1,720,964 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
Investigating Secondary School Students Motivation for Chemistry Class in Terms of Various Variables
Full text linkThe aim of this study is to investigate the motivation of secondary school students for chemistry class in terms of gender, class standing, school type, grade point average, average score in chemistry class, parents marital status, parentals bereavement, mothers educational background, and fathers educational background. The survey model of the quantitative research methods was used for the purpose of the study. The data were collected with Chemistry Lesson Motivation Scale for Secondary School Students[sic] by Eskicioğlu and Alpat (2017). The sample consists of 475 female and 399 male students, adding up to 874 students. The obtained data were analyzed with SPSS 20.0, a statistical software program. The study revealed no statistically significant difference between the sub-domains self-efficacy and extrinsic motivation but between anxiety and intrinsic motivation.Statistically significant differences were found between the students motivation for chemistry class and school type, class standing, grade point average (GPA), average score in chemistry class, and fathers graduation status.There was no statistically significant difference between parentals bereavement and mothers graduation status. No relationship was determined between anxiety and self-efficacy sub-domains of the chemistry motivation scale. However, the study observed a moderate relationship between self-efficacy and intrinsic and extrinsic motivation, a weak negative relationship between anxiety and intrinsic motivation, and a moderate positive relationship between extrinsic motivation and intrinsic motivation
Kimya Eğitiminde Motivasyon ve İlgili Çalışmalar
Full text linkBu çalışma, kimya eğitiminde motivasyonun önemine vurgu yapmak ve Türkiyede yapılan kimya eğitiminde motivasyon çalışmalarını değerlendirmek amacıyla yapılmıştır. Bu amaç doğrultusunda Türkiyede ve dünyada kimya motivasyonu ile ilgili yapılmış çalışmalar incelenmiştir. Türkiyede son on yılda yapılan kimya motivasyonu ile ilgili çalışmaların değerlendirilmesi yapılmıştır. Çalışmaların değerlendirilmesinde belgesel tarama yönteminin genel belge tarama ve içerik analizi tekniklerinden yararlanılmıştır. Türkiyede kimya motivasyonu ile ilgili yapılan çalışmalar ULAKBİLİM ve YÖK Ulusal Tez Merkezi veri tabanlarında alınmıştır. Çalışma sonucunda kimya motivasyonu ile ilgili çalışmaların son on yıl içerisinde yapıldığı, çalışma sayısının oldukça sınırlı olduğu, çalışmalarda nicel yöntemlerin kullanıldığı ve daha çok lisans öğrencileri ile daha sonra ise orta öğretim öğrencileri ile çalışıldığı görülmüştü
Öğrencilerin Dijital Kavramı ve Dijital Ortamlarda Kimya Öğretimi İle İlgili Görüşleri
Full text linkÇalışmada değişen eğitim ve öğretim ortamlarının öğrencilerin öğrenmelerinde nasıl bir değişiklik yaptığına dair görüşlerini tespit etmek amaçlanmıştır. Bu amaç doğrultusunda nitel araştırma yöntemlerinden durum çalışması kullanılmıştır. Fen bilimleri alanında eğitim alan 55 ön lisans öğrencisine araştırmacı tarafından geliştirilen yapılandırılmış Dijital kavramı ve dijital ortamlarda kimya öğretimi hakkında öğrenci görüşleri adlı görüşme formu uygulanmış ve elde edilen veriler içerik analizi tekniği kullanılarak değerlendirilmiştir. Çalışma sonunda öğrencilerin zamanlarının büyük bölümünün dijital ortamlarda geçirdikleri, dijital ortamlardan bilgi edinmede yararlandıkları anlaşılmıştır. Ancak öğrencilerin kimya dersi ile ilgili ve öğrenme ortamlarının tamamen dijitalleşmesi ile ilgili sorulara dijitalleşmeye karşı çekimser veya olumsuz bir tavırla yaklaştıkları görülmüştür. Ayrıca öğrencilerin dijital ortamlarda derslerin içeriklerine yönelik hazırlanacak materyallerin katkısı hakkında fikir sahibi olmadıkları anlaşılmıştır
Students Metaphors on Formation of Molecules from Atoms
Full text linkChemistry as a discipline in general incorporates abstract concepts, which should be visualized through experiment- and application-oriented methods. It is a well-known fact in Turkey that chemistry class offered by simple and traditional methods cannot be understood by students at a satisfactory level. Such chemical subjects as atoms, molecules, and compounds include abstract concepts of this kind. The visualization of these structures is as strenuous as their teaching. Among the most arduous subjects is the teaching of the mechanism by which atoms form molecules, compounds, and many other structures by means of chemical and physical bonds. Students cannot conceptualize and understand such aspects as atom, molecule, compound, and mixture. This study investigates how associate and bachelors degree students in the departments of social and natural sciences metaphorize the formation of molecules from atoms. The metaphors produced by the participating students were classified into eight themes for the purpose of the study. All the created metaphors incorporate positive connotations. It can be proposed based on the metaphors that the subjects at stake can be metaphorized and thematized for the concretization thereof. Thus, learning becomes more permanent and effective
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