74 resultados para DOM


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La présentation des logiques territoriales du développement, objet du présent article, résulte de la compilation de lectures systématisées, dont l'objectif est présenter les principales associations entre des théories, concepts et typologies. La relation exprimée, hypothétiquement, la possibilité d'une action collective intentionnelle des agents et les institutions pour le développement.

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Les politiques actuelles de développement territorial sont parfois rattachées, de manière intéressée, à l'utilisation des ressources locales et à l'exécution de projets spécifiques d'agents déterminés. Ce phénomène caractérise ce qui est appelé ici de: « effet modernisateur », résultat des pratiques de quelques agents pour rendre possible leurs prétentions particulières. Ces pratiques finissent par propager des idées de développement et de modernisation qui ne se réalisent pas de forme égalitaire dans le local.

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En ce travail nous discutons les limitation et les possibilites du développement qui rèsultent du process d'implantation d'une Association Intermunicipalee de la regiòn centrale du Estado São Paulo - Brasil. C èst une iniciative locale, sous les règles de la coopération Brasil-Italia. Les participants des cette association sont les villes du Araraquara, Ibaté, Gavião Peixoto, Ribeirão Bonito e São Carlos. En l'article ce sont aporteè les limitatiòn y les possibilitees de la gestion publique en la region. L association est proposeè comme un instrument du gestiòn de la politique locale.

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Cette étude évalue les implications de la Bolsa Familia dans les éléments du thème de la sécurité alimentaire, en prenant comme paramètres des bénéficiaires de la ville de Araraquara, SP. Des formulaires de demande de semi-structurés avec les bénéficiaires et les observations de terrain, le diagnostic a été réalisée dans le but de l'évaluation théorique des politiques publiques.

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Cet article rassemble des concepts, des théories et des données afin de comprendre comment ils articulent les nouvelles formes de gouvernance du territoire, à travers les stratégies institutionnelles et organisationnelles des acteurs locaux à mobiliser les actifs spécifiques des territoires dans les projets de développement local. Cette étude propose une base théorique pour les études appliquées à essayer de comprendre comment exprimer les organisations et institutions, ses acteurs et ses agents dans l'environnement de la structure de gouvernance territoriale, étant donné les cours divers secteurs socio-spatiale et territoriale au Brésil. Ainsi, les arrangements productifs locaux (APL) et Tours apparaissent comme des stratégies novatrices pour la gouvernance territoriale étant donné le caractère de sa propre configuration de la relation entre l'Etat, privées et autres institutions sociales.

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The binding and availability of metals (Al, Ca, Cd, Co, Cr, Cu, Fe, Mg, Mn, Ni, Pb, Zn) in therapeutically applied peat (GroBes Gifhorner Moor, Sassenburg/North Germany) was characterized by means of a versatile extraction approach. Aqueous extracts of peat were obtained by a standardized batch equilibrium procedure using high-purity water (pH 4.5 and 5.0), 0.01 mol l(-1) calcium chloride solution, 0.0 1 mol l(-1) ethylenediaminetetraacetic acid (EDTA) and 0.01 mol l(-1) diethylenetriarnine pentaacetic acid (DTPA) solution as metal extractants. In addition, the availability of peat-bound metal species was kinetically studied by collecting aliquots of extracts after different periods of extraction time (5, 10, 15, 30, 60 and 120 min). Metal determinations were performed by atomic spectrometry methods (AAS, ICP-OES) and dissolved organic matter (DOM) was characterized by UV/Vis measurements at 254 and 436 nm, respectively. of the extractants studied Ca, Mg and Mn were the most available metals, in contrast to peat-bound Fe and Al. The relative standard deviation s(r) of the developed extraction procedures was mostly in the range of 4 to 20%, depending on the metal and its concentration in peat. A pH increase favored the extraction of metals and DOM from peat revealing complex extraction kinetics. Moreover, a competitive exchange between peat-bound metal species and added Cu(II) ions showed that > 100 mg of Cu(II) per 50 g wet peat was necessary to exchange the maximum of bound metals (e.g. 21.8% of Al, 3.9% of Fe, 79.0% of Mn, 81.9% of Sr, related to their total content). (C) 2002 Elsevier B.V. B.V. All rights reserved.

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The thermal structure, heat content and stability were studied in Lakes Dom Helvécio and Carioca during an annual cycle. It was found that the maximum heat content, stability and work of the wind in Lake Dom Helvécio correspond to two, four and four times, respectively, the values for the Lake Carioca. These difference can be attributed to morphometric differences in the lakes. A long-term record of heat content and stability for lake Carioca is also presented. Diel variations were studied in summer and winter. The tropicality of the lakes is discussed and compared with other lacustrine systems. © 1989 Kluwer Academic Publishers.

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This study aimed to establish the adequate concentrations of nitrapyrin for the effective inhibition of oxygen demand required for the oxidation of nitrogen compounds during aerobic mineralization of leachate. The aquatic macrophyte Myriophyllum aquaticum was used as a source of dissolved organic matter (DOM). The leachate was incubated in several chambers, containing different composition and treatments: (i) treatment with leachate (DOM), (ii) treatment with DOM plus nitrapyrin in different concentrations (10; 25 and 50 mg L-1), aiming at finding the right concentration that inhibits the nitrification process, (iii) treatment with DOM plus NH4SO 2, (iv) treatment containing DOM and nitrapyrin plus NH 4SO2, and (v) treatment with DOM plus azide. The dissolved oxygen amount in each incubation treatment was periodically measured. The results indicated that the ratio of 10 mg L-1 of nitrapyrin for each 10 mg C of leachate is efficient in inhibiting the oxidation of nitrogen compounds from aquatic macrophytes.

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A search for microscopic black holes in pp collisions at a center-of-mass energy of 7TeV is presented. The data sample corresponds to an integrated luminosity of 4.7 fb1 recorded by the CMS experiment at the LHC in 2011. Events with large total transverse energy have been analyzed for the presence of multiple energetic jets, leptons, and photons, which are typical signals of evaporating semiclassical and quantum black holes, and string balls. Agreement with the expected standard model backgrounds, which are dominated by QCD multijet production, has been observed for various combined multiplicities of jets and other reconstructed objects in the final state. Model-independent limits are set on new physics processes producing high-multiplicity, energetic final states. In addition, new model-specific indicative limits are set excluding semiclassical and quantum black holes with masses below 3.8 to 5.3TeV and string balls with masses below 4.6 to 4.8TeV . The analysis has a substantially increased sensitivity compared to previous searches.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Ciências Sociais - FFC

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Pós-graduação em Design - FAAC

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Pós-graduação em Geociências e Meio Ambiente - IGCE

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)