997 resultados para Africa, Northern
Resumo:
State University Audit Report
Resumo:
The goal of this interdisciplinary study is to better understand the land use factors that increase vulnerability of mountain areas in northern Pakistan. The study will identify and analyse the damages and losses caused by the October 2005 earthquake in two areas of the same valley: one "low-risk" watershed with sound natural resources management, the other, "high-risk" in an ecologically degraded watershed. Secondly, the study will examine natural and man-made causes of secondary hazards in the study area, especially landslides; and third it will evaluate the cost of the earthquake damage in the study areas on the livelihoods of local communities and the sub-regional economy. There are few interdisciplinary studies to have correlated community land use practices, resources management, and disaster risk reduction in high-risk mountain areas. By better understanding these linkages, development- humanitarian- and donor agencies focused on disaster reduction can improve their risk reduction programs for mountainous regions.
Resumo:
State University Audit Report
Resumo:
Abundant veins filled by calcite, celestite and pyrite were found in the core of a 719 m deep borehole drilled in Oftringen near Olten, located in the north-western Molasse basin, close to the thrust of the Folded Jura. Host rocks are calcareous marl, argillaceous limestone and limestone of the Dogger and Malm. The delta O-18 values of vein calcite are lower than in host rock carbonate and, together with microthermometric data from fluid inclusions in vein calcite, indicate precipitation from a seawater-dominated fluid at average temperatures of 56-68A degrees C. Such temperatures were reached at the time of maximum burial of the sedimentary pile in the late Miocene. The depth profile of delta C-13 and Sr-87/Sr-86 values and Sr content of both whole-rock carbonate and vein calcite show marked trends towards negative delta C-13, high Sr-87/Sr-86, and low Sr content in the uppermost 50-150 m of the Jurassic profile (upper Oxfordian). The Sr-87/Sr-86 of vein minerals is generally higher than that of host rock carbonate, up to very high values corresponding to Burdigalian seawater (Upper Marine Molasse, Miocene), which represents the last marine incursion in the region. No evidence for internally derived radiogenic Sr (clay minerals) has been found and so an external source is required. S and O isotope composition of vein celestite and pyrite can be explained by bacterial reduction of Miocene seawater sulphate. The available data set suggests the vein mineralization precipitated from descending Burdigalian seawater and not from a fluid originating in the underlying Triassic evaporites.
Resumo:
Coffee and cocoa represent the main sources of income for small farmers in the Northern Amazon Region of Ecuador. The provinces of Orellana and Sucumbios, as border areas, have benefited from investments made by many public and private institutions. Many of the projects carried out in the area have been aimed at energising the production of coffee and cocoa, strengthening the producers’ associations and providing commercialisation infrastructure. Improving the quality of life of this population threatened by poverty and high migration flows mainly from Colombia is a significant challenge. This paper presents research highlighting the importance of associative commercialisation to raising income from coffee and cocoa. The research draws on primary information obtained during field work, and from official information from the Ministry of Agriculture. The study presents an overview of current organisational structures, initiatives of associative commercialisation, stockpiling of infrastructure and ownership regimes, as well as estimates for both ‘robusta’ coffee and national cocoa production and income. The analysis of the main constraints presents different alternatives for the implementation of public land policies. These policies are aimed at mitigating the problems associated with the organisational structure of the producers, with processes of commercialisation and with environmental aspects, among others.
Resumo:
The recent wave of upheavals and revolts in Northern Africa and the Middle East goes back to an old question often raised by theories of collective action: does repression act as a negative or positive incentive for further mobilization? Through a review of the vast literature devoted to this question, this article aims to go beyond theoretical and methodological dead-ends. The article moves on to non-Western settings in order to better understand, via a macro-sociological and dynamic approach, the causal effects between mobilizations and repression. It pleads for a meso- and micro-level approach to this issue: an approach that puts analytical emphasis both on protest organizations and on individual activists' careers.
Resumo:
State University Audit Report
Resumo:
We examine the relationship between structural social capital, resource assembly, and firm performance of entrepreneurs in Africa. We posit that social capital primarily composed of kinship or family ties helps the entrepreneur to raise resources, but it does so at a cost. Using data drawn from small firms in Kampala, Uganda, we explore how shared identity among the entrepreneur's social network moderates this relationship. A large network contributed a higher quantity of resources raised, but at a higher cost when shared identity was high. We discuss the implications of these findings for the role of family ties and social capital in resource assembly, with an emphasis on developing economies.
Resumo:
A complete life cycle model for northern corn rootworm, Diabrotica barberi Smith and Lawrence, is developed using a published single-season model of adult population dynamics and data from field experiments. Temperature-dependent development and age-dependent advancement determine adult population dynamics and oviposition, while a simple stochastic hatch and density-dependent larval survival model determine adult emergence. Dispersal is not modeled. To evaluate the long-run performance of the model, stochastically generated daily air and soil temperatures are used for 100-year simulations for a variety of corn planting and flowering dates in Ithaca, NY, and Brookings, SD. Once the model is corrected for a bias in oviposition, model predictions for both locations are consistent with anecdotal field data. Extinctions still occur, but these may be consistent with northern corn rootworm metapopulation dynamics.
Resumo:
The Lower Carboniferous Baralacha La basaltic dykes were emplaced along transtensional faults. The basalts exhibit tholeiitic and alkaline affinities. The tholeiites are TiO2-poor, moderately enriched in light rare earth (LREE), and display Nb and Ta negative and Th positive anomalies. The alkali basalts, compared to the tholeiites, have higher TiO2, rare earth and highly incompatible trace element contents and greater LREE enrichments. The Nd and Pb isotope compositions of the Baralacha La basalts suggest that they derive from the partial melting of an enriched OIB mantle source. characterized by a HIMU component, and contaminated by the lower continental crust. The Baralacha La dyke swarm represent the remnants of an early rifting event on the northern Indian passive margin.
Resumo:
In light of the existing theories about institutional change, this paper seeks to advance a common framework to understand the unfolding of decentralization and federalization in three countries: Brazil, Spain, and South Africa. Although in different continents, these three countries witnessed processes after their respective transitions to democracy that transferred administrative and fiscal authority to their regions (decentralization) and vertically distributed political and institutional capacity (federalization). This paper attempts to explain how institutional changes prompted a shift of power and authority towards regional governments by looking at internal sources of change within the intergovernmental arena in the three countries. This analysis is organized around two propositions: that once countries transit to democracy under all-encompassing constitutions there are high incentives for institutional change, and that under a bargained intergovernmental interaction among political actors subnational political elites are able to advance their interests incrementally. In short, through a common framework this paper will explain the evolving dynamics of intergovernmental dynamics in three countries.
Resumo:
State University Audit Report
Resumo:
Africana possui agora três estratégias regionais em várias fases de desenvolvimento: • Roteiro para a diminuição da mortalidade materno-infantil e dos recém-nascidos (2004) • Quadro da Sobrevivência Infantil (2005) • Plano de Acção de Maputo para a Saúde e Direitos Sexuais e Reprodutivos (2006) Cada uma destas políticas-quadro permite que os governos nacionais as adaptem e as implementem de acordo com as necessidades e características do seu país, com o apoio de parceiros e ao abrigo dos princípios da Declaração de Paris sobre a eficácia das ajudas - “Um só plano, um só mecanismo de coordenação, um só mecanismo de monitorização e de avaliação”. 35 países já iniciaram o processo que os levará a um Roteiro nacional, processo que arrancou com a “MNCH Task Force” em 2004. Estas políticas-quadro representam um grande avanço, mas constituem apenas um primeiro passo na via que levará a salvar vidas pelo aumento das áreas de cobertura das intervenções essenciais. O tempo escasseia - só nos restam nove anos antes da meta de 2015 para se alcançarem os Objectivos de Desenvolvimento do Milénio (ODM). A África pode e deve acelerar a marcha dos acontecimentos. A publicação Oportunidades para os recém-nascidos em Africa ajuda a colmatar o fosso existente entre as políticas e as acções no que se refere à Saúde Materna, Neonatal e Infantil (SMNI). O recém-nascido está no âmago dos cuidados continuados de saúde. Uma atenção sistemática prestada à melhoria e ao alargamento dos cuidados de saúde que lhe devem ser prestados no âmbito dos planos e dos programas nacionais será recompensada pela prestação de melhores serviços de SMNI. Esta publicação inclui os seguintes temas: A Secção I põe em destaque as mortes de recém-nascidos em África, o que é complementado pelos perfis apresentados na Secção V, que mostram qual é a situação fundamental da Saúde Materna, Neonatal e Infantil em 46 países de África, incluindo os progressos já alcançados no sentido do 4º objectivo dos ODM, a cobertura dos cuidados continuados de saúde prestados, a avaliação da equidade e a análise do financiamento destinado à saúde, fornecendo dados para a tomada de decisões na área das políticas e dos programas de SMNI.