scientific american - 2001 01 - brave new cosmos - a special report
scientific american - 2001 01 - brave new cosmos - a special report
... Scientific American January 2 001 A Cosmic CartographerThis summer the NationalAeronautics and SpaceAdministration is plan-ning to launch a Delta 2rocket carrying an 83 0- kilogram, four-meter-highspacecraft. ... Gravity That Repels • Galaxy-Size ParticlesOh, yes. A SPECIAL REPORT A SPECIAL REPORT Copyright 2000 Scientific American, Inc.Scientific American January 2 001 31www.sciam.comTechnology & ... News & AnalysisNews & Analysis20 Scientific American January 2 001 from a job because of a genetic condition.Such worries have already deterredmany people from having beneficial pre-dictive...
- 93
- 445
- 1
scientific american - 1993 01 - the turbulent birth of the milky way
... Oceanic and Atmospheric Ad-ministration (NOAA). These records pro-vide average monthly sea-surface tem-perature and track anomalies derivedfrom satellite data that are validated bymeasurements ... is part of natureor that it is what humans use to theiradvantage. If you take the practical ra-ther than the idealistic approach, yousave a lot of headaches.ÓÑPaul Wallich24 SCIENTIFIC AMERICAN ... determi-nation that pale colonies are bleachedcan be extremely arbitrary, given thenatural variability of pigmentation.In some cases, normal coral under-going an adaptive behavioral responsecan...
- 91
- 1,075
- 0
scientific american - 1994 01 - searching for strange quark matter
... lands of Cana-da, Alaska and Eurasia, in particular,may help moderate climatic change byserving as a sink for the greenhousegas carbon dioxide.Wetlands also have commercial andutilitarian functions. ... interference. A sea-wall or a dike at the landward boundaryof a salt marsh can prevent the inlandmigration of the marsh when the sea68 SCIENTIFIC AMERICAN January 1994BOTTOMLAND HARDWOOD WETLANDS that ... supportterrestrial, partially aquatic and fullyaquatic plants and animals. In addition,vertical gradients caused by diÝeringdepths of water and saturation createfurther environmental variation. Wet-lands...
- 88
- 491
- 0
scientific american - 1995 01 - warning - digital documents in danger
... forever.Flaws of TranslationRegrettably, this approach is ßawedin two fundamental ways. First, re-lational databases are less standardizedthan they appear. Commercial relation-al database systems ... tables in a relational database can-not transparently show structure. Thatis, the database could not immediatelymake it clear that a corporation con-sisted of one headquarters, Þve nation-al ... NASAJULY 18, 1994JULY 23, 1994JULY 30, 1994AUGUST 24, 1994Copyright 1994 Scientific American, Inc. A planet, a star and a galaxy may not look much alike. Yet each ro-tates and has a magnetic...
- 84
- 531
- 0
scientific american - 1996 01 - the diet - aging connection
... April, Szostak and Charles Wil-son of the University of California atSanta Cruz revealed in Nature that theyhad made ribozymes capable of a broadclass of catalytic reactions. The cataly-sis of ... lack of a ßat rate for lo-cal calls is limiting Internet develop-ment in Japan,Ó comments Naoki Ya-mamoto, editor of Digital Highway Re-port, a newsletter for Japanese infor-mation managers.Under ... than those on lower-qualityitems. Although eÝorts to enter theclosed zone at Arzamas-16 (the Rus-sian weapons-design laboratory that is a rough counterpart to Los Alamos Na-tional Laboratory...
- 85
- 493
- 0
scientific american - 1997 01 - parkinson's disease
... 1996 Scientific American, Inc.To the oohs and aahs of a handpicked audience and thewhir of camera shutters, Gra-ham S. Hawkes gently tugs away a logo-emblazoned veil to reveal a new andtruly ... and Analysis Scientific American January 1997 31surface. Initially this molten rock hadascended comparatively slowly, allow-ing the volatile gases it contained to es-cape gradually. So rather ... Gynecology.Yuet Wai Kan and his associates at theUniversity of California at San Francis-co have now made the technique easier.They first used an antibody to concen-trate fetal and maternal immature...
- 91
- 591
- 0
scientific american - 1998 01 - flying over the solar system
... mutations are thought to accu-mulate at a constant rate, the amount oftime that has passed since two mtDNANews and Analysis30 Scientific American January 1998Bird BrainsSome bird brains are bigger ... that’s all. I did it because I lovedit.” Pour la gloire. —W. Wayt Gibbs in ParisNews and Analysis40 Scientific American January 1998 A NAKED MAN: Lévi-Strauss amongthe Nambikwara of Brazil ... PrizesCHICAGO BOARD OPTIONS EXCHANGEis the world’s largest options market.BRAD LA PAYNE Liaison InternationalCopyright 1997 Scientific American, Inc.News and Analysis Scientific American January...
- 87
- 514
- 0
scientific american - 1999 01 - revolution in cosmology
... for a broad-er appreciation of the factors lead-ing to such a calamity. That year,the amount of food available percapita was high in Bangladesh: in-deed, it was higher than in any oth-er ... perperson that year was high.HUBERT LE CAMPION SYGMACopyright 1998 Scientific American, Inc.News and Analysis Scientific American January 1999 21The Internet has dramaticallyaltered the way many ... FirthPETA FIRTH, who was an award-winning journalist for the Hong Kongdaily newspaper the HK Standard, is a freelance writer based in London.News and Analysis Scientific American January 1999 43ALTERNATIVES...
- 96
- 509
- 0
scientific american - 2000 01 - we were not alone only we remain why
... both.”—Barbara GallagherBARBARA GALLAGHER, a free-lance writer focusing on the space sci-ences, is a research associate at the In-stitute for Advanced Psychology inTiburon, Calif.SCIENCEAND ... placentalmammals may have originated in North America, not Asia.The 110-million-year-old jaw represents a placental namedMontanalestes, which probably looked like a shrew (inset).FRANK W.LANE ... threesmall, shrewlike fossil mammals fromMadagascar, Australia and Montanaare challenging this widely held model.Most of what scientists know aboutearly mammals is based on dental fea-tures,...
- 85
- 1,046
- 0
scientific american - 2001 02 - are we almost tapped out safeguarding every drop of clean water
... in ice ages.Copyright 2 001 Scientific American, Inc.Scientific American February 2 001 33www.sciam.com A small start-up firm in Santa Clara,Calif., had a big idea five yearsago. By adapting the ... UNIVERSITY OF CALIFORNIA AT SANTA BARBARA (bottom)MICROLASER LIGHT emits from a 1.31-micron VCSELat Sandia National Laboratories (top); the University ofCalifornia at Santa Barbara made a 1.55-micron ... version.Copyright 2 001 Scientific American, Inc.News & AnalysisNews & Analysis22 Scientific American February 2 001 MEXICO CITY—Although it’shard to imagine in thisage of urban sprawl andautomobiles,...
- 79
- 401
- 0
Từ khóa: my confessions as a special artiststructuring a research reporta special mode of languagehow to present a written report effectivelythe comprehensive guide on how to read a financial reportNghiên cứu sự biến đổi một số cytokin ở bệnh nhân xơ cứng bì hệ thốngBáo cáo quy trình mua hàng CT CP Công Nghệ NPVNghiên cứu sự hình thành lớp bảo vệ và khả năng chống ăn mòn của thép bền thời tiết trong điều kiện khí hậu nhiệt đới việt namMột số giải pháp nâng cao chất lượng streaming thích ứng video trên nền giao thức HTTPGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitĐỒ ÁN NGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWANNGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWAN SLIDEPhát triển mạng lưới kinh doanh nước sạch tại công ty TNHH một thành viên kinh doanh nước sạch quảng ninhPhát triển du lịch bền vững trên cơ sở bảo vệ môi trường tự nhiên vịnh hạ longPhát hiện xâm nhập dựa trên thuật toán k meansNghiên cứu khả năng đo năng lượng điện bằng hệ thu thập dữ liệu 16 kênh DEWE 5000Tổ chức và hoạt động của Phòng Tư pháp từ thực tiễn tỉnh Phú Thọ (Luận văn thạc sĩ)Tăng trưởng tín dụng hộ sản xuất nông nghiệp tại Ngân hàng Nông nghiệp và Phát triển nông thôn Việt Nam chi nhánh tỉnh Bắc Giang (Luận văn thạc sĩ)Nguyên tắc phân hóa trách nhiệm hình sự đối với người dưới 18 tuổi phạm tội trong pháp luật hình sự Việt Nam (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtMÔN TRUYỀN THÔNG MARKETING TÍCH HỢP