Tumor Suppressor Gene Located In Liver Cancer Cells
...with viral hepatitis," said Jirtle, a professor of radiation oncology and cancer center member. The lack of effective treatments also makes it a particularly deadly disease, he said. "As a consequence, knowing something about liver tumor formation or having a handle on how one could detect these tumors when t......oper instruments, they can distinguish between the radiation coming from decaying U-238, U-234 and Th-230 atoms... but implementing it is difficult. The amounts of radiation produced are minimal, and even small measurement errors can lead to big errors in estimating age. To...Heat-loving Microbe Repairs Its DNA With Light
...rmal habitats. For example, are we to infer thatUV radiation is a significant threat to survival in these high-temperature environments?" On one hand, it would seem logical that S. acidocaldarius , likemany organisms, should use the energy of the abundant, visibleportion of the sun's spectrum to reverse the h...Stronger Evidence That Global Climate Change Can Reduce The Variety Of Life
... butCronin and Raymo propose that changes in solar radiation initiate a chainreaction that reduces the productivity of surface ocean planktoncommunities. This in turn leads to less food resources settling through thewater to the sea floor, ultimately limiting the species that can survive inthe bottom community...Prostate Cancer's Aggressiveness May Be Predicted Early By The Ratio Of Free To Total PSA
... waiting, surgery to remove a localized cancer, or radiation therapy. Each has advantages and disadvantages. Radiation and surgery may be associated, in some cases, with complications including impotence and incontinence. Watchful waiting means living with cancer and possibly missing an opportunity for cure. ...Hot 'Lanta: NASA, School Kids Team To Study How Trees Help Cities Keep Their Cool
...is energy at longer wavelengths - thermal infrared radiation - that the atmosphere absorbsrather than passing b...parkinglots and roofs soak up virtually all of the radiation that falls on them and reradiate it as heat. The NASA Lear 23 will carry ATLAS plus a standard 9x9-...Study Focuses On How Plants Help Toxic Pollutants Travel Around The World
...rtance of temperature, relative humidity and solar radiation (ultravioletlight) are difficult to evaluate because all three factors vary simultaneouslyand often are dependent upon each other. "In this, we can control most of the parameters. In a natural system,that gets mixed up. We can avoid some of t...Scientists To Study Effects Of Global Warming On Wetlands
...etween various factors such as the amount of solar radiation reflected back into the air and its effect on carbon production and net ecosystem productivity. "Right now scientists don't know what's happening with the energy budget of ecosystems," said Chen. "If we can tell whether the energy budget is i...Low Oxygen, Key To Fetal Development, Also Offers Cancer Clues
...like those found deep inside a largetumor, because radiation and anti-cancer drugs target cells thatare dividing. Scientists like Ludlow someday hope to break downthis protective hypoxic barrier and make these cells morevulnerable to treatment. Ludlow's work is sponsored by the National Institutes ofHealt...Report Notes Difficulties In Eliminating E. Coli O157:H7 From Food Supply
...eat pasteurization for milk and juicesand ionizing radiation for meat (if approved) and fresh fruits and vegetables. Ionizing radiation is a promising technology because it can eliminate E. coliO157:H7 while maintaining the raw characte...Study Shows Hereditary Legacy Of Radiation Exposure
...ed the world's largestexperiment on the effects of radiation on humans, people have puzzled overnot only just w...environmentally relevant" assay -- usingamounts of radiation that compares to what a person might receive duringradiation therapy for cancer -- confirms what the...Biogenic Emissions Higher Than Expected Over African Savanna
...aft measured winds, temperatures, water vapor, and radiation from the visible and invisible spectrum, in addition to NOx, ozone, and several other chemical compounds. Volatile organic compounds were measured by aircraft and ground instruments. A 60-meter (200-foot) tower installed by NCAR in collaboration wit...Remote Cloud Observatory Tracks El Niño Changes
...n effort to evaluate and developcloud property and radiation algorithms for the global climate models, and tobe...diative fluxes through theatmosphere and reflected radiation from the Earth's surface are also collected.Local weather observers collect temperature, humidity, w...Maillinckrodt Medical Licenses Invention For Concentration Of Rhenium Radioisotopes
...bit restenosis after balloon angioplasty, ionizing radiation has been found to be one of the only non-surgical ...rchers at the laboratory, usesrhenium-188 for the radiation of the coronary arteries after angioplasty. Rhenium treatment following balloon angioplasty cuts the...Amphibian Mortality Due To UV Radiation
...mbryos of long-toed salamanders shielded from UV-B radiation bymylar filters to unshielded embryos. They found...d quality, which also canaffect the amount of UV-B radiation reaching amphibians. UV-B radiation also may impair disease defense mechanisms, makingamphib...Jefferson Researchers Find Correlation Between Gene And Endometrial Cancer
...r endometrial cancer. The patients had no prior radiation or chemotherapy. They found that five years a...ancer, and who haven’t had chemotherapy or radiation before surgery, the presence of Rb2 is associated with a higher risk of dying independent of the ...New Imaging Technique Pinpoints Dead Heart Muscle
... are that it does not require exposure to ionizing radiation and canbe done in any of the large number of hospitals with MRI scanners. MRI scanners are quite numerous and therefore accessible to largenumbers of patients, they say. And MRI performed during the same study canprovide high resolution anat......), and to solve its structure using synchrotron radiation and multiple wavelengths diffraction (MAD) methods at the DESY/Hamburg (Dr. Hans Bartunik). The results of this study have now been published by Maskos et.al. in the Proceedings of the National Academy of Sciences, USA (1998), 95 ...... could be used for nightvision---in which infrared radiation predominates---and ultraviolet detectionjust as well as for full daylight viewing. "The human eye is an engineeringmarvel, and no one has ever been able to duplicate it," he said. "But theseoptoelectronic devices will eventually be able to simulate......ding action on proposals to listbenzidine dyes, UV radiation from sunlamps and the sun, cadmium, the drugtamoxifen, butadiene, sulfuric acid mists and tobacco whether smoked or chewed,as "known human carcinogens" in the federal government's Report on Carcinogens. "Final" comment on a proposal to remove sac...