Alzheimer's disease research: scientific productivity and impact of the top 100 investigators in the field. Sorensen, Aaron A J Alzheimers Dis 16 (3) : 451-65 2009 Mar

[Eugene Garfield]

URL: http://iospress.metapress.com/content/v932x18k23300844/fulltext.pdf

Email Address:sorensen at collexis.com

PubMed ID: 19221406 

Publication Type: Journal Article 

Title: Alzheimer's disease research: scientific productivity and impact of 
the top 100 investigators in the field. 

Author(s): Sorensen, Aaron A 

Source: J Alzheimers Dis 16 (3) : 451-65 2009 Mar  

Language: English 

Abstract: The online availability of scientific-literature databases and 
natural-language-processing (NLP) algorithms has enabled large-scale 
bibliometric studies within the field of scientometrics. Using NLP 
techniques and Thomson ISI reports, an initial analysis of the role of 
Alzheimer's disease (AD) within the neurosciences as well as a summary of 
the various research foci within the AD scientific community are 
presented. Citation analyses and productivity filters are applied to post-
1984, AD-specific subsets of the PubMed and Thomson ISI Web-of-Science 
literature bases to algorithmically identify a pool of the top AD 
researchers. From the initial pool of AD investigators, top-100 rankings 
are compiled to assess productivity and impact. One of the impact and 
productivity metrics employed is an AD-specific H-index. Within the AD-
specific H-index ranking, there are many cases of multiple AD 
investigators with similar or identical H-indices. In order to facilitate 
differentiation among investigators with equal or near-equal H indices, 
two derivatives of the H-index are proposed: the Second-Tier H-index and 
the Scientific Following H-index. Winners of two prestigious AD-research 
awards are highlighted, membership to the Institute of Medicine of the US 
National Academy of Sciences is acknowledged, and an analysis of highly-
productive, high-impact, AD-research collaborations is presented.  

Address: Collexis Holdings, Inc., Life Science Solutions Leader, Europe, 
Via Bramantino 1, 6600 Locarno, Switzerland. 

Citation Subset: Index Medicus 

ISSN: 1387-2877 

NLM Unique ID: 9814863 

Country: Netherlands 

Date Created: 12 Mar 2009