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"What Publish or Perish is for Publish or Perish is designed to empower individual academics to present their case for research impact to its best advantage. We would be concerned if it would be used for academic staff evaluation purposes in a mechanistic way. When using Publish or Perish for citation analyses, we would like to suggest the following general rule of thumb: If an academic shows good citation metrics, it is very likely that he or she has made a significant impact on the field. However, the reverse is not necessarily true. If an academic shows weak citation metrics, this may be caused by a lack of impact on the field, but also by one or more of the following: Working in a small field (therefore generating fewer citations in total); Publishing in a language other than English (LOTE - effectively also restricting the citation field); Publishing mainly (in) books. Although Google Scholar performs better than the Web of Science in this respect, it is still not very good in capturing LOTE articles and citations, or citations in books or book chapters. As a result, citation metrics in the Social Sciences and even more so in the Humanities will always be underestimated as in these disciplines publications in LOTE and books/book chapters are more likely than in the Sciences. "

The preview of Joyce's new book. 

" Getting Schooled by Google Google Apps for Education is quickly gaining traction around the world. See the visual impact it's had. more "

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