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SPECTROSCOPIC EVALUATION OF INTERACTIONS AMONG TRACE-ELEMENTS AND BIOGENIC CARBONATES IN THE MARINE-ENVIRONMENT
No full textTHE SPECIATION OF TRACE AMOUNTS OF ORGANOMETALLICS IN MARINE ORGANISMS BY GEL-PERMEATION HIGH-PRESSURE LIQUID-CHROMATOGRAPHY WITH PAR DERIVATIZATION
No full textApplication of the EULA model in Chile on the Biobìo river basin - Gulf of Arauco- San Vicente Bay Italian-Chilean Interuniversity Cooperation Project. November1989-April 1993. SYNTHESIS
No full textDistribution and transport of particulate Fe and Cu in suspended matter of the Canyons of Genoa (northwestern Mediterranean).
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Monitoring of heavy metals and butyltin compounds in coastal waters of Ligurian Sea: Results of a mussel watch project
No full textFrom December 1994 up to October 1995 a 'Mussel Watch Project' was carried out to assess the quality of water of the Ligurian Sea and to identify the possible sources of heavy metal pollution. Several metals and organotin compounds were measured in mussels (Mytilus galloprovincialis, Lam) transplanted in different months from a marine farm to eight sites of the Ligurian coast. Spatial differences and temporal trends in tissue concentrations of Zn, Cu, Ni, Cr, Fe, Al, V, Cd and Mn were evaluated. Concentrations resulted in the same range as those obtained in a previous Mussel Watch Project carried out in the same area. In general, areas of known pollution display high concentrations of these metals, but also some areas not greatly influenced by human activities showed high concentrations of some metals. Data from this study show little evidence of any overall seasonal pattern except for Cu, Zn and V, concentrations of which were a function not only of sampling site, but also of reproductive cycle. Organotin compounds show differences in terms of both concentration and speciation between the investigated sites
The determination of heavy metals in the Ligurian sea. I. The distribution of Cu, Co, Ni, Cd in surface waters
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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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