A recently published paper strongly suggests men succumb to sexual temptations more than women — for example, cheating on a partner or stealing a girl from another guy — because they experience strong sexual impulses, not because they have weak self-control. At least when it comes to those of college age.

Previous papers have said that men are more likely than women to pursue romantic partners that are "off limits" but there has been no real theoretical explanation for this sex difference.

Chaotic terrains are enigmatic features stretching up to hundreds of kilometres across Mars. The mechanism by which they formed is hypothesis and even speculation in most cases.

A recent paper, which combines observations from satellite photos of the 280 kilometere wide and four kilometer deep crater plus models of the ice melting process and resulting catastrophic outflow, says that Aram Chaos, the lumpy, bumpy floor of an ancient impact crater on Mars, formed as a result of catastrophic melting and outflow of a buried ice lake. 

The solar system is crowded with small objects like asteroids and comets, and most have stable orbits which keep them out of harm’s way, but a small proportion of them are in orbits that risk collision with planets.

Smaller objects are more numerous and therefore result in more frequent collisions. The recent meteor seen over Chelyabinsk, Russia, in February 2013, was rare because the object was relatively large, around 17 meters across. However, the giant planet Jupiter is a much bigger target due to its tremendous gravitational attraction -- and it gets hit far more often than the Earth. The collisions are also much faster, happening at a minimum speed of 60 kilometers per second.

Working with cells in vitro and in mice, researchers have discovered that an antioxidant called ethoxyquin, a chemical commonly used as a dog food preservative, may prevent the kind of painful nerve damage found in the hands and feet of four out of five cancer patients taking the chemotherapy drug Taxol.

Ethoxyquin is a Food and Drug Administration-approved preservative and was shown in the new experiments to bind to certain cell proteins in a way that limits their exposure to the damaging effects of Taxol, the researchers say.

There are lots of ideas on how healthy habits transform into long-term lifestyle changes.

PhD candidate Marc Mitchell,writing in the American Journal of Preventive Medicine, suggests that receiving coupons and vouchers for as little as five dollars can help people stick to new fitness regimes. Under the guidance of Professors Jack Goodman and Guy Faulkner, Mitchell has completed a systematic review of research into the efficacy of financial incentives in inspiring lifestyle and health behavior change, specifically in people who've experienced cardiac problems. His analysis suggests that these small rewards increase the odds that patients will maintain an active lifestyle in the longer term.

Mayo Clinic researchers have shown that a specific protein pair may be a successful prognostic biomarker for identifying smoking-related lung cancers. The protein — ASCL1 — is associated with increased expression of the RET oncogene, a particular cancer-causing gene called RET. The findings appear in the online issue of the journal Oncogene.

"This is exciting because we've found what we believe to be a 'drugable target' here," says George Vasmatzis, Ph.D., a Mayo Clinic molecular medicine researcher and senior author on the study. "It's a clear biomarker for aggressive adenocarcinomas. These are the fast-growing cancer cells found in smokers' lungs."