Save
Email
Print
Share
RSSBrowse News Stories
441 to 450 of 2,137 stories
view headlines only
-
Crab Pulsar Beams Most Energetic Gamma Rays Ever Detected from a Pulsar
October 6, 2011 — Astrophysicists have detected pulsed gamma-ray emission from the Crab pulsar at energies far beyond what current theoretical models of pulsars can explain. With energies exceeding 100 billion ... > full storyMore: -
Increasingly Precise Data on Radiation Reflected from the Arctic Sea Area
October 6, 2011 — Scientists have developed a new, globally unique method for estimating surface albedo in the Arctic sea area solely on the basis of microwave data. Its advantage over conventional optical methods is ... > full story -
Higher Radiation Dose Does Not Help Lung Cancer Patients Live Longer
October 3, 2011 — A higher dose of radiation (74 Gy) does not improve overall survival for non-small cell lung cancer that has spread to the lymph nodes, compared to the standard radiation dose (60 Gy), according to ... > full story -
Consider the Breast and Lungs When Determining Thoracic Imaging Protocols
October 2, 2011 — Carefully consider the radiation dose to the breast and lungs before deciding which CT protocol to use for thoracic imaging of individual patients, a new study ... > full story -
Researchers Identifiy More Accurate Treatment Delivery for Robotic Radiosurgery System
October 2, 2011 — A new study now reports that there is an alternative to the conventional CyberKnife treatment delivery system. This new technique uses a multileaf collimator (MLC) and can flexibly sculpt a single ... > full story -
Closing of a Collider . . . and Opening of a New Frontier: Fermilab Moves Toward New Discoveries
September 30, 2011 — Today, Fermi National Accelerator Laboratory (Fermilab) will shut down its Tevatron particle accelerator after nearly 30 years in operation. Named one of the top engineering achievements of the past ... > full story -
Space Telescopes Reveal Secrets of Turbulent Black Hole
September 29, 2011 — Supermassive black holes at the hearts of active galaxies swallow large amounts of gas. During this feast they spill a lot of their 'food', which is discharged in turbulent outbursts. An ... > full storyMore: -
Big Tobacco Knew Radioactive Particles in Cigarettes Posed Cancer Risk but Kept Quiet, Study Suggests
September 28, 2011 — Tobacco companies knew that cigarette smoke contained radioactive alpha particles for more than four decades and developed "deep and intimate" knowledge of these particles' cancer-causing potential, ... > full story -
IMRT Has Less Harmful Rectal Side Effects Than 3D-CRT for Prostate Cancer Patients, Study Suggests
September 26, 2011 — Men with localized prostate cancer treated with a newer technology, intensity modulated radiation therapy (IMRT), have more than a quarter (26 percent) fewer late bowel and rectal side effects and a ... > full story -
Cheap and Efficient Solar Cell Made Possible by Linked Nanoparticles
September 26, 2011 — Researchers have demonstrated that electrons can move freely in layers of linked semiconductor nanoparticles under the influence of light. This new knowledge will be very useful for the development ... > full story
Search ScienceDaily
Number of stories in archives: 137,427
more 
