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We describe how and why Magnetic Resource Imaging (MRI) came to complement – and partially replace -- computed tomography (CT) imaging of soft tissue. Specifically we chronicle: 1) the development of foundational techniques and prototypes (through the 1970s); 2) initial commercialization and...
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Many countries, especially in Europe, have ambitious goals to transform their national energy systems towards renewable energies. Technological change in both renewable production and efficient use of energy can help to make these targets come true. Using a panel of German firms linked to the...
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closed economy from an endogenous growth model that endogenizes invention, innovation and diffusion of knowledge that is … various growth experiences of the U.S. over the last 40 years. Innovation is modeled as diffusing skill-biased knowledge … percentage of high-skilled workers in the innovative sector resulting in what I call the specialization in innovation effect …
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