1,720,956 research outputs found
Hypermobility, ACL reconstruction & shoulder instability: a clinical, mechanical and histological analysis
Full text linkJoint movements are essential for the function of human body during the activities of daily
living and sports. The movement of human joints varies from normal to those which have an
increased range of joint movement (gymnasts) to those with extreme disabling laxity in patients
with a connective tissue disorder (Ehlers Danlos Syndrome).
“Hypermobility" is most commonly used to describe excessive movement. Hypermobility was
assessed by using the current criteria of the Beighton score for signs and the Brighton criteria for
symptoms of hypermobility in a group of orthopaedic patients attending the specialist knee and
shoulder injury clinics.
The Beighton score was found to be higher in patients attending for primary ACL reconstruction
(mean 2.9, p = 0.002) and revision ACL reconstruction (mean 4, p < 0.001) when compared
with the control group. Hypermobility was a risk factor for the failure of ACL reconstruction
(30% vs 0%). The mean Beighton score was higher in both the primary shoulder dislocation
group (mean difference 1.8, p=0.001) and the recurrent shoulder dislocation group (mean
difference 1.4, p=0.004). Bone defects were studied on the CT scan following shoulder
dislocations. There was no correlation between hypermobility and the bone defects. The bone
defect was a risk factor for recurrent shoulder instability (48% vs 16%).
A material testing system was used to assess the tissue laxity of discarded hamstring tendon and
shoulder capsule obtained during stabilisation procedures. The mean gradient of slope for both
tendon and capsule graphs was 23.8 (range 3.08-52.63). The tissue laxity was compared to the
Beighton score, however no correlation was detected between the Beighton score and the
gradient of the tissue laxity.
An electronic goniometer was used to measure the angle of the MCP joint of the little finger,
whilst a force plate system simultaneously measured the force required to hyperextend the MCP
joint. The little finger MCP joints of each hand were assessed in this manner in a group of
patients undergoing primary ACL reconstruction or open shoulder stabilization. The mean force
required to produce the 40 degrees angle at the little finger MCP joint was 0.04 kg with a range
from 0-0.11 kg. There was a positive correlation between the gradient of tissue laxity and the
force required to produce 40 degrees angle at the little finger of the dominant hand.
The expression of Collagen V and Small leucine rich proteoglycans (Decorin and Biglycan) was
studied in the skin, hamstring tendon and shoulder capsule of the patients described above
attending with shoulder or knee instability. These patients had different levels of hypermobility
(as assessed by the Beighton score) and symptoms of hypermobility (as assessed by the
Brighton criteria to diagnose Benign Joint Hypermobility Syndrome). The weaker tendon group
was found to have a lower mean Beighton score, while the weaker skin group had a higher mean
Beighton score.
Collagen V expression was higher in the skin dermal papillae of the weaker group.
The Beighton Scores were higher in patients with ACL and shoulder injuries. Hypermobility
was a risk factor for the failure of ACL reconstruction. There was no correlation between
hypermobility and the bone defects on the CT scan following shoulder dislocation. Bone defects
were a risk factor for recurrence. There was no correlation between the Beighton Score and the
tissue laxity. There was a correlation between the tissue laxity and the clinical assessment of
laxity at the little finger MCPJ by using a force- goniometer system. There was a correlation
between the collagen V expression in the dermal papillae of the skin and the Beighton score
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
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
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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