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These checks describe how Advances in Chemical Physics's record is put together. Each one states what it measured and where the line was drawn, so a verdict can be argued with. They are not combined into a single score, and a check marked Watch or Concern is a reason to look closer, not a finding of misconduct.
Citation integrity No data
No dataSelf-citation share of 2-year impactnot available
How much of the 2-year impact comes from the journal citing itself. Both figures use the same denominator, so this is the exact share, not an estimate.
No dataSelf-citation share of 3-year impactnot available
The same measure over a three-year citation window.
No dataSelf-citation share of 5-year impactnot available
The same measure over a five-year citation window.
No dataSelf-citation share of 10-year impactnot available
Over ten years a journal's own back catalogue is its most available source of citations, so a higher share here is normal.
No dataJournal self-citation ratenot available
The share of all citations received that came from articles in this same journal, across the whole record rather than one impact window.
No dataAuthor self-citation ratenot available
The share of citations whose citing paper shares an author with the paper it cites. Papers with more than 100 authors are excluded from both sides, because a large collaboration shares an author with almost everything it cites.
No dataSelf-citation trendnot available
Whether the journal self-citation rate has been rising or falling over the last five years.
Publication record No data
No dataRetraction notices per 1,000 articlesnot available
Retraction notices published by this journal, against its peer-reviewed output. Some retractions are a sign of a journal correcting the record; a high rate is a sign of what got in.
Trajectory No data
No data2-year impact trendnot available
Direction of the 2-year impact over the last five available years.
No data5-year impact trendnot available
Direction of the 5-year impact over the last five available years.
No dataScore D trendnot available
Direction of Score D, the prestige-weighted citation ratio, over the last five available years.
No dataScore D tiernot available
Where the journal's latest Score D places it among all journals ranked that year. Tier 1 is the top 5%, Tier 2 the top quarter, Tier 3 the top half, Tier 4 the top three quarters.
Output and reach OK
No dataPublication speednot available
Median days from submission to publication over the last three years, from the dates the publisher states on the article.
No dataUncited sharenot available
The share of the journal's peer-reviewed articles that have never been cited. Across the whole database the median journal sits near 56%, because most journals are small, specialised or recent, so this is flagged only against the corpus: above 85% is the worst quarter and above 96% the worst tenth.
No dataOutput volume trendnot available
Whether the number of articles published per year has been growing or shrinking. A sudden multiplication of output is worth understanding before submitting.
No dataUnusual increase in country participationnot available
Number of recent top-ten countries passing both the field-reference and historical-increase screens. Country coverage and the reference ranges are shown below.
No dataSubject breadthnot available
How many disciplines the journal is classified under. A very wide scope is normal for a megajournal and unusual for a specialist title.
OKNational quality levelLevel 1
The journal's level under the national research-assessment classification. Level 1 is the base listing; level 2 is considered high quality within its field and level 3 the most selective tier. Only about 2% of listed journals reach level 2 or 3. — level 1, the base listing rather than a quality tier
No dataOpen-access sharenot available
The share of the journal's peer-reviewed articles published under an open licence, out of those whose licence could be read from the article itself. Articles with no licence statement are left out of both sides rather than counted as closed, so a journal with thin coverage shows a figure over a small denominator, not a low one.
No dataData available to downloadnot available
The share of peer-reviewed articles, reviews excluded, whose underlying data can be downloaded rather than only requested. Counted from the article's own data-availability statement and the data files deposited with it.
Author-country reference
Author-country data is not available for this journal.