Análisis de las propiedades mecánicas del ladrillo tipo bloque artesanal de concreto con adición de aserrín granulado Trujillo 2023

En el presente trabajo de investigación titulado “Análisis de las Propiedades Mecánicas del Ladrillo Tipo Bloque Artesanal de Concreto con Aserrín Granulado Trujillo 2023” se investigó el uso del ladrillo con aserrín granulado como material de construcción, ya que esto ayuda en gran parte al medio ambiente. Se planteo como objetivo: Comprobar si es posible la adición de aserrín granulado para fabricar ladrillo tipo bloque artesanal de concreto sin afectar sus propiedades mecánicas Trujillo 2023. Con un enfoque cuantitativo deductivo, según su propósito es básica y aplicada de carácter experimental, la población estimada fue el ladrillo tipo bloque artesanal convencional de concreto para muros de albañilería. Con una muestra serán 100 ladrillos con distintos porcentajes de 0%(patrón), 5%, 10% y 15% de aserrín granulado Para comprobar si es óptimo el uso de aserrín granulado en los ladrillos tipo bloque se hizo los ensayos de resistencia a la compresión, absorción, densidad y variación dimensional en el laboratorio. Cuyos resultados fueron analizados con las normas técnicas peruanas de unidades de albañilería y se comprobó que si es posible la adición de aserrín granulado para elaborar ladrillo tipo bloque de concreto en un 5 % para muros portantes

Negocio de E-Learning enfocado en el desarrollo de habilidades y exploración de intereses vocacionales para jóvenes

A nivel global, el mercado de e-learning alcanza ya cifras por encima de los 100 mil millones de dólares y las proyecciones indican que se triplicará en el plazo de cinco años (Toro Dupouy, 2020). Del mismo modo, en América Latina se espera que el mercado del e-learning genere ingresos de más de 3 mil millones de dólares para el 2023 (“Latin America E-Learning Market - Industry Outlook and Forecast 2018-2023”, 2018). Sin embargo, vemos que al año 2022, las plataformas de educación virtual en el mercado se encuentran dirigidas principalmente hacia adultos o jóvenes profesionales. Según el Sistema Nacional de Evaluación, Acreditación y Certificación de la Calidad Educativa (SINEACE, 2018), un 70% de estudiantes aún no sabe qué estudiar y aproximadamente solo un 30% de jóvenes ingresa a educación superior al terminar la secundaria. La presente tesis tiene como objetivo presentar el plan de negocios de Masterability, una plataforma de educación que busca ofrecer una experiencia de aprendizaje cercana y enriquecedora, de aplicación práctica para el desarrollo de habilidades y exploración de intereses de jóvenes estudiantes de 3ro a 5to año de educación secundaria, a través de internet, con excelente calidad de servicio y un enfoque sostenible. A lo largo de los siete capítulos de la presente tesis, se expondrá el origen y motivación del proyecto; el desarrollo del plan estratégico; el plan de marketing enfocado en los tres pilares de marca de cercanía, practicidad y enriquecimiento con publicidad en medios digitales para alcanzar los objetivos comerciales; el plan de operaciones con el detalle de la cadena de valor de la empresa; la estructura organizacional; y finalmente el plan económico financiero del negocio. Al concluir la evaluación económica-financiera observaremos que el proyecto de Masterability será viable con una inversión inicial de S/ 908,376 en un escenario pesimista. Esto otorga como resultado un VAN positivo en un periodo de análisis de cinco años, donde el WACC es 14.08% y la TIRE 44.34%.Globally, the e-learning market already reaches figures above 100 billion dollars and projections indicate that it will triple within five years (Toro Dupouy, 2020). Similarly, in Latin America, the e-learning market is expected to generate revenues of over $3 billion by 2023 (“Latin America E-Learning Market - Industry Outlook and Forecast 2018-2023”, 2018). However, we see that by 2022, virtual education platforms in the market are mainly targeted towards adults or young professionals. According to the National System of Evaluation, Accreditation and Certification of Educational Quality (SINEACE, 2018), 70% of students still do not know what to study and approximately only 30% of young people enter higher education after finishing high school. The objective of this thesis is to present the business plan of Masterability, an education platform that seeks to offer a close and enriching learning experience, with practical application for the development of skills and exploration of interests of young students from 3rd to 5th year of secondary education, through the Internet, with excellent quality of service and a sustainable approach. Throughout the seven chapters of this thesis, the origin and motivation of the project will be presented; the development of the strategic plan; the marketing plan focused on the three brand pillars of closeness, practicality and enrichment with advertising in digital media to achieve business objectives; the operations plan with the detail of the value chain of the company; the organizational structure; and finally, the economic-financial plan of the business. At the conclusion of the economic-financial evaluation we will observe that the Masterability project will be viable with an initial investment of PEN 908,376 in a pessimistic scenario. Therefore, resulting in a positive NPV in a five-year analysis period, where the WACC is 14.08% and the EIRR is 44.34%

Generando música a través de la Actividad Cerebral / Generating music through Brain Activity

El presente artículo muestra la forma en que las interfaces cerebro computador (BCI) pueden ser utilizadas para generar música. Para lograr lo anterior, se realiza una revisión de fuentes académicas que contienen definiciones esenciales relacionadas con ambas áreas del conocimiento; de esta forma se podrá establecerse un puente que permita la descripción de una herramienta computacional que permita cumplir con el objetivo planteado

Propuesta en Supply Chain Management y Logística en la empresa M&R Distribuciones y Servicios S.A

La mejora continua aplicada dentro de sus actividades comerciales se logra a partir del conocimiento de la red estructural de toda su cadena de suministros junto a la gestión de la relación con el cliente, satisfacción del cliente, gestión de la demanda y estrategias de aprovisionamiento y comercialización de sus productos por lo que es importante proponer un Supply Chain Management y Logística como una herramientas esencial dentro de las organizaciones para poder medir su nivel de eficiencia dentro de sus actividades internas, permitiéndoles conocer el grado de competitividad en el que se encuentran, además conocer las diferentes estrategias que implementa nuestra empresa en cuanto a distribución de mercancías, inventarios, gestión de transportes y de esta forma identificar las falencias y posibles acciones de mejora, razón por el cual se escoge La empresa M&R DISTRIBUCIONES Y SERVICIOS S.A. la cual se dedica en su actividad comercial a la distribución directa de materiales y accesorios para la construcción de proyectos/obras públicas y privadas en el departamento de Boyacá, relacionadas con instalaciones hidráulicas redes de acueducto y alcantarillado, infraestructura vial, edificaciones, viviendas unifamiliares, brindado a sus clientes el apoyo en el suministrando de materias primas como: tuberías y accesorios Pvc, tubería y accesorios Cpvc, tubería y accesorios novafort, válvulas hidráulicas, geomembranas, geotextiles, medidores, tanques plásticos y pozos séptico.The continuous improvement applied within its commercial activities is achieved from the knowledge of the structural network of its entire supply chain together with the management of the customer relationship, customer satisfaction, demand management and supply and marketing strategies. of their products, so it is important to propose Supply Chain Management and Logistics as an essential tool within organizations to be able to measure their level of efficiency within their internal activities, allowing them to know the degree of competitiveness in which they are, in addition to knowing the different strategies that our company implements in terms of merchandise distribution, inventories, transportation management and thus identify the shortcomings and possible improvement actions, which is why the company M&R DISTRIBUCIONES Y SERVICIOS SA is chosen which is dedicated in its commercial activity to the direct distribution of materials and accessories for the construction of public and private projects / works in the department of Boyacá, related to hydraulic installations, aqueduct and sewerage networks, road infrastructure, buildings, single-family homes, provided its clients with support in supplying raw materials such as: PVC pipes and fittings, PVC pipes and fittings, Novafort pipes and fittings, hydraulic valves, geomembranes, geotextiles, meters, plastic tanks and septic tanks

Genetic diversity and paternity of Brycon orbignyanus offspring obtained for different reproductive systems

O objetivo do presente estudo foi avaliar a diversidade genética e a paternidade de progênies de Brycon orbignyanus obtidas pelos sistemas reprodutivos por extrusão e seminatural, através do marcador microssatélite. Os quatro loci utilizados produziram 11 alelos, sendo observados três alelos (BoM1, BoM5 e BoM7) e dois alelos (BoM2) por locus presentes nos parentais e na progênie de ambos sistemas reprodutivos. Na progênie do sistema por extrusão foram observados alelos de baixa frequência para os locus BoM5 (alelo B = 0,095) e BoM7 (alelo C = 0,059) e houve uma diminuição da variabilidade genética (Heterozigosidade observada-Ho = 0,900 e 0,823; Índice de Shannon-IS = 0,937 e 0,886; diversidade genética de Nei-DGN = 0,604 e 0,566, respectivamente). Na progênie do sistema seminatural as frequências dos alelos se mantiveram estáveis, sendo verificada uma frequência desigual para cada locus. A variabilidade genética foi preservada, sendo corroborado pelos valores de Ho (0,975 e 0,945), IS (0,927 e 0,924) e DGN (0,593 e 0,581) para parentais e progênie, respectivamente. Observaramse desvios (P<0.01) no equilíbrio de Hardy-Weinberg e desequilíbrio de ligação nos dois sistemas reprodutivos. O coeficiente de endogamia (Fis) mostrou déficit de heterozigotos na progênie do sistema por extrusão. Observou-se paternidade múltipla e contribuição reprodutiva diferenciada na composição das famílias na progênie nos dois sistemas reprodutivos, com a presença de dominância reprodutiva no sistema seminatural.The objective of this study was to estimate the genetic diversity and the paternity of Brycon orbignyanus offspring’s obtained with the extrusion and semi-natural reproductive systems, by microsatellites markers. The four loci used produced 11 alleles, being observed three alleles (BoM1, BoM5 and BoM7) and two alleles (BoM2) for locus present in the parental and in the offspring of both reproductive systems. In the offspring of the extrusion system low frequency alleles was observed for the locus BoM5 (allele B = 0.095) and BoM7 (allele C = 0.059) and there was a decrease of genetic variability (observe heterozygosity-Ho = 0.900 and 0.823; Shannon index-IS = 0.937 and 0.886; Nei genetic diversity-DGN = 0.604 and 0.566, respectively). For the offspring of the semi-natural system the allele frequencies stayed stable being verified an unequal frequency for each locus. The genetic variability in the offspring was preserved, being corroborated by the Ho values (0.975 and 0.945), IS (0.927 and 0.924) and DGN (0.593 and 0.581) for parental and offspring, respectively. Deviations were observed (P <0.01) in the Hardy-Weinberg equilibrium and linkage disequilibrium for the two reproductive systems. The inbreeding coefficient (Fis) it showed deficit of heterozygote in the offspring of the extrusion system. Multiple paternity and differed reproductive contributions in the composition of the families in the offspring in the two reproductive systems was observed, with the presence of reproductive dominance in the semi-natural system

La vid silvestre en México. Actualidades y potencial

En ocho capítulos se aborda el estado del arte de la vid silvestre en MéxicoEl estudio de las especies vegetales nativas de México representa un reto que cada día más investigadores mexicanos asumen. Durante muchos años, el apoyo a la investigación pública ha sido mínimo; desde el punto de vista agronómico es insuficiente para avanzar a la velocidad que requiere nuestro país para afrontar problemas de producción y distribución de alimentos. Por esa razón, entre otras, me es grato presentar esta obra que compila parte de los trabajos de la Red de Vid Silvestre patrocinada por el Sistema Nacional de Recursos Fitogenéticos (sinarefi) dependiente de la sagarpa; trabajos apuntalados por investigadores que sin pertenecer a la red han colaborado en el estudio de las plantas del género Vitis. En este libro se muestra el potencial del país para aprovechar el recurso vid, empleado desde antes de la conquista española por nativos mexicanos que conocían sus bondades. Es necesario continuar el avance en el conocimiento de este recurso, por ello el presente libro pretende invitar a toda persona interesada en contribuir con el rescate y conservación de las vides mexicanas. Los autores y editores, así como las instituciones en donde laboramos y aquellas que patrocinan estas investigaciones, esperamos se cumpla este objetivo y que el lector, alumno, profesor, investigador, público en general, disfrute esta lectura y, sobre todo, se interese en el recurso VitisSEP, SINAREFI, UAEME

Industrial, Collaborative and Mobile Robotics in Latin America: Review of Mechatronic Technologies for Advanced Automation

Mechatronics and Robotics (MaR) have recently gained importance in product development and manufacturing settings and applications. Therefore, the Center for Space Emerging Technologies (C-SET) has managed an international multi-disciplinary study to present, historically, the first Latin American general review of industrial, collaborative, and mobile robotics, with the support of North American and European researchers and institutions. The methodology is developed by considering literature extracted from Scopus, Web of Science, and Aerospace Research Central and adding reports written by companies and government organizations. This describes the state-of-the-art of MaR until the year 2023 in the 3 Sub-Regions: North America, Central America, and South America, having achieved important results related to the academy, industry, government, and entrepreneurship; thus, the statistics shown in this manuscript are unique. Also, this article explores the potential for further work and advantages described by robotic companies such as ABB, KUKA, and Mecademic and the use of the Robot Operating System (ROS) in order to promote research, development, and innovation. In addition, the integration with industry 4.0 and digital manufacturing, architecture and construction, aerospace, smart agriculture, artificial intelligence, and computational social science (human-robot interaction) is analyzed to show the promising features of these growing tech areas, considering the improvements to increase production, manufacturing, and education in the Region. Finally, regarding the information presented, Latin America is considered an important location for investments to increase production and product development, taking into account the further proposal for the creation of the LATAM Consortium for Advanced Robotics and Mechatronics, which could support and work on roboethics and education/R+D+I law and regulations in the Region. Doi: 10.28991/ESJ-2023-07-04-025 Full Text: PD

Antimicrobial resistance among migrants in Europe: a systematic review and meta-analysis

BACKGROUND: Rates of antimicrobial resistance (AMR) are rising globally and there is concern that increased migration is contributing to the burden of antibiotic resistance in Europe. However, the effect of migration on the burden of AMR in Europe has not yet been comprehensively examined. Therefore, we did a systematic review and meta-analysis to identify and synthesise data for AMR carriage or infection in migrants to Europe to examine differences in patterns of AMR across migrant groups and in different settings. METHODS: For this systematic review and meta-analysis, we searched MEDLINE, Embase, PubMed, and Scopus with no language restrictions from Jan 1, 2000, to Jan 18, 2017, for primary data from observational studies reporting antibacterial resistance in common bacterial pathogens among migrants to 21 European Union-15 and European Economic Area countries. To be eligible for inclusion, studies had to report data on carriage or infection with laboratory-confirmed antibiotic-resistant organisms in migrant populations. We extracted data from eligible studies and assessed quality using piloted, standardised forms. We did not examine drug resistance in tuberculosis and excluded articles solely reporting on this parameter. We also excluded articles in which migrant status was determined by ethnicity, country of birth of participants' parents, or was not defined, and articles in which data were not disaggregated by migrant status. Outcomes were carriage of or infection with antibiotic-resistant organisms. We used random-effects models to calculate the pooled prevalence of each outcome. The study protocol is registered with PROSPERO, number CRD42016043681. FINDINGS: We identified 2274 articles, of which 23 observational studies reporting on antibiotic resistance in 2319 migrants were included. The pooled prevalence of any AMR carriage or AMR infection in migrants was 25·4% (95% CI 19·1-31·8; I2 =98%), including meticillin-resistant Staphylococcus aureus (7·8%, 4·8-10·7; I2 =92%) and antibiotic-resistant Gram-negative bacteria (27·2%, 17·6-36·8; I2 =94%). The pooled prevalence of any AMR carriage or infection was higher in refugees and asylum seekers (33·0%, 18·3-47·6; I2 =98%) than in other migrant groups (6·6%, 1·8-11·3; I2 =92%). The pooled prevalence of antibiotic-resistant organisms was slightly higher in high-migrant community settings (33·1%, 11·1-55·1; I2 =96%) than in migrants in hospitals (24·3%, 16·1-32·6; I2 =98%). We did not find evidence of high rates of transmission of AMR from migrant to host populations. INTERPRETATION: Migrants are exposed to conditions favouring the emergence of drug resistance during transit and in host countries in Europe. Increased antibiotic resistance among refugees and asylum seekers and in high-migrant community settings (such as refugee camps and detention facilities) highlights the need for improved living conditions, access to health care, and initiatives to facilitate detection of and appropriate high-quality treatment for antibiotic-resistant infections during transit and in host countries. Protocols for the prevention and control of infection and for antibiotic surveillance need to be integrated in all aspects of health care, which should be accessible for all migrant groups, and should target determinants of AMR before, during, and after migration. FUNDING: UK National Institute for Health Research Imperial Biomedical Research Centre, Imperial College Healthcare Charity, the Wellcome Trust, and UK National Institute for Health Research Health Protection Research Unit in Healthcare-associated Infections and Antimictobial Resistance at Imperial College London

Rate and duration of hospitalisation for acute pulmonary embolism in the real-world clinical practice of different countries : Analysis from the RIETE registry

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