Posterior a la Segunda Guerra Mundial, los directivos de las empresas japonesas se vieron en la necesidad de mejorar sus niveles de productividad, de encontrar técnicas de gestión empresarial que le permitan hacer mucho con poco. La aplicación de la metodología 5S fue una de las metodologías aplicadas, teniendo un impacto positivo, se extendió a otros países asiáticos y occidentales. El Organismo Supervisor de Inversión Privada en Telecomunicaciones tiene función reguladora, normativa, supervisora, fiscalizadora y sancionadora y de solución de controversias de reclamos, con la misión de promover la competencia del mercado de telecomunicaciones, calidad de los servicios de telecomunicaciones y el empoderamiento del usuario de manera continua, eficiente y oportuna. El presente trabajo de suficiencia profesional se basa en la aplicación de la metodología 5 S para mejorar la ge...

El presente trabajo de investigación tuvo por objetivo determinar la influencia de la pirólisis de lodos residuales de acuicultura en la calidad del biocarbón como enmienda de suelo. La metodología de la investigación es de enfoque cuantitativo, tipo básico y nivel explicativo. Se obtuvieron muestras de lodos residuales de acuicultura de una piscigranja de truchas (Salmo trutta) ubicada en la Comunidad Pariamarca, Canta - Lima; éstas fueron previamente secadas y tamizadas, para posteriormente llevar a cabo el proceso de pirólisis en un reactor pirolítico de 5 litros de capacidad a temperaturas de 500 y 700 °C con un tiempo de retención de 1 hora. La calidad del biocarbón como enmienda de suelo se determinó a través de sus propiedades fisicoquímicas (pH, conductividad eléctrica, carbono orgánico, relación H:Corg, nitrógeno total, potasio total, fósforo total, humedad, ...

El objetivo general del presente trabajo de investigación es “Analizar la influencia del capital Humano y la Tecnología, en la Capacidad Resolutiva de los Servicios de Salud, en los Hospitales de EsSalud de la Región Huánuco. Específicamente; Se ha analizado la influencia del capital Humano y la Tecnología, en la Capacidad Resolutiva de los Servicios de Salud, en los Hospitales de ESSALUD de la Región Huánuco, que en opinión de los asegurados y del personal, dependen del capital humano y de la tecnología. Se ha analizado la influencia del capital Humano y la Tecnología, en la Capacidad Resolutiva de los Servicios de Salud, en Hospitales ESSALUD de la Región Huánuco, cuya inversión en el capital humano en promedio es del 84.75%, mientras que en la tecnología del 15.25%. Se ha estimado la influencia del Capital Humano en la Capacidad Resolutiva de los Servicios de los Hosp...

The success of endodontic treatments depends both on a good conformation of the root canals and on the correct disinfection of the pulp space, since the organisms that live in the walls of the root canals can survive as monocultures. Mechanics of lipopolysaccharides is the use of irrigators such as sodium hypochlorite which is one of the most widely used irrigators for the disinfection of root canals as it allows us to dissolve organic tissues in addition to their strong antimicrobial activity, chlorhexidine that has biocompatible characteristics in addition to Two characteristics useful at the time of disinfection of the root canal, such as sustainability and its antimicrobial action or ethylenediaminetetraacetic acid (EDTA), which has chelating characteristics that allow the elimination of the smear layer or dentin barrel product of mechanical instrumentation Of the root canals as well...

Cinchona officinalis es una importante especie vegetal, fue el único tratamiento para la malaria durante más de tres siglos. El objetivo de este estudio fue comparar la precisión de cuatro métodos no destructivos de procesamiento digital de imágenes (LeafArea y tres algoritmos de ImageJ) para estimar el área foliar de plantaciones jóvenes de C. officinalis en dos condiciones de establecimiento: macizo forestal y franjas de enriquecimiento. Se fotografiaron hojas a 8 cm de distancia utilizando un smartphone de 24 MP y se procesaron con los métodos evaluados. El análisis estadístico incluyó diagramas de caja y bigotes, correlación de Pearson y prueba de Friedman. Los resultados mostraron que los métodos M3 y M4 de ImageJ presentaron la mayor precisión (r = 0,99), sin diferencias significativas entre ellos, y con sobreestimaciones detectadas en M1 y M2. Se concluye que M3 y M4...

The rice–fish farming system is an efficient ecological model with economic, ecological, and social benefits, reduces environmental impacts and optimizes the use of resources. The objective of the research was to explore and analyze scientific publications through a systematic review and meta-analysis related to rice–fish intercropping. A review of publications hosted in the Scopus and PubMed database from January 2000 to April 2025 was conducted. Research articles were selected, excluding review articles, com-mentaries, book chapters, and letters, and only documents published in English were analyzed. The analysis shows that the countries with the highest number of publications were China and Bangladesh, with a proportion of 48% and 24% respectively, followed by Thailand with 10% and Pakistan, Indonesia, Malaysia, and India with 5% each. The fish species used in rice–fish systems ...

Cinchona officinalis, known locally as cascarilla or cinchona, is a plant species native to South America. It was used as a source of quinine to combat malaria in the 17th century. The species is threatened by various anthropogenic activities. Further, the propagation of the species depends on seed dispersal and its germination capacity. Therefore, it is necessary to conserve and propagate this species. Because C. officinalis seeds have a low germination capacity, we determined the effect of arbuscular mycorrhizae (AM) on their germination and growth. A randomized design was employed with two treatments, one treated with mycorrhizae (CM) and another without mycorrhizae (SM). For each treatment, three replicates of 100 seeds were used. Germination, growth, and fungal characteristics were evaluated. In germination parameters, the CM treatment showed better performance, but the improvement ...

The Shumba watershed, located in the province of Jaén, played an essential role in the ecological balance and water supply of the region. The objective of this study was to analyze changes in land cover and land use between 1998 and 2024, using spectral indices of vegetation, soil, and water derived from Landsat 5 and 8 images. The processing was performed in Google Earth Engine and ArcGIS 10.5, applying the Random Forest algorithm for supervised classification. The results indicate an increase of 2708.11 ha in the category “Mosaic of crops, pastures and natural spaces” and 122.50 ha in “Continuous urban fabric”. In contrast, reductions were recorded in “Shrub/herbaceous vegetation” (- 1867.32 ha), “High dense forest” (-462.86 ha), “Transient crops” (-446.25 ha), and “Bare land” (-54.17 ha). Validation of the classification yielded an overall accuracy of 0.90 and...

Climate change is one of the main global challenges, addressed in the United Nations Sustainable Development Goal (SDG) 13, which seeks to "take urgent action to combat climate change and its impacts". The objective of the research was to analyze scientific articles that directly relate to SDG 13 through a bibliometric analysis for the period 2015 to 2024 of the Scopus database using the search term “SDG 13” OR “Sustainable Development Goal 13”. The research identified prolific authors, articles, sources with the highest impact in the area of study, leading institutions and countries in publications along with a detailed keyword analysis. The results show that interest in the study of SDG 13 has grown significantly with a focus on areas such as mitigation and adaptation, low carbon economy and public policy. This analysis provides an overview of advances in SDG 13 research, helps...

Climate change is one of the main global challenges, addressed in the United Nations Sustainable Development Goal (SDG) 13, which seeks to “take urgent action to combat climate change and its impacts”. The objective of the research was to analyze scientific articles that directly relate to SDG 13 through a bibliometric analysis for the period 2015 to 2024 of the Scopus database using the search term “SDG 13” OR “Sustainable Development Goal 13”. The research identified prolific authors, articles, sources with the highest impact in the area of study, leading institutions and countries in publications along with a detailed keyword analysis. The results show that interest in the study of SDG 13 has grown significantly with a focus on areas such as mitigation and adaptation, low carbon economy and public policy. This analysis provides an overview of advances in SDG 13 research, h...

The rice–fish farming system is an efficient ecological model with economic, ecological, and social benefits, reduces environmental impacts and optimizes the use of resources. The objective of the research was to explore and analyze scientific publications through a systematic review and meta-analysis related to rice–fish intercropping. A review of publications hosted in the Scopus and PubMed database from January 2000 to April 2025 was conducted. Research articles were selected, excluding review articles, com-mentaries, book chapters, and letters, and only documents published in English were analyzed. The analysis shows that the countries with the highest number of publications were China and Bangladesh, with a proportion of 48% and 24% respectively, followed by Thailand with 10% and Pakistan, Indonesia, Malaysia, and India with 5% each. The fish species used in rice–fish systems ...