Q1: The top 25% of journals in a specific field, considered the most prestigious and influential.
Q2: Journals in the 25% to 50% range, still of high quality and with significant impact.
Q3: Journals in the 50% to 75% range, often specialized and valuable for specific research areas.
Q4: The bottom 25% of journals, which may still offer valuable publication opportunities, especially for niche research or emerging areas.
Tools enable users to look up and automatically calculate the impact indicators of the most important scientific journals:
JCR includes publications reviewed by the most widely-cited experts in the world and covers approximately 200 different disciplines. JCR can be accessed online via the Web Of Science platform (WOS) and can be used to run online searches and look up the Impact Factor of a given journal or a group of journals and make comparisons between these. The impact factor is calculated annually by the Institute for Scientific Information (ISI).
This is an essential tool for investigating the level of influence and impact that a journal has had on the international research community.
It does not measure the quality of an article but rather that of the journal in which the article was published.
Not every journal has a JCR impact factor and journals that do have one do not have this permanently.
The impact factor of a journal is updated every year and may vary from one year to another.
One single journal can be associated with several subject areas and it is likely that the journal will have a different level of impact within each of these subject areas.
The impact index of a journal title in any given year is a fixed index in JCR.
Each subject category of journals is divided into four quartiles: Q1, Q2, Q3, Q4. Q1 is occupied by the top 25% of journals in the list; Q2 is occupied by journals in the 25 to 50% group; Q3 is occupied by journals in the 50 to 75% group and Q4 is occupied by journals in the 75 to 100% group. The most prestigious journals within a subject area are those which occupy the first quartile, Q1.
There are two different versions: one for Science and the other for Social Sciences.
Coverage is provided from 1997 onwards. JCR is a paid-for tool which is funded by the FECYT (Spanish Foundation for Science and Technology) https://www.recursoscientificos.fecyt.es/
This ranking emerged as a free-of-charge alternative to JCR. It analyses publications indexed in the Scopus database which is provided by the publisher Elsevier, dating from 1997 to the present. SJR enables users to run online searches using the Scopus platform, which is a paid-for tool, or using the SCIMAGO Journal and Country Rank-SJR.
SJR does not measure the quality of an article but rather the quality of the journal in which the article is published.
Not every journal has an SJR impact factor and journals that do have one do not have this permanently.
The impact factor of a journal is updated every year and may vary from one year to another.
The tool enables users to look up the impact factor of a given journal or group of journals and to make comparisons between these.
One single journal can be associated with several subject areas and it is very likely that the journal will have a different level of impact within each of these subject areas.
The impact index of a journal title in any given year is not a fixed index in SJR and may vary.
SJR includes a greater number of journals than the JCR, making it less selective.
SJR is commonly used in science and social sciences. There are no separate versions for each subject area.
Each subject group of magazines is divided into four quartiles: Q1, Q2, Q3, Q4. Q1 is occupied by the top 25% of journals in the list; Q2 is occupied by journals in the 25 to 50% group; Q3 is occupied by journals in the 50 to 75% group and Q4 is occupied by journals in the 75 to 100% group. The most prestigious journals within a subject area are those occupying the first quartile, Q1.
Biomedical Signal Processing and Control: https://www.sciencedirect.com/journal/biomedical-signal-processing-and-control
Journal of Network and Systems Management: https://link.springer.com/journal/10922
Journal of the Egyptian National Cancer Institute: https://jenci.springeropen.com/
Computer Methods and Programs in Biomedicine Update: https://www.sciencedirect.com/journal/computer-methods-and-programs-in-biomedicine-update
International Journal of Computer Network and Information Security: https://www.mecs-press.org/ijcnis/
Engineering Letters:
https://www.scopus.com/sourceid/17800156701
https://www.engineeringletters.com/
Biomedical Engineering Letters:
https://www.scopus.com/sourceid/21100204919
https://link.springer.com/journal/13534
Applied Engineering Letters:
https://www.scopus.com/sourceid/21100981107