About Fishes' Tails
نویسندگان
چکیده
منابع مشابه
Trouble in the Tails ? What We Know about Earnings
Earnings nonresponse in household surveys is widespread, yet there is limited evidence on whether and how nonresponse bias affects measured earnings. This paper examines the patterns and consequences of nonresponse using internal Current Population Survey individual records linked to administrative Social Security Administrative data on earnings for calendar years 2005-2010. Our findings confir...
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The kaleidoscopic structures in the electron micrographs above are the bundles of microtubules (axonemes) found in moth and fly sperm tail flagella, shown in cross-section. The axonemes above show the pattern typical of cilia and flagella in insects and other arthropods: nine doublet microtubules surround a central pair of singlet microtubules, and each doublet is associated with a singlet 'acc...
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This reprint is provided for personal and noncommercial use. For any other use, please send a request Brian Hayes by electronic mail to [email protected].
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T N-methyl-D-aspartate (NMDA)type glutamate receptor is one of three major classes of receptors for glutamate, the principle excitatory neurotransmitter in the central nervous system. It plays a key role in learning and in the formation of memories by acting as a ‘‘coincidence detector’’ that initiates changes in synaptic strength that lead to the formation of new neural networks (1). It is als...
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The diagnosis of curable, secondary causes of hypertension is a satisfying but challenging aspect, for both patient and doctor, of the clinical management of hypertension. They are probably under-recognized, and the enthusiasm to look for causes is blunted by low pickup rates in unselected patients. Young age encourages a search more because the alternative is many decades of drug treatment tha...
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ژورنال
عنوان ژورنال: Nature
سال: 1878
ISSN: 0028-0836,1476-4687
DOI: 10.1038/017286c0