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Diagnostic observations on the sow urinary tract infections (UTI) = Osservazioni diagnostiche sulle infezioni urinarie (UTI) della scrofa
No full textThe urinary infections of sows (UTI) still represent a controversial matter of study. Some authors consider this problem poorly disturbing the farm profitability while many European experts, especially in France, attribute to UTI a substantial impact on the productivity of the pig production. Therefore a reliable diagnostic protocol has been defined to establish the real incidence of the problem in the Italian swine system and to understand the UTI interference on the breeding productivity. This paper referred to a study performed during the years 2009-2010, and absolutely represents the first investigation on UTI in Italy. The available data indicate that, likewise in other geographical areas, the urinary infections are a present and they are potentially interfering on the productivity of sows
Diagnostic observations on the sow urinary tract infections (UTI) = Osservazioni diagnostiche sulle patologie urinarie (UTI) della scrofa
No full textLe infezioni urinarie delle scrofe (UTI) in alcune realtà sono ritenute poco interferenti sulla redditività delle aziende, mentre diversi esperti europei attribuiscono loro un impatto consistente sulla produttività e sui profitti del settore suinicolo e alcuni Paesi, come la Francia, hanno focalizzato la propria attenzione su tutti gli aspetti che possono favorire l’insorgenza di tali disordini.
Sulla base dei dati fino ad oggi disponibili è nata quindi l’esigenza di stabilire la reale incidenza della problematica nelle scrofe allevate in modo intensivo nel nostro Paese; è stato quindi definito un protocollo diagnostico affidabile, facilmente
applicabile, che ha permesso l’analisi di un gran numero di soggetti con costi sostenibili (anche nelle contingenze economiche attuali). Questo lavoro svolto nel biennio 2009-2010 rappresenta, in assoluto, la prima indagine di questa natura condotta nel sistema suinicolo italiano; i dati per ora disponibili indicano che le infezioni urinarie sono un problema presente e potenzialmente interferente sulla produttività della scrofa.The urinary infections of sows (UTI) still represent a controversial matter of study. Some authors consider this problem poorly disturbing the farm profitability while many European experts, especially in France, attribute to UTI a substantial impact on the productivity of the pig production. Therefore a reliable diagnostic protocol has been defined to establish the real incidence of the problem in the Italian swine system and to understand the UTI interference on the breeding productivity. This paper referred to a study performed during the years 2009-2010, and absolutely represents the first investigation on UTI in Italy. The available data indicate that, likewise in other geographical areas, the urinary infections are a present and they are potentially interfering on the productivity of sows
Caratterizzazione genotipica e sensibilità agli antibiotici degli isolamenti di Escherichia coli da infezioni urinarie (UTI) delle scrofe
No full textI ceppi di E. coli isolati da UTI delle scrofe sono stati analizzati in PCR per l’identificazione di diversi fattori di virulenza e del gruppo filogenetico di appartenenza. La
maggior parte dei ceppi è stata positiva per le fimbrie tipo 1 e per l’aerobactina. Gli isolamenti
differiscono da quelli dell’uomo per il profilo di adesione e per l’emolisina: le fimbrie tipo
P e tipo S, così come l’emolisina, sono meno frequenti nei ceppi suini che, a differenza di
quelli umani sono, per lo più, classificati nei gruppi filogenetici A e B1. Di tutti gli isolamenti
è stata verificata l’antibiotico-sensibilità nei confronti dei principi attivi più frequentemente
utilizzati per la terapia delle UTI nelle scrofe.Porcine E. coli strains have been analyzed by PCR for the presence of several
virulence factors and identified with regard to placement in the phylogenetic groups. The
majority of the tested strains harboured type 1 fimbriae and aerobactin. The strains were quite
different from human uropathogenic ones about the adhesion profile and haemolysin, since P
and S fimbriae were significantly lower in porcine strains as was haemolysin. Differences with
human strains were also observed related to phylogenetic groups, since our strains belonged
to E. coli clonal groups A and B1. All isolates were tested for sensitivity to antibiotics most
frequently used in the treatment of UTI in sows
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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