Tag: "electricity" at biology news

The longest carbon nanotubes you've ever seen

...al to be longer, stronger and better conductors of electricity than copper and many other materials--could ultimately find use in smart fabrics, sensors and a host of other applications. To grow the aligned bundles of tiny tubes, the researchers combined advantages of chemical vapor deposition (CVD), a techni...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...hesis. (3pID2). ALIEN SOUNDSCAPES Crackling electricity in the atmosphere" Howling red dust storms" Sounds that become muffled from just a few feet away" At session 3aPAb, researchers will present the latest theoretical and experimental knowledge on acoustical conditions on several other terrestrial ...

Deconstructing brain wiring, one neuron at a time

..., you could begin to understand how the chip moves electricity and how that operates the computer." Neuroscientists also want to deconstruct the flow of electrical signals in the extraordinarily complex architecture of the brain and then correlate these neural circuits with such brain functions as perception ...

Cornell researcher helping develop quick, cheap HIV/AIDS test

...th HIV/AIDS worldwide, many of them in areas where electricity is unreliable or nonexistent, water quality is poor and there are few, if any, highly skilled health-care technicians. "This test, however, is being developed to endure harsh temperature conditions and be truly simple -- no batteries will be needed, ...

Brain works more chaotically than previously thought

...t neuronal information in the brain, somewhat like electricity in a computer, only spreads directionally in the brain, following specific ordered circuits. Too much glutamate is the death of cells There is, however, also an aspect to the research team's discovery that is of considerable medical interest....

The power of one: A simpler, cheaper method for cell fusion

... only exit, which is a miniscule gap that channels electricity from one pole to the other. Passing through this narrow section, cells are subjected to a strong electrical field that causes them to become destabilized and fuse together. In one of electrofusion's applications, scientists can fuse antibody-produ...

Carnegie Mellon scientists use 'green' approach to transform plastics manufacturing

...lays and semi-conductors that regulate the flow of electricity in sensors, some only a fraction of the width of a hair. ATRP differs significantly from conventional polymer manufacturing methods. This "living," synthetic process can be shut down or restarted at will, depending on how the temperature and other ...

A new target for painkillers

... burning, "pins and needles," sharp shooting pain, electricity or electrical shock, or tingling. People with neuropathic pain often are hypersensitive to previously innocuous stimuli ?for example, feeling pain from a foot rubbing against the inside of a shoe ?and feel an exaggerated response to things that are p...

Electric jolt triggers release of biomolecules, nanoparticles

...archers have devised a way to use a brief burst of electricity to release biomolecules and nanoparticles from a t.... The researchers then sent a brief, mild pulse of electricity through wires attached to each electrode. The current caused the bond between the sulfur atoms and t...

Ferns provide model for tiny motors powered by evaporation

...ill move. The key is to show that you can generate electricity from this." As often happens, the research start...device will be able to generate the same amount of electricity as other scavenging devices, say, a solar cell in a calculator. The ideal application, Borno said, ...

Biofuel cells without the bio cells

...sewage and other biological waste while generating electricity directly from the same process. An example, Squier...l, the latter being the electrode that carries the electricity to the device. In purified protein fuel cells, the seal made by the protein coating on the electrode...

Radiologists attempt to solve mystery of Tut's demise

...we had several strange occurrences," he said. "The electricity suddenly went out, the CT scanner could not be started and a team member became ill. If we weren't scientists, we might have become believers in the Curse of the Pharaohs." The CT examination of King Tut is part of a five-year initiative called th...

Electric fish in Africa could be example of evolution in action

...th oscilloscopes search for shapes and patterns of electricity created by fish in the water. They know from their previous research that the various groups of local electric fish have different DNA, different communication patterns and won't mate with each other. However, they now have found a case where two t...

Nanotubes used for first time to send signals to nerve cells

...g as steel and one-sixth as dense, able to conduct electricity better than copper or to substitute for silicon in semiconductor chips, carbon nanotubes have been proposed as the basis for everything from elevator cables that could lift payloads into Earth orbit to computers smaller than human cells. Thin films...

UCSD researchers develop 'smart petri dish'

... analogous to the way that semiconductors transmit electricity through computer chips. By attaching rat liver cells to the polystyrene within the crystals and measuring the scattering of light with a sensitive spectrometer, they were able to detect small changes in the shapes of the cells as they reacted to toxi...

Corn waste potentially more than ethanol

...d not only to manufacture ethanol, but to generate electricity directly. "People are looking at using cellulose ...stover, but once you have the sugars, you can make electricity directly." Logan's process uses a microbial fuel cell to convert organic material into electricity...

First surveys of Tanzanian mountains reveal 160+ animal species, including new & endemic

...-generating about 50 percent of the nation's total electricity through its hydropower." For a total of 112 days over two years, an international team of scientists from the Tanzania Forest Conservation Group, Oxford Brookes University, and the Zoological Museum of Copenhagen conducted surveys using a variety of...

UF scientists trace origin of shark's electric sense

...they can only detect electric fish. They can sense electricity generated by a muscle twitch, even if it's the wea... But it doesn't work on land - air doesn't conduct electricity as well. When it happens, it's called a lightning bolt and you don't need special receptors to sense...

Earth Rx: A microbial biotechnology prescription for global environmental health

...d perchlorate from the water supply and generating electricity from wastewater. "Scientifically, it might be easiest to let the microbes convert the energy is organic wastes directly to electricity. However, they also can generate useful fuels, such as methane and hydrogen, and we are pursuing research on al...

Mechanism for memory revealed in neurons of electric fish

...eyes and closing them," says Zakon. "Each pulse of electricity is a snapshot of the environment. These guys are swimming around and discharging at a very regular frequency. They're digitizing their environment." But a problem occurs when the fish are close to each other. They can jam each other's electrical sig...

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