Descripción: “...It took place by means of the implementation of surveys to a sample of 122 companies, which allowed getting information about the economic subsector that after being analyzed through different monitoring tools and based on different information sources, problems related to growth and performance of their logistics activities were made evident. ...”

Descripción: “...Titulo en ingles:  Emerging viral diseases in Latin-American dairy cattletitulo en portugues:  Enfermidades virais emergentes em bovinos leiteiros na América LatinaResumen:  El propósito de este artículo es la actualización sobre algunas enfermedades virales de más reciente descubrimiento o nuevas variantes virales que afectan la producción de ganado de leche con especial referencia a América Latina La alta demanda de leche y sus derivados por una población humana, en constante crecimiento, podría ocasionar a corto plazo un desabastecimiento, incrementando los índices de desnutrición humana en muchos países Se requiere entonces, avanzar en los aspectos epidemiológicos, de diagnóstico y control de estas enfermedades con el objeto de limitar las pérdidas económicas ocasionadas a la industria láctea.Palabras clave: América latina, ganado lechero, enfermedades emergentesAbstract:  This paper was aimed at updating readers regarding some recently discovered viral diseases or new viral variants affecting dairy-cattle production, with special reference to Latin-America A growing human population’s high demand for milk and its derivatives around the world may lead to as hort-term shortage, thereby increasing human malnutrition indices in many countries Progress must thus be made in epidemiology, diagnosis and monitoring to limit the dairy industry’s financial losses caused by these diseases.Key words: Latin-America, dairy cattle, emerging diseaseResumo:  O propósito do artigo é a atualização sobre algumas doenças virais de recente descoberta ou novas variantes virais que afetam a produção de gado leiteiro com especial referência na América Latina A alta procura do leite e, seus derivados pela população humana em constante crescimento poderiam ocasionar no curto prazo desabastecimento, incrementando os índices de desnutrição humana em muitos países Requer-se então avançar nos aspectos epidemiológicos, de diagnostico e controle destas doenças com o objetivo de limitar as perdas econômicas ocasionada na indústria láctea.Palavras-chave: América latina, gado leiteiro, doenças emergentes ...”

Descripción: “...The matrix of the powders is based on ZnO doped with Bi, Mn and Sb and monitoring is made on intermediate and final stages of the process by x-ray diffraction and scanning electron microscopy. ...”

Descripción: “...En ambos casos, el cristal podía usarse alrededor de 100 ensayos sin pérdida apreciable de sensibilidad.Abstract: Detection and monitoring of the organophosphate insecticide chlorpyrifos are required to comply with the limits allowed under different laws of regulatory agencies. ...”

Descripción: “...Thus, their evaluation is necessary to obtain constant monitoring in which the frequency and variability are expressed efficiently. ...”