1,720,961 research outputs found
Characterization and quantitative analyses of the essential oils of several populations of Sardinian Helichrysum italicum (Roth) G. Don subsp. microphyllum (Willd.) Nyman
No full textPreliminary analysis of essential oil from Sardinian Helichrysm italicum G. Dom subspecies microphyllum
No full text
Variabilità dell'olio essenziale diHelichrysum italicum(Roth) G. Don
Full text linkPer lo studio dell'olio essenziale diHelichrysum italicum, sono state prese in considerazione varie
stazioni diE. italicum(Roth) G. Don subsp.microphyllum(Willd.) Nyman vegetante
allo stato spontaneo sia nel Nord che nel Sud della Sardegna. Le analisi sono state
condotte via Gas-massa e ci hanno permesso di identificare 69 costituenti per un totale
compreso tra il 92.9% ed il 99.9% dei costituenti totali
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
- …
