1,721,020 research outputs found
Bemerkungen über den Zusammenhang des Dentatus-Kerns mit der Unteren Olive in 11 Fällen von Jakob-Creutzfeldtscher Erkrankung.
Ipertrofia olivare bilaterale e leucoencefalopatia multifocale progressiva:descrizione anatomo-clinica di un caso.
Neuronal loss in the ba¬sal nucleus of Meynert in progressive supranuclear palsy.
A morphometric study of the basal nucleus of Meynert (bnM) has been performed in
a 70-year-old man with a 4-year history of pathologically confirmed progressive
supranuclear palsy (PSP). An important neuronal loss (52%) was demonstrated in
the bnM. This finding has not been previously documented with morphometric
methods in PSP, but the involvement of the bnM is well known in other related
conditions, i.e., Parkinson's disease, Alzheimer's disease, and
Parkinson-dementia complex of Guam. Our findings yield support to the view that
the involvement of the bnM, a nucleus with complex connections with various
subcortical structures and diffuse cholinergic projections on the neocortex,
could play an important role in the physiopatholog of subcortical dementia
Going Beyond Counting First Authors in Author Co-citation Analysis
The 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
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