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Science News Archive April 2008 - Page 13


Page 13 of 22

With annual deaths from malaria on the rise: Scientists ask 'where is all the money going?'

A new study questions the effectiveness of $220 million in malaria prevention efforts, citing a surge in annual mortality rates among teens and adults. The researchers call for addressing environmental factors contributing to malaria growth and developing more efficient control programs.

SourceAmerican Society of Tropical Medicine and Hygiene·JournalAmerican Journal of Tropical Medicine and Hygiene·DateApr 11, 2008

Prices at the push of a button

A networked electronic display system allows store managers to quickly update prices on displays via a central computer, eliminating the need for physical price tag changes. The system uses small data packages transmitted between receivers and transmitters, ensuring fast and reliable price updates.

Macadamia nuts can be included in heart healthy diet

A recent study found that macadamia nut consumption as part of a heart-healthy diet reduced low-density cholesterol and triglyceride levels. The researchers used a controlled feeding study with participants who consumed either a standard American diet or a diet supplemented with macadamia nuts.

SourcePenn State·JournalJournal of Nutrition·DateApr 11, 2008

Cycling more intelligently

Researchers at Fraunhofer-Gesellschaft have developed intelligent bicycle pedals that track pedaling force and provide real-time feedback to cyclists. The integrated sensors and electronic components enable the system to optimize cycling performance and detect potential issues, such as material fatigue in aircraft parts.

Female vets face twice the fertility risk

Research reveals female vets exposed to x-rays, anaesthetic gases, and pesticides are twice as likely to miscarry during pregnancy. The study emphasizes the need for veterinarians to prioritize preventive measures and use protective devices at work.

SourceResearch Australia·JournalOccupational and Environmental Medicine·DateApr 10, 2008

Elastic stresses influence formation of leaf veins

A joint Argentinian-French study suggests that elastic stresses may play a crucial role in determining leaf venation patterns. By developing a numerical model, the researchers found simulated patterns with statistical properties similar to natural ones, challenging the existing view of auxin's role in vein formation.

SourcePLOS·JournalPLOS Computational Biology·DateApr 10, 2008

Wine may protect against dementia

A Swedish study found that women who consumed wine regularly had a lower risk of developing dementia compared to those who drank beer or liquor. The study, which followed 1,458 women over 34 years, suggests that moderate wine consumption may have protective effects against dementia.

SourceSwedish Research Council·JournalAmerican Journal of Epidemiology·DateApr 10, 2008

Attending religious services predictive of fidelity

A new study published in the Journal of Marriage and Family reveals that attending religious services is predictive of marital fidelity. The researchers found that prayer, faith, and other dimensions of religious life had no association with infidelity.

SourceWiley·JournalJournal of Marriage and Family·DateApr 10, 2008

Attraction at the atomic level

The study reveals that high-temperature superconductors do not rely on a 'glue' binding electrons, but instead utilize their strong repulsive forces to facilitate superconductivity. The researchers used specialized equipment to measure electron pairing mechanisms and found unique quantum properties at warmer temperatures.

Researchers find mass media campaigns useful

A study by University of Kentucky researchers found that targeted mass media campaigns can be successful alone in convincing young adults to adopt safer sex practices. The campaign effectively increased condom use and intentions to use condoms, resulting in a significant reduction in unprotected sex occasions.

Mental health cultivated on the farm

A randomized controlled trial found that spending time with farm animals improved patients' self-efficacy and coping ability, particularly those with schizophrenia and long-lasting psychiatric symptoms. The study suggests that farm animal-assisted therapy may be a beneficial treatment option for individuals with mental health conditions.

SourceBMC (BioMed Central)·JournalClinical Practice and Epidemiology in Mental Health·DateApr 10, 2008

Researchers classify Web searches

Researchers analyzed over 1.5 million queries to find that 80% are informational, while 10% are navigational or transactional in nature. An algorithm developed by Penn State researchers achieved a 74% accuracy rate in classifying these searches.

SourcePenn State·JournalInformation Processing & Management·DateApr 10, 2008

Sharing the road

During embryonic development, ephrin/Eph signaling helps regulate the growth of sensory and motor neurons. When this cross-talk is interrupted, motor neurons can mistakenly join sensory pathways, leading to a 'wiring disaster.' Researchers hope to use these findings to develop new treatments for spinal cord injuries

SourceSalk Institute·JournalScience·DateApr 10, 2008

Absence of clouds caused pre-human supergreenhouse periods

A team of Penn State paleoclimatologists found that a lack of cloud cover led to pre-human supergreenhouse periods during the Cetaceous and Eocene. By altering the Earth's albedo through changes in cloud cover, the researchers were able to recreate temperature regimes with mean annual temperatures above 100 degrees Fahrenheit.

SourcePenn State·JournalScience·DateApr 10, 2008

Flying off course

Researchers found that the probability of bird migration errors increases with species abundance in Asia, while body size has no effect. The scientists suspect an error in the genetic migratory programme as the cause, rather than weather or other factors.

SourceHelmholtz Association·JournalJournal of Ornithology·DateApr 10, 2008