1,720,955 research outputs found

    KAJIAN DEFORMASI, STABILITAS DINAMIS DAN UMUR RENCANA DARI CAMPURAN LASTON LAPIS AUS (AC–WC) MENGGUNAKAN ASPAL PEN 60-70 AKIBAT VARIASI TEMPERATUR PENCAMPURAN

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    Aspal merupakan bahan termoplastik yang konsistensinya akan berubah sejalan dengan perubahan temperatur, ketika dipanaskan aspal akan mencair dan akan menyelimuti partikel agregat ketika produksi campuran aspal panas dsan ketika dingin aspal mengeras dan bersatu dengan partikel secara bersama-sama. Pengaturan temperatur pada pelaksanaan konstruksi yaitu pada saat pencampuran sangat penting, viskositas aspal yang ideal untuk pencampuran yaitu 170 ± 20 centistokes.dimana kenyataan dilapangan sering ditemukan, Pemanasan diketel aspal tidak terkontrol dan dapat terjadinya kelebihan atau kekurangan dari temperatur yang disyaratkan pada saat pemanasan aspal. Dikarenakan adanya kemungkinan pemanasan aspal yang bervariasi, dirasa perlu untuk diteliti bagaimana kinerja campuran beraspal tersebut apabila pemanasan aspal dilakukan melebihi dan kurang dari ketentuan yang disyaratkan. Penelitian ini dilaksanakan di Laboratorium Pengujian BBPJN II Padang. Pengujian yang dilakukan adalah pengujian Deformasi dan Stabilitas Dinamis Menggunakan alat Wheel Tracking Machine (WTM). Penelitian ini dilakukan menggunakan material Hot Bin dan Job Mix Formula (JMF) yang digunakan adalah JMF yang digunakan pada salah satu paket pekerjaan, Satker Pelaksanaan jalan Nasional Wilayah II Provinsi Sumatera Barat 2013. Dari hasil pengujian terhadap nilai Stabilitas Dinamis adalah terjadi pengurangan umur rencana akibat variasi temperatur pencampuran aspal pen 60- 70 kelebihan temperatur 10°C dari temperatur pencampuran ideal terjadi pengurangan Umur Rencana sekitar 6.4%, untuk kelebihan temperatur 20°C terjadi pengurangan Umur Rencana sekitar 10.92%, dan kelebihan temperatur 30°C terjadi pengurangan Umur Rencana sekitar 13.97%. Dan sebaliknya Jika temperatur pencampuran kurang dari 10°C dari temperatur pencampuran ideal terjadi pengurangan Umur Rencana 3.72% dan jika temperature kurang sebesar temperatur 20°C terjadi pengurangan Umur Rencana 10.04 %. Kata kunci : Viscositas, Deformasi, Stabilitas Dinamis, Umur Rencana jalan

    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

    PENINGKATAN KOMPETENSI KARYAWAN DAN SAFETY CULTURE MELALUI LEARNING MANAGEMENT SYSTEM “SINTESIS+†SEBAGAI KONTROL OPERASIONAL

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    ABSTRAK Dengan luas konsesi sebesar 118.400 hektar dan memperkerjakan hingga lebih dari 21.694 karyawan dan mitra kerja, pengelolaan operasional dan keselamatan, kesehatan kerja, dan lingkungan (K3L) adalah hal yang harus diperhatikan. Tantangan yang harus dihadapi PT Berau Coal adalah lokasi yang tersebar di 4 (empat) wilayah operasional terpisah: Lati, Binungan, Sambarata, dan Marine. Selain itu, karyawan juga tidak memiliki banyak waktu untuk mengakses informasi, karena sebagian besar waktunya dihabiskan untuk bekerja dengan minimal waktu kerja 8 (delapan) jam perhari. Dengan latar belakang berbagai tingkat pendidikan, mulai dari SD hingga perguruan tinggi, juga menjadi tantangan tersendiri. Disamping itu, berdasarkan data, mayoritas karyawan PT Berau Coal dan mitra kerja berada pada rentang umur 24-40 tahun yang dapat dikategorikan sebagai generasi melek teknologi. PT Berau Coal telah membangun sebuah platform pembelajaran bernama SINTESIS+ (Sistem Informasi Pelatihan dan Edukasi yang Sinergis) dan SID (Single Identity System). SINTESIS+ dan SID memiliki tujuan, antara lain (1) sebagai platform pembelajaran dan informasi terkait dengan operasional dan K3L, (2) meningkatkan kapasitas dan membangun kompetensi karyawan terkait operasional dan K3L, terutama peran pengawas sebagai posisi kunci dalam program pengawasan keselamatan, (3) meningkatkan kontrol operasional terhadap kompetensi karyawan yang terkait dengan ijin masuk, ijin kerja, lisensi, serta spesialisasi, serta (4) mengintervensi perilaku untuk mewujudkan safety culture di karyawan internal dan mitra kerja. Fitur dan konten yang dimiliki SINTESIS+ saat ini adalah online learning dengan konten pembelajaran multimedia, online testing dengan hasil yang real time, sertifikat yang otomatis muncul setelah pengguna lulus dalam online testing, webinar, berita insiden dan operasional pertambangan, repositori untuk portofolio kerja, sistem registrasi event dan pelatihan, terintegrasi dengan SID terkait perekaman data dan kontrol kompetensi karyawan dari segi operasional, baik itu ijin kerja, ijin masuk, lisensi, dan spesialisasi, serta proses yang dapat meningkatkan awareness terhadap K3L secara kontinyu. Sejak peluncurannya, SINTESIS+ telah diakses oleh lebih dari 7867 karyawan, menguji pengetahuan untuk lebih dari 1024 ujian, menyelenggarakan webinar yang diikuti oleh 330 karyawan, serta menjalankan proses yang lebih efektif dan efisien, mulai dari pendaftaran hingga evaluasi. Dampak dari segi operasional atas integrasinya dengan sistem SID adalah meningkatnya compliance level terhadap pemenuhan kompetensi karyawan menjadi sebesar 98% dan proses pemantauan menjadi lebih efisien. Dengan peningkatan tersebut, selain kompetensi karyawan yang meningkat, kontrol terhadap operasional juga menjadi semakin baik, kesadaran terhadap K3L meningkat, dan dengan harapan tingkat insiden dapat menurun. Kedepannya, untuk meningkatkan akses dan safety culture, PT Berau Coal sedang membangun platform mobile apps untuk SINTESIS+. Kata kunci: keselamatan, operasional, pelatihan, platform, teknologi, kompetensi, kontrol   ABSTRACT With 118.400 hectare of concession area and employed people for more than 21.694 employees within company and from business partners, Berau Coal needs to put more concern in managing operational and health, safety and environment (SHE). The challenges that need to be faced are location that scattered into 4 operational areas, limited time for employees to access information because most of time exploited for working, various educational background, and technology literacy. Berau Coal has been developed a learning platform, named SINTESIS+ and SID. The aims in development of those platforms are; (1) as a operational and HSE-themed learning platform, (2) to increase capacity and to build HSE and operational competencies, (3) to increase operational control for competencies related to entry permit, work permit, license, and specialization, and (4) to intervene employees’ behaviour to build safety culture. Features and contents that has been embedded in SINTESIS+ are online learning with multimedia materials, online testing with real time result, webinar, incident and mining operational news, repositories for employees’ portfolio, event and training registration, integrated with SID to record employees’ historical competency-related data, and sustainable process to increase HSE awareness. Since its launching, SINTESIS+ has been accessed by 7867 employees, tested for 1024 exams, conducted webinar that participated by 330 employees, and run more effective and efficient processes. Impacts from integration process with SID are the increase of compliance level for competencies to 98% and the increase of process control efficiency. With those increments, beside the employees’ competency and HSE awareness is increased, hoped to lower incident rate. In the future, to improve access to the platform, Berau Coal is willing to develop mobile apps for SINTESIS+. Keywords: safety, operational, training, platform, technology, competency, contro

    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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