1,721,058 research outputs found

    Residui nel miele

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    Nel capitolo viene descritta l'origine e la tipologia di sostanze che possono accumularsi ne miele e rappresentare un pericolo per la sicurezza del consumatore

    Miele buono e nutriente! Seguiamolo dal fiore... al vasetto

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    Nettare e melata sono i prodotti di base che le api raccolgono per elaborare il miele, nutrimento dell’alveare che l’uomo ha saputo trarre anche per sé dal lavoro instancabile di questi Imenotteri. Ci sono tanti mieli diversi, tutti unici

    Ceruminous otitis in native chicken breeders belonging to Robusta Lionata breed

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    At the beginning of 2005, an outbreak of ceruminous otitis has been observed in a breeders flock belonging to the Robusta Lionata breed, a native chicken breed reared in a Centre for the valorisation and conservation of native poultry breeds. The disease caused a high morbidity rate (90% of birds), whereas the mortality affected only 10% of the birds. The death of the birds was preceded by clinical signs, such as worsening of the ceruminous otitis with abundant secretion of bad-smelling cerumen, lack of appetite and depression. The otitis externa, mainly bilateral, was the only evident finding at necropsy. Laboratory examinations showed only the presence of Mycoplasma synoviae, either by isolation on culture media or by PCR, on ear and choana samples. Aspergillus fumigatus was detected only in one bird. In this paper, the Authors report for the first time on an outbreak of ceruminous otitis in native chicken breeds and point out that the only pathogenic agent isolated from the birds has been Mycoplasma synoviae

    Preliminary investigation on other Nitidulidae beetles species occurring on rotten fruit in Reggio Calabria province (South-western Italy) infested with small hive beetle (Aethina tumida)

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    Preliminary investigation on other Nitidulidae beetles species occurring on rotten fruit in Reggio Calabria province (south-western Italy) infested with small hive beetle (Aethina tumida) have been carried ou

    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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