SJR Scimago Journal & Country Rank
Est modus in rebus (There is a proper measure in things). Horatio.
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Sleep

Country: United States

Subject Area: Biochemistry, Genetics and Molecular Biology

Subject Category: Physiology

Publisher: American Academy of Sleep Medicine. Publication type: Journals. ISSN: 01618105

Coverage: 1978-2013

H Index: 121

Scope:

SLEEP is the official publication of the Associated Professional Sleep Societies, LLC (APSS) a joint venture of the American Academy [...]

SJR indicator vs. Cites per Doc (2y)

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The SJR indicator measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is. Cites per Doc. (2y) measures the scientific impact of an average article published in the journal, it is computed using the same formula that journal impact factor ™ (Thomson Reuters).

Citation vs. Self-Citation

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Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.

Cites per Document vs. External Cites per Document

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Evolution of the number of total cites per document and external cites per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years.

Cites per Document in 2, 3 and 4 years windows

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Evolution of Citations per Document to a journal's published documents during the two, three and four previous years. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

International Collaboration

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International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country.

Journal's Citable vs. Non Citable Documents

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Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows.

Journal's Cited vs. Uncited Documents

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Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Indicators19992000200120022003200420052006200720082009201020112012
SJR1,0561,1571,1321,0410,9561,1721,3661,7411,6791,8372,0172,1451,9392,066
Total Documents13014695102159216226208201200202225238229
Total Docs. (3years)432371367371343356477601650635609603627665
Total References4.1104.6503.2943.6974.3188.2067.7177.6637.3247.1827.9688.5198.5478.449
Total Cites (3years)9961.1061.1421.2491.0041.3291.8622.5662.6212.7003.1203.2733.1123.172
Self Cites (3years)1101358911690235237289276223285289289244
Citable Docs. (3years)403336332339322317400454487491507507502520
Cites / Doc. (4years)2,473,243,713,623,914,024,625,505,485,746,296,556,546,53
Cites / Doc. (3years)2,473,293,443,683,124,194,665,655,385,506,156,466,206,10
Cites / Doc. (2years)2,322,803,432,712,944,204,645,464,925,145,865,895,815,60
References / Doc.31,6231,8534,6736,2527,1637,9934,1536,8436,4435,9139,4537,8635,9136,90
Cited Docs.297264261283265291376452492480511509522553
Uncited Docs.1351071068878651011491581559894105112
% International Collaboration4,622,050,000,9813,8419,4414,6023,0819,9026,0023,7623,1126,8924,02


Scimago Lab, Copyright 2007-2014. Data Source: Scopus®