1,109 research outputs found

    Degradação e vulnerabilidade ambiental: um estudo sobre o ribeirão pira no povoado passarinho

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    With the growth of urbanization, vegetation and springs have been destroyed throughout Brazil, and with this, rational and irrational beings are being harmed, since vegetation as well as water resources is the most important part of the balance of life in the Earth. The objective of this work is to understand the causes that led to the destruction of the gallery forests of the Pira stream, in Passarinho, Tocantinópolis - OT municipality. This research, besides dealing with the deforestation of gallery forests in the Pira stream, also shows the importance of preserving the environment. Also the textual discussion here, seeks to encourage people to align themselves with education and environmental awareness to act consistently in the defense of the environment. The research shows that it is of utmost importance to take care of the gallery forests of the streams and not to destroy them, and when necessary, to restore the forests that were once devastated. This analysis was elaborated from a field research, where we adopted as method of a qualitative research based on the experiences of the elders of the community.Com o crescimento das urbanizações, a vegetação e os mananciais vem sendo destruídos em todo o Brasil, e com isso, os seres racionais e irracionais vêm sendo prejudicado, pois a vegetação bem como ao recurso hídrico é a parte mais importante do equilíbrio da vida na terra. O objetivo desse trabalho é compreender as causas que levaram a destruição das matas de galerias do ribeirão Pira, no povoado Passarinho, município de Tocantinópolis -TO. Esta pesquisa além de tratar sobre o desmatamento das matas de galeria do ribeirão Pira, mostra também a importância de preservar o meio ambiente. Também a discussão textual aqui, busca estimular as pessoas a alinhar-se a educação e a consciência ambiental para atuar de forma consistente na defesa do meio ambiente. A pesquisa mostra que é de suma importância cuidar das matas de galeria dos ribeirões e não destruí-las, e quando houver necessidade, fazer a reposição das matas que um dia foi devastada. Esta análise foi elaborada a partir de uma pesquisa de campo, onde adotamos como método de uma pesquisa qualitativa com base nas experiências dos mais velhos da comunidade

    Reflorestamento ciliar do Ribeirão Pira no Povoado Passarinho Município de Tocantinópolis: um estudo da prática transdisciplinar no processo de ensino-aprendizagem dos alunos do 4° ano „d‟ da Escola Municipal Alto da Boa Vista

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    This intervention project has as main objective to apply the practice of reforestation with the students of the Municipal School Alto da Boa Vista II, to then contribute to the recovery of the degraded areas of the Pira Stream, which is located on TO-210 in the town birdie , in the municipality de Tocantinópolis -TO. The methodology used is that of exploratory and qualitative research initiated with a bibliographic survey. The data collected in the elaboration of the referred project inform us of the importance of the process of sustainable learning of the environment, as a way to foster in the collective student and teacher, actions that concretize the doing and acting on the environment respecting the nature, in order to find objectives proposed to work on transdisciplinary practice in favor of the environment in the school context. It seeks to provide readers with a contextualization from which perspective the research was designed and executed. And so, making it possible to show in this project how important reforestation is for education and for the community. With this work it will be possible to develop theory and practice from the perspective of creative praxis with students within the school context, thus seeking to form engaged subjects who adopt environmental education in their daily lives, that is, in their home or community so that this knowledge does not remain at school only.O presente projeto de intervenção tem como principal objetivo aplicar a prática do reflorestamento com os alunos da Escola Municipal Alto da Boa Vista II, para então contribuir na recuperação das áreas degradadas do Córrego Pira que está situado na TO- 210 no povoado Passarinho, no município de Tocantinópolis -TO. A metodologia utilizada é a de pesquisa exploratória e qualitativa iniciado com um levantamento bibliográfico. Os dados levantados na elaboração do referido projeto nos informam a importância do processo de aprendizagem sustentável do meio ambiente, como forma de fomentar no coletivo discente e docente, ações que concretizem o fazer e o agir sobre o meio ambiente respeitando à natureza, a fim de encontrar objetivos propostos para se trabalhar a prática transdisciplinar em prol do meio ambiente no contexto escolar. Busca-se possibilitar aos leitores uma contextualização de sob qual ótica a pesquisa foi delineada e executada. E assim, possibilitando mostrar neste projeto o quão é importante o reflorestamento para a educação e para a comunidade. Com este trabalho será possível desenvolver a teoria e prática na perspectiva da práxis criadora com os alunos dentro do contexto escolar, buscando assim formar sujeitos engajados que adotem a educação ambiental em seu cotidiano, ou seja, em sua casa ou comunidade para que este conhecimento não permaneça apenas no âmbito escolar

    Chemical composition and biological activities of the essential oil from Anredera cordifolia grown in Brazil.

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    The chemical composition of the essential oil of Anredera cordifolia (Ten.) Steenis (Basellaceae), grown in Brazil, was studied by means of GC and GC-MS analysis. In all, 19 compounds were identified, accounting for 91.6% of the total oil; hydrocarbons were the main constituents (67.7%). The essential oil was evaluated for its in vitro potential phytotoxic activity against germination and initial radicle growth of Raphanus sativus L., Sinapis arvensis L., and Phalaris canariensis L. seeds. At 1.25 ÎĽg/mL and 0.625 ÎĽg/mL, the oil significantly promoted the germination of S. arvensis. Moreover, the antimicrobial activity of the essential oil was assayed against ten bacterial strains. The essential oil showed a weak inhibitory activity against the Gram-positive pathogens

    Social policies and violence: a proposal from RibeirĂŁo Preto-SP, Brazil

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    Pesquisa bibliográfica e análise de documentos oficiais sobre o tema, com o objetivo de apresentar um grande desafio compensador que avançou em uma nova diretriz de gestão municipal, implantando a Rede de Atenção à Criança e ao Adolescente-RAICA. Esta rede visa a articulação para a integração dos diversos serviços existentes e seus profissionais, para promover intervenção nos problemas que crianças e adolescentes vêm sofrendo com o crescimento da violência em diversas áreas.This bibliographical research and analysis of official documents on social policies and violence aims to present a great and rewarding challenge that is oriented by a new municipal administration guideline, implementing a Network for Children's and Adolescent's Care-RAICA. This Network is aimed at articulation with a view to the integration of different services and their professionals in order to intervene in the problems children and adolescents are facing due to increased violence in several areas.La finalidad de esta investigación bibliográfica y análisis de documentos oficiales sobre el tema fue presentar un gran desafío compensador que avanzó en una nueva directriz de la gestión municipal, implantando la Red de Atención al Niño y al Adolescente-RAICA. El objeto de esta Red es la articulación para la integración de los diversos servicios que existen y de sus profesionales, buscando interceder en los problemas que los niños y adolescentes han sufrido con el crecimiento de la violencia en diversas áreas

    BioClimate: a Science Gateway for Climate Change and Biodiversity research in the EUBrazilCloudConnect project

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    [EN] Climate and biodiversity systems are closely linked across a wide range of scales. To better understand the mutual interaction between climate change and biodiversity there is a strong need for multidisciplinary skills, scientific tools, and access to a large variety of heterogeneous, often distributed, data sources. Related to that, the EUBrazilCloudConnect project provides a user-oriented research environment built on top of a federated cloud infrastructure across Europe and Brazil, to serve key needs in different scientific domains, which is validated through a set of use cases. Among them, the most data-centric one is focused on climate change and biodiversity research. As part of this use case, the BioClimate Science Gateway has been implemented to provide end-users transparent access to (i) a highly integrated user-friendly environment, (ii) a large variety of data sources, and (iii) different analytics & visualization tools to serve a large spectrum of users needs and requirements. This paper presents a complete overview of BioClimate and the related scientific environment, in particular its Science Gateway, delivered to the end-user community at the end of the project.This work was supported by the EU FP7 EUBrazilCloudConnect Project (Grant Agreement 614048), and CNPq/Brazil (Grant Agreement no 490115/2013-6).Fiore, S.; Elia, D.; Blanquer Espert, I.; Brasileiro, FV.; Nuzzo, A.; Nassisi, P.; Rufino, LAA.... (2019). BioClimate: a Science Gateway for Climate Change and Biodiversity research in the EUBrazilCloudConnect project. Future Generation Computer Systems. 94:895-909. https://doi.org/10.1016/j.future.2017.11.034S8959099

    Electromagnetic Biostimulation of Living Cultures for Biotechnology, Biofuel and Bioenergy Applications

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    The surge of interest in bioenergy has been marked with increasing efforts in research and development to identify new sources of biomass and to incorporate cutting-edge biotechnology to improve efficiency and increase yields. It is evident that various microorganisms will play an integral role in the development of this newly emerging industry, such as yeast for ethanol and Escherichia coli for fine chemical fermentation. However, it appears that microalgae have become the most promising prospect for biomass production due to their ability to grow fast, produce large quantities of lipids, carbohydrates and proteins, thrive in poor quality waters, sequester and recycle carbon dioxide from industrial flue gases and remove pollutants from industrial, agricultural and municipal wastewaters. In an attempt to better understand and manipulate microorganisms for optimum production capacity, many researchers have investigated alternative methods for stimulating their growth and metabolic behavior. One such novel approach is the use of electromagnetic fields for the stimulation of growth and metabolic cascades and controlling biochemical pathways. An effort has been made in this review to consolidate the information on the current status of biostimulation research to enhance microbial growth and metabolism using electromagnetic fields. It summarizes information on the biostimulatory effects on growth and other biological processes to obtain insight regarding factors and dosages that lead to the stimulation and also what kind of processes have been reportedly affected. Diverse mechanistic theories and explanations for biological effects of electromagnetic fields on intra and extracellular environment have been discussed. The foundations of biophysical interactions such as bioelectromagnetic and biophotonic communication and organization within living systems are expounded with special consideration for spatiotemporal aspects of electromagnetic topology, leading to the potential of multipolar electromagnetic systems. The future direction for the use of biostimulation using bioelectromagnetic, biophotonic and electrochemical methods have been proposed for biotechnology industries in general with emphasis on an holistic biofuel system encompassing production of algal biomass, its processing and conversion to biofuel

    Intraperitoneal but Not Intravenous Cryopreserved Mesenchymal Stromal Cells Home to the Inflamed Colon and Ameliorate Experimental Colitis

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    BACKGROUND AND AIMS: Mesenchymal stromal cells (MSCs) were shown to have immunomodulatory activity and have been applied for treating immune-mediated disorders. We compared the homing and therapeutic action of cryopreserved subcutaneous adipose tissue (AT-MSCs) and bone marrow-derived mesenchymal stromal cells (BM-MSCs) in rats with trinitrobenzene sulfonic acid (TNBS)-induced colitis. METHODS: After colonoscopic detection of inflammation AT-MSCs or BM-MSCs were injected intraperitoneally. Colonoscopic and histologic scores were obtained. Density of collagen fibres and apoptotic rates were evaluated. Cytokine levels were measured in supernatants of colon explants. For cell migration studies MSCs and skin fibroblasts were labelled with Tc-99m or CM-DiI and injected intraperitonealy or intravenously. RESULTS: Intraperitoneal injection of AT-MSCs or BM-MSCs reduced the endoscopic and histopathologic severity of colitis, the collagen deposition, and the epithelial apoptosis. Levels of TNF-α and interleukin-1β decreased, while VEGF and TGF-β did not change following cell-therapy. Scintigraphy showed that MSCs migrated towards the inflamed colon and the uptake increased from 0.5 to 24 h. Tc-99m-MSCs injected intravenously distributed into various organs, but not the colon. Cm-DiI-positive MSCs were detected throughout the colon wall 72 h after inoculation, predominantly in the submucosa and muscular layer of inflamed areas. CONCLUSIONS: Intraperitoneally injected cryopreserved MSCs home to and engraft into the inflamed colon and ameliorate TNBS-colitis
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