منابع مشابه
Prices of IUCr journals.
The subscription rates as from 1 January 2016 are given in Table 1. There will be a 5% discount on the prices of the individual sections for subscribers taking out any of the combined subscriptions. The reduced-rate (personal) subscriptions are ordinarily only available to members of recognized scientific societies, and applications must be accompanied by a written undertaking that the journal ...
متن کاملSelection of Core Dental Journals using Citation Analysis of Scientific Journals in the Field of Dentistry
Objective: Citation analysis is a bibliometric method used for the calculation of the mean number of citations and detection of highly cited references, frequency distribution of citations in different languages, update rate, efficacy of resources and number of core journals of a scientific domain. This process elucidates the information needs of researchers in a specific realm of science and...
متن کاملScientific Achievements of Medical Journals in Occupational Accidents
Background: Occupational accidents are the second cause of occupational fatality in Iran and are among the major health, social, and economic risk factors. Since the publication of scientific articles in the field of occupational accidents reflects the concern of researchers to this important issue, the present study aimed to evaluate the scientific achievements in the field of occupational acc...
متن کاملHierarchical networks of scientific journals
Scientific journals are the repositories of the gradually accumulating knowledge of mankind about the world surrounding us. Just as our knowledge is organised into classes ranging from major disciplines, subjects and fields to increasingly specific topics, journals can also be categorised into groups using various metrics. In addition to the set of topics characteristic for a journal, they can ...
متن کاملMeasuring contextual citation impact of scientific journals
This paper explores a new indicator of journal citation impact, denoted as source normalized impact per paper (SNIP). It measures a journal’s contextual citation impact, taking into account characteristics of its properly defined subject field, especially the frequency at which authors cite other papers in their reference lists, the rapidity of maturing of citation impact, and the extent to whi...
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ژورنال
عنوان ژورنال: Nature
سال: 1974
ISSN: 0028-0836,1476-4687
DOI: 10.1038/248470b0