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贵州省HIV-1毒株亚型分布研究 被引量:1
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作者 孙显光 雷世光 +1 位作者 邢辉 邵一鸣 《贵州医药》 CAS 2007年第7期582-584,共3页
目的揭示贵州省HIV-1亚型毒株分布特点。方法用套式PCR扩增HIV-1毒株外膜蛋白并基因测序分析。结果62例样本扩增测序成功52例,其中B亚型3例,B’亚型4例,C亚型2例,E亚型2例,BC重组亚型41例。结论贵州省HIV-1病毒以BC重组亚型流行为主,多... 目的揭示贵州省HIV-1亚型毒株分布特点。方法用套式PCR扩增HIV-1毒株外膜蛋白并基因测序分析。结果62例样本扩增测序成功52例,其中B亚型3例,B’亚型4例,C亚型2例,E亚型2例,BC重组亚型41例。结论贵州省HIV-1病毒以BC重组亚型流行为主,多亚型并存;提示亚型分布复杂,来源广泛,防治难度大。 展开更多
关键词 人类免疫缺陷病毒-1 亚型特点 基因测序
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Ex-ante Adoption Analysis for Improved Sorghum Varieties in the Lake Zone Tanzania
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作者 J. M. Mafuru D. W. Norman M. M. Langemeier 《Journal of Agricultural Science and Technology(B)》 2011年第5期663-668,共6页
The objective of this study was to determine the influence of production and consumption characteristics of improved sorghum varieties on farmers' adoption decisions. Thirty-four farmers and 231 consumers evaluated f... The objective of this study was to determine the influence of production and consumption characteristics of improved sorghum varieties on farmers' adoption decisions. Thirty-four farmers and 231 consumers evaluated five sorghum varieties to determine their preferences. The perceptions of the farmers and consumers were summarized and presented to 100 sorghum farmers to help them choose the best varieties, based on results obtained earlier. Ordered probit models were used to predict their adoption decisions. Results indicated that when adoption is predicted on production characteristics alone the adoption rate was lower than when prediction incorporated both production and consumption characteristics of the sorghum varieties. Therefore, when disseminating new technologies farmers need to be informed about the production as well as the consumption characteristics of the new technologies. The outcomes of this study imply that involving producers and consumers in the generation of new agricultural technologies would potentially increase their adoption rates when they are disseminated. Thus a subsector analytical approach is recommended. 展开更多
关键词 ADOPTION improved sorghum varieties market consumers subsector analysis Tanzania.
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