudio se ubica dentro de las fibras de buena calidad

A History of Chagas Disease Transmission, Control, and Re-Emergence in Peri-Rural La Joya, Peru

The historically rural problem of Chagas disease is increasing in urban areas in Latin America. Peri-rural development may play a critical role in the urbanization of Chagas disease and other parasitic infections. We conducted a cross-sectional study in an urbanizing rural area in southern Peru, and we encountered a complex history of Chagas disease in this peri-rural environment. Specifically, we discovered: (1) long-standing parasite transmission leading to substantial burden of infection; (2) interruption in parasite transmission resulting from an undocumented insecticide application campaign; (3) relatively rapid re-emergence of parasite-infected vector insects resulting from an unsustained control campaign; (4) extensive migration among peri-rural inhabitants. Long-standing parasite infection in peri-rural areas with highly mobile populations provides a plausible mechanism for the expansion of parasite transmission to nearby urban centers. Lack of commitment to control campaigns in peri-rural areas may have unforeseen and undesired consequences for nearby urban centers. Novel methods and perspectives are needed to address the complexities of human migration and erratic interventions