1,720,955 research outputs found
LANDSLIDE VULNERABILITY ZONE MODELING BASED ON AHP-GIS AND GEOELECTRIC METHOD VERIFICATION: AN EARLY DETECTION STRATEGY IN SEBULU DISTRICT, KUTAI KARTANEGARA REGENCY
Get PDFLandslides and soil movement frequently occur in Sebulu District, especially on the main access road. This study aims to analyze the vulnerability to landslides in Sebulu District, Kutai Kartanegara Regency, using the Analytical Hierarchy Process (AHP) and Geographic Information System (GIS) approaches, with verification through the geoelectric method. The advantage of this integrated approach is its ability to combine multi-criteria spatial modeling with physical validation of subsurface conditions, thereby producing a more comprehensive and reliable analysis. The secondary data used includes geological information, rainfall, slope gradient, soil type, and land cover. By applying AHP weighting, landslide vulnerability values were obtained with "low," "medium," and "high" categories, covering areas of 230.31 ha, 301.99 ha, and 309.30 ha, respectively. Verification using the geoelectric method identified a weak zone with a thickness of 1–5 meters, which could trigger soil movement towards the southwest. These results provide a clearer understanding of landslide-prone areas, which can serve as the basis for early detection strategies in disaster mitigation.Keywords: susceptibility zones, landslide, geographic information system, AHP, geoelectric resistivity
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Get PDFWe 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
Kajian Penggunaan Lahan dan Kondisi Topografi di Sub DAS Karang Mumus, Kota Samarinda
Get PDFKualitas Sungai Karang Mumus yang menjadi sumber keberlangsungan hidup penduduk Kota Samarinda semakin menurun. Pengalihfungsian lahan dan peningkatan pembangunan menjadi faktor utama berubahnya kondisi fisik Sungai Karang Mumus. Penelitian ini betujuan untuk menganalisis perubahan penggunaan lahan dan kondisi topografi di Sub Daerah Aliran Sungai (DAS) Karang Mumus. Pengidentifikasian perubahan tutupan lahan menggunakan metode supervised classification pada citra Landsat 8 OLI/TIRS pada Tahun 2018 dan Tahun 2020. Wilayah Sub DAS Karang Mumus memiliki variasi ketinggian 0 hingga 255 mdpl dengan mayoritas keadan kontur landai dan datar. Secara geologis, Formasi Aluvium, Formasi Balikpapan, Formasi Kampung Baru, dan Formasi Pulau Balang mendominasi di wilayah penelitian dengan lapisan batu pasir kuarsa yang saling beririsan dan kandungan batu bara yang tersisip pada semua formasi kecuali pada Formasi Aluvium. Tanah jenis podsolik merah kuning menjadi yang paling dominan dan rentan terhadap erosi. Analisis menunjukkan bahwa beberapa penggunaan lahan yang mengalami peningkatan adalah semak/belukar, hutan tanaman, dan pertanian lahan kering yang dicampur dengan semak. Sedangkan, penggunaan lahan untuk sawah, pertambangan, lahan terbuka, dan perkebunan mengalami penurunan. Perubahan ini mempengaruhi koefisien aliran limpasan dan kapasitas resapan air di Sub DAS Karang Mumus, meningkatkan potensi bencana banjir. Reboisasi (afforestation dan reforestation) diidentifikasi sebagai solusi untuk melestarikan daerah aliran sungai tersebut.Kualitas Sungai Karang Mumus yang menjadi sumber keberlangsungan hidup penduduk Kota Samarinda semakin menurun. Pengalihfungsian lahan dan peningkatan pembangunan menjadi faktor utama berubahnya kondisi fisik Sungai Karang Mumus. Penelitian ini betujuan untuk menganalisis perubahan penggunaan lahan dan kondisi topografi di Sub Daerah Aliran Sungai (DAS) Karang Mumus. Pengidentifikasian perubahan tutupan lahan menggunakan metode supervised classification pada citra Landsat 8 OLI/TIRS pada Tahun 2018 dan Tahun 2020. Wilayah Sub DAS Karang Mumus memiliki variasi ketinggian 0 hingga 255 mdpl dengan mayoritas keadan kontur landai dan datar. Secara geologis, Formasi Aluvium, Formasi Balikpapan, Formasi Kampung Baru, dan Formasi Pulau Balang mendominasi di wilayah penelitian dengan lapisan batu pasir kuarsa yang saling beririsan dan kandungan batu bara yang tersisip pada semua formasi kecuali pada Formasi Aluvium. Tanah jenis podsolik merah kuning menjadi yang paling dominan dan rentan terhadap erosi. Analisis menunjukkan bahwa beberapa penggunaan lahan yang mengalami peningkatan adalah semak/belukar, hutan tanaman, dan pertanian lahan kering yang dicampur dengan semak. Sedangkan, penggunaan lahan untuk sawah, pertambangan, lahan terbuka, dan perkebunan mengalami penurunan. Perubahan ini mempengaruhi koefisien aliran limpasan dan kapasitas resapan air di Sub DAS Karang Mumus, meningkatkan potensi bencana banjir. Reboisasi (afforestation dan reforestation) diidentifikasi sebagai solusi untuk melestarikan daerah aliran sungai tersebut
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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