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Tag: "thinner" at biology news

Ice core 'dipstick' indicates West Antarctic ice has thinned less than believed

... snowfall patterns near Siple Dome. The layers get thinner and thinner with depth, as more ice and snow piles up. But the thinness of the layers deposited near the end of ...

Tendency to hair loss inherited from the mother

...igher, the hair at the back of the man's head gets thinner and thinner. Every second man suffers from greater or lesser hair loss. There are hardly any successful counter-measures ?despite an enormous range of obscure lotions and tinctures. It has long been suspected that hereditary factors are important in...

When it comes to cell entry, being average has its advantages

...to 30 nanometers in diameter, or about 1,000 times thinner than a human hair ?are optimal for cellular entry. In a research article to be posted this week in the online edition of the Proceedings of the National Academy of Sciences, the researchers note that this information is significant for developing gen...

UK is first to administer new anti-clotting technology

...bility to rapidly reverse the effects of the blood thinner to help safeguard patients against uncontrolled bleeding. More than 12 million patients are prescribed so-called "blood thinners" each year to prevent the formation of clots, which can block blood vessels, causing heart attacks, strokes and other de...

Cyberkinetics, Case to develop system to help restore extremity function

...f a baby aspirin with one hundred electrodes, each thinner than a human hair, that can detect the electrical activity of neurons. The sensor is implanted on the surface of the area of the brain responsible for movement, the motor cortex. A small wire connects the sensor to a pedestal that is placed on the sk...

Cortex matures faster in youth with highest IQ

... 7-year-olds tended to start out with a relatively thinner cortex that thickened rapidly, peaking by age 11 or 12 before thinning. In their peers with average IQ, an initially thicker cortex peaked by age 8, with gradual thinning thereafter. Those in the high range showed an intermediate trajectory (see belo...

Male rivalry increases when females at most fertile, say researchers

... dominant features, such as a strong jaw lines and thinner lips, were shown to male participants who provided ratings of dominance for each image. A dominant person was defined as someone who looked like they could 'get what they wanted'. Participants were asked to provide information on whether or not t...

Wisconsin scientists find a way to make human collagen in the lab

...appeal as a type of nanowire because it is thin -- thinner even than the vaunted carbon nanotubes hailed by nanotechnologists -- and long. Coated with gold or silver, human collagen could form the basis of implantable electric sensors. By attaching certain biological molecules to the wire, it would be possi...

Insects and mammals share common fat-building pathway, study suggests

...o happen almost across the board--our bones become thinner and we gain fat," said senior author, Jonathan Graff of the University of Texas Southwestern Medical Center. "Our findings are consistent with the idea that hedgehog signaling may diminish as we get older. Drugs that stimulate the pathway could possi...

Loosen leash on cancer protein 'watchdog,' researchers say

...he elderly of many mammal species typically show - thinner skin, lower bone density, spinal hunching and the like," Mendrysa said. "We couldn't find any differences between them and normal mice. And their cancer rates were dramatically lower than expected, which turned out to be the more significant finding ...

Brain-computer link lets paralyzed patients convert thoughts into actions

... of a baby aspirin, with 100 tiny electrodes, each thinner than a human hair. The sensor is implanted on the surface of the area of the brain responsible for voluntary movement, the motor cortex. The electrodes penetrate about 1 mm into the surface of the brain where they pick up electrical signals -- known ...

Solvent exposure linked to birth defects in babies of male painters

...borne exposure to organic solvents such as paints, thinner and cleansers. The study, although preliminary in its parent-reported assessment of birth outcomes and small numbers of reported cases, is the first of its kind to link concentrations of solvents in the air to these health outcomes, said Dr. Igor B...

Microcapsules like it hot and salty

...up or shrink and at the same time the wall becomes thinner or thicker. This depends on the composition and the electrical charge of the polymer shell: If it shrinks, it is possible to encapsulate very small molecules. With the powerful supply of energy from raising the temperature, the bonds between ...

MIT creates 3-D scaffold for growing stem cells

... a network of protein nanofibers, each 5,000 times thinner than a human hair and containing pores up to 20,000 times smaller than the eye of a needle. The researchers were able to grow a healthy colony of adult mouse stem cells on the three-dimensional scaffold without the drawbacks of two-dimensional sys...

Cartilage discovery offers arthritis hope

...chniques to uncover the molecular structure of the thinner of the two types of collagen fibrils. Professor Karl Kadler, who led the research in the Faculty of Life Sciences, said: "The ability of cartilage to withstand cycles of compression and relaxation is directly attributable to the collagen fibrils. ...

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