PET tracer detects early prostate cancer
...tate cancer confirmed by biopsy underwent positron emission tomography (PET) scanning using two different radiotracers: 18F-FDG and 11C-acetate. Of those, 100% of 11C-acetate PET scans were positive for primary prostate cancer, while only 83% of 18F-FDG PET scans were positive. 11C-Acetate not only showed sig...Scans link 2 key pieces of schizophrenia puzzle
... Karen Berman, M.D., report on their PET (positron emission tomography) study, published online January 28, 2002, in Nature Neuroscience. The most disabling form of mental illness, schizophrenia affects one percent of the adult population, typically in young adulthood, with hallucinations, delusions, social ...UCLA researchers invent first technique to image Alzheimer's onset
...d a new chemical marker called FDDNP with positron emission tomography (PET) to see for the first time the brain lesions indicative of Alzheimers disease in the living patient. "We have developed the first tracer molecule that visually zeroes in on the brain lesions caused by Alzheimers disease," said princip...Science's Top Ten: nanoscale computing circuits named top scientific advance of 2001
...t the high cost and unequal burden of implementing emission controls, pulled the U.S. out of the Kyoto Protocol, designed to reduce human-produced greenhouse gases worldwide. Missing Sink Found: The United States is the world's top greenhouse gas producer, but it's also a "sink," mopping up lots of carbon d...Cardiac stress tests may indicate if blockages will recur after angioplasty with stent implant
...are injected with a radiotracer, and single-photon emission computed tomography (SPECT) images are taken while the patient is at rest. They then exercise on either a bicycle or treadmill and are injected with a second radiotracer dose. A second set of SPECT images records how the heart works while stressed....Nanoparticles in air bad news for people
... of hundred nanometers generally come from manmade emission sources such as engine combustion. One micrometer ...mical composition than larger particles. Also, new emission control technologies can do a good job of removing large particles but can do very little about the ...PNNL science, technology help keep America safe
...l through the glass matrix, which results in light emission from the cerium. PUMA is being commercialized by Nucsafe of Knoxville, Tenn. PNNL researchers who developed PUMA received a R&D 100 Award and a Federal Laboratory Consortium Award for technology transfer. Device delivers on-the-spot warnings ...NSF awards $55 million in grants to study biocomplexity in the environment
...sis; and developing instrumentation to measure the emission and transport of biological aerosols into the atmosphere. Exploratory projects include: sustaining multiple functions for urban wetlands; simplification and recovery of soil biocomplexity following agricultural cultivation and...Smallest silicon particles light way for new sensors, materials
...n get a readout," she says. "You can use the light emission as a readout, or watch it shift around or go up or down. You also can manipulate the material to get a readout that changes color depending upon the chemical composition of its environment." Buriak says such applications may be in place within three ...Mercury at bottom of central park lake linked to coal burning in NYC
...Environmental Protection Agency predicted that the emission of hazardous air pollutants by coal-fired utilitie...rk City area. Last December, the EPA reported the emission of mercury as the greatest health concern posed by coal burning. Coal-fired plants in the United Sta...UC Davis biomedical engineering department awarded $12 million by Whitaker Foundation
...ing technology, especially ultrasound and positron emission tomography (PET). The laboratories of Ferrara and Michael Insana are studying ultrasound imaging. For example, they are looking at ways to make ultrasound more powerful and precise for earlier diagnosis of diseases such as breast cancer. PET is a so...Study reveals critical factors affecting urban pollution
...lts confirm that intersections are truly important emission sources of carbon monoxide," Guldmann said. "Constructing road interchanges instead of intersections, and implementing traffic signal management at intersections could help reduce levels of ...Reducing primary chemical emissions does not always reduce pollution
...et. They also realize that controlling a specific emission is not always possible. Sulfur dioxide enters the...that the Environmental Protection Agency regulates emission levels, but leaves it up to local governments to enforce EPA regulation," says the Penn State resear......and improve those technologies, including positron emission tomography (PET), functional magnetic resonance imaging (fMRI), and 2-photon laser microscopy. Previous research techniques were more invasive. This limited scientists to studying animal brains or to learn what they could from the experiences of peop...Science paper suggests strategy to more effectively control harmful ozone
...y improved by additionally considering power plant emission rates and geographic location. "We think that ou...ne production depends in large part on the plant's emission rate and location. Current emission reduction programs "implicitly value all emissions equally, rega...New technology reduces noxious emissions
...earch. One proposed timeline for integrating the emission reducing reactors comes from PNGV, which hopes to have a prototype vehicle by 2004. The laboratory also is working with Delphi Automotive, a potential supplier of a plasma-catalyst system. Under a separate Cooperative Research and Development Agree...Chemical flame retardant found in salmon
...ieved that PBDEs enter the environment via gradual emission from these products, but the process is not fully understood. Like PCBs, PBDEs have spread throughout the global environment. Studies in Scandinavia, Europe, Canada, and Japan have found PBDEs in sediments, meat, fish, sperm whale blubber, office ai...New Brookhaven Lab study shows how ritalin works
...ly for children. Using a technique called positron emission tomography, or PET, researchers at Brookhavens Center for Imaging and Neurosciences studied dopamine levels in 11 male subjects. In two sessions, the volunteers were each given a dose of Ritalin, calculated using their body weight to correspond to th...First genetically modified monkey, reported in Science, may promise medical advances for humans
... MRI [magnetic resonance imaging] or PET [positron emission tomography], to discover the developmental events that lead to diseases like diabetes, heart disease and even mental illnesses." ANDi and his surrogate mother, as well as Tetra--the female monkey cloned last year at the Oregon Regional Primate Rese...One answer for cleaner air, water: better agricultural practices
...stion. But worldwide, carbon emission from soil accounts for about ... means less erosion and, of course, less emission to the atmosphere." Researchers have estimated the am...