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  April 18, 2005

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 Explosions In Space May Have Initiated Ancient Extinction On Earth - SpaceDaily  Left:  Scientists say that a ten-second burst of gamma rays from a massive star explosion within 6,000 light years from Earth could have triggered a mass extinction hundreds of millions of years ago. In this artist's conception we see the gamma rays hitting the Earth's atmosphere. (The expanding shell is pictured as blue, but gamma rays are actually invisible.) The gamma rays would destroy the ozone layer, breaking apart and ultimately converting ozone molecules into brown, smog-like nitrogen dioxide. With the ozone layer damaged for up to five years, harmful ultraviolet radiation from the Sun would kill smaller life-forms and disrupt the food chain. Scientists say that a gamma-ray burst might have caused the Ordovician extinction 450 million years ago, some 200 million years before dinosaurs. Image credit: NASA.  Gamma-ray bursts in our Milky Way galaxy are indeed rare, but the scientists estimate that at least one nearby likely hit the Earth in the past billion years. "What's most surprising is that just a 10-second burst can cause years of devastating ozone damage,"
When The Lights Came On In The Universe - SpaceDaily  Left:  Hubble Ultra Deep image of the Universe in its infancy. 1024 Desktop available  The first stars lit up when the Universe was between 200 and 500 million years old, a team of British and American astronomers suggested on Wednesday. The so-called Big Bang which created the Universe occurred about 13.7 billion years ago. Last month, research announced by NASA and the European Space Agency (ESA) proposed that the Universe evolved into roughly its present form by the time it was five billion years old, far sooner than previously thought. 

Old Star's "Rebirth" Gives Astronomers Surprises - SpaceDaily  Astronomers using the National Science Foundation's Very Large Array (VLA) radio telescope are taking advantage of a once-in-a-lifetime opportunity to watch an old star suddenly stir back into new activity after coming to the end of its normal life. Their surprising results have forced them to change their ideas of how such an old, white dwarf star can re-ignite its nuclear furnace for one final blast of energy. Computer simulations had predicted a series of events that would follow such a re-ignition of fusion reactions, but the star didn't follow the script - events moved 100 times more quickly than the simulations predicted. "We've now produced a new theoretical model of how this process works, and the VLA observations have provided the first evidence supporting our new model," said Albert Zijlstra, of the University of Manchester.    
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Alzheimer's Disease:
4/18/2005: Drug 'may slow Alzheimer's'  - BBC

Biosciences:
4/18/2005: Laser beams sort stem cells by springiness - New Scientist
4/18/2005: New Research On Multiple Vs Single Births May Offer New Approaches For Infertility
 - Science Daily
4/18/2005: Strawberry Latent Ringspot Virus Found In North America - Science Daily
4/18/2005: Vital Step In Cellular Migration Described By Medical Researchers - Science Daily
4/18/2005: Stem Cells Give Horses a Hoof Up  - Wired News
4/18/2005: GMO Rice Sold in Central China Markets -Greenpeace ... - FirstScience
4/18/2005: Deorbit the Space Shuttle: Stem Cell Rescue Novel Publication ... - Washington Post
4/18/2005: Champion endurance horse cloned  - BBC
4/18/2005: Japan in plan to expand whaling  - BBC

Climate, Environment:
4/18/2005: Volcano erupts on already shaken Sumatra - MSNBC
4/18/2005: Land near Grand Canyon to be protected - MSNBC
4/18/2005: Coral survived tsunami battering  - Nature
4/18/2005: Scientists Unravel Midwest Tornado Formation - Science Daily
4/18/2005: Teens Believe Oral Sex Is Safer, More Acceptable To Peers - Science Daily
4/18/2005: Oil Industry Could Save Billions By Forecasting Seabed Changes - SpaceDaily
4/18/2005: Surprises Lurk in Satellite Snaps  - Wired News
4/18/2005: Possible El Nino return may hit world's farmers hard ... - FirstScience
4/18/2005: Ludhiana police launches special drive to check rising auto-pollution ... - FirstScience
4/18/2005: Truck Manufacturers Cry 'Foul' Over EPA Emissions Standards ... - FirstScience
4/18/2005: Grassroots Fight On Clean Air ... - CBS

Computers:
Devices
4/18/2005: Notebook Mouse Roundup  - Wired News
4/18/2005: A Game for Time Travelers  - Wired News
4/18/2005: UN video game makes hunger point  - BBC
4/18/2005: iPod sales fuel Apple profit leap  - BBC

Communications
4/18/2005: Robot plane ready to connect your call?
  - C/Net
4/18/2005: Haiti rolling out 3G network
  - El. Engr. Times

Technology

PC's

Internet
4/18/2005: Yahoo offers free hosting to small businesses  - C/Net
4/18/2005: Daily Kos Swings for the Fences  - Wired News
4/18/2005: Bogus blogs snare fresh victims  - BBC
4/18/2005: Warnings of net security bugs  - BBC
4/18/2005: Online archive moves step closer  - BBC

Miscellaneous
4/18/2005: Red Hat tests dual-core support  - C/Net
4/18/2005: Deadline drama for Apple, Microsoft OSes  - C/Net
4/18/2005: Microsoft plugs critical holes in Windows  - C/Net
4/18/2005: Grouper tests copyright limits - L. A. Times
4/18/2005: Apple's Tiger software roars April 29  - CNN
4/18/2005: Copyright Reform to Free Orphans?  - Wired News
4/18/2005: Music Biz Sues High-Speed Traders  - Wired News

Energy:
4/18/2005: Greenpeace urges action on nuke ships ... - FirstScience

Health:
Cardiovascular
4/18/2005: Medical Researchers Say Statins, Other Cholesterol-Depleting Agents Affect Hypertension - Science Daily
4/18/2005: Findings For Racial Sub-groups Show Diuretics Work Better Than Newer Medicines For High Blood Pressure - Science Daily

Cancer  
4/18/2005: Cancer test stretches limits - MSNBC
4/18/2005: Mayo Clinic Study Shows Advanced Prostate Cancer Previously Considered Inoperable May Be Operable, Curable - Science Daily
4/18/2005: NCI Researchers Confirm The Effectiveness Of Immunotherapy Approach To Treating Melanoma - Science Daily
4/18/2005: UK Asians' low breast cancer risk  - BBC

Infectious
4/18/2005: Pandemic-causing 'Asian flu' accidentally released - New Scientist
4/18/2005: Ambulances 'facing MRSA pressure'  - BBC
4/18/2005: Quick guide: MRSA Facts and figures about the infection

Non-Infectious

Miscellaneous
4/18/2005: Balding men given nanotechnology hope - L. A. Times
4/18/2005: San Francisco Study Offers Insight Into Human Circadian Rhythms - Science Daily
4/18/2005: Genetic therapies slow to produce breakthrough treatments ... - FirstScience
4/18/2005: Day on duty On the road with an Oxford ambulance crew  - BBC

History, Anthropology:
4/18/2005: Explosions In Space May Have Initiated Ancient Extinction On Earth - SpaceDaily
4/18/2005: Colonial armor found in Jamestown pit - MSNBC
4/18/2005: Exhibit aims for the real George Washington - MSNBC
4/18/2005: Gene project will map humans' global spread - New Scientist
4/18/2005: Geographic Society Is Seeking a Genealogy of Humankind - Nat'l. Geo. News

Miscellaneous:
4/18/2005: Half of U.S. taxpayers filing online  - C/Net
4/18/2005: LexisNexis flap draws outcry from Congress  - C/Net
4/18/2005: China: Offshoring king?  - C/Net
4/18/2005: India's dominance over?  - C/Net
4/18/2005: Laptop-triggered mines heading to Iraq  - C/Net
4/18/2005: LexisNexis acknowledges more ID theft  - CNN
4/18/2005: Secure your personal network  - CNN
4/18/2005: Is your computer vulnerable?  - CNN
4/18/2005: Wanted: Women to work in Antarctica - MSNBC
4/18/2005: Russian rockets to launch from South American base - New Scientist
4/18/2005: Center To Protect The Nation's Computer Infrastructure From Cyberattacks - Science Daily
4/18/2005: Keeping New Mexican Peppers Hot In The World Market - Science Daily
4/18/2005: Billions In Cost Estimated For Firefighter Injuries - Science Daily
4/18/2005: Dot-Con Job - Science Daily
4/18/2005: Retiring Well 2005 - Science Daily
4/18/2005: Focus on Social Security - Science Daily
4/18/2005: Tax tips - Science Daily
4/18/2005: Adding up your tax bill - Science Daily
4/18/2005: Calculator - Science Daily
4/18/2005: Taiwan To Mass Produce Supersonic Anti-Ship Missiles: Report
 - SpaceDaily
4/18/2005: Pakistani Nuclear Scandal Threatens US Alliance
 - SpaceDaily
4/18/2005: Hezbollah UAV Flies Over Northern Israel
 - SpaceDaily
4/18/2005: 
 Russia Looks to Make IT its 'Next Natural Resource'  - Wired News
4/18/2005: The New Game of Tag
 - MSNBC
4/18/2005: Sharing ideas Why scientists and technologists must work together
  - BBC
4/18/2005: Security scare hits HSBC's cards
  - BBC
4/18/2005: Embracing change US politicians turn to podcasts to reach voters
  - BBC
4/18/2005: GSK investors bring Paxil lawsuit
  - BBC

Neurosciences:
4/18/2005: The Child Who Would Not Speak a Word  - NY Times
4/18/2005: Obesity And Insomnia Linked By Excitability Of Brain Cells - Science Daily
4/18/2005: Dog study 'could help paralysed'  - BBC
4/18/2005: Why risk-taking men are a turn-off for women  - BBC

Physics and Astronomy:
4/18/2005: Nickel nuclei yield magic finding PhysicsWeb
4/18/2005: Era Of Galaxy And Black Hole Growth Spurt Discovered
 - Science Daily
4/18/2005: Scientists Track Collision Of Powerful Stellar Winds
 - SpaceDaily
4/18/2005: Scientists Probe The Mysteries Of Space With Latest Supercomputers
 - SpaceDaily
4/18/2005: Surfing The Wavelengths To Find Habitable Planets
 - SpaceDaily
4/18/2005: Griffin: Shuttle Can Fix Hubble
  - Wired News
4/18/2005: Relic star poses cosmic puzzles
  - BBC

Prolongevity
4/18/2005: Muscle DNA Damage Initiates Physical Aging - Science Daily
4/18/2005: Olive Oil + Wine = Immortality
  - Wired News
4/18/2005: Never too old- man aged 100 studies computing  - BBC

Robotics:
4/18/2005: Shape-shifting tetrabots tumble into action - New Scientist

Space:
4/18/2005: Michael Griffin set to become NASA boss - New Scientist
4/18/2005: Solar Sail Technology Could Use Sun's Energy For Future Space Missions
 - Science Daily
4/18/2005: NASA Chief Nominee Pledges Fresh Look at Hubble and CEV
 - Space.com
4/18/2005: Asteroid Threat Scale Revised
 - Space.com
4/18/2005: Clarissa Explains it All
 - Space.com
4/18/2005: New Asteroid Threat Scale Launched ...
 - FirstScience
4/18/2005: Robot can't save Hubble, NASA nominee says ...
 - FirstScience
4/18/2005: Nominee Backs a Review Of NASA's Hubble Decision: Physicist Vows to Spur Work on New Spacecraft ...
 - Washington Post
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Technology:
4/18/2005: LEDs still too costly for flat-panel TVs, says Osram exec  - El. Engr. Times
4/18/2005: The world's smallest motor - MSNBC
4/18/2005: Straight to Video   - Technology Review
4/18/2005: Technology in Extreme Places: Underwater  - Wired News

  



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