THE NERVE GROWTH-FACTOR 35 YEARS LATER
THE NERVE GROWTH-FACTOR 35 YEARS LATER
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DOI：
10.1126/science.3306916
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发表时间：
1987-09-04
期刊：
影响因子：
56.9
通讯作者：
LEVIMONTALCINI, R
中科院分区：
文献类型：
--
作者：
LEVIMONTALCINI, R
胚胎发生在某种程度上是一个模型系统。它总是以其解剖学描述的正确性，甚至是精确性而著称。胚胎学的一位大师所做的实验，可以成为一场关于科学方法的演讲的主题。但有些事情是错的，或者已经错了。没有一种发展理论，在这种意义上，孟德尔-伊姆是一种解释育种实验结果的理论。因此，胚胎学研究的进展和及时性意义不大。在胚胎学会议上发表的许多论文中，无论它们本身多么好，人们也常常感到它们在5年前就已经发表了，而没有让任何人变得更聪明，或者推迟了5年，而没有让任何人意识到巨大的损失。P. MEDAWAR
Embryogenesis is in some way a model system. It has always been distinguished bythe aeactitude, evn punctio, of its anatomical descriptions. An experiment by one of the great mastetrs ofembnyology could be made the tect ofa discourse on saentific method. But something is wrong, or has been wrong. There is no theory ofdeelopment in the sense in whichMendel-im is a theory thataccounts for the results ofbreeding experi-ments. There has therefore been littk sense ofprogresswn or timeliness about embryological research. Of many papm delivered at embryologica meetings, howeerf good they may be in themselves, one too oftenfeels that they mtnqhthave been delivered 5 years beforehandwithout making anyone much the wiser, or deferredfor 5 yeans without making anyone conscious ofagreat loss.-P. MEDAWAR