Psychologically, women may not like much competition, according to a female psychologist, and that may account for inequality in academia and the work force.

If that is true, though, why is psychology 70 percent women? There is just as much competition, it just isn't men. It may be that because psychology has a smaller monetary reward, women feel more communal than competitive, according to Dr. Kathrin Hanek, the study's lead author. 

EAST LANSING, Mich. - A rare, severe form of pulmonary hypertension, which up until now, has only been classified as a human lung disease, has also been discovered in dogs according to a Michigan State University study.

"Our research is the first to document the existence of pulmonary veno-occlusive disease, or PVOD, in dogs," said Kurt Williams, the lead author of the study and an expert in respiratory pathology in MSU's College of Veterinary Medicine. "PVOD is considered one of the most severe forms of pulmonary hypertension."

The study is published in the journal Veterinary Pathology.

A diabetes medication described in some studies as an effective treatment for nonalcoholic fatty liver disease (NAFLD) works no better than a placebo, report researchers at University of California San Diego School of Medicine, after conducting the first randomized, double-blind, controlled clinical trial of sitagliptin, an oral antihyperglycemic marketed by Merck & Co. under the name Januvia.

In experiments involving a simulation of the human esophagus and stomach, researchers at MIT, the University of Sheffield, and the Tokyo Institute of Technology have demonstrated a tiny origami robot that can unfold itself from a swallowed capsule and, steered by external magnetic fields, crawl across the stomach wall to remove a swallowed button battery or patch a wound.

The new work, which the researchers are presenting this week at the International Conference on Robotics and Automation, builds on a long sequence of papers on origami robots from the research group of Daniela Rus, the Andrew and Erna Viterbi Professor in MIT's Department of Electrical Engineering and Computer Science.

Eyewitnesses remember the faces of black suspects less accurately in drive-by shootings than they do in serial killings.

Their memories are further skewed when the victims are women or white males, psychology researchers at UBC's Okanagan campus have found.

"What this study shows is that the memory of an eyewitness is heavily influenced by the type of crime that was committed," says Prof. Paul Davies. "In crimes such as drive-by shootings, typically associated with black males, eyewitnesses overwhelmingly remembered the black suspect's face incorrectly.

"In crimes that were are more typically 'white', witnesses remembered the black suspect's faces with a high degree of accuracy."

Wide variations can be seen in how far citizens from different countries evade tax. While this can be attributed to how well institutions deter tax avoidance through audits and fines, cultural differences may also play a part.