In the summer of 1997, I was asked by a leading Japanese newspaper what I thought was the most important thing that had happened in the twentieth century. I found this to be an unusually thought-provoking question, since so many things of gravity have happened over the last hundred years. The European empires, especially the British and French ones that had so dominated the nineteenth century, ...

fever had been registered in the Military Hospitals between the years 1823 and 1858. In the Civil Hospital for four years prior to 1866, (including all classes of the community,) only 85 cases of paludal fever had occurred j whereas in the same hospitals during the eighteen months ending June 1867, no less than 2,576 patients were under treatment suffering from intermittent fever ; and within t...

The recycling of oceanic lithosphere into the deep mantle at subduction zones is one most fundamental geodynamic processes on Earth. During closure an ocean, ancient slabs are thought to be consumed entirely in due their negative buoyancy. Yet, it recently suggested that small pieces could trapped along paleo-subduction zones. What remains far more enigmatic whether significant portions paleo-o...

Research shows that expert-crafted worked examples can have a positive effect on student performance. To investigate the potential for data-driven worked examples to achieve similar results, we generated worked examples for the Deep Thought logic tutor, and conducted an experiment to assess their impact on performance. Students who received data-driven worked examples were much more likely to c...

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