منابع مشابه
Sir Joseph Ewart
By the death of Sir Joseph Ewart, the Epidemiological Society has lost one who, during two successive years, (1890-91 and 1891-92) occupied its Presidential Chair, as well as many other distinguished positions, both in this country and in India. He was born in 1831, and after studying at Guy's Hospital entered the Indian Medical Service in 1854. He served with the Maywar Bheel Corps during the ...
متن کاملGeoffrey Jefferson 1886-1961.
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متن کاملEnvelopment Thomas Eisenmann Geoffrey
Due to network effects and switching costs, platform providers often become entrenched. To dislodge them, entrants generally must offer revolutionary products. We explore a second path to platform leadership change that does not rely on Schumpeterian creative destruction: platform envelopment. By leveraging common components and shared user relationships, one platform provider can move into ano...
متن کاملGeoffrey Dutton's SDH 96 Paper
Planetary geocoding using polyhedral tessellations are a concise and elegant way to organize both local and global geospatial data that respects and documents locational accuracy. After a brief review of several such spatial referencing systems, topological, computational, and geometric properties of one of them are examined. The particular model described in the remainder of the paper – the oc...
متن کاملVincent Walsh
Vincent Walsh is Professor of Human Brain Research at University College London. He was a Royal Society University Research Fellow for 10 years and now leads the Visual Cognition Group in the Institute of Cognitive Neuroscience (ICN). His interests span visual perception, learning, time, space and number processing and synaesthesia. He engages widely in public communication projects and is a re...
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ژورنال
عنوان ژورنال: BMJ
سال: 2003
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.327.7410.346