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Science News for February 21, 2013


Floral signs go electric

Researchers at the University of Bristol discovered that flowers produce electric signals to attract pollinators like bumblebees. These signals can convey information about nectar and pollen reserves, improving flower-pollinator communication.

SourceUniversity of Bristol·JournalScience·DateFeb 21, 2013

Influenza study: Meet virus' new enemy

Scientists have discovered a new class of molecular compounds capable of killing the influenza virus. The compounds work by clogging up an enzyme that helps the virus spread, and are more effective because they are water-soluble. This breakthrough could buy scientists time to develop new vaccines for emerging strains of influenza.

SourceSimon Fraser University·JournalScience·DateFeb 21, 2013

'Stressed' bacteria become resistant to antibiotics

Research found that stressed bacteria can spontaneously develop resistance to rifampicin, a commonly used antibiotic. This discovery has significant implications for the evolution of antibiotic resistance and may impact treatment options for serious bacterial infections such as tuberculosis and leprosy.

SourceBMC (BioMed Central)·JournalBMC Evolutionary Biology·DateFeb 21, 2013

Solar energy to get boost from cutting-edge forecasts

Researchers at NCAR are creating a prototype system to forecast sunlight and resulting power every 15 minutes, enabling utilities to continuously anticipate available solar energy. The project aims to improve cloud prediction accuracy, helping utilities tap into solar energy more effectively and reducing dependence on fossil fuels.

Queen's study shows psychotropic drug dispensing increases on entry to care homes

A study by Queen's University Belfast found that psychotropic drug dispensing increases dramatically on entry to care homes, with antipsychotic use more than doubling from 8.2% to 18.6%. The high rate of psychotropic medication in care homes cannot be explained by continued community use, highlighting the need for routine medicines rev...

SourceQueen's University Belfast·JournalJournal of the American Geriatrics Society·DateFeb 21, 2013

Life's tiniest architects pinpointed by Yale researchers

A recent study published in Developmental Cell identifies piRNAs as the primary guides for epigenetic factors, controlling gene expression patterns in Drosophila. This breakthrough discovery has significant implications for understanding cancer development and may lead to new therapeutic opportunities.

SourceYale University·JournalDevelopmental Cell·DateFeb 21, 2013

IBN creates unlimited source of human kidney cells

IBN researchers successfully generated human kidney cells from human embryonic stem cells in vitro, providing a potentially unlimited source of cells for in vitro toxicology testing and regenerative medicine applications. The cells displayed similar gene and protein expression patterns to those isolated from fresh human kidney samples.

Inhaled betadine leads to rare complication

A rare case of lung inflammation caused by accidental inhalation of povidone-iodine (Betadine) during cleft palate surgery has led to new precautions for craniofacial surgeons. The patient, a seven-year-old girl, required mechanical ventilation after developing difficulty breathing and a drop in blood oxygen levels.

SourceWolters Kluwer Health·JournalJournal of Craniofacial Surgery·DateFeb 21, 2013

In rich and poor nations, giving makes people feel better than getting, research finds

A study published by the American Psychological Association found that spending on others provides a psychological reward, regardless of cultural or economic context. The researchers surveyed over 234,000 individuals across 136 countries and found a positive relationship between personal well-being and spending on others.

SourceAmerican Psychological Association·JournalJournal of Personality and Social Psychology·DateFeb 21, 2013

Wanted: A life outside the workplace

A new study at Michigan State University finds that single workers face challenges maintaining friendships, taking care of their health, and finding leisure time beyond work demands. This negative impact on work-life balance is similar for both single and family-based workers.

SourceMichigan State University·JournalJournal of Vocational Behavior·DateFeb 21, 2013

City layout key to predicting riots

Researchers at University College London have developed a computer model that highlights the importance of city layout in predicting and suppressing riots. The study uses data from the 2011 London riots to simulate patterns and identify susceptible areas, enabling police to deploy resources more effectively.

SourceUniversity College London·JournalScientific Reports·DateFeb 21, 2013

Titanium dioxide nanoreactor

Researchers at Helmholtz Centre Berlin have developed a method for producing titanium dioxide nanoparticles at room temperature in a polymer network. The analysis showed that the nanoparticles are homogeneously distributed over the polymeric nanoreactors and have a crystalline structure, enabling their use as catalysts.

SourceHelmholtz Association·JournalNano Letters·DateFeb 21, 2013

The age from when children can hop on one leg

Researchers at University of Zurich have developed normative data for gross and fine motor exercises in pre-school children. Children typically develop hopping and standing on one leg skills between three to five years old, with most able to perform these tasks by age five.

SourceUniversity of Zurich·JournalDevelopmental Medicine & Child Neurology·DateFeb 21, 2013

UCLA study finds endocrine disorder is most common cause of elevated calcium levels

A new UCLA study reveals that primary hyperparathyroidism is the leading cause of high blood-calcium levels, affecting mainly women and the elderly, particularly African American women over 50. The condition can lead to bone loss, depression, fatigue, and increased risk of osteoporosis and fractures.

SourceUniversity of California - Los Angeles Health Sciences·JournalThe Journal of Clinical Endocrinology & Metabolism·DateFeb 21, 2013

Geoengineering by coalition

A geoengineering coalition aims to reduce climate change by deflecting sun radiation, but new research suggests excluding non-participating countries may be counterproductive. Maintaining openness and inclusiveness in decision-making processes could be crucial for successful geoengineering efforts.

SourceCarnegie Institution for Science·JournalEnvironmental Research Letters·DateFeb 21, 2013

Schizophrenia genes increase chance of IQ loss

A recent study published in Biological Psychiatry reveals that individuals with a higher genetic risk of schizophrenia are more likely to experience a decline in IQ as they age. The research, conducted by the University of Edinburgh, used advanced genetic analysis techniques to investigate how thinking skills change over time.

SourceUniversity of Edinburgh·JournalBiological Psychiatry·DateFeb 21, 2013

When water speaks

Computer simulations reveal that water stabilizes specific charge states on the catalyst surface, increasing efficiency and outperforming a gas phase. Researchers also found that thermodynamic conditions can control catalytic efficiency by varying pressure and temperature.

SourceRuhr-University Bochum·JournalPhysical Review Letters·DateFeb 21, 2013

Conserving corals by understanding their genes

A study published in BioMed Central's open access journal BMC Genetics found that coral DNA variations correlate with water temperature and clarity, which can inform reef conservation efforts. The research team identified specific genes involved in immune response and stress-induced cell-death, suggesting that corals with certain genet...

SourceBMC (BioMed Central)·JournalBMC Genetics·DateFeb 21, 2013