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Tag: "inner" at biology news

Satellites show Amazon parks, indigenous reserves stop forest clearing

...greater than 1.5 percent outside their borders had inner deforestation rates of 0.75 percent or less. Few parks are located in active frontier areas (4 of 15 in the sample) than indigenous lands (33 of 38). But parks' and indigenous lands' ability to inhibit deforestation appear similar. Indigenous lands...

UW scientists unravel critical genetic puzzle for flu virus replication

...next. But while much is known about the genes and inner workings of flu viruses, how the microbe organizes its genetic contents to seed future generations of viruses has remained an enduring mystery of biology. Now, with the help of a long-studied flu virus, an electron microscope and a novel idea of how...

Frog’s ear canal may provide insights for understanding human hearing loss

... in order to transmit ultrasonic vibrations to the inner ear. The presence of an ear canal not only protect...o lessens the distance between the eardrum and the inner ear, thus allowing the bones of the middle ear to be shorter, and as a result, lighter in weight. S...

Animal models show that anabolic steroids flip the adolescent brain's switch for aggression

...ed that the outward aggressiveness correlated with inner changes in the brain. When the drugged hamsters were hostile hosts, a part of their brains called the anterior hypothalamus pumped out more of a neurotransmitter called vasopressin. By three weeks of withdrawal, vasopressin levels subsided in paral...

Engineers discover why toucan beaks are models of lightweight strength

... "The beak is mostly air," said Meyers. "While the inner part of human bone also contains cancellous bone, we don't have the foam interconnections, which produce a much stronger structure with very little additional weight." Like a house covered by a shingled roof, the foam is covered with overlapping ker...

New technique helps researchers determine amino-acid charge

... able to probe the electrostatic properties of the inner lining of the ion-channel's pore, and, from there, they inferred the rotational angle of the pore-lining alpha-helices in the open state. In this case, researchers focused on the muscle nicotinic acetylcholine receptor, a membrane protein that media...

USC researchers track down the stem cells that create feathers

...are distributed in a ring configuration around the inner wall of the vase-shaped feather follicle. This is different from hair stem cells, which are located in a bulge outside the follicle," explains Cheng-Ming Chuong, M.D., Ph.D., professor of pathology at the Keck School and principal investigator on thi...

Phenolic compounds may explain Mediterranean diet benefits

...y healthy. The functioning of the endothelium (the inner lining) of small blood vessels of the fingers (instead of "in the arms") of participants and the concentrations of certain components in blood serum, including nitric oxide, improved after the polyphenol-rich breakfast. "This is the first study that...

Scientists map one of biology's critical light-sensing structures

...a 30-year quest by biologists to drill down to the inner workings of how plants, fungi and bacteria use light to guide their development. It will likely spur a rush by scientists to capitalize on the new knowledge and may one day lead to such things as plants whose growth, flowering and death can be preci...

Anti-cancer drugs may hold promise for premature aging disorder

...arnesylation. Farnesylation tethers lamin A to the inner nuclear membrane. Once there, a second tag within ...hat progerin was becoming permanently stuck to the inner nuclear membrane. There, he suspected, it enmeshed other scaffolding proteins, preventing their prop...

Researcher says flu responders can learn from 1918 epidemic

...spitals which traditionally serve the needs of the inner city begin to run out of beds? Do we think that p... factors are found in combination in the nation's inner cities, he said. "With the 1918 flu, though, the exact opposite happened," he said. "Those who tend...

Purdue's gold nanorods brighten future for medical imaging

...or a wide range of biological imaging to study the inner workings of cells and molecules. Findings are detailed in a research paper that appeared online last week in Proceedings of the National Academy of Sciences. The paper was written by researchers in Purdue's Weldon School of Biomedical Engineering an...

Color perception is not in the eye of the beholder: It's in the brain

...ed by Williams that maps out the topography of the inner eye in exquisite detail. The technology, known as adaptive optics, was originally used by astronomers in telescopes to compensate for the blurring of starlight caused by the atmosphere. Williams turned the technique from the heavens back toward the ...

How fish hear and make sounds at same time

...mammals. While humans hear with the cochlea of the inner ear, the midshipman uses the sacculus, a part of the ear that in humans detects acceleration or linear movement. Because the study indicates a relationship between the ear and the auditory and vocalization systems of the brain, it could help scienti...

Nanoscale method for investigating living systems

... of manipulation, imaging and understanding of the inner workings of cells. The specks are known as quantum dots or inorganic semiconductor nanocrystals. Measuring in millionths of a millimeter, these dots are so small that the addition or removal of electrons changes the properties of the dot. The team, ...

Several minute intermediate stage in virus-cell fusion discovered; opportunity for drug development

...pace station," said Young. "If you try to open the inner door before the pressures have equalized, you can tease it open a little bit but it keeps closing on you until there's enough pressure in the airlock to allow it to open all the way." Melikyan explained, "The pore is an unstable structure at that mo...

'Sinkers' provide missing piece in deep-sea puzzle

...nd can be up to one meter (three feet) across. The inner filter is slightly more dense, and traps small particles that the animals eats. The larvacean constantly pumps water through both filters, which typically become clogged after about 24 hours of use. At this point the larvacean abandons its house and ...

Beauty queens urge girls not to sacrifice their bones

...le beauty is partly physical it is also made up of inner beauty that includes respecting one's health and behavior. Medical specialists from IOF noted that with Asia's aging population, it is expected that the burden of osteoporosis will increase dramatically if no preventive action is taken. Dr Khunying...

New Lab Research May Help Those Deafened By Immune System Attack

...of people each year, the immune system attacks the inner ear, home to the tiny, delicate structures that al...ents had antibodies against a protein found in the inner ear, called IESCA for inner-ear supporting cell antigen. This is a sign their immune systems recogni...

Beyond genes: Lipid helps cell wall protein fold into proper shape

...layers sandwiching an impermeable water-unfriendly inner layer that defines the outer surface of cells. Transport of nutrients and waste material across the cell membrane is then governed by the specific proteins associated with it. In a strain of E. coli lacking PE, the GabP protein misfolded, with two a...

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