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Tag: "smells" at biology news

Get a whiff of this: Smell test could sniff out serious health problems

...in the disease process.? Frank adds that because smells don’t have to be identified as part of the Sniff M...t to tickle their senses. Because the really nasty smells worked best for the Sniff Magnitude Test, Frank says the test subjects get a whiff of three odors: a...

Scientists to track impact of Asian dust and pollution on clouds, weather, climate change

...," Ehlers said. "The brain can decode thousands of smells that enter the nose, discriminating even the slightest scent and often conjuring up vivid memories. So we wanted to know how the brain decodes the presence of these chemicals in the air and turn them into a perception. It's still quite mysterious." ...

Common algae helps illustrate mammalian brain electrical circuitry

...," Ehlers said. "The brain can decode thousands of smells that enter the nose, discriminating even the slightest scent and often conjuring up vivid memories. So we wanted to know how the brain decodes the presence of these chemicals in the air and turn them into a perception. It's still quite mysterious." ...

Microbes compete with animals for food by making it stink

...rotten food is just as good, but a lot of the good smells have leached out in the water, so maybe it's just food that's harder for predators to find," he explained. Researchers assessed their questions about feeding by conducting laboratory experiments. To eliminate food avoidance because of texture, ...

Science captures the essence of fruit

... plant gene responsible for making a compound that smells like the heady scent of red roses. Dr Newcomb says HortResearch scientists are continuing to seek new gene/compound combinations which they believe will find ready demand in the marketplace. "Alongside colour, flavour and fragrance rank as some ...

Smell of success for nanobiosensors

...ools necessary for an electronic nose to recognise smells ?the role played by the brain in the olfactory system. In this sense, new high accuracy electronic instrumentation capable of performing electrical measurements at the nanoscale level has been developed and adapted to an atomic force microscope with ...

Research identifies protein in mice that regulates bone formation

...ly stage targets go, this looks promising. It just smells like a good target." ...

Evolutionary shifts in olfactory sensitivities in fruit flies

...e morinda fruit, for egg-laying. This fruit, which smells of gorgonzola and pineapple, is toxic to, and shunned by, D. melanogaster and other sibling fruit fly species. In their new work, the researchers show that the main cue used by D. sechellia when locating morinda fruit is methyl hexanoate (MeHex), wh...

Neuroscientists discover new cell type that may help brain maintain memories of smells

...ties which may help the brain maintain memories of smells and also opens a new approach to understanding the...chinery that helps the olfactory brain to remember smells is identical to the machinery that enables other types of memories in the cortical brain region most...

Worms know bad food when they smell it

...researchers have now shown, quickly learn to avoid smells associated with foods that have made them ill. The new study, led by Howard Hughes Medical Institute investigator Cornelia I. Bargmann and Yun Zhang, a postdoctoral fellow in Bargmann's laboratory at The Rockefeller University, represents a clear c...

Neurons generated in the adult brain learn to respond to novel stimuli

...a unique role in the brain, becoming linked to new smells while the older neurons essentially step out of the way. And since adult-born neurons are continually being generated, there is always a group of new cells waiting to link up with new stimuli," Macklis says. "We're also seeing how the environment ca...

Novel protein complex enables survival in hostile environment

...ate into sulfide, a corrosive compound or gas that smells like rotten eggs. Methanogenesis is a 2.7?.2-billion-year-old process and sulfate reduction originated at least 3.7 billion years ago on earth. "These two processes apparently cannot exist within one living cell, because the reduction of sulfate pro...

Virtual animal shelters ?How the Internet is transforming the experience of pet adoptions

...he Internet dog search shuts out the noise and the smells associated with a county shelter. However, Garcia adds that the drawbacks are that pet postings are not interactive, and chemistry between the dog and its new owner is a vital part of the selection process. Garcia's paper is part of a larger, ongoin...

Study shows humans have ability to track odors, much like bloodhounds

...as two trigeminal odorants - propionic acid, which smells like vinegar, and amyl acetate, which smells like banana. They delivered the odors through a specially designed mask with an artificial septum th...

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