A study using fMRI scans found that sleep-deprived subjects displayed increased activity in the prefrontal cortex, while verbal learning tasks activated the parietal lobes, which showed better memory performance. The brain's compensation for sleep deprivation varies depending on the cognitive task.
Researchers identified distinct regions in the DNA where random genetic changes are more likely to benefit or harm an organism, suggesting a potential way to analyze genetic information from humans and other species. The study's findings could aid in understanding how life developed various proteins.
According to a new study, stroke incidence in the US may be rising, affecting over 1.2 million people annually. Researchers found that stroke numbers have remained stable for 15 years, suggesting previously reported figures may be too low.
Scientists at Berkeley Lab's PEEM2 microscope created the first high-resolution images of antiferromagnetic domain structures in lanthanum iron oxide. The findings hold promise for fabricating improved magnetic devices, such as read heads in computer hard-disk drives.
Researchers at Brookhaven Lab are developing a noninvasive blood monitor for PET imaging that can measure glucose metabolism in the blood without puncturing an artery. The device uses a patented detector and has the potential to significantly improve cancer diagnosis and treatment, as well as other diseases.
The National Research Council will assemble a committee of experts to consider how undergraduates can gain knowledge and skills needed for research careers in the rapidly changing biomedical sciences. The committee will produce a report with recommendations, along with case studies and a review of best practices.
Researchers at UC Irvine have developed a method to study the function of genes necessary for limb regeneration in salamanders, a finding that may provide key information for treating ailments like spinal cord injury and deep wounds. By understanding the process of regeneration, researchers may find new approaches and therapies for rep...
The Chinese alligator is critically endangered with fewer than 150 remaining in the wild. Conservationists believe that restoring populations through habitat improvements and captive breeding can help stage a comeback for this culturally significant species.
A new study by Queen's University researchers reveals that extreme water shortages occurred naturally in Eastern Africa over the past 1,100 years. The research warns of potential devastating impacts of future climate changes on global water supplies and food security.
Researchers at UMass have created a miniature UMass logo using nanotechnology, with potential applications in creating smaller electronic devices and increasing magnetic storage. This breakthrough is part of a larger push to develop new technologies through the study of nature's own self-assembling molecular structures.
The AAPS Workshop on Bioanalytical Methods Validation (BMV) for Macromolecules aims to determine industry standards and validation considerations for quantitative macromolecule-detecting technologies. The workshop will develop a report on bioanalytical validation criteria and standardization of terminology.
A recent study found that nearly one-third of patients with suspected stroke symptoms were not properly diagnosed or treated by their primary care physicians. The researchers emphasize the need for urgent evaluation and prevention measures to reduce stroke risk, as these early symptoms can predict future events.
Researchers at Oregon Stroke Center have successfully treated five stroke patients with laser clot-busting, achieving complete vessel re-opening in some cases. The study aims to examine the safety of the technique and explore its potential as a next wave of acute stroke treatment.