The web site of The Johns Hopkins University, a world-class university in Baltimore, Maryland, offering undergraduate and graduate degrees.

Scientific Literature Digital Library incorporating autonomous citation indexing, awareness and tracking, citation context, related document retrieval...

DuPont is a science-based products and services company. Founded in 1802, DuPont puts science to work by creating sustainable solutions essential to a...

ChemSpider is a free chemical structure database providing fast access to over 26 million structures, properties and associated information.

Vimeo is a respectful community of creative people who are passionate about sharing the videos they make. We provide the best tools and highest qualit...