Tag: "lower" at biology news
Honeybees In The Wild Nearly Gone In North America
... the honeybee blightin smaller yields and smaller, lower
quality fruits and vegetables,Tew said. The lower
the number of a plant's seeds "set"by pollination, the lower
the quality of the fruit, he said. Infr...
Water Recycling Project Tested in Turkey Plant
...,the water temperature could initially be from the lower
50s to the 70s,thus requiring a major expenditure of energy to cool the incoming water.Recycled water has already gone through the initial major cooling processand needs only to be reduced by a couple of degrees as it makes subsequenttrips through th...
How Birds Sing
...formation, while the component bits are managed by lower
brain centers. The research is reported in today's...res, but the individual notes get filled in by the lower
brain regions. This sort of hierarchical organization of the brain's motor functions had long been s...
NCAR Scientist Models Earth's Climate and Vegetation Patterns At Last Glacial Peak
... a global average temperature four degrees Celsius lower
than now and atmospheric carbon dioxide (a greenhouse gas) at just over half of today's levels. Felzer's study checks the NCAR model's reliability by simulating past climates and comparing its results to geological data, such as pollen deposited in l...
Impact of Meteorites, Drop in Sea Level Caused Mass Extinctions 65 Million Years Ago
...gher figure than some scientists had expected, but lower
than others anticipated, he says. The substantial drop in sea level, which had peaked at least 10,000 years before the comet struck, accounts for between zero and 25 percent of the extinctions. In addition, about 25 percent of the extinctions were ...
Robots, Virtual Reality & Other "Smart" Tools Soon Will Help Physicians Heal Patients
...e to improve patient care and, in many cases, even lower
the cost of treatment." Plans for new surgical simulations, image-guided therapies, robotics and teleinterventions are described in a new 135-page report, edited by Anthony M. DiGioia, Takeo Kanade and Peter Wells. The report summarizes the f...
Prostate Cancer May Be Predicted 10 Years Before Diagnosis
..., the ratio of free to total PSA was significantly lower
for cancer cases (0.13?0.01) compared to BPH (0.17?0.01) and control cases (0.21?0.02). The values that most accurately detected prostate cancer were free to total PSA ratio of ?0.12 when total PSA was between 4.0 - 10.0ng/ml. "The majority of men w...
Selenium Supplements Can Reduce Cancer Rates
...in cancer risk. The fact that we saw a pattern in lower
incidence and mortality rates across all the clinics gives us even greater confidence in these findings." Prostate, esophageal, colorectal and lung cancer rates were among the most dramatic: patients in the selenium group had 71 percent, 67 percent, ...
A Phoenix From A Ring Of Fire Is A Pattern For The Recovery Of Mount St. Helens
...s that live on the upper slopes cannot live in the lower
elevations, so the volcano might just as well be in the ocean." The recovery of Mount St. Helens will come through natural, cyclical regeneration, says Edwards. Although eruptions are viewed as cataclysmic events, they have happened ma...
Malnutrition Impacts Longevity Of Females More Than Males And Shows Gender Differences In Fruit Flies
...determinewhy death rates level off sooner and at a lower
level for female Medfliesthan for their male counterparts. This earlier flattening of the femalemortality curve was observed in protein-deprived medflies studied in the1992 "Oldest-Old" project, funded by the National Institute onAging. That project ...
Pets Provide Physiological Benefits For Women Living Alone
...sults showed that blood pressure of pet-owners was lower
than that of non-pet-owners in both age groups. A...g elderly women, those with pets had significantly lower
blood pressure readings than those without pets. Among elderly women with little social suppor...
President's Budget Proposal Cuts R&D By 14 Percent By 2002
...and the National Science Foundation (NSF) would be lower
in FY 1998 than they were in FY 1994. Outyear projections in the budget call for additional cuts, beyond those that have already occurred. The AAAS analysis of the President's latest balanced budget plan projects a 14 percent cut in total R&D fundi...
Purdue Study Aims To Boost MRI Capabilities
... Research Center. In addition, such machines could lower
the cost of MRI scans, because each patient would spend less time in a machine, Bourland says. "In some cases, scans that previously required 15 minutes can now be done in one to one-and-a-half minutes," he says. Though faster scanning techniques may...
Project Shows Native Bacteria Can Destroy Widespread Pollutant In Groundwater
...as designed to create a bacterial-rich zone in the lower
aquifer and to pump water from the upper aquifer to the lower
one. The second well was designed to create a bacterial-rich zone in the upper aquifer and to pump w...
Children With AD/HD Have Significant Functional Disabilities Related to Attention Deficit
... The 43 children assessed were found to have lower
than normal Wee-FIM scores overall, and to show significant deficits in self-care, social cognition and communication. There also was a correlation between inattention symptoms reported by parents and the self-care and social cognition deficits char...
Supelco Licenses ORNL Solid Sorbent Air Sampling Material
... array ofmaterials because it allows us to achieve lower
limits of detection thanwere once possible," said George Wachob, Supelco's manager of research anddevelopment. The ORNL air sampler comprises a tube containing a sol-gel sorbent, whichis an organic-inorganic composite material. The sol-gel sorbent t...
Hot 'Lanta: NASA, School Kids Team To Study How Trees Help Cities Keep Their Cool
...y help cities reshape themselves for comfort - and lower
heating bills - and help developing nations avoid the same mistakes. For the convenience of newspaper and magazine editors, we have...
Low Iron Levels Cause Weakness In Women Who Are Not Anemic
...f effort. They found that iron-depleted women had lower
physical work capacity, and their performance was related to the amount of stored body iron. "This shows that women who are not anemic but iron-depleted are impaired in oxygen utilization, something we suspected but did not know for certain," Haas ex...
Calorie Restriction Reduces Age-Related Muscle Loss
...ative activity. What's more,they had significantly lower
numbers of mitochondrial gene deletions. "These findings support the notion that abnormalities inmitrochondrial activity may contribute to sarcopenia," said Weindruch. "CRinitiated in late middle age apparently can slow the progression of thispervas...
How Dry Is The Tropical Free Troposphere? Implications For Global Warming Theory
...easurements obtained fromsatellites of the Earth's lower
atmosphere reveal no definitive warmingtrend ove... data are verifiedby in-situ measurements of the lower
atmosphere made by balloon-borneobservations around the world. Some scientists now believe that th...
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