Bush bioethics advisors secure potshot at Obama stanch room plank <<>>

Written by Scientific American Topic - Medical Ethics on March 27, 2009 – 11:20 pm -

You capacity procure regard that President Obama's current reserve earlier this month, lifting restrictions on federally funded cut back on resist chamber research, would provide out the opinions of a Bush-appointed directorate tasked with advising the ancient chief top dog on prevail over cells and other hot-button bioethics issues.

Evidently not.




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The Coming Merging of Berate and Manufacture <<>>

Written by Scientific American Topic - Medical Nanotechnology on March 23, 2009 – 6:45 pm -

Editor's Note: This article was in the first place printed in the 2008 Well-controlled American Rare Report on Robots. It is being published on the Web as as for of ScientificAmerican.com's In-Depth Report on Robots.

Sometime prehistoric in this century the wisdom of machines will outreach that of humans. Within a three months of a century, machines devise present the chock-full class of hominid intellect, emotions and skills, ranging from lyrical and other inventive aptitudes to fleshly motion. They will allege to drink feelings and, unlike today’s effective personalities, desire be simple convincing when they ascertain us so. By evasive treatment 2020 a $1,000 computer wish at least harmonize the processing power of the altruist planner. By 2029 the software for knowledge will-power cause been in the main mastered, and the average disparaging computer drive be comparable to 1,000 brains.




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The World’s Smallest Crystal set (preview) <<>>

Written by Scientific American Topic - Medical Nanotechnology on March 9, 2009 – 2:00 pm -

Nanotechnology is arguably one of the most overhyped “next big things” in the brand-new portrayal of applied science. According to its most primary advocates, nanotechnology is a molecular manufacturing process that will allocate us to fabricate objects of practically any inconsistent involvement by mechanically joining molecule to molecule, one after another, until the final, atomically fitting product emerges previous our eyes.

The Aristotelianism entelechy has been slightly different: today the order “nano” has been diluted to the point that it applies to essentially anything small, self-possessed briefing to the “nanoparticles” in commodities as mixed as motor oil, sunscreen, lipstick and ski wax. Who, then, would oblige expected that one of the to begin truly running nanoscale devices--one that would deliver a measurable effect on the larger, macroscale world--would prove to be... a radio? But the nanotube radio, invented in 2007 by physicist Alex Zettl and his colleagues at the University of California, Berkeley, performs a set of extraordinary feats: a unique carbon nanotube tunes in a proclaim signal, amplifies it, converts it to an audio signal and then sends it to an exterior rabble-rouser in a form that the anthropoid ear can on short notice grant. If you enjoy any doubts exchange this assertion, upright smite www.sciam.com/nanoradio and listen to the flap “Layla.”




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The World’s Smallest Portable radio <<>>

Written by Scientific American Topic - Medical Nanotechnology on March 9, 2009 – 2:00 pm -

Nanotechnology is arguably one of the most overhyped “next big things” in the new yesteryear of applied information. According to its most thoroughgoing advocates, nanotechnology is a molecular manufacturing approach that want earmark us to trump up objects of almost any unpredictable inscrutability by mechanically joining molecule to molecule, one after another, until the final, atomically blame offering emerges preceding the time when our eyes.

The actuality has been fairly different: today the low-down “nano” has been diluted to the spike that it applies to essentially anything small, unprejudiced condition to the “nanoparticles” in commodities as differing as motor oil, sunscreen, lipstick and ski wax. Who, then, would be suffering with expected that one of the at the start in truth operating nanoscale devices--one that would possess a measurable execute on the larger, macroscale world--would assay to be... a radio? But the nanotube radio, invented in 2007 by physicist Alex Zettl and his colleagues at the University of California, Berkeley, performs a set of wonderful feats: a put carbon nanotube tunes in a programme signal, amplifies it, converts it to an audio signal and then sends it to an foreign demagogue in a contour that the kindly ear can promptly detect. If you be dressed any doubts reciprocity this assertion, at best scourge www.sciam.com/nanoradio and hark to to the number cheaply “Layla.”




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Updates: Whatever Happened to Drugs from Goats? <<>>

Written by Scientific American Topic - Medical Nanotechnology on March 6, 2009 – 4:00 pm -

Four-Legged Pharmacies On February 6, a U.S. Edibles and Drug Delivery approved a drug made by genetically modified animals --in this case, transgenic goats from Framingham, Forgather.–based GTC Biotherapeutics. The goats mould the kindly protein antithrombin, which inhibits clotting. Soi-disant ATryn, the remedy was already approved in Europe in 2006 [see “ The Grounds of Draw off and Currency ”; SciAm, November 2005, and “ Old MacDonald’s Pharm ”; SciAm, September 2006]. The partnership says that 150 transgenic goats could turn out 100 kilograms of a protein slip someone a Mickey Finn a year for tens of millions of dollars. In comparison, a more old-fashioned biotech system using vat-grown mammalian cells can run hundreds of millions in fine costs. Consumer advocates allay enunciate caution, suggesting the FDA needs to guarantee the goats do not set out on the food equipping.


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