ACS News Service Weekly PressPac -- January 31, 2007
...ids are designed to accomplish the same feat using light as the trigger. They are not widely used, however,...cts roughly half the size of the wavelength of the light used to illuminate the object. Superlenses break that barrier, creating images of objects smaller th...Assessing the cost of juvenile arthritis
...rce allocation, which is increasingly important in light of economic constraints on health care systems, the authors state. The results of the study are important in helping to quantify the magnitude of health care cost savings that could result in better disease control, especially given the developmen...Exercise has no effect on risk of knee osteoarthritis
...dication and physical therapy, that may shed some light on the disease. Noting that future research should identify variables relevant to knee OA that make a difference in individual response, the author concludes: "In addition to improving the usefulness of knee OA research, our ultimate aim must be to ...Mechanism of hallucinogens' effects discovered
...entists. They said their discoveries not only shed light on the longtime mystery of how hallucinogens work, but that the findings also offer a pathway to understanding the function of drugs used to treat neuropsychiatric disorders, which are now being used largely without an understanding of their fundamen...Take fatigue seriously, says University of Alberta researcher
...ina, difficulty sleeping, increased sensitivity to light and the limiting of social activities once viewed as important. Individuals with exhaustion report frank confusion that resembles delirium, emotional numbness, sudden loss of energy, difficulty both in staying awake and in sleeping and complete socia...The problem with treating spondylarthritis with anti-TNF strategies
... ankylosis with anti-TNF strategies while shedding light on the process of SpA. A sample of male mice with spontaneous arthritis were caged together and observed from the age of 10 weeks. From week 12 to week 25, the mice were treated twice weekly with etanercept, in a strength comparable to standard dos...HIV dementia alarmingly high in Africa
... "We hope studies like these will shed additional light on the devastating problem of HIV in resource-limited countries like Uganda and encourage more programs that bring much-needed medication to these poor regions of the world," Sacktor says. Sacktor says theres little accurate data about HIV dementi...New UWS study to shed light on women and recovery from alcoholism
...reer pressures," she says. "We hope to shed more light on the recovery issue, increase our knowledge, and improve care and support for Australian women to achieve long and satisfying lives." Professionals who focus on alcohol and drug harm and have helped women to maintain sobriety are also being asked...Human circadian clocks couple to local sun time
...ban dwellers are typically exposed to less natural light than individuals inhabiting less densely populated areas. The authors propose that the gradual uncoupling of the circadian clock of city dwellers from local sun time may reflect the relative strength of natural-light and social cues in influencing ac...Daily use of antidepressants associated with increased risk of fracture in older adults
...f particular relevance," the authors conclude. "In light of the high rate of SSRI use among the general population, and among elderly persons in particular, further studies that include controlled prospective trials are needed to confirm our findings."...Experts urge strongest isolation for new drug-resistant tuberculosis cases appearing in South Africa
...outbreak in South Africa to be treated in the same light as SARS and bird flu, then global efforts to develop rapid diagnostic tests and novel treatment regimens must be stepped up. Poor countries need equipment to address these challenges not just to diagnose and monitor the disease at hospitals but po...Novel computed imaging technique uses blurry images to enhance view
...t, the imaging technique utilizes a broad-spectrum light source and a spectral interferometer to obtain hig...gh the region of interest, ISAM works by utilizing light from the out-of-focus image planes, Ralston said. "Although most of the image planes are blurry, ISA...New screening process helps better diagnose oral cancers
...ven routine visual examinations under incandescent light for suspicious lesions. The lesions that were deemed suspicious were then assessed with Vizilite, followed by the toluidine blue dye and then biopsied. Doctors then compared the findings from the conventional exam to the advanced, illumination and st...Study suggests hip fractures not caused by benzodiazepine use after all
...udies based on these new data will shed additional light on how policies that exclude coverage for benzodiazepines affect the rate of hip fracture among the elderly....JRRD releases single-topic issue focused on vision rehabilitation
...ubjects identified the WALK icon without augmented light source information (animated eyes) from farther away than either the WALK icon with augmented light source information or the DON'T WALK icon. This result suggests that changes to the pedestrian displ...MU researcher placing eye implants in cats to help humans see
...es several thousand microphotodiodes that react to light and produce small electrical impulses in parts of the retina. "We are really excited about the potential uses for this technology and the potential to create improved vision in some of the millions of people affected worldwide with retinal blindne...BC physicists transmit visible light through miniature cable
... Physicists at Boston College have beamed visible light through a cable hundreds of times smaller than a h...cs Letters, defies a key principle that holds that light cannot pass through a hole much smaller than its wavelength. In fact, the BC team forced visible lig...Long-term data on safety and effectiveness of antiobesity drugs needed
...diovascular outcomes. The authors conclude: "In light of the lack of successful weight-loss treatments and the public-health implications of the obesity pandemic, the development of safe and effective drugs should be a priorityWe think that antiobesity drug trials powered to show clinically important re...Doctors neglect insomnia in older patients
...e options include meditation, exercise, and bright light or evening activity to push back circadian rhythm for people who wake up too early. In the study, 1,503 participants from 11 primary care sites serving mainly elderly patients were interviewed. Researchers reviewed medical charts to determine whet...NYU Child Study Center expert offers tips to help curb teen binge drinking
... five (5) tips to help reduce teenage drinking, in light of a new report from the Centers for Disease Control and Prevention (CDC). The CDC study, published in the January 2007 issue of Pediatrics, found that 45 percent of the teenage respondents reported consuming alcohol in the past month, and 64 percent...