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Science News Archive November 2013


Page 1 of 30

The more the better!

Researchers from Bielefeld University and TU Braunschweig found that female fire salamanders can store sperm from multiple males, leading to increased offspring numbers and fitness. Polyandry appears to be a key mechanism for reproductive success in this species, contradicting the long-held assumption of monogamy.

SourceBielefeld University·JournalMolecular Ecology·DateNov 29, 2013

Strong dollar means cross-border shopping heavily influenced by exchange rate

A new study from University of Toronto researchers found that a strong dollar significantly influences Canadian cross-border shopping habits, with distance to the border also playing a crucial role. The research suggests that Canadians are more likely to shop in the US due to the favorable exchange rate and proximity to the border.

SourceUniversity of Toronto·JournalThe Review of Economics and Statistics·DateNov 29, 2013

Using moving cars to measure rainfall

The project utilizes GPS-equipped cars with varying wiper systems to measure rainfall intensity, offering a promising alternative to traditional rain gauges. By analyzing sensor readings, researchers can create a more extensive network of measurement points, leading to improved flood prediction and prevention.

SourceEuropean Geosciences Union·JournalHydrology and Earth System Sciences·DateNov 28, 2013

Quantitative approaches provide new perspective on development of antibiotic resistance

Researchers at UC San Diego used quantitative models and microfluidic devices to study bacterial growth and evolution of drug resistance. They found that the expression of resistance genes depends on the bacterial colony's growth status and the effectiveness of the resistance mechanism. The interaction between drug and resistance is co...

Researchers pinpoint superbug resistance protein

A study led by the University of Leeds has identified a resistance protein in bacteria that allows them to survive chlorhexidine, an antiseptic commonly used in hospitals. The discovery is critical for developing new chemicals to combat superbugs, which pose a catastrophic threat to the medical system.

SourceUniversity of Leeds·JournalProceedings of the National Academy of Sciences·DateNov 28, 2013

Follow your gut down the aisle, new study says

A new study found that newlyweds' gut-level negative evaluations of their partners predict future marital happiness. The study, led by Florida State University researcher James K. McNulty, involved 135 heterosexual couples and found that conscious attitudes did not always reflect automatic feelings about the marriage.

SourceFlorida State University·JournalScience·DateNov 28, 2013

Crossing continents -- where we drive affects how we drive

A study by University of Nottingham researchers found that Malaysian drivers are less likely to identify situations as dangerous and react to them later than British drivers. The study suggests that hazard perception tests may need to be adapted for developing countries where road safety is a primary concern.

SourceUniversity of Nottingham·JournalTransportation Research Part F Traffic Psychology and Behaviour·DateNov 28, 2013

Junk food and poor oral health increase risk of premature heart disease

A recent study highlights the association between poor oral health and increased risk of cardiovascular disease, particularly among those consuming high amounts of sugar in junk foods. Experts recommend reducing fizzy drink intake and improving oral hygiene to prevent heart problems later in life.

SourceSAGE·JournalJournal of the Royal Society of Medicine·DateNov 28, 2013

Lakes discovered beneath Greenland ice sheet

Researchers have identified two subglacial lakes beneath the Greenland Ice Sheet, which could influence global sea level rise and the future of the ice sheet. The lakes are part of an open system connected to the surface, unlike isolated Antarctic lakes, and their existence has significant implications for understanding ice flow speeds.

SourceUniversity of Cambridge·JournalGeophysical Research Letters·DateNov 27, 2013

Penn study shows automated prediction alert helps identify patients at risk for 30-day readmission

A Penn Medicine study found that an automated prediction tool can accurately identify patients at risk of being readmitted within 30 days of discharge. The tool, developed by researchers, uses prior hospital admissions as a key predictor, and has been shown to reduce readmissions by 31% compared to those without the flag.

SourceUniversity of Pennsylvania School of Medicine·JournalJournal of Hospital Medicine·DateNov 27, 2013

Pills of the future: Nanoparticles

Researchers have developed nanoparticles that can be delivered orally and absorbed through the digestive tract, allowing patients to take a pill instead of receiving injections. The particles are coated with antibodies that act as a key to unlock receptors found on cells lining the intestine.

SourceMassachusetts Institute of Technology·JournalScience Translational Medicine·DateNov 27, 2013