- ScienceDaily
- 14/1/13 17:48
The retina can be bombarded by reactive oxygen species in diabetes, prompting events that destroy healthy blood vessels, form leaky new ones and ruin vision.
The retina can be bombarded by reactive oxygen species in diabetes, prompting events that destroy healthy blood vessels, form leaky new ones and ruin vision.
Climate-change studies show leaf-out times of trees and shrubs at Walden Pond are an average of 18 days earlier than when Henry David Thoreau made his observations there in the 1850s.
Researchers have developed an assistive technology system that works by sounds which contributes to the autonomy of persons with visual impairments.
Four years after the January 2010 earthquake, 145,000 people still remain homeless in Haiti. A cheap and simple technology to repair earthquake damaged buildings could help to reduce these delays by quickly making buildings safe and habitable.
A blood pressure drug offers hope to migraine sufferers who currently get no relief from existing treatments.
Scientists have constructed a detector, which provides a detailed picture of the waveforms of femtosecond laser pulses (1 fs = 10-15 seconds). Knowledge of the exact waveform of these pulses enables scientists to reproducibly generate light flashes that are a thousand times shorter -- lasting only for attoseconds -- and can be used to study ultrafast processes at the molecular and atomic...
Targeted radiation therapy that is less harmful to healthy cells could see the light of day thanks to a team of researchers. Until now, radiotherapy treatments employed to combat cancer used a wide energy range when irradiating biological tissues. By studying at a fundamental level the behavior of molecules subjected to radiation with a carefully chosen energy, the researchers paved the way for...
After 42 months the EU research project "NanoHouse" has ended, and the verdict is a cautious "all clear" – nanoparticles in the paint used on building façades do not represent a particular health risk. Researchers discussed these results with specialists from the construction...
Research evidence shows that symptoms of postpartum depression decrease over time -— but depression remains a long-term problem for 30 to 50 percent of affected women, according to a report.
Shoulder arthritis is a common problem for rheumatoid arthritis patients: pain and difficulty moving their arms can grow so severe that daily tasks and sleep become difficult. If medication and physical therapy aren’t enough, shoulder replacement surgery is a common next step. Despite surgical challenges with some rheumatoid arthritis patients, the procedure improves range of motion and reduces...
Scientists have been able to observed, for the first time, the collective spin dynamics of ultra-cold fermions with large spins.
Older adults who received as few as 10 sessions of mental (cognitive) training showed improvements in reasoning ability and speed-of-processing when compared with untrained controls participants as long as 10 years after the intervention. These gains were even greater for those who got additional "booster" sessions over the next three years. Older adults who received brief cognitive training also...
Researchers have found a way to project future habitat locations under climate change, identifying potential safe havens for threatened biodiversity.
School drug testing does not deter teenagers from smoking marijuana, but creating a "positive school climate" just might, according to research.
Researchers have developed an at-home test that can help doctors spot early symptoms of cognitive issues in their patients, like Alzheimer's disease. The test is cheap, self-administered, and a new study shows, can be just as effective as other costlier and more time-consuming tests. It's called the self-administered gerocognitive examination...
White parents reported higher use of age-appropriate car seats for one- to seven-year-old children than non-white parents, according to a new study. The race of the parents is a significant predictor of whether a child is placed in the right safety seat for his or her age.
Professors have studied 200 specimens of freshwater turtles from eleven Valencian wetland areas, to determine the prevalence of Salmonella and Campylobacter in these animals, because of their potential risk of transmitting gastrointestinal diseases to humans, especially children. According to the results, 11% of the analyzed specimens of freshwater turtles were found positive for Salmonella....
Two new articles explore the use of drones in military operations. The articles highlight increasing levels of disapproval of the use of drones in recent U.S. polls and suggest that drone warfare may be leading to an emphasis on tactical wins over long-term strategic...
Scientists have developed EC-BLAST: software that makes it easier to develop novel enzymes. The program makes it possible to quickly compare the functions of thousands of catalysts, facilitating research into anything from drug interactions to the efficient production of...
In a recent doctoral thesis, a researcher shows how the substance ellagic acid found in red berries and nuts, for instance, can stop cell division in cultivated cells from the childhood cancer neuroblastoma and induce cell death.
Researchers have made an important breakthrough in the understanding and treatment of hereditary emphysema. Their research bridges the research-to-treatment gap. The exciting findings show how the protein Alpha-1 Antitrypsin (AAT) plays an important role in controlling inflammation from white blood cells and its importance for good...
Physical doping and brain doping apparently often go hand in hand. A new study has revealed that people who engage in physical doping often also take drugs for brain doping. The study was the first of its kind to survey simultaneously the two categories of doping and brain...
Scientists have discovered how salt acts as a key regulator for drugs used to treat a variety of brain diseases including chronic pain, Parkinson’s disease, and depression.
A study used stem cells to correct a defective “ring chromosome” with a normal chromosome. Such therapy has the promise to correct chromosome abnormalities that give rise to birth defects and disabilities.
Teenage boys who think they’re too skinny when they are actually a healthy weight are at greater risk of being depressed as teens and as adults when compared to other boys, even those who think they are too heavy, according to findings published.