Discovery could help scientists develop defenses against high-powered e-bombs and allow physicists to view fundamental building blocks of nature
Researchers at UCLA have for the first time been able to capture and digitize electrical signals at the rate of 1 trillion times per second, a discovery that eventually may help scientists develop defenses against high-powered microwave weapons attacks and allow physicists to peer into the fundamental building blocks of nature.
Pr
Surveys for other countries underway
Climate change and the threat of global warming are poorly understood by the U.S. public, and taking action to reduce their impact is not a high priority, according to a recent MIT survey.
These results suggest that change in U.S. climate policy will not be led by public opinion. Elected officials will have to provide leadership–a task they will find difficult because achieving significant reduction of the greenhouse gases linked to cl
Navarre University Hospital has introduced a novel technique for the treatment of congenital heart defects and involving the percutaneous closure of the patent foramen ovale (PFO) with monitoring through intracavernous ecography.
PFO is a defect of the interauricular septum (partition or wall separating the two (auricles) and that allows blood clots or thrombi to pass from the right auricle to the left. In most cases this opening closes after the baby is born but, on occasions, it s
Managing large software development projects using existing management tools can be a little imprecise. An altogether softer approach has been developed as a commercial tool, enabling project managers to get inside the development process and optimise resources. The drawback with conventional software project management tools is that they are unforgiving. There isn’t a means of ascribing levels of confidence or uncertainty and, as a consequence, the resulting answers may or may not be believable. T
Chemical compounds consisting of noble gases combined with hydrocarbon molecules – a feat previously thought to be unattainable – have been created as the result of the work of researchers at the Hebrew University of Jerusalem.
This achievement by Benny Gerber, Saerree K. and Louis P. Fiedler Professor of Chemistry, and his associates at the Hebrew University Institute of Chemistry opens the way for further research to produce new chemical compounds in such areas as anesthesiology
Scientists at the American Museum of Natural History and the University of Chicago have explained how a globe-encircling residue formed in the aftermath of the asteroid impact that triggered the extinction of the dinosaurs. The study, which will be published in the April issue of the journal Geology, draws the most detailed picture yet of the complicated chemistry of the fireball produced in the impact.
The residue consists of sand-sized droplets of hot liquid that condensed from th
Rising sea levels 20,000 years ago, as the last ice age was beginning to wane, often are attributed in part to melting in West Antarctica.
But in a new study led by University of Washington researchers, an ice core of 1,000 meters was used as a sort of dipstick to show that a key section of the West Antarctic Ice Sheet probably never contained as much ice as scientists originally thought it did. That means it couldn’t have contributed as much to the higher sea level. In an area c
Study suggests combination therapy could stop spread, halt growth of melanomas
PA- Researchers at Penn State College of Medicine have identified the mechanism by which the most mutated gene in melanoma, called v599EB-Raf, aids melanoma tumor development demonstrating its importance as a therapeutic target.
“Our studies suggest that using therapies to target and inhibit the function of mutant v599EB-Raf protein could prevent the spread of melanoma and halt tumor growth for t
Retinitis pigmentosa (RP) is an inherited eye disease that causes visual disability leading to blindness. Over the last 15 years, researchers have pinpointed defects in dozens of genes causing different forms of RP. Surprisingly, patients with the same genetic defect can show different severities of vision loss and rates of disease progression. This effect is most dramatic across the retina of some individuals where regions with normal vision can abut regions of no vision. Environmental factors ha
In a study of 200 women, a group of physicians has found that a vast majority of women would be willing to take a cervical cancer vaccine themselves and would allow it to be administered to their children. The findings, which were presented at the Society of Gynecologic Oncologist’s (SGO) Annual Meeting on Women’s Cancer in Miami, describes women’s attitudes toward a potential cervical cancer vaccine, focusing on their willingness to accept it for themselves, and their daughters and sons. It is the
Defects give the immune system the green light to attack the pancreas
Scientists at Joslin Diabetes Center have found genetic regions that, when defective, allow the immune system to attack the pancreas – the first in a series of mis-steps that lead to type 1 diabetes. Armed with these findings, published today, March 22, in the journal Immunity, the researchers are now trying to hone in on the exact genes involved, in mice and in human patients.
“The significance of this s
Women who are HIV-positive or are abused are more likely to think about or attempt suicide, according to a new study by researchers from the Johns Hopkins Bloomberg School of Public Health, George Washington University and St. Michael’s Hospital, in Toronto, Canada. The Hopkins study, consistent with previous research, sheds new light on the extent to which being in an abusive relationship compounds suicide risk for HIV-positive women in particular. This latest study is published in the March/Ap
Peculiar outbursts of X-rays coming from a black hole have provided evidence that it has a mass of about 10,000 Suns, which would place it in a possible new class of black holes. The timing and regularity of these outbursts, observed with NASA’s Chandra X-ray Observatory, make the object one of the best candidates yet for a so-called intermediate-mass black hole.
Scientists have strong evidence for the existence of stellar black holes that are about 10 times as massive as the Sun
A gene named ATBF1 may contribute to the development of prostate cancer through acquired mutations and/or loss of expression, according to research at Emory University School of Medicine and its Winship Cancer Institute. The findings were published in the online edition of Nature Genetics on March 6. The Emory research team was led by Jin-Tang Dong, PhD, associate professor in the Winship Cancer Institute. Lead author was postdoctoral fellow Xiaodong Sun, PhD.
Although previous research h
ESO’s Telescopes Uncover Super Star Cluster in the Milky Way
Super star clusters are groups of hundreds of thousands of very young stars packed into an unbelievably small volume. They represent the most extreme environments in which stars and planets can form.
Until now, super star clusters were only known to exist very far away, mostly in pairs or groups of interacting galaxies. Now, however, a team of European astronomers have used ESO’s telescopes to uncover such a mon
While sports and energy drinks help athletes re-hydrate after a long workout, if consumed on a regular basis they can damage teeth. These beverages may cause irreversible damage to dental enamel, potentially resulting in severe tooth decay according to a study reported in the January/February issue of General Dentistry, the Academy of General Dentistry ’s clinical, peer-reviewed journal. Dental enamel is the thin, outer layer of hard tissue that helps maintain the tooth structure and shape
Feedback
