1,721,154 research outputs found
Do unique mechanisms underlie the expression of attention problems in anxious and inattentive-impulsive youth?: implications for differential diagnosis and treatment
No full textAccumulating evidence suggests that unique mechanisms may underlie the expression of attention problems in youth Attention-Deficit/Hyperactivity Disorder (AD/HD) and anxiety disorders (e.g., AD/HD-Inattentive Type and Generalized Anxiety Disorder). Kendall (2000) proposed that anxiety may be associated predominantly with emotion-based “distortions” in cognitive processing (e.g., misappraisal of the social/interpersonal environment, attentional bias toward perceived threat/danger), while inattention in AD/HD youth may be linked to more global cognitive “deficiencies” (e.g., selective/sustained attention, inhibitory control; Barkley, 1997). The current study compared performance of anxious (ANX; n=21; 8-17 years), inattentive-impulsive (I-I; n=22, 9-16 years), and typically developing children (NC; n=22; 8-13 years) on neurocognitive tests of both general (Stroop Color-Word Test, SCW; Conners’ Continuous Performance Test, CPT) and emotion-based attentional processes (Emotional Stroop, ES; Faces Dot Probe Task, FDP). As hypothesized, I-I demonstrated poorer sustained attention and inhibitory control, as evidenced by lower CPT commission error raw scores, relative to ANX and NC, and a non-significant trend toward higher CPT omission error T-scores, relative to ANX. In addition, ANX demonstrated superior selective attention, relative to I-I, as indicated by higher SCW raw scores (i.e., more items completed in 45 seconds), higher SCW T-scores, and fewer SCW errors. As predicted, ANX demonstrated greater attentional bias toward threat cues, relative to I-I, as indicated by greater FDP bias scores in response to angry faces. No significant group differences were found in bias scores on happy or sad trials. In addition, ANX showed a trend toward significant “absolute bias” scores (i.e., relative to zero) in response to angry faces alone, suggesting a potential emotion-specific attentional bias toward threat cues in anxious youth; I-I exhibited an “absolute bias” toward sad faces, alone. ES bias scores were not significant and did not distinguish between groups. The findings provide initial evidence for the neuropsychological differentiation of attention problems in anxious (i.e., threat-related attentional bias) and inattentive-impulsive children (i.e., general selective/sustained attention), suggesting the potential utility of cognitive assessment as an aid for differential diagnosis and subsequent treatment of youth anxiety and AD/HD.Ph.D.Includes bibliographical references (p. 51-66)by Adam Scott Weissma
Biochemical characterization of CBF3, an essential DNA-binding component of the yeast kinetochore
Get PDFThesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Biology, 1998.Includes bibliographical references (leaves 99-107).by Adam Scott Grancell.Ph.D
Log feature on wood hauler Adam Scott
No full textIn 1955, The Log spent a few hours with Adam Scott who is one of 550 people hauling wood to Champion as a truck wood hauler. More than 25% of Champion’s daily requirement of 1,600 cords is received from local truckers who come from on average 22 miles away and as far as 70 miles. In this photograph, Scott enjoys a meal during the workday. More information about this photograph can be found in Champion publication The Log. Click the link in the “Related Materials” field to view the article on pages 10 - 15
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
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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