1,720,953 research outputs found
Management of Femoral Periprosthetic Fractures: An Institutional Experience at a District General Hospital.
Full text link© Copyright 2024 Safdar et al. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.Introduction A total hip replacement is a common procedure performed by trauma and orthopaedic surgeons. Successful outcomes in arthroplasty surgery have significantly contributed to more hip replacement procedures being performed annually. This has also increased the incidence of femoral periprosthetic fractures, leading to more revision hip replacement procedures being performed. Methods This is a retrospective cohort study carried out at a district general hospital in the United Kingdom. Theatre records were reviewed from 2018 to 2022 to identify patients with a femoral periprosthetic fracture. Following the data collection, the patients were split into two groups. The first group analysed the patient outcomes through the type of surgical intervention they had, and the second group analysed the patients according to the timing of surgical intervention. Results There were 88 patients included in the study, out of which 49 had revision surgery and 39 had fixation for the femoral periprosthetic fracture. No statistically significant difference was observed in 30-day mortality and one-year mortality for the patients having revision or fixation surgery. Similarly, the results were not found to be significant in 30-day mortality and one-year mortality for the patients having surgery within 36 hours or after 36 hours of diagnosis. Conclusion Overall, the findings of this study are in keeping with the literature. Input from the specialist arthroplasty team is often required for the management of femoral periprosthetic fractures. There is no significant impact on mortality with a delay in surgical intervention for femoral periprosthetic fractures, unlike hip fractures. Medical optimisation and careful planning lead to better patient outcomes for this group of patients
Management of Ankle Fractures: Does the Timing of Surgical Intervention Have an Impact on Patient Outcomes?
Full text link© Copyright 2025 Safdar et al. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.Introduction Orthopaedic surgeons frequently manage patients presenting with an ankle fracture. It has been observed that these injuries can be present in both young and elderly patients. Surgical intervention with open reduction and internal fixation is often performed for unstable ankle fractures. Methods This study was performed at a district general hospital in the United Kingdom and is a retrospective cohort study. The electronic database was reviewed from January 2021 to December 2024 to identify and review the notes for the patients to be included in the study. After identifying the patients, they were divided into two groups. The patients who had surgical intervention in less than 10 days were allocated to the early surgery group, and the patients who had surgery at day 10 or after day 10 of the injury were allocated to the delayed surgery group. Results Overall, 96 patients were included in this study, where 29 (30.21%) had early surgical intervention and 67 (69.79%) had delayed surgical intervention. The results were not statistically significant for patient outcomes between the two groups. A correlation was observed between the age of the patients and the length of hospital stay. Conclusion At present, there is no definitive consensus with regards to the optimal timing for surgical intervention of ankle fractures. The results of this study highlight that there was no significant difference for post-operative complications between the two groups, which is consistent with the literature. A study with a larger sample size is required to analyse the long-term patient outcomes
Approaches For Sustainable Aviation
Full text linkThe ecological condition is worsening worldwide. The harmful emissions produced by aircraft are significant pollutants. Millions of gallons of fuel are burnt everyday during combustion in aircraft engines thus contributing to noxious emissions. These emissions are not only toxic and a respiratory health hazards but are increasing. It is a grave concern for which remedial measures need to be taken by all the stakeholders before the problem become intractable. So, what needs to be done to make aviation environmentally stable. A balanced and integrated policy encompassing the operational improvements, improvements in aircraft and engine technology, and use of sustainable aviation fuels is exigent for sustainable development of aviation sector and to leave a better planet for future generations. All the stakeholders – policy makers, engineers, and civil aviation authorities – should contribute to mitigate the negative impacts of aviation
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
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