Working Time Society consensus statements: Regulatory approaches to reduce risks associated with shift work—a global comparison

A large number of workers worldwide engage in shift work that can have significant influences upon the quality of working life. For most jurisdictions, setting and enforcing appropriate policies, regulations, and rules around shift work is considered essential to (a) prevent potentially negative consequences of shift work and (b) to improve worker health and well-being. However, the best ways to do this are often highly contested theoretical spaces and often culturally and historically bound. In this paper, we examine the regulatory approaches to regulating shift work in four different regions: Europe, North America, Australasia, and East Asia (Japan, China, and Korea). Despite the fact that social and cultural factors vary considerably across the regions, comparing regulatory frameworks and initiatives in one region can be instructive. Different approaches can minimally provide a contrast to stimulate discussion about custom and practice and, potentially, help us to develop new and innovative models to improve worker well-being and organizational productivity simultaneously. In this paper, our goal is not to develop or even advocate a “perfect” sets of regulations. Rather, it is to compare and contrast the diversity and changing landscape of current regulatory practices and to help organizations and regulators understand the costs and benefits of different approaches. For example, in recent years, many western countries have seen a shift away from prescriptive regulation toward more risk-based approaches. Advocates and critics vary considerably in what drove these changes and the benefit-cost analyses associated with their introduction. By understanding the different ways in which shift work can be regulated, it may be possible to learn from others and to better promote healthier and safer environments for shift-working individuals and workplaces

Observation of the Gamma-Ray Binary HESS J0632+057 with the HESS, MAGIC, and VERITAS Telescopes

The results of gamma-ray observations of the binary system HESS J0632 + 057 collected during 450 hr over 15 yr, between 2004 and 2019, are presented. Data taken with the atmospheric Cherenkov telescopes H.E.S.S., MAGIC, and VERITAS at energies above 350 GeV were used together with observations at X-ray energies obtained with Swift-XRT, Chandra, XMM-Newton, NuSTAR, and Suzaku. Some of these observations were accompanied by measurements of the Hα emission line. A significant detection of the modulation of the very high-energy gamma-ray fluxes with a period of 316.7 4.4 days is reported, consistent with the period of 317.3 0.7 days obtained with a refined analysis of X-ray data. The analysis of data from four orbital cycles with dense observational coverage reveals short-timescale variability, with flux-decay timescales of less than 20 days at very high energies. Flux variations observed over a timescale of several years indicate orbit-to-orbit variability. The analysis confirms the previously reported correlation of X-ray and gamma-ray emission from the system at very high significance, but cannot find any correlation of optical Hα parameters with fluxes at X-ray or gamma-ray energies in simultaneous observations. The key finding is that the emission of HESS J0632 + 057 in the X-ray and gamma-ray energy bands is highly variable on different timescales. The ratio of gamma-ray to X-ray flux shows the equality or even dominance of the gamma-ray energy range. This wealth of new data is interpreted taking into account the insufficient knowledge of the ephemeris of the system, and discussed in the context of results reported on other gamma-ray binary systems