Sentences with phrase «electrical pulses in»

Neuroscientists typically induce electrical pulses in the neurons artificially in order to perform research on synaptic mechanisms.

Every pulse of light reliably triggered one or more electrical pulses in the infected neuron.

Treatments include drugs to regulate the electrical pulses in the upper chambers of the heart and 3/4 increasingly 3/4 catheter ablation.

Not exact matches

Some scientists believe that an electrical apocalypse could really occur, in the event of an electromagnetic pulse attack, described in one 2008 white paper as «a high - intensity burst of electromagnetic energy caused by the rapid acceleration of charged particles.»

Short and low electrical pulses help manage the pain and are best used early on in labor.

Encouraged by initial studies, the Dutch government in 2006 successfully lobbied the European Commission to allow 5 % of each country's fleet to use pulse trawling, exempting them from the European Union's 1988 general ban on electrical fishing.

The hope is to find the equivalent neurons in people, and then to work out how to suppress them, via drugs or electrical pulses, in order to relieve itchiness caused by skin problems such as scabies, eczema and psoriasis.

In Vader's device, an electrically - pulsed magnetic field permeates liquid metal in an ejection chamber and creates circulating electrical currents that interact with the magnetic field to produce a pressure that squeezes a droplet out of the ejector nozzlIn Vader's device, an electrically - pulsed magnetic field permeates liquid metal in an ejection chamber and creates circulating electrical currents that interact with the magnetic field to produce a pressure that squeezes a droplet out of the ejector nozzlin an ejection chamber and creates circulating electrical currents that interact with the magnetic field to produce a pressure that squeezes a droplet out of the ejector nozzle.

The Northwestern team, led by physiologist James Surmeier, reports in the online edition of Nature that the dopamine neurons, which are targeted by Parkinson's, are constantly at work — like a pacemaker — sending the striatum nonstop, electrical pulses.

The human body is a complex electrical network: Nerve cells shuttle signals from the brain, and pulses in the heart cause its muscle cells to expand and contract.

The intense light pulses, with a peak power that briefly exceeds the electrical generating capacity of the entire United States, also sparked fleeting bits of antimatter in their wake.

Biophysicist Benoit Roux of the University of Chicago recently used the world's fastest supercomputer — Jaguar, at Oak Ridge National Laboratory in Tennessee — to see how each of the protein's 350,000 atoms would react to such electrical pulses.

Highly focused magnetic pulses of up to 1.5 teslas induce an electrical current two to three centimeters deep in the left prefrontal section of the cerebral cortex.

In the study, the researchers used electrical pulse to permeate Cpf1 RNPs into up to 50 mouse embryos simultaneously (Fig. 3b).

It is not clear how the lights are produced, but Friedmann Freund of NASA's Ames Research Center in Moffett Field, California, thinks that when rocks in the crust are squeezed, chemical bonds break to produce a pulse of electrical charge that travels up to the surface.

As the name implies, the technique involves electrical currents flowing through electrodes in random pulses, activating neurons in multiple brain areas.

In the study, the researchers show that after two to four weeks of 3 - D culture, the resulting muscle cells form muscle fibers that contract and react to external stimuli such as electrical pulses and biochemical signals mimicking neuronal inputs just like native muscle tissue.

Similar devices are used today to transform the digital 1s and 0s in electrical data into optical pulses that are then sent around the world, forming the backbone of the Internet and long - distance phone lines.

As a read head moves above bits of magnetic data, changes in the magnetic orientation of those bits alter the electrical resistance of electrons flowing through the sensor, translating the magnetic data into a stream of electrical pulses.

The researchers say the electrical pulse temporarily opens pores in the walls of cells, allowing anticancer drugs to slip inside before they close again.

In theory, computers could be made around a thousand times faster by «turbo - charging» their electrical components with light pulses.

This time, they found that young men and young women responded differently, with males showing a greater increase in electrical activity in the brain in response to a TMS pulse.

When engineers flip a switch in 2007, a 12,000 - ampere pulse of electrical power will slam down huge coils of electromagnets, creating fields 100,000 times more powerful than Earth's.

Subjected to an electrical pulse, cells in a developing frog gut or tail would form what looked like normal eyes.

«In contrast to conventional electronics, we developed an all - optical scheme for controlling individual quantum bits in semiconductors using pulses of light,» said David Awschalom, director of UCSB's Center for Spintronics & Quantum Computation, professor of physics and of electrical and computer engineering, and the Peter J. Clarke director of the California NanoSystems InstitutIn contrast to conventional electronics, we developed an all - optical scheme for controlling individual quantum bits in semiconductors using pulses of light,» said David Awschalom, director of UCSB's Center for Spintronics & Quantum Computation, professor of physics and of electrical and computer engineering, and the Peter J. Clarke director of the California NanoSystems Institutin semiconductors using pulses of light,» said David Awschalom, director of UCSB's Center for Spintronics & Quantum Computation, professor of physics and of electrical and computer engineering, and the Peter J. Clarke director of the California NanoSystems Institute.

Neuroscientists believe that memory forms when neurons in these key brain structures are simultaneously activated by glutamate and an electrical pulse, a result of everyday sensory experience.

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.

These electrical pulses travel along specialized extensions called axons to cause the release of chemical signals elsewhere in the brain.

Even after complete spinal paralysis, the human spinal cord is able to trigger activity in the leg muscles using electrical pulses from an implanted stimulator.

In a real brain, neurons receive electrical pulses from synapses until a sufficient voltage builds up across their membrane.

«The fact that we can induce a short seizure, of approximately 1 to 3 minutes long, with the exact timing of an electrical pulse, and that these worms react well to antiepileptic drugs, makes this new assay a perfect model for high - speed drug screens in multi-welled plate readers,» said Ken Dawson - Scully, Ph.D., corresponding author and associate professor in the Department of Biological Sciences and associate director of the FAU Brain Institute.

Then they pulsed electrical current — similar to the current in a brain — through each slice and measured the strength of the electrical signal in the synapses.

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

When these photoreceptors detect light, they send a signal to specialized neurons in the retina called retinal ganglion cells, or RGCs, which then transmit visual information to the brain by firing electrical pulses along the optic nerve.

In healthy hearts, a few thousand cells in two key locations trigger electrical pulses that spread to the remaining cells, signaling them to contract and make the heart beaIn healthy hearts, a few thousand cells in two key locations trigger electrical pulses that spread to the remaining cells, signaling them to contract and make the heart beain two key locations trigger electrical pulses that spread to the remaining cells, signaling them to contract and make the heart beat.

The weight loss and adverse events of 157 patients who received the active Maestro device (the experimental group) were compared to 76 patients in the control group who received a Maestro electrical pulse generator that was not activated.

Electrical pulses slowly convert the material from amorphous to crystalline, which, in turn, changes its conductance.

A team at the University of Leeds used a standard TENS machine like those designed to relieve labour pains to apply electrical pulses to the tragus, the small raised flap at the front of the ear immediately in front of the ear canal.

The new cells started pulsing in unison with the rat cells, indicating that they'd formed successful electrical connections.

One output of the booster is wired to the device's shell — or «grounded,» in technical speak — while the other goes to an array of 12 fine, stainless steel needles that create a rapidly pulsing electrical discharge.

British biophysicist Alan Lloyd Hodgkin won the shiny gold medal in 1963 for discovering how the nerve cells of squid generate an electrical pulse when stimulated

Delivering electrical pulses to this region on detecting this activity reduced binge - eating behavior in mice.

Electrical and chemical activities in the neurons could then be activated or switched off by pulses of light delivered via a fiber - optic cable implanted in each mouse's skull, a technique known as optogenetics.

The pulses diffuse into the brain until the micropipette nears a neuron, which creates a block in electrical signal that tells the human or robot operator when to stop moving the micropipette.

When these cells are illuminated by a strong light, a change in the structure of melanopsin triggers a molecular cascade that eventually leads to an influx of calcium ions into those neurons and an electrical pulse.

A stimulus of electrical pulses was used to activate the part of the brain that controls movement in the right thumb.

In the BrainPort V100 vision aid system, a video camera positioned between the eyes connects to a processor that feeds electrical pulses to a plate on the tongue, where a dense network of sensory nerves picks up tiny stimuli.

A medical procedure, ECT uses brief, low - energy electrical pulses to stimulate nerve - cell activity in the area of the brain that affects mood.

Dr. Stanislav Adamenko, the laboratory's scientific director, believes that these experiments are microscopic analogs of events occurring in supernovas and other phenomena involving Z - pinched electrical pulses.36

As the team hypothesized, when the patient was close to receiving the reward, a receiver detected this electrical pulse, or biomarker, in his brain.