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    Pengaruh Model Perletakan Struktur Rangka Baja Sistem Bresing akibat Beban Gempa

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    Sistem struktur rangka baja bresing konsentris dan eksentris merupakan sistem struktur konstruksi yang termasuk dalam struktur yang tahan terhadap beban gempa. Pada penelitian ini, masing-masing sistem struktur rangka baja bresing konsentris dan eksentris tersebut dianalisis dengan model perletakan yang berbeda-beda mulai dari struktur dengan perletakan sendi, jepit, dan struktur yang menggunakan base isolator. Model struktur juga divariasikan dengan jumlah tingkat yang berbeda yaitu tingkat 3, 4, dan 5, namun dimensi lebar dan panjangnya dibuat sama. Tahap awal yang dilakukan pada penelitian adalah melakukan preliminary design dan pemodelan struktur. Kemudian dilanjutkan dengan penentuan data gempa riwayat waktu di permukaan. Setelah itu, dilanjutkan dengan penentuan parameter base isolator struktur, dan kemudian melakukan analisis struktur. Hasil analisis struktur menunjukkan kenaikan rata-rata periode struktur rangka bresing konsentris (SRBK) dari perletakan sendi dan jepit masing-masing adalah sebesar 2,20 dan 2,32 kali jika menggunakan perletakan base isolator. Sedangkan kenaikan rata-rata periode struktur rangka bresing eksentris (SRBE) dengan perletakan sendi dan jepit masing-masing adalah sebesar 2,07 dan 2,20 kali jika menggunakan perletakan base isolator. Selain itu, penggunaan base isolator pada struktur SRBK dan SRBE dengan jumlah tingkat dan periode struktur yang lebih tinggi akan membuat struktur akan lebih fleksibel dan belum tentu membuat struktur SRBK dan SRBE tahan gempa, namun dapat mengontrol struktur tersebut sehingga terhindar dari periode struktur dalam kondisi resonansi yang berbahaya

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

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    We 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

    EFEKTIVITAS PEMBELAJARAN PETA KONSEP DALAM MENINGKATKAN HASIL BELAJAR MATEMATIKA MATERI KESEBANGUNAN DAN KEKONGRUENAN DITINJAU DARI KREATIVITAS

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    The purpose of this study was to determine whether the mathematics learning outcomes on the congruence and congruence material taught by concept maps were better than students taught by conventional methods. The variables in this study were two independent variables (1) learning methods, and (2) students\u27 creativity and one dependent variable, namely mathematics learning outcomes. The sample in this study were students of class IX B and IX E SMP Negeri 2 Abepura Jayapura. Data collection methods used in this study are: documentation, questionnaires and test methods. Questionnaires and tests used to retrieve data in research before use were tested for validity and reliability. The processed data is data that is normally distributed and homogeneous. The results of the study showed that students\u27 mathematics learning outcomes on the similarity and congruence material taught with concept maps were better than those taught by conventional methods. Mathematics learning outcomes of students on similarity and congruence materials that have high creativity are better than moderate creativity. The mathematics learning outcomes of students on similarity and congruence materials that have moderate creativity are better than low creativit

    Dispelling the Myths Behind First-author Citation Counts

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    We 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

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    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We 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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