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Tag: "instrument" at biology news

Another Look Finds Promising Proteomics Test is Not Biologically Plausible

...ter data were analyzed. A mass spectrometer is an instrument that can quantitatively measure the concentration of hundreds of proteins from a single sample. In short, it does this by using an electric current to propel ionized proteins toward a detector. The number of ions hitting the detector at each mass-to-...

New species from old data

...ter data were analyzed. A mass spectrometer is an instrument that can quantitatively measure the concentration of hundreds of proteins from a single sample. In short, it does this by using an electric current to propel ionized proteins toward a detector. The number of ions hitting the detector at each mass-to-...

Cracking the olfactory code in bees

...ter data were analyzed. A mass spectrometer is an instrument that can quantitatively measure the concentration of hundreds of proteins from a single sample. In short, it does this by using an electric current to propel ionized proteins toward a detector. The number of ions hitting the detector at each mass-to-...

Signaling protein builds bigger, better bones in mice

...ter data were analyzed. A mass spectrometer is an instrument that can quantitatively measure the concentration of hundreds of proteins from a single sample. In short, it does this by using an electric current to propel ionized proteins toward a detector. The number of ions hitting the detector at each mass-to-...

A much-needed shot in the arm for HIV vaccine development

...oubt that this roadmap will beregarded as a useful instrument to bring greater cohesion andcoordination to the field."Ho urges the Enterprise not to ignore the important contributions madeby scientists outside of the collaboration. "It is my contention thatgreat new ideas are as likely to come from curiosity-dr...

Color-blind method opens new doors in DNA sequencing

..." Metzker said, "We have built a highly sensitive instrument for the measuring of fluorescence, because PME gives brighter signals and collects more of that signal by eliminating the need for a prism to separate the light into colors." Metzker is also seeking to develop a chip-based imager than could be used ...

Nanogen Issued Patent for Electronic Microarray With Memory

...vascular and genetic diseases. The next generation instrument system, the NanoChip(R) 400, is expected to be available in 2005. Nanogen's subsidiary SynX offers a line of point-of-care diagnostic tests and is building expertise in cardiac related health conditions. Nanogen's ten years of pioneering research inv...

Why do insects stop 'breathing'? To avoid damage from too much oxygen, say researchers

...o cells for gas exchange. Using a respirometer (an instrument for measuring respiration that consists of a chamber with a flow-through air system), they monitored the moth's breathing pattern. The chamber, which housed the moth being studied, was filled first with air that had been freed of carbon dioxide. Next...

Glow-in-the-dark zebrafish at UH hold keys to biological clocks

...y the human eye, but it is easily measured with an instrument called a luminometer. "This has given us the tool we need to find other parts of systems that influence biological clocks," Cahill said. "We are optimistic that this will shed light upon such things as reproduction in other light-dependent animals."...

Penn Researchers Use Robotic Surgery

...ith the daVinci System, the optics and fluidity of instrument movement are just amazing," adds Hockstein. "It has the potential to add great precision to our surgical treatment of a variety of diseases of the head and neck. ...

Two new retroviruses—transmitted from animals—identified

...ith the daVinci System, the optics and fluidity of instrument movement are just amazing," adds Hockstein. "It has the potential to add great precision to our surgical treatment of a variety of diseases of the head and neck. ...

Life detection instrument passes key test on road to Mars

...or sweating, Skelley ran 340 tests that proved the instrument could unambiguously detect amino acids, the buildi...he most Mars-like environment available, that this instrument is a thousand times better at detecting biomarkers than any instrument put on Mars before." The ins...

Team Invents Device For Weighing Individual Molecules

... frequency--just as thicker, heavier strings on an instrument sound notes that are lower than lighter ones. Because frequency can be measured so precisely in physics labs, the researchers are then able to evaluate extremely subtle changes in mass of the nanodevice, and therefore, the weight of the added atoms ...

Aptamer-based Biosensor screens Air Force personnel and equipment

...ts. "We've used our lab's expertise to develop an instrument that's complementary to the Air Force's technology...r at PNNL. "The rapid detection capability of this instrument will be useful in a variety of applications, even outside of the armed forces." With the prototype ...

Envisat and ERS-2 reveal hidden side of Hurricane Rita

... wind fields using its radar scatterometer. This instrument works by firing a trio of high-frequency radar bea...ing Envisat radar altimetry data Another Envisat instrument called the Radar Altimeter-2 uses radar pulses to measure sea surface height (SSH) down to an accura...

UIC developing drug for SARS

... beam of x-rays generated by a multimillion-dollar instrument at the Advanced Photon Source at Argonne National Laboratory. As the x-rays are bent, or diffracted, by molecular components, they create a pattern on an ultra-high-resolution x-ray camera. Computers then mathematically interpret the pattern to recon...

Sensor web simulation investigates technique to improve prediction of pollution across the globe

...totype software to recommend regions where the TES instrument could be commanded to look and make real measurements at key locations predicted by the model. "Our goal here is improve our ability to monitor and assess the Earth's environment," Talabac added. "With the sensor web, policy and decision makers will...

Errors in the measurement of global warming corrected

...ey to the error in climate change estimates lay in instrument design, according to this study. With exposed sensors, measurement taken in daylight read too warm, and while solar heating had a measurable impact on the earlier designs, the effect became negligible in more recent designs. "It's like being outside...

New law for resolution allows unprecedented sharpness in fluorescence microscopy

... century, the light microscope has served as a key instrument to the advancement of knowledge. For biology, this statement is true even today, since focused light is the only way to examine living cells non-invasively. However, because of the wave nature of light, focused light is subject to diffraction. As ear...

UCLA scientists reveal how Nipah virus infects cells

... did not bind to the cell. The scientists used an instrument that sorts molecules by weight to identify Ephrin-B2 as the receptor that bound to the bait. To confirm their findings, the UCLA team engineered a harmless virus with Nipah virus proteins embedded in its coat. The decoy virus successfully infected c...

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