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Tag: "insulating" at biology news

Researchers discover gene crucial for nerve cell insulation

...th that surrounds a nerve cell is analogous to the insulating material that coats an electrical cord or wire, keeping nerve impulses from dissipating, allowing them to travel farther and faster along the length of the nerve cell. The researchers discovered how a defect in just one copy of the gene, known as ...

Brain works more chaotically than previously thought

... this is not the case." The messenger attracts insulating cells Together with his colleagues Dr. Maria K...apid retransmission of signals. "It is likely that insulating cells are guided by the glutamate to locate axons and envelope them in a layer of myelin," says Dirk...

Ancient birds flew on all-fours

...ructures on the hind limbs, they were dismissed as insulating body feathers that didn't play a role in the animal's flight. It wasn't until several four-winged dinosaurs in China were described in 2002 that researchers began to re-examine Archaeopteryx's legs. "The idea of a multi-winged Archaeopteryx has been...

How plants avoid feeling the burn

...ure. Other innovations included developing a new insulating coat of polyethylene for the probe tip of a Scanning Tunneling Microscope (STM), which is used to measure the electron flow across single molecules. Also, the chemical ends of the carotenoids had to be modified so they could chemically stick to the S...

Imaging study links key genetic risk for Alzheimer's disease to myelin breakdown

...ound axons, speeding messages through the brain by insulating these neural "wire" connections. As the brain continues to develop in adulthood and as myelin is produced in greater and greater quantities, cholesterol levels in the brain increase and eventually promote the production of a toxic protein that attac...

Scientist measures role of science's coolest player: The snow

...ld north-are likely to expand in area. Without the insulating effect of snow, in other words, soils in colder regions of the world are in fact likely to get much colder. The surprising result has implications for the health of permafrost-associated ecosystems, and may influence decisions in the field of constru...

Successful Test Of Single Molecule Switch Opens The Door To Biomolecular Electronics

...ay and his team solved this problem by applying an insulating coating to the entire probe, except its very tip, ... the process work because, without it, the initial insulating property of the molecule prevents the first electron from ever jumping on to the molecule, a kind of...

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