Why do we make sacrifices for our loved ones? Research tells us that our commitment is what motivates our willingness to sacrifice. Sacrifice, after all, is really about navigating a conflict of interest. We encounter these conflicts of interest when our own personal needs and goals are incompatible with those of our partner or our relationship overall (e.g., continuing to watch our favorite Netflix show vs. helping a partner prepare for a job interview). In order to sacrifice, we have to
A new paper creates a link between exposure to pesticide residues from fruits and vegetables and semen quality. Men who ate fruits and vegetables with higher levels of pesticide residues, like strawberries, spinach, and peppers, had lower sperm count and a lower percentage of normal sperm than those who ate produce with lower residue levels, according to the new paper.read more
Researchers have tested a range of neuroprosthetic devices, from wheelchairs to robots to advanced limbs, that work with their users to intelligently perform tasks.They work by decoding brain signals to determine the actions their users want to take, and then use advanced robotics to do the work of the spinal cord in orchestrating the movements. The use of shared control - new to neuroprostheses - "empowers users to perform complex tasks," says José del R. Millán, who presented
girl-museum:Today’s STEM Girl is Alexandra Bryant Morton. Alexandra helped create the first photo catalog of dolphins. She also fights to protect wild salmon populations from the impact of farm fishing. She maintains a blog at http://alexandramorton.typepad.com Our next exhibit, STEM Girls, has launched. Visit our exhibitions page to view it now!
Two widely used jewellery investment casting alloys (platinum with 5 wt% ruthenium (Pt-5Ru) and platinum with 5 wt% cobalt (Pt-5Co)) suffer from poor castability and other drawbacks. In this work thermodynamic calculations of alloy properties were employed to optimise the alloy compositions. Segregation behaviour appeared to be important for the melting range. Scheil simulations were used to simulate segregation under typical casting conditions. Based on these simulation results, small