HOME >> MEDICINE >> NEWS
Physics tip sheet #19 June 26, 2002

1) Major climate models don't represent reality
R. B. Govindan, D. Vyushin, A. Bunde, S. Brenner, S. Havlin,. H.-J. Schellnhuber
Physical Review Letters (Print issue: July 8, 2002)

Seven leading global climate models were tested for certain statistical properties that reflect real climate behavior. None of the models correctly reproduce these properties but the models perform better when they incorporate the effect of aerosols rather than just greenhouse gases. Scenarios that only consider greenhouse gases tend to overestimate climate trends. The study provides an independent evaluation that aerosols must be considered to realistically model climate change as claimed in the recent IPCC Climate Change report.

Journal article: http://link.aps.org/abstract/PRL/v89/e028501

2) Nanospintronics: a single-spin transistor
M. Ciorga, A. Wensauer, M. Pioro-Ladriere, M. Korkusinski, J. Kyriakidis, A. S. Sachrajda, P. Hawrylak
Physical Review Letters (Print issue: June 24, 2002)

Spintronics is a relatively new field in which the electron's spin, not just its charge, can be exploited in devices and circuits. The ultimate spintronics degree of control would come from controlling a circuit at the level of a single spin. These physicists are the first to create a prototype of a single-spin transistor, which consists of a quantum dot connected to spin-polarized leads. The impressive control of spin achieved at the quantum dot may play a role in the future solid state form of quantum computing where the unit of quantum manipulation, the qubit might consist of specially prepared spin states.

Physics News Update: http://www.aip.org/enews/physnews/2002/split/595-2.html
Journal article: http://link.aps.org/abstract/PRL/v88/e25
'"/>


Contact: David Harris
harris@aps.org
301-209-3238
American Physical Society
26-Jun-2002


Page: 1 2 3

Related medicine news :

1. Physics World Digest August 2004: Eye surgery sharpens up
2. Physics and medicine: at Erice the new perspectives of an ancient cooperation
3. Physics designed to shock
4. Physics tip sheet #35
5. Physics and medicine in San Diego
6. Physics tip sheet #11 - May 1, 2002
7. Physics tip sheet #9 April 17, 2002
8. Princeton Plasma Physics Laboratory collaborates with USDA in development of pasteurization process
9. March/April 2005 Annals of Family Medicine tip sheet
10. Annals of Internal Medicine tip sheet for March 15, 2005
11. Feb. 15, 2005, Annals of Internal Medicine tip sheet

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/13/2017)... ... October 13, 2017 , ... Lori R. Somekh, founder of the ... national organization of elder law and special needs planning attorneys. “Membership in ElderCounsel helps ... provides a forum to network with elder law attorneys nationwide,” said Somekh. , ...
(Date:10/13/2017)... ... 2017 , ... Many families have long-term insurance that covers care for a ... waiver for care if the client has a cognitive impairment diagnosis. , “What ... is often waived, so the benefits from their insurance start immediately,” said Mechell Vieira, ...
(Date:10/13/2017)... York, NY (PRWEB) , ... October 13, 2017 , ... ... influential people in business to advocate for action towards gender equality at their inaugural ... views from around the globe, and reached a social audience of over 3 million. ...
(Date:10/13/2017)... ... 13, 2017 , ... Yisrayl Hawkins, Pastor and Overseer at The House of ... popular and least understood books in the Holy Scriptures, Revelation. The Book of Revelation ... scholars for centuries. Many have tossed it off as mere rubbish, but Yisrayl Hawkins ...
(Date:10/13/2017)... ... October 13, 2017 , ... ... Software Development, has been awarded a contract by the Center for Medicare and ... aims to accelerate the enterprise use of Agile methodologies in a consistent and ...
Breaking Medicine News(10 mins):
(Date:10/10/2017)... received FDA 510(k) clearance in May 2017 for its highly anticipated ... for endoscopy environments. An innovative secondary monitor solution, ZeroWire Mobile ... the improvement of patient outcomes, procedural efficiency, and the lowering of ... ... By ...
(Date:10/7/2017)... 6, 2017   Provista, a proven leader ... billion in purchasing power, today announced a new resource ... The Newsroom is the online home for case ... expert bios, news releases, slideshows and events. ... wealth of resources at their fingertips, viewers can also ...
(Date:10/4/2017)... , Oct. 4, 2017  South Korean-based healthcare product ... training aide "cprCUBE" on Kickstarter. The device will educate ... cardiac arrests with better efficiency compared to the dated ... real-time feedback on efficacy of the compression for a ... has a goal to raise $5,000. ...
Breaking Medicine Technology:
Cached News: