radiation

Alternatives for radiation of low-grade brain tumors

harminka — Tue, 07 Oct 2008 02:56:11 -0500

Chemotherapy may help delay cranial radiation and minimize damaging side effects

Male Infertility, Cell Phone Radiation Connected: Study

Iria — Sun, 21 Sep 2008 00:21:51 -0500

Recently, a cancer center director warned his staff about the risks of cell phone radiation as it relates to cancer. But as early as 2006, I wrote about a study linking cell phones with infertility. You'd think someone else would have run a confirming study before now, but I guess not.

Testing method for finger ring dosemeters has proven its effectiveness

harminka — Fri, 20 Jun 2008 09:08:08 -0500

Finger ring dosemeters are used at diverse workplaces having ionizing radiation, e.g. in medicine and industry, in order to check whether the effective dose limt values are adhered to. The dosemeters used to measure beta radiation have been subjected to an annual quality control by the PTB for six years now. Since then, all dosimeter models used in Germany have passed these controls.

Could exposure to low doses of radiation cure our ills?

harminka — Thu, 19 Jun 2008 01:21:00 -0500

For decades, we have been told that exposure to radiation is dangerous. In high doses it is certainly lethal and chronic exposure is linked to the development of cancer. But, what if a short-term controlled exposure to a low dose of radiation were good for our health.

Secrets of Newest Form of Carbon

harminka — Wed, 11 Jun 2008 04:02:58 -0500

Using one of the world’s most powerful sources of man-made radiation, physicists from UC San Diego, Columbia University and Lawrence Berkeley National Laboratory have uncovered new secrets about the properties of graphene—a form of pure carbon that may one day replace the silicon in computers, televisions, mobile phones and other common electronic devices.

Manipulation of molecule protects intestinal cells from radiation

harminka — Wed, 04 Jun 2008 14:01:53 -0500

A new study identifies a signaling molecule that plays a major role in radiation-induced intestinal damage. The research, published by Cell Press in the June issue of the journal Cell Stem Cell, may lead to new strategies for protecting normal tissues from radiation during cancer therapies.

Experts tackle shipment issues for beneficial radiation sources

harminka — Fri, 16 May 2008 15:13:50 -0500

Delays and denials of shipments involving regulated radioactive materials used in medicine and industry are of growing concern to safety and industry experts. Meeting in Rome this week at an IAEA workshop, they agreed on an action plan for the Mediterranean region that seeks to ease hardships for hospitals, research centres and organizations that rely on timely delivery of beneficial radiation sources.

Rare cosmic rays are from far away

harminka — Fri, 21 Mar 2008 12:39:49 -0500

Final results from the University of Utah’s High-Resolution Fly’s Eye cosmic ray observatory show that the most energetic particles in the universe rarely reach Earth at full strength because they come from great distances, so most of them collide with radiation left over from the birth of the universe.

Artificial event horizon generates hawking radiation

harminka — Wed, 12 Mar 2008 14:15:18 -0500

Stephen Hawking should be pleased. The first signs of an effect the British physicist predicted more than 30 years ago – known as Hawking radiation – have finally materialised from the simulated edge of a black hole.

Predicting the radiation risk to ESA’s astronauts

harminka — Wed, 13 Feb 2008 11:16:12 -0600

European scientists have developed the most accurate method yet for predicting the doses of radiation that astronauts will receive aboard the orbiting European laboratory module, Columbus, attached to the ISS this week.

Timing in use of breast shields in children can reduce MDCT radiation dose

harminka — Wed, 13 Feb 2008 08:08:51 -0600

Using breast shields during pediatric chest MDCT reduces radiation dose and minimally increases image noise, according to a recent study conducted by researchers at Duke University Medical Center in Durham, NC and the University of Arkansas for Medical Sciences and Arkansas Children’s Hospital in Little Rock.

'T-ray' breakthrough signals next generation of security sensors

harminka — Tue, 05 Feb 2008 09:23:40 -0600

A new generation of sensors for detecting explosives and poisons could be developed following new research into a type of radiation known as T-rays, published today (3 February) in Nature Photonics.