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Classification for Alternative 3-3-1 models with exotic electric charges.
Get PDFWe present the most comprehensive classification of 3-3-1 models with β=√3. Our analysis reveals numerous solutions in which anomaly cancellation is achieved among fermions belonging to distinct families. These findings are of particular interest due to their implication in the generation of heavy neutral vector bosons with non-universal characteristics. The non-universality of Standard Model fermion charges under an additional gauge group leads to phenomena such as Charged Lepton Flavor Violation (CLFV) and Flavor Changing Neutral Currents (FCNC). We delve into the conditions under which these new models can circumvent constraints imposed by such processes. Additionally, we provide an account of constraints imposed by data from the Large Hadron Collider (LHC)
Ativos na terceira idade: Validação e usabilidade de um aplicativo móvel para o Programa Academia da Cidade e Saúde
Get PDFIntrodução: O envelhecimento associado a uma má qualidade de vida contribui para o desenvolvimento de Doenças Crônicas Não Transmissíveis (DCNTs). As DCNTs são uma das principais causas de mortalidade mundial. Objetivo: Validar o conteúdo e a usabilidade do App “Ativos na terceira idade” para profissionais e usuários do Programa Academia da Cidade e Saúde/ Programa Academia da Saúde (PACID/PAS). Materiais e Métodos: Estudo exploratório realizado entre março de 2021 e janeiro de 2022 em quatro polos de academias de uma cidade do interior de Pernambuco. Participaram dez usuários (maiores de 60 anos), dez profissionais e dez juízes. Foram utilizados os instrumentos SUS, SAM e IVC para validação. Resultados: O SAM global foi de 87,04%, considerado material superior. Todos os itens obtiveram IVC ≥ 0,80, com média global de IVC de 0,94. A usabilidade pelos usuários foi de 76,75% e pelos profissionais de 84,5%. Conclusão: O App “Ativos na terceira idade” apresentou parâmetros satisfatórios de usabilidade e validade de conteúdo para uso no PACID/PAS
Model of innovation in agriculture 4.0 processes in the department of Cundinamarca, Colombia
Get PDFInnovation in agriculture plays a fundamental role in the transition of said production towards more sustainable schemes, hence the importance of its study, especially in relation to production processes. The literature shows that although several studies have been carried out that examine the variables that intervene in the innovation processes in the agricultural sector, there is a lack of studies that examine the innovation processes in Colombia. This is why the fundamental objective of this research is to develop a model that explains the main factors that are related to process innovation in the agricultural sector, using concepts derived from organizational innovation process models developed in the literature. The factors identification methodology used a sample of 1,190 Agricultural Production Units (UPA) collected in the National Agricultural Survey, incorporating only producers from the department of Cundinamarca, Colombia. With this sample, and using for the analysis the variables that are developed in the literature, a principal components factorial analysis was carried out, as well as a second-order confirmatory factorial analysis. The factor analysis shows three latent factors, among them “Innovation in Raw Materials”, “Innovation in crops” and “Innovation in management of External Factors”, which, being the most significant for the process innovation process, should be considered as fundamental part of the government's public policies to facilitate its adoption in Colombian agriculture in the future
Governance bodies in the family business: a bibliometric study
Get PDFThe article presents a documentary review about the necessary governance bodies to manage the family business (FB). The main objective was to examine the current state in the literature on this subject. A systematic review of documents was used, combining various bibliometric methods, in order to map the topics related to corporate, family, and FB governance to better understand their development and interaction. In the analyzed articles, it was discovered that the FB consists of three areas, which are family, business, and ownership. These operate efficiently in the first generation when everything revolves around the figure of the founder; however, the growth of these areas brings management challenges, hence the need to establish governance bodies. It was concluded that the creation and operation of these bodies are fundamental to contribute to the management of the FB in all its aspects, thereby breaking free from founder dependence to achieve a professionalized corporate governance
Desarrollo de habilidades de pensamiento computacional, a través de la implementación de estrategias conectadas y desconectadas en niños, niñas y adolescentes de sexto grado en las instituciones educativas Galápagos (rural) de Rionegro (s), y Metropolitano María Occidente
Get PDFEn la sociedad moderna, el aprendizaje de las Tecnologías de la Información y
Comunicación (TIC) va más allá de las habilidades técnicas, abordando la comprensión profunda
del impacto social y ético de las TIC. Se destaca la necesidad de aprender a vivir en el espacio-red
global. Además, se fomenta la invención, alentando a los estudiantes a utilizar creativamente la
tecnología en la resolución de problemas. La investigación se enfoca en una estrategia didáctica
con actividades conectadas y desconectadas y a través de la lúdica, para desarrollar habilidades de
pensamiento computacional, esenciales en un mundo digital. Se reconoce la importancia crítica de
preparar a los estudiantes para la industria 4.0, destacando el papel fundamental del pensamiento
computacional en la formulación y resolución de problemas con herramientas informáticas.
Destaca la necesidad de integrar la ciencia, tecnología y pensamiento computacional en la
educación básica en Colombia, alineándose con objetivos de educación de calidad y equitativa.
El estudio adoptó un paradigma mixto, integrando enfoques cuantitativos y cualitativos
para evaluar el desarrollo de habilidades de pensamiento computacional en estudiantes de sexto
grado de dos instituciones educativas en Colombia. La metodología combinó la recolección de
datos numéricos y verbales, abarcando observaciones etnográficas directas, entrevistas
semiestructuradas con docentes, y encuestas a estudiantes y padres. Las actividades didácticas,
tanto conectadas como desconectadas, fueron diseñadas para promover habilidades de
descomposición, reconocimiento de patrones, diseño algorítmico, generalización de patrones y
abstracción, evaluadas mediante herramientas específicas. La investigación se focalizó en
comprender las experiencias y contextos de los estudiantes, abordando las desigualdades de acceso
a recursos tecnológicos y educativos.
Esta metodología robusta y holística permitió una evaluación integral del impacto del
proyecto, mostrando un incremento significativo en la motivación y compromiso de los
estudiantes, así como en sus competencias digitales. Las técnicas de recolección de información y
el análisis detallado aseguraron la validez de los hallazgos, proporcionando una base sólida para
futuras investigaciones y aplicaciones pedagógicas en contextos similares
Opening doors to life: A suicidal behavior prevention program involving Gatekeeper teachers
Get PDFIntroduction: Suicide is the third cause of death in young people aged between 15 to 19 years. Thus, school environments can promote mental health of adolescents through early identification of risk factors and prevention of suicidal behaviors. One prevention strategy is the training of “gatekeepers”.
Objective: To determine the impact of the “Opening Doors to Life” program on the knowledge, attitudes, and practices regarding prevention of suicidal behavior in a set of high school teachers from an educational institution in San Juan de Pasto, Colombia.
Materials and methods: A pre-experimental study with an intervention group and pre-and post-follow-up measurements. Nine volunteer teachers participated during two training sessions.
Results: Positive changes regarding knowledge, attitudes, and practices of the participants during pretest and posttest were observed for the majority of evaluated sub-dimensions. However, after three years, the positive measures prevailed only for knowledge about suicidal behavior and attitudes toward prevention.
Conclusion: The “Opening Doors to Life” program showed effectiveness and relevance. However, maintaining its impact requires follow-up actions and support of trained teachers
Inclusión financiera y tecnologías de la información y comunicación en las MiPymes en Colombia. Caso micronegocios período 2019-2021
Get PDFLos micronegocios representan más del 90% del tejido empresarial colombiano; sin embargo, la mayoría son informales, no están bancarizados y carecen de tecnologías de información para ser más competitivos; por tal razón, el objetivo de esta investigación es analizar la probabilidad de lograr procesos de inclusión financiera y adopción de Tecnologías de la Información y Comunicación (TIC) en la formalización de los micronegocios en Bogotá durante el periodo 2019-2021. Desde el punto de vista metodológico, se utilizó un esquema mixto, basado en un análisis cualitativo (caracterización y análisis de resultados) y un análisis cuantitativo, a partir de la base de datos de 15,026 micronegocios, tomados de la Encuesta de Micronegocios del Departamento Administrativo Nacional de Estadística (DANE), donde se implementó un modelo Probit para calcular la probabilidad de alcanzar la formalización y bancarización mediante un análisis probabilístico y de efectos marginales. El estudio concluye que la inclusión financiera y la adopción de TIC, son fundamentales para garantizar el crecimiento de los micronegocios, aunque algunos continúen en la informalidad y no puedan acceder a estas herramientas que garanticen su sostenibilidad. Los resultados del modelo Probit demuestran que la formalidad aumenta cuando las empresas se formalizan en la Cámara de Comercio y obtienen el Registro Único Tributario (RUT)