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附子又名药羊蒿、百步草、鹅儿花等,俗称乌药,为毛莨科植物乌头的块根,多年生草本。附子在中国已有2 000多年药用历史,早在东汉《神农本草经》中已有记载,被列为治疗疾病的重要药物。 相似文献
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研究了转青卵消毒方法对蚕卵孵化率、蚁蚕疏毛率、小蚕生长及对饲料霉变的影响⒚结果表明以4% 甲醛浸渍 15 m in,然后以95% 乙醇处理 4 m in 为好⒚收蚁用饲料以平板状为佳,疏毛整齐遗失蚕少,二龄以后则应更换片状饲料⒚ 相似文献
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The mean radium-226 content of samples of vertebrae from New York City and San Francisco is 0.032 and 0.026 picocuries of radium-226 per gram of calcium, respectively. The ratio of these two mean values is associated with a similar ratio of radium-226 to calcium found in the diet at the two locations. A plot of the radium-226 content of bone as a function of age indicates that there is no marked difference in levels of bone radium with age. 相似文献
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Hartman PE 《Science (New York, N.Y.)》1978,202(4365):260
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Paleolithic diet, evolution, and carcinogens 总被引:2,自引:0,他引:2
D L Davis 《Science (New York, N.Y.)》1987,238(4834):1633-1634
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Artificial diet for cecropia and other saturniid silkworms 总被引:3,自引:0,他引:3
L M Riddiford 《Science (New York, N.Y.)》1968,160(835):1461-1462
A wheat-germ diet containing no leaf material has been perfected for the rearing of Hyalophora cecropia, Hyalophora gloveri, and Samia cynthia. 相似文献
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Cell Division and Cancer 总被引:1,自引:0,他引:1
Gongdon CC 《Science (New York, N.Y.)》1963,142(3589):252-261
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Esteller M Fraga MF Paz MF Campo E Colomer D Novo FJ Calasanz MJ Galm O Guo M Benitez J Herman JG 《Science (New York, N.Y.)》2002,297(5588):1807-8; discussion 1807-8
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在猪日粮对比试验资料中,常常包括试验初始重等影响试验结果但不是试验结果的因素。统计分析时必须考虑这类连续性变量,以降低残差方差,提高检验功效。这类资料常用的分析方法为协方差分析法。首先介绍了协方差分析的统计学假设及其检验方法,然后给出了协方差分析法。本文的所有分析方法都利用SAS实现,详细介绍了如何阅读SAS程序结果。 相似文献