Tag: "measurement" at biology news
Groundbreaking research could ignite new solutions to heat transfer in nano-devices
...search technique successfully completed a detailed measurement
of how heat energy is created at the molecular level, an approach that could have far reaching implications for developing nano-devices. Research results to be published in the upcoming issue of Science, detail a collaborative effort involving The Un...
Molecular motor myosin VI moves 'hand over hand,' researchers say
...clearer to scientists using an extremely sensitive measurement
technique. Myosin VI, they found, moves by the sa...escence Imaging with One Nanometer Accuracy -- the measurement
technique can track the position of a single molecule to within 1.5 nanometers. (One nanometer is a...
JCI table of contents, 16 August, 2004
... for prostate cancer progression, that soluble MIC measurement
may be a useful biomarker for disease progression, and that cytokine treatment may aid in reestablishing natural killer cell anti-tumor activity. TITLE: Prevalent expression of the immunostimulatory MHC class I chainrelated molecule is counteracted b...
MICs shed light on prostate cancer
... for prostate cancer progression, that soluble MIC measurement
may be a useful biomarker for disease progression, and that cytokine treatment may aid in reestablishing natural killer cell anti-tumor activity. ...
Got the time?
...acy. To test the robustness of this molecular time measurement
system, they measured the expression levels of the 168 genes at the lights-out phase in animals kept in conditions of alternating 12-hour periods of light and dark. This phase is presumed to be a hotbed of circadian regulatory activity, as the mouse'...
New hypoxic event found off Oregon coast
...adings in that same range," Chan said. "One recent measurement
taken at a 30 meter depth station just 1.2 miles off Newport found dissolved oxygen at 0.8 milliliters per liter. Further offshore and to the south, we've found oxygen levels in deeper areas of the shelf to be as low as anything we saw in 2002." In ...
Endangered turtles' trek along ocean currents revealed by satellite
...he sea every second extremely precise ocean height measurement
is made possible. Height anomalies detected by thi...he result is a more frequent and higher resolution measurement
of sea level anomalies than any one spacecraft could achieve. For example, now that ERS-2's global m...
Forest fire sensor inspired by nature
...ot yet as sensitive. In identifying a principle of measurement
previously unknown in nature and in technology, the scientists have taken the idea from a small insect: the jewel beetle, which lays its eggs in the wood of freshly burned trees, is said to be able to detect forest fires from a distance of 80 kilomet...
Microarrays, key genome expression trackers, work better when probes are sequence-verified
...& Women's Hospital The study, entitled "Increased measurement
accuracy for sequence-verified microarray probes,"...most reliable information to verify equivalence of measurement
across technologies," the researchers conclude. The authors have created a website for checking sequ...
Heat and exercise alone may not determine how much we sweat
...d in this position for 30 minutes while additional measurement
devices were attached. After five minutes of basel...g movements. Each subject was instrumented for the measurement
of esophageal temperature with a probe (thermistor) swallowed to the level of the left atrium. Skin ...
Cinnamon oil kills mosquitoes
..." Chang says. Larvicidal activity is judged with a measurement
called LC50. "The LC 50 value is the concentration that kills 50 percent of mosquito larvae in 24 hours," Chang explains. Lower LC 50 translates into higher activity, because it takes a lower concentration to kill larvae in the same amount of time....
Access to DNA secrets yields better understanding of genes, possible tool for disease diagnosis
...essible because there was not enough RNA to make a measurement
of their activity. "We can get information on a much larger number of genes, and whether or not they are in a state in which they can make RNA, using this technique than by using traditional RNA microarrays," Dr. Garner said. "This technology can tel...
New national research effort needed to secure clean, adequate water supply in coming decades
...years, there have been substantial declines in the measurement
of stream flow, groundwater levels, water quality, and water use, the committee found; in some areas measurements have been completely eliminated. A new entity is needed to coordinate water research at the national level because no structure is in pl...
UK researchers develop way of predicting a woman's 'reproductive' age
...g in the ovaries of women of reproductive age. The measurement
of ovarian volume by transvaginal ultrasound will ...erve and reproductive age through the transvaginal measurement
of ovarian volume for all interested women would be a real advance," said Dr Wallace. "It opens the ...
Gene expression ratio identifies risk of recurrence in breast cancer patients receiving tamoxifen
A simple measurement
of the expression levels of two genes in breast cancer tissue appears to identify tumors that are more likely to recur in women treated with tamoxifen for early-stage disease. Determining patients for whom tamoxifen treatment is likely to fail would...
Uncertainty in clinical tests raises health care costs
uncertainties in clinical laboratory tests can add large amounts to health care costs, according to a newly released study commissioned by the National Institute of Standards and Technology (NIST). The study,* conducted by RTI International (Research...
University of Michigan symposium charts course for the future of telemedicine
...th special emphasis on research design and outcome measurement
in a variety of health care settings Description of emerging technologies, including wireless and broad band systems, for telemedicine and clinical decision support with an emphasis on the practicality, advantages and disadvantages, and potential c...
K-State soil carbon sequestration research playing role in climate change efforts
...il carbon and greenhouse gas emissions accounting, measurement
and monitoring and verification systems. The two groups also will co-sponsor a symposium at the U.S.-Canadian Soil Science Societies Meetings in November in Seattle, Wash....
New database aids medical device exporters
...ational database has been released that identifies measurement
procedures and materials that will help U.S. maker...devices be traceable to appropriate "higher order" measurement
procedures and/or certified reference materials, such as those from internationally recognized natio...
Glowing microspheres improve fluorescence measurements
...bined with previously developed NIST standards and measurement
procedures, now will provide an authoritative national fluorescence measurement
scale. Each kit contains six vials of microspheres that emit fluorescent light at six different inte...
1 2 3 4 5 6 7 8 9 10