1,721,119 research outputs found
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
Untersuchung zum Einfluss der Farbe der Ambientebeleuchtung eines Veranstaltungsortes auf die emotionale Wahrnehmung der Musik
No full textCrossmodale Korrespondenzen zwischen auditiven und visuellen Stimuli lassen sich bereits in zahlreichen Laborstudien erkennen. Ob jene Korrespondenzen auch in der Praxis für das Lichtdesign von unter anderem Musik-Veranstaltungen gelten und dabei nicht nur auditive Stimuli mit Farben assoziiert werden, sondern Farben auch einen Einfluss auf die Wahrnehmung der akustischen Eigenschaften und Emotionen der Musik haben, wird dabei in dieser Studie untersucht. Der Versuchsaufbau findet dafür in einer realen Veranstaltungsstätte statt. Proband*innen mussten Fragen zu ihrer Wahrnehmung von unterschiedlichen auditiven und visuellen Eigenschaften, die in unterschiedlichen, möglichst Veranstaltungs-realistischen Stimuli-Szenen präsentiert wurden, beantworten. Hierfür wurden Scheinwerfer eingesetzt sowie auditive Stimuli gewählt, die vom Musikgenre den Live-Veranstaltungen der Veranstaltungsstätte entsprechen. Die Ergebnisse zeigen, dass ein Zusammenhang zwischen akustischen Eigenschaften und Farben existiert und auch die wahrgenommenen Emotionen der Farben durch die Musik beeinflusst werden können. Ebenso zeigen die Ergebnisse, dass die Farben der Ambientebeleuchtung die Emotionen zwar nicht explizit vorgeben oder steuern, sie aber in ihrem Ausdruck intensivieren können. Der Zusammenhang von zur Musik passenden Farben scheint dabei auf den geteilten wahrgenommenen Emotionen zu basieren, eine direkte Verknüpfung von Musik und Farben kann in dieser Studie allerdings nicht ausgeschlossen werden. Crossmodale Korrespondenzen zwischen auditiven und visuellen Stimuli sind demnach auch in realitätsnahen Versuchsaufbauten zu finden. Die Erkenntnisse darüber könnten auch in der Praxis, zum Beispiel bei der Planung und Durchführung von Musik-Veranstaltungen, einen Nutzen haben
Music Streaming Adaption – Drivers of Behavioral Intention
No full textMusic consumption and distribution has changed drastically in the last twenty years due to digitalization. Instead of buying music products, like CDs or even downloaded digital music files, today music is predominantly distributed via online music streaming. Therefore, it is mandatory for the music industry as well as researchers to determine which factors are affecting consumers intention to use music streaming services. This study aims to investigate drivers of Behavioral Intention (BI) to use a music streaming service. Particularly, aspects of social preferences in the context of music streaming will be explored. Therefore, a research model is created, based on the Value-based Adoption Model (VAM) (Kim et al., 2007) with an extension to take social factors into account. An online questionnaire with 102 participants was conducted to test the research model and the corresponding hypotheses. In order to evaluate reliable indications, some adjustments needed to be made resulting in a corrected research model. The final independent variables of the corrected model are Perceived Value (PV) (which is composed of Perceived Usefulness (PU) and Perceived Enjoyment (PE)), Perceived Ease of Use (PEU), Perceived Price Value (PPV), Facilitating Conditions (FC), Perceived Fairness (PF), Social Connectivity (SC), and Peer-Effects (PFX). The empirical results show that Perceived Value (PV), Perceived Price Value (PPV), and Perceived Fairness (PF) are determinants of consumers Behavioral Intention (BI) to use a music streaming service
Die Amplitudenmodulation musikalischer Signale als musikalisches Ausdrucksmittel und ihr Zusammenhang mit psychophysiologischem Arousal
No full textGegenstand des Forschungsprojektes bilden amplitudenmodulierte musikalische Signale in der Funktion von musikalischen Ausdrucksmitteln. Im Rahmen einer experimentellen Studie werden Vorkommen und Ausprägung musikalischer Amplitudenmodulationsvorgänge im Zusammenhang mit dem Arousal der Versuchspersonen untersucht, einem Zustand erhöhter psychophysiologischer Aktivierung, der auf eine Erhöhung der Leistungs- und Reaktionsbereitschaft des Organismus abzielt. Als Stimulusmaterial dienen vokale und synthetische musikalische Phrasen, denen Amplitudenmodulationen in verschiedenen Ausprägungsstufen aufgeprägt sind. Neben peripher-physiologischen und subjektiven Arousal-Indikatoren werden über Selbstberichte weitere Dimensionen des emotionalen Zustands des Rezipienten registriert. Amplitudenmodulierte vokale Signale bewirken im Vergleich zu unmodulierten, ansonsten aber weitestgehend identischen Signalen einen Anstieg der aus elektrodermaler Aktivität abgeleiteten Arousal-Indikatoren. Amplitudenmodulierte vokale und synthetische Signale gehen mit einer höheren subjektiven Arousal- sowie
einer geringeren Valenzbewertung einher. Sie stellen sich als erregende, aversive Reize dar, die eine Erhöhung der Aktivität des sympathischen Nervensystems nach sich ziehen. Diese Befunde werden vor dem Hintergrund einer „Warn- und Aversionssignaltheorie“ der Amplitudenmodulation interpretiert, der zufolge es sich bei amplitudenmodulierten akustischen Signalen um entwicklungsgeschichtlich alte Expressivmittel menschlicher und tierischer Kommunikationssysteme handelt, die in Gefahrensituationen und im Kontext agonistischen Verhaltens Einsatz finden. Das Projekt leistet einen Beitrag zur musikpsychologischen Arousal-Forschung, indem es eine bislang vorrangig in der akustischen Ethologie, der Kommunikationswissenschaft und der experimentellen Neurophysiologie untersuchte Eigenschaft kommunikativ genutzter akustischer Signale im Zusammenhang mit dem Komplex Arousal innerhalb musikalischer Kommunikationssituationen betrachtet.The research project looks into amplitude-modulated musical signals acting in the function of musical means of expression. Within the framework of an experimental study, occurrence and intensity of musical amplitude modulation processes are examined in connection with the recipient’s arousal, a state of increased psychophysiological activation aimed at enhancing the organism’s performance and responsiveness. Vocal and synthetic musical signals are used as stimulus material, to which amplitude modulations of various degrees are applied. In addition to peripheral physiological measures and subjective arousal indicators, further dimensions of the recipient’s emotional state are recorded through self-reports. Compared to unmodulated but otherwise largely identical signals, amplitude modulated vocal signals result in an increase in arousal indicators derived from electrodermal activity. Amplitude-modulated vocal and synthetic signals come along with higher subjective arousal ratings and lower valence ratings. They are perceived as arousing and aversive stimuli entailing a heightened activity of the sympathetic nervous system. These findings are interpreted in view of a ‘warning and aversion signal theory’ of amplitude modulation, according to which amplitude-modulated acoustic signals are phylogenetically ancient means of expression in human and animal communication systems, mobilised in dangerous situations and in the context of agonistic behaviours. Amplitude modulation as a property of communicatively used acoustic signals has so far been primarily investigated in acoustic ethology, communication science and experimental neurophysiology. This project contributes to music psychological arousal research by examining it in connection with psychophysiological arousal within musical communication situations
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