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Radiation in Biological News

AGU journal highlights -- Aug. 6, 2009

... of this radiation, the authors conclude that the radiation was probably excited by lightning in the Martian ... Title: Emission of non-thermal microwave radiation by a Martian dust storm Authors: Christopher ... An overview of global dimming and brightening radiation from the Sun fuels life on Earth and determines ...

Jet-propelled imaging for an ultrafast light source

... a sufficiently brief pulse may terminate before radiation damage effects can start. In this way it can outrun radiation damage, always one of the fundamental limitations ... and exposures that won't subject the samples to radiation damage. Some of the patterns the researchers ...

Journal of Vascular and Interventional Radiology: New patient radiation safety guidelines

... a unique collection of new (such as radiation dose management) and previously published ... "The supplement includes 'Guidelines for Patient radiation Dose Management,' a significant new document ... and Women's Hospital in Boston, Mass. This radiation management guideline, tailored to interventional ...

Breakthrough in radiotherapy promises targeted cancer treatment

... Current radiation therapy treatment damages a patient's healthy ... tumours by using real-time images to guide the radiation beam. Real-time image-guided radiotherapy, combining radiation treatment with non-invasive MR imaging, would be ...

From cars to cancer: UH professor employs auto industry tools for tumor therapy

... will help doctors and technicians better plan radiation therapy for patients with head and neck cancer. ... professor and deputy research director of radiation physics at the University of Texas M.D. Anderson ... that hopefully will increase the accuracy of radiation therapy. "We aim to better understand tumor ...

Lithium may help radiation target cancer, spare healthy tissue

... protects the brain from damage that occurs during radiation treatments. In the May 1 issue of the Journal ... tissue from damage that may occur during cranial radiation treatments. Cranial irradiation is part of ... However, as with all treatment modalities, radiation often causes long-term side effects. In ...

Agent Orange exposure increases veterans' risk of aggressive recurrence of prostate cancer

... However in patients with Agent Orange exposure, radiation or hormone therapy to kill remaining cells may ... to patients whose primary treatment is standard radiation or brachytherapy, where rice-size radiation pellets are implanted in the prostate, rather ...

DNA repair mechanisms relocate in response to stress

... Paul Doetsch, PhD, professor of biochemistry, radiation oncology, and hematology and oncology at Emory ... related," Doetsch says. "For example, the way radiation inflicts most of its damage on DNA is through ... cells is continually under assault by heat, radiation and oxygen. Cells have an extensive set of repair ...

New simulation shows consequences of a world without Earth's natural sunscreen

... a twin over the North Pole. The ultraviolet (UV) radiation falling on mid-latitude cities like Washington, ... sunburn in just five minutes. DNA-mutating UV radiation is up 650 percent, with likely harmful effects on ... atmospheric chemical effects, wind changes, and radiation changes. The analysis has been published online ...

New tumor markers determine therapy intensity

... can also occur in babies and toddlers. Aggressive radiation and chemotherapy regimens after surgery can ... tumor will return after surgery and subsequent radiation and chemotherapy," explained Dr. Stefan Pfister, ... who will presumably respond especially well to radiation and chemotherapy. We can thus reduce ...

How increased UV exposure impacts plants

... introduced students to the impacts of ultraviolet radiation on plant populations using a readily accessible ... . The lab exercise focused on ultraviolet radiation impacts on liverwort asexual propagules, and ... reading related to impacts of ultraviolet radiation on ecological systems and humans. The experiment ...

Freezing prostate cancer does a man's body good

... control as any other treatmentincluding surgery, radiation and hormone therapybut it is less invasive and ... or freezing the entire prostate or using radiation on the entire prostate, interventional ... 'watchful waiting,' get mapped. If you're having radiation or hormone therapy or thinking about getting a ...

Ben-Gurion University of the Negev researchers develop new reversible, green window technology

... and cold seasons. In winter, short wave solar radiation is transmitted through the clear glass, and is ... The interior is heated in two ways: by long wave radiation emitted from the warm tinted pane, and by heating ... is on the interior, absorbs unwanted infrared radiation from the warmer exterior pane and helps to reduce ...

GUMC young scientist selected postdoc Fellow at National Space Biomedical Research Institute

... the Fellows examine the acute effects of space radiation exposure to determine whether there are adverse ... interaction with investigators on the NSBRI radiation Effects Team whose research is focused on determining the risks posed by space radiation exposure and on developing countermeasures to ...

42nd Mid-year Topical Meeting of the Health Physics Society

... is "Recent Advances in Planning and Response to radiation Emergencies." Approximately 400 attendees are ... IAEA manual now available for PDA or smart phone radiation myth busting Choosing the correct course of ... emergency Medical testing to determine radiation dose level The Public Health response (Monday ....

Tips from the American Journal of Pathology

... of The American Journal of Pathology . radiation therapy directed at cancer management also ... organ dysfunction, and necrosis that result from radiation treatment; however, the effects of radiation on the transplanted fat tissue had not been ...

UC Davis team refines cancer treatments to reduce potential nerve damage

... (SACRAMENTO, Calif.) While radiation treatments deliver precise doses of high-energy ... team, led by Allen Chen, assistant professor of radiation oncology, noticed a trend following treatment for ... to the hand. Specific standards for delivering radiation treatments and avoiding this critical body ...

NPL unveils new equipment to make cancer treatment safer

... Radiotherapy treats cancer, by using ionising radiation such as high-energy X-rays or electron beams, to ... is stable and accurate because delivering correct radiation doses is critical. If the dose is too low, the ... to deliver more accurate, and more effective, radiation doses to cancer patients. The new facility ...

Could vitamin D save us from radiation?

... Writing in the International Journal of Low radiation , Hayes explains that calcitriol, the active form of vitamin D, may protect us from background radiation and could be used as a safe protective agent ... Biologists and pharmacologists who specialize in radiation and health are keen to find an effective agent ...

When the ill need protection from the cure

... and tests that may involve the use of ionising radiation to detect the source and scope of an ailment. ... had expected. This comes from continued radiation accidents in radiotherapy facilities, and continued reports of unnecessary radiation doses to patients in those diagnostic ...

NIAID announces 25 new awards to develop radiation countermeasures

... new and better diagnostics and treatments for radiation exposure after a nuclear attack. Several of these ... the event of a nuclear attack, people exposed to radiation would suffer from injuries to important tissues ... will help seed basic science research in areas of radiation exposure after nuclear attack that are not ...

Checking people at airports -- with terahertz radiation

... are offered by terahertz radiation. Before this radiation can be used for this purpose, however, it has to ... so that damage to health caused by radiation can be ruled out. The exact measurement of this type of radiation has now been successfully undertaken by the ...

Unique animal species can survive in space

... world to have survived exposure to the vacuum and radiation of space. This has been established by Ingemar ... which entails extreme dehydration, and cosmic radiation were not a problem for water bears. On the other hand, the ultraviolet radiation in space is harmful to water bears, although a ...

Protecting those who heal

... raise awareness of threats, through training in radiation protection related to medical uses of X-ray imaging systems. The issue of radiation protection for medical personnel is particularly ... guidance. The procedure can cause extensive radiation exposure to cardiologists that could lead to ...

Researchers discover atomic bomb effect results in adult-onset thyroid cancer

... PHILADELPHIA radiation from the atomic bomb blasts in Hiroshima and ... of Radiobiology and Molecular Epidemiology at the radiation Effects Research Foundation (RERF) in Hiroshima. ... estimated number of excess cases attributable to radiation is 63. About 90 percent of thyroid cancer among ...

Pesticide build-up could lead to poor honey bee health

... the acaricide load in beeswax. Using gamma radiation from a cobalt 60 source housed at Penn State's ... for the bees to build their combs. They used radiation levels at the high end of that used to irradiate ... percent of the acaricides in the wax. "Gamma radiation is often used to kill viruses and other disease ...

Keeping an eye on the surroundings

... to make their observations. Terahertz (THz) radiation consists of electromagnetic waves in the ... and microwave ranges. Efficient sources of THz radiation are now available, making it possible to directly ... than in pure water. Their absorption of THz radiation at certain frequencies is thus changed. The ...

AGU journal highlights -- July 23, 2008

... that exploit the strong absorption of infrared radiation by sulfur dioxide have only recently emerged, ... data collected by the High Resolution Infrared radiation Sounder (on NOAA's Television Infrared ... Human-generated aerosol particles affect solar radiation by direct scattering and absorption, but also ...

UC San Diego researchers could help US military thwart explosive threats

... objects and monitoring different wavelengths of radiation from an object going from visible to ultraviolet ... lights and combining all of those different radiation wavelengths to identify an object. "Another ... explosives with neutrons and read the gamma radiation decay signatures to determine the chemical ...

Radiation, nanotechnology, health care and more

... some of the most important questions about radiation safety including how best to assess radiation doses from CT scans and responses to radiation emergencies when to take shelter, for instance, ...

More sensitive radiology monitoring in the Basque Country

... Her prime goal was to establish values for normal radiation situations, their origin being in natural sources of radiation: cosmic radiation from the Sun and interstellar spaces; and terrestrial radiation from radionucleids (originating in uranium or ...

CAPHOSOL relieves oral mucositis and improves quality-of-life in cancer patients

... for cancer patients undergoing chemotherapy and radiation therapy. These data will be reported in two ... by cancer patients receiving chemotherapy and radiation therapy, commented principal investigator Marilyn ... PhD, RN, CNS, ANP-C, Nurse Practitioner, Mountain radiation Oncology, Asheville, N.C. As layers of epithelial ...

Researchers find way to make tumor cells easier to destroy

... in St. Louis report. The Washington University radiation oncology researchers found that tumors have a ... likely decreases the benefit of hyperthermia and radiation as a combined therapy. By interfering with ... be made more sensitive to hyperthermia-enhanced radiation therapy. The findings are reported in the May 1, ...

Arctic ice more vulnerable to sunny weather, new study shows

... because there is now less ice to reflect solar radiation back into space. As a result, the presence or ... much darker than the ice, absorb the Sun's radiation instead of reflecting it. This warms the water ... ice, which in turn leads to more absorption of radiation and still more warming. "Our research ...

Ceramic, heal thyself

... radiation. "If you want a material to withstand radiation over millennia, you can't expect it to just sit ... engineering mobile defects in ceramics to enhance radiation tolerance," Weber said. He noted that materials ... The researchers also simulated the impact of radiation on zircon, a ceramic that is a candidate for ...

Prototype terahertz imager promises biochem advances

... system that detects naturally occurring terahertz radiation with unprecedented sensitivity and resolution. ... homeland security instruments. Terahertz radiation falls between microwaves and infrared radiation on the electromagnetic spectrum, with frequencies ...

Missions to Mars

... has chosen the GSI accelerator facility to assess radiation risks that astronauts will be exposed to on a ... atmosphere and magnetic field. In general, radiation can damage human cells and their genetic ... research could then be used to develop optimized radiation shields for space exploration, which are a ...

Distance learning course in radiation oncology for cancer treatment

... over time. The course - in the speciality of radiation oncology - is being spearheaded in the Asia and ... region through partners working with the IAEA. radiation oncologists are physicians skilled in the use of ... modules are specialist topics needed by trainee radiation oncologists, and these topics may not have local ...

Needle-size device created to track tumors, radiation dose

... into tumors to tell doctors the precise dose of radiation received and locate the exact position of tumors ... is needed to tell doctors the exact dosage of radiation received by a tumor," Ziaie said. The ... these methods are difficult to use during radiation therapy, are costly and sometimes require X-rays, ...

Regional nuclear conflict would create near-global ozone hole, says CU-Boulder study

... study author. The soot would absorb enough solar radiation to heat surrounding gases, setting in motion a ... loss from the release of gases like CFCs. UV radiation has been shown to be particularly damaging to ... Climate Model 3 with the Community Aerosol and radiation Model for Atmospheres developed by CU-Boulder and ...
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