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Current Trends, Spatio-Temporal Dynamics of Microplastics Research and Global Public Health: A Scientometric Study. [PDF]

open access: yesHealth Sci Rep
Alvitez J   +6 more
europepmc   +1 more source

ON THE UNITY OF BRADFORD'S LAW

Journal of Documentation, 1984
It is shown that there is no ambiguity in Bradford's theory of distribution. Starting with the two basic postulates laid down by Bradford, a mathematical expression is derived such that its curve agrees with the experimentally plotted data.
M. J. F. Maia, M. D. Maia
openaire   +1 more source

Rationales for Bradford's law

Scientometrics, 1984
Two models of the mechanism responsible for the distribution of scientific papers in an area over periodicals are given. Empirical distributions following Bradford's law are shown to agree quite closely with a lognormal distribution. This distribution arises, in one model, by taking the probability of a paper being published in a particular journal as ...
Karmeshu, N. C. Lind, V. Cano
openaire   +1 more source

Evaluation of the models for Bradford's law

Scientometrics, 1998
A goodness of fit test is conducted for two models for Bradford's law given byEgghe andSmolkov. The conclusion is that Smolkov's model is of comparatively higher accuracy. Finally the paper points out the necessity of carrying out statistical tests for comparisons more frequently for the new models of Bradford's law in the development of the law in ...
Chongde Wang, Zhe Wang
openaire   +1 more source

Bradford's law: An index approach

Scientometrics, 1987
A rigorous analysis of Bradford's law is made using an index for the observed values of the variables. Three important properties relating size and frequency are identified. Using this approach, the shape of Bradford-type curves can be described in terms of three distinct regions and two shape parameters.
Ye-Sho Chen, Ferdinand F. Leimkuhler
openaire   +1 more source

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