1,721,299 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
FPGA Acceleration of 3D FDTD for Multi- Antennas Microwave Imaging Using HLS
Full text linkMicrowave Imaging (MI) for biomedical applications has attracted attention due to its harmless radiation compared to X-ray or MRI. One of the commonly used computing methods in MI is Finite Difference Time Domain (FDTD), which is executed several times in iterative loops, hence resulting in a high execution time. Although several hardware accelerators for FDTD have been recently introduced, they are not specifically designed for MI applications. In particular, only simple absorbing boundary conditions have been investigated, and the impact of dispersive materials on FDTD has not been considered. In this paper, we propose a multi-FPGA accelerator for 3D FDTD that is integrated in an MI algorithm, with Convolutional Perfectly Matched Layer (CPML) boundary conditions and an exact model for dispersive materials. By using High Level Synthesis (HLS), we obtain an optimized hardware accelerator that uses an efficient blocking method to reduce the data transfer time between external and local memories. We propose two alternative architectures that trade off performance and resource usage. In addition, our code, being developed at a high level, can also be run on GPUs whenever necessary. The results show that our multi-FPGA accelerator is superior to three similar GPU-based designs in terms of execution time and power consumption
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
台北縣衛生所護理、助產人員急救知識、態度暨需要調查研究
No full text[[abstract]]本研究旨在瞭解台北縣各衛生所護產人員之急救知識、態度、知識來源及對於各項急
救知識之需要程度等現況，並探討影響這些變項之因素，以做為衛生機關辦理急救在
職訓練及推廣急救教育之參考。
研究者先參考獻草擬初稿，再經由內容效度與預試之處理修訂完成問卷。研究之母群
體為台北縣轄區廿九鄉鎮市衛生所之公共衛生護士及助產士，於七十四年三月間進行
施測，採集體填答之方式進行，並對出席率低之衛生所再個別訪查，共得一一一份有
效問卷；所收集資料以平均數、標準差、變異收分析、薛費氏檢定、T 檢定、卡方檢
定、相關矩陣、複迴歸等方式進行統計分析。
研究中發現，受測之護產人員約有2/3 未曾接受急救在職訓練，而曾受訓者亦多屬短
期之訓練。此外，護產人員之急救知識得分與知識需要程度及施救經驗等變項呈一致
之現象，即得分較低之項目，亦較缺乏施救經驗，同時也認為較需要此方面之知數；
其中以「窒息、人工呼吸與心臟按摩」、「急性中毒之處理」、「創傷處理」等三方
面最為顯著，而護產人員急救知識來源以「求學期間相關課程」為主要來源，其次為
「在職急救訓練」。
研究中亦顯示，護產人員之整體急救態度尚可，大致偏向正向，惟其「參與急救活動
之意願」得分顯著低於「對急救之一般性價值判斷」，且部份護產人員並未對將「緊
急救護」及「推廣急救教育與訓練」視為其工作項目，顯示態度仍有得改善；而護產
人員參與急救活動之意願亦受年齡影響，年齡愈大者參與意願愈低。
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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