People with vertigo can get relief by doing maneuvers at home, according to a study published in the July 13 issue of Neurology, the scientific journal of the American Academy of Neurology.
The study involved people with benign paroxysmal positional vertigo, an inner ear problem that causes a feeling of spinning or whirling when you move your head into certain positions. The vertigo usually lasts less than a minute. It can be mild or severe enough to cause nausea. It affects an estimated 64
In the six months since WHO and UNAIDS launched the “three by five” strategy, significant progress has been made towards the goal of increasing access to AIDS treatment for all those who need it. This is the result of the efforts of many partners including governments, donors, multilateral agencies, nongovernmental organizations, faith based organizations, the private sector, and persons living with HIV/AIDS. But much more remains to be done and urgently if the world is to meet its target of providi
Researchers from the Virtual Reality Lab at the University at Buffalo have developed a new tool for transmitting physical touch to the virtual world.
Their virtual clay sculpting system enables users to replicate in real time on a personal computer the physical act of sculpting a block of clay or other malleable material. The resulting 3-D electronic shape shown on the computer screen then can be fine-tuned for product design using standard computer-aided design/modeling software.
The control of forest fires has developed into a complex science costing millions of dollars internationally. In the U.S. more than 10 million acres of forest burn annually while, in Canada, over 8,000 fires last year claimed more than 1.5 million hectares. Experts around the world are continuing to research new and innovative ways of battling forest fires.
At Carleton University in Ottawa, Canada, Systems and Computer Engineering Professor Gabriel Wainer has created a software toolkit tha
Biologists at the University of California, San Diego have discovered a new mechanism that allows cells to fight a class of toxins made by a wide variety of disease-causing bacteria.
Their discovery, detailed in this week’s early online edition of the Proceedings of the National Academy of Sciences, could eventually pave the way for the development of new, more effective treatments for bacterial diseases that kill or sicken millions of people each year, such as pneumonia, strep throat, scar
The lamprey, a jawless vertebrate, “has a radically different immune system than humans and other jawed vertebrates, but it may offer the same protection in recognizing invaders and alerting damage-control elements,” according to UAB’s Howard Hughes Investigator Max Cooper, M.D. A study by Cooper, Zeev Pancer, Ph.D., and colleagues was published in the July 9 issue of Nature.
Cooper, a developmental immunologist, is known for his work that helped delineate T and B cells in birds and mammal
Leica’s premium optics Leica M520 OptiChrome™ featuring the new Leica F40 compact stand is the perfect answer from Leica Microsystems to the demands of microsurgery. Best view, perfect balance, easy movability, perfect stability and a balanced cost-effectiveness distinguish the microscope system from Leica.
Neurosurgery or otolaryngology surgery or spine surgery require the highest level of expertise and concentration on part of the surgical team. The successful Leica M520 surgical microsco
If raindrops on roses are among your favorite things, University of Washington researchers have encountered some monster drops that could change your mind.
On two occasions, separated by four years and thousands of miles and in very different conditions, raindrops were measured at sizes similar to or greater than the largest ever recorded. The largest ones were at least 8 millimeters in diameter, about the same as the largest previously observed, and were possibly a centimeter – about four
A team of researchers led by the University of Sheffield and supported by English Heritage have found eighty 13,000-year-old carvings in limestone rock of Church Hole Cave, at Creswell Crags in Nottinghamshire. The carvings are a unique find and form the most elaborate cave art ceiling in the world.
The carvings, which appear on the ceiling of the cave, represent animal figures, including deer, bears, birds and possibly dancing women.
Dr Paul Pettitt, of the Department of Archaeolog
From the late 1950s to the end of 1961, thalidomide was a popular sedative and treatment for morning sickness until it was discovered to cause fetal malformations, which proved fatal within the first year of life in 40 percent of affected infants.
The drug was never marketed in the United States or approved by the U.S. Food and Drug Administration. But researchers recognized the drug’s properties might have cancer-fighting potential. This possibility has driven promising studies into thalidomid
Some primatologists have argued that to understand human nature we must understand the behavior of apes. In the social interactions and organization of modern primates, the theory goes, we can see the evolutionary roots of our own social relationships. In the genomic era, as scientists become more adept at extracting biological meaning from an ever expanding repository of sequenced genomes, it is likely that our next of kin will again hold promising clues to our own identity.
Comparing pri
Research published online today reveals that many of the world’s carnivores are at greater risk of extinction than previously thought. Close to a quarter of the world’s mammals are already at high risk of extinction. Any chance of reversing this trend depends on understanding what makes some species vulnerable and others resilient. And that depends on being able to predict extinction risk.
Now, a new model based on a phylogenetic analysis of the mammalian order Carnivora, described online
He saw it. He heard it. But he needed proof.
For almost four years, LSU research associate Daniel Lane was haunted by the memory of an unusual, yellowish bird. He and an associate caught a glimpse of it while bird watching in Peru. They even recorded some of its song. Right away, they knew it was something new. Something different.
Now, thanks to Lane, a specimen of that bird – previously unknown to science – rests in a Lima museum and it will soon bear a name of Lane
A team of biologists has discovered the structure and genetic sequence of the hormone that makes insects develop their hard outer shells and allows them to spread their wings. The findings answer more than 40 years of questions about insect development.
Using the fruit fly, the researchers determined the genetic sequence of the hormone bursicon, confirmed that it is responsible for the hardening of the soft exoskeleton after each molt of an insect as it grows into adulthood, and discovered
By examining the brain activity of moths, researchers have found that the behavior of these insects isn’t ruled entirely by instinct. Rather, they can learn which odors mean food.
The findings are more than academic: The researchers hope to develop methods for using trained moths to detect odors of interest for defense industry and law enforcement – such as odors given off by biological and chemical weapons.
Animal behaviorists have historically argued that most insects have a
Study suggests women with vulvodynia process pain differently
Women who experience pain in the genital area have often been told it’s all in their head. New research shows it may well be in the shins, arms and thumbs. Women with a condition called vulvodynia process pain differently, and these women are more sensitive to pain at other points in their body, researchers at the University of Michigan Health System found. Results of their study appear in the July issue of the journ
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