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Tag: "hand" at biology news

Genetic surprise confirms neglected 70-year-old evolutionary hypothesis

...ed, which meant much of the work had to be done by hand by Masly and his collaborators. Masly knew that chromosome #4 on melanogaster held a gene that was somehow very important for fertility--information found earlier by Rochester biologist H. Allen Orr. Crossbreeding the flies proved tricky because a f...

Transmission of antibiotic-resistant bacteria linked to previous intensive care unit room occupants

... of difficult-to-clean design or poor placement of hand hygiene equipment, transmission may be more directly linked to a prior occupant who harbors a resistant organism rather than to a particular room," the authors write. Susan S. Huang, M.D., M.P.H., Brigham and Women's Hospital and Harvard Medical S...

Artificial cornea offers better results for infants, some blind patients

...0 vision. "Finally, we seem to have a method in hand to improve the vision of these children, many of whom have endured several surgeries that have failed," said James Aquavella, M.D., the University of Rochester ophthalmologist who is pioneering the use of the implant and who operated on most of the c...

Regulating the nuclear architecture of the cell

...ween the need for replication processes on the one hand and the need to repress or control or regulate those processes on the other." Since DNA pieces that copy themselves must use RNA intermediates, these can be disabled by RNA interference. Transposons are also silenced by accumulating in the transc...

Mirrors in the mind: New studies elucidate how the brain reflects onto itself the actions of others

...t being bitten. Similar findings were obtained for hand actions (for example, grasping a pen) and foot act... kissing, or emptying a soda can with a straw) and hand actions (such as ripping a sheet of paper or opening a zipper), brain areas are activated that overl...

Technology for monitoring fetal oxygen during labor offers no apparent benefit

...gen saturation monitoring, a sensor is inserted by hand through the cervix, after the membranes have ruptured, and placed against the baby's face. The sensor, connected to a monitor by a cable, provides a continuous reading of the baby's oxygen level. For the current study, the researchers enrolled 53...

Researchers add to understanding of how brain cells communicate

...f you touch a hot stove, the pain signal from your hand and the visual signal from your eyes reach the brain at about the same time, forging a memory. Specifically, memory requires the coordinated activation of many types of receptors at synapses. The flow of calcium ions through a channel in NMDA recepto...

The appearance of your hands can reveal your age, study finds

... of your hands, you may seriously want to consider hand rejuvenation." In the study, people examined una...altered photographs of female hands ?blemishes and hand veins were removed or jewelry and nail polish were added ?to unaltered photographs to assess which h...

K-Staters design and build a low-cost remote sensing tool for environmental studies

...se. Its weight and size allow it to be launched by hand and flopped down in the grass for landings," Schinstock said. "Furthermore, we're relying on an electric propulsion system that makes it extremely reliable and easy to use," he said. "Battery power eliminates emissions and messy fuels that could com...

Brain-computer link lets paralyzed patients convert thoughts into actions

...able to open and close the fingers of a prosthetic hand and use a robotic limb to grasp and move objects. ...rted. The volunteer is asked to imagine moving one hand as if he were controlling the computer mouse. The researchers study the data and build filters to co...

Global study shows all tobacco bad for the heart

...hether that be smoking, chewing or inhaling second hand smoke, increase the risk of heart attack. The st...acco use (both smoking and non-smoking) and second hand smoking in all areas of the world. The INTERHEART study included data from more than 27,000 people i...

MIT 'seeing machine' offers hope to blind

...distinguish between light and dark and she can see hand movement, although not individual fingers. She cannot recognize faces or read. Subjects "had a wide range of cause for vision loss, including diabetic retinopathy, macular degeneration (the fastest growing cause of blindness), and visual field loss...

New approach to vaccine development provides potent, long-lasting immunity

...ard and in what direction it's being pushed by the hand holding it. Using computer programs, the researchers then were able to apply mathematical equations to these measurements and calculate predictions of how the brain might be "learning" these simple movements. For example, by taking into account the...

Matrilin-3 gene discovered to prevent onset of osteoarthritis

...usly been linked to certain skeletal disorders and hand osteoarthritis. But this study, reported in the co...een a link between mutated forms of matrilin-3 and hand osteoarthritis, as well as skeletal disorders such as multiple epiphyseal dysplasia (MED), a disorde...

Robotic joystick reveals how brain controls movement

...ard and in what direction it's being pushed by the hand holding it. Using computer programs, the researchers then were able to apply mathematical equations to these measurements and calculate predictions of how the brain might be "learning" these simple movements. For example, by taking into account the...

Studies suggest new brain protein may help in treating schizophrenia, insomnia and anxiety

...otein-coupled receptors. Collectively, they have a hand in modulating most every physiological process in the body and brain. Moreover, according to Dr. Reinscheid, about 40 percent of drugs on the market target the function and various actions of these receptors. Dr. Reinscheid's lab is only beginning ...

In a technical tour de force, Salk scientists take a global view of the epigenome

...te's Plant Biology Laboratory. "Previously, only a hand full of plant genes were known to be regulated by methylation. In addition to those, we found hundreds of others." These technological innovations, pioneered by Ecker's team and that of Steve Jacobsen, Ph.D., a Howard Hughes Medical Institute inves...

UC San Diego biologists solve plant growth hormone enigma

...as taken place." Applying auxin to the flowers by hand can also induce seedless tomatoes, or other seedless fruit, but this method is too tedious to be useful for commercial purposes. Seedless fruits would not just be novelty items. For example, Zhao points out that seeds significantly increase the eff...

Trial success for diabetic nerve therapy

...ns each year. "The vast majority of non-traumatic hand and foot amputations carried out in UK hospitals are caused by diabetes and there are currently no treatments available to prevent or slow the progress of nerve disease in diabetic patients," he said. "Our tests have shown that a single injection of...

Even fish don't swim well when they're young!

...djust rearing schemes in aquaculture and to lend a hand to endangered species", she says. ...

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