scientific american - 1995 08 - a new theory of aids latency
scientific american - 1995 08 - a new theory of aids latency
... 1831 Michael Faraday had observed that such vertical vibrations create arrays of standing waves on the surface. W. Stu- art Edwards of Haverford College in Penn- sylvania and Stephan Fauve of the ... pulses of catastrophic change that dramatical- ly reshape landscapes,Ó Hearty explains. Because the region is tectonically sta- ble and made of impressionable calcium carbonate, it prov...
Ngày tải lên: 12/05/2014, 15:01
A New Map of Hollywood: The Production and Distribution of American Motion Pictures pot
... Canada, Aus- tralia, Britain and Mexico, with Canada receiving 81% of the total. The Monitor Company (1999) estimates that the total dollar loss to the US as a result of economic runaways was ... stage facilities and crews at alternative Hollywood today is a large-scale, many-sided, cultural- production and franchising complex, disgorging anlocations. A dramatic parallel case can be...
Ngày tải lên: 07/03/2014, 15:20
scientific american - 1994 08 - red tides - a growing hazaed
... exhaustive- ly studied is not fully appreciated. New Þndings about star coral, or Montas- traea annularis, oÝer a dramatic exam- ple. This organism Òis sort of a lab rat of corals,Ó explains Nancy ... Russia and built a base at Bandar Abbas. The U.S. then assigned two Los AngelesÐclass nuclear-powered attack submarines to patrol and map the area. Roughly a quar- ter of the wor...
Ngày tải lên: 12/05/2014, 14:57
scientific american - 1995 10 - dangers from new viral plagues
... with an above-average con- centration of Jews. The Southeast, one area of low breast cancer mortality, has a high teenage pregnancy rate and a considerably lower proportion of college graduates and ... behavior of those who claim that all moral systems are arbitrary cultural artifactsÑindi- cate that a universal moral law does ex- ist. ÒThe foundational line of true ethi- cal...
Ngày tải lên: 12/05/2014, 15:02
scientific american - 1995 12 - the puzzle of consciousness
... earth over the low-gain antenna. Tape-search- 50 SCIENTIFIC AMERICAN December 1995 JAILBARS, slices of images taken of the asteroid Ida, were re- turned to the earth so that the interesting parts ... heads can sometimes be tilted at an angle. This prosaic world has started to change. A few U.S. and Eu- ropean machine-tool manufacturers have introduced proto- types of a device...
Ngày tải lên: 12/05/2014, 15:03
scientific american - 1998 08 - new thinking about back pain
... star and gamma burst have been seen together. The supernova appeared in visible-light images made by Titus J. Galama of the University of Amsterdam News and Analysis24 Scientific American August ... January physicists will cre- ate a beam of muon-neutrinos in an accelerator near Tokyo and aim it at the Super-Kamiokande de- tector. Within a few years, scientists at Fermi National...
Ngày tải lên: 12/05/2014, 15:40
scientific american - 2001 01 - brave new cosmos - a special report
... inflationary gravitational waves. In 1918 Albert Einstein predict- ed the existence of gravitational waves as a consequence of his theory of gener- al relativity. They are analogues of elec- tromagnetic ... elec- tromagnetic waves, such as x-rays, ra- dio waves and visible light, which are moving disturbances of an electromag- netic field. Gravitational waves are moving disturbanc...
Ngày tải lên: 12/05/2014, 16:07
scientific american - 2003 08 - are you a hologram
... www.sciam.com SCIENTIFIC AMERICAN 21 RANDY OLSON Aurora news SCAN Mainstream climatologists perceive flaws in a paper by Willie Soon and Sallie Baliunas, the two Harvard-Smithsonian researchers who ... weaker statements about global warming. logical consultant in Kew, Australia, and for- mer head of the Australian National Climate Center. But he says that “from a purely sta- tistica...
Ngày tải lên: 12/05/2014, 16:18
In order to become competent in a foreign language, it is important for language learners not only to acquire new vocabularies and a new set of phonological and syntactic rules but also to learn what Wilson (1986)
... Không gian đ a lí c a phương ngữ Nam Bộ được xác đònh hẹp hơn. Ranh giới PNNB trùng với ranh giới -3 6- đ a lí tự nhiên Nam Bộ mà chúng ta đang quan niệm hiện nay. Đây cũng là quan điểm trong việc ... Cao Xuân Hạo [29; 120] v.v. gọi là phương ngữ Nam Bộ. Như vậy, không gian đ a lí c a tiếng miền Nam, phương ngữ miền Nam hay phương ngữ Nam được các tác giả xác đònh khá rộng. Khô...
Ngày tải lên: 17/04/2013, 16:09
Tài liệu Activity 1.1: Designing a New Type of Motorcycle doc
... collect information to make an informed decision about the type of motorcycle that will attract new riders. After you collect and analyze the information, you will be able to develop a design. ... Activity 1.1: Designing a New Type of Motorcycle The process of gathering, analyzing, and presenting requirements is a detailed type of problem solving. You regularly apply...
Ngày tải lên: 17/01/2014, 09:20