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In a previous post we began looking at some of the metrics featured in Library Connect’s Quick Reference Cards for Research Impact Metrics and sharing how they relate to Scopus. The first post covered SCImago Journal Rank (SJR). Continuing on with the journal metrics theme, in this post we discuss Source Normalized Impact per Paper (SNIP).

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SNIP was created by Professor Henk Moed at the Centre for Science and Technology Studies (CTWS), University of Leiden. It measures contextual citation impact by weighting citations based on the total number of citations in a subject field, using Scopus data.

Or, as stated by the CTWS, “SNIP corrects for differences in citation practices between scientific fields, thereby allowing for more accurate between-field comparisons of citation impact.” (http://www.journalindicators.com/)

As shared in the quick reference card displayed, SNIP is derived

August 1st is World Lung Cancer Day and in recognition of the research leading the way to understanding, educating, treating and eventually curing one of the most common types of cancer, we take a look at Scopus to see what content we can find (click on the images to expand).  

A basic search in Scopus for “Lung Cancer” returns close to 176,000 results dating from 1921 to 2016.

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To better understand our results, we clicked on <Analyze search results>. This opens an interactive way of delving further into our results, for example, looking at the <Documents by year> tab shows a steady growth in publications over the past 50 years, and a greater spike in the last 15 years.

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Switching over to the <Affiliation> tab, we can also see that the University of Texas M. D. Anderson Cancer Center and the National Cancer Institute, have the most output relating to our search.