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Tag: "nose" at biology news

Longer treatment benefits sleep apnea patients

...eeps and works by blowing just enough air into the nose to keep the patient's throat open. Because they often find the CPAP device cumbersome, many patients do not use it consistently or for long enough periods while sleeping. In the current study, for example, patients used CPAP on average about 5 h...

Rare soft-shell turtle, nesting ground found in Cambodia

... life hidden in sand or mud with only its eyes and nose showing. It possesses long claws and can extend its neck with lightning speed to bite with jaws powerful enough to crush bone. “It has the fastest strike of any animal I’ve ever seen, including cobras,?Emmett said. The researchers also found a...

Metacognition: Faced with a test, rats can check their knowledge first

...of whether to take the test at all by poking their nose into one of two apertures. If the rat opted out of the test, it received a small food reward; if it opted in, it was subsequently presented with two levers, one of which it knew from past training represented "short duration" and one "long duration."...

Penn study on olfactory nerve cells shows why we smell better when we sniff

...actory neurons, the primary sensory neurons in the nose that perceive odors. Researchers then puffed a solution without the chemical stimuli into the mouse's nose. This also produced a similar, but smaller reaction in the olfactory neurons. By decreasing pressure of the non-odor solution, they also found...

Instruction manual for creating a molecular nose

An artificial nose could be a real benefit at times: this kind of biosensor could sniff out poisons, explosives or drugs, for instance. Researchers at the Max Planck Institute for Polymer Research and the Max Planck Institute of Biochemistry recently revealed a techniq...

Common blood test can help distinguish between mononucleosis and tonsillitis

...ed by the Epstein-Barr virus) are both common ear, nose and throat conditions with similar symptoms, according to background information in the article. These symptoms include sore throat, fever, painful swallowing, white plaque on the tonsils and redness of the throat and tonsils. "The importance in di...

Antivirals effectively curb influenza virus

...t infectious droplets inhaled and exhaled from the nose may be important in viral transmission, thus orally administered oseltamivir might have an advantage in limiting spread. In addressing the limitations to their research, the authors call for further studies into antiviral efficacy. "Trials in non...

Computer imaging assists with facial reconstructive surgery

...rd, prominent facial features such as the chin and nose are balanced in relation to the structures around ...e intersection of a line drawn from the tip of the nose to the chin and a line drawn next to the neck Facial convexity angle: the intersection of a line d...

Groundbreaking Canadian asthma study

...tients. Using a flexible bronchoscope through the nose or the mouth, a routine procedure. physicians treat small to medium sized airways with Bronchial Thermoplasty (BT). The BT device generates radio frequency/thermal energy and reduces areas of underlying smooth muscle in the airways. The procedure is ...

New technology to speed up research into Huntington's disease

...ouse. The mouse makes its response by touching its nose to the touch-sensitive screen. This means that the HD mice can complete the task, despite motor problems. Other benefits are that it is less labour intensive, less time consuming and less stressful for mice, compared to traditional testing method...

Hopkins scientists link immune response to 'ghost' parasites and severely congested sinuses

...the first to identify the enzyme's presence in the nose and confirm its link to sinusitis. "This findi... not mean that there are actually parasites in the nose causing sinusitis, but our study does lend support to the concept that really severe and persistent ...

Study shows antibiotic-resistant bacteria responsible for increase in muscle infections

... is a common bacterium found on the skin or in the nose of a quarter to a third of all people. Usually harmless, staph can cause skin infections such as pimples and boils and, less frequently, serious infections of surgical wounds or the bloodstream, and pneumonia. For years, infections caused by Staphylo...

Sea urchin genome suprisingly similar to man and may hold key to cures

...surprise is that this spiny creature with no eyes, nose or hears has genes involved in vision, hearing and smell in humans," Calestani said. "The comparison of human genes with their corresponding ancestral sea urchin genes may give important insight on their function in humans, in the same way the study ...

Asia's odd-ball antelope gets collared

... similar to a tapir. The function of this unusual nose is not clear, but it may serve to warm or filter air during Mongolia's frigid winters and notorious dust storms. Today saiga numbers have plummeted by 95 percent from an estimated one million animals just 15 years ago, due to poaching for Chinese ...

Contrary to common wisdom, scientist discovers some mammals can smell objects under water

...e nostrils. "Because the olfactory nerves in the nose are covered with mucous, odorant molecules are all...ecules will mix with the air and be drawn into the nose when the bubble is inhaled." Just because the moles are getting whiffs of interesting odors underw...

'Cellular antennae' on algae give clues to how human cells receive signals

...erm cells to make fertilization possible, line the nose to pick up odors, and purify the blood, among othe...to that found in human cells, such as those in the nose involved in the sense of smell and those in the developing nervous system that sculpt our brains. U...

Quick -- what’s that smell?

...tected and identified remains a mystery. The human nose probably contains several hundred different types of olfactory receptors, while animals with a highly developed sense of smell - such as dog, rat, or cat - may have over a thousand different receptor types. It is thought that perception of any one od...

Smell of success for nanobiosensors

...imal noses respond to different odours. This new nose biosensor is unusual in how it's made. By placing ...d grew in yeast, would be needed for an electronic nose to detect almost any smell because different proteins react to different odorants and it is the resu...

Researchers show how brain decodes complex smells

...ry bulb -- the first stop for information from the nose -- do not perceive complex scent mixtures as single objects, such as the fragrance of a blooming rose. Instead, these nerve cells, or neurons, detect the host of chemical compounds that comprise a rose's perfume. Smarter sections of the brain's olfac...

Intimate kissing quadruples risk of meningitis in teenagers

...compared with a matched control. Blood samples and nose and throat swabs were taken and data on potential risk factors were gathered by confidential interview. Intimate kissing with multiple partners, a history of preceding illness, and being a student conferred higher risk of disease, whereas recent att...

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