New NIST method improves accuracy of spectrometers
...CD-array spectrograph, which measures light in the visible region instantly. They characterized the response to monochromatic emissions from tunable lasers that covered the instrument's full spectral range. Calculations were made using the measured data to produce a matrix that quantified the magnitude of th...Scientists devise way to measure RNA synthesis on the fly in a live cell
...hen scientists realized that the celestial objects visible to them did not contain enough gravity to explain the motion of galaxies. "They proposed the hypothesis that the motion of galaxies is affected by the presence of invisible matter called 'dark matter,'" Cluzel said. In recent years, astronomers have ...Tagging pathogens with synthetic DNA 'barcodes'
...e is spread on a sheet of absorbent paper and made visible to the naked eye. Or the color can be observed directly through a fluorescent light microscope, which is useful in situations where the geographic distribution of the target molecules is important, Luo said. For convenience, a computer can convert th...NJIT student named Fellow by NJ Commission on Science and Technology
...and breaths will be displayed on computer monitors visible to the astronauts or sent back to Earth for review by physicians. Gundel will design the integrated circuits for the sensors. Gundel will also research whether the device can be used for another, broader application: to help cardiac and lung pa...From memory formation during sleep to novel components for physics
...lications. For example, light occurs as infra red, visible and ultraviolet light in a variety of spectral manifestations and can only be understood as a unified phenomenon by looking at these various forms as a whole. The Collaborative Research Centre "Spectral structures and topological methods in mathemati...New law for resolution allows unprecedented sharpness in fluorescence microscopy
... d is equal to 200nm using conventional lenses and visible light. For a long time, Abbe's law was regarded as being insurmountable. For higher resolution, the textbook knowledge was that a complicated and costly electron or scanning tunneling microscope would be required. However, over the past few years, re...Employee with sleeping disorder has to work extra hard
...nces, the lower performance level was probably not visible because the sleep sufferers invest extra energy in carrying out a task. Research psychologist Michel Varkevisser investigated how sleeping problems affected the performances of employees under both laboratory and field conditions. In contrast to ear...Revolutionary nanotechnology illuminates brain cells at work
...form upon binding with the chemical, which is then visible via a process known as fluorescence resonance energy transfer, or FRET. In a new study, the nanosensors were introduced into nerve cells to measure the release of the neurotransmitter glutamate--the major brain chemical that increases nerve-cell acti...Scientists journey to southern Africa to unravel the secret world of elephant communication
... a large animal produces a unique signature that's visible on a spectrogram, making it easy to tell if an elephant, rhino or giraffe has walked by. "We think we can tell the difference between elephants and other species based on the spectral content of their footstep as they pass by a geophone array," says ...BC scientists coax gold particles to emit light strong enough to view single nanoparticles
...Chen, coaxed the particles into strong emission of visible light using a technique called multiphoton absorption induced luminescence (MAIL). The most efficient gold nanoparticles could be observed at laser intensities lower than those commonly used for multiphoton imaging, in which specific tissues or cell...Secret of smallpox's success may lead to bioterror cure
...ral gene that allows pox viruses to hide. The more visible the vaccinia virus is to the immune system, the stronger the immune response should be and the better the body should be able to fight off a smallpox infection. Over the past 15 years, Jacobs has developed a variety of mutant vaccinia viruses that la...Bee mites suppress bee immunity, open door for viruses and bacteria
...ut the size of a pin head, dark brown in color and visible on close inspection. This bee mite probably arose in the Eastern or Chinese Honey Bee population and hopped over to the United States in 1987. They quickly infested western or European honey bees. One sign of infection is the presence of bees wi...PNAS highlights for the week of May 16 - 20
...hed too quickly to be seen consciously, as well as visible words shown long enough to be detected. Half of the words were threatening in nature (e.g., "danger", "kill"), and the other half were emotionally neutral (e.g., "cousin", "see"). During word presentation, the researchers recorded electrical activity...Audiovisual integration of speech falters under competing demands for attention
...severely reduced--even when the talker was clearly visible and audible, and regardless of whether the secondary task was visual or auditory. This finding challenges previous claims that multisensory integration (and, therefore, its potential benefits in perception) occurs without attention. In practical term......Dr. Yoav Citri. Ferritin's advantage is that it is visible in MRI without the need for an additional contrast material. This technique has far-reaching implications for monitoring the progress of gene therapy, such as that used to reactivate the body's production of insulin in the treatment of diabetes, beca...Researcher gets NSF grant to create mutant maize lines
...g gene may alter processes in ways that are easily visible to the naked eye or through biochemical or physiological analysis. Such experimentation will give researchers a better understanding of the relationships between specific genes and complex plant systems. The database will be invaluable to academic r...New insights into how Huntington's disease attacks the brain
...emonstrated problems with motor control and showed visible degeneration of the target brain cells. In contrast, the second set of mice showed little signs of the disease. "This is the first direct genetic evidence to demonstrate that abnormal interactions between cells can significantly contribute to brain ...Research takes big picture of wheat streak mosaic
...mages along seven broad spectral bandsranging from visible to near infrared and one band of thermal infrared. Because the satellite passes over the same area every 16 days, Jonescan monitor changes throughout the growing season. He also goes to the fields to collect ground truth data, allowing himto phy...New tool reveals secrets of migrating cells
...rotein, glow. But high-frequency, short-wavelength visible light, like green, doesn't penetrate tissue as deeply as longer, redder wavelengths. The idea behind two-photon imaging is that if you hit a dye molecule in a short period of time with two photons of light, each photon half the energy needed to excit......green protein found in deep-sea invertebrates--was visible in all sections of the tumors exposed to pulsed-HIFU. Tumors not targeted with pulsed-HIFU showed negligible signs of the gene. An analysis showed reporter gene levels to be nine times higher in tumors treated with pulsed-HIFU compared with tumors le...