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Science News Archive 2009 - Page 255


Page 255 of 277

End-of-life care at hospitals varies for children with cancer

A study published in Pediatric Blood & Cancer found significant variation in end-of-life care practices among children's hospitals, with substantial differences in opioid prescriptions and pain management. The findings highlight the need for individualized interventions to improve pediatric end-of-life care.

SourceWiley·JournalPediatric Blood & Cancer·DateFeb 4, 2009

Bacteria are models of efficiency

Researchers developed a mathematical model to evaluate the efficiency of bacterial protein production, finding that optimal efficiency requires seven genes for ribosome production. The model accurately predicted how E. coli adapts to disruptions in production workflow.

SourceWeizmann Institute of Science·JournalPLOS Computational Biology·DateFeb 4, 2009

Global warming threatens Antarctic sea life

Climate change is causing Antarctic sea life to face an invasion of predatory king crabs and exotic species, potentially devastating the region's unique ecosystem. Rising temperatures are allowing these species to expand their habitats, disrupting delicate ecological relationships and putting the world's last truly wild places at risk.

SourceFlorida Institute of Technology·JournalPLOS ONE·DateFeb 4, 2009

New plasma transistor could create sharper displays

Researchers created a plasma transistor to control plasma conduction current and light emission with an emitter voltage of 5 volts or less, enabling lighter, less expensive, and higher resolution flat-panel displays. The device uses a microcavity plasma containing electrically charged gas, which radiates light depending on the gas inside.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalApplied Physics Letters·DateFeb 4, 2009

Beaming new light on life

Physicists and chemists at the University of Utah developed a new method using silver nanoparticles to visualize internal structures in nearly opaque biological materials. The technique allows for the detection of fatigue in materials like carbon-fiber plastics used in aircraft, enabling regular inspections of fuselage integrity.

SourceUniversity of Utah·JournalNano Letters·DateFeb 4, 2009

Inuit are on the right track

The Inuit's vast geographic knowledge has been transmitted through generations by oral means, without written documentation. Their trails represent a sophisticated network of routes connecting communities across the Canadian Arctic.

SourceSpringer·JournalHuman Ecology·DateFeb 4, 2009

Research to provide information of long-term effects of childhood cancer treatment to parents

A study published by researchers at Rhode Island Hospital found that parents of childhood cancer survivors continue to need information about the late effects of treatment, which can include memory and concentration problems. The study suggests that early provision of this information may help prevent parental distress and recommends t...

SourceLifespan·JournalPediatric Blood & Cancer·DateFeb 4, 2009

World's biggest snake gives climate clues

Researchers found a colossal boa constrictor-like creature that stretched longer than a city bus and weighed over 1.25 tons, providing a rare window into past equatorial environment. The discovery suggests the mean annual temperature at equatorial South America during that time was nearly 33 Celsius, about six degrees warmer than today.

SourceUniversity of Toronto·JournalNature·DateFeb 4, 2009

Xenophobia, for men only

A new study by Michigan State psychologist Carlos David Navarrete found that men's fears are reserved for members of their own gender when it comes to out-groups. The findings suggest that this fear is linked to evolutionary history, with male faces being a potent cue for danger.

SourceAssociation for Psychological Science·JournalPsychological Science·DateFeb 4, 2009

Plan offers guidance for evaluating menopause-like condition in girls and young women

Primary ovarian insufficiency is a menopause-like condition affecting girls and young women, characterized by loss of menstrual periods, infertility, and hot flashes. A comprehensive plan provides recommendations for diagnosis and treatment, including hormone replacement therapy and counseling.

Babies & Robots: Infant power mobility on display

Researchers at the University of Delaware have developed miniature power chairs that infants can control, enabling children with cerebral palsy and spina bifida to explore their surroundings. This breakthrough technology has the potential to significantly impact brain development and learning abilities in these children.

More children need medical help for RSV than previously known

A study published in New England Journal of Medicine found that most children with RSV infections between 1 and 5 years old were previously healthy and had no other risk factors. The study estimates that about 1 in 334 hospitalizations, 1 in 38 emergency department visits, and 1 in 13 primary care office visits occur due to RSV infection.

SourceUniversity of Rochester Medical Center·JournalNew England Journal of Medicine·DateFeb 4, 2009

Nanoemulsion potent against superbugs that kill cystic fibrosis patients

Researchers have developed a nanoemulsion that effectively kills a wide range of bacteria resistant to antibiotics, including those causing cystic fibrosis. The treatment uses ultra-fine oil-and-water emulsions that disrupt bacterial outer membranes, making resistance unlikely and offering a potential alternative to antibiotics.

SourceMichigan Medicine - University of Michigan·JournalAntimicrobial Agents and Chemotherapy·DateFeb 4, 2009

Study finds Zen meditation alleviates pain

A University of Montreal study found that Zen meditators have lower pain sensitivity both in and out of a meditative state compared to non-meditators. Meditators experienced an 18 percent reduction in pain intensity, suggesting that meditation can change the way someone feels pain.

SourceUniversity of Montreal·JournalPsychosomatic Medicine·DateFeb 3, 2009