This paper discusses „citations‟ and „references‟ within the microblogging service Twitter with the aim to provide measures for scientific communication on this platform. It provides definitions for different types of citations on Twitter and discusses general difficulties in accessing scientific tweets. Furthermore, two different datasets that represent scientific usage of Twitter have been an...

Introduction. We present a new bibliometric indicator to measure journal specialisation over time, named the focus factor. This new indicator is based on bibliographic coupling and counts the percentage of re-citations given in subsequent years. Method. The applicability of the new indicator is demonstrated on a selection of general science journals and on a selection of medical journals. The r...

Recently we proposed a model in which when a scientist writes a manuscript, he picks up several random papers, cites them and also copies a fraction of their references (cond-mat/0305150). The model was stimulated by our discovery that a majority of scientific citations are copied from the lists of references used in other papers (cond-mat/0212043). It accounted quantitatively for several prope...

Accurate computation of h indices or other indicators of research impact requires access to databases supplying complete and accurate citation information. The Web of Science (WoS) database is widely used for this purpose and it is generally deemed error-free. This note describes an inaccuracy that seems to affect differentially non-English sources and targets in WoS, namely, “phantom citations...

Multidisciplinary cooperation is now common in research since social issues inevitably involve multiple disciplines. In articles, reference information, especially citation content, an important representation of communication among different Analyzing the distribution characteristics references from disciplines articles basic to detecting sources referred information and identifying contributi...

This article was updated to add references 31 and 32 respective in text citations.

The ozone layer acts like a shield in safeguarding the Earth by preventing the harmful ultraviolet radiations from entering into the atmosphere. Reported damage to the ozone layer in 1985 was a significant milestone in Antarctic science research. The research work played a significant role in generating international socio-political debate on this great environmental crisis. This article aims t...