1,720,973 research outputs found
Trans Epidermal Water Loss in gatti sani ed affetti da malattia dermatologica allergica
No full textNel cane con dermatite atopica diversi studi hanno dimostrato alterazioni strutturali della barriera cutanea che possono favorire il passaggio degli antigeni, la sensibilizzazione nei loro confronti e lo sviluppo di una reazione allergica. Nel cane e nell’uomo la misurazione della trans epidermal water loss (TEWL, perdita di acqua transepidermica) è un metodo validato rapido, semplice e non invasivo, per valutare l’integrità della barriera cutanea: i valori aumentano proporzionalmente al danno epidermico. In questo studio si è voluta valutare la TEWL in gatti affetti da NFNFIHD (Non-Flea Non-Food Induced Hypersensitivity Dermatitis: dermatite da ipersensibilità non causata dalle pulci né dall’alimento) (gruppo A) e confrontarla con quella di gatti sani (gruppo B), per valutarne eventuali differenze. Le misurazioni sono state ripetute per 5 volte all’interno del padiglione sinistro. Tutti i dati sono stati sottoposti ad analisi statistica con SPSS 17 usando il test di Kruskal-Wallis per campioni indipendenti. Un valore di P <0.05 è stato considerato statisticamente significativo. Sono stati selezionati 39 gatti affetti NFNFIHD e 39 sani. Si è osservata una differenza statisticamente significativa nei valori di TEWL fra i due gruppi, mentre non si sono osservate differenze per età, sesso o razza. La misurazione della TEWL può essere utile per la valutazione dell’integrità della barriera cutanea nel gatto, con possibili impieghi nel monitoraggio della terapia delle malattie allergiche feline.In atopic dogs several studies have demonstrated structural alterations of the epidermal barrier, which may favour allergen penetration, sensitization and development of an allergic reaction. In dogs and humans measurement of the trans epidermal water loss (TEWL) is a validated, rapid, simple and non-invasive way to evaluate the integrity of the epidermal barrier: values increase proportionally to the epidermal damage. The aim of this study was to evaluate TEWL values in cats with NFNFIHD (Non-Flea, Non-Food Induced Hypersensitivity Dermatitis) (group A) and compare them to those of healthy cats (group B). Measurements were repeated 5 times, from the inner left pinna. All data were analysed with SPSS 17 using the Kruskal-Wallis test for independent samples. A p value <0.05 was considered significane Thirty-nine affected and 39 normal cats were included in the study. There was a statistically significant difference in TEWL values between the affected and the healthy cats, while no difference was observed for age, breed or sex. TEWL measurement may be a useful means for the evaluation of the epidermal barrier integrity in cats, with possible use in the monitoring of treatment of feline allergic skin diseases
Analisi di una casistica specialistica dermatologica nel nord Italia : 1188 casi (1995-2002)
No full textMacroscopic, cytological and bacteriological evaluation of anal sac content in normal dogs and in dogs with selected dermatological diseases
No full textMacroscopic and cytological aspects of anal sac content were evaluated in 40 normal dogs and 10 dogs each with pyoderma, Malassezia dermatitis associated with atopic dermatitis and uncomplicated atopic dermatitis. Bacteria isolated from anal sacs were compared with those from abdominal skin and hair in 20 normal dogs and 10 dogs with pyoderma. There was no difference between the groups in anal sac dimension, or in the colour, consistency or presence of granules in their content. Extracellular bacteria were found in higher numbers in diseased animals, whereas intracellular bacteria were observed in 40% of dogs with pyoderma and in only 2.5% of normal dogs. Malassezia spp. were present in 15.7% of dogs, with no difference between groups. Neutrophils were observed in 12.5% of normal dogs, 30% of dogs with Malassezia dermatitis with underlying atopic dermatitis and in 70 and 80% of dogs with pyoderma and uncomplicated atopic dermatitis, respectively. Seven bacterial species were isolated from anal sacs, with no difference between normal dogs and dogs with pyoderma. In five normal animals and in four dogs with pyoderma the same bacterial strains were isolated from anal sacs and from abdominal skin and hai
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
Variations on the Author
Full text link“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
Full text linkWe 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
Full text linkWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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