Nuclear waste disposal: A safer solution?
...n organic materials, and they can better withstand radiation as well. "For applications in nuclear waste and nuclear medicine, organic exchangers can only do part of the job," he says," because radioactivity may destroy the carbon-carbon bonds, which are essential in organic compounds." Clearfield is eager to...X-ray crystallography at Advanced Photon Source
... of the most important applications of synchrotron radiation that will be pursued at Argonne is multiple wavelength anomalous diffraction, known as MAD phasing. This is a powerful technique used to more accurately image a protein molecule from a crystal. It does this by extracting so-called phase data from X......utionary genetics, said Randy Jirtle, professor of radiation oncology at Duke University Medical Center. Their own research using nuclear genes (genes from the nucleus or core of cells) has shown a nearly 100 percent statistical likelihood that the Duke results are correct. Mitochondria are the cell's pow...Experimental microbeam radiation therapy may offer improvement over traditional radiation treatments
UPTON, NY -- An experimental form of radiation therapy, known as microbeam radiation therapy (MRT), now under development at the U.S. Department of Energy's Brookhaven National Laborato...Science, engineering and technology news tips
...sing antibodies as "smart bombs" to carry doses of radiation straight to tumor cells is the aim of research by ...inst a tumor cell could carry a toxin or a dose of radiation straight to the tumor. Some clinical trials of these treatments are beginning, for example in ovari...NASA helps conservation biologists get the big picture
...st fragmentation to the possible link between UV-B radiation and amphibian declines. To explore NASA's role in...nd his colleagues. --using satellite-derived UV-B radiation data to show that UV-B has increased signficantly at 11 Central American sites where amphibians have...Fish-stocking may spread amphibian disease
... and his colleagues had previously shown that UV-B radiation also plays a role in Saprolegnia outbreaks. The researchers caution that discontinuing fish-stocking may not be enough to control diseases spread by introduced fish. "If introduced pathogens become established, effects could persist even after fish ...Structure shows repair protein cradling broken DNA
...occur randomly as a result of exposure to ionizing radiation or as programmed events during the gene shuffling that is necessary to create infection-fighting lymphocytes. The Ku heterodimer, consisting of two subunits, Ku70 and Ku80, is a member of a family of DNA repair proteins that fixes damaged DNA in orde...Research highlights from Pacific Northwest National Laboratory
...r neighbors An epidemiological study to evaluate radiation exposure to residents of a former Soviet Union com...n. Researchers are analyzing data to determine if radiation delivered at low dose rates is equally responsible for causing cancer and other adverse health effec...... associated with many current therapies, including radiation and chemotherapy. In this regard, several recent reports in leading scientific journals have implicated hepsin, another transmembrane serine protease related to matriptase, as a biological marker of, and potential drug target for, prostate cancer. ...Computerized tool helps predict outcome of treatment for early stage prostate cancer
...been developed to predict outcomes for surgery and radiation therapy, and now, brachytherapy (radioactive seed implantations) for early stage prostate cancer. In a retrospective analysis of prostate cancer patients treated with brachytherapy between 1992 and 2000, researchers found that the nomogram offers a...UK researchers raise hopes of preserving fertility for women with cancer
.... Women are often rendered infertile after drug or radiation treatment for cancer and scientists have for a long time been looking at ways to make it possible for women to have babies after they have recovered from treatment. For those who have no partner, young girls, or women who require immediate treatmen...Rafting rodents from Africa may have been ancestors of South American species
...e fossils are suggesting (36 million years). "This radiation was unusual because these rodents became the grazers of South America," he continued. "Many caviomorphs were extremely large; indeed, today some species are the largest rodents in the world. In fact, unlike most rodents, many species of caviomorphs ...NASA unveils spectacular suite of new global data products
...ndex and the fraction of photosynthetically active radiation absorbed by plants, land use and land cover change, fires and burn scars, snow and ice cover and land surface temperature. MODIS sets a new precedent in terms of radiometric data quality, integration of many different algorithms for producing a suite......, through millimeter-sized microwaves, to infrared radiation associated with radiant heat. The upper end procee...ood, producing the heat that cooks it. Ultraviolet radiation from the sun breaks down DNA. Different materials absorb and radiate light at different wavelengths....Introgens gene drug demonstrates tumor growth control
... cancer care in the form of surgery, chemotherapy, radiation therapy, immunotherapy or combinations of these and other treatments. This multidisciplinary approach to treating cancer was pioneered at M. D. Anderson. Because they focus only on cancer, experts here are renowned for their ability to treat uncommon...Old drug shows promise for helping treat advanced lung cancer
...the disease -- when surgery or radiation is rarely an option. At these ... NCI, and is usually treated by surgery or radiation therapy during the early stages of the disease. Chemotherapy is the treatment of...PET changes staging and treatment for newly diagnosed and recurrent lung cancer patients
...8 patients (13%), which generally meant changes in radiation treatment volume. It had a low impact on 13 patien...patients. These changes were mostly in the area of radiation treatment. According to the authors, because of its ability to more accurately stage disease compare...Study: tree coring seems to be quicker, cheaper method of measuring radiation
...rticles, Coleman said. They cannot say whether the radiation in the bark might present a health hazard. Assuming we have trees to look at, we know we can apply this method of investigation to many other contaminant sites in the United States and abroad, Bulleri said. This is exciting.Coleman said the method pr...NIH funds synchrotron beamlines to advance studies of molecular structures
...ation. Some scientists have compared synchtrotron radiation to a beam of light 30 times more powerful than the sun focused on a spot smaller than the head of a pin. These brilliant X-rays allow researchers to solve structures faster and and more easily than ever before. Radiation generated by synchrotrons i...