January 25, 2020 10:40 AMWASHINGTON (REUTERS) - Democratic lawmakers concluded their opening arguments in Republican President Donald Trump's impeachment trial in the US Senate on Friday (Jan 24) with a warning that he was a threat to democracy and would abuse his power again if he is not removed from office.
With their translucent bells, moon jellyfish (Aurelia aurita) move around the oceans in a very efficient way. Scientists have now used a mathematical model to investigate how these cnidarians manage to use their neural networks to control their locomotion even when they are injured. The results may also contribute to the optimization of underwater robots.
A guest post by Beth Burroughs, Montana State UniversityYou might have noticed a recent flurry of activity by mathematicians engaged in discussions about the teaching of mathematics. A few examples:The Common Vision project is a joint effort of five organizations in the mathematical sciences (AMATYC, AMS, ASA, MAA and SIAM) focused on modernizing undergradua […]