scientific american - 2001 09 - nanotech

scientific american - 2001 09 - nanotech

... applications. www.sciam.com SCIENTIFIC AMERICAN 37 NANOPHASE TECHNOLOGIES NANOPARTICLES are made by Nanophase Technologies. Copyright 2001 Scientific American, Inc. Copyright 2001 Scientific American, Inc. www.sciam.com ... approval. Copyright 2001 Scientific American, Inc. 20 SCIENTIFIC AMERICAN SEPTEMBER 2001 WOLFGANG KAEHLER Corbis news SCAN E DINBURGH, SCOTLAND—On...

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scientific american - 1993 09 - special issue - life, death, and the immune system

... some patients to par- ticipate in double-blind, placebo-con- trolled trials. He argues instead for out- come studies, which simply compare patients who receive a particular therapy with others, ... order, fax (212) 35 5-0 408. Index of articles since 1948 available in electronic format. Write SciDex™, SCI- ENTIFIC AMERICAN, 415 Madison Ave- nue, New York, N.Y. 1001 7-1 111, or fax (212...

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scientific american - 1994 09 - conquering lyme disease

... health on ICD stan- dards. In some cases, more than one DSM-IV disorder falls under the same ICD-IX heading. And the ICD-IX num- bers are diÝerent from those used in the ICD-X, which debuted ... appendix explains how to cross- reference ICD-IX and ICD-X codes. So why does DSM-IV use codes from an earlier version of ICD? ÒIt may take another seven years before ICD-X stan- dards are adopted in...

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scientific american - 1995 09 - 150th anniversary issue - key technologies for the 21st century

... Camp for Surgeons MICHAEL CRAWFORD Copyright 1995 Scientific American, Inc. 28 SCIENTIFIC AMERICAN September 1995 S queezed by fast-Þx Prozac dis- pensers on one side and stingy insurers on the ... that managed-care oÛcials might be skepti- cal of the chaos-inspired therapy he ad- vocates. Nevertheless, ÒI donÕt think Pro- zac is going to help everybody either,Ó he declares. ÑJohn Horg...

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scientific american - 1996 09 - special issue - what you need to know about cancer

... ungulates—hoofed vertebrates related to deer—lived before the Cretaceous-Tertiary extinc- tion, which wiped out the dinosaurs 65 million years ago. Eighty-five-million- year-old jaws and teeth, clearly from an ... production, Intel made micropro- cessors affordable, launching the per- sonal-computer industry and a multi- billion-dollar business. Now, 25 years later, a small start-up just a...

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scientific american - 1997 09 - building doors into cells

... GRACE Copyright 1997 Scientific American, Inc. In Search of AIDS-Resistance Genes Scientific American September 1997 49 blood cells from two of these men indi- cated that the CCR5 protein was ab- sent from ... help prevent the cell-to-cell spread of any HIV particles that somehow survived the HIV-destroying therapy. The idea of simultaneously curing pa- In Search of AIDS-Resistance Gen...

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scientific american - 1998 09 - a last look at laetoli

... 1998 Scientific American, Inc. G 1-3 1 G 1-3 0 G 1-2 9 G 1-2 8 G 1-2 5 G 1-2 6 G 1-2 7 G 1-3 3 G 1-3 4 G 1-3 5 G 1-3 6 G 1-3 7 G 1-3 8 G 1-3 9 G2/ 3-2 2 G2/ 3-2 1 G2/ 3-1 8 G2/ 3-1 9 G2/ 3-2 0 G2/ 3-2 4 G2/ 3-2 5 G2/ 3-2 6 G2/ 3-2 7 G2/ 3-2 8 G2/ 3-2 9 G2/ 3-3 1 G2/ 3-3 0 CARNIVORE TRACKS HIPPARION TRACKS HIPPARION FOAL TRACKS 1979 ......

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scientific american - 1999 09 - t rex reexamined

... that “educa- tion to prevent snake- bites should include warnings against han- dling recently killed snakes.” In the inter- ests of science edu- cation and public safe- ty, S CIENTIFIC AMERICAN therefore ... inklings of non-Gaussian- ity won’t go away. For several years, ob- servers have been measuring the aniso- tropies at ﬁner resolutions than COBE did, using balloon-borne and ground- bas...

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scientific american - 2000 09 - muscles & genes are star athletes born, not made

... HAZARDS Five-year-old 10-year-old Adult CELL-PHONE ENERGY penetrates more deeply into a child’s brain than an adult’s, as shown in these models. Copyright 2000 Scientific American, Inc. Scientiﬁc American ... of vol- unteers to perform an array of cognitive tasks while they were exposed to simu- lated cell-phone emissions from head- sets. The emissions had no apparent ef- fect on short-...

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scientific american - 2001 01 - brave new cosmos - a special report

... 1, Aspirin 0 28 Scientiﬁc American January 2001 Bouncier than ever MIKE NEVEUX Corbis News Briefs Copyright 2000 Scientific American, Inc. Scientiﬁc American January 2001 29www.sciam.com Profile C HEVY ... propos- als pending in Congress. When added to the $575 million provid- ed in 2000 by HHMI, U.S. biomedical sci- entists will have a veritable embarrass- ment of riches. (The Lo...

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