Culture

Astronomers have discovered that all galaxies rotate once every billion years, no matter how big they are.

The Earth spinning around on its axis once gives us the length of a day, and a complete orbit of the Earth around the Sun gives us a year.

"It's not Swiss watch precision," said Professor Gerhardt Meurer from the UWA node of the International Centre for Radio Astronomy Research (ICRAR).

Male moths have evolved intricate scale arrangements on their antennae to enhance detection of female sex pheromones, which allows them to keep their antennae small enough to maximise flying, new research suggests.

The work was led by researchers at the University of Melbourne with RMIT University, Walter and Eliza Hall Institute, Beijing Forestry University and is published today [EMBARGO 1100 14 March AEDT] in Proceedings of the Royal Society B.

An electronic consultation system designed to reduce excessive wait times for appointments with specialists experienced exponential growth during a recent five-year period. The Champlain BASE eConsult service was created to provide primary care clinicians in Ontario, Canada with a range of high quality and timely (up to one week) specialty input. Unlike electronic consultation systems that provide direct links between clinicians, this service enables primary care clinicians to search a directory, select a specialist, and contact her/him through a secure channel.

The rising prevalence of dental erosion and dentin hypersensitivity has led to the emergence of more and more toothpastes on the market that claim to treat these problems. While no such toothpaste existed 20 years ago, today, many brands with different attributes are being offered.

In a world first, Australian researchers have harnessed the power of diamonds in a breakthrough that could lead to radical improvements in the way human bodies accept biomedical implants.

Researchers from RMIT University have for the first time successfully coated 3D printed titanium implants with diamond.

The development is the first step toward 3D printed diamond implants for biomedical uses and orthopaedics -- surgical procedures involving the human musculoskeletal system.

Funding from California's special tax for mental health services has allowed Los Angeles County to reach the seriously mentally ill and those at risk for mental illness with services and prevention efforts, lowering both homelessness and the need for psychiatric hospitalizations, while improving employment and wellbeing, according to a new RAND Corporation study.

MINNEAPOLIS - Mar. 13, 2018 - Researchers from Children's Minnesota (Children's) and HealthPartners Institute have developed a new pediatric appendicitis risk calculator (pARC) to aid in the diagnosis of appendicitis. The calculator was developed as part of a $3.1 million, five-year grant from the National Institutes of Health (NIH).

RIVERSIDE, CA. - Here's a blind test taste like Pepsi never imagined.

Researchers at the University of California, Riverside, recently published a study of recycled wastewater that did not focus on its safety-which has long been established-but rather its taste.

After years of drought, the notion of drinking recycled wastewater has gained momentum in California. Thoughts turned to all the water being discarded--to supplementing "conventional" groundwater with recycled water.

Many women in science are raising concerns over the fact that parents with young children are often excluded from fully participating in academic conference activities.

Creating enough nanovesicles to inexpensively serve as a drug delivery system may be as simple as putting the cells through a sieve, according to an international team of researchers who used mouse autologous -- their own -- immune cells to create large amounts of fillable nanovesicles to deliver drugs to tumors in mice.

Nanovesicles are tiny sacs released by cells that carry chemical messages between cells. These nanovesicles are natural delivery vehicle and useful in drug delivery for cancer treatment.

DURHAM, N.C. -- Some animals are quick-change artists. Take the hogfish, a pointy-snouted reef fish that can go from pearly white to mottled brown to reddish in a matter of milliseconds as it adjusts to shifting conditions on the ocean floor.

Scientists have long suspected that animals with quick-changing colors don't just rely on their eyes to tune their appearance to their surroundings -- they also sense light with their skin. But exactly how "skin vision" works remains a mystery.

The odds of a 22-year absence of mass shootings in Australia since 1996 gun reforms being due to chance are one in 200,000, new research reveals.

Published today in the Annals of Internal Medicine, scholars at the University of Sydney and Macquarie University used mathematical techniques to test the null hypothesis that the rate of mass shootings in Australia before and after the 1996 law reforms is unchanged.

Scientists have just discovered why babies need to move in the womb to develop strong bones and joints. It turns out there are some key molecular interactions that are stimulated by movement and which guide the cells and tissues of the embryo to build a functionally robust yet malleable skeleton. If an embryo doesn't move, a vital signal may be lost or an inappropriate one delivered in error, which can lead to the development of brittle bones or abnormal joints.

ORLANDO (March 11, 2018) -- When patients who had a heart attack were given vouchers to cover their co-payments for medication to prevent a recurrence, physicians were more likely to prescribe a more effective, branded drug and patients were more likely to continue taking the medication for a full year as recommended in treatment guidelines, researchers reported at the American College of Cardiology's 67th Annual Scientific Session.

Researchers at the Intermountain Medical Center Heart Institute in Salt Lake City have found that incorporating underused, but available, imaging technologies more precisely predicts who's at risk for heart attacks and similar threats -- in time to prevent them.

For the study, researchers measured the level of calcium in the coronary arteries during stress testing using two common diagnostic tests -- positron emission tomography, or PET, and computed tomography, or CT -- to determine a patient's risk of heart disease.