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Dr.VaLidity of Family History Data on Primary Adult-Onset DystoniaMartino D./Aniello M.S./Masi G. et al. [Dr. G. Defazio,Dept. of Neurol. and Psychiat. Sci., University of Bari,Piazza Giulio Cesare 11, 1-70124 Bari, Italy]Background: To our knowledge, no study has assessed thevalidity of family hist ory data provided 相似文献
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Rejoinder to the comment by Andrew Dorward and Ephraim Chirwa on Jayne,T. S., D. Mather,N. Mason,and J. Ricker‐Gilbert. 2013. How do fertilizer subsidy program affect total fertilizer use in sub‐Saharan Africa? Crowding out,diversion, and benefit/cost assessments. Agricultural Economics, 44(6), 687–703
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T. S. Jayne David Mather Nicole M. Mason Jacob Ricker‐Gilbert Eric W. Crawford 《Agricultural Economics》2015,46(6):745-755
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人参Panax ginseng C.A.Meyer是我国传统补益药中最具有代表性的药物之一《神农本草经》载:“人参主补五脏,安精神、定魂魄、止惊悸、除邪气,明目、开心、益智、久服轻身延年。”临床应用至少已有两千多年的历史了。近年来国内外不少学者对人参进行了大量的生药、植化、生化、实验药理与临床等 相似文献
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This article examines the dynamic effects of changes in bilateral exchange rates on changes in bilateral trade of bulk, intermediate, and consumer‐oriented agricultural products between the United States and its 10 major trading partners. We find that, for consumer‐oriented products, U.S. exports are highly sensitive to bilateral exchange rates in both the short and long run, while U.S. imports are mostly responsive only in the short run. For bulk products, on the other hand, U.S. exports and imports are relatively insensitive to exchange rate changes in both the short and long run. For intermediate products, exports and imports are responsive to exchange rate changes in the short run, but not in the long run. It is also found that income of the United States and its trading partners has a significant effect on U.S. exports and imports of the three types of agricultural products in both the short and long run. 相似文献
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