December 1989

Faces In The Crowd November has been a busy time for personnel moves at important science policy positions in and around the government. They include: John Toll, a physicist and former chancellor of the University of Maryland, who was named president of the Universities Research Association Inc. URA, a consortium of 72 schools with strong programs in particle physics, operates the Superconducting Supercollider laboratory being built outside Dallas under contract with the Department of Energy

Los Alamos Wins Laser War... An outbreak of pragmatism in the Defense Department’s “Star Wars” program has tipped the balance toward Los Alamos National Lab in its 10-year competition with Lawrence Livermoew National Labs to develop a ground-based free-electron laser. in October, the Strategic Defense Initiative Organization picked Los Alamos and its partner, Boeing Aerospace and Electronics, for the $500 million project. The decision will mean $75 million over the next five

Faster Sequencing Ahead A Foster Park, Calif., firm feels it could be holding the key to speedy completion of the human genome project. Applied Biosystems Inc. is developing a device called a sequencer front end that would take over much of the manually done chemical sequencing reactions that now limit the speed of automated sequencers. The publicly owned company, abiotech equipment maker that recorded $160 million in sales last year, is hoping the new device will be ready by the end of next y

IEEE Delegation In The Soviet Union Eight members of the Institute of Electrical and Electronics Engineers Inc. returned home from their visit to the Soviet Union with basically what they were looking for—more insight into the Soviets’ research in optoelectronics. The IEEE delegation met with its engineering counterpart, the A.S. Popov Society, for the first time since 1984 (The Scientist, July 24, 1989, page 8), and toured Soviet industries, labs, and universities in Moscow and Le

Summer With The Navy Each summer, the U.S. Navy opens its doors to university scientists and engineers who want to work temporarily at 19 Navy research and development centers. The program, which is administered by the American Society for Engineering Education, offers three levels of appointments: summer faculty fellows, who must have two years’ teaching and research experience; senior fellows, who must have conducted research for five years and have significant publications; and distin

[Editor’s note: Next spring, Cornell University professor Roald Hoffmann will be honored by his peers with the American Chemical Society’s Priestley Medal, the society’s highest award. For Hoffmann, 52, it won’t be his first trip to a dais. He is a Nobel laureate, having won the 1981 prize for chem- istry. And, as the recipient of both the A.C. Cope Award in Organic Chemistry and the ACS’s award for inor- ganic chemistry, he is the only person in the history of the

There is increasing clamor for better education in mathematics and science---especially since the failure of innovations such as New Math and Discovery Learning—and it is not surprising that the slogan “back to basics” has appeal. Indeed, it would be desirable to have, everyone well-schooled in reading, writing, and basic arithmetic operations. But a return to the old methods will not achieve this. The Report on the Second International Mathematics Study of 1987 found R

The recent article “NSF Reinstitutes Training Grants To Spur Interdisciplinary Science” (The Scientist, Oct. 2, 1989, page 1) leads me to wonder if NSF has fully considered the availability of jobs and research funding for the trainees once they get their degrees. It appears that many of these students will be trained in fields in which research is done primarily at universities. To make adequate use of their training they will need startup funds and ongoing grant support in amount

The Oct. 30, 1989, issue of The Scientist contained a report in the University Briefs section [page 6] about the creation of a Western Hemisphere sister institute to the International Center for Theoretical Physics in Trieste, Italy. We at Fermilab have had a similar program of cooperation with developing nations of Latin America. However, we put major stress on experimental science and technology, with the thought that collaboration here would be more relevant to the needs of development. Our

COMPUTATIONAL SCIENCE BY BRUCE G. BUCHANAN Department of Computer Science University of Pittsburgh Pittsburgh, Pa. " Diagnosis in medicine has been a testbed for developing ideas about troubleshooting in .engineering disciplines. A recently published paper addresses a fundamental problem of defining the variety of knowledge structures—including causal models—needed to support a broad spectrum of reasoning mechanisms used in diagnosis. A systematic method of defining concepts and l

Scientists who study the rapidly occurring optical phenomena associated with the photoluminescent analysis of semiconductor materials, as well as those who conduct energy relaxation and transfer studies and laser, optical fiber, or optical logic research, often need specialized detectors, known as streak cameras, to analyze their data successfully. Streak cameras focus incoming photons onto a photocathode, which converts them into a beam of photoelectrons proportionate to incoming intensity. A

CHEMISTRY BY RON MAGOLDA Medical Products Department E.I. Du Pont de Nemours & Co. Wilmington, Del. " Rather than using triple-helix formation and DNA-binding proteins, a new approach is discussed that can sequence specifically cleaved supercoiled double-stranded DNAs by a hybrid nuclease utilizing D-loop formation. This design technology should facilitate the manipulation and mapping of genetic DNA. D.R. Corey, D. Pei, P.G. Schulz, "Sequence-selective hydrolysis of duplex DNA by an oligonuc

In the past few years, the problem of ocean pollution has captured the attention of the media and the public, especially in the wake of such disasters as the washing up of medical waste on the New Jersey shoreline in the summer months of 1988. The media and the public have yet to focus in the same way on the problem of pollution of inland freshwater, including lakes, ponds and streams. Scientists working in the field of limnology, however, have been quietly studying this issue for more than t

PLANT AND ANIMAL SCIENCES BY PETER D. MOORE Department of Biology King's College London, U.K. The cycads are an unusual group of gymnosperms in that they are pollinated by insects rather than by wind. In a study of the Mexican cycad, Zamia furfuracea, pollination was found to be dependent on a single insect species, the host-specific snout weevil, which completes its entire life cycle within the cones of this plant. Hatching, feeding, mating, and oviposition all take place within the male co

B. Vogelstein, E.R. Fearon, S.R. Hamilton, S.E. Kern, et al., “Genetic alterations during colorectal-tumor development,” The New England Journal of Medicine, 319,525-32, 1 September 1988. Bert Vogelstein (Molecular Genetics Laboratory, Johns Hopkins Oncology Center, Baltimore): “It is widely believed that cancer is the result of a series of genetic alterations. This paper is important because it lends substantial support to this belief with regard to one of the most common hu

Nuclear magnetic resonance spectroscopy now standard in chemistry laboratories, is also fast becoming part of the technologic repertoire of biochemists, geologists, materials scientists, and even food scientists and farmers. In the early years of this analytical tool, its applications were largely confined to the physical sciences. Now, however, several major advances have fine-tuned and, at the same time, expanded the capabilities of NMR, so that today the technology is proving valuable in a