The increasing complexity of configuring cellular networks suggests that machine learning (ML) can effectively improve 5G technologies. Deep learning has proven successful in ML tasks such as speech processing and computational vision, with a performance that scales with the amount of available data. The lack of large datasets inhibits the flourish of deep learning applications in wireless communications. This paper presents a methodology that combines a vehicle traffic simulator with a raytracing simulator, to generate channel realizations representing 5G scenarios with mobility of both transceivers and objects. The paper then describes a specific dataset for investigating beamselection techniques on vehicle-to-infrastructure using millimeter waves. Experiments using deep learning in classification, regression and reinforcement learning problems illustrate the use of datasets generated with the proposed methodology.

Resumo: O objetivo desta investigação foi analisar a carreira de professores de Educação Física, considerando os ciclos da trajetória profissional docente. Participaram do estudo descritivo-exploratório bietápico 64 professores de Educação Física atuantes em escolas municipais de Porto Alegre/RS. No primeiro momento foram aplicados questionários (n=64) e no segundo momento realizadas entrevistas semiestruturadas (n=13). Os resultados possibilitaram a identificação de cinco ciclos que caracterizam a carreira docente dos professores de Educação Física, nomeadamente a Entrada na Carreira, Consolidação das Competências Profissionais na Carreira, Afirmação e Diversificação na Carreira, Renovação na Carreira e Maturidade na Carreira. A continuação dos estudos é sugerida para acompanhar docentes após o processo de aposentadoria, bem como ampliar a caracterização dos diferentes ciclos da carreira de professores de Educação Física.Abstract: This investigation looked into the career of the Physical Education teachers, considering the cycles of their professional trajectories. Sixty-two Physical Education teachers working in municipal schools in Porto Alegre, RS, participated in the descriptiveexploratory two-stage study. First, questionnaires were applied (n= 64) and then semistructured interviews (n= 13) were conducted. Besides, it was possible to identify the cycles that characterize the educational career of Physical Education teachers, which are: entrance; consolidation of professional competences; affirmation and diversification; renewal; and maturity. More studies are suggested for following teachers after they retire as well as to broaden the characterization of the different career cycles of Physical Education teachers.Resumen: El objetivo de esta investigación fue analizar la carrera de profesores de Educación Física, considerando los ciclos de su trayectoria profesional docente. Participaron del estudio descriptivo exploratorio bietápico 64 profesores de Educación Física que actúan en escuelas municipales de Porto Alegre, Rio Grande do Sul. En el primer momento se aplicaron cuestionarios (n=64) y en el segundo momento se realizaron entrevistas semiestructuradas (n=13). Los resultados posibilitaron la identificación de cinco ciclos que caracterizan la carrera docente de los profesores de Educación Física, que son: Entrada en la Carrera, Consolidación de las Competencias Profesionales en la Carrera, Consolidación y Diversificación en la Carrera, Renovación en la Carrera y Madurez en la Carrera. La continuación de los estudios se sugiere para acompañar a los docentes después del proceso de jubilación, así como ampliar la caracterización de los diferentes ciclos de la carrera de los profesores de Educación Física. Palavras chave:Mobilidade profissional. Educação Física e treinamento. Socialização.

O propósito central deste estudo foi identificar as fontes de conhecimento percecionadas por treinadores de elite da 1ª divisão portuguesa de andebol. Realizaram-se 10 entrevistas semiestruturadas que foram submetidas a análise de conteúdo. Os dados revelaram que as fontes de conhecimento diretas assumem uma posição de destaque na construção e reconstrução do conhecimento do treinador, nomeadamente a interação com treinadores, a influência de mentores e a experiência como treinador.

No abstract

Since becoming a teacher is a highly emotional path, it is fundamental to understand teachers’ emotional journeys while constructing their teacher professional identity. An ethnographic approach was employed to examine how the emotions experienced by physical education preservice teachers during formalised school placement contributed to the construction of their teacher professional identity. Data were collected throughout a ten-month school placement (i.e. an academic school year) and included researcher observations, researcher field notes, and semi-structured interviews with preservice teachers and their cooperating teacher. A thematic analysis was used in a process of constant comparison. Emotions were labelled using Zembylas’ three main categories: ideology; school culture; and power relations. A fourth category labelled physical education culture was created through an inductive thematic analysis to capture emotions deemed to align specifically to the teaching of physical education. With respect to ideology, preservice teachers alluded to positive emotions such as care for students, a sense of accomplishment and happiness. Challenging emotions included insecurity/anxiety, disappointment and anger/frustration. Related to school culture, while preservice teachers expressed a sense of belonging they also reported feeling powerless with respect to particular rules enforced by the school. Related to power relations, while preservice teachers were thankful for having a school structure guiding them they, at times, regretted the limited opportunity that such structure allowed them in cultivating agency. Becoming a physical education teacher triggered specific emotions such as practising safety within the gymnasium and a rise in confidence when recognised as a physical education teacher by other physical education teachers.