1,726,122 research outputs found
Die Mechanik der Wärme : in gesammelten Schriften
No full textvon Robert Mayer ; herausgegeben von Jacob J. Weyrauc
The marriage record of Post, Jacob J. and Gwinn, Rosa
No full textMarriage license for Jacob J. Post and Rosa Gwinn. George J. Griffiths was the officiant
Experimentelle und klinische Untersuchungen ueber den Einfluss der Antipyretica auf die Zahl der rothen Blutkörperchen
No full textJacob J. FräfelBern, Med. Diss., 188
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
- …
