1,720,955 research outputs found
Plasma Atrial Natriuretic Peptide (proANP 31-67), B-type Natriuretic Peptide (Nt-proBNP) and endothelin (ET-1) concentrations in dogs with chronic degenerative valvular disease (CDVD).
No full textIn congestive heart failure neuroendocrine network activation is complex and is generally associated with worsening of hemodynamic status and severity of clinical findings. The aim of this research is to study Atrial Natriuretic Peptide (proANP), Brain Natriuretic Peptide (Nt-proBNP) and Endothelin-1 (ET-1) plasma concentrations in dogs affected by chronic degenerative valvular disease (CDVD) classified using the International Small Animal Cardiac Health Council functional scheme (ISACHC). CDVD was diagnosed in twenty-nine mixed, and pure breed, dogs on the basis of clinical examination, thoracic radiography, electrocardiography and echocardiography. Commercial enzyme-linked immunoassays validated for canine species were used to measure the neuroendocrine markers. Nt-proBNP and proANP levels increase in proportion to the severity of heart failure, although there was no statistical difference in the ANP plasma levels between ISACHC classes II and III. Significant difference in BNP plasma levels was observed among all the heart failure classes. Plasma ET-1 concentration increased in classes II and III compared to that of class Ib, but the increment was not progressive and no statistical differences were found between the different classes of heart failure considered. In conclusion, under our experimental conditions Nt-proBNP plasma levels were shown to be more useful than other cardiac biomarkers in assessing the severity of heart failure in dogs with CDVD, classified according to the ISACHC functional scheme
Marker biochimici del metabolismo osteo-minerale in bufale con turbe locomotorie croniche riferibili ad osteomalacia (“sciatica del bufalo”)
No full textNel presente studio sono state selezionate 34 bufale in asciutta di età compresa tra i 10 - 18 anni, di cui 24 affette da turbe locomotorie riferibili a osteomalacia cronica (cosiddetta sciatica del bufalo) e 10 bufale sane (gruppo di controllo). In questi animali sono stati determinati i seguenti parametri del turnover osteo-minerale: calcio, fosforo e magnesio totali, creatinina, urea, proteine totali, aspartato aminnotrasferasi, creatininfosfochinasi, fosfatasi alcalina, gamma glutamin transferasi, paratormone, calcitonina ed ostiolacina sierica. Gli animali ammalati hanno mostrato elevate concentrazioni di PHT e ALP nonché ridotti livelli di fosforo, calcio e ostiocalcina sierica se paragonati al gruppo di controllo
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
Valutazione del peptide natriuretico atriale (proANP31-67), del peptide natriuretico di tipo B (nt-proBNP) e dell'Endotelina (ET1)in cani affetti da malattia degenerativa cronica della valvola mitrale a diverso stadio clinico
No full textIl termine di marker biochimico di insufficienza cardiaca è impiegato per indicare alcune sostanze plasmatiche i cui livelli sono correlati con lo stadio clinico e la prognosi dei pazienti. L'ANP(peptide natriuretico Atriale), il BNP (peptide natriuretico cerebrale)e l'Et1 (endotelina 1) sono stati valutati in 29 cani affetti da patologia mitrale cronica, suddivisi secondo la classificazione ISACHC.I livelli plasmatici dei peptidi in esame aumentano progressivamente con l'aumentare della gravità dello scompenso cardiaco, ma l'analisi statistica dei dati rivela significatività soltanto per i valori di BNP in tutte le classi ISACHC. Questo dato suggerisce che il BNP, rispetto all'ANP e all'ET1 possiede maggiore accuratezza diagnostica nel caratterizzare i pazienti affetti da insufficienza cardiaca stratificati secondo la classificazione ISACH
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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