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Science News Archive January 2011 - Page 15


Page 15 of 22

Fastest movie in the world recorded

Researchers at Helmholtz Association create ultrafast image sequences of nanostructures, enabling real-time observation of molecules and nanostructures. The breakthrough method uses X-ray pulses to capture images at femtosecond intervals, paving the way for new insights into fundamental processes in natural sciences.

SourceHelmholtz Association·JournalNature Photonics·DateJan 12, 2011

Virus killer gets supercharged

Rice University researchers have developed a method to enhance the effectiveness of a common disinfectant, increasing its ability to degrade aerosol- and water-borne viruses by more than three times. The new technique involves adding silicone to titanium dioxide, which is widely used in paints, sunscreen, and food coloring.

Deep genomics

The modENCODE project has made significant breakthroughs in understanding the epigenome, a complex system that regulates gene expression in eukaryotic organisms. By analyzing the epigenetics of fruit flies and round worms, researchers have gained insights into how DNA packaging affects organism development.

How children cope with the aftermath of a hurricane

A recent study by the University of Miami found that 35% of children experienced moderate to severe posttraumatic stress symptoms almost two years after Hurricane Charley, and those who still showed signs of stress at nine months were likely to persist with symptoms another year later. Social support from peers was also found to be cru...

SourceUniversity of Miami·JournalJournal of Consulting and Clinical Psychology·DateJan 12, 2011

Quantum quirk contained

Researchers at the University of Calgary have made a significant breakthrough in creating quantum networks by storing information in entangled photons. This achievement brings the field closer to reality and has the potential to enable building quantum networks in a few years.

SourceUniversity of Calgary·JournalNature·DateJan 12, 2011

Origins of the pandemic: Study reveals lessons of H1N1

A new study in BioEssays reveals that the H1N1 pandemic challenged the conventional ideal of antigenic shift, where a virus emerges from an existing subtype. The research suggests that pandemics can result from a shift within lineages of existing subtypes, not just the introduction of a new strain.

SourceWiley·JournalBioEssays·DateJan 12, 2011

Researchers show how 1 gene becomes 2 (with different functions)

A team of researchers has successfully demonstrated the molecular evolution of two competing functions from a single gene, AFP III, which helps Antarctic fish survive in frigid waters. The study confirms the ancestry of antifreeze proteins and validates a decades-old hypothesis about gene duplication.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalProceedings of the National Academy of Sciences·DateJan 12, 2011

Patients with high blood pressure respond better to combination therapy rather than single-drug therapy from the start of treatment (ACCELERATE study)

Patients with high blood pressure respond better to combination therapy from the start of treatment, with a mean reduction in systolic blood pressure of 6.5 mm Hg. After switching to combination therapy, patients who initially received monotherapy show improvement but not to the same extent as those on combination therapy from the start.

SourceThe Lancet_DELETED·JournalThe Lancet·DateJan 12, 2011

Sleep mode: The energy cost of sleep deprivation

A study by Colorado University's Sleep and Chronobiology Laboratory found that missing a night of sleep burns approximately 135 calories. Eight hours of sleep, on the other hand, saved the same amount of energy. The findings demonstrate a direct correlation between the sleep-wake cycle and energy expenditure.

SourceWiley·JournalThe Journal of Physiology·DateJan 12, 2011

Antibiotics best treatment for ear infections in toddlers, NIH grantees find

Researchers at the Children's Hospital of Pittsburgh found that antibiotics are more effective than a placebo in relieving symptoms of middle-ear infections in young children. The study, funded by the National Institute of Allergy and Infectious Diseases, involved 291 children between 6 and 23 months old with acute middle ear infections.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalNew England Journal of Medicine·DateJan 12, 2011

Intensity-modulated radiotherapy protects saliva function and improves quality of life for head and neck cancer patients compared with conventional radiotherapy (PARSPORT trial)

The PARSPORT trial found that intensity-modulated radiotherapy (IMRT) spares the major salivary glands, reducing xerostomia and improving quality of life in head and neck cancer patients. IMRT significantly reduces the incidence of dry mouth and leads to recovery of saliva secretion.

SourceThe Lancet_DELETED·JournalThe Lancet Oncology·DateJan 12, 2011

Pandemic H1N1 influenza vaccine effective in 2009-10 flu season

A European study funded by the ECDC and coordinated by EpiConcept found that one dose of the pandemic flu vaccine provided good protection against H1N1 influenza, particularly in people under 65 and those without chronic conditions. The authors suggest that future studies should focus on the new trivalent vaccine for the 2010-11 season.

SourcePLOS·JournalPLOS Medicine·DateJan 11, 2011