Tag: "shapes" at medical news
Smart plastics change shape with light
...n to elongated films, a variety of other temporary shapes
can be produced. For example, a spiral can be crea...write. The team has also shown that the temporary shapes
are "very stable for long times even when heated to 50 degrees C." "In our Nature paper, the basic...
Shape-altering genes linked to ovarian cancer
...recting them to change their shape." These strange shapes
make each form of ovarian cancer different from on...even looks like intestinal cells. These mysterious shapes
have caused some researchers to speculate that ovarian cancers might originate from some other tissu...
New portable device developed by Georgia Tech and Emory checks for concussions on the sidelines
...or example, the first shows the wearer a series of shapes
with different colors and textures and gives voice instructions. The wearer uses a simple controller (similar to a video game controller) to respond to the commands. The device then measures the wearer's response times and answer selections. If the r...
UCI eye doctors invent laser-assisted cornea-transplant surgery
...ghly skilled surgeon, the laser can create complex shapes
that are impossible to achieve with conventional surgery." The study compared the results of conventional transplant surgical techniques to the results of the laser surgery. Utilizing 14 donated human corneas that were not medically suitable for tran...
Latest generation lineal accelerator for radiotherapy
... emission of radiations. At present, the equipment shapes
or moulds the radiation field through a system of multilaminas that are indispensable in order to carry out this shaping of the radiation beam. This beam modulation enables the adaptation of the radiation dose to the anatomy of the desired volumes of...
Researchers demonstrate use of gold nanoparticles for cancer detection
...cancerous cells. Since nanoparticles of different shapes
and sizes absorb and scatter light differently, multiple color probes can be made which may detect many molecules at the same time. What makes this technique so promising, the researchers explained, is that it doesn't require expensive high-powered m...
A giant step toward tiny functional nanowires
...ools -- our chisels of a sort -- can't control the shapes
and spacing of these small structures," said Chad A. Mirkin, director of Northwestern's Institute for Nanotechnology, who led the research team. "Our method allows us to selectively introduce gaps into the wires. These gaps can be filled with molecul...
Mental health following stroke, spinal cord injury; sensory evaluation tools
...nd knee-ankle-foot roll-over shapes. The roll-over shapes
of the ankle-foot and knee-ankle-foot systems did not change appreciably with added weight at any of the three walking speeds. The response of the lower limbs of persons without physical impairment to added weight should be considered an important de...
New online atlas provides collective maps of human brain folds
... previously shown some dramatic differences in the shapes
of their brains," Van Essen says. One example of these differences is found in the parietal lobe, a region located near the top of the head that, among other functions, helps the brain track where objects are in space. In Williams syndrome patients,...
What the news and the movies leave out: Behind the scenes of disaster aid
...litical mindspace. It is driven by the media which shapes
the disaster in the mind of the public, and the agencies. It is driven by the local political and military agendas, and of course by the global political and economic agendas. And, finally, it is driven by the needs and aspirations of the disaster su...
National funding goes to Johns Hopkins to advance research on stem cell therapies for heart attack
...anced medical research in the United States and it shapes
the next chapter on Hopkins' historic role in cardiology," says Eduardo Marbn, M.D., Ph.D., professor and chief of cardiology at The Johns Hopkins University School of Medicine and its Heart Institute. "The era of cardiac surgery was pioneered at H...
Study finds new type of silicone implant offers more natural looking breasts, low complication rate
... implants is the availability of a wide variety of shapes
and sizes to more closely match breast shapes
and chest dimensions. For example, plastic surgeons can use a patient's breast measurements to custo...
Tiny self-assembling cubes could carry medicine, cell therapy
...the edges between adjoining squares. When the flat shapes
are heated briefly in a lab solution, the metallic hinges melt. High surface tension in the liquified solder pulls each pair of adjoining squares together like a swinging door. When the process is completed, they form a perforated cube. When the solu...
Where your brain wires itself to like (name your favorite brand)
...ecoming unconsciously conditioned to associate the shapes
with the juices--the researchers used fMRI to search for tell-tale activity in brain regions known to be associated with reward and reward-related learning. The widely used fMRI technique uses harmless magnetic fields and radio waves to detect enhanc...
When good DNA goes bad
...ntists have known for many years that DNA can take shapes
other than the typical twisted ladder form, but they weren't sure how often these alternate shapes
occur inside cells. Researchers who study these shapes
had previously shown that Z-DNA can form only...
Binge drinkers have highest risk of alcohol-related injury
..."It's not only the amount of alcohol consumed that shapes
the risk for injury, but also the usual consumption pattern," said lead researcher Gerhard Gmel. "At highest risk are those who usually consume moderately but sometimes binge drink. This is true for both sexes." Gmel, of the Alcohol Treatment Center...
Gold nanorods may make safer cancer treatment
...y to detect and kill cancer cells. By changing the shapes
of gold nanospheres into cylindrical gold nanorods, they can detect malignant tumors hidden deeper under the skin, like breast cancer, and selectively destroy them with lasers only half as powerful as before without harming the healthy cells. The m...
No-hands origami: New DNA self-assembly makes more complex structures, more easily
...f DNA to fold themselves into a variety of complex shapes
an accomplishment considered the most intricate y...6 issue of the journal Nature . The complexity of shapes
that Rothemund has achieved from programming strands of DNA, including snowflakes, smiley faces and ...
CIHR launches casebooks about Canadians turning research into action
... is an important step to ensure that new knowledge shapes
health policy, program delivery and, ultimately, improves the health of Canadians. "I hope this collection of stories inspires other researchers, policy makers and community members to find new innovative ways to move research into action," said Dr. ...
Explaining how the brain recognizes faces
... recognizes faces based on selective processing of shapes
of facial features. In their studies, the researchers first constructed a computational model that represented how their hypothesized neuronal circuitry would work. This model aimed at predicting how the circuitry could give rise to the perception o...