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In this article the problem of discovery screens addressed, although it is known, at home, public places such as shopping centers, bus stops, even trucks with advertising, are equipped with screens, which is not achieved use all the potential that can have, for this reason the objective of this work is to build a system that enables the discovery of screens between Smartphone and Smart TV via UPnP (Universal plug and play) protocol to Android TV. UPnP is a protocol where discovery of devices that are present on a network; For the user through your Smartphone can find, connect to the available screens to interact with them.

In the present study the genetic diversity and population structure of 36 accessions of guava in the municipality of Tierralta - Córdoba was evaluated using seven microsatellite markers. Aim. This study aimed to evaluate the genetic diversity and population structure of guava (P.guajava) in the municipality of Tierralta –Cordoba using microsatellite type molecular markers. Materials and Methods. The study was carried out from 36 samples of young leaves, the DNA of each sample was extracted by the Mini-prep method with modifications. The seven microsatellite markers were amplified by means of the PCR Touchdown technique, then analyzed on 8% polyacrylamide gel in a vertical electrophoresis chamber. Population genetic parameters: Number of alleles (Na), Effective number of alleles (Ne), Observed heterozygosity (Ho), Expected heterozygosity (He), Fixation index (F), Hardy-Weinberg equilibrium (EHW) and Analysis of molecular variance (AMOVA), were calculated with the GenAlEx 6.5 program, the Polymorphic Information Content (PIC) was determined from Cervus 3.0.7 software. The analysis of the population genetic structure was carried out with the Structure 2.3.4. The Delta-K value was determined in the Structure Harvester software. Results. In the populations studied, an average of 4.0 alleles 5 per locus is found. The average value of the effective number of alleles was 1,345, it was found that the level of expected heterozygosity (He) in guava accessions was 0.175, higher value than the observed heterozygosity (Ho) with an average of 0.075. For the fixation index (F), an average of 0.479 was established. In the Hardy-Weinberg Balance, specific differences were found in the markers. The fixation coefficient of an FIS individual presented average value 0.480, the fixation coefficient of an individual within the total FIT population, presented an average of 0.671 and the value of the fixation coefficient of a subpopulation within the total FST population was 0.404. The value of the analysis of molecular variance (AMOVA) revealed that the greatest molecular variance occurred among individuals with (95%).

In this work, a comparison was made of the concentration of PM10, PM2.5 and CO emissions that stimulate the deterioration of air quality, measured and analyzed by SISARIE through the monitoring network present in the city's stations. of Montería. In order to determine the areas with the highest concentration of polluting particles by means of the air quality index (AQI) using the IDW interpolation method in the ArcGis software tools. Likewise, it will determine the influence of factors such as vehicular flow, vegetation, demographics, etc. in the values recorded around the monitoring stations

Todos los procesos investigativos se han convertido en elementos fundamentales para la ejecución de actividades cotidianas, empresariales, deportivas, entre otras. Por esta razón muchas instituciones se apoyan en trabajos investigativos antes de aplicar algún tipo de actividad que se relaciones con la salud, comportamiento humano, y demás condiciones actitudinales y físicas. En la pasantía realizada como opción de grado desarrollada en el primer semestre del año 2020, en la Universidad de Antioquia, se hicieron recopilaciones de datos poblacionales que guardaban estadísticas sobre los conflictos y avenencias que se han presentado durante los últimos años en la ciudad de Medellín. Las valoraciones se realizaron con el fin de conocer las principales razones que ocasionan discrepancias en esta población, las zonas más afectadas, y las políticas implementadas para ofrecer soluciones. Gracias a esto, se puede crear estrategias mediante un proyecto de investigación que generen conciencia a la búsqueda del dialogo como solución primera ante cualquier situación problemática, y prevenir o disminuir en un alto porcentaje los índices de violencia.