Using patient shielding – What is the risk?

2021 ◽  
pp. 20210701
Author(s):  
Peter Hiles

The practice of placing radiation protective shielding on patients (‘in contact’) in order to reduce the dose to certain radiosensitive organs for diagnostic X-ray examination, has been employed for decades. However, there has been a growing body of evidence that this practice is often ineffective or even counterproductive and the use of such shielding can also overemphasise the hazards of ionising radiation in the public mind. This has led to a growing disparity in the application of patient contact shielding and culminated in several professional bodies issuing guidance and statements to provide a consistent approach to patient contact shielding. This, in turn, has led to a healthy discussion and re-evaluation of when and why patient contact shielding should be used, where the main issue centres around the criteria used to arrive at the recommendations. The decision process involves considering, among others, the reported effectiveness of the shielding and a subjective assessment of the subsequent risks from their use. In order to improve the transparency of these recommendations, it is therefore suggested that a threshold for dose and/or risk should be clearly stated, below which no protection is required. A suggested starting point for defining this threshold is discussed. This would enhance uniformity of application and provide clarity for staff, patients and the public. It would also ensure that any future research in this area could be easily incorporated into the general guidance.

2020 ◽  
Vol 24 (8) ◽  
pp. 1921-1941
Author(s):  
Yakub Karagoz ◽  
Naomi Whiteside ◽  
Axel Korthaus

Purpose This paper aims to extend the theory relating to knowledge sharing barriers and enablers in the public sector information and communication technology (ICT) project context. Design/methodology/approach A case study method was used whereby project managers from each of the seven departments of the Victorian Public Sector in Australia were interviewed about their knowledge sharing practice. A semi-structured interview instrument based on Riege’s (2005) barrier framework was used to explore the barriers to knowledge sharing that they experienced as part of their work. Findings The study found that many of Riege’s (2005) barriers did not apply in the public sector ICT project environment, demonstrating that context matters. In addition, five enablers were identified, resulting in a new model of enablers and barriers to knowledge sharing in public sector ICT projects. Research limitations/implications This study focuses on a single case, the Victorian Public Sector, and consequently the results are not generalisable. Future research should explore the applicability of the model in other public sector ICT project contexts. Practical implications The study highlights the relationship between knowledge sharing and the project manager and the role it plays in project delivery. The model presented provides a starting point for public sector practitioners to develop their knowledge sharing practice, potentially enhancing project outcomes in the process. Originality/value This study examines barriers to knowledge sharing in an under-researched context, that of the public sector ICT project environment. It builds on current theory and provides insights for practitioners in the public sector.


Author(s):  
Marlene Kunst

Abstract. Comments sections under news articles have become popular spaces for audience members to oppose the mainstream media’s perspective on political issues by expressing alternative views. This kind of challenge to mainstream discourses is a necessary element of proper deliberation. However, due to heuristic information processing and the public concern about disinformation online, readers of comments sections may be inherently skeptical about user comments that counter the views of mainstream media. Consequently, commenters with alternative views may participate in discussions from a position of disadvantage because their contributions are scrutinized particularly critically. Nevertheless, this effect has hitherto not been empirically established. To address this gap, a multifactorial, between-subjects experimental study ( N = 166) was conducted that investigated how participants assess the credibility and argument quality of media-dissonant user comments relative to media-congruent user comments. The findings revealed that media-dissonant user comments are, indeed, disadvantaged in online discussions, as they are assessed as less credible and more poorly argued than media-congruent user comments. Moreover, the findings showed that the higher the participants’ level of media trust, the worse the assessment of media-dissonant user comments relative to media-congruent user comments. Normative implications and avenues for future research are discussed.


2020 ◽  
Author(s):  
S. Economides ◽  
C.J. Hourdakis ◽  
C. Pafilis ◽  
G. Simantirakis ◽  
P. Tritakis ◽  
...  

This paper concerns an analysis regarding the performance of X-ray equipment as well as the radiological safety in veterinary facilities. Data were collected from 380 X-ray veterinary facilities countrywide during the on-site regulatory inspections carried out by the Greek Atomic Energy Commission. The analysis of the results shows that the majority of the veterinary radiographic systems perform within the acceptable limits; moreover, the design and shielding of X-ray rooms as well as the applied procedures ensure a high level of radiological safety for the practitioners, operators and the members of the public. An issue that requires specific attention in the optimization process for the proper implementation of veterinary radiology practices in terms of radiological safety is the continuous training of the personnel. The above findings and the regulatory experience gained were valuable decision-making elements regarding the type of the regulatory control of veterinary radiology practices in the new radiation protection framework.


2016 ◽  
Vol 30 (2) ◽  
pp. 255-275 ◽  
Author(s):  
Jean Bédard ◽  
Paul Coram ◽  
Reza Espahbodi ◽  
Theodore J. Mock

SYNOPSIS The Public Company Accounting Oversight Board (PCAOB), the International Auditing and Assurance Standards Board (IAASB), and the U.K. Financial Reporting Council (FRC) have proposed or approved standards that significantly change the independent auditor's report. These initiatives require the auditor to make additional disclosures intended to close the information gap; that is, the gap between the information users desire and the information available through the audited financial statements, other corporate disclosures, and the auditor's report. They are also intended to improve the relevancy of the auditor's report. We augment prior academic research by providing standard setters with an updated synthesis of relevant research. More importantly, we provide an assessment of whether the changes are likely to close the information gap, which is important to financial market participants and other stakeholders in the audit reporting process. Also, we identify areas where there seems to be a lack of sufficient research. These results are of interest to all stakeholders in the audit reporting process, as the changes to the auditor's report are fundamental. Additionally, our summaries of research on the auditor's report highlight where there is limited research or inconsistent results, which will help academics identify important opportunities for future research.


2005 ◽  
Vol 17 (1) ◽  
pp. 1-22 ◽  
Author(s):  
Elizabeth Dreike Almer ◽  
Julia L. Higgs ◽  
Karen L. Hooks

The behavior of auditors in the context of their employment by public accounting firms has received significant attention in the accounting literature. The current article extends this literature by providing a framework that identifies what auditing professionals contribute and receive as a result of their work efforts, as well as related influences. Using agency theory modified with fundamental ideas from the sociology of professions literature, we develop a model of the auditor-public accounting firm employment relationship. This framework is grounded in a timely, contextually rich description of the public accounting work environment, and the pressures and incentives faced by auditors. Propositions for future research are suggested that arise from understanding the auditor-firm relationship.


Author(s):  
Jens K. Roehrich ◽  
Beverly B. Tyler ◽  
Jas Kalra ◽  
Brian Squire

Contracts are a formal mode of governing interorganizational relationships. They specify the terms and conditions of the agreement between two parties, interpret and adapt the relevant legal and industrial norms, serve as framing devices, and establish the rules and norms underpinning the relationship. The objective of this chapter is to synthesize the extant literature on interorganizational contracting to guide future research and practice. This chapter focuses on the three phases of contracting: (1) designing the contracting portfolio; (2) negotiating initial contracts; and (3) managing the relationship using contracts. The chapter explores the key decisions in each phase and the criteria involved in making these decisions. In doing so, it draws on existing research and theoretical frameworks that have contributed to the development of the contracting literature. The chapter also identifies some important and interesting directions for future contracting research and offers suggestions regarding how selected theoretical lenses might guide these endeavors. The principal conclusion is that while the existing research has primarily focused on the structural issues guiding contracting design, a more processual, social, and behavioral focus is required in future developments of the contracting literature.


2019 ◽  
Vol 13 (1) ◽  
pp. 88-102
Author(s):  
Sajeev Abraham George ◽  
Anurag C. Tumma

Purpose The purpose of this paper is to benchmark the operational and financial performances of the major Indian seaports to help derive useful insights to improve their performance. Design/methodology/approach A two-stage data envelopment analysis (DEA) methodology has been used with the help of data collected on the 13 major seaports of India. The first stage of the DEA captured the operational efficiencies, while the second stage the financial performance. Findings A window analysis over a period of three years revealed that no port was able to score an overall average efficiency of 100 per cent. The study identified the better performing units among their peers in both the stages. The contrasting results of the study with the traditional operational and financial performance measures used by the ports helped to derive useful insights. Research limitations/implications The data used in the study were majorly limited to the available sources in the public domain. Also, the study was limited to the major seaports which are under the Government of India and no comparisons were carried out with other local or international ports. Practical implications There is a need to prioritize investments and improvement efforts where they are most needed, instead of following a generalized approach. Once the benchmark ports are identified, the port authorities and other relevant stakeholders should work in detail on the factors causing inefficiencies, for possible improvements in performance. Originality/value This paper carried out a two-stage DEA that helped to derive useful insights on operational efficiency and financial performance of the India seaports. A combination of the financial and operational parameters, along with a comparison of the DEA results with the traditional measures, provided a different perspective on the Indian seaport performance. Considering the scarcity of research papers reported in the literature on DEA-based benchmarking studies of seaports in the Indian context, it has the potential to attract future research in this field.


2021 ◽  
pp. 028418512110198
Author(s):  
Frank Mosler ◽  
Johannes K Richter ◽  
Marc Schindewolf ◽  
Nando Mertineit ◽  
Hendrik von Tengg-Kobligk ◽  
...  

X-ray contrast media have been reported to have inhibitory effects on bacterial growth. Despite its potentially beneficial effect on patients, these features of contrast media have received relatively little attention in the medical literature in the past decades. The aim of this review is to evaluate the literature concerning the bactericidal and bacteriostatic effects of X-ray contrast media, specifically if there is a known difference concerning these effects between ionic and non-ionic contrast media. Systematic literature review was performed for the years of publication between 1911 and 2019. Since the publication of Grossich in 1911, the effect of iodine on the treatment of superficial infections in surgical procedures has been established clinical knowledge. Bacteriostatic and bactericidal effects of ionic X-ray contrast media are well established. However, non-ionic contrast agents have been the subject of little research in this respect. In past decades, the hypothesis emerged in the literature that mainly the concentration of free iodine might be responsible for any bacteriostatic or bactericidal effect of ionic X-ray contrast media. Nowadays, however, only non-ionic contrast media are used. The question regarding the mechanism and magnitude of bacteriostatic or bactericidal effects of these, non-ionic contrast media, could not be answered conclusively from this review. Non-ionic contrast media could be used intentionally when a local antibacterial effect is intended (e.g. in percutaneous abscess drainage), as well as to reduce the overall dose of antibiotics administered to a patient. Thus, this question remains relevant and might constitute the area of future research.


Robotics ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 53
Author(s):  
Luiz F. P. Oliveira ◽  
António P. Moreira ◽  
Manuel F. Silva

The development of robotic systems to operate in forest environments is of great relevance for the public and private sectors. In this sense, this article reviews several scientific papers, research projects and commercial products related to robotic applications for environmental preservation, monitoring, wildfire firefighting, inventory operations, planting, pruning and harvesting. After conducting critical analysis, the main characteristics observed were: (a) the locomotion system is directly affected by the type of environmental monitoring to be performed; (b) different reasons for pruning result in different locomotion and cutting systems; (c) each type of forest, in each season and each type of soil can directly interfere with the navigation technique used; and (d) the integration of the concept of swarm of robots with robots of different types of locomotion systems (land, air or sea) can compensate for the time of executing tasks in unstructured environments. Two major areas are proposed for future research works: Internet of Things (IoT)-based smart forest and navigation systems. It is expected that, with the various characteristics exposed in this paper, the current robotic forest systems will be improved, so that forest exploitation becomes more efficient and sustainable.


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