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    REGRESSION ANALYSIS: RELATIONSHIP BETWEEN COVID-19 VACCINATION AND POSITIVITY RATE IN INDONESIA

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    Covid-19 has become a global epidemic since it first emerged in late 2019. Indonesia has made various efforts to prevent Covid-19, both through government policies and mass vaccination. Vaccine availability in mass vaccination policies is not sufficient because vaccines must be well accepted by the general public. One way to gain public trust is to make the impact of vaccination transparent by modeling its impact on the proportion of Covid-19 positive cases. In this study, we performed modeling using two main data sets. The first data is the number of people who received the first or second vaccine between July 1, 2021 and January 1, 2022. The second data is the positive rate (%) from July 15, 2021 to January 15, 2022. The results of this study show that increasing the proportion of the population vaccinated against Covid-19 with both 1st and 2nd doses can reduce the prevalence of Covid-19 cases in Indonesia. Moreover, increasing the proportion of second vaccinations further reduces the prevalence of Covid-19 cases compared to increasing the proportion of first vaccination

    Klasifikasi Tingkat Risiko Kerugian Kecelakaan berdasarkan Karakteristik Pengemudi dengan Analisis Regresi Logistik Ordinal

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    Pengemudi kendaraan bermotor dapat mengalami kecelakaan yang dapat mengakibatkan luka, cedera, patah tulang bahkan kematian. Tingkat kerugian yang mungkin diderita pengemudi kendaraan dapat dibagi menjadi beberapa tingkatan, seperti kerugian ringan, sedang, dan berat. Kecelakaan pada pengemudi kendaraan dipengaruhi oleh faktor manusia (internal) dan faktor kendaraan dan lingkungan (eksternal). Risiko akibat kecelakaan kendaraan bermotor untuk pengemudi dengan karakteristik yang berbeda pada umumnya tidak akan sama. Tingkat kerugian yang mungkin dialami dipengaruhi oleh karakteristik pengemudi dimana beberapa individu lebih cenderung menunjukkan perilaku mengemudi yang tidak aman dibandingkan yang lain. Dalam penelitian ini, digunakan variabel dependen tingkat kerugian material; kerugian material ringan, sedang dan berat. Selain itu digunakan variabel independen jenis kendaraan, jenis kelamin, tingkat pendidikan, pekerjaan, agama dan usia. Analisis dilakukan dengan metode regresi logistik ordinal menggunakan data kecelakaan lalu lintas di Kabupaten Klungkung Provinsi Bali. Berdasarkan hasil penelitian, variabel independen jenis kendaraan, jenis kelamin, tingkat pendidikan, agama dan usia berpengaruh terhadap tingkat kerugian material dengan ketepatan klasifikasi 76,27%

    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

    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

    Author Index

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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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