305,223 research outputs found

    I papi nella storia, a cura di Pio Paschini e di Vincenzo Monachino

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    Poupard Paul. I papi nella storia, a cura di Pio Paschini e di Vincenzo Monachino. In: Revue d'histoire de l'Église de France, tome 48, n°145, 1962. pp. 110-112

    The middle-southern Adriatic basin in February 1999: the chemical and physical characteristics of the water column.

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    In the Southern Adriatic depression nitrogen and phosphorous salts are concentrated in the bottom water. The Redfield ratio, same 29, is higher at Pomo and D transect, mostly on the bottom, because phosphorous is limiting and nitrogen is abundant. Northern waters influence this southern area, together with surface and intermediate waters coming from Ionian sea, and western shelf waters which tend to sink to the bottom. Key-words: Adriatic Sea, thermohaline characteristics, nutrient salts, Redfield rati

    Distribution of abundance, biomass, production and productivity of macrozoobenthos in the sub-Antarctic Magellan Province (South America)

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    Distribution of abundance, biomass, productivity and production of macrozoobenthos was investigated in four study areas in the Magellan region (South Patagonian Ice-Field, Strait of Magellan, Beagle Channel, Continental Shelf). Using a Reineck box corer and a multibox corer, a total of 277 quantitative benthos samples were taken at 78 stations in water depths between 8 and 1139 m during the Joint Chilean-German-Italian Magellan "Victor-Hensen Campaign" in 1994, the "Polarstern" expedition ANT XIII/4 in 1996 and the Chilean expeditions "Cimar Fiordo II + III" in 1996 and 1997, respectively, on board RV "Vidal Gormaz". Mean abundance in the South Patagonian Ice-Field was significantly lower than in the Strait of Magellan and the Beagle Channel. Biomass and abundance decreased clearly with depth (20-300 m to 700-1500 m: 3.9 gC mm2 to 0.6 gC mm2; 2832 ind. mm2 to 569 ind. mm2). Average abundance, biomass and production of the whole Magellan region are lower (2318 ind. mm2, 3.2 gC mm2, 0.62 gC mm2 yearm1) than in the high Antarctic Weddell Sea. In the Magellan region, macrozoobenthos composition of abundance is mainly dominated by polychaetes (56%), followed by arthropods (16%), echinoderms (10%) and molluscs (11%). Comparisons of our present results with those of high Antarctic areas make it clear that the Magellan region has a transitional character

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    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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