Abstract: The paper considers the Cauchy problem and boundary value problems for multicomponent cross-diffusion systems, since studying the global solvability of the Cauchy problem and boundary value ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

Mia Martin Hobbs does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

If you want to get people’s attention to address a problem, making it seem as big as possible is a nearly universal reflex. Across more than a dozen experiments, they find that describing how big a ...

“The Problem With People” starts with a montage of the many wars and conflicts happening in the world right now. A dying Irish man, Fergus (Des Keough) bemoans this crushing violence affecting ...

Traveling recently on the London Tube and on the city’s double-decker buses, I wondered, as I have many times before, why New York City can’t have a comparable public transit system: safe, clean ...

According to memes and social media posts, U.S. Vice President Kamala Harris is rumored to have once opined about dealing with problems, problems and more problems. The purported quote reads, "The ...

Alex Nurse does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

The origins of “Houston, we have a problem” rest with the nearly catastrophic Apollo 13 mission in 1970. For decades since, the phrase has been used to signify a downturn for all manner of misfortune: ...

The three-body problem is a physics conundrum that has boggled scientists since Isaac Newton's day. But what is it, why is it so hard to solve and is the sci-fi series of the same name really possible ...

Many school districts and policymakers are stepping up efforts to teach students the skills they need to be prepared for the jobs of the future. One big area of focus is STEM. Jobs in science, ...