scientific american special edition - 1990 01 - is the brain''s mind a computer program
scientific american special online issue - 2006 no 27 - child's mind
... Appalachianchildren.While our Appalachian study was un-der way, Diaz and one of his graduatestudents, Marnie H. Frauenglass, video-taped 32 three- to six-year-olds in the laboratory as the ... highly academically gifted adoles-cents revealed that more than 95 percent show a strong dis-parity between mathematical and verbal interests.Extraordinarily strong mathematical and spatial abilities ... read,much as we cannot recall anything special about learn-ing to talk. Although these skills are related, the ways weacquire them differ profoundly. Learning to speak is au-tomatic for almost all...
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scientific american special edition - 1998 vol 09 no3 - the oceans
... moving. The 270-meter-long Sarato-ga, for example, was the first U.S. aircraftcarrier and the victim of kamikaze attacksat Iwo Jima that killed 123 sailors. Damagefrom the attacks is still visible ... SouthAmerica, before the construc-tion of the Panama Canal. (Be-ing merely the southern parts of the Atlantic, Pacific and Indianoceans, the “Southern Ocean” hasbeen included in the statistical ... within the range of liq-uid water. The same mechanism may have oper-ated on Mars. Although the planet is now volcanically inactive, it once hadmany eruptions and could have maintained a vigorous...
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scientific american special edition - 1999 vol 10 no1 - the future of space exploration
... stars and galaxies 2 001 Telescope Facility (NASA)INTEGRAL, International Gamma- Obtain spectra of neutron stars, black holes, 2 001 Ray Astrophysics Lab (ESA) gamma-ray bursters and active galactic ... ma-jor goes wrong during assembly. The British magazine New Scientist has de-cided, on the basis of a statistical analysisof risks, that there is a 73.6 percent chanceof at least one catastrophic ... economicbenefits? NASA has maintained that the ultimate goal of the space station is toserve as a springboard for a mannedmission to Mars. Such a mission wouldprobably cost at least as much as the sta-tion;...
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scientific american special edition - 2000 vol 11 no2 - the quest to beat aging
... Americans—Asian -American women—and the shortest, Native American men. Asian -American women likeMary are outliving even Japanese women. But Native Amer-ican men in Bennett County, South Dakota, have the ... overdoses, alcoholismand suicide are all factors in the early demise of many rockmusicians. Nationwide, the Bureau of Labor Statistics says,highway crashes are the leading cause of on -the- job fatalities.And ... infant mortality ratesare somewhat higher than those in northern Europe andJapan,” says Bob Anderson, a senior statistician at the Na-tional Center for Health Statistics. “And that makes a...
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scientific american special edition - 2000 vol 11 no3 - building the elite athlete
... breaking inthese games.In the 1960s the best players in baseball were argu-ably Hank Aaron and Willie Mays, and in fact thosetwo are now generally regarded as the greatest livingballplayers. ... what it was on the eve of the 1996 At-lanta Games is revealing—and perhaps a little de-pressing. The tests, technology and administrativeprocedures available to sports officials are essential-ly ... which the Australians had failed to qualify a singleathlete for the 1988 Olympics. The Tal-ent Search team described the physicaland physiological characteristics thatappeared to differentiate...
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scientific american special edition - 2002 vol 12 no1 - the hidden mind
... that the cerebral neocortex plays a dominant role.Visual information from the retina reach-es the neocortex mainly by way of a partof the thalamus (the lateral geniculate nu-cleus); another ... visualareas in the cortex. It is unclear whetheran intact primary visual cortex region is essential for immediate visual awareness.Conceivably the visual signal in blindsight is so weak that ... withthose areas that project into one another’slayer 4. (The latter areas are always at the same level in the visual hierarchy.) The key issue, then, is how the brainforms its global representations...
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scientific american special edition - 2002 vol 12 no2 - the once and future cosmos
... supernova—type Ia—quite precisely.Death StarWHAT IS A TYPE IA SUPERNOVA? Essentially, it is the blastthat occurs when a dead star becomes a natural thermonuclearbomb. Spectacular as this final ... unlike balls near the earth’s surface, CDM particles movein a gravitational field that is not constant. After all, the grav-itational field is produced by all the particles together, whichare undergoing ... microwave background radiation havepinned down the values of the large-scale cosmological para-meters, freeing galactic modelers to focus on the small-scale in-tricacy. Soon we may unite the large,...
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scientific american special edition - 2003 vol 13 no1 - the edge of physics
... that have noelectrical charge evaporate until all theirmass is radiated away, black holes withelectrical or (in theory) magnetic chargecannot do that; their evaporation ceaseswhen the gravitational ... Because this has nothappened, there must be some way out.”Twenty more famous theoretical phys-icists are called to the stand. All that be-comes clear is that they cannot agree. The Information ... inter-galactic space. As Windbag’s thermome-ter approaches the horizon, however, itregisters higher. At a distance of a cen-timeter, it measures about a thousandth of a degree; at a nuclear...
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scientific american special edition - 2003 vol 13 no3 - new light on the solar system
... in equa-torial locations were areas of very faint x-ray emis-sion the so-called coronal holes.Connection to the Starry DynamoEACH MAJOR SOLAR SPACECRAFTsince Skylabhas offered a distinct ... a limited scale. It appears that heat was transferred,at least in the relatively recent past, by the eruption of vast plainsof basaltic lava and later by the volcanoes that grew on top ofthem. ... or cutsacross another is the younger. This principle is particularly help-ful in establishing the relative ages of craters. A Fractured HistoryMERCURY HAS SEVERALlarge craters that are surroundedby...
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Từ khóa: the structure and implementation of computer programsthe structure and interpretation of computer programs videothe structure and interpretation of computer programs bookthe structure and interpretation of computer programs amazonthe structure and interpretation of computer programs mitBáo cáo thực tập tại nhà thuốc tại Thành phố Hồ Chí Minh năm 2018Nghiên cứu sự biến đổi một số cytokin ở bệnh nhân xơ cứng bì hệ thốngNghiên cứu vật liệu biến hóa (metamaterials) hấp thụ sóng điện tử ở vùng tần số THzđề thi thử THPTQG 2019 toán THPT chuyên thái bình lần 2 có lời giảiGiáo 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 LPWANQuản lý hoạt động học tập của học sinh theo hướng phát triển kỹ năng học tập hợp tác tại các trường phổ thông dân tộc bán trú huyện ba chẽ, tỉnh quảng ninhPhát hiện xâm nhập dựa trên thuật toán k meansNghiên cứu về mô hình thống kê học sâu và ứng dụng trong nhận dạng chữ viết tay hạn chếTìm hiểu công cụ đánh giá hệ thống đảm bảo an toàn hệ thống thông tinThơ nôm tứ tuyệt trào phúng hồ xuân hươngBT Tieng anh 6 UNIT 2Tăng 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)Giáo án Sinh học 11 bài 15: Tiêu hóa ở động vậtGiáo án Sinh học 11 bài 15: Tiêu hóa ở động vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtTrách nhiệm của người sử dụng lao động đối với lao động nữ theo pháp luật lao động Việt Nam từ thực tiễn các khu công nghiệp tại thành phố Hồ Chí Minh (Luận văn thạc sĩ)Đổi mới quản lý tài chính trong hoạt động khoa học xã hội trường hợp viện hàn lâm khoa học xã hội việt namMÔN TRUYỀN THÔNG MARKETING TÍCH HỢP