1,720,970 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
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
Effects of multi-sensory stimulation in people with Huntington's Disease: a randomised controlled pilot study
No full textOBJECTIVE: To investigate whether behavioural, motor and physiological responses of individuals with Huntington's disease (HD) to a controlled multisensory environment (MSE) are effective as a therapeutic (sustained effects) or leisure (immediate effects) activity. DESIGN: Pilot study--a randomized, controlled, two-group design. SETTING: Specialist residential unit for people with mid-late stage HD. SUBJECTS: Twelve patients with HD (one subject from each group dropped out during the study after week 8 due to medical complications). INTERVENTIONS: Patients attended eight, 30-minute sessions over a four-week period, of multisensory stimulation (MSE, treatment group) or relaxation activities (control group). MAIN OUTCOME MEASURES: Between-group comparisons for changes between assessment sessions for two behavioural assessments: Rehabilitation Evaluation--Hall and Baker (REHAB), Behaviour and Mood Disturbance Scale (BMD) a motor assessment: the dyskinesia section of the St Hans Rating Scale (SHRS); physiological measures: blood pressure, heart rate and respiratory rate. Secondary measures during intervention sessions included behavioural assessment using the Interact. RESULTS: There were no significant differences found between the groups for any main outcome measures made between sessions. The MSE group showed some positive effects within-sessions, with the Interact showing significant between-group differences in immediate effects on mood (p = 0.028). There was also a significantly different change over time for within-session changes in stimulation levels (p = 0.0002) and mood (p = 0.0001) between the groups. No physiological effects were observed in relation to sessions in either group. Two MSE subjects underwent changes in medication during the study period. CONCLUSIONS: There was no therapeutic effect of MSEs over the four-week study period. MSEs appear to be more effective thanconventional relaxation techniques as a leisure activit
Effects of knee joint angle and tilt table incline on force distribution at the fee and support straps
No full textOBJECTIVE: To investigate the effects of tilt table incline and knee flexion angle on the degree of weight bearing and forces exerted across the supporting straps. DESIGN: A quantitative and exploratory study to investigate the effects of a mechanical procedure. SETTING: Physiotherapy gymnasium. SUBJECTS: Twelve healthy subjects (9 female, 3 male) aged 22-45 years. INTERVENTIONS: Subjects stood on a tilt table, on two occasions, with simulated contractures of 10 degrees and 40 degrees knee flexion. Nine tilt angles, between 10 degrees and 90 degrees, were maintained for 1 minute each in random order. MAIN OUTCOME MEASURES: Force was recorded from single-point load cells placed under the feet, and at knee and chest straps. RESULTS: The degree of simulated knee contracture (10 degrees or 40 degrees) influenced the distribution of forces at different recording sites. Weight bearing increased with table incline and was significantly less with the 40 degrees than the 10 degrees knee angle (p < 0.001). Conversely, forces across the knee straps were systemically higher with the 40 degrees knee angle (p < 0.0001). The effects were accentuated by greater body weight. Forces across the chest strap also increased with tilt and were significantly larger with the 40 degrees knee angle (p < 0.05). CONCLUSIONS: The relationships between table incline, angle of knee flexion and distribution of forces generated during tilt table standing have been quantified and described. Standing with flexed knees involved less weight bearing under the feet and greater force exerted across the supporting straps. These effects were more pronounced at the higher knee angle and with greater body weight, and could be modified by reducing table inclin
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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