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Science, New Series, Vol. 247, No. 4949, Mar. 23, 1990


Previous Issue: New Series, Vol. 247, No. 4948, Mar. 16, 1990
Next Issue: New Series, Vol. 247, No. 4950, Mar. 30, 1990


Front Matter (40 pp.)
Two Plus Two Equals Five, p. 1381
Daniel E. Koshland, Jr.


Letters
Grant Financing: PI Salaries, p. 1385
Robert M. Rosenzweig
Carrel's Cultures, pp. 1385-1386
Jan A. Witkowski
Asteroid Paradox, pp. 1386-1387
George W. Wetherill
The Antibiotic Record, pp. 1387-1388
H. T. Swan
A Broken System?, p. 1388
Christopher S. Foote
Conservation of Rare Plants, p. 1388
Robert W. Kasten, Jr.


News and Comment
Head Start Enters Adulthood, pp. 1400-1402
Constance Holden
DOE's Born-Again Solar Energy Plan, pp. 1403-1404
Mark Crawford
Who Should Study Radiation Effects?, p. 1404
Eliot Marshall
Stanford Psychiatry Deal Falls Through, p. 1405
Barbara J. Culliton
Trials and Tribulations of AIDS Drug Testing, p. 1406
Joseph Palca


Research News
Paleontology by Bulldozer, pp. 1407-1409
Ann Gibbons
Physicists Tackle Theory, Tubes, and Temperature, pp. 1410-1412
Robert Pool
Fiber Fracas at FASEB, p. 1412
Anne Moffat
"Rocking" on the Banks of the Columbia River, p. 1413
Anne Moffat


Briefings
Outside SSC Funding is Limited, p. 1414
Constance Holden
Say What?, p. 1414
Constance Holden
China Scholar Drops Stanford Suit, p. 1414
Constance Holden
Slick Soviet Ads., p. 1414
Constance Holden
Brits Cool to Physics Ad Blitz, p. 1414
Constance Holden
New Grants from Rockefeller, p. 1415
Constance Holden
England Versus the World's Worms, p. 1415
Constance Holden
Protecting Software, p. 1415
Constance Holden
Billions Needed for Child Care, p. 1415
Constance Holden
A Big Bird in the Sky for Scientists?, p. 1415
Constance Holden


Observational Constraints on the Global Atmospheric CO2 Budget, pp. 1431-1438
Pieter P. Tans; Inez Y. Fung; Taro Takahashi

Sonochemistry, pp. 1439-1445
Kenneth S. Suslick


Research Article
Neurotrophin-3: A Neurotrophic Factor Related to NGF and BDNF, pp. 1446-1451
Peter C. Maisonpierre; Leonardo Belluscio; Stephen Squinto; Nancy Y. Ip; Mark E. Furth; Ronald M. Lindsay; George D. Yancopoulos


Reports
Tumor Cells Exhibit Deregulation of the Cell Cycle Histone Gene Promoter Factor HiNF-D, pp. 1454-1457
Joost Holthuis; Thomas A. Owen; André J. van Wijnen; Kenneth L. Wright; Anna Ramsey-Ewing; Mary Beth Kennedy; Ruth Carter; Stephen C. Cosenza; Kenneth J. Soprano; Jane B. Lian; Janet L. Stein; Gary S. Stein
Tumor Resistance to Alkylating Agents Conferred by Mechanisms Operative Only in Vivo, pp. 1457-1461
Beverly A. Teicher; Terence S. Herman; Sylvia A. Holden; Yenyun Wang; M. Raphael Pfeffer; James W. Crawford; Emil Frei III
Engineering Human Prolactin to Bind to the Human Growth Hormone Receptor, pp. 1461-1465
Brian C. Cunningham; Dennis J. Henner; James A. Wells
Direct Gene Transfer into Mouse Muscle in Vivo, pp. 1465-1468
Jon A. Wolff; Robert W. Malone; Phillip Williams; Wang Chong; Gyula Acsadi; Agnes Jani; Philip L. Felgner
Is Soot Composed Predominantly of Carbon Clusters?, pp. 1468-1471
Lawrence B. Ebert
Thymic Epithelium Tolerizes for Histocompatibility Antigens, pp. 1471-1474
Josselyne Salaün; Antonio Bandeira; Ibrahim Khazaal; Françoise Calman; Monique Coltey; Antonio Coutinho; Nicole M. Le Douarin
The Calcium Channel Blocker Nifedipine Attenuates Slow Excitatory Amino Acid Neurotoxicity, pp. 1474-1477
J. H. Weiss; D. M. Hartley; J. Koh; D. W. Choi
HIP-70: A Protein Induced by Estrogen in the Brain and LH-RH in the Pituitary, pp. 1477-1479
C. V. Mobbs; G. Fink; D. W. Pfaff
Isolation of a G Protein that is Modified by Learning and Reduces Potassium Currents in Hermissenda, pp. 1479-1483
Thomas J. Nelson; Carlos Collin; Daniel L. Alkon


Book Reviews
Examining Homelessness, pp. 1485-1486
Down and Out in America. The Origins of Homelessness.
Peter H. Rossi
Review author[s]: David A. Snow; Leon Anderson
Information from Ice, pp. 1486-1487
The Environmental Record in Glaciers and Ice Sheets.
H. Oeschger; C. C. Langway, Jr.
Review author[s]: C. C. Delwiche
Books Received, p. 1487


Back Matter (33 pp.)

Previous Issue: New Series, Vol. 247, No. 4948, Mar. 16, 1990
Next Issue: New Series, Vol. 247, No. 4950, Mar. 30, 1990



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