1,720,959 research outputs found
Injured athletes returning to sports: the rate of force development as an adjunctive predictor for decision making
No full textCorrelazione tra la capacità di salto verticale e distanza di volo nel tuffo di partenza
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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
Rate of Force Development as an Adjunctive Outcome Measure for Return-to-Sport Decisions After Anterior Cruciate Ligament Reconstruction.
No full text"Normal 0 false false false EN-US X-NONE X-NONE \/* Style Definitions *\/ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}. STUDY DESIGN:. . Observational longitudinal study.. OBJECTIVES:. . To investigate the rate of force development (RFD) to 30, 50, and 90% (RFD30, RFD50, RFD90) of maximum voluntary isometric contraction (MVIC) as an adjunct outcome measure for determining return-to-sport following an anterior cruciate ligament (ACL) reconstruction.. BACKGROUND:. . One criterion used to define full recovery following an ACL reconstruction is to be able to achieve 85% or 90% of the maximal strength of the contralateral limb. But, the time required to develop muscular strength in many types of daily and sports activities is considerably less than that required to achieve maximal strength. Therefore, in addition to maximal strength, neuromuscular functions, such as RFD, should also be considered in the definition of recovery.. METHODS:. . Forty-five male professional soccer players who underwent an ACL reconstruction were recruited. International Knee Documentation Committee form (IKDC), Tegner, KT-1000, MVIC, and RFD assessment was performed post-injury\/pre-reconstruction and at 6 and 12 months after ACL reconstruction. MVIC, RFD30, RFD50 and RFD90 testing was performed pre-injury, as part of standard pre-season assessment, and at 6 and 12 months post ACL reconstruction.. RESULTS:. . The average MVIC value 6-months post-reconstruction was 97% of the pre-injury average value. In contrast, the RFD30, RFD50, and RFD90 values were 80% (P = .04), 77% (P = .03), and 63% (P = .007), respectively, of the pre-injury values. The mean RFD values for the reconstructed knee attained or exceeded 90% of the pre-injury mean values only at the 12-month post-reconstruction assessment (RFD30, P = 0.86, RFD50, P = 0.51, RFD90, P = 0.56).. CONCLUSION:. . Despite recovery of MVIC strength very near pre-season\/injury level, significant deficits in RFD still existed at 6 months post ACL-reconstruction. RFD similar to pre-injury was achieved at 12 months post ACL-reconstruction following a rehabilitation program focusing on muscle power. These results suggest that following an ACL reconstruction, using RFD criteria may be useful as an adjunct outcome measure for return-to-sport decision.
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
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