1,720,978 research outputs found
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
Hydrothermal alteration study of the Kamojang geothermal field, West Java
No full textFull text is available to authenticated members of The University of Auckland only.The vapor-dominated Kamojang geothermal field is located in West Java (Indonesia). The field lies in high terrain, 1500 m above sea level, and is hosted by volcanic rocks. Seven wells were available for this study, namely KMJ-7 (monitoring well, 536 m deep), KMJ-10 (dry hole, 763 m), KMJ-11 (production well, 1029 m), KMJ-12 (production well, 1500 m), KMJ-53 (exploration/production well, 1300 m ), KMJ-59 (exploration/production well, 1298 m), and CHR-1 (exploration/production well, 1804 m).
The reservoir is hosted by interbedded pyroclastics and lavas of andesitic composition with some basaltic andesites. The permeable features are dominated by fractures, but some primary permeable features e.g. intergranular pores, and contacts between different lithologies survive. Fluid produced from the field is now vapor but the hydrothermal minerals present in the reservoir show that the rock altering fluid was liquid. The main steam zone is capped by a steam-heated layer. The water in the upper part of this layer is steam condensate of acid sulphate composition, and the water in the lower part is of near neutral pH. Isotope evidence shows that the recharge water is meteoric. No deep neutral pH water discharges at the surface.
There are 2 hydrothermal mineral assemblages present at Kamojang, namely those produced by the "acid" and "neutral" pH fluids. The "acid" mineral assemblage, which occupies shallow levels (down to 100 - 300 m), consists of kaolin, smectite, alunite, quartz, cristobalite, and pyrite. This altering fluid was of acid sulphate type which formed due to the oxidation of H2S. The "neutral" mineral assemblage occupies the deeper levels, and comprises varying proportions of quartz, adularia, albite epidote, titanite, wairakite, laumontite, calcite, siderite, hematite, pyrite, anhydrite, smectite, chlorite, illite, and interlayered clays. The altering fluid was liquid of near neutral pH, and chloride-sulphate type.
Mass transfer was dominated by removal of some major constituents, but only small portions of them taken from the rocks during alteration were incorporated into secondary minerals in cavities; the rest was removed in solution. Si, Al, Ca, Na, and K were depleted; Fe 3+ and Mg were mostly lost; Ti, Mn, and P were mostly gained, while the behaviour of Fe 2+ varied. Trace elements were variably gained or lost.
In general, the present-day measured downwell temperatures are lower than those indicated by the mineralogy (e.g. epidote, wairakite, laumontite, and clays) by about 10 - 50 °C and fluid inclusion homogenisation temperatures (by about 60 °C). This suggest cooling, although the downwell measured temperatures may be too low. Permeability has decreased due to mineral deposition but tectonic activity has helped maintained it by reopening vertically permeable features. Hydrothermal mineral parageneses and vein cross-cutting relationships in the deeper levels, for example, veins of quartz+wairakite-calcite-anhydrite cut by veins of quartz-pyrite, suggest that although this field has undergone at least 3 hydrothermal episodes, the composition of the altering fluid remained constant, i.e., of near neutral pH. An early episode is characterised by simple quartz vein and a middle one by many mineralisation with more diverse mineralogy, including quartz, calcite, siderite, hematite, chlorite, illite, wairakite, epidote, and pyrite. Anhydrite, which formed due to the presence of acid sulphate-rich water, marks the last stage of the middle episode. The last episode was characterised by the deposition of quartz and pyrite.
Like Larderello (Italy), and The Geysers (California), other vapor-dominated geothermal fields, Kamojang may have evolved from an earlier hot water or liquid-dominated system. With the reduced permeability resulting from the intensive water-rock interaction, heated by a potent heat supply (possibly magmatic), the hot water boiled off more water than recharge could replace, and the reservoir fluid became dominated by vapor. The liquid phase contained within pore spaces has lower mobility than vapor so that only small amount of liquid enters the producing wells.Examination Versio
STRATEGI PENINGKATAN KUALITAS PELAYANAN PUBLIK DI DINAS DUKCAPIL DAN KANTOR PERTANAHAN KOTA TANGERANG
Full text linkPenelitian ini di latar belakangi oleh kondisi penyelenggaraan pelayanan publik yang kurang efektif dan efisien, dimana organisasi pemerintah masih banyak mengidap penyakit-penyakit birokrasi yang dicirikan dengan lebih menekankan proses dari pada tujuan, selain itu pelayanan yang diberikan hanya kepada kedekatan hubungan sehingga masyarakat mengeluhkan proses pelayanan tersebut lebih banyak menyulitkan dari pada mempermudah. Beragam keluhan dan ketidakpuasan masyarakat terhadap pelayanan publik menunjukan suatu harapan agar perubahan kinerja pegawai pemerintah mampu kearah yang lebih baik. Pelayanan publik merupakan bentuk pelayanan yang di berikan pemerintah untuk masyarakat yang membutuhkan pengurusan administrasi. Salah satu pelayanan yang dibuat oleh pemerintah yaitu pada Dinas Pertanahan adalah pendaftaran tanah, sedangkan pada Dinas Kependudukan dan Pencatatan Sipil yaitu pembuatan Akta Kelahiran. Akta kelahiran merupakan bentuk identitas seorang anak yang menjadi bagian yang tidak terpisahkan dari hak sipil dan politik warga negara.akta kelahiran bukan hanya sekedar selembar kertas tapi juga digunakan untuk melamar kerja, sekolah dan sebagai bentuk pengakuan status kewarganegaraan seseorang dan identitas serta bukti pemberian pelayanan public.
Kata kunci : Pelayanan Publik, Pemerintah, Kinerja Pegawa
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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