Los incidentes y accidentes Laborales, se generan por la baja cultura de seguridad en una empresa, y las mineras se encuentran propensas a que sucedan incidentes y accidentes laborales, es más tienen que conocer las estadísticas de los accidentes, además este problema afecta a la persona o a la propiedad, o en algunos casos sólo es un incidente, que implica pérdida de recursos para mitigar las consecuencias de dicho suceso, por eso es que se planteó el siguiente problema ¿existe un impacto en la cantidad de incidentes y accidentes laborales desde la aprobación del Decreto Supremo 055-2010 EM de los cursos del Anexo 14B, Y es visible desde los años 2012 al 2016?, entonces el objetivó se centró en determinar la incidencia del Decreto Supremo 055-2010 EM de los cursos del anexo 14B en la reducción de incidentes y accidentes laborales en la Unidad Minera Cerro Corona, durante los...

El presente trabajo de investigación, denominado “Estrategias Comerciales para Disminuir los Costos Financieros de Edpyme Alternativa en la Provincia de Chiclayo durante el año 2016”, se realizó con la finalidad de determinar los problemas de costos financieros en dicha empresa y al mismo tiempo proponer estrategias para la reducción de los mismos. Se estableció como objetivo general: Desarrollar estrategias para disminuir los costos financieros de Edpyme Alternativa en la provincia de Chiclayo durante el año 2016. El tipo de investigación asumida fue Descriptiva y Propositiva, con diseño No Experimental, donde se aplicó un diseño muestral probabilístico el cual estuvo orientado a los Colaboradores de Edpyme Alternativa de la Provincia de Chiclayo y a los Clientes Potenciales, determinándose como muestra 51 de una población de 368 colaboradores y una muestra de 382 de un...

In the present study, the treatment of dairy industry wastewater using bacterial biomass isolated from eutrophic lake sediments was carried out to produce water for agricultural use. Microorganisms were isolated from lake sediment to establish bacterial consortiums efficient in the removal of organic matter from dairy wastewater. The nature of the effluents varied according to the treatment system and parameter evaluated. In the anaerobic treatment, chlorides, sulfates, phosphates and chemical oxygen demand recorded the highest average values. In the aerobic treatment, turbidity, electrical conductivity, ammonium, total suspended solids and biochemical oxygen demand recorded the highest average values.

Toxic metal contamination, distribution and risk were evaluated in the sediments of three lagoons used for fish farming in the central region of Peru. The distribution of toxic metals in the sediment was in the following descending order of Zn > V > Ni > Cu > Pb > As > Cr > Co > Cd > Sb. Contamination factor (Cf) and geoaccumulation index (Igeo) values for Co, Cr, Cu, Ni, Pb, Sb, V and Zn indicated low contamination and for Cd moderate contamination. The pollution load index (PLI) ranged from 0.3856 to 0.5622; indicating no appreciable contamination and the modified degree of contamination (mCd) corroborated this result.

This article contains data on the bacterial communities of lagoon sediments with fish potential in the Central Andes of Peru. The surface sediment samples were collected from four lagoons destined for continental water fish farming. DNA extraction was performed from 0.5 g of sample through the Presto(TM) Soil DNA Extraction Kit. Bacterial sequencing of the 16S rRNA amplicon was performed on the DNA extracted from the sediment. At least 36 Phyla bacteria were detected, the bacterial communities being dominated by Proteobacteria, Cyanobacteria, Actinobacteria, Firmicutes, Chloroflexi. These data can be used for predictive analysis to gain a better understanding of the dynamics of bacterial communities in environments under pressure from fish farming. (C) 2020 The Author(s). Published by Elsevier Inc.

The cumulative effects of anthropogenic stress on freshwater ecosystems are becoming increasingly evident and worrisome. In lake sediments contaminated by heavy metals, the composition and structure of microbial communities can change and affect nutrient transformation and biogeochemical cycling of sediments. In this study, bacterial and archaeal communities of lake sediments under fish pressure contaminated with heavy metals were investigated by the Illumina MiSeq platform. Despite the similar content of most of the heavy metals in the lagoon sediments, we found that their microbial communities were different in diversity and composition. This difference would be determined by the resilience or tolerance of the microbial communities to the heavy metal enrichment gradient.