News tagged with oscillator
Engineer Discovers Why Particles Like Flour Disperse on Liquids
(PhysOrg.com) -- Even if you are not a cook, you might have wondered why a pinch of flour (or any small particles) thrown into a bowl of water will disperse in a dramatic fashion, radiating outward as if it ...
Nov 16, 2009 |
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North Atlantic fish populations shifting as ocean temperatures warm
About half of 36 fish stocks in the Northwest Atlantic Ocean, many of them commercially valuable species, have been shifting northward over the last four decades, with some stocks nearly disappearing from U.S. waters as they ...
Nov 02, 2009 |
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NASA technology key component of new diagnostic aid from DynaDx
NASA technology will now be available to the medical community to help in the diagnosis and prediction of syndromes that affect the brain, such as stroke, dementia, and traumatic brain injury.
Medicine & Health / Medical research
Oct 20, 2009 |
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Study provides new insights into marine ecosystems and fisheries production
NOAA and Norwegian researchers recently completed a comparative analysis of marine ecosystems in the North Atlantic and North Pacific to see what factors support fisheries production, leading to new insights that could improve ...
Sep 30, 2009 |
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Magnetic Resonance Now Also Comes In Tiny Quantities
(PhysOrg.com) -- It is now possible to analyse very small samples using Nuclear Magnetic Resonance. Thanks to a specially constructed detector, a 'stripline', greater sensitivity can be achieved while maintaining the same ...
Sep 29, 2009 |
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National Semiconductor Introduces Industry's Lowest-Noise Frequency Synthesizer
National Semiconductor today announced the industry’s lowest-noise, fully integrated frequency synthesizer. The PowerWise LMX2541 provides less than 2 milli-radians (mrad) root-mean-square (rms) noise at 2.1 ...
Jul 06, 2009 |
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Physicists demonstrate quantum entanglement in mechanical system
Physicists at the National Institute of Standards and Technology have demonstrated entanglement--a phenomenon peculiar to the atomic-scale quantum world--in a mechanical system similar to those in the macroscopic ...
Jun 03, 2009 |
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MicroRNAs grease the cell's circadian clockwork
Most of our cells possess an internal clock, a group of genes displaying a cyclic expression pattern that reaches a peak once a day. A large number of circadian genes are expressed by organs such as the liver, whose activity ...
May 31, 2009 |
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Long-distance brain waves focus attention (w/Video)
(PhysOrg.com) -- Just as our world buzzes with distractions -- from phone calls to e-mails to tweets -- the neurons in our brain are bombarded with messages. Research has shown that when we pay attention, some of these neurons ...
Medicine & Health / Neuroscience
May 28, 2009 |
4.3 / 5 (6) |
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Circadian rhythms studies reveal new temperature regulator and track clock protein across a day
Dartmouth Medical School geneticists have made new inroads into understanding the regulatory circuitry of the biological clock that synchronizes the ebb and flow of daily activities, according to two studies published May ...
May 15, 2009 |
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Making waves in the brain: Researchers use lasers to induce gamma brain waves in mice
Scientists have studied high-frequency brain waves, known as gamma oscillations, for more than 50 years, believing them crucial to consciousness, attention, learning and memory. Now, for the first time, MIT researchers and ...
Medicine & Health / Neuroscience
Apr 26, 2009 |
5 / 5 (5) |
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More than one nanostring to their bow: Scientists moving closer to 'artificial noses'
These days, chemical analysts are expected to track down even single molecules. To do this highly sensitive detective work, nano researchers have developed minute strings that resonate in characteristic fashion. If a molecule ...
Apr 23, 2009 |
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Atlantic dynamo turned up the heat over Medieval Europe
(PhysOrg.com) -- In the April 3rd edition of Science a collaborative group of scientists from Switzerland, California and the UK report that medieval climate over Europe was heated by the North Atlantic Oscillation (NAO). ...
Space & Earth / Earth Sciences
Apr 03, 2009 |
4.1 / 5 (11) |
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Atomic fountain clocks are becoming still more stable
They are at present the most accurate clocks in the world: Caesium fountain clocks furnish the second accurate to 15 places after the decimal point. Until they reach this accuracy, caesium fountain clocks, however, need a ...
Mar 18, 2009 |
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Study links swings in North Atlantic oscillation variability to climate warming
Using a 218-year-long temperature record from a Bermuda brain coral, researchers at the Woods Hole Oceanographic Institution (WHOI) have created the first marine-based reconstruction showing the long-term behavior of one ...
Space & Earth / Earth Sciences
Jan 13, 2009 |
4.1 / 5 (18) |
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