Variable speed limits: conceptual design for Queensland practice

Variable Speed Limits (VSL) is an Intelligent Transportation Systems (ITS) control tool which can enhance traffic safety and which has the potential to contribute to traffic efficiency. Queensland's motorways experience a large volume of commuter traffic in peak periods, leading to heavy recurrent congestion and a high frequency of incidents. Consequently, Queensland's Department of Transport and Main Roads have considered deploying VSL to improve safety and efficiency. This paper identifies three types of VSL and three applicable conditions for activating VSL on for Queensland motorways: high flow, queuing and adverse weather. The design objectives and methodology for each condition are analysed, and micro-simulation results are presented to demonstrate the effectiveness of VSL

Electronic health record-wide association study for atrial fibrillation in a British cohort

Background: Atrial fibrillation (AF) confers a major healthcare burden from hospitalisations and AF-related complications, such as stroke and heart failure. We performed an electronic health records-wide association study to identify the most frequent reasons for healthcare utilization, pre and post new-onset AF. Methods: Prospective cohort study with the linked electronic health records of 5.6 million patients in the United Kingdom Clinical Practice Research Datalink (1998–2016). A cohort study with AF patients and their age-and sex matched controls was implemented to compare the top 100 reasons of frequent hospitalisation and primary consultation. Results: Of the 199,433 patients who developed AF, we found the most frequent healthcare interactions to be cardiac, cerebrovascular and peripheral-vascular conditions, both prior to AF diagnosis (41/100 conditions in secondary care, such as cerebral infarction and valve diseases; and 33/100 conditions in primary care), and subsequently (47/100 conditions hospital care and 48 conditions in primary care). There was a high representation of repeated visits for cancer and infection affecting multiple organ systems. We identified 10 novel conditions which have not yet been associated with AF: folic acid deficiency, pancytopenia, idiopathic thrombocytopenic purpura, seborrheic dermatitis, lymphoedema, angioedema, laryngopharyngeal reflux, rib fracture, haemorrhagic gastritis, inflammatory polyneuropathies. Conclusion: Our nationwide data provide knowledge and better understanding of the clinical needs of AF patients suggesting: (i) groups at higher risk of AF, where screening may be more cost-effective, and (ii) potential complications developing following new-onset AF that can be prevented through implementation of comprehensive integrated care management and more personalised, tailored treatment.</p

Developing sustainable workplace through leadership: Perspectives of transformational leadership and of organizational citizenship behavior

The objective of this study was to investigate the leadership style of the supervisor to develop the organization's sustainable workplace of and the extra-role behavior of employees (i.e., OCB). An organizational context of the immigration officer is explored by using the data collected from a survey of 453 immigration officers from 26 immigration officer teams in Taiwan. This study has verified the transformational leadership and organizational commitment that they have positive effect on organizational citizenship behavior (OCB) of the immigration officers. Moreover, it showed that the organizational climate has a context effect on organizational commitment and OCB. Furthermore, the results of this study have shown that an aggregated transformational leadership has cross-level interactions on OCB. This study also found that the transformational leadership has strong effect on organizational commitment and OCB. This study adopts a cross-level study taking organizational environmental factors and cross-level interactions as research considerations. Because of the focus on group-level impact, the research methodology can apply the supervisor's leadership style and the organizational climate to measure whether the immigration officers have a high degree of organizational commitment and influence their OCB performance across levels. The organizational commitment of the immigration officers and their individual OCB performance could be improved by converging the organizational context effect of aggregated transformational leadership and organizational climate. This study found that the application of the transformational leadership is extremely helpful for an organization to develop sustainable workplace and extra-role behavior of employees