Moving through water can be a drag, but the use of supercavitation bubbles can reduce that drag and increase the speed of underwater vehicles. Sometimes these bubbles produce a bumpy ride, but now a team of engineers from Penn State's Applied Research Laboratory have an approach that smooths out the ride and stabilizes the bubble.
In supercavitation, a bubble of gas encompasses an underwater vehicle reducing friction drag and allowing high rates of speed through the water.
(Edmonton) As Canadians prepare for long summer days in the sun, a new publication is shedding light on the suggested medical benefits of a nutrient that comes with the sun's rays: vitamin D.
(Vancouver, BC - June 16, 2016) A new study published today in the journal Blood has identified a protein that could diagnose chronic graft-versus-host disease (cGvHD), a serious, long-term complication that affects some patients after a blood and bone marrow transplant. The work was led by researchers in the Michael Cuccione Childhood Cancer Research Program at BC Children's Hospital and the University of British Columbia.
LIVERMORE, Calif. -- Viruses can't live without us -- literally. As obligate parasites, viruses need a host cell to survive and grow. Scientists are exploiting this characteristic by developing therapeutics that close off pathways necessary for viral infection, essentially stopping pathogens in their tracks.
Pharmaceutical companies and other sponsors of clinical drug trials are required to report results to ClinicalTrials.gov, a registry run by the U.S. National Library of Medicine (NLM) at the National Institutes of Health (NIH). It's the largest clinical trials database, currently holding registrations from about 200,000 trials.
MINNEAPOLIS - Having a first-degree relative with epilepsy may increase a person's risk of being diagnosed with autism, according to a study published in the June 15, 2016, online issue of Neurology®, the medical journal of the American Academy of Neurology.
"Other studies have linked the two conditions, however, our study looks specifically at the brothers and sisters and sons and daughters of people with epilepsy to determine a possible autism risk in these relatives," said study author Heléne E.K. Sundelin, MD, with University Hospital in Linköping, Sweden.
SPOKANE, Wash.--A Washington State University researcher has found that statin drugs can dramatically lower the risk of infections in stroke patients.
Epithelial ovarian cancer (EOC) is the most lethal disease among gynecologic malignancies. Patients with an advanced disease often relapse due to the development of chemoresistance. Chemotherapy failure is a consequence of acquired drug resistance which may potentially be due to multiple mechanisms including miRNA-mediated gene regulation. This review provides an overview of current therapeutic targets of miRNA-associated chemoresistance in EOC and illustrates the therapeutic potential and molecular mechanisms by which miRNAs influence the development and reversal of chemoresistance.
People with diabetes often suffer from wounds that are slow to heal and can lead to ulcers, gangrene and amputation. New research from an international group led by Min Zhao, professor of ophthalmology and of dermatology at the University of California, Davis, shows that, in animal models of diabetes, slow healing is associated with weaker electrical currents in wounds. The results could ultimately open up new approaches for managing diabetic patients.
Preliminary tests have demonstrated that a new device may enable existing breast cancer imagers to provide up to six times better contrast of tumors in the breast, while maintaining the same or better image quality and halving the radiation dose to patients. The advance is made possible by a new device developed for 3D imaging of the breast by researchers at the Department of Energy's Thomas Jefferson National Accelerator Facility, Dilon Technologies and the University of Florida Department of Biomedical Engineering.
Enclosed in a case of moist jelly, most minute frog embryos take their time emerging from the protective coating; but not the spawn of tree dwelling Agalychnis callidryas (red-eyed treefrogs). When the eggs find themselves under attack by predatory snakes, the tiny embryos can burst out of their eggs in as little as 6s before dropping to safety in water below. 'This escape hatching is a mechanism for running away from a really important predator', says Karen Warkentin from Boston University, USA. But she was unsure how the tiny animals made their escape.
While male banana fiddler crabs (Uca mjoebergi) in Australia typically court females, some may coerce mating by waiting for females to enter their burrows and then trapping them there, according a study published June 15, 2016 in the open-access journal PLOS ONE by Christina Painting from The Australian National University, Canberra, and colleagues.
A maternally transmitted Spiroplasma bacterium is the likely cause of the green lacewing's female-biased sex ratio, according to a study published June 15, 2016 in the open-access journal PLOS ONE by Masayuki Hayashi from Chiba University, Japan, and colleagues.
SALT LAKE CITY, June 15, 2016 - It's easy to understand why natural selection favors people who help close kin at their own expense: It can increase the odds the family's genes are passed to future generations. But why assist distant relatives? Mathematical simulations by a University of Utah anthropologist suggest "socially enforced nepotism" encourages helping far-flung kin.
Scientists can interfere with sperm production in the parasitic blood fluke Schistosoma mansoni by blocking expression of the Nuclear Factor Y-B gene (NF-YB). The new study by Harini Iyer and Phillip A. Newmark of the Howard Hughes Medical Institute and University of Illinois and James Collins (now at UT Southwestern) appears on June 15 in PLOS Genetics.