scientific american - 1995 10 - dangers from new viral plagues

... debt- or, the U.S. ÑPaul Wallich 38 SCIENTIFIC AMERICAN October 1995 THE ANALYTICAL ECONOMIST Are Band-Aids Enough for Third World Debt? Copyright 1995 Scientific American, Inc. OCTOBER 1995 $4.95 Dangers ... the point of dis- 54 SCIENTIFIC AMERICAN October 1995 ÒThe foundational line of true ethical behavior is the degree of freedom from self-centeredness.Ó Copyright...

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... ADMINISTRATION Copyright 1995 Scientific American, Inc. 24 SCIENTIFIC AMERICAN April 1995 T he more than one million alco- holics in this country who seek treatment every year have a new alternative. ... ÑSasha Nemecek 26 SCIENTIFIC AMERICAN April 1995 U ntil recently, many medical in- vestigators believed the AIDS vi- rus remains more or less dor- mant in asymptomatic pers...

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... Òinductivist, ameliorative, progressive, add-a-fact-at- a-time-donÕt-theorize-till-youÕre-old mod- el of doing science.Ó When I ask Gould if he believes, as Kuhn does, that science does not ad- vance toward truth, ... historians from the very beginning. By bringing in groups such as the Amer- MICHAEL CRAWFORD Copyright 1995 Scientific American, Inc. 28 SCIENTIFIC AMERICAN August 1...

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... mil- lion person-days of restricted activity, 65 million person-days of chest discom- fort, 100 million person-days of head- ache, 120 million person-days of cough- ing, 180 million person-days ... deserved two Nobel Prizes,Ó says bio- chemist G. Nigel Godson of New York University Medi- cal Center. ÒHe single-hand- edly engineered two revo- lutions in biology.Ó In addi- tion, Coulson boas...

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... 330 REDSHIFT 0.50 DENSITY 0 .10. 01 RELATIVE ABUNDANCE 1.0 1.0 10 -2 10 -4 10 -6 10 -8 10 -1 0 HELIUM HELIUM 3 LITHIUM DEUTERIUM Copyright 1994 Scientific American, Inc. would still be detectable in the existing universe. D espite ... DNA POWERED, HEAVIER- THAN-AIR FLIGHT THEORY OF RELATIVITY COMMUNICATIONS SATELLITE TRANSISTOR Copyright 1994 Scientific American...

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... stream. $500.00 $100 .00 $50.00 $100 .00 $500.00 $400.00 $450.00 $350.00 DEPOSIT CHECK#314 DEPOSIT CHECK#315 4/5/94 4/26/94 4/27/94 11/3/94 0111 1100 00000 0101 0101 0000000 0100 00011 1101 110BITSTREAM: UNINTENDED 5-BIT ... Spring 1992. 0101 1100 00000 0101 0100 00000 0100 00011 1101 110BITSTREAM: REAL NUMBER “1.3125” INTEGER “21” LOGICAL BITMAP NO, NO, NO, YES NO, YES, NO, YES SOUNDCHARA...

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... Health Copyright 1995 Scientific American, Inc. 18 SCIENTIFIC AMERICAN February 1995 I n their quest to determine accurate ages for everything from super- plume eruptions to hominid fos- sils, geologists ... Mac- quarie, the koala has deÞnitely had its placid existence disrupted. ÑGary Stix SCIENTIFIC AMERICAN February 1995 15 Copyright 1995 Scientific American, Inc. W...

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... long as society has a preju- dice against obesity.Ó ÑW. Wayt Gibbs SCIENTIFIC AMERICAN March 1995 35 Copyright 1995 Scientific American, Inc. SCIENTIFIC AMERICAN March 1995 37 F or the past 30 ... CRAWFORD Copyright 1995 Scientific American, Inc. G etting rid of the long-lived, ra- dioactive by-products of nucle- ar power is a problem that has stalked the industry for it...

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... Star Copyright 1995 Scientific American, Inc. S ince the early 1960s, medical re- search, public information cam- paigns and government assess- ments have exposed the dangers of to- bacco smoke. ... represents a one-in-a-million hazard, the point below which the cancer risk from a food additive is too small to be of concern to the Food and Drug Administration. Between –2 and –4 are o...

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... delivering cash from a clerk to a store bookkeeper in Þve-and-dime stores. The bookkeeper would receive the money and send back the change. Tubes re- placed Òcash children,Ó 1 0-, 1 1- and 1 2- year-olds ... (right). MARK GEORGE NIMH Copyright 1995 Scientific American, Inc. 26 SCIENTIFIC AMERICAN June 1995 groups looked very diÝerent.Ó Both sex- es had equally activated...

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