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James Webb Telescope components pass tests
Space & Earth / Space Exploration
Sep 17, 2008 |
5 / 5 (1) |
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You might think that shaking and freezing a state-of-the-art, meticulously crafted machine is a bad idea. But when it comes to firing telescopes and their instruments into the frigid cold of space, the more ...
When cancer cells can't let go
Apr 13, 2009 |
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Like a climber scaling a rock face, a migrating cancer cell has to keep a tight grip on the surface but also let go at the right moment to move ahead. Chan et al. reveal that the focal adhesion kinase (FAK) ...
Mars Reconnaissance Orbiter Camera Concern Resolved
Space & Earth / Space Exploration
Aug 27, 2007 |
4.3 / 5 (6) |
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Diagnostic tests and months of stable, successful operation have resolved concerns raised early this year about long-term prospects for the powerful telescopic camera on NASA's Mars Reconnaissance Orbiter.
New research sheds light on freak wave hot spots
Aug 05, 2009 |
4.3 / 5 (8) |
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Stories of ships mysteriously sent to watery graves by sudden, giant waves have long puzzled scientists and sailors. New research by San Francisco State professor Tim Janssen suggests that changes in water depth and currents, ...
Some types of temporary neurological problems associated with increased risk for stroke, dementia
Dec 26, 2007 |
5 / 5 (1) |
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Patients who experience symptoms described as transient neurological attacks, such as temporary amnesia or confusion, may have a higher risk for stroke and dementia, according to a study in the December 26 issue of JAMA.
Research pinpoints conditions favorable for freak waves
Aug 24, 2009 |
3.6 / 5 (5) |
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(PhysOrg.com) -- Stories of ships mysteriously sent to watery graves by sudden, giant waves have long puzzled scientists and sailors. New research by Assistant Professor of Geosciences Tim Janssen suggests ...
All done with mirrors: Microscope tracks nanoparticles in 3-D
Mar 10, 2008 |
4.5 / 5 (12) |
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A clever new microscope design allows nanotechnology researchers at the National Institute of Standards and Technology (NIST) to track the motions of nanoparticles in solution as they dart around in three ...
Study examines relationship between bone density and erosion in arthritis
Jun 01, 2009 |
4 / 5 (1) |
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Rheumatoid arthritis (RA), the most common form of inflammatory arthritis, affects almost three percent of people over age 65. RA patients experience pain, functional limitations and two forms of disabling bone disease: focal ...
Scientists identify a molecule that coordinates the movement of cells
Biology /
Oct 02, 2008 |
4.7 / 5 (11) |
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Even cells commute. To get from their birthplace to their work site, they sequentially attach to and detach from an elaborate track of exceptionally strong proteins known as the extracellular matrix. Now, in research to appear ...
Stretchable silicon camera next step to artificial retina
Aug 06, 2008 |
4.8 / 5 (38) |
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(PhysOrg.com) -- By combining stretchable optoelectronics and biologically inspired design, scientists have created a remarkable imaging device, with a layout based on the human eye.
Overcoming the limits of resolution
Jun 12, 2007 |
4.5 / 5 (13) |
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This year's Julius Springer Prize for Applied Physics will be awarded to the Göttingen-based researcher Stefan Hell for his revolutionary discovery that resolutions far below the diffraction limit can be achieved in a fluorescence ...
What's the clonality status and allelotype of focal nodular hyperplasia?
Oct 19, 2009 |
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Focal nodular hyperplasia (FNH) is a lesion found in an otherwise normal liver, and is considered to be parenchyma overgrowth responsive to increased blood flow secondary to vascular malformations. While its clinical outcomes ...
Stay focused: Researchers sharpen photographs by capturing multiple low-quality images
Technology / Computer Sciences
Sep 30, 2009 |
3.4 / 5 (9) |
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(PhysOrg.com) -- For photographers, it's sometimes difficult to keep both the foreground and background of an image in focus. Focusing somewhere between the two can ensure that neither is blurry; but neither ...
Liquid lens creates tiny flexible laser on a chip
May 11, 2009 |
2.3 / 5 (3) |
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(PhysOrg.com) -- Like tiny Jedi knights, tunable fluidic micro lenses can focus and direct light at will to count cells, evaluate molecules or create on-chip optical tweezers, according to a team of Penn State engineers. ...
Making strides in quantum dot infrared photodetectors
May 17, 2007 |
4.1 / 5 (7) |
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Researchers at Northwestern University have made significant strides in the development of quantum dot infrared photodetectors -- technology that may provide new imaging techniques with applications in medical and biological ...
