科学美国人 Scientific American 2005年1-2月 PDF 已更新

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资源信息： 中文名: 科学美国人 原名: Scientific American 别名: 科学美国人 版本: 2005年1-2月 PDF(已更新) 发行时间: 2005年02月 地区: 美国 概述:

《Scientific American》是美国发行的知名科学类刊物。作为全球著名的与《Nature》齐名的高级科普杂志，始创于1845年。在其后这近160年的发展过程中，《Scientific American》的文章多出自世界著名科学家之手，内容涉及所有当前重大科学主题。至今已有120多位诺贝尔奖得主在上面发表过文章。 《Scientific American》杂志科学与人文精神并举、强调科学对人类社会和经济生活影响、密切关注科学敏感问题对人类伦理、恐怖主义、战争和人类未来的争论，使不同科学观点发表意见的平台。 本人为ADSL，所以上传较慢，请各位见谅 http://www.sciamdigital.com/coverimages/images/cover/2005/0205cover_125x165.gif 2005年第二期简介 DESCRIPTION : * The Littlest Human--Giant questions surround a child-size species from just 13,000 years ago * How Ulcer Germs Can Be Good for You * Nanotube Fabric for Microelectronics * Hardwiring Memories into Your Brain * Smarter Search Engines * Quantum Clouds and Atom Chips * The Year's Best Inventions by U.S. Students CONTENTS : INFORMATION TECHNOLOGY Better Displays with Organic Films By Webster E. Howard Light-emitting organic materials can make electronic displays SPECIAL REPORT Four Keys to Cosmology By George Musser The big bang theory works better than ever. If only cosmologists could figure out that mysterious acceleration.... SPECIAL REPORT: COSMOLOGY The Cosmic Symphony By Wayne Hu and Martin White Sound waves powerfully shaped the early universe BIOTECHNOLOGY Insights into Shock By Donald W. Landry and Juan A. Oliver Still a last step before death for thousands of people, shock is shedding some of its medical mystery and becoming more treatable SPECIAL REPORT: COSMOLOGY Out of the Darkness By Georgi Dvali A leakage of gravity might cause cosmic acceleration SPECIAL REPORT: COSMOLOGY Reading the Blueprints of Creation By Michael A. Strauss New surveys highlight extraordinary cosmic structures CRIMINOLOGY The Case of the Unsolved Crime Decline By Richard Rosenfeld Crime rates in the U.S. plummeted in the 1990s. None of the common theories fully explains why, however SPECIAL REPORT: COSMOLOGY From Slowdown to Speedup By Adam G. Riess and Michael S. Turner Supernovae reveal when the expansion of the universe sped up 2005年第一期简介 http://www.sciamdigital.com/coverimages/images/cover/2005/0105cover_125x165.gif PSYCHOLOGY Exploding the Self-Esteem Myth By Roy F. Baumeister, Jennifer D. Campbell, Joachim I. Krueger and Kathleen D. Vohs Boosting students' self-esteem has become a national preoccupation--but it does little to improve grades or discourage bad behavior INNOVATION Best-Kept Secrets By Gary Stix Quantum cryptography, long touted as a theoretical fix for data security problems, finally takes shape in commercial products. ASTROPHYSICS The Midlife Crisis of the Cosmos By Amy J. Barger Although it is not as active as it used to be, the universe is still forming stars and building black holes at an impressive pace INFORMATION SCIENCE Considerate Computing By W. Wayt Gibbs Feeling overloaded by intrusive digital technology? New attentive interfaces for computers, phones and cars will understand your priorities LIFE SCIENCES Immunity's Early-Warning System By Luke A. J. O'Neill The body's first line of defense against invading microbes may be the key to better ways of battling infections and inflammatory disease SCIENCE IN PICTURES Eye of the Beholder By Emily Harrison Gorgeous entries in the Nikon Small World photomicroscopy competition reveal minute biological beauties that elude unaided vision BIOTECHNOLOGY Capturing a Killer Flu Virus By Jeffery K. Taubenberger, Ann H. Reid and Thomas G. Fanning Researchers have resurrected the deadliest flu in history to learn why it killed millions and how to prevent the next pandemic departments INSIGHTS You, Robot REVIEWS How Are the Mighty Fallen? The Editors Recommend 50, 100 AND 150 YEARS AGO Personality Clash -- War Worries -- Heavenly Revolutions LETTERS TO THE EDITORS Letters SA PERSPECTIVES Worth a Pound of Cure WORKING KNOWLEDGE Open Sesame columns ANTIGRAVITY Captive Audience SKEPTIC Quantum Quackery NEWS SCAN Polio Postponed Politics slow polio's eradication--and cause it to spread A Bad Fix for Hubble? Robotic repair may be riskier than first thought Snaking Its Way In Feared snakehead fish sets up house in the U.S. Sound Findings Sonar offers a way to count salmon accurately Through Titan's Haze Saturn moon has a surface that is dynamic--and puzzling A Glimpse of Supersolid Solid helium can behave like a superfluid By the Numbers: Nurses in Short Supply The profession is heading toward its biggest crisis News Scan Briefs