Revistas Eletrônicas - UFTM (Universidade Federal do Triângulo Mineiro)
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Assessing the degradability of biodegradable-packaging base material through the insertion of organic solid waste deriving from composting process
Get PDFThe intensified use of plastic materials in recent decades had different impacts on the environment. This issue has encouraged both research about, and the development of, alternatives to minimize the massive amount of plastic items used by society. The so-called biodegradable materials, mainly starch-based compounds, have emerged from this context. Although these materials show limited mechanical properties and low water resistance, they can be mixed to several reinforcing agents to help overcoming their shortcomings in order to be applied at larger scale without jeopardizing their biodegradability. Thus, the aims of the current study are to assess the biodegradability of a starch-based biopolymer by adding different malt bagasse (waste deriving from beer production processes) concentrations to it; as well as assessing and monitoring parameters linked to the composting process of this mix added with solid organic waste. Biodegradation was determined by visually assessing the investigated material, as well as by monitoring parameters, such as pH, temperature, humidity and organic matter and by recording them in spreadsheet, for descriptive data analysis purposes. Results have evidenced lower biological activity in the compost and, consequently, higher resistance to biodegradation than those observed for the control composting unit. It was hard identifying the material after three-week composting. After four weeks, it was not possible identifying the biopolymer. This finding suggested biopolymer biodegradation and incorporation to the substrate. The investigated material underwent changes in its mechanical properties during composting. Therefore, it is possible saying that it is fully biodegradable by all malt bagasse compositions, under composting conditions.The intensification of the use of plastic materials in recent decades has caused several environmental impacts, becoming direct incentives for research and development of alternatives that minimize the massive amount of plastics used by societies. In this context, so-called biodegradable materials emerge, with emphasis on starch-based compounds, which, although they have limited mechanical properties and low water resistance, allow the mixture with various reinforcing agents, in order to overcome the deficiencies for their application in larger scales without detracting from its focus on biodegradability. In this sense, the present study aimed to evaluate the biodegradability of a starch-based biopolymer, with the addition of different proportions of malt bagasse, this residue from the production process of beer; evaluating and monitoring parameters of the composting process of this mixture with organic solid waste. Biodegradation was determined from the visual assessment of the material, monitoring parameters such as pH, temperature, humidity and organic matter, being recorded in an electronic spreadsheet for descriptive analysis. The results obtained, when compared to the control composting unit, indicate a lower biological activity on the compost, consequently, a greater resistance to biodegradation. After three weeks of composting, it was difficult to identify the material and after four weeks, it was not possible to identify the biopolymer, indicating its biodegradation and incorporation into the substrate. It was observed that the material showed changes in its mechanical properties during composting. It is concluded that the material is totally biodegradable in all malt bagasse compositions, under composting conditions
Implementation of parcels of land micro-reservoirs as a strategy to reduce water volume in galleries and peak flows in the micro-drainage system of a new subdivision
Get PDFUrbanization has caused significant environmental impacts on natural cycles, particularly the hydrological cycle. Soil impermeabilization increases surface runoff, contributing to the higher frequency and intensity of urban flooding. This phenomenon underscores the growing vulnerability of cities to extreme events, which are further exacerbated by climate change. Precipitation patterns have been shifting due to climate alterations, necessitating adaptations to IDF curves, which are critical for planning climate adaptation strategies. In many cases, existing drainage systems are insufficient to handle the impacts of urbanization and intense rainfall events. In this context, the adoption of techniques that control flow distribution over time and mitigate peak flows may be crucial for flood control, especially in urbanized areas. Green infrastructure techniques, such as Low Impact Development (LID) practices, have proven effective in mitigating urban flooding. Among these measures, infiltration techniques such as green roofs and permeable pavements, as well as storage techniques such as retention basins, detention basins and rain barrels (RB), stand out. This study examines the impact of implementing RB in the microdrainage system of a new subdivision in the interior of Paraná. The simulations were conducted for return time of 1, 5, and 10 years, indicating potential failures in the drainage system. To prevent flooding, the strategic inclusion of RB was proposed to mitigate peak flows in the drainage galleries, preventing overflow and system overload, and reducing peak flow by up to 47%
Environmental remediation of canga and iron mining waste pile using bee pasture of Baccharis dracunculifolia
Get PDFMining is an economic activity known for its significant potential to generate socio-environmental impacts. In the case of iron ore mining in the Iron Quadrangle of Minas Gerais, the areas most frequently affected are typically ferruginous fields, due to vegetation suppression for pit opening and the deposition of waste rocks. Owing to their unique characteristics, these regions exhibit a high degree of endemism, with species adapted to the specific environmental conditions, making them suitable candidates for use in ecological restoration projects. Baccharis dracunculifolia is a native plant with significant potential for inclusion in such projects due to its ability to colonize degraded areas and its interactions with pollinators, such as the honeybee Apis mellifera. Consequently, environmental restoration efforts can be integrated with apicultural production, providing a sustainable alternative for the productive use of previously degraded land. The objective of this research is to identify and compare the physical and chemical properties of soils from iron mining waste piles and canga for potential use in environmental restoration with B. dracunculifolia as a bee pasture. Analyses included particle size distribution, bulk density, moisture content, pH, and chemical composition using X-ray fluorescence (XRF). Results indicated that both environments demonstrated similar properties across all tests, supporting the use of native plants such as B. dracunculifolia in ecological restoration projects. Furthermore, the establishment of bee pastures composed of this species in degraded areas can help diversify the income streams of local communities near mining operations, thereby reducing their dependency on mining activities
SUDS: Environmental remediation applied to urban drainage
Get PDFThe few strategies used to remediate polluted urban waters have focused on reducing gross pollutant loads with a view to improving the aesthetics of streams and receiving rivers. However, many researchers have sought to evaluate the efficiency of percolating beds, operating by gravity, in removing contaminants from urban rainwater, valuing the short time for treatment and low maintenance. The various percolating beds tested proved to be effective in removing pollutants found in collected urban runoff, particularly metals. Notably, the composition of the prototypes included vermiculite, a clay mineral that demonstrated superior results compared to those made solely from sand, justifying its adoption. In this way, new devices based in this principle, could contribute to the implementation of water requalification actions in small, highly urbanized river watersheds dominated by diffuse contamination sources, with the implementation of treatment systems at the end of the drainage networks
Environmental Research focused on Environmental Strategies
Get PDFThis special issue of the Revista Brasileira de Ciência, Tecnologia e Inovação (RBCTI) brings thirteen unpublished papers, which deal with different approaches related to environmental studies, carried out in many states of Brazil. These are studies developed by professors and post-graduate students of different institutions
A formação de professores e o Desenho Universal para a Aprendizagem:: Um mapeamento sistemático da literatura.
Get PDF(UDL) is related to the field of teacher training, highlighting the training of teachers of Specialized Educational Assistance (AEE), in Special Education. The systematic mapping (2017) was carried out in the Brazilian Digital Library of Theses and Dissertations (BDTD) and in the Education Resources Information Center (ERIC). It appears that the topic has been addressed for more than two decades in the field of teacher training, both in Special Education for monitoring students with disabilities, and in areas of knowledge such as Science, Mathematics, language teaching and on topics such as inclusion, social vulnerability and learning difficulties. In Brazil, studies focus on strategies that involve collaborative teaching, with an emphasis on flexibility and curricular accessibility involving the training of teachers from various areas of knowledge, both in initial training and in continuing teacher training. At the international level, research covers various dimensions of teacher training and presents themes that are close to the training of Special Education teachers, also involving different areas of knowledge and contexts ranging from Basic Education to University Education. Is argued that the UDL, although it has its origins in neuroscience focused on assistive technology, presents itself as a powerful training path, suggesting new studies on the subject in the field of teacher training, not only in Special Education as in several areas of knowledge, including initial and continuing teacher training.
Keywords: Teacher education; Universal Design for Learning; Specialized Educational Services;Este estudo visa apresentar, a partir de um mapeamento sistemático da literatura científica , como o Desenho Universal para a Aprendizagem (DUA) está relacionado ao campo de formação de professores, dando destaque à formação dos professores do Atendimento Educacional Especializado (AEE) na Educação Especial. O mapeamento sistemático (FALBO et al., 2017) foi realizado nas bases Biblioteca Digital Brasileira de Teses e Dissertações (BDTD), Periódicos CAPES e na Education Resources Information Centre (ERIC). Verifica-se que o tema tem sido abordado há mais de duas décadas, relacionado inicialmente à Educação Especial, para o acompanhamento de estudantes com deficiências, surgindo na áreas do conhecimento como Ciências, Matemática, ensino de línguas e relacionado a temáticas como inclusão, vulnerabilidade social e dificuldades de aprendizagem. No Brasil, os estudos focalizam estratégias que envolvem o ensino colaborativo, com ênfase na flexibilização e na acessibilidade curricular envolvendo a formação de professores, inicial e continuada, de variadas áreas do conhecimento. No âmbito internacional, as pesquisas abrangem variadas dimensões da formação docente e apresentam temáticas que se aproximam da formação de professores da Educação Especial, envolvendo também diversas áreas do conhecimento e contextos que vão da Educação Básica ao Ensino Superior. Discute-se que o DUA, embora tenha suas origens na neurociências voltada para a tecnologia assistiva, se apresenta como uma potente proposta formativa, sugerindo novos estudos a respeito da temática no contexto geral da formação de professores.
Palavras-chave: Formação de professores; Desenho Universal para a Aprendizagem; Atendimento Educacional Especializado
O ensino de ciências e a educação étnico-racial: uma revisão sistemática da literatura
Get PDFNeste trabalho, foi realizada uma Revisão Sistemática da Literatura (RSL) a respeito das produções científicas desenvolvidas entre 2011 a 2023 acerca da interface entre o Ensino de Ciências e a Educação Étnico-Racial no escopo da Educação Básica. Essa revisão se deu por compreender que o Ensino de Ciências deve promover uma formação crítica e emancipatória do sujeito, sendo assim papel do ensino de Ciências o combate ao racismo estruturado no âmbito escolar e social. Para a RSL, foi utilizada como fonte de dados a Plataforma de Pesquisa “Portal de Periódicos CAPES”, um dos maiores acervos científicos virtuais do Brasil. A pesquisa revelou uma defasagem de materiais com relação à associação das duas temáticas estudadas, uma vez que poucos resultados foram encontrados no que se refere à produção de estudos dos dois assuntos em evidência, demonstrando assim, um ponto crítico da investigação. Isso deixa claro a necessidade de se realizar mais trabalhos e investigações que contribuam para essa temática tão necessária de ser trabalhada na sala de aula, pois a escassez de estudos foi uma limitação encontrada no decorrer desta pesquisa
Entre a identidade e a transformação socioeducativa: o teatro e a extensão com o projeto Arteatro no bairro Coroadinho em São Luís (MA)
Get PDFThe present article has as objective to answer the question: Why are the theatrical practices in Coroadinho scarce? And how can we contribute to change this scarcity? Therefore, it seeks to circumscribe the performance of the community theater-educator. To this end, the article is focused on the ARTEATRO Community Theater Group, which is developed in the community of Coroadinho in São Luís/MA, in which we have been active since 2019. The research refers to the actions that were proposed to the group, in the Community Council of Social Defense of the Coroadinho Pole. To this end the research is based on my experience and reflection as a community-educator-theater (whose conceptual approach was elaborated and defended in the body of the text), a reflection that thinks about the evolution of young people and adolescents, and notes that the theater fulfills a role of transformation of realities in the lives of participants, and as theoretical references, this article uses the knowledgeof Augusto Boal, Claudia Andrade, Domingo Adame and others. Furthermore, it is a qualitative research of a narrative reflective nature. With this article, it is concluded that the community-educator-theater is a mediator of the artistic and personal development of the members, and the theatrical art has a fundamental role in the social transformation of young people and adolescents.Este artículo pretende responder a la pregunta: ¿Por qué son escasas las prácticas teatrales en Coroadinho? ¿Y cómo podemos contribuir a cambiar esta escasez? Para ello, trata de circunscribir el trabajo del educador teatral comunitario. Para ello, el artículo se centró en el Grupo de Teatro Comunitario ARTEATRO, que actúa en la comunidad de Coroadinho, en São Luís/MA, desde 2019. La investigación se refiere a las acciones propuestas al grupo por el Consejo Comunitario de Defensa Social de Coroadinho. Para ello, la investigación se basa en mi experiencia y reflexión como teatro-educadora comunitaria (cuyo enfoque conceptual fue elaborado y defendido en el cuerpo del texto), reflexión que piensa en la evolución de los jóvenes y adolescentes, y se observa que el teatro desempeña un papel transformador de realidades en la vida de los participantes y como referencia teórica, utiliza los conocimientos de Augusto Boal, Claudia Andrade, Domingo Adame y otros. Además, se trata de una investigación cualitativa de carácter narrativo reflexivo. El artículo concluye que los teatro-educadores comunitarios median en el desarrollo artístico y personal de los integrantes y que el arte teatral desempeña un papel fundamental en la transformación social de los jóvenes y adolescentes.
Traducción realizada con la versión gratuita del traductor DeepL.comO presente artigo tem por objetivo responder a questão: Por que as práticas teatrais no Coroadinho são escassas? E como podemos contribuir para mudar essa escassez? Portanto, busca-se circunscrever a atuação do teatro-educador-comunitário. Para tal fim, o artigo centrou-se no Grupo de Teatro Comunitário ARTEATRO, que é desenvolvido na comunidade do Coroadinho, em São Luís/MA, no qual está em atividade desde 2019. A pesquisa remete-se às ações que foram propostas ao grupo, no Conselho Comunitário de Defesa Social do Polo Coroadinho. Para esse fim, a pesquisa baseia-se em minha experiência e reflexão como teatro-educador-comunitário (cuja abordagem conceitual foi elaborada e defendida no corpo do texto), reflexão essa que pensa a evolução dos jovens e adolescentes, e nota-se que o teatro cumpre um papel de transformação de realidades na vida dos participantes e como referenciação teórica, utiliza-se do conhecimento do Augusto Boal, Claudia Andrade, Domingo Adame e outros. Para mais, é uma investigação qualitativa de natureza narrativa reflexiva. Com esse artigo, conclui-se que o teatro-educador-comunitário é um mediador do desenvolvimento artístico e pessoal dos integrantes, e a arte teatral tem um papel fundamental na transformação social de jovens e adolescentes
Estudo com egressos do programa de educação tutorial nutrição da Universidade Federal de Ouro Preto - MG: Influência na formação acadêmica e atuação profissional
Get PDFO PET do curso de Nutrição da UFOP, desde 1992 vem realizando atividades que contemplam os três pilares das IES e do Programa: ensino, pesquisa e extensão. A pesquisa desenvolvida ao longo de três anos (desde 2019), buscou compreender a influência que o Programa exerceu na formação acadêmica e atuação profissional dos petianos egressos, no período de 1992 a 2019, segundo a percepção deles próprios. Os dados coletados demonstraram que o programa exerceu influência positiva na vida dos egressos tanto no âmbito pessoal quanto profissional, atingindo, portanto, seus objetivos acadêmicos
Unipet cultural e a experiência do grupo PET pedagogia da Universidade Estadual de Maringá
Get PDFO presente texto objetiva apresentar a União dos Grupos do Programa de Educação Tutorial (UNIPET) da Universidade Estadual de Maringá (UEM) sobre a perspectiva do PET Pedagogia, a fim de relatar as experiências de ações planejadas e desenvolvidas anualmente pelos grupos e, por conseguinte, discutir possibilidades de intervenções extensionistas. Daremos destaque e especificidade às experiências vivenciadas no “PET na Praça”, uma das atividades planejadas/executadas pelo UNIPET. Esse trabalho justifica-se pela relevância em divulgar as experiências positivas que visam a consolidação da indissociabilidade do ensino, pesquisa e extensão no âmbito das ações desenvolvidas pelo Programa de Educação Tutorial, além de evidenciar o fortalecimento dos vínculos entre os grupos PET e a comunidade externa, a partir da transdisciplinaridade presente nas ações conjuntas dos grupos. o questionamento evidenciado neste trabalho é: Como as atividades do UNIPET desenvolvem as ações extensionistas e quais as contribuições desse projeto para o Programa de Educação Tutorial