1,720,984 research outputs found

    Trattamento dell'iperfosforemia: il target terapeutico nella Chronic Kidney Disease

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    Hyperphosphatemia has a key role in the progression of kidney disease. It leads to secondary hyperparathyroidism and affects erythropoiesis in patients with CKD. In human medicine, high serum phosphorus levels are significantly associated with vascular calcification and increase of morbidity and mortality. Hence, oral phosphate binders become fundamental therapeutic aids. Among them, a free calcium and alluminum molecula, lanthanum carbonate, has been recently introduced also in veterinary medicine

    Prevalence of proteinuria in cats affected with chronic kidney disease

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    Persistent renal proteinuria is considered an early marker of chronic kidney disease (CKD) and it is listed among the initiation factors and progression factors according to KDOQI guidelines. Nevertheless, few data are available about the prevalence of proteinuria in cats affected with CKD, in which it is assumed that nephropathy is mainly characterized by tubulointerstitial damage. The aim of this study is to determine the prevalence of proteinuria in cats affected with CKD and to valuate the relations between urine protein to creatinine ratio (UPC) or IRIS substaging by proteinuria, towards purebred, sex, age, haematology, biochemistry and urinalysis. Wilcoxon test, linear regression and chi-square test were used for the statistical analysis. Data from 251 cats were considered. Non-renal proteinuria was an exclusion criterion

    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

    Variations on the Author

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    “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

    Urinary tract Infections in dogs and cats: urine culture versus urinalysis

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    Urinary tract infections (UTIs) are a big challenge in clinical practice because of the variability of symptoms and laboratory findings. The aim of this retrospective study was to evaluate: a) the relations between urine culture results and urinalysis parameters; b) the results of the antimicrobial susceptibility tests. Urine samples were collected by cystocentesis from 252 dogs and 52 cats, whose diagnostic workup included a differential diagnosis of UTI: all samples underwent a complete urinalysis, UPC ratio assessment and urine culture

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We 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
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