1,720,954 research outputs found
The determination of the need for after- hours diagnostic radiological reporting in emergency departments
Full text linkThesis (MSc (Radiography))--Cape Peninsula University of Technology, 2019Introduction:
After-hours diagnostic imaging is essential in the majority of large public hospitals, as it plays a vital role in the treatment and management of patients. Radiologists are not always available after hours to provide reports on radiographic images since, nationally and globally, there is a shortage of these professionals. Radiographic images are frequently interpreted by emergency physicians after hours. Thus, while diagnostic imaging represents an essential component in patient care (including management and treatment), according to the literature, a significant cause of clinical error occurs through the misinterpretation of radiographic images by emergency physicians. The aim of this study was to determine emergency physicians’ views on whether there was a need for an after-hours diagnostic radiology reporting service in emergency departments at some public hospitals, in the Durban Metropole. It is important to note that in addition to the above, this study calculated the number of radiographic examinations performed after-hours, and the number that was reported by the radiologist during office hours, since there was no radiology cover after hours.
Methods:
A descriptive cross-sectional quantitative survey design was employed using a self-administered questionnaire as a data collection instrument completed by emergency physicians at four public hospitals. In addition, additional data was collected to determine the number of radiographic examinations that had been performed after hours, at the selected four public hospitals over a period of three months, as well as the number of radiographic examinations that was reported on. This enabled the authors to determine the number of radiographic examinations that went unreported during this study period.
Results:
A total of 39 emergency physicians participated in the survey, with a mean and median age of 39.46 and 38 years, respectively (SD = 9.11 years). The results of this study showed that between 0.1% and 0.6% of radiographic examinations performed after hours were reported on by radiologists during office hours, for this study period. This implies that less than 1% of all examinations produced after hours at the four public hospitals, received a radiology report. Emergency physicians felt that the interpretation of images took up valuable time. The survey found that there was near total consensus amongst respondents on whether they prefer after-hours reporting to be performed by a radiologist as 46.2% (n = 18) of the respondents strongly agreed and 41.0% agreed (n = 16). Furthermore, a total of 35.9% (n=14) of respondents agreed and 43.6% (n=17) strongly agreed, that having a reporting radiographer reporting on radiographic images after-hours, would benefit patient flow. The survey also found that 92% of the sampled emergency physicians agreed (59.0% strongly agreed and 33.3% agreed, respectively) that there was a need for further training in the interpretation of radiographic images.
Discussion:
From the above results, it is evident that since the majority of radiographic examinations went unreported after hours, the task to interpret the radiographic images is left to the emergency physicians as part of their patient management. Conceivably, this added image interpretation results in a further increase in the workload of emergency physicians. It is therefore not surprising that emergency physicians preferred that after-hours reporting of radiographic images be done by radiologists. According to the literature, reporting radiographers also play a role in alleviating the workload of emergency physicians and improving patient flow, by providing a report for the radiographic images during after-hours. Thus, reporting radiographers afford emergency physicians additional time to concentrate on patient treatment, resulting in faster patient throughput. Reporting on radiographic images is not yet included in the scope of the South African radiographer. The findings of this study, though, suggested that there was a need for emergency physicians to undergo training in the interpretation of radiographic images.
Conclusion:
The study recommends that an after-hours reporting service be considered for the four public hospitals concerned. It is recommended that the heads of the emergency and radiology departments further consider offering courses on radiographic image interpretation for emergency physicians
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
Determining the need for after-hours diagnostic radiological reporting in emergency departments at public hospitals in South Africa: Perceptions of emergency physicians in KwaZulu-Natal
No full textEmergency departments in South African public hospitals have a high patient load after hours, with inadequate numbers of health care professionals available to satisfy patient influx. In addition, there is often no provision of after-hours diagnostic reporting services in public hospitals, to an extent that the emergency physician
is responsible for interpreting all radiographic images requested themselves. Emergency physicians, in this study, can be described as any medical doctor registered with the Health Professions Council of South Africa
and working in the emergency department as a registrar or consultant physician because there were no physicians specialized in emergency medicine working at the hospitals selected for this study
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
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