1,721,154 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
Towards tonic seizure detection based on multimodal detection methods using the EpiSense sensor
Full text linkIntroduction Tonic seizures in epilepsy are characterized by a severe continuous contraction of multiple muscle groups in the body, including the respiratory muscles. This type of seizure may lead to unconsciousness, cardiorespiratory depression, and in severe cases even to Sudden Unexpected Death in EPilepsy (SUDEP). Current detection methods are based on measurement of heartrate and movement. However, a tonic seizure is not always associated with a rise in heartrate. And little movement (or a lack thereof) makes current detection methods suboptimal for tonic seizure detection. Especially during night-time, when supervision is minimal, a real-time method for detecting tonic seizures is necessary. Design project The overall goal of this project is to design an algorithm for the detection of tonic seizures using the EpiSense system in order to apply it in patients’ home environments. Families and friends fear a tonic seizure, with its possible detrimental outcomes, to pass unnoticed during night-time. The use of a sensor for the detection of tonic seizures, could decrease anxiety amongst the patient’s loved ones. Because then, if a seizure does occur, direct medical intervention (which can be of vital importance) can be provided immediately if necessary. The EpiSense is a system developed by Kempenhaeghe in collaboration with Holst centre/Imec, and Eindhoven University of Technology (TU/e). This system consists of a multimodal sensor (measuring electromyography (EMG), electrocardiography (ECG), and accelerometry (ACM)) and a control tablet (with Android application software). Setup and implementation The complexity of this design project mainly lies in the designing, setting up, and performing of clinical trials with the newly developed sensor for the design of an adequate tonic seizure detection algorithm. Furthermore, prior to setting up and initiating the trials, the sensory system should first comply to specific requirements for safety and to be able to collect high-quality data. Subsequently, clinical trial protocols must be written (and adjusted) for approval from ethical committees to execute the clinical trials (phase 1: intramural, phase 2: extramural). For setting up and performing the clinical trials a close collaboration between the investigator, neurologists and other healthcare providers is necessary. Ultimately, after sufficient measurement data have been collected, a detection algorithm should be designed (considering all three measurement modalities of the EpiSense sensor) and validated. Results During this project, first the EpiSense system has been tested and re-designed. Next it has been used in the first clinical trials, both intramural (in Kempenhaeghe) and extramural (at the long-stay facilities of Kempenhaeghe). Unfortunately, the development of an adequate detection algorithm has been hindered by the relatively small amount of measured tonic seizures captured during these clinical trials. In the trials, only 11 seizures with a tonic component were collected in 11 patients over approximately 800 hours of measurements. For the moment, it can be concluded that solely based on EMG measurements, nocturnal tonic seizures can be detected with a sensitivity (SEN) of 72.7% and a positive predictive value (PPV) of 80%. In this study, additional ACM and ECG measurements (synchronously measured with the corresponding EMG-data) have not been of extra value for the detection of nocturnal tonic seizures. Discussion Based on this first preliminary analysis and limited data it may be concluded that EMG measurements could be valuable in detecting nocturnal tonic seizures. The loss of the ECG signal in most recordings as well as the loss of the EMG signal in some recordings during these clinical trials were caused by letting loose of the skin electrodes. Furthermore, the conclusions in this design project have been drawn on a very small number of measured tonic seizures. Recommendations Follow-up studies in which more patients can be measured during longer periods of time should validate this new detection algorithm and prove whether the sensor can effectively be used in the patients’ home environments. To be able to include heartrate data in future analysis, skin electrodes should be replaced by photo plethysmography (PPG) based heart rate measurement to avoid loss of the signal through electrodes letting loose (as was the case during this project). A suggestion for expansion of the detection algorithm to be able to include ACM measurements in the detection algorithm as well, is to get rid of the ever-changing offset in the ACM signal
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
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
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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