Professor's debut book tracks down China's 'missing girls'

When University of Kansas professor John James Kennedy began working in rural China, he would get introduced to villagers with multiple children—despite the country's strict one-child policy.

* This article was originally published here

Short-term use of opioids increases subjective pleasure

The human opioid system contributes to the regulation of emotions, pleasure and pain. Opioids are strong analgesics. In addition to effectively relieving pain, external opioids may improve mood and reduce negative emotions. However, not much has been known about the effect of opioids on emotional responses caused by external stimuli.

* This article was originally published here

Engineered bacteria could be missing link in energy storage

One of the big issues with sustainable energy systems is how to store electricity that's generated from wind, solar and waves. At present, no existing technology provides large-scale storage and energy retrieval for sustainable energy at a low financial and environmental cost.

* This article was originally published here