scientific american - 2001 11 - genetic traps for viruses

... log. Copyright 2001 Scientific American, Inc.Copyright 2001 Scientific American, Inc. 42 SCIENTIFIC AMERICAN NOVEMBER 2001 former president of the society, during the opening night’s din- ner. Other ... educational cure-all. contents november 2001 SCIENTIFIC AMERICAN Volume 285 Number 5 features 56 Flu virus: genome- based drug target www.sciam.com SCIENTIFIC AMERICA...

Ngày tải lên: 12/05/2014, 16:10

... created In-Q-Tel, a private not -for- profit venture-capital firm whose funding comes from taxpay- er dollars. The CIA has set up companies before, but they have been primarily undisclosed fronts for ... angular information, thereby yielding a so-called conformal map. To flatten the cortex, Hurdal takes anatomical information from a high-resolu- tion, 3-D MRI scan and feeds it into her pro-...

Ngày tải lên: 12/05/2014, 16:09

... of econom- ics.Ó Nevertheless, in a full world of in- ternationally mobile capital, our adher- ence to it for policy direction is a rec- ipe for national disintegration. SCIENTIFIC AMERICAN November ... countries that sanc- tion the use of purse-seine nets in tuna Þshing and of leg-hold traps in trap- ping. Such punishments seem an in- appropriate use of state power, howev- er. The...

Ngày tải lên: 12/05/2014, 14:50

... GEL SEROGROUP A Neisseria meningitidis III-1 I-1 I-2 I-3 I-4 I-5 I-6 I-7 I-8 I-9 II-1 II-2 II-3 II-4 III-2 III-3 III-4 IV-1 IV-2 IV-3 IV-4 CLONES SUBGROUP 4 SUBGROUP 1 SUBGROUP ... and mem- brane-bound lipooligosaccharides com- mon to N. lactamica and N. meningi- tidisÑmay confer immunity. This mechanism of immunity could explain the Þve- to 12-year intervals be- tween ... OCE...

Ngày tải lên: 12/05/2014, 14:59

... capabil- ities of the applications in which they are embedded: a word-processing mac- ro, for example, might use the search- and-replace function in conjunction with the word-counting command to ad- just ... tax-free municipal bonds to high-yield- ing taxable investments. Economists may get a slight- ly better handle on these points, thanks to the tax counterrefor- mation of 1993, which res...

Ngày tải lên: 12/05/2014, 15:02

... ener- gy constantly to the balls, allowing rip- ples and other features to form at the surface. Different patterns form as the vibra- tion is varied. When the powder is shak- en at about two-and-a-half ... People who used to live se- cluded in Welsh-speaking valleys or on Navajo-speaking mesas are now con- nected to English-dominated informa- tion on the airwaves and the Net. Uni- versal tran...

Ngày tải lên: 12/05/2014, 15:16

... produced valuable information that promises huge gains for medicine. Boosters of the food genome plan maintain it could lead to comparable leaps forward for agricul- ture by making it easier to produce ge- netically ... that a 16-year-old boy in Madagascar contracted a strain of bu- bonic plague that resisted all modern treatments. Before the advent of antibi- otics, the plague claimed ma...

Ngày tải lên: 12/05/2014, 15:31

... it, they reenacted one of those Tranquilli- ty-base-here-the-Eagle-has-landed, NASA-flight-control jubilation scenes. Laima is the Latvian goddess of good fortune, and the name was a homage to the ... for use in bal- listic-missile intercep- tors; a space-based pro- jectile of less than a kilogram could acceler- News and Analysis50 Scientific American November 1998 DARPA ETO/CALIFORNIA...

Ngày tải lên: 12/05/2014, 15:48

... growth factor is spe- cific for pig receptors. The longest sur- vival times in monkeys for life-support- ing pig kidneys and hearts are 39 days and 78 days, respectively (median kid- ney survival is ... Ray- onnement Électromagnétique (LURE), dormant for more than a month for its summer respite, was never fired up to begin probing the properties of high-tem- perature superconductors or...

Ngày tải lên: 12/05/2014, 15:59

... Social Forces, March 1999. The ”South“ includes the 11 states of the Confederacy. The eligible electorate excludes black men before 1870, most women before 1920, 1 8- to 20-year-olds before 1972, ... Broadway plays for pay-per-view and streaming on the Inter- net. But no matter how realistic a virtual-museum tour, walk on the Great Wall or image of a fire-eat- ing street performer may...

Ngày tải lên: 12/05/2014, 16:06