Solución de Dos Escenarios Presentes en Entornos Corporativos Bajo el Uso de Tecnología CISCO

ANEXO 1 Enlace de descarga de archivos de simulación https://drive.google.com/drive/folders/1iKpDVAv1Ei-HjCt_yU5HJdPRsROnvRmm?usp=sharing ANEXO 2 Enlace Artículo Científico IEEE https://drive.google.com/file/d/13uIqsLFFvlAAWnpOWvQRDw5SGYPDk9o8/view?usp=sharingEl presente trabajo ha sido elaborado con el fin de poner en práctica los conceptos de cada una de las unidades del diplomado, el manejo y la utilización de software que simulan la realidad a la que nos vamos a enfrentar como Ingenieros, se presentan dos (2) escenarios que evidencian la ejecución, manejo y administración de redes mediante la aplicación de cada uno de los pasos que se desarrollan en cada ejercicio; en el escenario 1es necesario configurar los dispositivos de una red pequeña. Es de obligatorio cumplimiento configurar un router, un switch y cada uno de los dispositivos que admitan la conectividad IPv4 como IPv6 para los hosts soportados, los cuales deben ser administrados de tal forma que tengan un buen nivel de seguridad realizando el enrutamiento VLAN, DHCP, Etherchannel y port-security. En el siguiente escenario No dos (2) se verificarán los comandos aprendidos y se aplicarán en los protocolos exigidos para el cumplimiento de los procedimientos tal como OSPF, DHCP.This work has been prepared in order to put into practice the concepts of each of the units of the diploma, the management and use of software that simulates the reality that we are going to face as Engineers, two (2) scenarios that show the execution, management and administration of networks through the application of each of the steps that are developed in each exercise in scenario 1 it is necessary to configure devices on a small network. It is mandatory to configure a router, a switch and each of the devices that support IPv4 and IPv6 connectivity for the supported hosts, which must be managed in such a way that they have a good level of security by performing VLAN, DHCP, Etherchannel and routing. port-security. In the following scenario, the commands learned will be verified and they will be applied in the protocols required to comply with the procedures such as OSPF, DHCP

Trasmisión adaptativa de video sobre redes definidas por software

This paper presents the results of a study on the evaluation of adaptive transmission of video streams using the DASH technique on Software Defined Networks. There are also presented in this document, the description of the tools required for the implementation of the evaluation, as well as a description of the methodology used for the development of the experiments. In addition, the results of an adaptive transmission of a video by using DASH are presented. This transmission was carried out over a software defined network emulated on MININET. The results show that DASH technique easily allows to implement video streaming services that can adapt the quality of the transmission according to the resources available in the network.En este artículo se presentan los resultados de un estudio relacionado con la evaluación de la transmisión adaptativa de flujos de video usando el estándar DASH sobre escenarios de redes definidas por software. Dentro de los aspectos que se presentan en este documento está la descripción de las herramientas software necesarias para la implementación de la evaluación, así como la metodología de uso de estas. Además, se presentan los resultados de un experimento de emulación de una topología de red definida por software en la plataforma MININET y la transmisión adaptativa de un video mediante DASH. Los resultados muestran que la técnica DASH permite fácilmente la implementación de servicios de video streaming que son capaces de adaptarse a los recursos disponibles en la red. También se resalta la facilidad de experimentar con las redes definidas por software en la plataforma de emulación utilizada y la configuración de servicios multimedia sobre este tipo de redes

El viaje íntimo en búsqueda de lo sagrado: La renovación del universo en las Cábalas del sueño de Olga Acevedo

Within the literary project of the Chilean poet Olga Acevedo, Las cábalas del sueño, the seventh collection of poems originally published in 1951 and republished in 2019, shows a poetic-philosophical itinerary in gradual transition from individual unity to spiritual totality, including, in this journey, sufferings and intimate longings born from an intense process of self-reflection and initiation. In this article we will posit that, through this poetic proposal, the author opens an innovative route in the Chilean imaginaries of the first half of the 20th century, creating a poetic cartography centered around female spiritual evolution. We will attend to this phenomenon through an analysis focused on the female experience of Campbell’s “mythic journey”, conceptualizing it as a strategy to frame the exploration of the subjectivity of the lyrical speaker. In order to do this, the analysis will be structured in four stages, or phases, through which the poetic transit is carried out in order to elucidate the transformations that the speaker undergoes on her way to accomplish an intimate experience linked to the sacred and to the potential encounter with divinity, the ultimate goal of the Acevedian poetic project.Dentro del proyecto literario de la poeta chilena Olga Acevedo, Las cábalas del sueño, séptimo poemario publicado originalmente en 1951 y reeditado en 2019, da cuenta de un itinerario poético-filosófico en tránsito gradual desde la unidad individual hacia la totalidad espiritual, incluyendo, en este viaje, sufrimientos y anhelos íntimos nacidos de un intenso proceso de autorreflexión e iniciación. En el presente artículo postulamos que, a través de esta propuesta poética, la autora abre una ruta innovadora en los imaginarios chilenos de la primera mitad del siglo XX, creando una cartografía poética gestada a partir de la evolución espiritual femenina. Atendemos a este fenómeno a través de un análisis enfocado en la experiencia femenina del conocido “viaje mítico” de Joseph Campbell, entendiéndolo como una estrategia diseñada para enmarcar la exploración de la subjetividad de la hablante lírica. El análisis está ordenado de acuerdo a cuatro estadios, o fases, por las cuales se realiza el tránsito poético, esto con el fin de dilucidar las transformaciones que sufre la hablante en su camino hacia una experiencia íntima vinculada a lo sagrado y al potencial encuentro con la divinidad, objetivo último de la lírica acevediana

ZigBee-based wireless sensor network localization for cattle monitoring in grazing fields

This paper presents the design of a localization scheme in wireless sensor networks (WSN) for cattle monitoring applications in grazing fields. No additional hardware was required for distance estimation since they were performed using the link quality indication (LQI), which is a standard feature of the ZigBee protocol. The ratiometric vector iteration (RVI) algorithm was implemented and modified to work with LQI measurements instead of the usual received signal strength indication (RSSI). Experimental results show acceptable localization performance given the requirements of usual cattle monitoring applications at low cost and low power consumption. © 2010 Elsevier B.V

The Challenge of Performance Evaluation in Colombia

Assessment is an integral component of education. In basic and secondary education in Colombia, these assessment processes are regulated with a training and competency approach. To evaluate competencies through performance, institutions must overcome some conceptual and methodological challenges that will allow them to move from theory to practice. In order to establish a conceptual framework of reference and describe current needs and trends, the review of the topic of performance evaluation was conducted through a qualitative-descriptive approach. To do this, 59 documents were recovered and analyzed from indexed databases (ScIELO, Redalyc, Dialnet, Publindex, Scopus, Ebsco and Google academic), subsequently they were synthesized under a matrix for six units of analysis. The findings show that, although standardized tests contain sufficient methodologies and techniques to evaluate performance, educational institutions do not receive clear and replicable technical guidelines. This fact reveals that it is necessary to qualify and contextualize institutions due to the complexity of the methodologies. Thus, it is necessary to articulate all levels of performance assessment that are regulated in the country, establish objective methodological proposals to construct performance levels and address the particular needs of curricular regulators and institutional contexts

Impact of COVID-19 on cardiovascular testing in the United States versus the rest of the world

Objectives: This study sought to quantify and compare the decline in volumes of cardiovascular procedures between the United States and non-US institutions during the early phase of the coronavirus disease-2019 (COVID-19) pandemic. Background: The COVID-19 pandemic has disrupted the care of many non-COVID-19 illnesses. Reductions in diagnostic cardiovascular testing around the world have led to concerns over the implications of reduced testing for cardiovascular disease (CVD) morbidity and mortality. Methods: Data were submitted to the INCAPS-COVID (International Atomic Energy Agency Non-Invasive Cardiology Protocols Study of COVID-19), a multinational registry comprising 909 institutions in 108 countries (including 155 facilities in 40 U.S. states), assessing the impact of the COVID-19 pandemic on volumes of diagnostic cardiovascular procedures. Data were obtained for April 2020 and compared with volumes of baseline procedures from March 2019. We compared laboratory characteristics, practices, and procedure volumes between U.S. and non-U.S. facilities and between U.S. geographic regions and identified factors associated with volume reduction in the United States. Results: Reductions in the volumes of procedures in the United States were similar to those in non-U.S. facilities (68% vs. 63%, respectively; p = 0.237), although U.S. facilities reported greater reductions in invasive coronary angiography (69% vs. 53%, respectively; p < 0.001). Significantly more U.S. facilities reported increased use of telehealth and patient screening measures than non-U.S. facilities, such as temperature checks, symptom screenings, and COVID-19 testing. Reductions in volumes of procedures differed between U.S. regions, with larger declines observed in the Northeast (76%) and Midwest (74%) than in the South (62%) and West (44%). Prevalence of COVID-19, staff redeployments, outpatient centers, and urban centers were associated with greater reductions in volume in U.S. facilities in a multivariable analysis. Conclusions: We observed marked reductions in U.S. cardiovascular testing in the early phase of the pandemic and significant variability between U.S. regions. The association between reductions of volumes and COVID-19 prevalence in the United States highlighted the need for proactive efforts to maintain access to cardiovascular testing in areas most affected by outbreaks of COVID-19 infection

Competitividad del Sistema de producción bovina de montaña SP4 como resultado de las prácticas de conocimiento local el caso del Corregimiento De Santo Domingo De Florencia-Caquetá

Se realizó una investigación para analizar el papel de las prácticas de conocimiento local en la competitividad de la producción bovina. Los predios a estudiar se seleccionaron tomando como criterio el que se encontraran ubicados dentro de zonas biofísicas homogéneas, priorizando como Estudio De Caso el área georeferenciada del denominado Sistema de producción bovina de doble propósito con tendencia al levante de crías en paisajes de montaña de clima cálido SP4 del departamento del Caquetá, según la clasificación de García y Colaboradores (2002). Para el desarrollo del trabajo se priorizaron cuatro objetivos específicos compuestos por: a) Identificar los parámetros productivos de las unidades ganaderas, b) Identificar conocimientos locales sobre mejoramiento genético, sanidad, manejo, reproducción, alimentación y nutrición bovina, c) Identificar recursos físico-bióticos locales usados en el proceso de producción y d) Identificar la eficiencia económica de las unidades ganaderas, El levantamiento de información se realizó a través de recorridos de observación directa, encuestas técnico-económicas, entrevistas de profundidad y entrevistas semiestructuradas . Con la ejecución del estudio se identificó que la competitividad de la actividad ganadera del SP4 puede favorecerse por el conocimiento y uso de recursos locales para cubrir algunos requerimientos, en especial de sanidad y alimentación animal, que los índices de eficiencia económica de la actividad ganadera constituyen una importante fuente de riqueza para la superación de la pobreza rural y subvención del conjunto de medios de vida y que el modelo de producción familiar campesina es quizás la principal fortaleza competitiva del sistema de producción, entre otros hallazgos.An investigation was conducted to analyze the role of local knowledge practices on the competitiveness of livestock production. As a Case Study, farms located in the area called System bovine dual purpose tending to raise offspring in mountain landscapes of warm weather SP4, department of Caquetá were selected, according to the classification of Garcia Et. Al. (2002), for the development of the study, four specific objectives were defined: a) Identify the production parameters of livestock units, b) Identify local knowledge on breeding, health, management, breeding, feeding and bovine nutrition, c) identify local physical and biotic resources used in the production process d) Identify the economic efficiency of livestock units. Data collection was conducted through direct observation tours, technical-economic surveys, depth interviews and semi-structured interviews. With execution of the study was identified that the competitiveness of the livestock SP4 may be encouraged by the knowledge and use of local resources, especially for needs of animal health and food, too, that the rates of economic efficiency of livestock are an important source of wealth for overcoming rural poverty and economic support to all livelihoods and that the model of peasant household production is perhaps the main competitive strength of the production system, among other findings

Adaptive video transmission over software defined networks

En este artículo se presentan los resultados de un estudio relacionado con la evaluación de la transmisión adaptativa de flujos de video usando el estándar DASH sobre escenarios de redes definidas por software. Dentro de los aspectos que se presentan en este documento está la descripción de las herramientas software necesarias para la implementación de la evaluación, así como la metodología de uso de estas. Además, se presentan los resultados de un experimento de emulación de una topología de red definida por software en la plataforma MININET y la transmisión adaptativa de un video mediante DASH. Los resultados muestran que la técnica DASH permite fácilmente la implementación de servicios de video streaming que son capaces de adaptarse a los recursos disponibles en la red. También se resalta la facilidad de experimentar con las redes definidas por software en la plataforma de emulación utilizada y la configuración de servicios multimedia sobre este tipo de redes.This paper presents the results of a study on the evaluation of adaptive transmission of video streams using the DASH technique on Software Defined Networks. There are also presented in this document, the description of the tools required for the implementation of the evaluation, as well as a description of the methodology used for the development of the experiments. In addition, the results of an adaptive transmission of a video by using DASH are presented. This transmission was carried out over a software defined network emulated on MININET. The results show that DASH technique easily allows to implement video streaming services that can adapt the quality of the transmission according to the resources available in the network

Competitividade das microempresas familiares. Análise pré e pós COVID 19 em Azogues, Equador.

The study of microenterprises is important because in the Ecuadorian context they represent more than 50% of the gross domestic product, that is why this research aims to analyze the competitiveness of family microenterprises in the Azogues canton in two time periods; pre and post pandemic COVID-19, which had a descriptive, longitudinal and correlational scope. On the other hand, the pre-pandemic information was taken from research conducted by the author of this study in 2020, while for the post-pandemic information a questionnaire designed by the author was used as an instrument, which was validated by Cronbach’s Alpha coefficient, presenting a result of 0.751 with a total of 15 items, demonstrating the reliability of the instrument. Among the main pre-pandemic results, it was found that competitiveness in that period of time was related to variables such as production and operation, quality assurance and marketing, while in the post-pandemic analysis it was found that competitiveness in that period of time was related to variables such as production and operation, quality assurance and marketing; While in the post-pandemic analysis, the competitiveness of family microenterprises in the Azogues canton is related to variables such as quality assurance, production and operation, human resources and environmental management, being the variables of quality assurance and production and operation constant in the two time periods, for this analysis the Sperman correlation was used and it is statistically significant since its p-value was less than 0. 05.El estudio de las microempresas es importante debido a que en el contexto ecuatoriano representan más del 50% del producto interno bruto, es por ello, que la presente investigación tiene como objetivo analizar la competitividad de las microempresas familiares del cantón Azogues en dos espacios de tiempo; pre y pos pandemia COVID-19, la cual tuvo un alcance descriptivo, longitudinal y correlacional. Por otro lado, la información pre pandemia se ocupó una investigación realizada por el autor del presente en el año 2020 mientras que para el levantamiento de la información pos pandemia se utilizó como instrumento un cuestionario diseñado por el autor, el mismo que fue validado por el coeficiente Alfa de Cronbach, presentando un resultado de 0,751 con un total de 15 ítems demostrando confiabilidad del instrumento. Entre los principales resultados pre pandemia se obtuvo que la competitividad en dicho periodo de tiempo estaba relacionada con variables como producción y operación, aseguramiento de la calidad y comercialización; mientras que, en el análisis pos pandemia la competitividad de las microempresas familiares del cantón Azogues está relacionada con variables como aseguramiento de la calidad, producción y operación, recursos humanos y gestión ambiental, siendo las variables de aseguramiento de la calidad y producción y operación constantes en los dos espacios de tiempo, para este análisis de utilizo la correlación de Sperman y la misma es estadísticamente significativa dado que su p-valor fue menor a 0,05.O estudo das microempresas é importante porque no contexto equatoriano elas representam mais de 50% do produto interno bruto, razão pela qual esta pesquisa visa analisar a competitividade das microempresas familiares no cantão de Azogues em dois períodos de tempo: pré e pós-pandemia COVID-19, que tinha um escopo descritivo, longitudinal e correlacional. Por outro lado, as informações pré-pandêmicas foram retiradas de uma investigação realizada pelo autor deste estudo em 2020, enquanto que para as informações pós-pandêmicas, foi utilizado como instrumento um questionário projetado pelo autor, validado pelo coeficiente Alfa de Cronbach, apresentando um resultado de 0,751 com um total de 15 itens, demonstrando a confiabilidade do instrumento. Entre os principais resultados pré-pandêmicos, verificou-se que a competitividade naquele período de tempo estava relacionada a variáveis como produção e operação, garantia de qualidade e marketing, enquanto que na análise pós-pandêmica verificou-se que a competitividade naquele período de tempo estava relacionada a variáveis como produção e operação, garantia de qualidade e marketing; Na análise pós-pandêmica, a competitividade das microempresas familiares no cantão de Azogues estava relacionada a variáveis como garantia de qualidade, produção e operação, recursos humanos e gestão ambiental, sendo as variáveis de garantia de qualidade e produção e operação constantes nos dois períodos de tempo. A correlação Sperman foi utilizada para esta análise e é estatisticamente significativa dado que seu valor de p era inferior a 0,05