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Latest Olfaction Stories

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2011-04-17 07:39:46

Scientists assemble genes involved in regulating olfaction in the antennae of a moth Insects have a highly sensitive sense of smell. Extremely low concentrations of odor molecules in the air are sufficient to be detected by receptor neurons on their antennae. Specific proteins, so-called receptor proteins, expressed in these neurons recognize the odors. The odor molecules bind to the receptors and produce chemical and electrical signals that are processed in the insect brain and eventually...

2011-04-13 19:37:19

Findings show hormone causes people to sniff odors more An appetite-stimulating hormone causes people and animals to sniff odors more often and with greater sensitivity, according to a new study in the April 13 issue of The Journal of Neuroscience. The findings suggest ghrelin may enhance the ability to find and identify food. Researchers led by Jenny Tong, MD, and Matthias Tschöp, MD, at the University of Cincinnati found the appetite-related hormone also influences smell. The new study...

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2011-04-13 08:45:00

Birds are known in present time more for their vision and hearing than their sense of smell. However, a new study reveals that millions of years ago, their ancestors had a better sense for scents. Scientists at the University of Calgary, the Royal Tyrrell Museum and the Ohio University College of Osteopathic Medicine tested a long-standing view that the sense of smell for birds declined as they developed heightened senses of vision, hearing and balance for flight during evolution. The...

2011-04-13 00:00:29

Odor from Garbage and Pets Among the Most Offensive Bloomington, IL (Vocus/PRWEB) April 12, 2011 Call them "America's Most Unwanted." They've been known to hold entire households hostage, causing shortness of breath, nausea and panic in their victims. At the very least, they keep "home sweet home" from smelling so sweet. The culprits are household odors, and these are the worst of the worst. According to a recent nationwide survey* by the makers of ARM & HAMMER® vacuum...

2011-04-07 12:53:16

NIH-funded scientists report findings on olfactory clues to Alzheimer's disease, the sweet taste of anticipation, and the impact of autoimmune diseases on taste during research meeting in St. Pete Beach, Fla. What: Scientists supported by the National Institute on Deafness and Other Communication Disorders (NIDCD), one of the National Institutes of Health, will be presenting their latest research findings at the 2011 Annual Meeting of the Association for Chemoreception Sciences (AChemS)....

2011-04-06 21:51:13

Success opens doors extending from health to new taste molecules Following years of futile attempts, new research from the Monell Center demonstrates that living human taste cells can be maintained in culture for at least seven months. The findings provide scientists with a valuable tool to learn about the human sense of taste and how it functions in health and disease. This advance ultimately will assist efforts to prevent and treat taste loss or impairment due to infection, radiation,...

2011-03-31 22:45:25

Biologists at UC San Diego have identified the molecular mechanisms triggered by starvation in fruit flies that enhance the nervous system's response to smell, allowing these insects and presumably vertebrates"”including humans"”to become more efficient and voracious foragers when hungry. Their discovery of the neural changes that control odor-driven food searches in flies, which they detail in a paper in the April 1 issue of the journal Cell, could provide a new way to...

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2011-03-27 10:54:38

'Can you hear me now?' Researchers detail how neurons decide how to transmit informationThere are billions of neurons in the brain and at any given time tens of thousands of these neurons might be trying to send signals to one another. Much like a person trying to be heard by his friend across a crowded room, neurons must figure out the best way to get their message heard above the din.Researchers from the Center for the Neural Basis of Cognition, a joint program between Carnegie Mellon...

2011-03-25 18:32:22

Revelation sheds light on our most ancient sense Researchers seeking to unravel the most ancient yet least understood of the five senses "“ smell "“ have discovered a previously unknown step in how odors are detected and processed by the brain. The four year study, focusing on how mice respond to odors, showed that smells are picked up by the olfactory bulb "“ the first stop on the way to the brain "“ then sent to the olfactory cortex for further analysis. But...

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2011-03-25 06:35:38

A controversial idea that sense of smell can be explained by quantum physics is gaining traction in the science world, according to researchers. Researchers, reporting at the American Physical Society meeting in Dallas, say the key to proving how such a theory would work revolves around tiny packets of energy -- or quanta -- lost by electrons. The scientists performed experiments using tiny wires and showed that as electrons move on proteins within the nose, odor molecules could absorb...


Latest Olfaction Reference Libraries

Nose
2013-03-05 14:47:26

The nose is the organ that extends outward in the middle of the face between the eyes and mouth. Formation and Orientation The shape and look of the nose is dependent on the ethmoid bone and the nasal septum which is the cartilage that separates the two nostrils. The evolutionary hypotheses of nose development in humans propose that noses are alterations of the angles of the skull because of bipedalism. Because of the change in diet that has come with modern time and the change of...

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Word of the Day
bibliopole
  • A bookseller; now, especially, a dealer in rare and curious books.
This word comes from a Greek phrase meaning 'book seller.'
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