Divided and subtracted MRI is a novel imaging processing technique, where the difference of two images is divided by their sum. When the sequence parameters are chosen properly, this results in images with a high T or T weighting over a small range of tissues with specific T and T values. In the T domain, we describe the implementation of the divided Subtracted Inversion Recovery Sequence (dSIR), which is used to image very small changes in T from normal in white matter.
View Article and Find Full Text PDFDelayed Post-Hypoxic Leukoencephalopathy (DPHL), or Grinker's myelinopathy, is a syndrome in which extensive changes are seen in the white matter of the cerebral hemispheres with MRI weeks or months after a hypoxic episode. T-weighted spin echo (T-wSE) and/or T-Fluid Attenuated Inversion Recovery (T-FLAIR) images classically show diffuse hyperintensities in white matter which are thought to be near pathognomonic of the condition. The clinical features include Parkinsonism and akinetic mutism.
View Article and Find Full Text PDFPrevious research on the psychological effect of job change has revealed a honeymoon-hangover pattern during the turnover process. However, there is a dearth of evidence on how individuals react and adapt to multiple job changes over their working lives. This study distinguishes adaptation to a single job change in the short term from adaptation to the process of job change in the long term.
View Article and Find Full Text PDFIntroduction: As the Covid-19 pandemic affects the world, disruptions to work routines impose a psychological burden on people, and thus can affect their job performance and well-being. We conducted an empirical study to explore the links between the experience of Covid-19 and workers' safety behaviors and well-being outcome of job satisfaction.
Method: Structural equation modelling (SEM) with a sample of 515 safety workers was conducted to simultaneously test the links among these constructs.
Although job insecurity and employability have drawn much research attention, the plausible relationships between them and how they jointly influence mental health remain unclear in the literature. We draw upon JD-R and COR theories to test and contrast three plausible relationships between job insecurity and employability, using a longitudinal sample of 1216 employees over 18 years. We further expand tests of these theoretical positions by considering temporal dynamics, using dynamic structural equation models (DSEMs) for stronger mediation evidence and latent growth models (LGMs) to compare the effects of job insecurity and employability trends in predicting the trend of mental health.
View Article and Find Full Text PDFSelf-determination theory has shaped our understanding of what optimizes worker motivation by providing insights into how work context influences basic psychological needs for competence, autonomy and relatedness. As technological innovations change the nature of work, self-determination theory can provide insight into how the resulting uncertainty and interdependence might influence worker motivation, performance and well-being. In this Review, we summarize what self-determination theory has brought to the domain of work and how it is helping researchers and practitioners to shape the future of work.
View Article and Find Full Text PDFFatigue is a critically important aspect of crew endurance in submarine operations, with continuously high fatigue being associated with increased risk of human error and long-term negative health ramifications. Submarines pose several unique challenges to fatigue mitigation, including requirements for continuous manning for long durations, a lack of access to critical environmental zeitgebers (stimuli pertinent to circadian physiology; e.g.
View Article and Find Full Text PDFUnlabelled: Background In high-income countries (HICs), migrants often have higher rates of late diagnosis of HIV than the host population. Timely HIV testing has significant implications for HIV prevention and management. Newer HIV testing approaches, namely provider-initiated testing and counselling (PITC), HIV rapid testing (HIV RT) and HIV self-testing (HIV ST), aim to reach those populations most at risk and, particularly, those who have not previously tested for HIV.
View Article and Find Full Text PDFThere has been no scarcity in the literature of suggested antecedents of employee safety behavior, and this paper brings together the disaggregated antecedents of safety behavior in the construction field. In total, 101 eligible empirical articles are obtained. Bibliometric and context analyses are combined to identify the influential journals, scholars, keywords, use of theory, research methods, and countries or regions of the empirical samples.
View Article and Find Full Text PDFPervasive human and organizational factors (HOFs) within the public sectors play a vital role in the prevention and control of epidemic (PCE). Insufficient analysis of HOFs has helped continue the use of flawed precautions. In this study, we attempted to establish a quantitative model to (a) clarify HOFs within the public sectors with regard to PCE, (b) predict the probability of relevant risk factors and an epidemic, and (c) diagnose the critical factors.
View Article and Find Full Text PDFEmployee safety citizenship behavior (SCB) is critical for workplace safety in a high-risk work environment, but few studies have addressed how safety stressors affect SCB. This study investigates the different relationships between safety stressors (safety role ambiguity, safety role conflict, and interpersonal safety conflict) and two forms of SCB (proactive and prosocial). It also examines the moderating effect of safety-specific trust (cognition- and affect-based) within these relationships.
View Article and Find Full Text PDFDrawing on Cybernetic Big Five Theory, we propose that chronic job insecurity is associated with an increase in neuroticism and decreases in agreeableness and conscientiousness (the 3 traits that reflect stability). Data collected from 1,046 employees participating in the Household, Income and Labor Dynamics in Australia survey over a 9-year period were analyzed. Job insecurity and the other job-related variables (i.
View Article and Find Full Text PDFThis cluster randomised controlled trial tested the effectiveness of a locally produced, fish-based, ready-to-use supplementary food (RUSF) to prevent growth faltering (decline in z-scores). Cambodian infants (n= 485), aged 6 to 11 months, were randomised by site to receive the RUSF, Corn-Soy Blend++ (CSB++), micronutrient powders (MNP), or no supplement (control). The intervention was for 6 months.
View Article and Find Full Text PDFThe Publisher regrets that this article is an accidental duplication of an article that has already been published in Journal of Safety Research, 68 (2019) 203-214, https://doi.org/10.1016/j.
View Article and Find Full Text PDFBackground: Rates of childhood undernutrition are persistently high in Cambodia. Existing ready-to-use supplementary and therapeutic foods (RUSFs and RUTFs) have had limited acceptance and effectiveness. Therefore, our project developed and trialled a locally-produced, multiple micronutrient fortified lipid-based nutrient supplement (LNS) with therapeutic and supplementary versions.
View Article and Find Full Text PDFSafety citizenship behaviors (SCBs) are important participative organizational behaviors that emerge in work-groups. SCBs create a work environment that supports individual and team safety, encourages a proactive management of workplace safety, and ultimately, prevents accidents. In spite of the importance of SCBs, little consensus exists on research issues like the dimensionality of safety citizenship, and if any superordinate factor level of safety citizenship should be conceptualized, and thus measured.
View Article and Find Full Text PDFIntroduction: Perceived management safety commitment as an aspect of safety climate or culture is a key influence on safety outcomes in organizations. What is unclear is how perceptions of management commitment are created by leaders.
Method: To address this gap in the literature, we position safety commitment as a leadership construct viewed from the perspectives of the leaders who experience and demonstrate it.
In Cambodia, existing food products for treating or preventing undernutrition have met with limited success. Therefore, in 2014, alternative ready-to-use foods were developed. This trial aimed to assess the acceptability of the novel ready-to-use supplementary food (RUSF) as a snack or mixed with borbor (white rice porridge), compared with corn-soy blend plus plus (CSB++) and borbor fortified with micronutrient powder (MNP).
View Article and Find Full Text PDFCycling for transportation has multiple benefits to both individuals and societies. However, in many countries, cycling rates are very low. One major deterrent is hostile or aggressive behaviours directed towards cyclists.
View Article and Find Full Text PDFBackground: The presence of landmines and explosive remnants of war (ERW) including unexploded ordnance (UXO) poses a serious public health risk for populations living in conflict-affected and contaminated areas. Current analysis, however, provides only a partial view of the burden. In this study, we examined the multivariable relationship between year of injury, activity at the time of the incident, case fatalities and casualty rates in order to provide decision-makers with a more fine-grained understanding of landmines and ERW injuries in the Lao PDR.
View Article and Find Full Text PDFIntroduction: Individual safety performance (behavior) critically influences safety outcomes in high-risk workplaces. Compared to the study of generic work performance on different measurements, few studies have investigated different measurements of safety performance, typically relying on employees' self-reflection of their safety behavior. This research aims to address this limitation by including worker self-reflection and other (i.
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