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Literatura académica sobre el tema "African Continent for fresh water collection"

Autor: Grafiati

Publicado: 26 de julio de 2024

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Artículos de revistas sobre el tema "African Continent for fresh water collection"

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De Kock, K. N. "Distribution and habitats of Ceratophallus natalensis (Mollusca: Planorbidae) in South Africa." Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie 26, no. 2 (2007): 109–19. http://dx.doi.org/10.4102/satnt.v26i2.128.

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Species of the genus Ceratophallus are known only from some islands in the western Indian Ocean and Africa, where they occur in Eritrea and the area extending southwards and westwards into the Western Cape of South Africa. The most recent classification recognises nine species of this genus of which only two, namely Ceratophallus natalensis (Krauss) and Ceratophallus gibbonsi (Nelson) occur in South Africa. Although partially sympatric, C. gibbonsi is largely associated with a tropical climate and perennial water-bodies while C. natalensis is fairly common in cooler areas and are often found i

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2

Descroix, Luc, Yancouba Sané, Mamadou Thior, et al. "Inverse Estuaries in West Africa: Evidence of the Rainfall Recovery?" Water 12, no. 3 (2020): 647. http://dx.doi.org/10.3390/w12030647.

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In West Africa, as in many other estuaries, enormous volumes of marine water are entering the continent. Fresh water discharge is very low, and it is commonly strongly linked to rainfall level. Some of these estuaries are inverse estuaries. During the Great Sahelian Drought (1968–1993), their hyperhaline feature was exacerbated. This paper aims to describe the evolution of the two main West African inverse estuaries, those of the Saloum River and the Casamance River, since the end of the drought. Water salinity measurements were carried out over three to five years according to the sites in or

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3

Lane, Jon. "Perspective: Positive experiences from Africa in water, sanitation and hygiene." Water Policy 6, no. 2 (2004): 153–58. http://dx.doi.org/10.2166/wp.2004.0010.

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Nowhere in the world is poverty more visible, more destructive and more pervasive than in Africa. Too often, Africa is associated with stories of failure and pessimism, of wars and famines, floods and unrest. Africa appears to be slipping back on many development indicators, even as other parts of the world move ahead. In 2003, however, there are prospects of achieving progress in water, sanitation and hygiene in Africa. Across the continent, there is a strong sense of the need for peace, democracy and co-operation. Through the Highly Indebted Poor Countries initiative, industrialised countrie

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4

Botai, Joel O., Christina M. Botai, Katlego P. Ncongwane, et al. "A Review of the Water–Energy–Food Nexus Research in Africa." Sustainability 13, no. 4 (2021): 1762. http://dx.doi.org/10.3390/su13041762.

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Notwithstanding the dispersed nature of the water, energy and food (WEF) nexus scholarship in the African continent, its strategic importance to the African agenda has gained widespread attention in research and planning circles. In this regard, the bibliometric science mapping and content analysis of the WEF nexus scientific publication trends, the conceptual, intellectual and social structures, as well as the inherent paradigmatic shifts in the WEF nexus body of knowledge in the African continent have been undertaken, using the nexus body of literature accessed from the Web of Science and Sc

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5

Crous, P. W., A. B. Van Jaarsveld, L. A. Castlebury, L. M. Carris, R. D. Frederick, and Z. A. Pretorius. "Karnal Bunt of Wheat Newly Reported from the African Continent." Plant Disease 85, no. 5 (2001): 561. http://dx.doi.org/10.1094/pdis.2001.85.5.561b.

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In December 2000 seed harvested from wheat (Triticum aestivum L.) cultivars SST 876 and SST 825 produced under sprinkler irrigation near Douglas, Northern Cape Province, South Africa, contained a substantial amount of partially bunted kernels. Kernel embryos contained black masses of teliospores, and in many instances the endosperm was partially degraded. Teliospores were brown to dark brown, densely echinulate, 25 to 45 μm in diameter with a short mycelial fragment on some of the spores. Hyaline, smooth-walled sterile cells were also present. Teliospores were soaked in sterile distilled water

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6

Nurudeen, Sikiru Lanre, and Abdulazeez Alao Adekola. "Poverty Reduction Strategies: An Assessment of Development Initiatives in Africa." Lapai Journal of Economics 7, no. 1 (2023): 116–31. http://dx.doi.org/10.4314/lje.v7i1.8.

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The objective of virtually all development initiatives in Africa is poverty reduction. The crippling challenge of poverty facing most African states is, by no means, a fresh one. However, the problem has assumed a disturbing dimension at the turn of the 21st Century, if we compare African states with emerging economies in the global south. The paper adopts functionalism as a theoretical framework due to the fact that African states have embraced the idea of integration, with African Union (AU) being a potential instrument of realising their d `evelopment aspirations. Relying on secondary sourc

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7

van Jaarsveld, A. S., R. Biggs, R. J. Scholes, et al. "Measuring conditions and trends in ecosystem services at multiple scales: the Southern African Millennium Ecosystem Assessment (SA f MA) experience." Philosophical Transactions of the Royal Society B: Biological Sciences 360, no. 1454 (2005): 425–41. http://dx.doi.org/10.1098/rstb.2004.1594.

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The Southern African Millennium Ecosystem Assessment (SA f MA) evaluated the relationships between ecosystem services and human well-being at multiple scales, ranging from local through to sub-continental. Trends in ecosystem services (fresh water, food, fuel-wood, cultural and biodiversity) over the period 1990–2000 were mixed across scales. Freshwater resources appear strained across the continent with large numbers of people not securing adequate supplies, especially of good quality water. This translates to high infant mortality patterns across the region. In some areas, the use of water r

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8

Beklová, Miroslava, Olga Čelechovská, Radka Dobšíková, et al. "Ecotoxicological Assessment of Sediment Leachates of Small Watercourses in the Brno City Suburban Area (South Moravia, Czech Republic)." Acta Veterinaria Brno 79, no. 1 (2010): 157–64. http://dx.doi.org/10.2754/avb201079010157.

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Sediments of two small watercourses Leskava and Troubsky Brook in the Brno city suburban area were examined for their ecotoxicity. Using a standard procedure, extracts of the sediments were prepared for diagnostic tests. These extracts were tested for acute toxicity to fresh-water organisms. The ecotoxicological tests were performed on the fresh-water algaPseudokirchneriella subcapitata, the vascular water plantLemna minor, on a representative of invertebrates – the water fleaDaphnia magnaand on theXenopus laevisfrog embryo and luminiscentVibrio fischeribacteria. Possible toxic effects were ev

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9

Arrey, William Hermann. "The Impact of the Theory of Liberalism on the United Nations’ and African Union’s Approach to Global Peace and Security." African Journal of Law, Political Research and Administration 6, no. 1 (2023): 62–76. http://dx.doi.org/10.52589/ajlpra-gwphexew.

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This article presents a critical analysis of the impact (influence) of the theory of liberalism on the United Nations’ (UN) and Africa Union’s (AU) approach to global peace and security. There are various and sometimes conflicting theories of international relations relating to how world politics functions, including international and regional peace and security. Which theory of international relations and peace would explain the United Nations' role in promoting worldwide peace and security, as well as the African Union's role in promoting regional peace and security within the African contin

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10

Akudugu, Mamudu Abunga, Katherine Kaunza-Nu-Dem Millar, and Margaret Atosina Akuriba. "The Livelihoods Impacts of Irrigation in Western Africa: The Ghana Experience." Sustainability 13, no. 10 (2021): 5677. http://dx.doi.org/10.3390/su13105677.

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Although agriculture remains the mainstay of the African economy, it is currently going through stress because of a multitude of factors including climate change. Thus, many countries in their efforts to transform their agricultural sectors are employing climate-smart initiatives including the provision of water harvesting technologies for irrigated crop production during the dry season. This paper examines the role of irrigation in the drive towards a transformation of smallholder agriculture in Africa. Focus group discussions, key informant interviews and individual questionnaires were emplo

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Capítulos de libros sobre el tema "African Continent for fresh water collection"

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Chafer, Tony, and Alexander Keese. "Introduction." In Francophone Africa at fifty. Manchester University Press, 2013. http://dx.doi.org/10.7228/manchester/9780719089305.003.0001.

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The introduction describes how this collection brings together the scholarship of leading international specialists on African and French imperial history, political science and related fields to offer fresh perspectives on this process. It is the first systematic attempt at characterizing networks and links that, for the populations of large parts of the African continent, have lost none of their importance.

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Actas de conferencias sobre el tema "African Continent for fresh water collection"

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Cap, Constant. "The Importance of Participation and Inclusion in African Urbanization. A focused look at Transport and Housing Projects." In 55th ISOCARP World Planning Congress, Beyond Metropolis, Jakarta-Bogor, Indonesia. ISOCARP, 2019. http://dx.doi.org/10.47472/dmcz6151.

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According to the World Bank (2015) Africa’s urbanization rate has surpassed other parts of the world. It is believed that by 2030, over 50% of Africans will reside in Urban Centres. Kenya is among the African counties that has experienced a tremendous increase in her urban population. This is most visible in the capital, the primate city of Nairobi. The growth has led to increased pressure on basic needs like housing, transport, water, education and security. Coupled with unequal economic development and social benefits, the result has been the tremendous expansion of informal sectors across f

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