Brightsurf Science News & Current Events

July 26, 2004
Trapped immune cells contribute to plaque buildup in arteries
Some lipid compounds may promote the build up of plaque in arteries by causing immune cells to get

DNA tests point to extinction of 2 distinctive arctic bird populations
Rock ptarmigan in Newfoundland, Alaska should be on

NSF awards $10 million in grants to ocean sites for long-term ecological research
Coral reefs and coastal upwelling ecosystems are the subjects of two new Long-Term Ecological Research (LTER) sites awarded funding by the National Science Foundation (NSF).

Insecticide resistance: A constraint on evolutionary change
Researchers have identified that a specific point in the genetic code appears not only to control an organism's resistance to a class of pesticides but also to significantly influence the ability of an organism to evolve such resistance at all.

New world record magnet for chemical and biomedical research
The National High Magnetic Field Laboratory, funded by the National Science Foundation and the State of Florida, has achieved another world record in magnet development with the successful testing of its 21.1 Tesla, superconducting, ultra-wide bore, NMR magnet.

NSF grants $1 million to number theory project by Boston College, Stanford, Brown, Columbia
A team of researchers from Boston College and Stanford, Brown and Columbia universities have been awarded $1.05 million in grants from the National Science Foundation for their effort to apply a concept called Multiple Dirichlet Series -- the study of multi-variable generalizations --to analytic number theory, a central area of modern math used in encryption and data-transmission algorithms.

Growing tiny totally tubular formations
An accidental discovery may provide insights into the creation of tubular structures such as those found in caves and at hydrothermal vents.

Physical symptoms appear to predict cancer prognosis
According to a new study, physical symptoms that impact quality of life, such as nausea and shortness of breath, may predict shorter survival for patients with terminal cancer.

Springtime blooms seen earlier now than in the past, say Boston University biologists
Taking something of a back-to-the-future approach, biologists from Boston University have looked into the past to find that flowering plants growing today blossom more than a week earlier than a century ago.

End-of-life treatment decisions might not be consistent with patients' advance directives
In a study using hypothetical cases, physicians commonly made end-of-life treatment decisions that were not consistent with patient preferences stated in explicit advance directives, according to an article in the July 26 issue of The Archives of Internal Medicine, one of the JAMA/Archives journals.

Migraines more likely to occur around menstruation, medication may prevent more than half
Approximately half of all women who seek clinical treatment for migraines have reported an association between migraine and menstruation, and a recent study confirms their experience.

Income and education linked to outcome in cervical cancer
Despite a backdrop of declining rates, a new study concludes cervical cancer continues to be a more serious threat to women with low incomes and educational levels.

Leptin and obesity
A quick and potent peptide produced in the base of the brain is the key to revving up metabolism - helping people burn calories and lose weight, researchers at Brown and Harvard medical schools have discovered.

Fluid derived from aloe plant prolongs life after hemorrhagic shock in animal study
A novel resuscitation fluid derived from aloe vera that was developed by researchers at the University of Pittsburgh's McGowan Institute for Regenerative Medicine has the potential to save the lives of patients with massive blood loss, according to results of an animal study published in the August edition of the medical journal Shock.

Double-segment periodicity underlies 'odd' segment generation in centipedes
In studying the way groups of cells are patterned or arranged to form segments in the developing embryo, researchers have identified a developmental

Ocean scientists assess impact of seismic pulses in effort to protect whales
Scientists investigating the possible effect of underwater seismic pulses on marine mammals have conducted tests to better understand the force of sound waves generated by shipboard airguns.

Joint electron-beam research grant aims at Mars -- and the stars
Texas A&M University research will contribute to future Mars missions thanks to a partnership between the College of Agriculture and Life Sciences, the Dwight Look College of Engineering and NASA.

Hunt for a new plant hormone points to carotenoids
In looking for clues to the identity of a mysterious new plant hormone, a research team lead by Ottoline Leyser of the University of York has come one step closer in finding a gene required for the hormone's synthesis.

Negative self-image of adolescents fosters increasingly damaging behaviors
Adolescents who think little of themselves tend to shy away from interactions with peers.

Researchers find that color perception is not innate, but acquired after birth
Rearing experimental animals under special illumination, researchers have found new evidence that early visual experience is indispensable for the development of normal color perception.

More than half hospitalized stroke patients likely treated for hypertension against guidelines
As many as 65 percent of stroke patients are likely to be treated with antihypertensive medications during the first four days of hospitalization, despite current guidelines that recommend against treating all but the most severe cases of hypertension during the first few days following a stroke.

IEEE-USA testifies for balance in copyright policy
Copyright owners should not be permitted to restrict the development of technology having non-copyright-infringing uses, unless the developer actively and independently induces a copyright infringement, Andrew C.

Getting relief from pain can be shocking
People suffering from chronic pain caused by a nerve injury are experiencing relief through the use of electrical stimulation of the spinal cord.

Putting GPS to work, researchers shed light on road-following by pigeons
Using satellite tracking to study the paths pigeons take on homeward-bound journeys, researchers have obtained strong new evidence to support a long-held theory: in some environments, pigeons instinctively learn to follow major roadways in navigating their flight.

Newer osteoporosis drugs associated with increased patient visits and treatment
New medications for osteoporosis, offering improved efficacy and convenient dosing, are associated with increased frequency of patient visits and treatment.

Stem cells fill gap left by stroke, say Stanford researchers
Researchers at Stanford University School of Medicine report the first success using stem cells to populate the damaged region with new neurons in rats.

Location of potential familial lung cancer gene discovered
Researchers have discovered a possible inherited component for lung cancer, a disease normally associated with external causes, such as cigarette smoking.

CBEN wins grant for undergraduate nanotech course
Rice University's Center for Biological and Environmental Nanotechnology has won a $100,000 National Science Foundation grant to develop Rice's first introductory nanotechnology course for undergraduates.

Genome-wide analysis provides detailed understanding of flesh-eating bacteria epidemics
New research using nearly a dozen different genomic testing procedures has revealed unprecedented detail about the molecular characteristics and virulence of group A streptococcus (GAS), the

New UNC, EPA 9/11 study suggests that pollutants posed small cancer risks
On Sept. 11, 2001, when hijacked jetliners smashed into the World Trade Center, stunning the world, collapse of the twin towers and the fires that followed lofted an estimated million tons of dust and smoke into the air of New York City.

Millions of osteoporosis sufferers go undiagnosed, Stanford study finds
Despite recent gains in the awareness and treatment of osteoporosis, millions of Americans who have the disease remain undiagnosed and untreated and may learn of their condition only when they suffer a fracture, Stanford University School of Medicine researchers report.

High-tech employment shrinks in second quarter, despite positive signs on unemployment rates
The number of employed computer professionals dropped from the first to second quarters, according to data compiled by the Department of Labor's Bureau of Labor Statistics (BLS).

K-State researcher links cigarette smoke, vitamin A deficiency and emphysema
While studying the relationship between vitamin A and lung inflammation, a Kansas State University researcher made a surprising discovery -- a link between vitamin A and emphysema in smokers.
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