1,721,316 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
Reframing the Social: A Contribution from the Perspective of Emergentist Systemism
No full textThis dissertation is centered around questions concerning the social (social ontology) and its relationship to social research. One of its major reference points is the philosophical system (characterized as emergentist systemism in this dissertation) developed by the accomplished Argentinian-Canadian physicist and philosopher Mario Bunge.
This dissertation draws extensively on the research findings of natural and social sciences, both in America and Europe, to argue for a systemist (i.e. transcending both macro- and micro-reductionism), realist, and critical approach to social ontology. In particular, Luhmann’s, Bunge’s, and critical social systems theorists’ formulations of social ontology, as well as Luhmann’s premature shift of focus from ontology to epistemology, are discussed and evaluated in depth.
The approach developed in this dissertation is also extended to contribute to the wider debates within sociological theory and analysis, including the project of analytical sociology (as advanced by, among others, Peter Hedström and Jon Elster), critical realism, reductionism, emergence, micro-macro link, social structure and human agency, dialectics of nature, and causality and mechanism-based (microfoundational) explanations in social science
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
Design and Implementation of 2.4GHz FMCW Radar Circuit
No full text本論文使用整合設計及量測概念，研製2.4GHz調頻連續波雷達電路，在雷達電路中規劃數個子電路測試端點，不僅賦予更多彈性及重覆性，利於電路偵錯及了解，更使電路研製過程更具效率及把握性。 該雷達電路包含調變訊號控制電路、射頻訊號電路、發射及接收天線、基頻訊號處理電路，以及配合之電源電路。本論文研製之雷達電路組成，包含鋸齒波產生器、壓控振盪器、衰減器、電阻性功率分配器、功率放大器、低雜訊放大器、混波器、低通濾波器及運算放大器等元件。透過這些元件特性及系統規劃，經由整合設計、規劃、量測及製作一2.4GHz調頻連續波雷達，此研製經驗可套用至其他微波電路，達到更具有效率性。 論文第一章係簡介調頻連續波雷達，敘述其基本原理，以及整體電路架構規劃。第二章敘述所使用之元件特性、電路設計、佈局以及測試結果，如設計者了解元件特性、焊接考量及設計公式等，實不須進行元件電路製作及測試，直接可進行下章之整合測試過程。第三章則敘述整合電路之各階段電路，依序焊接、研製及量測，以及配合""2×2"" 發射及接收圓極化天線之實際距離量測。第四章則為本論文設計及量測結果結論，並提出未來研究構想。Through the concept of integration of design and test, a 2.4 GHz frequency-modulated continuous wave (FMCW) radar circuit is implemented. The main idea of this work is to set sub-circuits and test points under the full consideration of radar circuit. It not only gives more flexibility to understand and debug the sub-circuits but also implement the radar circuit more efficiently and reliably. The FMCW radar circuit consists of a signal modulation control circuit, a RF signal circuit, transmitting and receiving antennas, an IF signal processing circuit, and a power supply circuit. The implemented sub-circuits include a sawtooth generator, a voltage controlled oscillator, attenuators, a resistive power divider, power amplifiers, low noise amplifiers, a mixer, a low pass filter and operational amplifiers. A Matlab program of Fourier transformation is written to process the IF signals. Under the fully understanding of related devices and circuit planning, the implementation of a 2.4 GHz FMCW radar circuit is completed in one trial. We believe this experience can be applied to other microwave circuits. The first chapter briefly introduces the basic principle and configuration of the FMCW radar circuit. The second chapter depicts the characteristics of devices used in the radar circuit, and the design and measurement results of the sub-circuits. For designers who are already familiar with the characteristics of related devices, fabrication process, soldering considerations, and design formulas, they can progress to the next chapter. The third chapter describes the various stages of the integration and test of the radar circuit. A field test of the radar circuit and a ""2×2"" circularly polarized antenna array is conducted. The fourth chapter gives the conclusion and suggestion for the future work
Parafuscosporella xishuangbannaensis sp. nov. (Fuscosporellales, Sordariomycetes) from submerged wood in China
No full textWang, Lin, Dong, Wei, Yang, Jun-Xian, Zhu, Rong, Zhang, Huang, Yu, Ze-Fen (2023): Parafuscosporella xishuangbannaensis sp. nov. (Fuscosporellales, Sordariomycetes) from submerged wood in China. Phytotaxa 587 (3): 218-228, DOI: 10.11646/phytotaxa.587.3.2, URL: http://dx.doi.org/10.11646/phytotaxa.587.3.
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
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