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Science News Archive August 2008 - Page 8


Page 8 of 17

Novel fungus helps beetles to digest hard wood

A team of researchers discovered a novel fungus in the gut of Asian longhorned beetles that helps break down lignin, a protective barrier for plants. The fungus produces enzymes that enable the beetles to digest hard wood, leading to potential breakthroughs in pest control and biofuel production.

SourcePenn State·JournalProceedings of the National Academy of Sciences·DateAug 18, 2008

Dirty smoke from ships found to degrade air quality in coastal cities

Researchers at UC San Diego found that ship smoke can be a significant contributor to poor air quality in coastal cities, particularly in California. The study reveals that high-sulfur fuel emissions from ships burning bunker oil can produce primary sulfate particles, which are especially fine and harmful to human health.

SourceUniversity of California - San Diego·JournalProceedings of the National Academy of Sciences·DateAug 18, 2008

Many US public schools in 'air pollution danger zone'

A recent study found that over 30% of American public schools are within 400 meters of major highways, putting children at risk for respiratory diseases. The research suggests that proximity to highways and environmental pollutants can leave school-age children more susceptible to asthma and other chronic respiratory problems.

SourceUniversity of Cincinnati·JournalJournal of Environmental Planning and Management·DateAug 18, 2008

Aboriginal kids can count without numbers

A new study by UCL and the University of Melbourne found that Aboriginal children from restricted vocabularies could copy and perform number-related tasks. They were able to recognize and represent numerosities without relying on number words, suggesting an innate system for counting.

SourceUniversity College London·JournalProceedings of the National Academy of Sciences·DateAug 18, 2008

Restoring Alabama's coast

The Alabama Department of Conservation and Natural Resources has partnered with the Dauphin Island Sea Lab to conduct extensive habitat restoration, monitoring, and research along the Alabama coast. The partnership will utilize $1.5 million in funding to construct shoreline restoration projects and monitor their efficacy.

When the patient can't decide

Research reveals physicians often grapple with balancing patient needs with those of surrogates in medical decision-making. Surrogate decision-makers' wishes can sometimes take precedence over patient prior wishes, highlighting the complexity of this process.

Pesticide build-up could lead to poor honey bee health

Researchers found unprecedented levels of fluvalinate and coumaphos in beeswax, while pollen and bees showed lower levels of other pesticides. A new method using gamma radiation reduced acaricide load in beeswax by 50%. The study highlights the need for monitoring pesticide interactions and potential links to Colony Collapse Disorder.

Urologists report success using robot-assisted surgery for urinary abnormality

A team of urologists has successfully used robot-assisted laparoscopic surgery to repair abnormal openings between the bladder and vagina, known as fistulas. The procedure resulted in less blood loss and faster recovery times compared to traditional abdominal surgery, offering a promising alternative for women with this condition.

SourceAtrium Health Wake Forest Baptist·JournalThe Journal of Urology·DateAug 18, 2008

UNC study: 'chilling' hardship rates among families raising disabled children

A new UNC study finds that families with disabled children, regardless of income level, experience significant challenges with food, housing, and health issues. The study suggests expanding eligibility standards for federal programs to assist these families, including increasing income limits for food stamps and housing assistance.

SourceUniversity of North Carolina at Chapel Hill·JournalExceptional Children·DateAug 18, 2008

Mirror self-recognition in magpies

A study published in PLOS Biology found that magpies exhibit self-recognition in a mirror test, recognizing their own image as themselves. This discovery indicates that non-mammalian species can engage in self-recognition behavior, challenging the assumption that advanced cognition is exclusive to mammals.

SourcePLOS·JournalPLOS Biology·DateAug 18, 2008

How daughter is different from mother in yeast cells

Researchers discovered a new mechanism for cell fate determination in yeast cells, showing how the daughter cell becomes dramatically different from its mother. The Ace2 gene regulator is trapped in the daughter nucleus, turning on genes that make it distinct.

SourcePLOS·JournalPLOS Biology·DateAug 18, 2008

Catalyst mystery unlocked

A team of researchers has developed a computational model that challenges entrenched ideas about enzyme catalysis, proposing a method for designing custom-designed enzymes. The 'lock and key' model is replaced by an electrical attraction theory, suggesting a perfect physical fit between catalyst and substrate is not necessary.

SourceUniversity of Southern California·JournalProceedings of the National Academy of Sciences·DateAug 18, 2008

Lack of tuberculosis trials in children unacceptable

Despite being an important part of TB control efforts, children are underrepresented in TB drug development. Key findings include: Children make up 20% of new TB cases and are at high risk of severe TB forms. The lack of child involvement is due to barriers such as diagnostic challenges, side effect concerns, and regulatory requirements.

SourcePLOS·JournalPLOS Medicine·DateAug 18, 2008

Limbs saved by menstrual blood stem cells

Cells from menstrual blood, known as endometrial regenerative cells (ERCs), have been shown to restore blood flow in a mouse model with advanced peripheral artery disease. This breakthrough discovery holds promise for the treatment of critical limb ischemia, which causes approximately 150,000 amputations per year.

SourceBMC (BioMed Central)·JournalJournal of Translational Medicine·DateAug 18, 2008

Improved technique determines structure in membrane proteins

Researchers at the University of Illinois have developed a new technique to determine the atomic-scale structure of membrane proteins using solid-state nuclear magnetic resonance spectroscopy. This breakthrough enables high-resolution structural information, which is crucial for understanding protein function.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalProceedings of the National Academy of Sciences·DateAug 17, 2008

Researchers create safer alternative to heparin

Researchers at Rensselaer Polytechnic Institute have developed a fully synthetic heparin alternative that is safer and more pure than traditional heparin. The new version uses a process called chemoenzymatic synthesis to replicate the natural biosynthesis of heparin, resulting in a higher dose and lower risk of contamination.

SourceRensselaer Polytechnic Institute·JournalJournal of the American Chemical Society·DateAug 17, 2008