824 resultados para Conselho Nacional do Meio Ambiente (Brasil) (Conama)
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The Solidary Economy is an area that has shown unusual traits to what is preached in the traditional economic organizations, even organizations that have very similar principles, as some cooperatives. This trait is approaching the concept of isonomy proposed by Ramos (1989). Given this context, and the notion that the isonomy is like a ideal type, the objective this work was to evidence particulars of isonomic environment the in economic and solidarity experiences, taking as an empirical research area the Grupo de Mulheres Decididas a Vencer, considered a solidary economic enterprise. For this, we used the descriptive-exploratory research of qualitative nature, where the object of such research is the know enterprise, therefore, also characterized as a case study, which were taken as research subjects six associates, they being the most active in the enterprise. From the five categories that characterize isonomy - minimum standards prescribing, self-gratifying activity, activities undertaken as a vocation, wide system of making decision and primaries interpersonal relations - and from the traits of a solidary economic enterprise the data analysis was built, through content analysis, specifically the categorial analysis. Given this context and reality in which it is Grupo de Mulheres Decididas a Vencer, with minimal rules and procedures for conducting activities, comparing them to a therapy, women choosing to insert in that environment, faced with a democratic space and unfettered bureaucracy in professional interpersonal relationships, in others words, an organizational space where they were shown signs of substantive rationality was possible to conclude that the Group will share experiences and characteristics of isonomy. This disclosure meets the multidimensional social that presupposes Paraecomomic Paradigm, enabling man to enter in different social environments of the economy in order to search for self-actualization
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Perciformes are dominant in the marine environment, characterized as the largest and most diverse fish group. Some families, as Gerreidae, popularly known as silver jennies, carapebas, or mojarras have a high economic potential to marine fish farming, natural explotation and game fishing. Genetic information of these species are of fundamental importance for their management and production. Despite exist over 13,000 marine fish species described, only 2% were cytogenetically analyzed and less than 1% have some reproductive characteristics known. Induced breeding, cytogenetic characterization and cryopreservation of gametes, represent important areas in applied fish studies. In this project cytogenetic analyzes were performed to acess genetic aspects of Gerreidae species, distributed in coastal and estuarine regions of Northeast Brazil. Different methods for identifying chromosomal regions were employed using conventional techniques (Ag-NORs, C-banding), staining with base-specific fluorochromes (DAPI-CMA3), and physical mapping of ribosomal genes 18S and 5S rDNA, through hybridization in situ with fluorescent probes (FISH). The six species analyzed showed remarkable chromosome conservatism. The 18S and 5S ribosomal genes when analyzed in phylogenetic perspective demonstrate varied evolutionary dynamics, suggesting ocurrence of stasis process in some groups and greater dynamism in others. Double FISH with 18S and 5S probes showed both how efficient cytotaxonomic markers in the homogeneous karyotypes of this group of species. The karyotypic pattern identified in addition to the evolutionary aspects of karyotype, are suggestive of existence of low potential of post-zygotic barrier, prompting further research to prospect for artificial interspecific hybridization of these species of commercial importance
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2009
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2009
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In the first decades of 20th century the just instituted Brazilian Republic faced the challenge to modernize the country. Considering that the progress was associated with the exhaustion of the forest reserves and with climatic changes, two big issues were seen as fundamental: To Fight the Droughts and To Defend the Forests; headed by professionals who were dedicated to these ideals. This research starts from the premise that these were the main challenges enforced by nature to the Brazilian development; the general objective was delimited in the search to understand the meaning and the conception of the natural world by this group of professionals who faced the shock between modernizing the country and conserving its natural resources. Aiming to contribute with the construction of the Brazilian environmental history and to bring historical elements to the debate about the environment in the country, the author concentrates his attention to the analyses, the discussions and the actions that preceded the regulation on the use of natural resources and the implementation of the environmental legislation in Brazil, occurred in 1934. The investigation uses as methodological basis the theoretical directions of environmental history, using sources of data still little explored and valued. In such way, it is taken as starting point some published papers about this subject during the period between 1889 and 1934 in two technical magazines the Revista Brazil Ferro-Carril and the Revista do Club de Engenharia. National engineering played a basic role in this process while arguing, projecting and constructing the development. The formulated proposals, after being divulged, had fomented the interchange with other professionals and had favored the advance of ambient questions in Brazil, in the sense to preserve natural resources, to construct more harmonic relations between the society and the nature and to equate the development with the environment preservation
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Droughts surfaced in 1877 as a crucial problem for the birthing Brazilian nation. Engineers, who formed the country's technical and scientific elite, took it upon themselves to study, understand and fight the problem through planned actions of intervention on space. This work, based on proposals and discussions contained in engineering magazines and reports, aims to provide elements for the comprehension of how these systematized actions against droughts, in the Iate nineteenth and early twentieth century, contributed to spatial analysis and the formation of a (then-inexistent) regional and territorial planning discipline in Brazi!. Engineers, by taking up the position of masterminds in the country's modernization, guaranteed for themselves personal economic stability, social prestige and political power. By understanding nature, either as a resource to be exploited or an adversary to national progress, they contributed to the delimitation of the region now known as the Northeast. By seeking to understand the drought phenomenon, they created knowledge about the space they sought to intervene on; by constructing their projects amid political and economical difficulty, they changed the organizational structures of cities and country in the northeast. The proposals for açudes (Iarge water reservoirs) allowed the fixation of population and the resistance against droughts; the roads - railroads and automotive roadways - connected the sertão to the capitais and the coast, speeding up help to the affected populations during droughts and allowing the circulation of goods so as to strengthen the local economies in normal rimes. The adopted practices and techniques, adapted from foreign experience and developed through trial and improvement, were consolidated as an eminently spatial intervention course, even if a theoretical body of regional or territorial planning wasn't formed in Brazil. Regional Planning proper was first applied in the country in the Northeast itself, in the 1950s, based off an economical view of reality in order to achieve development. The engineer's work prior tothat date, however, cannot be dlsconsldered. It was proved that, despite facing financial and political hurdles, engineers had a profound commitment to the problem and intended to act systematically to transform the economical and social relations in the region, in order to be victorious in their struggle against droughts
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The necessity of the insertion of the capital of Rio Grande do Norte in the world-wide commercial scene and its claim as the seat of political power, in ends of nineteenth and beginning of twentieth century, determined the direction of urban interventions undertaken by government to restructure the city. In that matter, there were several actions of improvements and embellishment in Natal, which had, as a starting point, the adequacy works of the port, located in the Ribeira quarter, with the aim of ending the physical isolation that reinforced its economic stagnation. Besides the problems faced in the opening bar of the Potengi River, and would complement the required improvements, other barriers demonstrate the tension established between the physic-geographic field and the man: the flooded and slope which connected Cidade Alta and Ribeira the first two quarters of the city.The execution of these works demanded knowledge whose domain and application it was for engineering. But, how the actions done for the engineers, in sense to transform natural areas into constructed spaces made possible the intentional conformation of the quarter of the Ribeira in a commercial and politician-administrative center, in the middle of the XIX century and beginning of the XX? Understand, therefore, the employment effects of technology on the physical-geographical Ribeira, is the objective of this work that uses theoretical and methodological procedures of Urban Environmental History, by analyzing the relationship between the environment and the man, mediated by knowledge and use of technologies. The documental research was used, as primary sources, the Messages of the Provincial Assembly Government that later became the Legislative Assembly of Rio Grande do Norte reports and articles on specialized publications, in addition to local newspapers. The work is structured in five chapters. First, some comments about Urban Environmental History (Chapter 1) supplemented with analysis of the conceptual construction of nature in the Contemporary Era and its application in the city (chapter 02), the following chapters (03 and 04) deal with the rise of engineers as a active group in the Brazilian government frameworks and their vision about the nature inside the urban environment and it is studied how the professional technicians dealt with the improvement work of the harbor and in the shock with the natural forces. Other works that would complement this "project" of modernization and had had natural obstacles to be removed the Ribeira flood and slope constitute the subject of the fifth chapter. Finally, some final considerations retake the initial discussions aiming an association between the technique and the nature as junction elements inside the process of constitution of a Modern Natal
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The Sectoral Plan was inserted as an urban instrument in Master Plan of Natal (LC82/07), since then it has been deepened. It is guided to the equitable distribution of the benefits of urbanization, aimed the efetivation of the Right to the City and the Environmental function of property in the context of urban planning. Thereby, the Sectoral Plan was inserted into the perspective of promoting a favorable field for applying articulated of instruments defined in the Master Plan, and them with urban interventions, through the deepening of macrozoning - coming out of dimension of the city and going to a small fraction of the urban by reducing scaling - facilitating democratic management in accordance with the City Statute. However, the absence of regulation and the conceptual and operational fragility of the instrument, approached it of other existent experiences and instruments, limiting its application and evaluation. Considering the innovative nature of the instrument and the intense social participation, we inquire about conceptual and operational elements which could give greater effectiveness to Sector Plan in construction? Guided by that question, this dissertation aim to understand the nature and operational procedures of Sectoral Plan, seeking to do indications about the conceptual and operational aspects of implementing a Sector Plan. The neighborhood of Ponta Negra was selected as empirical universe because it was the first sector defined in the Master Plan. This research adopts reference authors who´s make reflection and insights about the matrix of Urban Reform, whose principles constitute the basis of the trajectory of revision of urban planning in Brazil since the 1980s, highlighting Raquel Rolnik, Nelson Saule Júnior and Orlando Alves dos Santos Júnior. For the local monitoring, we use the authors Alexsandro Ferreira Cardoso Silva, Rosa Maria Pinheiro Oliveira e Marise Costa da Souza Duarte, in order to understand the growth dynamics of Natal, lawfully and urbanistically
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The general objective of this study was to contribute to the understanding of the chemical evolution of fluids that percolate through carbonate rocks of the Jandaíra Formation. The oxidation and reduction conditions in which grains, source and cement were formed was investigated using the cathodoluminescence technique (CL). The study area is located in the west part of the Potiguar Basin (Fazenda Belém field) and Rosário Ledge (Felipe Guerra municipality, State of Rio Grande do Norte, Brazil). The analysis of thin sections of carbonate rocks under CL revealed that grains (allochemical or not) and diagenetic products (micritization, dolomitization, neomorphism and cementation) exhibit since absence of luminescence the various luminescence colors (yellow, orange, red, brown, and blue) in a variety of intensities. As pure calcite shows dark blue luminescence, the occurrence of different luminescence colors in calcite crystals suggest one or more punctual crystal defects such as free electron, free space and impurity. The dyeing of thin sections with alizarin and potassium ferrocyanide revealed the absence of ferrous carbonate in the different lithotypes of Jandaíra Formation. Therefore, the different colors and intensities of CL observed in these rocks are probably caused by the presence of ion activators such as Mn2+ and is not an activator/inhibitor combination. In the same way, the absence of luminescence is very probably caused by the absence of activator ions and not due to the low concentration of inhibitor ions such as Fe2+. The incorporation of Mn2+ in the different members of the Jandaíra Formation must have been controlled by the redox state of the depositional environment and diagenesis. Therefore, it is possible that the luminescent members have been formed (e.g.,ooids) or have been modified (gastropod neomorphism) under reduction conditions in the depositional environments, in subsurface during the burial, or, in the case of Rosario Ledge samples , during the post-burial return to surface conditions. As regards the sudden changes from low to moderate and to strong luminescence, these features should indicate the precipitation of a fluid with chemical fluctuations, which formed the frequent zonations in the block cement of the Rosario Ledge samples. This study suggests that the different intensities and colors of CL should be correlated with the Mn2+ and Fe2+ contents, and stable isotopes of samples to determine the salinity, temperature, pH e Eh conditions during deposition
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Dissertação (mestrado)—Universidade de Brasília, Faculdade de Agronomia e Medicina Veterinária, 2016.
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Dissertação (mestrado)—Universidade de Brasília, Instituto de Letras, Departamento de Línguas Estrangeiras e Tradução, Programa de Pós-Graduação em Estudos da Tradução, 2016.
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A mudança climática é um processo decorrente do efeito acumulativo contínuo das emissões excessivas de gases de efeito estufa e de aerossóis provenientes da intensificação de algumas atividades antrópicas, produzindo mudanças no clima do planeta. Tais mudanças podem alterar a incidência de doenças nas plantas. O conhecimento de técnicas de geoprocessamento pode ser de grande importância para aplicações no setor agrícola, auxiliando na elaboração de estratégias para minimizar prejuízos futuros causados pelos impactos climáticos globais. A ferrugem tropical do milho, causada por Physopella zeae, é responsável por grandes danos na produção nacional. Este trabalho teve como objetivo avaliar a distribuição geográfica dessa doença com o uso de ferramentas SIG (Sistema de Informações Geográficas). Foram obtidos mapas de favorabilidade climática para o desenvolvimento da doença na cultura do milho, utilizando condições climáticas propícias definidas por Casela et al. (2006), entre os meses de janeiro a junho, para a normal climatológica (1961-1990) e para o clima futuro de 2080, do IPCC (Painel Intergovernamental de Mudanças Climáticas). Os resultados indicam que haverá um deslocamento da ncidência da doença das regiões Norte, Nordeste para as regiões Sudeste e Sul no futuro, permanecendo também na região Centro-Oeste.
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O estudo evidencia o ecoturismo, relacionando-o com ecologia e com a dinâmica e evolução da sociedade moderna que exige espaços de consumo para lazer. Analisa a interface do turismo com o meio ambiente, explica impactos socioambientais associados à mercantilização da natureza e identifica soluções. Associa o ecoturismo aos compromissos de mudanças da sociedade de consumo, difundindo princípios de sustentabilidade. Apresenta perfil de ecoturistas e diferenciações entre geossistema e ecossistema. Nos geossistemas Pantanal, Amazônia, Litoral, Serras, Caatingas e Cerrados estão ecossistemas propícios a interpretação ambiental ou a descoberta da natureza com atribuição de significados. Além de técnicas para realização adequada do lazer em Unidades de Conservação Ambiental, histórias de trilhas e formas diferenciadas de realizá-las. Aponta utilização de forma sustentável do patrimônio natural e cultural, proteção ambiental, consciência ecológica e oportunidades às comunidades, com resultados econômicos favoráveis à melhoria das condições de vida dos pólos de ecoturismo. Explica a produz de baixos impactos ambientais, sustentação socioeconômica para unidades de conservação ambiental e alternativas para economias locais, com agricultura familiar, extrativismo, pesca artesanal, atividades ligadas à natureza. Toma como base áreas de ecoturismo no Ceará - Brasil que respeitam exigências éticas para a sustentabilidade do ecoturismo, e em especial da sociedade.
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Introdução alterações realizadas no meio ambiente em busca da melhoria da qualidade de vida das pessoas inseridas em locais que apresentam grande potencial hídrico são temáticas de estudos de vários pesquisadores, com destaque para as alterações ocasionadas pela formação de lagos artificiais no Rio Paraná (Brasil), para a construção de usinas hidrelétricas e a conseqüente geração de energia. Objetivos: identificar os impactos gerados nas atividades turísticas desenvolvidas em áreas próximas ao Município de Presidente Epitácio (extremo oeste do Estado de São Paulo, Brasil); descrever as atividades turísticas desenvolvidas próximas ao lago; enfocar as potencialidades turísticas. Procedimentos: levantamento das informações acerca do nível das cotas do rio e do lago artificial e identificação das atividades turísticas realizadas no local; análise e organização dos dados em quadros demonstrativos contendo informações das características ambientais, das potencialidades turísticas, dos eventos turísticos; apresentação de propostas que visam auxiliar administradores e população local no complexo processo de tomada de decisões, de geração de emprego e renda, de inclusão social e da melhoria da qualidade de vida, tendo como base as atividades turísticas efetivas e potenciais. Resultados: descrições das atividades turísticas realizadas próximo ao local da área de estudo e verificação dos principais impactos causados pela atividades.
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O uso de tecnologias de informação geográfica vem passando por grandes transformações, originadas nos avanços tecnológicos os quais tem proporcionado, uma nova opção para a disseminação das informações. Desde os tempos remotos até a atualidade, as informações e dados espaciais têm sido apresentados de forma gráfica pelos cartógrafos e utilizados por navegadores e demais profissionais. No Brasil, assim como nas demais partes do mundo, os avanços tecnológicos ocorridos nos últimos anos, com o aumento da velocidade de processamento dos computadores, com as novas tecnologias de armazenamento, com a queda significativa nos preços dos equipamentos e softwares, com a maior oferta de dados de sensores remotos, aliado à diminuição nos custos de aquisição de equipamentos e conversão de dados, tem contribuído para a disseminação e popularização das tecnologias de informação geográfica. Face ao exposto, este trabalho tem como objetivo apresentar um breve histórico do uso de tecnologias de informação geográfica no Brasil, abordando aspectos conceituais (geomática, geoprocessamento, sistema de informação geográfica, geotecnologias), principais aplicações (gestão municipal, meio ambiente, planejamento estratégico, agronegócio, concessionárias e redes), softwares (ArcGIS, ArcInfo, ArcView, AutoCAD Map, ENVI, ERDAS, GRASS, IDRISI, MAPINFO e SPRING), provedores de dados (IBGE, INPE, INMET, MMA/IBAMA, EMBRAPA, SIVAM), bem como as perspectivas futuras.