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| Registros recuperados: 333 | |
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| Berem, Risper M.; Obare, Gideon A.; Owuor, George. |
| Using survey data from 110 randomly selected honey producers from two divisions in Baringo this paper analyzes the constraints and drivers of value addition in honey, an economic activity with a potential to improve household livelihoods but whose development has remained rudimentary. Baringo District undergoes frequent and prolonged drought that impacts on household livelihood assets. The livelihoods have traditionally been agro-based but due to variations in climatic conditions, crop production has been very low. Livestock production has also been adversely affected by these trends, leaving honey production as a viable alternative for smallholder farmers since it is less dependent on, or affected by climatic variations and is not resource intensive. This... |
| Tipo: Journal Article |
Palavras-chave: Value addition; Poverty reduction; Drought; ASAL; Africa; Livestock Production/Industries. |
| Ano: 2010 |
URL: http://purl.umn.edu/96163 |
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| Neven, David; Reardon, Thomas. |
| In Kenya, supermarkets have grown from a tiny n iche at the start of the 1990s to 20% of the urban food retail sector in 2003. Furthermore, Kenyan supermarket chains are increasingly sourcing from global markets and have started to expand their store network in the wider East Africa region. Within this context, this study focused on the farm-level response to the rise of supermarkets and the new challenges and opportun ities they create. The research found that the rise of supermarkets in Kenya has given rise to a new group of medium-sized farms managed by well-educated farmers. Focusing on kale, the research shows that nearly all supermarket-channel farmers have the capacity to supply larger volumes year round and have transportation vehicles, an... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Supermarkets; Development; Hor ticulture; Farm technology; Africa; Marketing. |
| Ano: 2006 |
URL: http://purl.umn.edu/25759 |
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| Huygh, W.; Schouppe, D.; Larridon, I.; Simpson, D.A.; Goetghebeur, P.. |
| Kyllinga cataphyllata, a new species of Cyperaceae from the highlands of Western and Central Africa, is described and illustrated. This new species is easy recognized by the ascending rhizome densely covered by large cataphylls. The head-like inflorescence consisting of a single spike with spikelets made up of two to three glumes and only one flower, and the glumes characterized by a spinulose greenish keel. It is closely related to K. brevifolia, but differs in having conspicuous cataphylls, glumes with a strongly toothed keel and an asymmetrical pedicel to the nutlet. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Africa; Cyperaceae; Highland flora; Kyllinga. |
| Ano: 2010 |
URL: http://www.repository.naturalis.nl/record/525316 |
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| Tschirley, David L.; Staatz, John M.; Donovan, Cynthia. |
| When an emergency occurs, agencies must make quick decisions on how to help people facing severe food insecurity. This paper addresses the challenges of designing appropriate responses that are linked to identified needs of affected households and individuals. The primary goal of any response is to save lives now and protect the food security of households and individuals now and in the future. However, instrumental goals and the specific means of achieving them are varied, and must be responsive to the setting in which the emergency occurs. The paper conceives the costs and benefits of a response as the product of how efficiently a resource is delivered (resource transfer efficiency) and the effectiveness of the resource and its mode of delivery in... |
| Tipo: Report |
Palavras-chave: Africa; Food security; Food policy; Food aid; Emergency response; Food Security and Poverty; Q18. |
| Ano: 2007 |
URL: http://purl.umn.edu/54561 |
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| Plasman, M.; Tiberi, C.; Ebinger, C.; Gautier, S; Albaric, J.; Peyrat, S.; Deverchere, Jacques; Le Gall, B.; Tarits, Pascal; Roecker, S.; Wambura, F.; Muzuka, A.; Mulibo, G.; Mtelela, K.; Msabi, M.; Kianji, G.; Hautot, S.; Perrot, J.; Gama, R.. |
| Rifting in a cratonic lithosphere is strongly controlled by several interacting processes including crust/mantle rheology, magmatism, inherited structure and stress regime. In order to better understand how these physical parameters interact, a 2 yr long seismological experiment has been carried out in the North Tanzanian Divergence (NTD), at the southern tip of the eastern magmatic branch of the East African rift, where the southward-propagating continental rift is at its earliest stage. We analyse teleseismic data from 38 broad-band stations ca. 25 km spaced and present here results from their receiver function (RF) analysis. The crustal thickness and Vp/Vs ratio are retrieved over a ca. 200 x 200 km(2) area encompassing the South Kenya magmatic rift,... |
| Tipo: Text |
Palavras-chave: Time-series analysis; Continental tectonics: extensional; Africa; Crustal imaging. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00638/75026/75673.pdf |
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| Tiberi, C.; Gautier, S; Ebinger, C.; Roecker, S.; Plasman, M.; Albaric, J.; Deverchere, Jacques; Peyrat, S.; Perrot, Julie; Wambura, R. Ferdinand; Msabi, M.; Muzuka, A.; Mulibo, G.; Kianji, G.. |
| We present a joint analysis of newly acquired gravity and teleseismic data in the North Tanzanian Divergence, where the lithospheric break-up is at its earliest stage. The impact of a mantle upwelling in more mature branches of the East African Rift has been extensively studied at a lithospheric scale. However, few studies have been completed that relate the deep-seated mantle anomaly detected in broad regional seismic tomography with the surface deformation observed in the thick Archaean Pan-African suture zone located in North Tanzania. Our joint inversion closes the gap between local and regional geophysical studies, providing velocity and density structures from the surface down to ca. 250 km depth with new details. Our results support the idea of a... |
| Tipo: Text |
Palavras-chave: Gravity anomalies and Earth structure; Africa; Joint inversion; Seismic tomography; Intra-plate processes. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00637/74944/76038.pdf |
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| Tschirley, David L.; del Castillo, Anne Marie. |
| This report discusses the potential for procurement of food aid in local/regional markets to improve the effectiveness of response to food emergency victims. The paper examines the relevance of local/regional procurement (LRP) to donors and the rationale for using it, reviews LRP’s efficiency relative to in-kind food aid and to local prices in the markets in which it occurs (focusing on Africa), proposes a classification of risks involved in LRP, discusses a range of potential LRP modalities, and closes by proposing a framework of guiding principles, information systems, and operational procedures for responsible and effective LRP. |
| Tipo: Report |
Palavras-chave: Africa; Food security; Food policy; Food aid; Food Security and Poverty; Q18. |
| Ano: 2007 |
URL: http://purl.umn.edu/54562 |
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| Tschirley, David L.; del Castillo, Anne Marie. |
| This report discusses the potential for procurement of food aid in local/regional markets to improve the effectiveness of response to food emergency victims. The paper examines the relevance of local/regional procurement (LRP) to donors and the rationale for using it, reviews LRP’s efficiency relative to in-kind food aid and to local prices in the markets in which it occurs (focusing on Africa), proposes a classification of risks involved in LRP, discusses a range of potential LRP modalities, and closes by proposing a framework of guiding principles, information systems, and operational procedures for responsible and effective LRP. |
| Tipo: Report |
Palavras-chave: Food security; Policy; Zambia; Africa; Food aid; Crop Production/Industries; Q18. |
| Ano: 2007 |
URL: http://purl.umn.edu/54486 |
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| Haggblade, Steven; Tschirley, David L.. |
| By law, US food aid relies on commodity procurement in the US. A powerful political coalition of US farm groups, shippers and relief agencies vigorously supports these in-kind food aid donation. As an alternative, local procurement of food aid, in Africa, has attracted growing interest because of its potential to reduce landed costs and speed delivery times. For this reason, many food aid donors, other than the US, have switched to local and regional procurement of food aid commodities. This paper reviews experience with local and regional food aid procurement in Zambia. The study focuses primarily on experience of the World Food Programme (WFP), the agency with the most extensive experience conducting local and regional procurement in Africa. WFP’s... |
| Tipo: Report |
Palavras-chave: Food security; Policy; Zambia; Africa; Food aid; Crop Production/Industries; Q18. |
| Ano: 2007 |
URL: http://purl.umn.edu/54487 |
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| Zant, Wouter. |
| We investigate measurement of market integration of staple food markets in developing countries. The analysis takes the Parity Bound Model as starting point and modifies this model by parameterizing and estimating transaction costs. The specification of transaction costs takes account of transport costs, fixed source costs, fixed destination costs, ad valorem taxes & levies and seasonality an is implemented on the basis of a specific sub-sample of price differentials. Price differentials combined with predicted transaction costs enable the measurement of market integration for each location and each period. The proposed method is applied to the Malawi maize market with monthly data from June 1999 to October 2009 for 26 districts. This period covers two... |
| Tipo: Journal Article |
Palavras-chave: Food markets; Transaction costs; Trade; Market integration; Parity Bound Model; Malawi; Africa; Crop Production/Industries; Marketing; F14; Q13. |
| Ano: 2010 |
URL: http://purl.umn.edu/95777 |
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| Registros recuperados: 333 | |
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