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
The Journal of the Association of Nurses in AIDS Care (JANAC) is a peer-reviewed, international nursing journal that covers the full spectrum of the global HIV epidemic, focusing on prevention, evidence-based care management, interprofessional clinical care, research, advocacy, policy, education, social determinants of health, epidemiology, and program development. JANAC functions according to the highest standards of ethical publishing practices and offers innovative publication options, including open access and preproduction manuscript posting, where the journal can post accepted manuscripts within 7 days.
JANAC is included in Index Medicus, MEDLINE, CINAHL, Social Sciences Citation Index, and the Science Citation Index Expanded. JANAC is also included in the following abstracting services: Scopus, MEDLINE/PubMed, EBSCO, Expanded Science Citation Index, IBZ (International Bibliography of Periodical Literature on the Humanities and Social Sciences), International Nursing Index, and PsychINFO.