1,720,957 research outputs found
Silika Abu Sekam Padi Terdispersi Pada Membran Polimer Karboksimetil Selulosa (CMC)/Lithium Triflat (LiCF3SO3) Sebagai Elektrolit Padat Baterai Sekunder
Full text linkBaterai sekunder merupakan jenis baterai yang dapat diisi ulang setelah digunakan. Salah satu komponen penyusun baterai adalah elektrolit yang berperan sebagai media transfer ion. Elektrolit yang sedang dikembangkan saat ini yaitu elektrolit padat dalam bentuk membran. Namun, elektrolit ini mempunyai kekurangan yaitu memiliki nilai konduktivitas yang rendah. Untuk meningkatkan nilai konduktivitas ionik dilakukan modifikasi elektrolit dengan penambahan silika abu sekam padi pada membran polimer CMC/LiCF3SO3 menggunakan metode solution casting. Konsentrasi silika abu sekam padi yang digunakan sebanyak 0% dan 12% b/b dari berat CMC. Karakterisasi yang dilakukan pada penelitian ini adalah Electrochemical Impedance Spectroscopy (EIS) untuk menentukan nilai konduktivita ionik, X-Ray Diffraction (XRD) untuk menentukan struktur kristaal membran, dan Fourier-Transform Infrared Spectrometer (FTIR) untuk menentuan gugus fungsi membran. Karakterisasi EIS pada sampel CMC, CMC/LiCF3SO3 dan CMC/LiCF3SO3/Silika mengasilkan nilai konduktivitas ionik sebesar 1,262 × 10-7 S/cm, 6,792 × 10-7 S/cm, dan 2,684 × 10-6 S/cm. Hasil karakterisasi XRD menunjukkan membran polimer memiliki fasa amorf. Derajat kristalinitas yang dihasilkan pada sampel CMC, CMC/LiCF3SO3 dan CMC/LiCF3SO3/Silika adalah sebesar 45,18%, 38,62% dan 17,89%. Hasil karakterisasi FTIR menunjukkan adanya gugus fungsi ciri khas CMC yang terbentuk pada setiap membran polimer adalah O-H dan COO- pada bilangan gelombang 3380-3445 cm-1 dan 1593-1606 cm-1. Penambahan silika abu sekam padi pada membran polimer menyebabkan terbentuknya gugus fungsi Si-O-Si pada bilangan gelombang 641 cm-1 dan 1028 cm-1 yang memiliki nilai tetapan gaya sebesar 480 N/m. Hasil penelitian ini disimpulkan bahwa silika abu sekam padi terdispersi merata dalam membran polimer elektrolit padat CMC/LiCF3SO3 sehingga dapat digunakan sebagai elektrolit padat baterai sekunder
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
Pengaruh Citra Merek dan Celebrity Endorser pada Iklan Campaign #SkincarenyaIndonesia terhadap Keputusan Pembelian Natasha Skin Care (Studi pada Mahasiswa UKSW Followers Akun Instagram @natashaskincare)
No full textPerkembangan dunia usaha industri kecantikan saat ini semakin berkembang pesat hal ini didasari dengan kebutuhan manusia untuk memiliki kulit yang sehat dengan melakukan berbagai cara perawatan kulit. Para pengiklan dituntut untuk lebih efektif, kreatif dan efisien sehingga mampu bersaing supaya iklan yang ditayangkan dapat menciptakan citra merek jangka panjang agar tepat dengan target segmentasi produknya. Tayangan iklan yang memiliki konsep keberagaman Indonesia selalu memiliki daya tarik emosional sehingga penonton merasakan kesamaan dengan visual dalam iklan tersebut. Tujuan dalam penelitian ini adalah untuk menguji pengaruh citra merek dan celebrity endorser pada iklan campaign #SkincarenyaIndonesia terhadap keputusan pembelian Natasha Skin Care. Metode penelitian dalam penelitian ini adalah menggunakan metode kuantitatif yang dilakukan dengan penyebaran kuisioner kepada 100 responden. Teknik analisis yang digunakan yaitu analisis linier berganda. Hasil penelitian yang menunjukkan bahwa variabel citra merek (X1) memberikan pengaruh positif secara parsial sebesar 39,4% dengan nilai koefisien sebesar 4,212 dan variabel celebrity endorser (X2) memberi pengaruh sumbangan efektif secara parsial lebih besar yaitu 46,5% dengan nilai koefisien lebih tinggi sebanyak 4,972. Dengan demikian keduanya secara signifikan memberikan pengaruh positif terhadap variabel keputusan pembelian (Y). Variabel citra merek (X1) dan variabel celebrity endorser (X2) secara simultan memberi pengaruh sumbangan yang efektif terhadap variabel keputusan pembelian (Y) dapat dilihat melalui Adjust R Square sebesar 64,5%. Hasil uji Hipotesis dalam menyatakan bahwa H1 diterima dan H0 ditolak. Sehingga dapat disimpulkan bahwa terdapat pengaruh Citra Merek dan Celebrity Endorser pada iklan campaign #SkincarenyaIndonesia terhadap keputusan pembelian produk Natasha Skin Care.The development of the business world of the beauty industry is currently growing rapidly, this is based on the human need to have healthy skin by doing various ways of skin care. Advertisers are required to be more effective, creative and efficient so that they are able to compete so that the advertisements displayed can create a longterm brand image to match the target segmentation of their products. Advertisements that have the concept of Indonesian diversity always have an emotional appeal so that the audience feels the similarity with the visuals in the advertisement. The purpose of this study was to examine the effect of brand image and celebrity endorser on the #SkincarenyaIndonesia campaign ad on the purchasing decision of Natasha Skin Care. The research method in this research is using quantitative methods which are carried out by distributing questionnaires to 100 respondents. The analytical technique used is multiple linear analysis. The results showed that the brand image variable (X1) partially positive influence of 39.4% with a coefficient value of 4.212 and the celebrity endorser variable (X2) gave a partially greater effective contribution effect of 46.5% with a value of 46.5%. higher coefficient of 4.972. Thus, both have a significant positive effect on the purchasing decision variable (Y). The brand image variable (X1) and celebrity endorser variable (X2)simultaneously give an effective contribution to the purchasing decision variable (Y) which can be seen through Adjust R Square of 64.5%. Hypothesis test results in stating H1that accepted and H0 rejected. So it can be concluded that there is an influence of Brand Image and Celebrity Endorser on the #SkincarenyaIndonesia campaign ad on the decision to purchase Natasha Skin Care products
Penerapan Metode Simple Additive Weighting (SAW) dalam Pemilihan E-Wallet pada Mahasiswa STMIK Dharma Wacana
No full textDi era teknologi yang semakin canggih mengakibatkan adanya perkembangan transaksi online yang bertambah pesat di berbagai macam aspek keuangan. Saat ini pembayaran sangat beraneka ragam dari yang menggunakan uang tunai, kartu, dan dompet digital. Dengan adanya teknologi e-wallet semua transaksi jadi sangat mudah dilakukan dan bisa diakses dimana saja. Dompet digital merupakan alat pembayaran yang sah dibawah pengawasan OJK seperti contoh: Dana, Gopay, Ovo, Shopeepay, Link aja. Dompet digital ini sangat bermanfaat sekali untuk kalangan mahasiswa maupun masyarakat di lingkungan sekitar kampus. Dompet digital merupakan aplikasi yang yang membantu dalam menyimpan dan mengontrol keuangan yang sangat detail. Dengan semakin berkembangnya industri e-wallet maka semua saling bersaing untuk menjadi yang paling mudah diakses dan tanpa biaya admin. Di Indonesia media sosial digunakan untuk strategi pemasaran dan meningkatkan kualitas layanan e-wallet. Di Indonesia tercatat 38 e-wallet yang telah memperoleh izin dari Bank Indonesia contohnya seperti OVO. Dengan adanya berbagai macam jenis e-wallet maka semua perusahaan juga terus menjalankan berbagai inovasi untuk mengenalkan produk kepada masyarakat dengan berbagai macam promosi. Penelitian ini untuk menganalisa pemilihan layanan payment seperti Gopay, OVO, Dana, Link Aja dan Shopee pay di kalangan mahasiswa menggunakan metode Simple Additive Weighting (SAW)
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