Tag: "around" at biology news
Reduced Nutrients Still Cause Problems In The Neuse And Tar-Pamlico Rivers
... "Although the water-quality guidelines have been around
for many years, they remain relevant by providing some important clues as to why these two rivers seem to have more than their share of water-quality problems," said Tim Spruill, a hydrologist with the USGS. According to the report, a 50-percent redu...
Keep Off The Grass - Reduce Air Pollution
...ake things worse. Emissions of chemicals increase around
100-fold after grass is cut, taking hours to redu...rass are at their greatest in warm weather and at around
midday, when sunlight is most intense," says Mr Galbally. 'No gases are released at night.' "Aft...
Florida Or Bust? Older Lab Rats Seek Heat To Fight Infection, UD Researchers Report
...ents Laboratory rats reach the end of their lives around
30 months of age,Florez-Duquet notes. By 24 to 26 months of age, older rats in Satinoff'sexperiments demonstrate a strong preference for heated areas. "If you're a labrat with an infection," she says, "selecting a warm environment clearly is asmart t...
Infant Dependency Drives Menopause, NSF-Supported Researcher Reports
...f maternal care. Baboon reproductive rates decline around
age 21, which allows ample time for theyoungest infant to reach independence. Packer said that he found no evidence that menopause frees older femalesto help younger females raise offspring. Such behavior should result in highersurvival of i...
Chocolate Treats Can Land Racehorse Trainers In Trouble
...ghth day of feeding showed caffeine concentrations around
0.05parts per million and theobromine concentrations at about 9.5 parts permillion, enough to show up using current testing methods and enough to disqualifya horse. Caffeine and theobromine in these concentrations probably do notphysically aff...
UCSF Researchers Identify Mutations In Gene Causing Hereditary Form Of Childhood Rickets
...ctedfrom 20 patients in 18 different families from around
the world. Theyidentified nine mutations in the gene, known as P4501 alpha, and determined thatthese mutations give rise to truncated enzymes that are unable to carry outtheir catalytic activity. Six samples of the DNA were from French Canadians, am...
Invasive Weeds Pose Major Threat To American Landscape
...nduced migrations of invasive species now underway around
the worldis unprecedented," the report states. Unchecked, it adds, the impact "will be adevastating decline in biodiversity and ever-increasing threats to food andfiber production." In wild landscapes, the book concludes, invasive plants alterplant a...
High-Altitude Cerebral Edema Likely Caused By Leaks In Blood-Brain Barrier
...rain barrier and allow fluids to accumulate in and around
brain tissues. They theorize that acute hypoxia may allow a decline in cyclic adenosine monophosphate (cAMP), a chemical messenger involved in regulating capillary permeability. The decrease in cAMP may allow the cerebral capillaries to leak. ...
Research Into Cockroach Behavior Could Lead To Better Baits
...en sink, a right at the toaster oven and then loop around
the cookie jar and up the side to the lid that doe...ches are leaving for each other when they navigate around
your kitchen, say University of Florida researchers. And in roach research, that's big news, says en...
Birds Sing The 'Story Of Their Lives,' Theorize Duke Biologists
...nd food, evade predators, find nestsites, navigate around
his territory, and so forth," said Nowicki. The femalemight also be indirectly assessing the male's genetically endowed parentingabilities, since he is the result of his own parents' care. Or, the female mightbe assessing how well the male overcame t...
3,500 Earth And Space Scientists To Report Latest Findings At Boston Meeting
WASHINGTON, D.C. -- Some 3,500 scientists from around
the world willreport on and discuss their latest research results in fields ranging from theEarth's central core to the limits of the solar system at the May 26-29 SpringMeeting of the American Geophysical Union in Boston. This will be AGU's firstmee...
New Machine Slashes Time, Cost To Make Unique Lenses
...$100 per lens. "There isn't an optical device around
that wouldn't benefitfrom aspheres," says Harvey Pollicove, director of COM, which isnow testing the new machine. "Aspheres are used in nearly everyapplication for which they're affordable, and every engineer whodesigns optical devices wants to use t...
New Insights Into The Enigma Of Lengthening Longevity
...tes that death rates may level off at around
105 and even decline after age 110. The decline in old-age mortality is not restricted to Homo sapiens. Vaupel et al. estimated age trajectories of death rates for very large cohorts of four species of fruit flies, a paras...
...ants hooked up to avacuum that lowers the pressure around
their legs. This pulls blood to theirlegs, mimicking the effect of gravity and preventing "vascular deconditioning,"Absher said. By adapting this technique, doctors could determine at what bloodpressure a patient might be a risk of stroke or ...
Three Institutions Combine Efforts In First-Ever Demonstration Of Long-Term Function In Transplanted Human Liver Cells
...iver cell transplant, it has beensteadily hovering around
12mg/dl. The normal bilirubin level for most people isless than one. However, keeping the patient's bilirubin level below 20mg/dlsignificantly decreases the risk of brain damage. Since the procedure, the patient's daily phototherapy has been...
Novel Drug Trial To Treat Advanced Prostate Cancer Enrolling Patients At
UCSF/Mount Zion Cancer Center
...tended to block the growth of blood vessels in and around
tumorcells, thereby stopping the growth of the tumors themselves. The new UCSF/Mount Zion study will be a phase II clinical trial, thestage of new drug testing designed to determine a drug's effectiveness. To qualify for the anti-VEGF...
DFG To Fund Six New Research Units
...res will study the fundamental change thatoccurred around
1750 in the concepts for society and humanity. How do living creatures perceive their environment and how does newly acquired knowledgeguide their spatial action? This is the question that neurobiologists at Tbingen Universityintend to look into in t...
Scientists Unearth Remains Of A Predatory Dinosaur In Madagascar
...- is more closely related to animalsfound half way around
the world." The researchers suspect that a land connection composed largely ofAntarctica may have existed between South America and Madagascar during much ofthe Cretaceous period, allowing dinosaurs to travel the great distances betweenthese...
ASU Scientists Join NASA Astrobiology Institute
...h with the work of scientists at otherinstitutions around
the country. Planned to take advantage of t...ators and students at separate member institutions around
the country. The NGI will alsobe used to facilitate the development of a variety of "virtual" instit...
Killing Fields: A Bacterial Pesticide May Threaten Human Life
...cepacia is resistant to most antibiotics and kills around
a third of cystic fibrosis patients it infects wit...ray. "It seems very premature to start spraying it around
before we know what the risk is going to be," he says. Alison Hamer of the British agricultu...
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