1,720,956 research outputs found
Risk Factors for Disabling and Nondisabling Neck Pain in a Large Cohort of Adolescents
No full textObjectives: Neck pain is extremely common and represents a substantial economic burden to our society. We aimed to investigate risk factors for nondisabling and disabling neck pain in a large cohort of Italian adolescents with a cross-sectional study. Design: Six thousand two hundred eighty-one students (14-19 yrs old) answered an online questionnaire, investigating the following: anthropometric data, lifestyle-related items, neck pain frequency and intensity, need for medical examination, and several risk factors. Students who had to give up social activities because of neck complaints constituted the disabling neck pain group. Results: Our findings revealed that sex, age, sports practice, hours of sleep, and family history were risk factors ( P < 0.001) for neck pain in our cohort. Moreover, disabling neck pain group experienced neck pain more frequently ( P < 0.001) and with higher levels of pain ( P < 0.001) compared with the nondisabling group. The number of hours of sleep was the only risk factor that showed a trend to differ comparing the disabling neck pain group with the nondisabling neck pain one ( P = 0.057). Conclusions: Different risk factors for neck pain were detected in a very large cohort of adolescents. This study may pave the way for future prospective studies and for the development of preventive strategies for neck pain in adolescents. To claim cme credits: Complete the self-assessment activity and evaluation online at http://www.physiatry.org/JournalCME. Cme objectives: Upon completion of this article, the reader should be able to: (1) Identify different risk factors for neck pain in adolescents; (2) Determine the differences between adolescents with nondisabling neck pain and disabling neck pain; and (3) Recognize that most risk factors for disabling neck pain are still unknown, but insufficient sleep quantity could potentially contribute to the development of this condition. Level: Advanced. Accreditation: The Association of Academic Physiatrists is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians.The Association of Academic Physiatrists designates this Journal-based CME activity for a maximum of 1.0 AMA PRA Category 1 Credit(s) TM. Physicians should only claim credit commensurate with the extent of their participation in the activity
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
Poster 245: Prevalence of Low Back Pain in 7542 School Children Between 13 and 15 Years
No full textObjective: To analyze the prevalence of low back pain (LBP) in adolescent subjects. Design: Screening program with questionnaire interview. Setting: Secondary school in Padova, Italy. Participants: 7542 adolescent subjects (3777 boys, 3765 girls; age range, 13−15y; average age, 14.8±1.1y). Interventions: Not applicable. Main Outcome Measures: Prevalence of LBP and correlated factors. Results: 1180 subjects (15.6%) (429 boys, 751 girls) reported 1 or more episodes of LBP; of these, 324 (27.3%) requested further medical investigation. LBP was more frequent in girls (P<.000) and in subjects with familiarity with this problem (P<.000), with long sedentary periods during the day (P=.003), and who lacked regular sports activities (P<.000). In the subjects who practiced sports, aerobics activities correlated with LBP (P=.000), but no significant correlations were found with volleyball, basketball, soccer, and swimming, or with length of training (number hours per week) (P range, .323−.063). No significant correlation was found with height, weight, body mass index, smoking, or degree of academic gratification (P range, .323−.063). Conclusions: LBP is a frequent event in the adolescent population, particularly among girls
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
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