SNIP measures contextual citation impact by weighting citations based on the total number of citations in a subject field.
SJR is a prestige metric based on the idea that not all citations are the same. SJR uses a similar algorithm as the Google page rank; it provides a quantitative and a qualitative measure of the journal’s impact.
The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years.
© Thomson Reuters Journal Citation Reports 2015
To calculate the five year Impact Factor, citations are counted in 2014 to the previous five years and divided by the source items published in the previous five years.
© Journal Citation Reports 2015, Published by Thomson Reuters
Peptides is an international journal presenting original contributions on the chemistry, biochemistry, neurochemistry, endocrinology, gastroenterology, physiology, and pharmacology of peptides, as well as their neurological, psychological and behavioral effects. Peptides emphasizes all aspects of peptide research and covers investigations of these proteins in plants, insects, lower vertebrates, animals and clinical studies in humans.
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US National Institutes of Health (NIH) voluntary posting ("Public Access") policy: Peptides and Elsevier facilitate the author's response to the NIH Public Access Policy. For more details please see the Guide for authors.
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Regulatory Peptides merged with Peptides in January 2015. The two journals now share a common aims and scope and a consolidated editorial board under the title Peptides.