Tag: "mechanical" at biology news

January media highlights-GSA Bulletin

... reveals that fluids within the fault zone and the mechanical properties of this fault may, in turn, be controlled by other, previously unrecognized, faults cutting the zone from beneath. Interactions of these faults vary in both time and space and may ultimately prove important in understanding the behavior of...

Crayfish robots on Mars

...n being made in flying robots that fly by flapping mechanical wings. Professor Macmillan has focused his research on the Yabby's powerful tail, and it has revealed some interesting implications for future robotic design. "The tail of the Yabby acts like a hinged lever, changing form to act as a sail for steeri...

New research may lead to more effective treatment of asthmatic attacks

... top. Such devices all are characterized by moving mechanical parts, high use of compressed air, complicated operating process, and/or high temperatures. EHDA is characterized by nonmoving parts, no use of compressed air, and easier operation. An aerosol generator that employs electric fields instead of compr...

Nexia and US Army spin the worlds first man-made spider silk performance fibers

... fibers. These fibers were tested for a number of mechanical properties and compared to natural spider silk. T...nditions used were adequate to produce fibers with mechanical properties similar to natural dragline spider silk including toughness and modulus, but had lower st...

Deep sea creatures collected for studies

...n shoots up through vents of various sizes.Using a mechanical arm, the pilot collected the animals and put them in a special plastic box, which kept the water cool, insulating the animals from the very warm temperature at the surface. "When the animals go to lower pressure, they do better with cooler temperatu...

Inventor of artificial hand sees 'bionic' replacement parts becoming more human

...rve pathways to control individual computer-driven mechanical fingers. Craelius published an overview of bionics entitled "The Bionic Man - Restoring Mobility," in the international journal "Science," on Feb. 8. Craelius believes "bionic technologies can be adapted for restoring some degree of almost any lost...

Tufts University researchers engineer first 'custom-made' human knee ligaments from adult stem cells

... cells are then stimulated with multi-dimensional, mechanical forces that mimic ligament movement in the body to develop into living tissue. The bioengineered ligaments can be stored until needed by the patient or donor and then implanted immediately following knee joint trauma. To date, no human clinical tri...

Office of Naval Research awards $8.4M to young investigators

...terized models will lead to the ability to predict mechanical properties of parts made by solid freeform fabrication and thus will lead to improving the quality of manufactured products. Dr. Xiaowei Zhuang, Chemistry and Chemical Biology, Harvard University will apply single molecule, fluorescence resonant ener...

X-ray analysis of shipwreck may help conservators save waterlogged artifacts

...igration of water and oxygen into wood and ensuing mechanical and chemical damage. The researchers also recommended replacing the 8,500 iron bolts holding the boat together - inserted to replace the completely corroded original bolts - with bolts made of an inert material. Eventually the infused iron in the wo...

Optical tweezers show how DNA uncoils

...lls of our bodies. We're trying to understand the mechanical barrier presented by the nucleosome and, further, how the nucleosome structure is modified to clear the way for information transfer." The researchers used optical tweezers to probe the barrier encountered by enzymes like RNA polymerase that prompt...

UCSD gene therapy to prevent restenosis following balloon angioplasty receives US patent

...h muscle cells to chemical agents in the blood and mechanical forces due to flow. In response to these chemical and mechanical stimuli, smooth muscle cells grow, forming a thick lining in the artery wall. This new bump in the w...

Roadmaps & Rampways

...om taking jobs as biologists, computer scientists, mechanical engineers, and aerospace scientists. Roadmaps and Rampways, released last month by the American Association for the Advancement of Science (AAAS), chronicles 25 years of a remarkable era, with dramatic changes in the law, in attitudes, and in "assis...

For the longest distance runner, that tired feeling may not be due to central fatigue

...l voluntary activation, 2) strengthened the twitch mechanical response, and 3) did not change significantly the ...igue. On the other hand, the strengthening twitch mechanical responses and M-wave amplitude characteristics were not altered by the extended run. With few except...

Enzyme once thought harmful to Alzheimers patients now appears key to future treatment

...matic treatment of slice with trypsin, followed by mechanical conversion to a fine powder for dispersion of individual cells. Cells were then plated on poly-L-lysine-coated cover slips and viewed under an inverted microscope. All solutions were kept oxygenated by continuous bubbling with pure oxygen. Results T...

Failure of critical protein connection at heart of cardiomyopathy

...et. However, allowing the heart to rest by using a mechanical device called a ventricular assist device or VAD allows dystrophin to resume its function and restores the heart to more normal pumping, said Dr. Jeffrey Towbin, professor of pediatrics and cardiology at Baylor and the senior author of the report. ...

Intracoronary gene therapy trial shows promise for treatment of angina

...eads towards a treatment, which does not involve a mechanical solution or standard drug therapy, that may be of particular benefit to patients with chronic angina who are not good candidates for additional angioplasty or bypass surgery. We are encouraged by these results and look forward to the findings from th...

Rare fossilized tube feet suggest functional shift through time

...erned in general, Blake said. Because traditional mechanical preparation methods often destroyed the delicate details preserved in fossils in the Hunsrueck Slate, X-ray techniques that peer into the rock have long been employed. But X-rays, especially older ones, can yield controversial images, Glass said. So...

Small research big on Illinois campus

...scale building blocks to control the structure and mechanical properties of macroscopic materials.In another res...fluidic devices that can transport fluids, perform mechanical and chemical processes on fluids, and execute on-chip combinatorial chemical analysis. One of the c...

Sea Grant news: Shipworms, ozone, hurricanes

...sed the material to seawater, weather extremes and mechanical stresses in order to test its durability. Shipworms, also called termites of the sea, are not actually worms, but marine mollusks similar to clams. They have long, worm-like bodies with greatly reduced shells at the end. The floating larvae bore t...

Gender differences in fatigue explained by the use of the body's aerobic pathways

...flow (and thus oxygen) to the muscle is cut off by mechanical compression. If gender differences in fatigue exist and are due to an "oxidative advantage" for women, then the results would demonstrate that women exhibit less fatigue under control conditions, but that women and men would fatigue equally under is...

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(Date:4/17/2014)... that as many as 10 million older Americans suffer ... and isolation. , However, new research a project ... Americans for six years found that Internet use ... by more than 30 percent. , "That,s a very ... professor of telecommunication, information studies and media who led ...
(Date:4/17/2014)... April 17, 2014-- Colic affects about one in five ... numerous pediatric visits during the first several months after ... symptoms was showing promise; however, the April 1, 2014 ... Sung, Valerie) reported on a study, "Probiotics and Infant ... L reuteri for infant colic did not ...
(Date:4/17/2014)... Boston University School of Medicine (BUSM) have discovered ... in an experimental model. The findings, reported in ... Abuse , may lead to more effective treatments ... one of the leading causes of illness and ... economic impact by limiting the productivity of workers ...
(Date:4/17/2014)... led by researchers at UC Davis has shown that ... role in cell division, also boosts the mitochondrial activity ... the complex has been shown to perform both jobs. ... target to control cellular energy production, potentially advancing cancer ... today in the journal Developmental Cell . , ...
(Date:4/17/2014)... Cesar A. Arias, M.D., Ph.D., at The University of ... a new superbug that caused a bloodstream infection in ... 17 issue of The New England Journal of ... a class of highly-resistant bacteria known as methicillin-resistant ... cause of hospital and community-associated infections. The superbug has ...
Breaking Medicine News(10 mins):Health News:Internet use can help ward off depression among elderly 2Health News:New study says probiotic use for infant colic is not effective in reducing symptoms 2Health News:BUSM researchers find anti-seizure drug may reduce alcohol consumption 2Health News:Dual role: Key cell division proteins also power up mitochondria 2Health News:New MRSA superbug emerges in Brazil 2
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