1,721,013 research outputs found
Struttura delle unghie nei Macrobiotidae e descrizione di Murrayon n. gen. (Eutardigrada).
No full textThe structure of the claws of the Macrobiotidae (Eutardigrada) has been critically reconsidered. On this basis a new genus, Murrayon, is erected
Ramazzottius semisculptus, nuova specie di Hypsibiidae (Eutardigrada).
No full textGli autori descrivono una nuova specie di Eutardigrada, Ramazzottius semisculptus, la cui cuticola presenta una scultura (costituita da tubercoli poligonali) appena visibile e limitata alla estremità caudale del corpo; talvolta essa è completamente liscia. Le uova sono deposte libere e sono provviste di piccole sporgenze coniche, lisce, con la base frastagliata
Proceedings of the Tenth International Symposium on Tardigrada
No full textThe Tenth International Symposium on Tardigrada took place in Catania, Italy from 18 to 23 June 2006. There were seventy-one participants at the Symposium, representing fourteen countries. The Symposium provided an unique opportunity both to review the progress in the tardigrade studies and to allow all delegates to meet and to discuss topics of common interest. The symposium included thirty-four lectures and thirty-one poster presentations on a wide variety of topics on tardigrade biology. Topics included systematics, morphological and molecular phylogeny, faunal studies, biogeography, ecology, survival strategies, and modern molecular methodologies in tardigrade research. The twenty-four papers appearing in the this special issue of the Journal of Limnology represent most of the contributors present in Catania. The Symposium offered an interesting Round Table on the systematic criteria of Tardigrada, and the opportunity to examine and to compare type materials from several tardigrade collections: Pilato and Binda’s collection, Bertolani’s collection and, thanks to the Museo Civico di Storia Naturale di Verona, Ramazzotti’s collection, Maucci’s collection and Biserov’s collection. Moreover, many tardigradologists have contributed bringing their material
Studio degli Isohypsibius del gruppo elegans (Eutardigrada, Hypsibiidae) con descrizione di due nuove specie.
No full textSome species of eutardigrades from moss and freshwater have been studied from a taxonomical point of view, using both qualitative and quantitative characters. They belong to a so called "Isohypsibius elegans" group. A new species is described and a subspecies has been moved to species rank
Macrobiotus joannae, primo Macrobiotidae ermafrodito (Eutardigrada).
No full textViene segnalato il primo caso di specie ermafrodita nella famiglia Macrobiotidae. Come negli altri casi accertati, anche macrobiotus joannae è provvisto di ovotestis. Oltre che nei Macrobiotidae, altre specie ermafrodite sono state riscontrate nella famiglia Hypsibiidae e, probabilmente, Amphibolidae (tutti Eutardigradi)
Introduction to the Proceedings
No full textThe Tenth International Symposium on Tardigrada took place in Catania, Italy from 18th to 23rd June 2006 and was held in the Auditorium of Benedettini, a fascinating historic building in Catania's downtown. There were seventy-one participants at the Symposium, representing fourteen countries. The Symposium provided a unique opportunity both to review the progress of tardigrade studies and to allow all delegates to meet and to discuss topics of common interest. The Symposium included thirty-four lectures and thirty-one poster presentations on a wide variety of topics in tardigrade biology. They included systematics, morphological and molecular phylogeny, faunal studies, biogeography, ecology, survival strategies, and modern molecular methodologies in tardigrade research. The twenty-four papers appearing in this special issue of the Journal of Limnology represent most of the contributors present in Catania
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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