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Tag: "noisy" at biology news

Keeping the body in sync -- The stability of cellular clocks

...rcadian clocks manage to keep accurate time in the noisy cellular environment. In an article appearing Ma...ocks to sustain accurate 24-hour rhythms in such a noisy environment? Using mouse fibroblast circadian bioluminescence recordings from the Schibler Lab a...

Lizards 'shout' against a noisy background

... predator. But their forest home can be a visually noisy environment, with branches and leaves waving in the breeze and casting patterns of light and shade. "They have to have a strategy to get their message across," Ord said. Ord videotaped two species of anole lizards, Anolis cristatellus and Anoli...

Cities change the songs of birds

...ributes of city birds that allow them to adjust to noisy urban environments. The findings, reported by Hans...ted the possibility that in general, great tits in noisy cities sing higher than great tits in quieter forests: In other words, songs undergo a habitat-depen...

Train your brain to hear your friends at a party

...on of the brain that helps us to hear someone in a noisy place, such as a party or bar, and is responsible ...ons. Not being able to hear a person's voice in a noisy room and follow conversations is one of the most common problems for Britain's nine million people w...

New dyslexia theory blames 'noise'

...o longer compensate. "What is important is that noisy environments are the rule and not the exception," he added, citing a study from South Bank University in the U.K. that found average noise levels in primary classrooms to be as high as near a busy intersection. "What Sperling and Lu's data sugges...

A simple feedback resistor switch keeps latent HIV from awakening

...rolling viral dormancy. Finally, simulations under noisy conditions predicted that this simple resistor system was better able to resist environmental fluctuations than hypothetical oligomer-dependent switches, and cell-sorting experiments confirmed this prediction. This simple switch, in which the deac...

Nicotine exposure during development leads to hearing problems

...They may have difficulty understanding speech in a noisy environment, not understand information that is presented verbally, and may not be able to tell the difference between similar sounds. "This study is significant because it suggests to us precisely what aspect of smoking is so harmful in pregnancy ...

Rare Chinese frogs communicate by means of ultrasonic sound

...ngs, a popular scenic mountainous area, alive with noisy waterfalls and wildlife west of Shanghai. "Nature has a way of evolving mechanisms to facilitate communication in very adverse situations," Feng said. "One of the ways is to shift the frequencies beyond the spectrum of the background noise. Mammals ...

Engineers discover why toucan beaks are models of lightweight strength

...involved in crashes." Toucans are highly social, noisy residents of rainforests in the Amazon, although the birds live as far north as Mexico. They use their extremely large and often brightly colored beaks for a variety of purposes, from gathering fruit from the tips of tree branches, to defending thems...

Sooner is better with cochlear implants, Stanford scientist shows

...ine - that's why we can talk on telephones. But in noisy situations, when hearing is poor, our brains rely heavily on lip and facial movements to figure out what someone is saying. Knudsen has a long history of studying the ability of the brain to adapt to new circumstances and learn new skills. But most ...

Researchers develop new method to help find deadly malaria parasite's Achilles heel

... said Ideker. "But whether they are incomplete and noisy in the same way or not, we can say with confidence that this particular stage of Plasmodium is different from the other organisms we've examined so far. It's this lack of overlap with other species that's surprising." Ideker said the Plasmodium's me...

Expert dispels bird flu paranoia

...lu symptoms in poultry such as coughing, sneezing, noisy breathing, increased tear production, swollen sinuses and head, decreased egg production, diarrhoea, convulsions, head arched backwards, unable to fly or walk properly, facial and comb swelling and mouth and comb turning blue and report any worries t...

Phenotype is influenced by nature, nurture and noise

...e genetic level, it is important to zoon in on the noisy details of gene expression to explain the variability that we couldn't otherwise account for." ...

Zooming in on the protein-conducting channel

...lex in two different states from the low-contrast, noisy images produced by the electron microscope. “What we have achieved is a huge jump in resolution of this complex,?said Frank. “Even so, this resolution would not allow us to study the complex in atomic detail, or even see individual helices.?He said ...

Life detection instrument passes key test on road to Mars

...mshackle building at a deserted crossroads. With a noisy Honda generator providing power, they set up their experiments and, with six other colleagues, tested the integrated subcritical water extractor together with the MOA on samples from popular test sites such as the "Rock Garden" and the "Soil Pit." O...

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