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Previous Issue: New Series, Vol. 263, No. 5152, Mar. 11, 1994
Next Issue: New Series, Vol. 263, No. 5154, Mar. 25, 1994
Front Matter (15 pp.)
Editorial: Need for Enhanced Nuclear Safeguards, p. 1543
- Philip H. Abelson
Letters
- Reacting to Gasoline Additives, p. 1545
- John P. Middaugh
- Is Dioxin a Human Carcinogen? (Continued), pp. 1545-1546
- Stephen S. Sternberg
- Cell Transplantation and Research Design, p. 1546
- David L. Felten
- An Inclusive Budget Process, p. 1548
- David Lightfoot
- Superconductor Radiation Damage After Doping, pp. 1548-1549
- R. L. Fleischer; Gary Taubes
ScienceScope, p. 1551
- Richard Stone
News and Comment
- French Gene Mappers at Crossroads, pp. 1552-1554
- Peter Aldhous
- Nicotine Scrutinized as FDA Seeks to Regulate Cigarettes, pp. 1555-1556
- Rachel Nowak
- Professor Slams MIT Over Center Closure, p. 1556
- John Travis
- India Expands Electronic Research Network, pp. 1557-1558
- Bhupesh Mangla
- Public Health Agency Shakeup Opposed, p. 1558
- Michael Simm
Research News
- Stalking the Start of Colon Cancer, pp. 1559-1560
- Robert F. Service
- Fire Ants Parlay Their Queens Into a Threat to Biodiversity, pp. 1560-1561
- Charles C. Mann
- Did Pinatubo Send Climate-Warming Gases Into a Dither?, p. 1562
- Richard A. Kerr
- Molecule Makers Learn the Rules of a Crooked Game, pp. 1563-1564
- Faye Flam
- 'Long PCR' Leaps Into Larger DNA Sequences, pp. 1564-1565
- Jon Cohen
Random Samples, pp. 1566-1567
- Constance Holden
Perspectives
- Spatiotemporal Chaos, pp. 1569-1570
- M. C. Cross; P. C. Hohenberg
- Time Is the Essence: Molecular Analysis of the Biological Clock, pp. 1570-1572
- Terry L. Page
Why Snakes Have Forked Tongues, pp. 1573-1577
- Kurt Schwenk
Research Article
- Negative Feedback Defining a Circadian Clock: Autoregulation of the Clock Gene Frequency, pp. 1578-1584
- Benjamin D. Aronson; Keith A. Johnson; Jennifer J. Loros; Jay C. Dunlap
Reports
- 5-Coordinate Si Compounds as Intermediates in the Synthesis of Silicates in Nonaqueous Media, pp. 1585-1587
- Bruno Herreros; Stuart W. Carr; Jacek Klinowski
- Recent Changes in Atmospheric Carbon Monoxide, pp. 1587-1590
- Paul C. Novelli; Ken A. Masarie; Pieter P. Tans; Patricia M. Lang
- Sound Velocities in Dense Hydrogen and the Interior of Jupiter, pp. 1590-1593
- Thomas S. Duffy; Willem L. Vos; Chang-Sheng Zha; Russell J. Hemley; Ho-Kwang Mao
- Short-Lived Chemical Heterogeneities in the Archean Mantle with Implications for Mantle Convection, pp. 1593-1596
- Janne Blichert-Toft; Francis Albarède
- Growth of Diamond from Atomic Hydrogen and a Supersonic Free Jet of Methyl Radicals, pp. 1596-1598
- Szetsen Steven Lee; David W. Minsek; Daniel J. Vestyck; Peter Chen
- An in Vitro System for Adhesion and Fusion of Maize Gametes, pp. 1598-1600
- J.-E. Faure; C. Digonnet; C. Dumas
- Biodegradable Long-Circulating Polymeric Nanospheres, pp. 1600-1603
- Ruxandra Gref; Yoshiharu Minamitake; Maria Teresa Peracchia; Vladimir Trubetskoy; Vladimir Torchilin; Robert Langer
- Loss of Circadian Behavioral Rhythms and per RNA Oscillations in the Drosophila Mutant timeless, pp. 1603-1606
- Amita Sehgal; Jeffrey L. Price; Bernice Man; Michael W. Young
- Block in Nuclear Localization of period Protein by a Second Clock Mutation, timeless, pp. 1606-1609
- Leslie B. Vosshall; Jeffrey L. Price; Amita Sehgal; Lino Saez; Michael W. Young
- Activation of Phosphatidylinositol-3′ Kinase by Src-Family Kinase SH3 Binding to the p85 Subunit, pp. 1609-1612
- Christopher M. Pleiman; W. Marc Hertz; John C. Cambier
- Requirement for Transcription Factor IRF-1 in NO Synthase Induction in Macrophages, pp. 1612-1615
- R. Kamijo; H. Harada; T. Matsuyama; M. Bosland; J. Gerecitano; D. Shapiro; J. Le; S. I. Koh; T. Kimura; S. J. Green; T. W. Mak; T. Taniguchi; J. Vilček
- Positive and Negative Thymocyte Selection Induced by Different Concentrations of a Single Peptide, pp. 1615-1618
- Eric Sebzda; Valerie A. Wallace; John Mayer; Rae S. M. Yeung; Tak W. Mak; Pamela S. Ohashi
- Requirement for BDNF in Activity-Dependent Survival of Cortical Neurons, pp. 1618-1623
- Anirvan Ghosh; Josette Carnahan; Michael E. Greenberg
- Long-Range Cis Preference in DNA Homology Search Over the Length of a Drosophila Chromosome, pp. 1623-1625
- William R. Engels; Christine R. Preston; Dena M. Johnson-Schlitz
- Mutation of a mutL Homolog in Hereditary Colon Cancer, pp. 1625-1629
- Nickolas Papadopoulos; Nicholas C. Nicolaides; Ying-Fei Wei; Steven M. Ruben; Kenneth C. Carter; Craig A. Rosen; William A. Haseltine; Robert D. Fleischmann; Claire M. Fraser; Mark D. Adams; J. Craig Venter; Stanley R. Hamilton; Gloria M. Petersen; Patrice Watson; Henry T. Lynch; Päivi Peltomäki; Jukka-Pekka Mecklin; Albert de la Chapelle; Kenneth W. Kinzler; Bert Vogelstein
- Coatomer Interaction with Di-Lysine Endoplasmic Reticulum Retention Motifs, pp. 1629-1631
- Pierre Cosson; François Letourneur
Book Reviews
- The Swedish Scene, pp. 1633-1635
- Center on the Periphery. Historical Aspects of 20th-Century Swedish Physics.
- Svante Lindqvist; Marika Hedin; Thomas Kaiserfeld
- Review author[s]: Finn Aaserud
- Psychology via Physiology, pp. 1635-1636
- The Neuroscience of Animal Intelligence. From the Seahare to the Seahorse.
- Euan M. Macphail
- Review author[s]: M. E. Bitterman
- Living Landscapes, pp. 1636-1637
- The Desert's Past. A Natural Prehistory of the Great Basin.
- Donald K. Grayson
- Review author[s]: David P. Adam
- Books Received, p. 1637
Back Matter (19 pp.)
Previous Issue: New Series, Vol. 263, No. 5152, Mar. 11, 1994
Next Issue: New Series, Vol. 263, No. 5154, Mar. 25, 1994