Tag: "electrical" at biology news
Talented sniffer: A receptor known for guiding sperm to egg plays a role in the nose
...ceptor in a simple "sniffing test" as well as with electrical
recordings from nasal sensory tissue (by electro-olfactogram). The findings show that, interestingly, the basic receptor function of hOR17-4 seems to be identical in both human sperm and olfactory neurons. In light of their findings, the authors prop...
Plants provide model for new shape-changing materials
...al with a surface that's controlled by sensors and electrical
conductors that allow it to do that sensing and change shape accordingly. Properly engineered nastic materials might allow sensors that can be flexed. Don Leo, professor of mechanical engineering and a member of the Center for Intelligent Materials S...
Brain circuit may permit scientists to eavesdrop on memory formation
...ts, Remondes perfected a technique to make precise electrical
lesions of the TA projection in the brains of rats... the researchers tested the rats the day after the electrical
lesions were made, they still recalled the platform's location. But they lost that memory four weeks...
Society for Psychophysiology Research
...e outcome? To examine this, investigators recorded electrical
brain waves as participants completed a police training video game. Participants viewed pictures of Black and White men holding either guns or innocuous objects like cell phones and wallets and made quick decisions to 'shoot' armed individuals and '...
Electronics recycling made easy
...customers as well as through traditional lighting, electrical
and specialty distributors. "We work closely with our distributors", stated Mike Berens. "We have been refining our program for a year now, and we believe that what we have today is the best in the industry. OnyxPak TM has been packaged in a manner ...
New method identifies chromosome changes in malignant cells
...wis-Sigler fellow Maitreya Dunham and professor of electrical
engineering Sun-Yuan Kung. The researchers applied their technique to yeast cells as well as human breast cancer cells and found many previously unknown additions and deletions. The results support an idea proposed by some biologists that chromosome ...
Channel protein converts vibrations to electrical signal
...rm the mechanical stimulus of a sound wave into an electrical
signal recognizable by the brain. The protein form...n channel that opens in response to sound, causing electrical
impulses that communicate the pitch, volume, and duration of a sound to the brain. Scientists have ...
Where in the brain decisions are made
... had the monkeys play the game while they recorded electrical
activity from the lateral intraparietal area. A co...target to look at. And, the researchers found, the electrical
activity of neurons in the lateral intraparietal region did indicate that it was involved in making ...
NHGRI seeks next generation of sequencing technologies
... which a nanopore is used to simultaneously detect electrical
and fluorescent signals from many nanopores at one...les with attached nanoparticles. Understanding the electrical
signals produced by, and the limits of this technology will contribute to next-generation devices wi...
Researchers find protein that makes long-term memory possible
...Briefly, neurons communicate via a relay system of electrical
impulses and specialized molecules called neurotransmitters. A neuron generates an electrical
impulse, causing the cell to release its neurotransmitters. The neurotransmitters, in turn, bind to...
Biomedical engineers at case develop first sliver-sized sensor to monitor glucose levels
...sor that would generate color change instead of an electrical
current. "We also thought that color can be seen ...ection. The device also is advantageous because no electrical
currents are going through the body. Gratzl says lab testing and in vivo testing of the sensor in l...
Study is looking at ways to help stroke survivors regain lost motor skills
... use of their hands or arms through treatment with electrical
stimulation. Preliminary results of the feasibili...precedes this new study have shown that the use of electrical
stimulation, called motor cortex stimulation, may be both safe and effective, according to Robert Le...
UF scientist: 'Brain' in a dish acts as autopilot, living computer
...ith Jose Principe, a UF distinguished professor of electrical
engineering and director of UF's Computational NeuroEngineering Laboratory, DeMarse has a $500,000 National Science Foundation grant to create a mathematical model that reproduces how the neurons compute. These living neural networks are being used...
Study demonstrates Cenestin reduces sleep disturbances/night sweats in post-menopausal women
...e during the night. Galvanic skin responses -- an electrical
skin conductance from the palms, face or scalp -- measured sweat gland activity. Results showed a 79 percent reduction (3.13 at baseline vs. 0.63 at completion; p=0.0477) in the number of hot flashes in the Cenestin group. The mean reduction...
Early life stress harms mental function and immune system in later years
... faulty in the middle-aged rats. Recordings of the electrical
activity of brain cells appeared normal in young adult rats exposed to early life stress, but became very disturbed as they reached middle age. "Now that concrete deficits in brain cell communication have been found in the early-life stressed, ...
Gene therapy approach reverses diabetic neuropathy in animal model, Pitt study finds
...y and the ability of nerves in the feet to conduct electrical
impulses. In diabetic animals treated with either the NGF or NT-3 vectors, signs of neuropathy had disappeared, whereas in the untreated diabetic animals and the diabetic animals treated with the "empty" vector, neuropathy was still present. Results ...
Stimulating nerve cells with laser precision
..., demonstrating accuracy beyond the limitations of electrical
stimulation. Immediately following the experiment,...e cell by cell. "The problem with the conventional electrical
method is that we have a large zone around our target neuron that also is affected simply because of...
UCSD biologists discover chemical important in guiding visual system development
...iscovered a chemical responsible for the bursts of electrical
activity in the brain that guide the development o...r adenosine controls the timing of these bursts of electrical
activity. Knowing what triggers these waves of activity could make it possible to recreate them for...
Hurricane Ivan helps student study sinkholes
...ground. He is using a geophysical technique called electrical
resistivity. Current is passed through the soil us... resistance," Schwartz said. Different degrees of electrical
resistance allows him to identify water, rock, soil, and voids to a depth of about 15 meters and cre...
'Blind' cells see the light; maybe someday humans will, too
...els, in particular, facilitate the transmission of electrical
signals along the length of the cell. Trauner, on...s, using cell specific promoters. "If you're using electrical
stimulation, there is no way to selectively deliver information to two different channels," he said....
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