1,720,978 research outputs found
Applicazione di una nuova tecnica per il trattamento delle fratture radio-ulnari nei rapaci
Full text linkTraumatology is a very important part of avian medicine, specially for raptor where the ability to fly is a life threatening condition. The aims of actual methods of wings fracture treatment in this species is to achieve a perfect bone rotational and longitudinal alignment and also to maintain a normal bone length to permits a functional return to fly. The actual methods of radius and ulna fractures consist on application of a IM pins in tie-in configuration with a external fixators, but for the weight of the means of fixation there are real risk of implant failure. The technique used in this study is performed by the anatomical connection between the rachis of the secondary remiges and the periostium of the bone, to give more stability and minor weight to the implant. 15 raptors of different size were treated by this method and 13 of them have shown a fibrous callus formation before 15 day and they were able to fly 65 days from surgical reduction of the fracture. This method have revealed cheaper and more simply to do if compared with other utilized to treat analogue fracture.La traumatologia è una branca molto importante della medicina aviare, specialmente nei rapaci per i quali il volo è una condizione essenziale alla sopravvivenza. Gli attuali metodi di trattamento delle fratture delle ali in queste specie hanno l’obiettivo di ottenere un buon allineamento longitudinale e rotazionale dell’arto, nonché di mantenere la lunghezza del segmento osseo per garantire il ritorno al volo. Le attuali tecniche di riduzione delle fratture del radio e dell’ulna prevedono l’uso di fissatori esterni in configurazione tie-in con un chiodo centromidollare, ma per il peso eccessivo dei mezzi di stabilizzazione delle frattura e della barra di connessione vi sono rischi concreti di cedimento dell’impianto. La tecnica oggetto del presente studio sfrutta la naturale connessione anatomica tra periostio e calamo delle remiganti secondarie per fornire maggiore stabilità e minore peso dell’impianto. Nel presente studio sono stati trattati in totale 15 soggetti con frattura di radio ed ulna e clinicamente sani, 13 dei quali hanno dimostrato la formazione di un callo fibroso entro il 15 giorni dall’intervento e il ritorno al volo entro i 65 giorni dall’intervento. Non solo questa tecnica si è rivelata meno dispendiosa e più semplice da applicare, ma anche più efficace delle tecniche sinora presentate in letteratura
Turtles with Roles: an application of an Object Oriented Pattern in JxLogo
No full textJxLogo is an undergraduate student project developed at Padua University and entirely realized in Java. It adds an object oriented extension to the Logo language and it integrates in the environment an effective graphical interface and useful tools. The introduction of this extension makes it arise some general questions about its educational motivations, as pointed out in the introduction. Then the paper discusses how the object oriented component can effectively support Logo users of different ages in learning complex concepts. The power of the proposed approach is showed through the introduction of the Role abstraction as a form of dynamic inheritance, in contrast with the traditional static inheritance based on derivation between classes. Such an abstraction is introduced through the known Role Object Pattern: two implementations of this pattern are presented, one that uses the JxLogo language constructs, and another based on the TurtleRole class that is provided at low level. Both levels of implementation permit to add transitory behaviours and attributes to the Turtle basic class. Other relevant elements of the environment are also presented, specifically how events are currently supported. Finally some didactic motivations try to answer to the questions aforementioned and to justify the introduction of advanced programming issues as accessible learning options
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
Clinical pathological findings in an owl (Athene noctua) with microfilaremia in Italy
No full textWe report the first case of microfilaria infection in a free-flying owl Athene noctua in Italy. A macroparasite, about 10.1-mm long, was observed in the right chamber of the heart. On microscopic examination microfilariae were seen in liver, kidney, myocardium and lungs, although no cellular reaction was present in association with the parasites in any of these tissues. Because of the low pathogenicity of this parasite, infection with microfilaria may be not harmful in wild owls
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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