Tag: "quantified" at biology news

'Bat-n-man'

...ware, and custom-written software. Responses were quantified as the total number of spikes elicited over 30 stimulus presentations. Results are based on both single- and multiunit cluster recordings. Results As in other species studied, neurons of the same binaural type are organized in homogeneous cluste...

Other highlights in the Feb. 6 issue of JNCI

... of the National Cancer Institute, and colleagues, quantified the risk of treatment-associated lung cancer, taking into account tobacco use in a casecontrol study of Hodgkins disease survivors. Treatment with alkylating agents without radiotherapy was associated with a fourfold increased risk of lung cancer. Ra...

A major scientific survey finds more species than in the entire Mediterranean at Lifou, Loyalty Islands

... is the only study to have available an exhaustive quantified inventory of the species richness of a whole site. An international network of 120 taxonomists is being coordinated by the MNHN to study this wealth of fauna. Many more years of investigation will be needed before these samples can yield all the info...

A 2,000 year-old technique may hold the key to acupuncture's therapeutic effect

...and therapeutic significance of de qi, researchers quantified needle grasp by measuring the force necessary to pull an inserted acupuncture needle out of the tissues (pullout force). They also hypothesized that: Pullout force is greater with two different types of needle manipulation commonly used in acu...

UC Berkeley expert on insect flight receives prestigious MacArthur 'genius' award

...fish swim. "Michael is the only one I know who has quantified the forces on a moving biological appendage." In other experiments he and his laboratory colleagues dissect fly flight muscles and nerves to tease out their interconnections or to record electrical signals from them. "There is nobody in the world who...

Researchers reveal new clues about spread of colon cancer

...oving a phosphate from them. When the scientists quantified the level of PRL-3 expression in normal, non-metastatic and metastatic tissues, they found clear differences. "This gene was expressed at very low or undetectable levels in normal colon epithelium," said Vogelstein. "It was expressed at low levels in...

Study focuses on antioxidant capacity of honey

... from different floral sources were identified and quantified at the University of Illinois, Urbana-Champaign. These results were presented today at the annual meeting of the Institute of Food Technologists. Antioxidants continue to be the hot topic in product development circles, as science is looking beyond...

Study: 'Pill' may cancel some bone-building benefits of exercise

...unro Peacock, and C. Conrad Johnston The effect of quantified resistance and high impact exercise training on bone mass as modified by age and oral contraceptive use in young women was studied. Methods: Women were categorized by age (18-23 vs. 24-31 years) and oral contraceptive use, and were then randomized in...

European Parliament calls for action in epilepsy

...heir life2. The real burden of epilepsy cannot be quantified - not only does it have a huge economic impact, costing Europe an estimated 20 billion ECU every year2, but epilepsy also has profound physical, psychological, and social consequences on society. Professor Martin Brodie, Chair of Commission on Euro...

Conservation under the shade coffee canopy: ant-bird interactions in Panama croplands

...d attending swarms. The researchers observed and quantified ant-bird interactions in several different landscapes: areas of intact forest; shade growing coffee lands which were adjacent to forests; shade growing areas which were some distance from forested areas; and areas where coffee was grown in full sun. ...

Grasslands, deserts, mountains and fire

...esearch Service and the University of Nevada-Reno, quantified the effects of experimental fires on seed banks in the Mojave Desert of northwestern Arizona. The experiment was part of a larger study designed to understand plant community changes in response to wildfire, invasive annual grasses and seed-eating an...

UK study finds men also have a biological clock

...period of time) has never before been confirmed or quantified by studies in the general population, so this research by teams at Bristol and Brunel universities** is the first to provide clear evidence that the age of the man, as well as the woman, is an important factor in conception. The conclusions have be...

Research changes surface mine reclamation practices, policy

....vt.edu/resmag/resmag2000a/trees.html ) Rodrigue quantified the diversity, productivity, commercial value, and carbon-capture potential of 21 mined and reforested sites across a seven state region and a spectrum of mining history and conditions. The Plass award is given for outstanding contributions to the...

A new picture of the brain may reveal the key to Alzheimer's

...me time, but this is the first time they have been quantified and compared in normal and diseased brains. Furthermore, the study revealed that the absence of microcolumns is in direct proportion to the number of fibrillary tangles in the brain, but not related to the number of senile neuritic plaques. Tangles a...

Carilion, Virginia Tech, U.Va. create biomedical institute -- Virginia Tech forms optical sciences and engineering research center

...human and animal conditions might be identifiedand quantified through this technique. Advanced Laser Surgery Optics The use of laser scalpels has revolutionized surgery. The delivery of high powered laserenergy from the laser to the point of application is currently implemented via multi-modeoptical fiber wav...

USGS Study Confirms An Urban Air-Pollution Problem At Mount Rainier National Park

... Mount Rainier National Park from1993 to 1997, and quantified the spatial distribution of this pollutantthroughout western Washington in 1996. The park consistently had the highestaverage weekly levels of tropospheric ozone measured anywhere in the state.Ozone concentrations tend to increase at higher altitudes...

Go For The Burn

...on and Washington. The resultsof this study, which quantified the emissions expected from oil burning, allowedofficials to make a quick determination that burning the New Carissa's oil waspreferable to traditional clean-up and disposal methods which, in this instance,would have proven inefficient and impractica...

New Research Shows Loggerhead Sea Turtles Sustain Delicate Dunes

...have onthe ecosystem," Bjorndal said. "We've never quantified those impacts." Bjorndal said possible consequences of a beach losing the nutrientsprovided by the sea turtles include loss of plant growth, which can lead todune destabilization and erosion. In addition, insects and other herbivoresthat eat ...

Microsurgery Made More Accurate With Virtual Measuring Tool

...he experiment reported here, the measurement error quantified was well within acceptable limits for most surgical procedures. It is important to note that the small errors observed here may have resulted from inherent limitations in the human operator's ability to perform the alignment task, since this task r...

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