1,721,001 research outputs found
Proprietà in Soluzione di Nuovi Derivati Policarbossilici del Polisaccaride Scleroglucano
No full textXanthan and Glucomannan Mixtures : Synergistic Interactions and Gelation
No full textThe synergistic interaction between xanthan and glucomannan in solution and in the gel phase has been studied by circular dichroism spectroscopy and differential scanning calorimetry. The study in solution of the polysaccharidic mixture indicates a preferred stoichiometry of the interaction corresponding to a weight fraction of xanthan around 0.55. This finding is in reasonable agreement with the differential scanning calorimetry measurements carried out on the gel phase. Models from conformational analysis based on these results were formulated in terms of 1:1 and 2:1 Konjac glucomannan/xanthan molecular assemblies. The experimental and calculation results clearly indicate the involvement of the side chains of xanthan and suggest that the ordered portions of the macromolecular complex in solution act in the gel phase as junction zones
Interazioni in Soluzioni Acquose di Polisaccaridi Ionici: i carragenani e destransolfati
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ON THE OPTICAL-ACTIVITY OF PSEUDOISOCYANINE BOUND BY SULFATED POLYSACCHARIDES IN DILUTE AQUEOUS-SOLUTION
No full textCalorimetric Studies on Conformational Transitions of New Polyelectrolytes Derived from the Polysaccharide Scleroglucan
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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
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