1,721,003 research outputs found
Jan Kavanagh, Dan Kavanagh, Michael Kavanagh, Claudia Mackin
No full textColor photograph left to right: Jan Kavanagh, Dan Kavanagh, Michael Kavanagh, Claudia Macki
The numerical modellings of laminar and turbulent viscous fluid flour
No full textThe numerical solution of the Navier-Stokes Equations is presented for a two-dimensional incompressible fluid in terms of stream function and vorticity. An uncoupled Galerkin formulation is derived from the governing equations and their respective natural boundary conditions. By assuming a polynomial variation of both unknowns within the flow domain an approximate solution is achieved by the finite element method. In the first part of this work a successful solution of three laminar flow problems is achieved, i.e. the flow: within a square cavity, over a downstream step and past a circular cylinder. Adequate comparison is made with earlier work. In the second part the solution scheme is extended to model developing turbulent flow in a channel by means of an algebraic closure of the time averaged equations. In order to model a variety of flow problems the development of a suitable automatic mesh generating scheme is carried out. Providing fast and efficient discretization of each flow region. This work concentrates on evaluating the solution scheme by solving problems where previous work already exists. With the aid of the mesh generator the program can also be used as a practical predictive tool.</p
Data set for study: Self-esteem and gaming disorder
No full textDataset supporting data for a University of Southampton Doctorate in Clinical Psychology Thesis titled "Self-Esteem and Gaming Disorder" (both study 1 and study 2). The data was collected using Qualtrics and then transferred to SPSS. You need SPSS software in order to access the data.
Also included are two participant information and consent forms that participants completed prior to study 1 or study 2. You need Microsoft Word software in order to access these files.
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Comparing the effectiveness of an 8-week and 12-week cognitive behavioural therapy group for bipolar affective disorder.
No full textBackgroundPrevious systematic reviews have demonstrated efficacy of Cognitive Behavioural Therapy Groups (CBT-G) in treating bipolar affective disorder (BAD). However, effectiveness research of BAD CBT-G (groups delivered in clinical practice rather than a research trial) is sparse. Additionally, the efficacy literature shows variation in the number of sessions delivered, and the number needed for clinically significant change is unclear. Therefore, we examine the effectiveness of a 12-week CBT-G compared to an 8-week group.MethodsAn 8-week vs 12-week CBT-G was delivered in routine practice in an adult community mental health team. We compared pre-post data for N = 88 participants with a diagnosis of BAD who attended either an 8-week CBT-G (n = 43) or 12-week CBT-G (n = 45).ResultsAll routine outcome measure scores which included measures related to depression, generalised anxiety, psychological distress and functioning improved significantly from baseline to treatment endpoint for both the 8-week and 12-week CBT-G interventions, with no significant differences between the groups at post-treatment.LimitationsNo measure for manic symptoms was included. No follow-up data was collected. The study lacks a comparator control group.ConclusionsThis research adds to the literature in two ways by: (i) demonstrating the effectiveness of CBT-G for bipolar affective disorder; (ii) being the first to show no significant difference in outcome measures between an 8-week and 12-week group. The findings can be used to inform the provision of both a clinical and cost-effective intervention
What is the reported relationship between self-esteem and gaming disorder? A systematic review and meta-analysis
No full textThe relationship between self-esteem and gaming disorder has recently captured the interests of researchers. The aim of this systematic review is to synthesise the self-esteem and gaming disorder literature and investigate any potential variance in the size of the correlation between the two variables.The databases PsycINFO, MEDLINE, CINAHL and Web of Science as well as grey literature was searched with backwards citation chaining for studies published between database inception and October 11, 2021. All studies that assessed the relationship between self-esteem and gaming disorder using recommended measures were included. A random effects meta-analysis for self-esteem and gaming disorder was conducted. Subgroup analysis investigating heterogeneity was conducted for: culture, age, measures of self-esteem and gaming disorder.Of 2496 records identified, 37 were included in the review. The quality assessment indicated a moderate risk of bias. The meta-analysis indicated an association between low self-esteem and gaming disorder (r = −0.269 95% CI -0.335 to −0.201). Subgroup analysis indicated this association appears to apply irrespective of culture or age. However, heterogeneity between studies can be partly explained by the self-esteem measure used, indicating investigating sub-components of self-esteem's relationship with gaming disorder would be worthwhile future research
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
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