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Science News Archive 2012 - Page 99


Page 99 of 333

Pain drug can kill resistant tuberculosis

Researchers have found that an off-patent anti-inflammatory drug, oxyphenbutazone, can kill both replicating and non-replicating drug-resistant tuberculosis in laboratory tests. The effective drug may offer a potential new therapy for the over 500,000 people worldwide whose TB has become resistant to standard drug treatments.

SourceNewYork-Presbyterian·JournalProceedings of the National Academy of Sciences·DateSep 10, 2012

University of Maryland study: Neonatal heart stem cells may help mend kids' broken hearts

Researchers at the University of Maryland School of Medicine have found that cardiac stem cells from newborns have a three-fold ability to restore heart function compared to adult-derived cells. This discovery may lead to new treatment options for congenital heart syndrome and improve heart function in children by up to 15 percent.

Computer, read my lips

Researchers developed an emotion detector using a genetic algorithm that recognizes six human emotions and neutral expression. The system analyzes upper and lower lip shapes to improve interaction between humans and computers.

SourceInderscience Publishers·JournalInternational Journal of Artificial Intelligence and Soft Computing·DateSep 10, 2012

Droughts are pushing trees to the limit

Researchers found that droughts exacerbated by warming temperatures are causing plants to experience stressful growing conditions, especially in low to middle elevations. The study used a growing season index to model and map potential plant responses to droughts under past, present, and future conditions.

Crows react to threats in human-like way

A new study shows that crows react to threats in a human-like way, with brain regions activated similarly to those in mammals. The research used a novel approach to study bird behavior, involving awake crows wearing masks, and has implications for reducing stress in captive animals.

SourceUniversity of Washington·JournalProceedings of the National Academy of Sciences·DateSep 10, 2012

Wind power's potential

Researchers calculated wind power potential worldwide, accounting for climate impacts and found it exceeds global energy demands. The maximum theoretical potential is over 250 terawatts globally and 80 TW over land and ocean areas.

SourceUniversity of Delaware·JournalProceedings of the National Academy of Sciences·DateSep 10, 2012

100 most threatened species

A new report by the Zoological Society of London identifies 100 of the most threatened animals, plants, and fungi on the planet, highlighting their unique value to nature. The report emphasizes that all species have a right to exist and should be protected, regardless of their perceived utility for humans.

Vigorous physical activity associated with reduced cardiometabolic risk factors in youth

A Canadian study found that vigorous physical activity is associated with reduced body mass index z score, waist circumference, systolic blood pressure, and increased cardiorespiratory fitness in youth. The study included 605 youth aged 12.1 years and found that performing more than seven minutes of vigorous PA daily was linked to lowe...

SourceJAMA Network·JournalArchives of Pediatrics and Adolescent Medicine·DateSep 10, 2012

UGA chemistry discovery could have major medical implications

Researchers at UGA have made a major medical breakthrough by discovering how an oxygen-sensing bacterial protein senses oxygen through reversible structural changes in an iron-sulfur cluster. This mechanism could ultimately lead to a better understanding of the aging process and new treatments for human diseases.

SourceUniversity of Georgia·JournalProceedings of the National Academy of Sciences·DateSep 10, 2012

Metabolic engineer synthesizes key breast milk ingredient, makes research possible

A University of Illinois metabolic engineer has synthesized a key breast milk ingredient, 2-fluoro-lactose (2FL), which could lead to the development of infant formula. This breakthrough allows researchers to study the role of 2FL in infant nutrition and make recommendations for its addition to infant formula.

LifeSkills training helps teens manage anger, lower blood pressure

A 10-week LifeSkills program improved teens' ability to control anger, decreased anxiety, and lowered blood pressures, with benefits holding up at six months. The program, adapted for adolescents, teaches assertiveness, sound decision-making, and positive interactions to reduce stress and improve overall well-being.

SourceMedical College of Georgia at Augusta University·JournalTranslational Behavioral Medicine·DateSep 10, 2012

Uncovering the genome's regulatory code

A team of researchers developed an automated system to map protein-DNA interactions, uncovering a hierarchical structure for the regulatory code. They found that regulatory factors can be classified into three levels, with each tier governing cell type, sub-identity and specialized gene expression.

SourceWeizmann Institute of Science·JournalMucosal Immunology·DateSep 9, 2012

Protecting genes, one molecule at a time

An international team of scientists has shown at an unprecedented level of detail how cells prioritize the repair of genes containing potentially dangerous damage. Cells use proteins to detect and replace damaged DNA, with critical steps at individual protein reads likely critical for successful repair.

SourceUniversity of Bristol·JournalNature·DateSep 9, 2012

Wolf mange part of nature's cycle

Researchers tracked parasite-induced disease and death in reintroduced wolf packs in Yellowstone National Park, finding that mange did not infect wolves until 2007. The diseases that infected the wolves quickly were all viral, including canine distemper and parvovirus, while mange is a skin infection caused by scabies mites.

SourcePenn State·JournalPhilosophical Transactions of the Royal Society of London (B )·DateSep 9, 2012