1,720,962 research outputs found
Using Metaphorical Models for Describing Glaciers
No full textTo date, there has only been little conceptual change research regarding conceptions about glaciers. This study used the theoretical background of embodied cognition to reconstruct different metaphorical concepts with respect to the structure of a glacier. Applying the Model of Educational Reconstruction, the conceptions of students and scientists regarding glaciers were analysed. Students' conceptions were the result of teaching experiments whereby students received instruction about glaciers and ice ages and were then interviewed about their understandings. Scientists' conceptions were based on analyses of textbooks. Accordingly, four conceptual metaphors regarding the concept of a glacier were reconstructed: a glacier is a body of ice; a glacier is a container; a glacier is a reflexive body and a glacier is a flow. Students and scientists differ with respect to in which context they apply each conceptual metaphor. It was observed, however, that students vacillate among the various conceptual metaphors as they solve tasks. While the subject context of the task activates a specific conceptual metaphor, within the discussion about the solution, the students were able to adapt their conception by changing the conceptual metaphor. Educational strategies for teaching students about glaciers require specific language to activate the appropriate conceptual metaphors and explicit reflection regarding the various conceptual metaphors
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
Vermittlungsansätze der außerschulischen Lernorte Natur, Museum und Schülerlabor
No full textAußerschulische Lernorte wie Themenpfade, Geoparks, Weltkulturerbestätten, Museen und Schülerlabore an geowissenschaftlichen Forschungseinrichtungen sind von essenzieller Bedeutung für die Kommunikation geowissenschaftlicher Wissensbestände hinein in die Schulen und an die Öffentlichkeit.
Das vorliegende Kapitel zeigt die Vielfalt der Angebote. An der Vermittlung interessierten Geowissenschaftlerinnen und Geowissenschaftlern können die Beschreibungen der Vermittlungsansätze als Anregung für eigene Projekte dienen. Lehrkräfte erhalten einen Überblick über außerschulische Lernorte, die sie mit ihren Lerngruppen aufsuchen können, und erfahren, was sie dort erwarten wird
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
Prädiktoren der Einstellung von Schülerinnen und Schülern zu Wildnis in Deutschland unter besonderer Berücksichtigung von Vorstellungen und Migrationshintergrund : kumulative Dissertation
Full text linkIn der vorliegenden kumulativen Promotion wurden im Rahmen von drei separaten Teilstudien die Einstellung zu Wildnis von Schülerinnen und Schülern sowie die potenziellen Einstellungs-prädiktoren der Wildnisvorstellung und des Migrationshintergrundes untersucht. Hierbei diente die erste quantitative Schülerbefragung (n1 = 280) der Validierung eines Erhe-bungsinstrumentes zur Erfassung der Einstellung zu Wildnis. Im Rahmen der zweiten Erhebung (n2 = 266) erfolgte eine deskriptive Beschreibung von Wildniseinstellungen und -vorstellungen sowie ein Nachweis des prädiktiven Einflusses der Vorstellung von Wildnis auf die Einstellung zu Wildnis. In der dritten Fragebogenerhebung (n3 = 1356) zeigten sich hauptsächlich signifi-kante Einstellungs- und Vorstellungsunterschiede zwischen Personen ohne Migrationshinter-grund sowie Personen mit eigenen Migrationserfahrungen oder zwei Elternteilen mit einem Migrationshintergrund. Im Rahmen einer Mediationsanalyse konnte zudem aufgezeigt werden, dass sich der Migrationshintergrund sowohl indirekt über die Vorstellung von Wildnis als auch direkt negativ auf die Einstellung zu Wildnis auswirkt.In the present cumulative dissertation wilderness attitudes of students as well as the potential attitude predictors of wilderness perception and migratory background were assessed within the scope of three separate sub-studies. The first quantitative student survey (n1 = 280) served for the validation of the survey instru-ment about attitudes towards wilderness. In the scope of the second inquiry (n2 = 266) wilder-ness attitudes and perceptions of students were described and the predictive influence of wil-derness perceptions on wilderness attitudes was verified. The third inquiry (n3 = 1356) showed mainly significant differences in the attitudes and perceptions of persons without migrant back-ground and those who had personal migration experience or two parents with a migrant back-ground. Moreover, a mediation analysis could prove that the migrant background served on the one hand as a negative direct and on the other as a negative indirect attitude predictor via the wilderness perception
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
- …
