منابع مشابه
Pit-koon Teo Data Resources
A 3-level schema architecture is proposed to address some inadequacies in recent object-oriented data models. The conceptual schema is based on a normal form object-oriented entityrelationship IOOER) diagram. A set of mapping rules is defined that allows 00 externalschemas, based on the 02 data model, to be generated from the conceptual schema. Similar mapping rules can be defined to generate e...
متن کاملNorman Geschwind
Norman Geschwind (1926–1984) was born in New York City on 8 January, 1926, where his parents, Hannah and Morris, had arrived from Polish Galicia 20 years before [4]. When Norman was four, his father died of pneumonia. Despite difficulties, Hannah sent Norman and his brother Irving to the Hebrew Institute of Borough Park, where he never mastered Hebrew [2]. His later years at the Boy’s High Scho...
متن کاملNorman-growth Repression
LITERATU-RE CITED 1. BARTON, L. V. and MACNAB, J. Effects of antibiotics on plant growth. Contrib. Boyce Thompson Inst. 17: 419-434. 1954. 2. NORMAN, A. G. The effect of polymyxin on plant roots. Arch. Biochem. Biophys. 58: 461-477. 1955. 3. NORMAN, A. G. Inhibition of root growth by azaserine. Science 121: 213-214. 1955. 4. NORMAN, A. G. Terramycin and plant growth. Agron. Jour. 47: 585-587. 1...
متن کاملNorman Pace
British species; the speckled wood (Pararge aegeria) and the gatekeeper or hedge brown (Pyronia tithonus). The researchers have looked at the patterns of genetic variation in these two species, both of which have been expanding their British distributions over the past 60 years. Both species have broadly similar dispersal ability, the researchers note, but differ in their habitat requirements. ...
متن کاملQnAs with Sean B. Carroll.
D evelopmental biologist Sean B. Carroll, a professor of molecular biology and genetics and a Howard Hughes Medical Institute investigator at the University of Wisconsin-Madison, studies how animal diversity is generated. Carroll, who serves on the PNAS Editorial Board, counts among today’s prominent researchers in a subspecialty of developmental biology dubbed “evo-devo.” He is the author of a...
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ژورنال
عنوان ژورنال: Physics Today
سال: 1998
ISSN: 0031-9228,1945-0699
DOI: 10.1063/1.882311