Resultados de búsqueda - "history"

Domestic forests: a new paradigm for integrating local communities’ forestry into tropical forest science por Michon, G., Foresta, H. de, Levang, P., Verdeaux, F.

“…Despite a long history of confrontation between forest agencies and forest people, “indigenous” or “local” practices are increasingly considered as a viable alternative of forest management. …”
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Nutrient constraints to tropical agroecosystem productivity in long-term degrading soils por Ngoze, S., Riha, S., Lehmann, Johannes, Kinyangi, James, Verchot, Louis V., Mbugua, D., Pell, A.

“…In the highlands of western Kenya, we investigated soil nitrogen (N) and phosphorus (P) constraints to maize productivity across a cultivation chronosequence in which land-use history ranged from recent conversion from primary forest to 100 years in continuous cropping. …”
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Flows under stress: Availability of plant genetic resources in times of climate and policy change por López Noriega, Isabel, Galluzzi, Gea, Halewood, Michael, Vernooy, Ronnie, Bertacchini, E., Gauchan D, Welch, Eric W.

“…Given their mandate, history and expertise, the centres of the Consultative Group on International Agricultural Research (CGIAR Centres) are expected to play an important role in developing novel agricultural research strategies required to respond to climate change challenges. …”
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Adaptation by agricultural communities to climate change through participatory and supply chain inclusive management por Shaw, Alison, Kristjanson, Patricia M.

“…Interface: Researchers and stakeholders such as farmers, extensionists, local governments, and ministers are brought together in workshops to discuss history, crop types and harvesting methods and climate change perceptions. …”
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Coffee Under Pressure por Shaw, Alison, Kristjanson, Patricia M.

“…Interface: Researchers and stakeholders such as farmers, extensionists, local governments, and ministers are brought together in workshops to discuss history, crop types and harvesting methods and climate change perceptions. …”
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The reports of questionnaire about the diagnosis and prevention of weak calf syndrome in calves por Ohtsuka, H., Makita, K.

“…Nutrition status at fetus stage, and history of colostrum feeding were second and third common answers. …”
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Emerging pests and diseases of Southeast Asian cassava: a comprehensive evaluation of geographic priorities, management options and research needs por Graziosi, Ignazio, Minato, Nami, Álvarez, Elizabeth, Ngo, Dung Tien, Trinh, Hoat Xuan, Aye, Tin Maung, Pardo, Juan Manuel, Wongtiem, Prapit, Wyckhuys, Kris A.G.

“…While SE Asian cassava has been virtually free of phytosanitary constraints for most of its history, a complex of invasive arthropod pests and plant diseases has recently come to affect local crops. …”
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Shallow wells, the untapped resource with a potential to improve agriculture and food security in southern Mali por Zemadim, Birhanu, Tabo, Ramadjita

“…The study found out that shallow wells were mainly utilized for household and livestock water consumption and not for agricultural water use. Well construction history followed the trend of the severe drought that hit the Sahel in the years of the 1970s and 1980s. …”
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Analyses of mitochondrial genes reveal two sympatric but genetically divergent lineages of Rhipicephalus appendiculatus in Kenya por Kanduma, Esther G., Mwacharo, Joram M., Githaka, Naftaly W., Kinyanjui, P.W., Njuguna, J., Kamau, L.M., Kariuki, E., Mwaura, S., Skilton, Robert A., Bishop, Richard P.

“…The two groups show no phylogeographic structure or correlation with the type of host species from which the ticks were collected, nor to the evolutionary and breeding history of the species. The two lineages may have a wide geographic distribution range in eastern and southern Africa. …”
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Link of a ubiquitous human coronavirus to dromedary camels por Corman, V.M., Eckerle, I., Memish, Z.A., Liljander, Anne M., Dijkman, R., Jonsdottir, H., Ngeiywa, K.J.Z.J., Kamau, E., Younan, M., Al Masri, M., Assiri, A., Gluecks, Ilona V., Musa, B.E., Meyer, B., Müller, M.A., Hilali, Mosaad, Bornstein, S., Wernery, U., Thiel, V., Jores, Joerg, Drexler, J.F., Drosten, C.

“…Studying these viruses’ evolutionary history could provide important insight into CoV emergence. …”
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Differential infection patterns and recent evolutionary origins of equine hepaciviruses in donkeys por Walter, S., Rasche, A., Moreira-Soto, A., Pfaender, S., Bletsa, M., Corman, V.M., Aguilar-Setien, A., García Lacy, F., Hans, A., Todt, D., Schuler, G., Shnaiderman-Torban, A., Steinman, A., Roncoroni, C., Venezian, V., Rusenova, N., Sandev, N., Rusenov, A., Zapryanova, D., García Bocanegra, I., Jores, Joerg, Carluccio, A., Veronesi, M.C., Cavalleri, J.M.V., Drosten, C., Lemey, P., Steinmann, E., Drexler, J.F.

“…To unravel the EqHV evolutionary history within equid sister species, we analyzed 829 donkeys and 53 mules sampled in nine European, Asian, African and American countries by molecular and serologic tools for EqHV infection. …”
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Socio-economic contribution of cassava varietal improvement to the small farmer communities in Asia por Kawano, Kazuo

“…It is fortunate that we have been able to work with the same basic strategy and the same fundamental objectives throughout the history of nearly a quarter century of our cassava varietal improvement program. …”
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Miscellaneous problems por Schwartz, Howard F.

“…Sometimes the symptoms produced by these factors are confused with those produced by insects, diseases, nematodes and nutritional disorders. A complete history of all factors relevant to bean production in a specific region is required to identify the causal agent correctly. …”
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Problemas miscelaneos por Schwartz, Howard F.

“…Sometimes the symptoms produced by these factors are confused with those produced by insects, diseases, nematodes and nutritional disorders. A complete history of all factors relevant to bean production in a specific region is required to identify the causal agent correctly. …”
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Additional problems por Schwartz, Howard F.

“…Sometimes the symptoms produced by these factors are confused with those produced by insects, diseases, nematodes, and nutritional disorders. A complete history of all factors relevant to bean production in a specific region is required to identify the causal agent correctly. …”
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Food and agricultural innovation pathways for prosperity por Tomich, Thomas P., Lidder, Preetmoninder, Coley, Mariah, Gollin, Douglas, Meinzen-Dick, Ruth S., Webb, Patrick, Carberry, Peter

“…The papers in this special issue are intended to yield insights to inform improvements in agricultural research that seeks to reduce poverty. History indicates that equity of distribution of gains matters hugely, and thus the questions of “who wins?” …”
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High prevalence of epilepsy in onchocerciasis endemic regions in the Democratic Republic of the Congo por Levick, B., Laudisoit, A., Tepage, F., Ensoy-Musoro, C., Mandro, M., Bonareri Osoro, C., Surkerbuyk, P., Kashama, J.M., Komba, M., Tagoto, A., Falay, D., Begon, M., Colebunders, R.

“…Of 12, 408 people examined in the different health areas 407 (3.3%) were found to have a history of epilepsy. A high prevalence of epilepsy was observed in health areas in the 3 provinces: 6.8–8.5% in Bas-Uele, 0.8–7.4% in Tshopo and 3.6–6.2% in Ituri. …”
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Mitochondrial phylogeography and population structure of the cattle tick Rhipicephalus appendiculatus in the African Great Lakes region por Amzati, Gaston S., Pelle, Roger, Muhigwa, J.B., Kanduma, Esther G., Djikeng, Appolinaire, Madder, M., Kirschvink, N., Marcotty, T.

“…In this study we investigated the genetic distribution of R. appendiculatus across agro-ecological zones (AEZs) in the African Great Lakes region to better understand the epidemiology of ECF and elucidate R. appendiculatus evolutionary history and biogeographical colonization in Africa.Sequencing was performed on two mitochondrial genes (cox1 and 12S rRNA) of 218 ticks collected from cattle across six AEZs along an altitudinal gradient in the Democratic Republic of Congo, Rwanda, Burundi and Tanzania. …”
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The feasibility of using low-density marker panels for genotype imputation and genomic prediction of crossbred dairy cattle of East Africa por Aliloo, H., Mrode, Raphael A., Okeyo Mwai, Ally, Ni, G., Goddard, M.E., Gibson, John P.

“…The efficacy of genotype imputation can largely be affected by the structure and history of the specific target population and it should be checked before incorporating imputation in routine genotyping practices. …”
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Bioversity International Annual Report 2007 por Bioversity International

“…Despite the difficulties, 2007 was as productive a year as any in Bioversity's history, as can be seen from the achievements and stories in this annual report. …”
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