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CONCENTRAZIONE DI ALFA-TOCOFEROLO COME PARAMETRO DI QUALITÀ DELL'OLIO EXTRAVERGINE D'OLIVA
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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
Evaluation of the antioxidant activity of daphnetin in cell systems by fluorescent microscopy
No full textDeterminazione del contenuto lipidico ed acidi grassi di macroalghe marine raccolte in Sardegna
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The effect of ferric-nitrilotriacetic acid on the profile of polyunsaturated fatty acids in the kidney and liver of rats
No full textIntraperitoneal injection of the iron-complex, ferric-nitrilotriacetate (Fe-NTA), induces renal proximal tubular
damage associated with oxidative damage in vivo. Fe-NTA induced a time-dependent decrease of several polyunsaturated
fatty acids (PUFA), together with increased conjugated diene values and decreased cellular levels of
alpha-tocopherol and glutathione. At the time of maximum detectable oxidation (3 h), after the injection of a sublethal
dose of Fe-NTA there were clear reductions in the peak values over the controls for several fatty acids notably, 20:5
(eicosapentaenoic acid) (36%), 22:6 (docosahexanoic acid) (30%), 20:3 n6 (eicosatrienoic acid) (30%) and 20:4
(arachidonic acid) (28%) in the kidney. Fewer fatty acids showed a reduction in their residual values in the liver. 20:5
was reduced by 45% and for the 18:3 n3 and 18:3 n6, reductions of 35%, respectively. The profile of PUFAs is
sensitive to the oxidative damage due to Fe-NTA and this may find applications as oxidative biomarker model
STABILITÀ OSSIDATIVA DELL’OLIO EXTRAVERGINE D’OLIVA IN RELAZIONE AI COMPONENTI ANTIOSSIDANTI
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