PET's imaging power may be best indicator for determining which patients develop Alzheimer's
...less biological imaging exam that "photographs" or detects the presence and extent of neurological conditions. PET uses very small amounts of radioactive materials that are targeted to specific organs, bones or tissues. Radiotracers (such as FDG) are injected and then detected by a special type of camera tha...Logging doubles threat to the Amazon, rivaling clear-cutting, study suggests
...Carnegie Institution of Washington and colleagues, detects deforestation on a finer scale, allowing researchers to identify areas where trees have been thinned, due mostly to "selective logging." In this type of deforestation, only certain marketable tree species are cut and logs are transported offsite to s...Premier global vascular surgery meeting in New York
... the vascularpatient Laboratory - Blood test that detects cardiac risk in vascularsurgery patients Aortoiliac & Thoracic Aneurysms - Progress and Treatments Deep Venous Thrombosis - New Developments Stroke Prevention - Pharmacological options Carotid Artery Disease - Is an intervention always necessar...Selective logging causes widespread destruction of Brazil's Amazon rainforest, study finds
.... "Using satellite data, we developed a model that detects the physical changes to the forest. We started to have success about three years ago at a scale of about 200 hundred square miles. This was the first solid, quantitative detection of logging-related damage to forest canopies." By late 2004, the resea...Discovering the first steps in transcription-coupled repair
... -- the transcription-coupled repair (TCR) process detects the obstruction and repairs the damage. But when TCR itself fails, the results can be lethal to cells and to the organism. In humans, failure of transcription-coupled repair is the cause of Cockayne Syndrome, an extreme form of accelerated aging that...New protein discovery may have implications for treating deadly E. coli infection
...atalyst for bacterial growth, so when a human body detects bacterial invasion, it naturally produces proteins that bind tightly to and restrict iron to limit bacterial growth. In response, bacteria have evolved other methods to acquire iron including detecting and using human heme within proteins such as hem...War on terror meets war on cancer
...amples were analyzed in a mass spectrometer, which detects the atomic weights of isotopes of oxygen within the water. The result: The ratio of oxygen-18 to oxygen-16 was different in water from inside and outside the bacteria. The extent of that difference allowed the scientists to determine that 30 percent ...Learning about sex from an elegant worm
...med cell death (apoptosis). In yeast, a checkpoint detects errors in chromosome matching, synapsis, and recombination. In mammals there may be two checkpoints, one that reacts to synaptic failure and another to DNA damaged during recombination. In both yeast and mice, however, the processes of synapsis and r...JCI table of contents, February 16, 2006
...igrate to the lung. Using a specific antibody that detects CXCR2 protein, the researchers found that CXCR2 is present on blood vessel wall cells of the lung and in cells called epithelial cells that line the airways. The authors report that it is this pattern of CXCR2 expression on lung cells, and not the pr...Drawing a crowd: Understanding the signals that bring inflammatory cells into the lung
...grate to the lung. Using a specific antibody that detects CXCR2 protein, the researchers found that CXCR2 is present on blood vessel wall cells of the lung and in cells called epithelial cells that line the airways. The authors report that it is this pattern of CXCR2 expression on lung cells, and not the ...Rochester scientists develop fast-working biosensor
...rated a new technology that accurately and rapidly detects the meat-spoiling and sometimes dangerous E. coli bacteria. The unique technology uses a protein from the suspect bacteria as part of the sensing system that also includes a silicon chip and a digital camera. The journal Biosensors and Bioelectronics...New predation management methods reduce conflict between humans and carnivores
...ice that flashes lights and sounds a siren when it detects predators. Guard dogs have also made a comeback in recent years in the United States. Other techniques modify behavior through conditioning. In this category are fladry with electrically charged wires ("turbo fladry"), paintball-type weapons that use...Falcon decoys and simulated rifle fire keep birds from oil
...lcon effigies only when birds approach. The radar detects the birds and relays the information to a computer that automatically deploys the deterrents. Ronconi led the fieldwork and observed almost 8000 birds during the experiment, which took place in northern Alberta near Fort McMurray. The research has ju...Researchers convinced satellites are helpful in tracking epidemics
...gned a prototype of a sensor located in a box that detects mosquitoes as they fly overhead. The data collecte...osquito of the species Anopheles, so if the sensor detects her presence in high numbers, public officials will be alerted so that preventive measures can be pu...'Custom' nanoparticles could improve cancer diagnosis and treatment
...ers say. "I think this will transform the way one detects and treats disease," says study leader Joseph DeSimone, Ph.D., a chemistry professor at UNC and director of the schools Institute for Advanced Materials, Nanoscience and Technology. He has co-founded a company, Liquidia Technologies, to develop and p...Quantum dot method rapidly identifies bacteria
... are more stable when exposed to light. The method detects and identifies 10, or fewer, target bacterial cells per milliliter of sample in only about an hour. The phages were genetically engineered to produce a specific protein on their surface. When these phages infect bacteria and reproduce, the bacteria b...Molecular discoveries aim at advancing early diagnosis of cancers
... bronchoscopy misses the diagnosis, our test often detects the cancer. Together, the two tests have a very hi...ited States to diagnose lung cancer. The procedure detects from 30 to 70 percent of all lung cancers, depending on the stage of cancer development. Where bron...New crop of technology reveals plant health
...oups of plants are getting too hot. Another sensor detects chlorophyll fluorescence, which tells the system the rate at which the plant is absorbing energy. That reflects the current state of photosynthesis, itself a reflection of the plant's health. These sensors communicate their data through specially de...SNM issues first procedure guideline for imaging cancer in adults and children with PET/CT
...f cancer within the body. The highly sensitive PET detects the metabolic signal of actively growing cancer cells. When PET is used to image cancer, a radiopharmaceutical (such as FDG, which includes both a sugar and a radionuclide) is injected into a patient. Cancer cells metabolize sugar at higher rates tha......ognition and attraction. For example, when a roach detects another roach, it may approach it, move away or stop. Cockroaches were chosen here because their pheromones are better understood than those found on other gregarious insects, such as ants. According to coordinator Jean-Louis Deneubourg, from the Uni...