873 resultados para Comunidade(s)
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Este trabalho analisou o processo de conservação dos recursos naturais na Amazônia Paraense por agricultores familiares que produzem em sistemas agroflorestais. Estudou-se a realidade produtiva de 18 famílias que possuem SAFs, por meio da aplicação de um questionário de caracterização dos seus agroecossistemas. Na comunidade Santa Luzia mantêm-se consideravelmente a vegetação natural devido o processo de aumento da implantação de SAFs, em que 94,4% das famílias que tem SAFs possuem áreas de reserva legal. Sistemas agroflorestais devem ser indicados para comunidades rurais da Amazônia para reduzir desmatamentos e queimadas durante o desenvolvimento de atividades agrícolas e florestais.
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A agricultura de base familiar é mais apropriada para o estabelecimento de estilos de agricultura sustentável, principalmente pela sua maior capacidade de proceder a utilização dos agroecossistemas aos ideais de sustentabilidade. A produção agropecuária de base familiar, na maioria das vezes, tem um caráter de manutenção e sustentação das famílias no campo. O objetivo deste trabalho foi identificar as atividades pecuárias de mais exploradas por agricultores de base familiar da comunidade de Sítio de Areia, município de Água Nova- RN. Verificou-se que 97% dos agricultores criam uma ou mais espécies de animais domésticos para fins alimentares e/ou comerciais, verificou-se que a avicultura foi predominante com 47% de presença nas unidades agropecuárias sendo esta atividade mantida pelas esposas dos agricultores.
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A agricultura camponesa é responsável, por maior parte dos alimentos da mesa do brasileiro, por meio dos produtos comercializados nas cidades e nos municípios. Entretanto, a influência da agricultura baseada na revolução verde, a agricultura camponesa passou por um processo de exclusão e de desvalorização gerando impactos sociais que afetaram significativamente a sua sustentabilidade. A pesquisa analisa fatores que influenciam a saída ou permanência da juventude camponesa na comunidade ribeirinha Uruá, em Autazes/AM. Para compreender a dimensão da realidade desses jovens foi analisado o universo dos jovens no meio rural, utilizando o método estudo de caso, com aplicação de questionário semiestruturado para 16 jovens. Os resultados indicam que, apesar de gostarem do ritmo da vida no campo, consideram o trabalho muito penoso e com baixo nível de valorização. A migração para a cidade é mais comum entre as mulheres, mas todos saem em busca de emprego e de educação com qualidade.
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O presente trabalho realizado na comunidade São Francisco/Uruá, localizada no município de Autazes ? AM levantou questões sobre alimentação, produção agrícola e soberania alimentar. Considerando a importância dos temas para o fortalecimento da agricultura sustentável na Amazônia, preocupa a adoção de práticas provenientes da agricultura ?moderna? ou agronegócio, como o plantio em monocultivos, técnica essa, que reduz a diversidade na produção nos sistemas agroalimentares dos moradores levando ao aumento de consumo de alimentos industrializados e interferindo na cultura alimentar das populações locais. O método de pesquisa adotado foi o Estudo de Caso e lançou mão de metodologias participativas utilizando ferramentas como questionário semiestruturado, observação participante, conversa informal e relatos de moradores da comunidade. A pesquisa procurou ter uma visão crítica da realidade baseada no estudo da complexidade dos múltiplos casos que a agricultura familiar da Amazônia apresenta.
O descompasso de uma experiência: avaliação do Programa Habitar Brasil na Comunidade África-Natal/RN
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This research deals with the evaluation of the Programa do Governo Federal para Urbanização de Favelas Habitar Brasil(1993) carried out in the Africa slum - Redinha neighbourhood in Natal-Rn. This study carried out in period from 2005 to 2006 searches to identify the effects of the actions proposed by Program in 1993-1994 about the current urbanistic configuration of the Africa community. It analyzes the effectiveness in the process of achievement of the considered objectives to habitation, communitity equipments, infrastructure and agrarian regularization. On the evaluation process, it has been as reference the works developed by Adauto Cardoso (2004), Blaine Worthen (2004), Ronaldo Garcia (2001) and Rosângela Paz (2006). About the Habitational Policy with approach to the Urbanistic Right and the right to the housing, the reflections by Raquel Rolnik, Nabil Bonduki, Ermínia Maricato, Saule Júnior, Betânia de Moraes Alfonsin and Edésio Fernandes are main references. To gauge the execution of the objectives proposed by Habitar Brasil in 1993, it has searched in the documentary data of the time and in information gotten in interviews with technicians that had participated of the program, consistent references on what was considered, what was executed and the process of the intervention of Habitar Brasil in the Africa community. The area analysis in 2005-2006 has developed on the base of the urbanistic survey of the current situation from the four performance lines of the Program: habitation, infrastructure, community equipments and agrarian regularization, with a current urbanistic evaluation of Africa considering the intervention carried out in 1993 and 1994. The study points out the context of Brazilian Habitational Policy where the Programa Habitar Brasil was launched, explaining the main principles of the Program. In terms of local, it empahsizes the administrative-political factors that had contributed so that Natal-Rn city has been pioneering in the resources captation of Habitar Brazil (1993). Considering Habitar Brazil in Africa, the work argues and presents the intervention diagnosis and the proposal, developed by Program in 1993 evidencing the local problem of the time. After that, it makes a current reading of the area, identifying in 2006 representative elements of Habitar Brasil (1993-1994) for the Africa community. It identifies significant advances in the constitution of the institucional apparatus of the plaining system of Habitation of Social Interest for the city of Natal and points the fragilities in the implementation of the urban infrastructure actions and above all in the achievement of the objectives of the agrarian regularization
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The major aim of this study was to test the hypothesis that the introduction of the Nile tilapia (Oreochromis niloticus) and the enrichment with nutrients (N and P) interact synergistically to change the structure of plankton communities, increase phytoplankton biomass and decrease water transparency of a semi-arid tropical reservoir. One field experiment was performed during five weeks in twenty enclosures (8m3) to where four treatments were randomly allocated: with tilapia addition (T), with nutrients addition (NP), with tilapia and nutrients addition (T+NP) and a control treatment with no tilapia or nutrients addition (C). A two-way repeated measures ANOVA was done to test for time (t), tilapia (T) and nutrient (NP) effects and their interaction on water transparency, total phosphorus, total nitrogen, phytoplankton and zooplankton. The results show that there was no effect of nutrient addition on these variables but significant fish effects on the biomass of total zooplankton, nauplii, rotifers, cladocerans and calanoid copepods, on the biovolume of Bacillariophyta, Zygnemaphyceae and large algae (GALD ≥ 50 μm) and on Secchi depth. In addition, we found significant interaction effects between tilapia and nutrients on Secchi depth and rotifers. Overall, tilapia decreased the biomass of most zooplankton taxa and large algae (diatoms) and decreased the water transparency while nutrient enrichment increased the biomass of zooplankton (rotifers) but only in the absence of tilapia. In conclusion, the influence of fish on the reservoir plankton community and water transparency was greater than that of nutrient loading. This finding suggests that biomanipulation should be a greater priority in the restoration of eutrophic reservoirs in tropical semi-arid regions
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The biomonitoring technique for water quality in water bodies has been incorporated increasingly in management of the natural resources, using mainly indices of its aquatic community characteristics. In Brazil the first efforts to use this technique was restricted to the South and the Midwest region of this country. Located in the northeast region, this study was conducted at Rio Grande do Norte state and had as main objective the assessment of water quality in the Piranhas-Açu river using benthic macroinvertebrates community as biological indicators. Thus, were applied two biotic indices, the BMWP (Biological Monitoring Working Party score system) and the IBF (Family Biotic Index). According the requirements of these indices, two periods of sampling were determined as basic methodology, in dry seasons of 2006 and 2007. The sampling sites were around the municipalities of Açu, Ipanguaçu, Alto do Rodrigues and Pendências. Physical-chemical measurements; a protocol of rapid assessment of diversity of habitats, and determination of the degree of tolerance of each taxon to organic pollution were also performed. The most abundant organisms found in the river were tolerant with the prevalence of Chironomidae (Diptera) and Melanoides tuberculata. This results, together with those ones got in indices application, showed a considerable organic pollution in the four sample places and the reaches were classified as modified to impacted. According to the used indices, this study suggest that this river have significant alteration in the biotic community and water quality on the organic pollution, and this fact, occurs in the reach of the river further downstream, where were expected a good water quality. Considering these results, measures aiming the conservation of this water body are needed regarding as it is inserted into a fragile ecosystem with dry season phenomenon, and the water of this river has extremely importance for the local economy
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Top-down (grazing) and bottom-up (nutrient, light) controls are important in freshwater ecosystems regulation. Relative importance of these factors could change in space and time, but in tropical lakes bottom-up regulation has to been appointed as more influent. Present study aimed to test the hypothesis that phytoplankton growths rate in Armando Ribeiro reservoir, a huge eutrophic reservoir in semi-arid region of Rio Grande do Norte state, is more limited by nutrient available then zooplankton grazing pressure. Bioassay was conduced monthly from September (2008) to August (2009) manipulating two levels of nutrients (with/without addition) and two level of grazers (with/without removal). Experimental design was factorial 2X2 with four treatments (X5), (i) control with water and zooplankton from natural spot ( C ), (ii) with nutrient addition ( +NP ), (iii) with zooplankton remove ( -Z ) and (iv) with zooplankton remove and nutrient addition ( -Z+NP ). For bioassay confection transparent plastic bottles (500ml) was incubate for 4 or 5 days in two different depths, Secchi`s depth (high luminosity) and 3 times Secchi`s depth (low luminosity). Water samples were collected from each bottle in begins and after incubates period for chlorophyll a concentration analysis and zoopalnktonic organisms density. Phytoplankton growths rates were calculated. Bifactorial ANOVA was performance to test if had a significant effect (p<0,005) of nutrient addition and grazers remove as well a significant interaction between factors on phytoplankton growths rates. Effect magnitude was calculated the relative importance of each process. Results show that phytoplankton growth was in generally stimulated by nutrient addition, as while zooplankton remove rarely stimulated phytoplankton growth. Some significant interactions happening between nutrient additions and grazers remove on phytoplankton growth. In conclusion this study suggests that in studied reservoir phytoplankton growth is more controlled by ascendent factors than descendent
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It is important to evaluate the quality of water for proper management of these resources, since the increase of environmental degradation and the multiple use of water resources are decreasing the quality of water consumed by living beings. The objective of this study was to characterize the phytoplankton community and its variations during periods of dray and rain in Jiqui Lake located in Parnamirim, RN. It was also aimed to analyze the physical and chemical factors of this environment, in order to contribute to the knowledge of water quality used for human consumption. The collection of water samples were carried out in September 2008 to August 2009. The collection of the phytoplankton community was carried out in four sampling sites (surface, bottom, margin of the lake without macrophytes and site dominated by macrophytes). Phytoplankton was collected using plankton net of 20m. The analysis of nutrients and identification of phytoplankton were performed in the laboratory. The results indicate that concentration of chlorophyll a was high in the bottom with mean value of 1.07 μgL-1 (SD ± 1.61). During the study period there was a dominance of the following species: Euglena gracilis, Trachelomonas sp, Cyclotellas sp, Gomphonema apuncto, Navicula cuspidata var. cuspidata, Navicula sp, Rhopalodia gibba. There was homogeneity between limnological values in the four study sites, with significant difference between the periods of drought and rain. The Jiqui Lake is considered oligotrophic due to its low concentrations of chlorophyll a, high transparency and low levels of nutrients. The values of BOD and chlorophyll a concentration remained below the permitted standards existing for freshwaters in Brazil, thus the water from Lake Jiqui is of good quality, suitable for human consumption.
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In Brazilian semiarid region, the majority of water bodies are temporary and the biodiversity in these ecosystems is poorly known. The goal of this study was to describe the temporal variation of benthic macroinvertebrates in an intermittent stream in the Brazilian semiarid region. From March to July of 2009, surveys of benthic macroinvertebrates and water physiochemical parameters were done in a first order stream located at Piranhas-Açu River basin. 25 macroinvertebrates families were found, 21 belonging to Insecta class. The chironomids were the most abundant group during all study period and were represented by 19 genus. The largest densities and taxonomic richness were seen in the drying phase of the stream while the smallest values were found in the period with the heaviest rainfalls ( wet phase ). Only the families Chironomidae and Ceratopogonidae were found during all study period, suggesting that these groups have better adaptations to support floods and droughts. Furthermore, these two groups seemed to be pioneering in this stream. Among the chironomids, Paratendipes dominated the period of floods while Tanytarsus were more abundant in the drying phase . This study showed that hydrological fluctuation is the main force influencing the macroinvertebrate community in this stream, therefore, efforts seeking the conservation and management of Brazilian semiarid water bodies should consider this high natural variability in flow regime
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The current study examined spatial-temporal modifications and water quality through chemical and biotic indicators during both dry (January, February and November 2006) and wet seasons (March to June 2006). This study was carried out in Armando Ribeiro Gonçalves Reservoir, RN, Canal do Pataxó and after the water station treatment (WST). The physical-chemical parameters were measured in situ and inorganic nutrients, chlorophyll a and Free Oxygen Demand (FOD) were analyzed in laboratory conditions. Quali quantitative analyses of phytoplankton were carried out utilizing Sedgwick-Rafter camera. Results indicate that DQO concentrations were low. FOD concentrations in the reservoir were comparatively higher in the dry season (5.21 mgL-1; 5.64 mgL-1 e 6.05 mgL-1) in relation to the wet season (4.52 mgL-1; 4.12 mgL-1 e 4.92 mgL-1), in surface, intermediate and bottom waters, respectively. FOD values were inferior to 1.0mgL-1in both Canal do Pataxó and after WST, which is considered adequate for public use reservoirs. Although FOD concentrations were low, Armando Ribeiro Gonçalves Reservoir, Canal do Pataxó and WST were classified as euthophizied, mesotrophic ad oligotrophic, respectively, considering the Index of Trophic State Criteria. Chlorophyll a concentrations in the study reservoir were higher in the surface (199.2 µgL-1) during the wet season, whereas in Canal do Pataxó concentrations decreased from 1.56 µgL-1 to 0.028 µgL-1, and after WST values were low (0.059 µgL-1). Dominance of cianobacterias, such as Planktotrhix agardhii (dry season) and Microcystis sp (wet season) was registered in all three areas. In the reservoir and Canal do Pataxó, density of cianobacterias, such as P. agardhii and Microcistys sp., was superior to the values allowed by the Health ministry (HM). However, after WST, density values of cianobacteria were inferior to values established by the HM
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Relatório de Estágio apresentado para a obtenção do grau de Mestre em Enfermagem de Reabilitação
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Dissertação de Mestrado apresentada ao ISPA - Instituto Universitário
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Relatório de Estágio apresentado para a obtenção do grau de Mestre em Enfermagem de Reabilitação
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Há, nos museus, portas abertas ao conhecimento da cultura e identidade dos territórios. Pelas mesmas portas entram desafios e exigências comunitárias. Em consequência dos ciclos de mudanças políticas, ideológicas e sociais, os museus tiveram de apartar-se do condão de depósitos frios e pedantes de objetos bonitos, para se aproximarem das populações e dos seus problemas. Os encontros internacionais, promovidos por profissionais da museologia e por organismos que atuam no setor, potenciaram a reflexão sobre o papel dos museus na sociedade. A estas instituições culturais passou a fazer parte a função da educação, permitindo que museus e tutelas integrem, nos seus programas, ações que fomentem democratização cultural dos seus públicos. Os serviços educativos têm, por isso, conquistado cada vez mais terreno, facultando a instituições escolares ou sociais, famílias e comunidade em geral, um maior e mais eficaz usufruto do acervo que os museus albergam. As linguagens artísticas são, com efeito, consideradas neste relatório de projeto, como estratégias essenciais para a mediação e interpretação do património museológico junto da comunidade, com vista ao seu envolvimento. É no Museu da Comunidade Concelhia da Batalha, nascido na linha da sociomuseologia, que se desenvolve um projeto que utiliza o teatro como estratégia de intervenção. Fundamentado nas funções dos museus de comunidade e na linguagem teatral, o presente relatório reúne as diversas ações desenvolvidas com um conjunto de famílias, no museu, ao longo de seis meses, e o seu culminar na apresentação pública de um espectáculo inspirado na exposição. A intervenção realizada pretendeu uma maior inclusão da comunidade no museu. As famílias foram, com efeito, o grupo de trabalho com o qual se baseou um projeto assente nos princípios da investigação-ação. A estruturação faseada das etapas de trabalho tornou o grupo mais próximo do museu e mais conhecedor dos seus conteúdos. O envolvimento destas pessoas, de várias faixas etárias e unidas por laços familiares, estendeu o interesse a outros representantes da comunidade, tal como se havia perspetivado. O estudo permitiu ainda entender como um projeto teatral pode integrar a comunidade, enquanto participante e espectadora, estimulando novas interpretações sobre o discurso museológico. Verifica-se ainda como o museu e o teatro encontram afinidades, quer enquanto espaços cénicos, quer enquanto potenciadores criativos de significados. Implementar o teatro no museu, não só desenvolve competências pessoais e sociais, como amplifica a exploração de temas que têm por base a identidade e o património comunitários.