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| Registros recuperados: 10 | |
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| Ouma, Emily Awuor; Jagwe, John. |
| Smallholder farmers in developing countries need to improve their position in food value chains in order to improve their margins and as a strategy for coping with agricultural food price volatility through innovations within the chains. Value chain mappings and gross margin analysis were employed to assess constraints and opportunities for existing value chains for bananas in Central Africa using market survey data. The results showed weak linkages within the banana value chains with poor integration of value chain actors and minimal involvement with regional markets and high-value domestic chains such as supermarkets. Value addition in terms of agroprocessing was carried out at small scale levels using rudimentary techniques limiting the final product to... |
| Tipo: Journal Article |
Palavras-chave: Banana value chains; Smallholder farmers; Central Africa; Collective action; Crop Production/Industries. |
| Ano: 2010 |
URL: http://purl.umn.edu/96169 |
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| Mintsa Nguema, Rodrigue; Mavoungou, Jacques F.; Ngou-milama, Krystina Mengue Me; Mamfoumbi, Modeste Mabicka; Koumba, Aubin A.; Lamine, Mariama Sani; Diarra, Abdoulaye; Asseko, Ghislaine Nkone; Mourou, Jean R.; Akotet, Marielle K. Bouyou; Mone, Helene; Mouahid, Gabriel; Atsame, Julienne. |
| In order to follow the Preventive Chemotherapy (PC) for the transmission control as recommended by WHO, Gabon initiated in 2014 the mapping of Schistosomiasis and Soil Transmitted Helminthiasis (STH). Here, we report the results of the Northern and Eastern health regions, representing a third of the land area and 12% of its total population. All nine departments of the two regions were surveyed and from each, five schools were examined with 50 schoolchildren per school. The parasitological examinations were realized using the filtration method for urine and the Kato-Katz technique for stool samples. Overall 2245 schoolchildren (1116 girls and 1129 boys), mean aged 11.28 +/- 0.04 years, were examined. Combined schistosomiasis and STH affected 1270 (56.6%)... |
| Tipo: Text |
Palavras-chave: Schistosomiasis; Soil-transmitted-helminthiasis; Mapping; Preventive chemotherapy; Transmission control; Gabon; Central Africa. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00660/77212/78691.pdf |
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| Dalibard, Mathieu; Popescu, Speranta-maria; Maley, Jean; Baudin, Francois; Melinte-dobrinescu, Mihaela-carmen; Pittet, Bernard; Marsset, Tania; Dennielou, Bernard; Droz, Laurence; Suc, Jean-pierre. |
| The essential characteristics of the vegetation dynamics of tropical Africa remain only partially known. This study assesses the succession of vegetation-types over Central Africa during the last two glacial/interglacial cycles. Analysis of core KZai 02, which contains pollen from the Zaire River watershed (latitudes 9°N-13°S), allows the investigation of long-term patterns of plant ecosystem development and their climatic causes. Core KZai 02 (18.20 m long) was recovered from 6°24.20′S/9°54.10′E in the uppermost axial edifice of the Zaire deep sea fan. The chronology of this sedimentary archive was established using nannofossils and correlations of pollen and total organic carbon signals with the nearby core GeoB1008. The pollen record indicates that: (i)... |
| Tipo: Text |
Palavras-chave: Central Africa; Climate; Environmental parameters; Late Pleistocene; Pollen; Vegetation dynamics. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00199/31031/29436.pdf |
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| Damen, T.H.J.; Burg, W.J. van der; Wiland-Szymańska, J.; Sosef, M.S.M.. |
| In preparing the treatment of Dracaena for Flore du Gabon and Flore d’Afrique centrale, a relatively high number of taxonomic and nomenclatural novelties were discovered; these are presented here. Within Dracaena five species and one forma are described as new, D. bushii, D. haemanthoides, D. marina, D. wakaensis, D. waltersiae and D. laxissima forma aureilicia. Each new species is provided with a full description and taxonomic notes. Apart from that, five species are reinstated, D. braunii, D. nitens, D. perrottetii, D. tholloniana and D. usambarensis. A further 23 names are treated here as a synonym for the first time: D. bequaertii, D. buettneri, D. cuspidibracteata, D. densifolia, D. gabonica, D. gazensis, D. ledermannii, D. letestui, D. litoralis, D.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Africa; Central Africa; Dracaena; Gabon; Lucky Bamboo; New species; Taxonomy. |
| Ano: 2018 |
URL: http://www.repository.naturalis.nl/record/650130 |
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| Registros recuperados: 10 | |
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