Brightsurf Science News & Current Events

February 17, 2008
Mathematical modeling offers new approaches to fight dual-resistant hospital infections
A mathematical model that looks at different strategies for curbing hospital-acquired infections suggests that antimicrobial cycling and patient isolation may be effective approaches when patients are harboring dual-resistant bacteria.

AAAS symposium to address significant effects of the male parent in reproductive success
A multidisciplinary symposium, sponsored by the American Association for the Advancement of Science, entitled

Novel mathematical model predicts new wave of drug-resistant HIV infections in San Francisco
A mathematical model shows that a new wave of drug-resistant HIV is rising among among men in San Francisco who have sex with men and that this trend will continue over the next few years, according to a new study from the UCLA AIDS Institute.

Ocean's fiercest predators now vulnerable to extinction
The numbers of many large shark species have declined by more than half due to increased demand for shark fins and meat, recreational shark fisheries, as well as tuna and swordfish fisheries, where millions of sharks are taken as bycatch each year.

Resuscitating our seas -- Noted UNH oceans expert to address annual AAAS meeting
Using the techniques of modern science alongside an historical understanding of the plentiful oceans from bygone days, University of New Hampshire ocean policy and fisheries expert Andrew A.

New technology makes 3-D imaging quicker, easier
Technology invented by scientists from The Johns Hopkins University and Ben-Gurion University of the Negev can make 3-D imaging quicker, easier, less expensive and more accurate.

New research reveals shark superhighways and hotspots
The world's sharks are disappearing. These fearsome yet charismatic fish continue to fall victim to overfishing and many are now at risk of extinction as a result.

Mission critical for carbon management
Integrating science and public policy with consumer needs and the global economy is critical if we have any chance of reducing carbon's effects on the climate, say scientists at the 2008 Annual Meeting of the American Association for the Advancement of Science.

Solar cell directly splits water for hydrogen
Plants trees and algae do it. Even some bacteria and moss do it, but scientists have had a difficult time developing methods to turn sunlight into useful fuel.

Insurance status, ethnic group predict stage at diagnosis for us patients with various cancer types
US patients who are uninsured or have Medicaid insurance, and those from ethnic minorities, are significantly more likely to present with advanced cancer at diagnosis than privately insured patients, according to an article to be published early online and in the March issue of the Lancet Oncology.

Stress hormone impacts memory, learning in diabetic rodents
Diabetes is known to impair the cognitive health of people, but now scientists have identified one potential mechanism underlying these learning and memory problems.

Roads not taken disappear more quickly than we realize
According to new research, comparisons and 'attentional collapse' are key reasons why people make mistakes when they try to predict future satisfaction.

Climate change has major impact on oceans
Climate change is rapidly transforming the world's oceans by increasing the temperature and acidity of seawater, and altering atmospheric and oceanic circulation, reported a panel of scientists this week at the American Association for the Advancement of Science annual meeting in Boston.

Brown expert connects resilience science and marine conservation
Brown University marine conservation expert Heather Leslie explains resilience science, a leading movement in ecology, and how it can produce more effective ocean protection poli-cies at the American Association for the Advancement of Science annual meeting in Boston.

MIT: No easy answers in evolution of human language
The evolution of human speech was far more complex than is implied by some recent attempts to link it to a specific gene, says Robert Berwick, professor of computational linguistics at MIT.

Scientist postulates 4 aspects of 'humaniqueness' differentiating human and animal cognition
Marc Hauser, a Harvard scientist, presents a new hypothesis on what defines the cognitive rift between humans and animals.

MIT physicist to describe strange world of quarks, gluons
One of the great theoretical challenges facing physicists is understanding how the tiniest elementary particles give rise to most of the mass in the visible universe.

2-way cell talk provides clues about neuromuscular disease
It's a scientific given that neurons tell other cells what to do, but new evidence suggests that, like with any good relationship, these target cells also have much to contribute, scientists say.

Will North Atlantic threshold response to ocean changes be enough?
Predictions that the 21st century is safe from major circulation changes in the North Atlantic Ocean may not be as comforting as they seem, according to a Penn State researcher.

Managing uncertainty important in ecological balance: ASU researcher
The balance of nature looms prominently in the public mind these days.

Symposium on drug-resistant diseases set for annual AAAS conference
Drug resistance is a major public health concern, and the problem of resistance continues to grow.

Small sea creatures may be the 'canaries in the coal mine' of climate change
As oceans warm and become more acidic, ocean creatures are undergoing severe stress and entire food webs are at risk, according to scientists at a press briefing this morning at the annual meeting of the American Association for the Advancement of Science in Boston.

There is 'design' in nature, Brown biologist argues at AAAS
Brown University biologist Kenneth Miller says the best way to communicate evolution in a religious America is to acknowledge that there is indeed a

Large changes needed to address global obesity epidemic
Rena Wing, a leading weight loss expert from Brown University and the Miriam Hospital, makes the case that big changes in diet and exercise are needed to prevent and treat obesity at the American Association for the Advancement of Science annual meeting in Boston.

The art of using science to inform ecosystem restoration in Puget Sound
NOAA's Mary Ruckelshaus will discuss how scientists assist managers with the difficult choices needed to restore the Puget Sound ecosystem.

Many, perhaps most, nearby sun-like stars may form rocky planets
Astronomers have discovered that terrestrial planets might form around many, if not most, of the nearby sun-like stars in the disk of our galaxy.

Major study links insurance status to advanced stage in multiple cancers
A new American Cancer Society study of 12 types of cancer among more than 3.5 million cancer patients finds uninsured patients were significantly more likely to present with advanced stage cancer compared to patients with private insurance.

Math model identifies key to controlling epidemic
A sophisticated new mathematical model identifies controlling the way that antiobiotics are prescribed and administered is the key to control the growing epidemic of antibiotic-resistant bacteria in hospitals around the world.

Family doctors should be involved in long-term follow-up of survivors of childhood cancer
Family doctors should be involved in the long-term follow-up care of children who survive into adulthood after cancer, according to a Dutch study to be published early online and in the March issue of the Lancet Oncology.
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