Tag: "mechanical" at biology news

Donated organs 'heirlooms not spare parts'

...ients often speak of their transplanted organ as a mechanical object andrefer to it as "theirs". Much of their gratitude is directed towards the healthcare professionals who "saved their life". However the research also shows thatrecipients are aware of the origin of the "gift", that it came from anotherhuman b...

Donation valued at $12 million: Hoechst Research & Technology donates cut resistant fiber patents to Clemson University

...ave proven effective at protecting workers against mechanical cuts and abrasionhazards. Standard industry tests indicate this technology, originally developedby Hoechst, more than doubles the cut resistance of the base polymer. Hoechst's North American industrial businesses have had a long-standingrela...

Stanford scientists use noise to sort proteins

...riginal Feynman version of a Brownian ratchet is a mechanical device thatconsists of two boxes joined by an axle. Four small vanes are attached to oneend of the axle. Attached to the axle's other end is a ratchet, a saw-toothwheel and a small pawl attached to a spring that permits the wheel to turn inonly one d...

Smog impacts: Hurtling through airways, tiny particles may do more damage than previously assumed

...rvised by Ajay K. Prasad, an associateprofessor of mechanical engineering. This research was sponsored by the Electric Power Research Institute....

New MIT probe gathers data for better polymers

...sor Gleason said, which could in turnimprove their mechanical properties. Historically, polymeric materials withspecific properties have been created by trial and error with little knowledgeof exactly why a given formulation works. The new probe combines a stretching device with the electronics for nuclearmagne...

USGS studies wildfire ecology in the western United States

...rent techniques of understory fuel reduction, from mechanical thinning of trees to prescribed burning. Van ...toration measures including prescribed burning and mechanical thinning of trees. Unlike some other forest systems, Stephenson says, sequoia groves respond extreme...

Threats to health reduced with Bt corn hybrids

...rm,and Southwestern corn borer. All of which cause mechanical damage to the cornwhich influences the development of several crop damaging diseases including earrots, kernel rots and stalk rots. Kernel rot caused by the fungus Aspergillus is also associated with insectdamage to ears. Several species of this f...

How biological molecules move electrons: Simplicity trumps complexity

...plished by means of a nearly instantaneous quantum mechanical phenomenon called tunneling: The electrons tunnel through the protein from one redox center to the next. About a third of all known proteins are electron-transfer proteins. The new findings have some important implications. They suggest, first, that...

Protein component apparently plays key role in muscle elasticity

...simulation allowed the researchers to observe fine mechanical details. When several connected domains are stretched with an atomic force microscope, a graph of the unfolding process displays a hump that disappears as the domains are unfolded. The hump corresponds to the transition of fully folded domains to a...

Carilion, Virginia Tech, U.Va. create biomedical institute -- Virginia Tech forms optical sciences and engineering research center

...er engineering, materials science and engineering, mechanical engineering, physics, andveterinary medicine will be OSER center participants. OSER faculty members will also teachand work with graduate and undergraduate students. The University of Virginia Medical Automation Research Center develops technology t...

China now leads world in sulfur emissions, study shows

...d analyzed by Rudolf B. Husar, Ph.D., professor of mechanical engineering and director of the Center for Air Pollution Impact, Trends and Analysis (CAPITA), the world's largest private library of air pollution statistics, at Washington University in St. Louis. He published the analysis in the 1999 fall issue o...

DFG to set up 21 new collaborative research centres in 2000

...available for form-memory alloys -- extending from mechanical engineering, to medical engineering and finally to aero-space, the demand profiles relating to this material are manifold. Speaker: Prof. Dr. Gunther Eggeler, Institut fur Werkstoffe, tel.: 0234/322 8022 The strengthening of small and medium-sized...

Learning how cell's tiny motor powers its mobility

...ng throws the neck linker forward and provides the mechanical force that putsthe kinesin molecule in motion along the microtubule tracks. The discovery that motion is generated bythe neck linker, which is composed of only 15 amino acids, also helped the scientists understand howtwo linked kinesin molecules coor...

Scientists figure out how cells' tiniest motors work

...es a very differentlydesigned and 10-times smaller mechanical element to produce the thrust that propels motion.... type moves theopposite way. "It uses a different mechanical process, and we would like to visualize the internal motions ofthis protein too to understand how it...

The future of the world with materials science and engineering

...t frequently demand advances in both materials and mechanical engineering," says Dunn. "In order to meet these aims chemists, metallurgists, electrical, structural and materials engineers are combining their skills in intensive research collaborations."...

Gerhard Hess prizes awarded

...s in contact with the cell membrane as well as the mechanical response of cells to external mechanical disturbances. Dr. Karsten Weihe (32), University of Constance, Mathematics and Computer Science Depa...

Rare but deadly heart disease is curable, study shows

..., thereby increasing blood flow, or an implantable mechanical pump to temporarily assist the heart with circulation, Hare says. Pumps can usually be removed safely after seven to 10 days. "Physicians should use any means necessary to maintain these patients' heart function, as virtually all will recover within...

UCSD study of uncoordinated fruit flies provides molecular clues to hearing problems in humans

... Scientists have known for the past 15 years that mechanical energy in the form of sound and touch can be trans...n produce electrical responses in the brain. "The mechanical senses are conserved through evolution, from the tiniest organisms to humans, because they all perfo...

Manatees saved by ONR-supported technology

...electric material tranforms electrical energy into mechanical energy and vice versa. Installing the new Manatee Protection System at Port Canaveral consisted of retrofitting both gates of the Canaveral lock structure with an acoustic system composed of emitter and receiver units. The units are made from state-o...

Studies of clumsy flies yield molecule important in balance, hearing

...touch and hearing. The discovery helps explain how mechanical sound waves are converted into nerve impulses -- a...nel in the sensory cell membrane that opens when a mechanical stimulus impinges on it -- creating a near-instantaneous neural signal. However, these channels are ...

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(Date:4/14/2014)... orphaned by HIV/AIDS in South Africa may provide insight ... behavior issues in other areas of the world, which ... that could lead to successful interventions. , A ... United Nations mentions that due to the HIV/AIDS pandemic, ... African, children are at an increased risk for mental ...
(Date:4/14/2014)... A new study shows that moderate to severe ... risk of stroke, cancer and death. , Results of ... to severe obstructive sleep apnea were four times more ... times more likely to have a stroke (HR = ... (HR = 3.4), and 2.5 times more likely to ...
(Date:4/14/2014)... Dallas study involving serious youth offenders, the answer to one ... seven years: "How long do you think you,ll live?", According ... offending over time., Author Dr. Alex Piquero said the study ... of them offend at very high rates and commit more ... much later in life offend much less., "In a lot ...
(Date:4/14/2014)... with symptoms increasing dramatically during some of the most important ... has found. , Depressive symptoms increased on average by 68 ... young men, who were around 25 years old when they ... their children. The results of the study were published April ... is the first to identify when young fathers are at ...
(Date:4/14/2014)... Lower weight babies and babies who aren,t breastfed ... risk of developing chronic inflammation and related health ... study. , "There were good reasons to hypothesize ... inflammation in adulthood," says Thomas McDade (Northwestern University), ... in the Child & Brain Development program. "It ...
Breaking Medicine News(10 mins):Health News:Researchers identify children with emotional behavior difficulties 2Health News:Researchers identify children with emotional behavior difficulties 3Health News:Study links severe sleep apnea to increased risk of stroke, cancer and death 2Health News:UT Dallas study: Youth who fail to envision future commit more crimes 2Health News:Young dads at high risk of depression, too 2Health News:Low birth weight, less breastfeeding create later health risks 2
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