1,720,993 research outputs found
Ontogenesi e filogenesi del comportamento sociale del cane domestico (Canis lupus familiaris)
No full textL’intensa selezione artificiale del cane domestico (Canis familiaris) ha portato alla creazione di una straordinaria variabilità fra razze. Nonostante il cane domestico sia uno dei pet più popolari nella società occidentale, vi sono ancora pochi studi che hanno valutato il temperamento del cane con metodi scientifici e stilato dei profili di razza attendibili. Lo scopo di questa tesi è stato di mettere a punto e validare, due test di temperamento finalizzati a misurare e confrontare il grado di socialità di individui appartenenti a razze canine differenti. Il lavoro è stato suddiviso come segue:
1. Messa a punto e validazione di un test di temperamento per cuccioli di 2 mesi di età.
2. Osservazione del comportamento di cuccioli di 2 mesi e confronto fra razze
3. Confronto fra cuccioli di 2 e 4 mesi
4. Messa a punto e validazione di un test di temperamento per cani adulti
5. Osservazione del comportamento dei soggetti e confronto fra razze.
Le misure principali che sono state registrate sono: l’interesse ad interagire con una persona estranea e con gli stimoli proposti, il riferimento che i soggetti hanno nel padrone, la durata e l’intensità d’interazione con gli stimoli. Entrambe i test si sono rivelati utili per identificare differenze individuali, e di razza in ciascun gruppo di età. Dal confronto fatto per ciascuna razza, fra i tratti di temperamento emersi dall’osservazione dei cuccioli e da quella degli adulti, è risultato che alcuni tratti del temperamento, caratteristici di razza, emergono già in età precoce e sono quindi probabilmente sotto controllo genetico. Il confronto fra i cuccioli di 2 mesi e di 4 mesi ha permesso di valutare lo sviluppo ontogenetico del comportamento. Data l’alta variabilità esistente all’interno delle razze moderne, sarebbe opportuno in lavori futuri, poter aumentare il campione testando soggetti appartenenti a linee di sangue diverse, per valutare la ripercussione che questa variabilità genetica ha sul temperamento.The intense artificial selection of the domestic dog (Canis familiaris), has leaded to an extraordinary breed variability. Even though the dog is one of the most popular pet in Western society, still little research has been carried out to evaluate dogs’ temperament through scientific and standardized methods, and to obtain valid dog behavioral profiles. The purpose of this work was to create and validate two temperament tests adapt to measure and compare sociability levels of subjects of different breeds. This study was carried out following these steps:
1. Create and validate a temperament test for 2 month-old puppies;
2. Carry out behavioural observations of 2 month-old puppies, and compare breed differencies;
3. Compare the bahaviour of 2 and 4 month-old puppies;
4. Create and validate a temperament test for adult dogs;
5. Carry out behavioural observations of dogs, and compare breed differences;
Results were based on: dogs’ interest in interacting with an unfamiliar person and with novel stimuli, dogs’ proneness to interact with the owner, duration and intensity of dogs’ interaction with the stimuli. Both tests were found to be suitable tools to identify individual and breed differences, in both 2 months and adult dogs. From the comparison, within each breed, of 2 months and adult dogs’ behaviour, emerged that specific breed-typical traits appear at an early age, and are therefore under genetic control. The comparison between 2 and 4 month-old puppies allowed the evaluation of the ontogenetic development of behaviour. Since there is a high within-breed variability, future studies should analyse a bigger sample of dogs, testing subjects of different blood-lines, in order to evaluate the effect of this variability on temperament
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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