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Tag: "wall" at biology news

McBride shows DNA detective work with paper-eating bacteria that 'glide'

...irections around the cell's perimeter. "The cell wall appears to have a series of moving conveyer belts," he says. He also has learned that some of the motility proteins ("parts") act at the surface of the cell, and he thinks some are involved in forming nearly invisible filaments around the perimeter...

Bacterial walls come tumbling down

...iled images of an elusive drug target on the outer wall of bacteria may provide scientists with enough new... up bona fide drug targets has been slow. The cell wall enzymes in particular have tantalized scientists, Strynadka said. "The cell wall has all the hallmar...

Iowa State scientists demonstrate first use of nanotechnology to enter plant cells

...lica nanoparticle to deliver DNA through the rigid wall of the plant cell was unsuccessful. The technology...s attempted to mimic that process by removing the wall of the plant cell (called making protoplasts), forcing it to behave like an animal cell and swallow ...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...antly affected by the thicknesses of an instrument wall and the exact materials of which the wall is made. Many acousticians had assumed that the main important factor was the profile of a wind ins...

An ancient bathtub ring of mammoth fossils

...ied soon after death-by-torrent, a hard to imagine wall of water a half-mile high spanning the doomed creature’s entire field of vision and approaching as fast as 60 miles an hour. Some fragments may have come from full skeletons churned up and redistributed by later floods, while others may actually have...

Scientists discover 5 new species of sea slugs from the Tropical Eastern Pacific

... de Banderas, Jalisco-Nayarit, Mexico, from a rock wall at a depth of 17m. This species was named for Yolanda Camacho-Garcia for her contributions to the knowledge of Pacific opistohbranchs. Herviella sp., was photographed and collected by Alicia Hermosillo from a floating buoy southeast of Isla Coiba...

Focused ultrasound relieves fibroid symptoms in women

... volume in subserosal fibroids (those on the outer wall of the uterus) and 50 percent of volume in non-subserosal fibroids. "Through this study, we’ve learned that MRgFUS can be optimized with newer protocols to have even better results than previously thought possible," Dr. Tempany said. The findin...

How to lose weight and not go hungry: HU researcher develops drug that mimics feeling of 'fullness'

...owed, and that it was able to cross the intestinal wall and gain access into the blood stream. Once in the blood, it could make its way to the MC4R receptor and “close the circuit” to send out the “full” signal. The result is that a person seriously wishing to overcome obesity could take this compound...

Researchers track how spores break out of dormant state

... (AFM) the alterations of spore coat and germ cell wall that accompany the transformation from a spore to ... AFM imaging also revealed the porous fibrous cell wall structure of newly emerging and mature vegetative cells, consisting of a network of nanometer-wide p...

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