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ear in Biological News

Preventing ear infections in the future: Delivering vaccine through the skin

... skin appears to protect against certain types of ear infections. Scientists from the Research ... is an effective way to prevent experimental ear infections and lays the foundation for an ... 83% of all children will experience at least one ear infection prior to 3 years of age. Currently ...

UCLA scientists discover ultrasonic communication among frogs

... capable of hearing or producing. Key parts of the ear must be specially adapted to detect ultrasounds. ... he should go to China to see "a frog with an ear canal like a human," Narins recalled. Narins ... due to the highly unusual presence of an ear canal. That research was published March 16, ...

Lehigh researcher awarded $1.8 million NIH grant

... auditory system processes sound information. The ear and the brain work in tandem to determine the ... devices substitute for damaged structures in the ear that may not function properly, and can restore ... the process of how information moves from the ear to the brain, less is understood about efferent ...

Genes that control cell death fingered in age-related hearing loss

... and changes in the delicate cells in the inner ear that translate a sound into a signal that the ... looking at genes whose activity in the inner ear differed greatly between normal mice and those ... to loud noise wherever possible, and wearing ear protection when working with power tools or ...

GN Netcom Introduces Innovative Noise Blackout Technology

... all day use. Enhancing the comfort is a removable ear hook and a selection of eight Jabra Eargels(TM) ... -- 250 hours standby time -- 33 foot range -- 8 ear gels and one ear hook provided for added comfort -- .35 ounces in ...

Like eavesdropping at a party

... to you, but we all have the ability to keep an ear out for other interesting conversations going on ... coming through the closest channel through one ear while the other ear 'listens' to the calcium coming through distant ...

Female concave-eared frogs draw mates with ultrasonic calls

... She emits a high-pitched chirp that to the human ear sounds like that of a bird. This is one of ... have energy in the ultrasonic range. The recessed ear structure protects an eardrum that is 1/30 the ... very high frequency sounds. The unusual ear structure and the high-pitched calls are likely ...

Study links low-frequency hearing to shape of the cochlea

... the snail-shell-shaped organ in the inner ear that converts sound waves into nerve impulses ... and cause it to vibrate. Tiny bones in the ear amplify and transmit these vibrations to the ... with a number of concrete examples using real ear shapes and hearing abilities. Ketten provided ...

A screening strategy using zebrafish targets genes that protect against hearing loss

... to signal how hair cells in a persons inner ear might respond under similar conditions. Hair ... fluid (triggered by sound vibrations in the inner ear or changes in water pressure in the fishs ... found to protect hair cells from a mouses inner ear against the drug, indicating that the same ...

Root or shoot? EAR calls the shots

... question, Root or shoot" literally hinges on the ear domain, a short protein sequence only six amino ... the process clarify the purpose of the so-called ear motif, a protein domain whose function has ... years. Weve known for a while that the ear domain can turn off transcription, but how it did ...

Southern California institutions to collaborate on stem cell research

... California Institute of Technology and the House ear Institute. "The potential applications for ... the collaborative stem cell research at the House ear Institute is the regeneration or transplantation ... sensory cells and other cell types in the inner ear to restore hearing," says David Lim, M.D., ...

Scaling the wall of deafness

... involved in the normal development and survival of cells in the inner ear and are necessary for proper hearing," says Prof. Avraham. "Until now ... that microRNA mutations may also cause abnormal development of the inner ear in embryos and deafness in newborns. MicroRNAs are tiny pieces of RNA, ...

Case Western Reserve University receives $1.66m grant from NIH for otoprotection research

... Program (R01) to explore the impact of several molecular pathways on inner ear dysfunction in Ushers syndrome. Usher Syndrome (USH) is a clinically ... or regeneration therapies have not really solved the deafness problem of ear diseases," said Zheng. "An alternative to replacing lost hair cells is to ...

House Ear Institute, TGen and Belgian researchers identify gene in age-related hearing loss

... hearing loss," said Rick Friedman, M.D., Ph.D., lead author and House ear Institute principal investigator and surgeon at the House Clinic. ... that causes damage to the inner and outer hair cells in the inner ear leading to age-related hearing loss. "Finding the genetic causes of ...

Space researchers developing tool to help disoriented pilots

... in craft movement in the atmosphere and in space and how the human inner ear functions in both environments. The inner ear helps control the sense of orientation. The researchers are putting ...

Brain structure provides key to unraveling function of bizarre dinosaur crests

... or warn others of predators. The CT scans documented a delicate inner ear that confirms that the dinosaurs could hear the low-frequency calls ... the available information is put together, including the digital brain and ear casts, the evolutionary relationships of the species, and the growth ...

Killer whales, blind bats, discriminating dolphins, mating birds

... In turn, the bat's auditory representation of space guides its actions: ear movements, head aim, flight path, and the features of subsequent ... instance, sounds emitted by an object to the left will arrive at the left ear a bit sooner and louder (interaural time difference and interaural level ...

Defining gene's role may lead to prevention of dangerous corn toxin

... Woloshuk said. When fusarium invades corn in the field, it causes an ear rot disease. Even knowing that ear rot is present doesn't help identify corn containing toxin because obvious ...

To save or savor? It's decision time for Atlantic bluefin tuna

... is backed up by new studies on the chemical composition of otoliths, or ear bones, by Jay Rooker at Texas A&M University. Rooker can tell where a ... techniques, including genetics and elemental analyses of the ear bone, will be in place within the year to more accurately determine the ...

NOAA science story tips -- AAAS 2008 edition

... are finding trace radiocarbon (C-14) from Cold War nuclear bombs in the ear bones of fish, and turning this artifact of nuclear testing into a ... environment, giving scientists a benchmark level for each year. Fish ear bones, called otoliths, grow in rings similar to annual growth rings found ...

Immunosuppressant further linked to birth defects

... as well as defects of the jaw, eyes and ears, including no external ear canals. At nine months her child was developing normally, although she ... describes these infants, noting that the pattern of cleft lip/palate and ear malformations was seen in every case but one. Although defects of the eye ...

How is that whale listening?

... walls of toothed whales lower jaw and onto the fat body attached to the ear complex. This research shows however that the thin bony walls do not ... In fact they enter through the throat and then pass to the bony ear complex via a unique fatty channel. Despite the Cuviers beaked whale ...

Looking through the eyes of a mouse, scientists monitor circulating cells in its bloodstream

... Initially they designed a device that could focus on a vessel in the ear of a mouse. While effective, this device was limited because the one tiny vessel in the mouses thin external ear did not have enough flow to adequately sample the bloodstream. It was a ...

Tamiflu effective for treatment and prevention of influenza in children 1 year and older

... was also shown to reduce the incidence of respiratory tract infections, ear infections and antibiotic use. In addition this season smaller child sized ... compared to placebo2. In addition there was a 55% reduction in severe ear infections (otitis media) in the Tamiflu group compared to placebo if ...

Shigetada Nakanishi receives $500,000 Gruber Neuroscience Prize

... Medical School researcher Hubert Lim is developing a new kind of bionic ear a device that will restore hearing by bypassing the ear and directly stimulating an area which processes auditory input deep in ...

How sweet is it?

... product. The new simulation model can improve the quality of sweet corn ear growth as well as predicting fresh market yield and fresh market ear quality", he noted. ...

Douglas-fir, geoducks make strange bedfellows in studying climate change

... in the northeastern Pacific Ocean dating back to 1880. When Black first began publishing comparisons of tree rings and the otoliths or ear bones of long-lived fish, he attracted the attention of climate change scientists. "We found that chronologies for rockfish living at the ...

Our brain looks at eyes first to identify a face

... age. "In order to identify a face in an image, the brain always processes information with the same low resolution, of about 30 by 30 pixels from ear to ear, ignoring distance and the original resolution of the image," Keil says. "Until now, nobody had been able to explain this peculiar phenomenon ...

High carbon dioxide levels cause abnormally large fish ear bones

... describes experiments in which fish that were exposed to high levels of carbon dioxide experienced abnormally large growth in their otoliths, or ear bones. Otoliths serve a vital function in fish by helping them sense orientation and acceleration. The researchers had hypothesized that otoliths ...

Discovery of a water snake that startles fish in a way that makes them flee into its jaws

... their brains that initiates the escape, which biologists call the "C-start." Fish ears sense the sound pressure on each side of their body. When the ear on one side detects a disturbance, it sends a message to the fishes' muscles causing its body to bend into a C-shape facing in the opposite direction ...

Wet ear wax and unpleasant body odors signal breast cancer risk

... but most people can't miss unpleasant body odors," said Gerald Weissmann, M.D., Editor-in-Chief of The FASEB Journal , "As it turns out, the type of ear wax one has is linked to a gene that leads to bad odors from one's armpit. These may become lifesaving clues to the early detection and treatment of ...

Study offers clues to beating hearing loss

... the causes of some forms of deafness. The Leeds team has discovered that the myosin 7 motor protein - found in the tiny hairs of the inner ear that pick up sound - moves and works in a different way from many other myosins. Dr Michelle Peckham from the University of Leeds' Faculty of ...

MIT: Using touch to help deaf people

... says Reed. As part of their project, the researchers have done several studies on the frequency reception ability of the skin. The human ear can perceive frequencies up to 20,000 hertz, but for touch receptors in the skin, optimal frequencies are below 500 hertz. Using a laboratory ...

UNH researchers studying spiny dogfish, Gulf of Maine's mini shark

... and examined for bands, or annuli, that are laid down each year. The ages of fish are often determined by the annuli on otoliths (inner ear bones), dorsal or pectoral fin spines. The second dorsal fin spine was previously used to identify the ages of dogfish, but often with imprecise ...

A BBVA Foundation project comes up with a system enabling detection of cetacean hearing loss

... for the purposes of hearing. Instead, they pick up sound waves through their jaws which transmit the information directly to the middle or inner ear where it is processed then relayed to the brain. The work of the BBVA Foundation project team will help develop bioindicators of the damage caused ...

CT scans reveal that dinosaurs were airheads

... that these armored dinosaurs could recognize individuals based on the voice," said Witmer, who noted that his research team's studies of the inner ear revealed a hearing organ that probably had the capability to discriminate these subtle vocal nuances. Though Witmer found few similarities between ...

1,000 tags reveal mysteries of giant bluefin tuna

... Atlantic. The tagging data were recently confirmed using a completely different technique, based on chemical analysis of the tunas' "otoliths," or ear bones, which retain a characteristic chemical signature depending upon where the tuna was originally spawned. A unique aspect of this study, ...

Key to function of dinosaur crests found in brain structure

... calls that could have been used in communication, perhaps to call for mates or warn others of predators. The CT scans documented a delicate inner ear that confirms that the dinosaurs could hear the low-frequency calls produced by the crest. "We were surprised to see just how large the centers of ...

Scientists Find new migratory patterns for Mediterranean and Western Atlantic bluefin tuna

... next highest priority." The authors use a novel approach to investigate migratory behaviors. "We examined the chemical composition of the fish's ear stonethe otolithto identify individuals from different nurseries," said Rooker. "Chemical signatures in the form of stable carbon and oxygen isotope ...

Atlantic tuna return thousands of miles to birthplace to spawn

... "Natal Homing and Connectivity in Atlantic Bluefin Tuna Populations," Rooker and fellow researchers examine the chemical composition of the fish's ear bone the otolith to identify individuals from different nurseries. Chemical signatures in the form of stable carbon and oxygen isotope ratios ...
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