The study on which this article reports investigated the internationalisation of higher education studies by examining collaborations in the form of international co-authorships. We analyse how network-based mechanisms, related to structural relationship between authors (preferential attachment, i.e., higher tendency to collaborate among the most…

The U.S. R&D enterprise relies on businesses, federal and nonfederal governments, higher education institutions, and other nonprofit organizations. This report identifies trends in R&D performance and funding and compares them to those of the world's other major economies. The U.S. annual total of R&D has expanded steadily since 2010…

Citizen science, in which volunteers work with professional scientists to conduct research, is expanding due to large online datasets. To plan projects, it is important to understand volunteers' motivations for participating. This paper analyzes results from an online survey of nearly 11000 volunteers in Galaxy Zoo, an astronomy citizen science…