MIT creates 3-D images of living cell
... postdoctoral associate. Cells don't absorb much visible light, so the researchers instead created their images by taking advantage of a property known as refractive index. Every material has a well-defined refractive index, which is a measure of how much the speed of light is reduced as it passes through ...... In microscopic images of real cells, however, the visible sites that might be assumed to correspond to double-strand breaks sites called "radiation induced foci," or RIF occur at a lower rate, only about 15 per gray, depending on the cell type. "What we see through the microscope is not the broken DNA ...Awards celebrating women and biotech brilliance
...h; rather, QCTN is anumbrella organisation. As a visible point of contact for domestic and international organisations seeking to undertake preclinical andclinical research in Australia, QCTN helps identify and connect organisations (sponsors) with appropriateresearch institutions, hospitals, CROs and othe...American Chemical Society's Weekly PressPac -- June 27/July 3, 2007
...d into the body to make diseased tissues even more visible during the imaging session. Their research involved imaging laboratory mice with LOIS before and after an injection of gold nanorods, minute rod-shaped clusters of gold atoms that are being evaluated by other scientists for uses ranging from carrie...Bright future for nano-sized light source
...urce capable of emitting coherent light across the visible spectrum, has been invented by a team of researche...irst electrode-free, continuously tunable coherent visible light source thats compatible with physiological environments, said chemist Peidong Yang, one of the...High cholesterol diets modify gene expression in atherosclerosis
...erol diet when atheromatous plaques are not still visible using an electron microscopic aortic SMCs are extracted and in-vitro cultured. Experts cultured SMC-Cs (obtained from animals without a cholesterol dietary supplement) and SMC-Chs (extracted from animals with cholesterol dietary supplement) under th...University of Pittsburgh scientists find new contributor to aggressive cancers
...ere increased. Similarly, the researchers found no visible metastasis in mice with tumors in which levels of normal integrin 7 had been increased. On the other hand, they did find evidence of metastasis in three of 12 mice with one type of tumor deficient in normal integrin 7 and in four of the 12 mice with ...CSIRO scientists join fight to save 'Tassie devil'
..., devils compete for food. Once the cancer becomes visible and spreads internally through the body, the animal usually dies within a few months from starvation and the breakdown of body functions. The integrated research team at AAHL will use a variety of techniques including microscopy, microarrays and a...Magnetic field uses sound waves to ignite sun's ring of fire
...ere (and the corona above) is much hotter than the visible surface of the star. "It's getting warmer as you m...because the waves are largely trapped by the sun's visible surface -- the photosphere. The research found that some of these waves can escape the photosphere i...Cornell lab confirms deadly fish virus spreading to new species
...wever, exhibit symptoms. Some may be carriers, and visible signs of the disease may vary from species to species. Containing the spread of the virus in New York will require restrictions on the movement of live fish, testing fish and surveillance. For instance, New York state regulations require that bait f...Pediatric cancer stem cell identified: understanding the origin of ERMS
...red zebrafish. Some transgenic zebrafish developed visible tumors by 10 days of age. Through their model, Dr. Zon and colleagues were able to identify both an ERMS tumor-cell-of-origin and a novel genetic signature that underlies ERMS progression in zebrafish and human patients. Cancer stem cells make up ...New clues for treatment of disease that causes accelerated aging
...causes progeria; under the microscope, it leads to visible distortions in the structure of cell nuclei. By studying the mutations that killed the two infants, Miner and his colleagues acquired new perspective on the mutations in progeria. When they compared how much good and bad lamin A was being made in cel...A rainbow of methods promises insights into biological processes and diseases
...nt markers of six different colors, which span the visible spectrum. These labeled DNA probes can be used simultaneously in FISH (fluorescent in situ hybridization) experiments, during which the probes bind to specific chromosomal regions of interest. The colorful chromosomes can then be viewed under a micro...Early exposure to indoor fungus molecules may protect infants against future allergies
...tion about the home, including the presence of any visible mold and water damage. Environmental and food allergy development was monitored through annual skin prick tests. Scientists say early-life exposure to common microbial componentslike bacterial endotoxins and fungal glucanscan stimulate the bodys im...Diffraction and scattering -- the solution to what's in solution
...nt. The results show that the ion structures are visible in solution and reveals their interactions with other ions. "The scientific community has long asked the question, 'What happens to a metal ion in solution?' said Suntharalingam Skantha Skanthakumar, Argonne senior scientific associate. "Direct me...New way to catch cancer's spread, rapid 3-D retinal imaging, more at CLEO/QELS 2007
...70 nanometers, much smaller than the wavelength of visible light. (Paper JMA4, "Magnifying Superlens in the Visible Frequency Range"; also see Smolyaninov et al., Science, 315, 1699-1701, 23 March 2007). OPTOELECTRONIC TWEEZERS PUSH NANOWIRES AROUND In efforts that can improve studies of biological obje...NASA predicts nongreen plants on other planets
...ia that inhabit murky waters where there is little visible light, and so they use infrared radiation during photosynthesis. Scientists have long known that the chlorophyll in most plants on Earth absorbs blue and red light and less green light. Therefore, chlorophyll appears green. Although some green col...Atlas of Science Literacy completes mapping of science-learning pathways
... launched in 1985 the year Halleys Comet was last visible from Earth and its name is a reminder of the importance of science, mathematics, and technology to those who will come of age before the Comets return in 2061. In 1989, Project 2061 released Science for All Americans , describing the knowledge...... Chemical Society in Chicago March 25-29. We use visible light to signal the synthesized bioactive molecule...lex assemblies that are easily photoactivated with visible light." Avijita Jain of Bhopal, India, a Ph.D. candidate in chemistry at Virginia Tech, has design......zene is converted into the short-form. Exposure to visible light transforms the short-form into the long-form. When UV and visible light are used interchangeably, the length of the azobenzene decreases and increases, which drives t...