hand 2 4

Tag: "hand" at biology news

Did feathered dinosaurs exist?

...d to theropod dinosaurs because both groups have a hand reduced to three digits. Theropods are known from fossil evidence to exhibit a hand with digits 1-2-3, the thumb and next two digits. However, the researchers found that the vast major...

New study examines how sense of smell affects mating and aggression in mice

...hen you touch a hot pan, you immediately draw your hand away. Or, if you place your finger in an infant's palm, the baby will grasp it instinctively." The current research findings might also be relevant for controlling pest populations, which utilize olfactory cues in a manner similar to mice, according...

Cyberkinetics, Case to develop system to help restore extremity function

...thetic system capable of restoring partial arm and hand function to individuals with extensive paralysis d...o provide the user with thought-controlled arm and hand movement through the use of the patient's own muscles. The purpose of the device will be, ultimately...

Wright bros. upstaged! Dinos invented biplanes

... is that they have flight feathers not only on the hand section, but also on foot," said Chatterjee. Flight feathers differ noticeably from other feathers in that they are asymmetrical with interlocking barbules to keep their shape. The leading edge of each long feather was narrower than the trailing edge...

The Antarctic Ocean floor

...e species on the way in a mixed form. On the other hand the Box-corer is cast and once it hits the bottom it takes a 50cm x 50cm sample thereof for subsequent analysis on deck. With this sample we can quantify the number of each species per square metre, its biomass, and so on. Thus it is known as a quant...

A new link between stem cells and tumors

...njuries, so the body keeps stocks of stem cells on hand to generate replacements. Usually the stem cell divides into two types: one that is just like the parent, which is kept to maintain the stock, and another that differentiates. This is what happens with neuroblasts. Cell division creates one large neu...

New discovery: If it weren't for this enzyme, decomposing pesticide would take millennia

...at would be extraordinary example of the "majestic hand of evolution at work," Wolfenden said. For an undergraduate to publish a paper in such a prestigious scientific journal as the Proceedings of the National Academy of Sciences also is quite unusual, he said. That success in part reflects UNC's contin...

Biotechnology's newest chemical tool

...amme, the CYBERHAND project aims to hard wire this hand into the nervous system, allowing sensory feedback from the hand to reach the brain, and instructions to come from the brain to control the hand, at least in part. ...

Hand sanitizer gel works

...es with children in day careUsing an alcohol-based hand sanitizer gel significantly reduces the spread of ...reater Boston families -- half of which were given hand sanitizer -- those that used the gel had a 59 percent reduction in the spread of GI illnesses. "Th...

Women feel more pain than men, research shows

...entigrade) for two minutes before transferring the hand into an ice water bath maintained at a temperature of 1 - 2 degrees centigrade. The cold pressor tank allows researchers to monitor the pain threshold (the point at which volunteers first notice the pain) and pain tolerance (the point at which volun...

Corn grain mould used as pesticide

... this would be the ideal strategy to get the upper hand of the aflatoxin problem," Professor Sikora thinks. He has had quite a lot of experience with combating tropical plant diseases. For two years the Bonn team, together with colleagues from the IITA in Benin and Nigeria, have been looking for a mould ...

Hurricane aftermath: Infectious disease threats from common, not exotic, diseases

... water or disinfecting hands with an alcohol-based hand cleaner. Individuals should not eat food that has been exposed to flood waters or that has not been properly refrigerated." One common misperception is that the body of a person who died as the result of the hurricane and is still in the city poses ...

Birds and bats sow tropical seeds

...nsive tracts of tropical rainforest gets a helping hand from native birds and bats. Just how big a role these winged gardeners play is a question ecologists from the University of Illinois at Chicago and several Latin American universities are about to find out by setting up essentially a living laborator...

Gradient guides nerve growth down spinal cord

...nd to different parts of the body, for example the hand or foot. Zou and colleagues studied the guidance system used to assemble this complex network in newborn mice, where corticospinal axon growth is still underway. Before birth, axons grow out from the cell body of a nerve cell in the motor cortex. Th...

MRSA study demonstrates need for frequent hand washing and environmental disinfection in health care settings

...is study clearly demonstrate the need for frequent hand washing and environmental disinfection in health care settings," says Owens. ...

Bacteria can survive for weeks on hospital surfaces

...is study clearly demonstrate the need for frequent hand washing and environmental disinfection in health care settings," says Owens. ...

To translate touch, the brain can quickly rearrange its sense of the body

...ects held their left index finger with their right hand while this happened, they felt their left index finger getting longer as they felt their arm move. The team then tested how these bodily illusions rearranged the sense of touch. They touched subjects with two metal rods on the left index finger, and...

Team Invents Device For Weighing Individual Molecules

... desktop. Roukes says his group has technology in hand to push mass-sensing technology to even more sensitive levels, probably to the point that individual hydrogen atoms can be weighed. Such an intricately accurate method of determining atomic-scale masses would be quite useful in areas such as quantum ...

Aircraft Cabin Ventilation Influences The Transmission Of Diseases In-flight

... to air travel and infection. They write that good hand hygiene has been proven to reduce the risk of disease transmission, and air travellers should make it part of their normal travel routine. Dr Gendreau comments: "Because of the increasing ease and affordability of air travel and mobility of people, ...

Two new retroviruses—transmitted from animals—identified

...nts by surgeons (whereby the surgeon must move his hand to the left in order to move the mechanical device to the right), the daVinci technology affords surgeons the direct, "intuitive" control they exercise in traditional open surgical procedures, seamlessly translating their natural hand, wrist and fing...

1 2 3 4 5