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Tone in Biological News

Scientists discover important beauty secret for balanced skin color and tone

In the timeless quest for healthier, younger looking skin, scientists from the University of Cincinnati and Tokyo Medical University have made an important discovery toward manipulating skin tone and color. The implications of this research range from helping doctors develop more natural looking b...

Music is the engine of new U-M lab-on-a-chip device

...channel. The air then nudges the droplets in the microfluidic device along. "Each resonance cavity on the device is designed to amplify a specific tone and turn it into a useful pressure," Langelier said. "If I play one note, one droplet moves. If I play a three-note chord, three move, and so on. And ...

Heart protein regulates blood vessel maintenance

...the regulation of vasomotor tone, or the contraction and relaxation of muscles in the blood vessel. This is important because dysfunction in vasomotor tone is thought to cause high blood pressure. Our study demonstrates that FHL2 is essential in modulating the physical state of vSMCs, which is essential i...

Genetic study confirms the immune system's role in narcolepsy

...AID), all components of NIH. The new study, which appears today in Nature Genetics , focused on narcolepsy with cataplexy a sudden loss of muscle tone that can cause a person to collapse, with or without falling asleep. About 1 in 2,000 Americans have narcolepsy-cataplexy. The symptoms of narcolepsy...

Laughing hyenas, wailing levees, the sound of cheese and blaring bagpipes

...Ohio, who study "looming" sounds. Participants in their study listened to a tone moving toward them and pressed a button when they thought the sound had arr...p.org/web2/asa/abstracts/search.may09/asa730.html The talk "Tuning and tone quality of bagpipe drones" (3Pmua3) by R. Dean Ayers et al is at 2:00 p.m. ...

Brain music

... Every brain has a soundtrack. Its tempo and tone will vary, depending on mood, frame of mind, and other features of the brain itself. When that soundtrack is recorded and played back -- to an emerge...

New aerosol observing technique turns gray skies to blue

...cific directions to pass. According to Brian Cairns, an aerosol climatologist at GISS who has pioneered the technique, polarized images have a dull tone that make the subtle hues of aerosols easier to detect amidst the shades of gray land. "The blueish tint of small aerosols in the atmosphere is mor...

High Performance, Low-Cost VoIP Chips Address Critical Performance Issues Such as Echo, Latency, and Packet Loss

...ruments Incorporated (TI) high performance fixed-point TMS320C64x+(TM) DSPs. The feature rich VoIP chips include all of the telephony, signaling, tone and voice processing (codecs) necessary to each VoIP application, enabling equipment manufacturers to develop products quickly and cost-effectively. ...

Mosquitoes create harmonic love song before mating, study finds

...ovide new ways to better control of mosquito populations in places where yellow and dengue fevers are significant problems. "By studying these flight tone signals, we may be able to determine what kind of information males and females consider important when choosing a mate," said co-first author Lauren ...

American Library Association names NJIT prof’s Whale Music book a top ten

...come a valuable tool that helps librarians make reading recommendations. Rothenberg's previous recordings include On the Cliffs of the Heart (New tone Records, 1995) featuring percussionist Glen Velez and banjo player Graeme Boone. The work, praised by composer John Cage, was named a top ten release...

Acoustical Meeting, Nov. 10-14, 2008 in Miami, Florida

...University has investigated how native speakers of tone and non-tone languages perceive musical pitch. tone languages like Mandarin Chinese use pitch to diffe..., possibly due to their experience with linguistic tone discrimination. The results of this study coul...

Early parenting plays key role in infants' physiological response to stress

...osed to the stressor, isolating a cardiac response called vagal tone. Vagal tone acts like a brake on the heart when the body is in a calm state, but during... display an effective cardiac response to the stressor (a decrease in vagal tone which takes the brake off the heart so it can respond appropriately), while...

'Perfect pitch' in humans far more prevalent than expected

...d a unique test for perfect pitch, and have found surprising results. Their research shows that perfect pitchthe ability to recognize and remember a tone without a referenceis apparently much more common in non-musicians than scientists had expected. Previous tests have overlooked these people because w...

Diabetes makes it hard for blood vessels to relax

...opkins researchers reported that a clinical trial of patients taking an L-arginine supplement following a heart attack didnt improve in their vascular tone or their hearts ability to pump. In fact, more patients died who were taking L-arginine than placebo and the study was closed with the recommendation ...

The human brain: Detective of auditory and visual change

...o determine if the brain uses similar mechanisms to perceive auditory changes as it does with vision. Participants had to detect a pitch change in one tone presented together with other tones. The complexity of the pre-change sound was varied, as well as the duration of the silent interval between the pre...

Hearing changes how we perceive gender

...ed feelings that occur when you meet someone whose tone of voice doesnt seem to quite fit with his or her ...at when an androgynous face was paired with a pure tone that fell within the female fundamental-frequency ...ale. But when the same face was paired with a pure tone in the male fundamental-frequency range, people we...

Mutation improves memory, may lead to memory-enhancing pill

...med better than normal mice in a "fear-conditioning" test. In that test, animals are put into a cage followed by a mild foot shock or are exposed to a tone paired with a foot shock. Their memory for the earlier bad experience is determined based on how much they freeze in response to the "scary" place or ...

Research finds music training 'tunes' human auditory system

... English speakers with no knowledge of Mandarin, a tone language. In tone languages, a single word can differ in meaning dep...ample, the Mandarin word "mi" delivered in a level tone means "to squint," in a rising...

How does your brain tell time?

...ic event is encoded within the context of events that precede it. In other words, if one could measure the response of many neurons in the brain to a tone or a flash of light, the response would not only reveal the nature of the event, but the other events that preceded it and when they occurred. Th...

Researchers discover mechanism that determines when detailed memories are retained

... of that process." In their experiments, the researchers exposed rats to tones of various frequencies. During some of the trials, they paired one tone with stimulation of a section of the rats' brains known as the nucleus basalis, which relays commands to the auditory cortex by secreting acetylcholin...

How blood flow dictates gene expression

...high cardiac output, as measured by ultrasound, while the overall structure of their blood vessels was normal. These findings implicate loss of vessel tone as the primary defect in Klf2 knockout mice. Now that Klf2 has been established as an important regulator of blood flow in live animals and is r...

New understanding of parasite cell structures may provide treatments for serious tropical diseases

...ger Syndrome. According to the National Institute of Neurological Disorders and Stroke, symptoms of this disorder at birth "may include lack of muscle tone and an inability to move. Other symptoms may include unusual facial characteristics, mental retardation, seizures and an inability to suck and/or swal...

Brain enzyme treatment relieves memory lapse in Alzheimer's mice

...r fear conditioning, mice treated with the Uch-L1 inhibitor and control mice were placed in a novel context (a fear-conditioning box) and exposed to a tone paired with a mild foot shock. Their ability to learn fear was tested 24 hr later by measuring "freezing" behavior in response to the box or the audit...

Science finds new fix for UV-damaged skin in arthritis treatment

...ows up as unsightly dark splotches and uneven skin tone over time. But new research indicates that glucosa..., showed improvement in hyperpigmentation and skin tone and a decrease in the size of age spots. The resea... from other ingredients when it comes to improving tone and treating hyperpigmentation." ...

Gene controls whether fear is a factor

...sis for learning and memory. To relate these brain abnormalities to behavior, the team then exposed normal and stathmin-deficient mice to a neutral tone while delivering a mild electric shock. While both groups displayed some fear response by freezing immediately after a shock and later after hearing t...

Study identifies gene in mice that may control risk-taking behavior in humans

... were exposed to an adverse stimulus coupled with a non-adverse stimulus, a tone followed by a mild foot shock. Normal mice crouch down and stop moving the ...owever, those with a single copy of the neuroD2 gene did not respond to the tone like the normal mice did, researchers found. These mice did not freeze thei...

A little stress gives beneficial oomph! to immune system

...he immune response when it could be most helpful to do so, such as during surgery, vaccination or infection," Dhabhar said. "And it could also help us tone down the immune response during inflammatory diseases." Dhabhar and Kavitha Viswanathan, a graduate research associate in oral biology at Ohio Stat...

Revolutionary nanotechnology illuminates brain cells at work

...o continued. "If you excite one, it gives a characteristic tone. If you bring the second fork close to the first one, it will also start to give you a tone even though they do not touch. This is resonance energy transfer." FRET is used to track the form of proteins that specifically bind metabolites su...
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