1,720,972 research outputs found
Association between suicidal spectrum behaviors and Attention-Deficit/Hyperactivity Disorder: a systematic review and meta-analysis
No full textThe relationship between ADHD and suicidal spectrum behaviors (SSBs) remains uncertain. We conducted the first meta-analysis on the association between ADHD and SSBs taking possible confounders into account. Based on a pre-registered protocol (PROSPERO-CRD42018093003), we searched Pubmed, Ovid and Web of Knowledge databases through April 6th, 2018, with no language/publication type restrictions, and contacted study authors for unpublished data/information. From a pool of 2798 references, we retained 57 studies. Random-effects models were performed. Study quality was rated using the Newcastle-Ottawa Scale. After pooling crude ORs, we found a significant association between ADHD and suicidal attempts (2.37, 95% CI = 1.64–3.43; I2 = 98.21), suicidal ideations (3.53, 2.94–4.25; I2 = 73.73), suicidal plans (4.54, 2.46–8.37; I2 = 0), and completed suicide (6.69, 3.24–17.39; I2 = 87.53). Results did not substantially change when pooling adjusted ORs. Findings were also in general robust to sensitivity analyses to assess possible moderators. Awareness of the association between ADHD and SSBs should contribute to more effectively prevent SSBs
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
Similitudes et différences entre le TDAH et le TSA, illustrées par l’étude du défaut d’inhibition
No full textLe Trouble du Déficit d’Attention avec Hyperactivité (TDAH) et le Trouble du Spectre Autistique (TSA) sont deux troubles fréquemment comorbides. L’étude de cette comorbidité est récente puisque c’est seulement depuis la sortie du DSM-5 que la classification diagnostique permet leur coexistence. La littérature récente explore cette comorbidité ainsi que les similitudes et différences entre les deux troubles. Nous présenterons tout d’abord une étude évaluant la prévalence des sujets TDAH parmi les apparentés de sujets TSA. Ensuite, nous exposerons les résultats d’une méta-analyse portant sur l’épidémiologie des comportements suicidaires chez les sujets TDAH. Enfin nous présenterons une étude en Imagerie par Résonnance magnétique (IRM) fonctionnelle comparant les activations cérébrales d’enfants TDAH, TSA et au développement typique pour une tâche d’inhibition motrice. En conclusion, les études présentées illustrent les symptômes communs au TDAH et au TSA car l’inattention, l’hyperactivité et le défaut d’inhibition d’une part, les difficultés dans les interactions sociales d’autre part se retrouvent dans les deux troubles. Cependant les réseaux cérébraux impliqués dans l’inhibition motrice semblent différement activés, ce qui laisse suggérer que les mécanismes sous-jacents sont distincts.Attention Deficit Hyperactivity Disorder (ADHD) and Autism Spectrum Disorder (ASD) are two neurodevelopmental disorders that frequently co-occur. Studying this comorbidity is recent, it is only since the release of the DSM-5 that the diagnostic classification allows their coexistence. Recent literature explores this comorbidity as well as the similarities and differences between the two disorders. First, we will present a study evaluating the prevalence of ADHD among relatives of ASD probands. Then, we will present the results of a meta-analysis on the epidemiology of suicidal behaviour in ADHD subjects. Finally, we will present a functional Magnetic Resonance Imaging (MRI) study comparing brain activations of ADHD, ASD and typically developing children, for a motor inhibition task. In conclusion, the studies show common features of ADHD and ASD: inattention, hyperactivity and impulsivity on the one hand, and difficulties in social interactions on the other hand are found in both disorders. However, the brain networks involved in motor inhibition seem to show different activations, suggesting that the underlying mechanisms are distinct
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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