1,720,955 research outputs found
Etablierung einer multizentrischen Datenbank – Epidemiologie und klinisches Outcome von Tibiakopffrakturen
Get PDFThe primary objective of the first study was to provide updated epidemiological data on tibial plateau fractures (TPF) in Germany. For this purpose, all TPF treated at the LMU Clinic over the past ten years (from January 2011 to Decem- ber 2020) were retrospectively analyzed regarding various epidemiological data. This analysis resulted in a database comprising 607 cases of TPF, which served as the foundation for numerous studies. This established database now provides the basis for prospective data collection on TPF across multiple regional trauma centers. The focus of the first study was twofold: first, to describe and analyze changes in fracture incidence in Germany for the first time, and second, to examine trends regarding fracture morphology, patients age, injury mechanism, and imaging modalities used for diagnosis.
The main finding of the study is a significant increase in the incidence of TPF by 68% over the last decade. By the end of the study period, the incidence of TPF in Germany was reported as 23,4 per 100,000 peoples per year in 2020. Notably, the incidence in females (12,1/100,000) was significantly higher than in males (8,5/100,000) over the decade. Furthermore, there was a notably higher fracture incidence among elderly females (76-85 years), which was discussed in the con- text of osteoporosis. Regarding imaging techniques, it was demonstrated that computed tomography (CT) has become the standard modality for fracture diagnosis, with 91% of patients receiving CT imaging. In contrast, only 22% of patients underwent magnetic resonance imaging (MRI), which is discussed in more detail in the second study. Analysis of injury mechanisms revealed the following: the primary cause of injury across the patient cohort was falls, accounting for 32,9%. A closer look at young patients, those younger than the average cohort age (52,9 years), showed that most were male, and that the trauma mechanism was classified as “high-energy” (e.g., traffic accidents). In contrast, the older patient cohort was predominantly female, with “low-energy” trauma (e.g., falls) being the primary cause. Comparative analysis over the decade indicated that high-energy trauma mechanisms decreased overall, while low-energy mechanisms became more preva- lent. The second study aimed to analyze risk factors of the development of post-traumatic osteoarthritis (PTOA). This objective arose from the findings of the first study, which identified a significant increase in fracture incidence and noted that MRI is not a standard diagnostic tool for TPF. Additionally, other studies have shown high rates of PTOA following TPF. This led to a focus on a key risk factor for PTOA: post-traumatic knee instability. To investigate this, the database created in the first study was searched based on specific inclusion criteria to clinically assess knee instability in 54 patients. The main result of the study was a significant difference in anterior-posterior tibial translation as well as in tibial translation during internal rotation in the fractured knee compared to the healthy knee. Additionally, the injured knee showed signif- icant restrictions in range of motion. In conclusion, the study indicates that surgically treated TPF exhibit significant knee instability. Since knee instability is a known risk factor for PTOA, these findings explain the high rates of PTOA observed following tibial plateau fractures
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
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
- …
