Application of Fractional Calculus in the Dynamical Analysis and Control of Mechanical Manipulators

Mathematics Subject Classification: 26A33, 93C83, 93C85, 68T40Fractional Calculus (FC) goes back to the beginning of the theory of differential calculus. Nevertheless, the application of FC just emerged in the last two decades. In the field of dynamical systems theory some work has been carried out but the proposed models and algorithms are still in a preliminary stage of establishment. This article illustrates several applications of fractional calculus in robot manipulator path planning and control

Quality of High-protein Diet Bar Plus Chia (Salvia hispanica L.) Grain Evaluated Sensorially by Untrained Tasters

The objective of this study was to develop, analyze composition and evaluate the microbiological and sensory characteristics of high-protein diet bars (PB) with the addition of chia grain (Salvia hispanica L.), partially replacing isolated soy protein and concentrated whey protein, in proportions of 0, 10, 15 and 20%. The proximate composition was analyzed of PB, for microbiological quality of Bacillus cereus, Filamentous fungi and yeast count, total fecal coliforms, and Salmonella ssp. search. Sensory analysis was performed utilizing acceptance testing of characteristics on a nine-point hedonic scale for various attributes, including purchasing intention of the tested PB. Bars showed 20% moisture, 2.3% ash, 20-23% protein and 19% lipids. The effect of increasing of chia was to increase crude fiber content and decrease total carbohydrate and total energy value. All samples were within the microbiological food standards established by current legislation. All PB formulations obtained a good overall impression index and all characteristics were above mean grades, with the exception of taste (63%) in the PB containing 0% chia. Chia grain has a positive influence on sensory aspects and appears to be an alternative way to increase the nutritional quality of high-protein diet bars

Violence in intimacy relationships in young people : research-action in the initial training of nurses

Undergraduate training in Nursing requires an analysis of teachinglearning strategies and processes in the relationship between theory and practice in clinical teaching. Violence in young people’s intimate relationships is a sensitive issue for Nursing care, and peer education can produce moments of cooperative training among students. Action research and project methodology promote intervention in Community Nursing for vulnerable groups and the acquisition of skills in Nursing students. To reflect on the teaching-learning process in Nursing training in Clinical Teaching to Vulnerable Groups, in the last three years, in a community context and using the project methodology, where attitudes related to violence in the intimate relationships of young people are measured in a certain population, and hence, targeting the decision-making process in an action research context, a typology of interventions and outcomes in peer education interventions is described. A reflection on action research, project methodology and peer education in the training of Nursing students was elaborated. The analysis of the data obtained in the different editions of clinical teaching was carried out and the clinical teaching reports were analyzed to extract the interventions carried out in the face of the phenomenon under study. There is a legitimation of violence in the intimate relationships of young people that justifies a structured and continuous intervention in the target population. Intervention strategies were diversified and adapted to the young population, making peer education tangible in the training of young people in the specific protection of violence in intimate relationships. Teaching-learning has to bring theory and practice closer. Research and intervention in Community Nursing can be supported by the use of research action strategies, peer education and by integrating intervention projects focusing on the worrying legitimation of violence in the intimate relationships of young people.info:eu-repo/semantics/publishedVersio

Crenças de alunos e de um professor sobre o uso do Chatclass

Faced with the pandemic scenario that influenced the school environment by implementing remote teaching, the use of digital technologies was intensified in teaching and learning. The present text aims to analyze students’ and a teacher’s beliefs about the use of digital technologies in English language teaching, focusing on Chatclass in the teaching-learning process through participation in the English Language Olympiad. The research participants are 111 students and their teacher. With a qualitative approach, we carried out a survey using google forms for the English language teacher and her students, in order to verify if the platform favored the learning of the English language. The data show that both the teacher and the students evaluate the platform as meaningful, enabling learning, facilitating teaching and motivating participation through gamification and assigned activities.Diante do cenário pandêmico que impactou o ambiente escolar ao implantar o ensino remoto, o uso das tecnologias digitais foi intensificado no ensino-aprendizagem. O presente texto objetiva analisar as crenças de alunos e de um professor sobre a utilização das tecnologias digitais no ensino de língua inglesa, com foco no Chatclass no processo ensino-aprendizagem através da participação na Olimpíada de Língua Inglesa. Os participantes da pesquisa são 111 alunos e sua professora. Com uma abordagem qualitativa, realizamos uma pesquisa utilizando o google forms para a professora de língua inglesa e seus alunos, com o intuito de verificarmos se a plataforma favoreceu o aprendizado da Língua inglesa. Os dados mostram que tanto a professora quanto os alunos avaliam a plataforma como significativa, possibilitando a aprendizagem, facilitando o ensino e motivando a participação através da gamificação e de atividades atribuídas

Enhanced Perspective Generation by Consensus of NeX neural models

Neural rendering is a relatively new field of research that aims to produce high quality perspectives of a 3D scene from a reduced set of sample images. This is done with the help of deep artificial neural networks that model the geometry and color characteristics of the scene. The NeX model relies on neural basis expansion to yield accurate results with a lower computational load than the previous NeRF model. In this work, a procedure is proposed to further enhance the quality of the perspectives generated by NeX. Our proposal is based on the combination of the outputs of several NeX models by a consensus mechanism. The approach is compared to the original NeX for a wide range of scenes. It is found that our method significantly outperforms the original procedure, both in quantitative and qualitative terms.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Retorno de embalagens PET: cenários a partir da responsabilização de fabricantes e distribuidores

The disposal of PET packaging in landfills, combined with reduced rates of reuse and recycling of the material result in governamental movements in search of more suitable solutions to the environment. The responsibility of manufacturers for packaging of their products is a trend that consolidates every day. In the beverage industry, the reverse logistics of packaging can become reality in the coming years. Laws are being dealt to blame the manufacturers for collecting the packaging, as occurs in the crop protection industry. Concerning the presented context, this study aims to understand what would be the impact of a government decision of this nature, as well as factors, constraints and bottlenecks to effective implementation of policies of reverse logistics of PET. Thus, the working method used initiated by a literature search, which served as the basis for assessments of future context, following the technique of scenario planning. Among the main findings, it was found that many companies will have immense trouble following this market from this new law.O descarte de embalagens PET em aterros sanitários, aliado a reduzidas taxas de reuso e reciclagem do material resultam em movimentos governamentais na busca por soluções mais adequadas ao meio ambiente.  A responsabilização dos fabricantes pelas embalagens de seus produtos é uma tendência que se consolida a cada dia. Na indústria de bebidas, a logística reversa das embalagens pode se tornar realidade nos próximos anos. Projetos de lei tramitam para responsabilizar os fabricantes pelo recolhimento das embalagens, assim como ocorre na indústria de defensivos agrícolas. Frente ao contexto apresentado, este estudo tem por objetivo entender quais seriam os impactos de uma decisão governamental desta natureza, assim como os fatores, restrições e gargalos para a aplicação efetiva das políticas de logística reversa das embalagens PET.  Para tanto, o método de trabalho utilizado iniciou por uma pesquisa bibliográfica, a qual serviu de base para avaliações do contexto futuro, seguindo a técnica de planejamento por cenários. Dentre as principais conclusões, foi possível constatar que muitas empresas terão imensa dificuldade para seguir nesse mercado a partir dessa nova lei

LOGÍSTICA REVERSA DAS EMBALAGENS DE AGROTÓXICOS NO MUNICÍPIO DE FRUTAL/MG NO CONTEXTO NACIONAL

A atividade agrícola gera subprodutos diversos, dentre os quais destacam-se as embalagens de agrotóxicos, que se caracterizam por serem elementos perigosos no que se refere à poluição/contaminação ambiental. Para esse tipo de resíduo a Lei nº 7.802/1989 (Lei dos agrotóxicos) e a Lei nº 12.305/2010 (Política Nacional de Resíduos Sólidos), determinam que seja realizada a logística reversa, de modo que estes retornem em segurança para o fabricante. Neste sentido, esta pesquisa tem por objetivos: Diagnosticar a situação atual da logística reversa das embalagens de agrotóxicos e analisar os dados do comércio de agrotóxicos e do recolhimento de embalagens pelo estudo de caso da Cidade de Frutal/MG durante os anos de 2019 e 2020. Para tal, foi realizado um estudo in loco no Associação de Revendedores Agrícolas de Frutal (ARAFRUTAL), bem como foram obtidos dados do Sistema de Controle do Comércio de Agrotóxicos (SICCA) do Instituto Mineiro de Agropecuária (IMA), realizando o mapeamento e tratamento de dados para analisar o comportamento mensal e anual do posto de coleta de embalagens vazias de agrotóxicos vinculado ao sistema nacional de coleta de embalagens do Instituto Nacional de Processamento de Embalagens Vazias (inpEV). Verificou-se que as embalagens de 1 kg, 5 kg, 1 l, 5 l, 10 l e 20 l são as embalagens mais vendidas. Em 2020, no Munícipio de Frutal foram comercializadas 635.000 unidades de agrotóxicos, sendo, 231.607 l e 651.580 kg de produtos, que representa respectivamente 58,46% e 37,17% a mais que o demandado no ano de 2019. A logística reversa realizada das embalagens foi de plásticos e papéis. Dos plásticos: 34.990 kg em 2019 e 35.615 kg em 2020. No ano de 2020, o posto de coleta recebeu 20,51% menos material que o ano de 2019, observando desse modo que a devolução das embalagens, apresentou baixos índices. Logo, observou-se que o consumo dos produtos aumentou, mas, a devolução das embalagens reduziu. Neste viés, faz-se necessário a conscientização da importância dessa prática junto aos agricultores, incentivando as devoluções das embalagens