大学文系学部(特に経営学部)が求める数学教育
Published in 数学教育学会誌. 臨時増刊, 数学教育学会発表論文集 • Sep 25, 2003
Authors:
智子 二宮
Abstract
A strain of Bacillus thuringiensis subsp. israelensis was found to be larvicidal to horn flies, Haematobia irritans (L. [Diptera:Muscidae]). The toxic activity was particulate, appeared during sporulation, and could be prevented by the addition of streptomycin before sporulation. Density gradient ce...
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