923 resultados para Quaternary Convergence


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Sanitary and phytosanitary matters have acquired greater significance in the region's trade, as reflected in the significant number of complaints brought before the various dispute settlement mechanisms pertaining to the regional integration schemes. This may be attributed to the importance of the Latin American countries in world agricultural trade and to different phytosanitary and zoosanitary standards required by each. Given the multiplication of bilateral and plurilateral agreements in Latin America and the Caribbean, convergence on the sanitary standards required under such accords is crucial for the trade integration of a region that is an agro-exporter par excellence. Convergence is essential to facilitate market access and expedite trade flows. This bulletin assesses convergence of standards in the bilateral and plurilateral trade agreements signed by the countries of the region, the treatment afforded to the principles contained in the World Trade Organization (WTO) Agreement on the Application of Sanitary and Phytosanitary Measures (SPS Agreement) and the progress the region has made relative to that Agreement.

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The similarities of competition provisions in integration and other intraregional agreements and the dissemination of this information could serve as a basis for progress in cooperation and convergence on this issue in the region. The negotiation processes that have taken place for these agreements have also enhanced communication between the national agencies concerned, leading to processes of learning and harmonization; these processes could be strengthened as part of the current efforts of administrating and implementing trade agreements. This edition of the FAL Bulletin reviews the information available in order to see how progress can be made on this issue on the basis of the analysis and bibliography of Álvarez and others (2006), and Silva and Álvarez (2006).

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This issue of the FAL bulletin analyses transport and mobility policy in Latin America, where the lack of integrated public policies for urban mobility and the failure to take coordinated action over time make it difficult to prioritize investments and coordinate existing initiatives (both public and private).

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Today, forty years since its birth, the Caribbean integration has reached its limit.1 2 Consequently, there is urgent need to respond to the current realities and emerging global trends — which require greater engagement from the public, students, academics and policymakers — in moving the Caribbean Community towards a new trajectory of Caribbean convergence. The immediate concern is to devise ways of improving the convergence process among Latin American and Caribbean countries. This convergence process will have to be sensitive to both current and emerging global dynamics. This paper presents the roadmap of a new trajectory towards Caribbean convergence, sensitive to both current and emergent regional and global trends. It begins in Section I by identifying the emerging international political and economic trends that provide a backdrop against which the discussion on Caribbean convergence is squarely placed. Section II discusses the need for a new strategy of convergence, and provides the conceptual framework of Caribbean convergence. Section III spells out the pillars, strategies and delivery mechanisms of Caribbean convergence, and highlights the role of Trinidad and Tobago in this process. The paper concludes by pointing out the urgent need for a regional synergy of economic logic and political logic.

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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The contemporary individual finds on the Internet and especially on the Web facilitating conditions to build a basic infrastructure based on the concept of commons. He also finds favorable conditions which allow him to collaborate and share resources for the creation, use, reuse, access and dissemination of information. However, he also faces obstacles such as Copyright (Law 9610/98 in Brazil). An alternative is Creative Commons which not only allows the elaboration, use and dissemination of information under legal conditions but also function as a facilitator for the development of informational commons. This paper deals with this scenario.

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The roots' powder of timbo species collected in different regions of Amazonia that were tested in larvae groupings, didn't produce differential significative effects in two strains of Musca domestica. The two species with the greater number of plants used in the trial were Derris urucu and Derris nicou; the individuals from the species came from regions considered as "forestal refugies" during the Amazonian pleistocene. Among each species the plants varied since that inefficient to control, until plants lethals to the fies. This differential capacity for larvae control among plants of the same species, originated from different regions, suggests that both species had their populations isolated, during the quaternary epoch. In regions or "forestal refugies", where both species were represented, D. urucu was superior to D. nicou in the capacity to control larvae. While among plants from F region (Peruvian-East refuge) of the State of Acre, the two species had convergence in the values of damage to larvae groupings. Among the another species, Derris sp. (yellow timbo or watermelon timbo) didn't show differences in larvae control between samples from the two regions; while the species that was introduced in the Amazonia Denis elleptica showed damage in the larvae groupings similar to the most effective plants of D. nicou and D. urucu.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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; High-resolution grain size analyses of three AMS (14)C-dated cores from the Southeastern Brazilian shelf provide a detailed record of mid- to late-Holocene environmental changes in the Southwestern Atlantic Margin. The cores exhibit millennial variability that we associate with the previously described southward shift of the Inter Tropical Convergence Zone (ITCZ) average latitudinal position over the South American continent during the Holocene climatic maximum. This generated changes in the wind-driven current system of the SW Atlantic margin and modified the grain size characteristics of the sediments deposited there. Centennial variations in the grain size are associated with a previously described late-Holocene enhancement of the El Nino-Southern Oscillation (ENSO) amplitude, which led to stronger NNE trade winds off eastern Brazil, favouring SW transport of sediments from the Paraiba do Sul River. This is recorded in a core from off Cabo Frio as a coarsening trend from 3000 cal. BP onwards. The ENSO enhancement also caused changes in precipitation and wind pattern in southern Brazil, allowing high discharge events and northward extensions of the low-saline water plume from Rio de la Plata. We propose that this resulted in a net increase in northward alongshore transport of fine sediments, seen as a prominent fine-shift at 2000 cal. BP in a core from similar to 24 degrees S on the Brazilian shelf. Wavelet-and spectral analysis of the sortable silt records show a significant similar to 1000-yr periodicity, which we attribute to solar forcing. If correct, this is one of the first indications of solar forcing of this timescale on the Southwestern Atlantic margin.