Sentences with phrase «electrical waves in»

Electrical waves in muscle let your heart beat steadily — unless something goes wrong.

Not exact matches

The EEG promptly reads these electrical waves and relates them to memory, emotions and attention according to the activity in specific areas of the brain.

A mechanistic physiologist analyses my sitting at my word processor in terms of light waves hitting my retina from the keyboard and the screen which then set in train chemical and electrical processes in my nerves and brain.

«This is a big step in determining the identity of key components of the molecular machinery that converts sound waves into electrical signals in the inner ear,» said the study's co-senior author, Gregory Frolenkov, of the Department of Physiology at the University of Kentucky.

These materials are also used in everyday devices, such as loudspeakers, which rely on piezoelectrics to convert electrical signals to mechanical vibrations which create sound waves to produce the desired acoustic signal.

During REM sleep, the brain generates high - frequency waves of electrical activity and the eyes flicker; in humans, REM is closely linked to dreaming.

In 2011 researchers found that these waves of electricity cause neurons in the hippocampus, the main brain area involved with memory, to fire backward during sleep, sending an electrical signal from their axons to their own dendrites rather than to other cellIn 2011 researchers found that these waves of electricity cause neurons in the hippocampus, the main brain area involved with memory, to fire backward during sleep, sending an electrical signal from their axons to their own dendrites rather than to other cellin the hippocampus, the main brain area involved with memory, to fire backward during sleep, sending an electrical signal from their axons to their own dendrites rather than to other cells.

In recent papers, Miller argues that there's still a lot to learn from the intermittent electrical currents called oscillations, or brain waves.

While these brain rhythms, occurring hundreds of times a night, move in perfect lockstep in young adults, findings published in the journal Neuron show that, in old age, slow waves during non-rapid eye movement (NREM) sleep fail to make timely contact with speedy electrical bursts known as «spindles.»

To amplify slow waves and get them into optimal sync with spindles, researchers plan to apply electrical brain stimulation to the frontal lobe in future experiments.

At the University of Lübeck in Germany, neuroscientist Jan Born studies the deepest stage of sleep, known as the slow - wave stage because of its characteristic electrical rhythm.

T - ray test Clough, an R.P.I. doctoral student in electrical, computer and systems engineering who hopes to complete his PhD within a year, has demonstrated a cost - effective technique for using sound waves to boost the effective distance of terahertz spectroscopy from less than a meter to several meters.

Brown and his colleagues have previously analyzed the electrical waves produced by the brain in different states of activity.

Led by Professor Christopher James, Director of Warwick Engineering in Biomedicine at the School of Engineering, technology has been developed which allows electronic devices to be activated using electrical impulses from brain waves, by connecting our thoughts to computerised systems.

NiO is a promising material for spintronic devices, where signals are transmitted not by electrical currents but rather by spin waves, consisting of propagating disturbances in the ordering of magnetic materials, in a domino - like fashion.

The rise and fall with each wave alternately pressurizes and depressurizes the air at the top, which can drive a turbine; Wavegen in Scotland, partly owned by Siemens, the giant electrical company, recently opened a 100 - kilowatt generator based on this system.

In a normal heart (above), the electrical activity (shown in blue) sweeps across cardiac muscles in one quick wavIn a normal heart (above), the electrical activity (shown in blue) sweeps across cardiac muscles in one quick wavin blue) sweeps across cardiac muscles in one quick wavin one quick wave.

The changes to and propagation of light waves in an electrical field take place on a time scale of a few hundred attoseconds — in other words, within one billionth of a billionth of a second.

The EPOC detects brain activity noninvasively using electroencephalography (EEG), a measure of brain waves, via external sensors along the scalp that pick up the electrical bustle in various parts of the furrowed surface of the brain's cortex, a region that handles higher order thoughts.

In deep, slow - wave sleep, recordings of the brain's electrical activity show sparse bursts of big, slow waves.

In a new paper, electrical engineers at Duke University demonstrate the first completely dielectric (non-metal) electromagnetic metamaterial — a surface dimpled with cylinders like the face of a Lego brick that is designed to absorb terahertz waves.

Shock waves created by electrical impulses in a water bath separate the individual components at their predetermined break points.

So far, electrical circuits based on spin waves have not been realised, since it turned out to be impossible to introduce a perturbation in the system large enough to create spin waves.

Croft believes the heightened alpha waves reflect the mind concentrating to overcome the electrical interference in brain circuits caused by the pulsed microwave radiation from cell phones.

Later, when the rats were asleep and their brain waves indicated that they had entered the stage in which humans normally dream, these same electrical patterns appeared.

When the antenna sends out a signal, information travels in the reverse direction, from electrical voltage to vibrations to EM waves.

In addition, during sleep the brain - wave patterns of dogs are similar to people's, and they exhibit the same stages of electrical activity that are observed in humans — all of which is consistent with the idea that dogs are dreaminIn addition, during sleep the brain - wave patterns of dogs are similar to people's, and they exhibit the same stages of electrical activity that are observed in humans — all of which is consistent with the idea that dogs are dreaminin humans — all of which is consistent with the idea that dogs are dreaming.

Last year, Albert Polman at the FOM Institute for Atomic and Molecular Physics in Amsterdam and Nader Engheta, an electrical engineer at the University of Pennsylvania, developed a tiny waveguide device in which light waves of a single wavelength also achieved epsilon - near - zero.

In a project funded by electronics giant Samsung, a team of Penn State materials scientists and electrical engineers has designed a mechanical energy transducer based on flexible organic ionic diodes that points toward a new direction in scalable energy harvesting of unused mechanical energy in the environment, including wind, ocean waves and human motioIn a project funded by electronics giant Samsung, a team of Penn State materials scientists and electrical engineers has designed a mechanical energy transducer based on flexible organic ionic diodes that points toward a new direction in scalable energy harvesting of unused mechanical energy in the environment, including wind, ocean waves and human motioin scalable energy harvesting of unused mechanical energy in the environment, including wind, ocean waves and human motioin the environment, including wind, ocean waves and human motion.

In contrast to the variable radio waves of analog broadcasting, digital TV (or DTV) uses electrical pulses to transmit information precisely and efficiently.

The findings, in the Journal of Neuroscience, builds on Durand's work published late last year, identifying brain waves that appear to be spread through a mild electrical field — not the known transmissions through synapses, diffusion or gap junctions.

«The oscillating electrical field in the incoming light wave produces a force on the charges inside the mirror.

A spin wave can be thought of as similar to an ocean wave, which keeps water molecules in essentially the same place while the energy is carried through the water, as opposed to an electric current, which can be envisioned as water flowing through a pipe, said principal investigator Kang L. Wang, UCLA's Raytheon Professor of Electrical Engineering and director of the Western Institute of Nanoelectronics (WIN).

Mirkin's team used the technique, reported online this month in Nature Communications, to make working electrical devices including inductors, capacitors, and surface acoustic wave transducers, and even drew a 9 - millimeter - square map of the world.

The cochlea has the all - important job of transforming mechanical energy in the form of sound waves into electrical signals that run along auditory nerves to the brain.

Previous studies have shown that when a typically developing 20 - month - old child hears a word that she doesn't know, a characteristic uptick in brain waves in the left hemisphere of the brain can be detected through electroencephalography (EEG), a noninvasive method of measuring the brain's electrical activity.

A team of researchers have invented a new method to identify the origin of irregular electrical «storm waves» in the heart.

In the journal Applied Physics Letters, which is produced by AIP Publishing, the scientists describe the theoretical framework for an acoustic diode — a device that achieves a one - way transmission of sound waves much the same as an electrical diode controls the one - way transmission of electrical impulses.

Once they did that, they saw that the overall electrical activity in their model of 12,000 neurons was akin to observations of brain activity in rodents, hinting at the origin of brain waves.

Andrea Alù (The University of Texas at Austin)-- Electrical engineer Dr. Alù has made seminal contributions to the theory and engineering of metamaterials and introduced new concepts to create metamaterials that mold electromagnetic waves, light and sound in unusual ways.

g (acceleration due to gravity) G (gravitational constant) G star G1.9 +0.3 gabbro Gabor, Dennis (1900 — 1979) Gabriel's Horn Gacrux (Gamma Crucis) gadolinium Gagarin, Yuri Alexeyevich (1934 — 1968) Gagarin Cosmonaut Training Center GAIA Gaia Hypothesis galactic anticenter galactic bulge galactic center Galactic Club galactic coordinates galactic disk galactic empire galactic equator galactic habitable zone galactic halo galactic magnetic field galactic noise galactic plane galactic rotation galactose Galatea GALAXIES galaxy galaxy cannibalism galaxy classification galaxy formation galaxy interaction galaxy merger Galaxy, The Galaxy satellite series Gale Crater Galen (c. 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(1940 ---RRB- Gauer - Henry reflex gauge boson gauge theory gauss (unit) Gauss, Carl Friedrich (1777 — 1855) Gaussian distribution Gay - Lussac, Joseph Louis (1778 — 1850) GCOM (Global Change Observing Mission) Geber (c. 720 — 815) gegenschein Geiger, Hans Wilhelm (1882 — 1945) Geiger - Müller counter Giessler tube gel gelatin Gelfond's theorem Gell - Mann, Murray (1929 ---RRB- GEM «gemination,» of martian canals Geminga Gemini (constellation) Gemini Observatory Gemini Project Gemini - Titan II gemstone gene gene expression gene mapping gene pool gene therapy gene transfer General Catalogue of Variable Stars (GCVS) general precession general theory of relativity generation ship generator Genesis (inflatable orbiting module) Genesis (sample return probe) genetic code genetic counseling genetic disorder genetic drift genetic engineering genetic marker genetic material genetic pool genetic recombination genetics GENETICS AND HEREDITY Geneva Extrasolar Planet Search Program genome genome, interstellar transmission of genotype gentian violet genus geoboard geode geodesic geodesy geodesy satellites geodetic precession Geographos (minor planet 1620) geography GEOGRAPHY Geo - IK geologic time geology GEOLOGY AND PLANETARY SCIENCE geomagnetic field geomagnetic storm geometric mean geometric sequence geometry GEOMETRY geometry puzzles geophysics GEOS (Geodetic Earth Orbiting Satellite) Geosat geostationary orbit geosynchronous orbit geosynchronous / geostationary transfer orbit (GTO) geosyncline Geotail (satellite) geotropism germ germ cells Germain, Sophie (1776 — 1831) German Rocket Society germanium germination Gesner, Konrad von (1516 — 1565) gestation Get Off the Earth puzzle Gettier problem geyser g - force GFO (Geosat Follow - On) GFZ - 1 (GeoForschungsZentrum) ghost crater Ghost Head Nebula (NGC 2080) ghost image Ghost of Jupiter (NGC 3242) Giacconi, Riccardo (1931 ---RRB- Giacobini - Zinner, Comet (Comet 21P /) Giaever, Ivar (1929 ---RRB- giant branch Giant Magellan Telescope giant molecular cloud giant planet giant star Giant's Causeway Giauque, William Francis (1895 — 1982) gibberellins Gibbs, Josiah Willard (1839 — 1903) Gibbs free energy Gibson, Edward G. (1936 ---RRB- Gilbert, William (1544 — 1603) gilbert (unit) Gilbreath's conjecture gilding gill gill (unit) Gilruth, Robert R. 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To study this, they performed electroencephalogram (EEG) recordings — a technique that detects abnormalities in the brain's electrical waves such as those found in patients with epilepsy.

Conversely, de-synchronizing or disrupting the timing of the brain waves in these regions impaired participants» ability to learn and control their behavior, an effect that Reinhart could quickly fix by changing how he delivered the electrical stimulation.

In ALMA, the observed radio waves are divided into 10 frequency bands and then converted into electrical signals.

And very precise changes in the aim and strength of the light could affect the electrical waves.

Wireless devices emit unhealthy positive ions and also interfere with the waves in our own bodies, such as our brain waves and the electrical system that runs our cells.

In migraine with aura, many researchers now believe, a wave of electrical activity begins — usually at the part of the brain responsible for vision in the occipital lobe, at the back of the head — and then spreads forward over the brain's surfacIn migraine with aura, many researchers now believe, a wave of electrical activity begins — usually at the part of the brain responsible for vision in the occipital lobe, at the back of the head — and then spreads forward over the brain's surfacin the occipital lobe, at the back of the head — and then spreads forward over the brain's surface.

Our bodies and cells have electrical energy, and especially with the high prevalence of Electromagnetic waves, Wi - Fi and mobile phone waves, many of us have a high amount of positive electrons built up in our bodies.

In our practice, we utilize hydrotherapy by alternating hot and cold towels on the torso in conjunction with an electrical sine wave machine that acts as a gentle massage to stimulate circulation and promote natural detoxificatioIn our practice, we utilize hydrotherapy by alternating hot and cold towels on the torso in conjunction with an electrical sine wave machine that acts as a gentle massage to stimulate circulation and promote natural detoxificatioin conjunction with an electrical sine wave machine that acts as a gentle massage to stimulate circulation and promote natural detoxification.

The actual ear takes sound waves that vibrate at a specific frequency and transmutes that vibration in the inner hear to a electrical vibration, a liquid medium that stimulates brain reactions, that is assessed until there is a rhythm or pattern found that the brain understands.