As an introduction to the special issue on “emerging nanotechnologies”, this paper puts in perspective contemporary debates and challenges about nanotechnology. It presents an overview of diverse analyses and expectations about this presumably revolutionary set of technological, scientific...

Human capital and social networks are the two pillars supporting scientists' and engineers' ability to contribute knowledge. Throughout their careers, scientists seek to enhance both. Human capital endowments include not only formal education and its representation in credentials but the actual...