There are more men in hard science and engineering and there are a variety of explanations for why, everything from the sexism notion, promoted by those in the social sciences, to the idea that the physical sciences and engineering don't seem directly related to helping people, which is an explanation offered by women who choose a life science or medicine. One odd notion, typified by prominent friend of Obama Dr. Larry Summers while he was at Harvard, was that women were not as good at math.

Sexual dysfunction in women can be linked to low resting heart rate variability, a finding that could help clinicians treat the condition, according to a study by psychologists from The University of Texas at Austin.

Heart rate variability (HRV) -- the variation in the time intervals between a person's consecutive heartbeats -- can indicate how well an individual responds to physiological and environmental changes. Low resting heart rate variability has been associated with several mental health conditions, such as depression, anxiety and alcohol dependence, as well as erectile dysfunction in men.

A telecommunications law academic in Australia has recommended for laws to be enacted criminalising the application of face recognition technology to visual images online that enable the identity of a person or people to be ascertained without their consent.

21 states have opted not to expand Medicaid under the Affordable Care Act (ACA), arguing that the expansion would be too expensive. And since California had to convince taxpayers with a state government mandate to remain revenue neutral on the program, based on promises by Democrats in Washington, D.C., and are looking at an $80 million deficit the moment Federal subsidies expire, it seems like those 21 states are right.

But economists at Northwestern University and Columbia University’s Mailman School of Public Health argue that  the cost to hospitals from uncompensated care in those states roughly equals the cost of Medicaid expansion.

The land planarian Platydemus manokwari, or New Guinea flatworm, is a highly invasive species, already reported in many territories in the Pacific area, and as well as in France. This is the only land planarian in the '100 worst invasive alien species' list and it has now been found in additional localities including islands in the Pacific area, Puerto Rico, the first record in the Caribbean, and the first report in mainland U.S., in Florida.

A rigorous analysis of more than 20,000 medical records concludes that erectile dysfunction drugs, such as Viagra, are not a cause of melanoma, an often deadly form of skin cancer, despite the higher risk for the disease among users of these drugs. 

The analysis, led by researchers at NYU Langone Medical Center and its Laura and Isaac Perlmutter Cancer Center, of medical records for some 20,235 mostly white men suggests instead that the likely source of the observed uptick in malignant melanoma risk among users of erectile dysfunction drugs is socioeconomic and lifestyle based.