1,721,248 research outputs found
sj-pdf-1-jcb-10.1177_0271678X231151621 - Supplemental material for Dialysis adequacy and hemoglobin levels predict cerebral atrophy in maintenance-hemodialysis patients
No full textSupplemental material, sj-pdf-1-jcb-10.1177_0271678X231151621 for Dialysis adequacy and hemoglobin levels predict cerebral atrophy in maintenance-hemodialysis patients by Ming-Xuan Cao, Jia Xiao, Hua-Min Qin, Zhi-Hong Wang, Johannes Boltze, , Shu-Xin Liu, Shen Li in Journal of Cerebral Blood Flow & Metabolism</p
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
Research on Modularized Control Structure Combined with Lane Keeping Control and Tire Anti-slip Strategy for an Automated Vehicle
No full text本研究針對車輛自動駕駛與主動安全控制提出一套模組化設計架構將這兩種領域結合，形成一套完整的輪胎防滑暨車道維持控制系統，自動駕駛部分的車道維持控制根據車輛動態結合前看系統模型，分別以模型預測控制器及強韌控制器達成，主動安全控制部分的輪胎防滑控制策略藉由一套以無損型卡爾曼濾波器為基礎的輪胎暨車輛狀態估測器，透過無損轉換的形式可以將精準度高但複雜的非線性的車輛模型應用於原本線性的卡爾曼濾波器，藉此提升狀態估測效果。估測後的輪胎與車輛狀態值則與通訊模組的與輪胎-地面最大靜摩擦係數一起輸出到防滑控制策略模組，車道維持控制器所輸出的輪胎總扭矩命令則於防滑控制策略模組利用輪胎狀態估測值與摩擦係數計算進行動力分配，達到縱向輪胎防滑作用，而輪胎側向防滑根據半經驗輪胎模型「Magic Formula」進行輪胎滑動分析，找出不同輪胎-地面最大靜摩擦係數下的輪胎側滑角線性區邊界，接著利用輪胎側滑角靜態模型搭配其動態模型的頻域響應分析，決定出對應輪胎側滑角線性區邊界的最大速度邊界，再加以計算出理想速度參考訊號交由車道維持控制器追尋此速度，透過速度控制的方法將兩者結合，加上防滑控制策略模組裡的修轉向修正功能，達成側向輪胎防滑作用。This research proposes a modularized control structure combined with vehicle automatic driving and active safety control technique. This turns out to be a complete vehicle lane keeping control system with tire anti-slip function. For vehicle automatic driving, the vehicle dynamic model combined with look-ahead system is used for designing controllers which are model predictive controller (MPC) and robust H controller to stabilize the vehicle during lane keeping maneuvers. For active safety control strategy, an unscented Kalman filter based tire and vehicle states estimator is used to provide more information to tire anti-slip function block. The nonlinear vehicle model which is more accurate but much complex can be applied to linear Kalman filter through unscented transform without losing its accuracy. The longitudinal anti-slip function uses the estimate results and tire-road maximum friction coefficient from the communication module to distribute the total tire torque command form lane keeping controller to four individual tires. For lateral anti-slip function, the linear boundary of tire sideslip angle with different tire-road maximum friction coefficient is obtained based on semi-empirical tire model as known as magic formula. Every linear boundary of tire sideslip angle has its corresponding maximum speed boundary which is obtained through analyzing the static and dynamic model of tire sideslip angle. Then, the speed boundary will be sent to lane keeping controller as a reference speed signal. Thus, two modules of systems are connected via the speed control scheme. Ultimately, this research uses speed control and steering adjustment to prevent the tire from slipping at lateral axis
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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