Tag: "valves" at biology news
Hope for nano-scale delivery of medicine using a light beam to move liquid through tiny tubes
...gging by any biological molecule that can occur in valves
small enough to fit a channel the size of bacteria...neering professor. "The everyday use of mechanical valves
and pumps becomes difficult in nanotechnology because making them tinier is a manufacturing challeng...
Early miscues cause late problems in model of Marfan syndrome
...ormance in many tissues, including the bone, heart valves
and aorta." Never before linked to Marfan syndrome, TGF-beta is made inside cells, coupled with other proteins that inactivate it, then shipped out of the cell to dock in nearby connective tissue. When TGF-beta's signal is needed, it is released in a...
Carnegie Mellon professor skeptical about use of hydrogen-fueled cars
...mps. Drivers would use hoses with specially-fitted valves
to fill their tanks. Some of the cars might use extremely cold liquid hydrogen; others might use hydrogen in a compressed gaseous form. "The FreedomCar Initiative is attractive because it's seemingly a magical high-tech solution," Keith said. "But s...
Staph aureus bacteremia in ESRD patients associated with substantial illness and higher costs
...yelitis), or the inner lining of the heart and its valves
(endocarditis), or cause abscesses in internal organs such as the lungs, liver and kidneys. People most at risk for these infections are surgical patients, trauma or burn victims, newborns whose immune systems are not yet developed, and patients wit...
U. of Colorado professor pioneering tissue engineering from knees to hearts to brains
...neer human heart valves. Currently, faulty heart valves
are replaced with mechanical valves
that require the patients to take anticoagulants on a regular basis. While some heart valves
Duke open-air experiment results could deflate hopes that forests can alleviate global warming
..., scientists at Duke's FACE site mounted pipes and valves
on three separate rings of towers to release extra gas onto the forested test plots the towers surround. The computerized system maintains CO2 concentrations of 1 times today's levels, regardless of wind or weather conditions. Three additional tower ...
Federal grant supports advances in infant heart disease at Children's Hospital of Philadelphia
...sms influencing the usability of replacement heart valves
for children with heart disease. Project 2, led by...with defects of the outflow tract, the vessels and valves
by which blood is pumped out of the heart. Project 3, headed by pediatric cardiologist Elizabeth ...
'Cardiofunk' mutation: Probable source of congenital heart defects
... the embryo, rather than by genetic defects in the valves
themselves. This could lead to a new way to look at congenital heart defects," he said. If proven true in humans, the finding could allow physicians to treat or prevent heart defects before birth by focusing on fetal heart formation instead of having...
Plumbing trees' plumbing reveals their engineering skill
...lumbing of a house by carefully tracing its pipes, valves
and faucets. In contrast, the usual approach -- drilling core samples and separating tree root samples for study -- is like taking a wrecking ball to the house and sifting through the debris to understand the plumbing system. The researchers, led by ...