We performed a thorough comparison of four main indicators of journal influence, namely 2year impact factor, 5-year impact factor, eigenfactor and article influence. These indicators have been recently added by Thomson Reuters to the Journal Citation Reports, in both science and social science editions, and are thus available for study and comparison over a sample of significative size. We find...

We study the statistics of citations made to the indexed Science journals in the Journal Citation Reports during the period 2004-2013 using different measures. We consider different measures which quantify the impact of the journals. To our surprise, we find that the apparently uncorrelated measures, even when defined in an arbitrary manner, show strong correlations. This is checked over all th...

s 82.876 151.027 19.900 full texts 23.421 58.068 12.172 references 917.567 2.078.642 335.344 As a response to the CEES' "strategic move", SMS has decided to continue using SCIndeks data for evaluation purposes and to finance JBR after all. However, all journals are now required to pay the indexing fees, including some additional costs for options like the full-text availability, cited reference...

In this issue of CJEM, there is an updated version of the Instructions to Authors. Included with the update is the introduction of a new submission category: the Brief Educational Report. In a July 2010, editorial, there was a challenge to the Canadian emergency medicine (EM) community to share its education innovations. The challenge was to increase not only education research— the discovery o...

We show the impact of technology licensing on optimal patent policy. Strong patent protection that eliminates imitation may not be the equilibrium outcome in the presence of licensing. Depending on the cost of innovation, licensing may either increase or reduce the strength of the patent protection. We thank an anonymous referee for helpful comments and suggestions. The usual disclaimer applies...

We investigate the relationships between the citation impacts of scientific papers and the sources of funding which are acknowledged as having supported those publications. We examine several relationships potentially associated with funding including first citation, total citations and the chances of becoming highly cited. Furthermore, we explore evidence on the links between citations and typ...

Reader in Surgery, Luc know University. It is an undeniable fact that the abdominal diseases of the ileo-csecal region repeatedly claim the attention of the surgeon. The excuse for a short note on this subject is the great and possibly growing frequency of such diseases in the population around us at the present time. The following figures show the incidence of tuberculosis in the United Provin...

The two most used citation impact indicators in the assessment of scientific journals are, nowadays, the impact factor and the h-index. However, both indicators are not field normalized (vary heavily depending on the scientific category) which makes them incomparable between categories. Furthermore, the impact factor is not robust to the presence of articles with a large number of citations, wh...

nals and fields. Filipi N. Silva1, Francisco A. Rodrigues2, Osvaldo N. Oliveira Jr, Luciano da F. Costa1,3† There is an overall perception of increased interdisciplinarity in science, but this is difficult to confirm quantitatively owing to the lack of adequate methods to evaluate subjective phenomena. This is no different from the difficulties in establishing quantitative relationships in huma...