The mysterious equilibrium of zombies – The Boston Globe

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After a thorough, if tongue-in-cheek, analysis, the authors found that the optimal method for halting such epidemics involves killing zombies early and often – the rare scientific paper that satisfies both the splatter-film aficionado and the Centers for Disease Control. Source: here

Mathematics ITP: Fractions

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he Fractions interactive teaching program (ITP) is an ICT-based tool to support the exploration of part numbers. Fractions ITP allows the child or teacher to represent and compare fractions on fraction strips. The displayed strips can be labelled as a vulgar fraction, a decimal (to three decimal places) or a percentage, and the ratio of yellow to green parts of … Read More

Empirical tags experiment

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Looks like Prof Chuck and his graduate student might be about to do an interesting experiment. “a study where we compare information retrieval times and errors when people are using 2 kinds of info organizations: traditional hierarchical/taxonomic categories versus tags. Between groups: We are thinking of having subjects come in and sort 100 photographs into categories or tag 100 pictures. … Read More