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Purpose: To assess the potential of workplace support to protect public health equity workers against job burnout and to identify key workplace support components. Description: This mixed-methods, explanatory sequential study analyzed survey and interview data collected between August 2020 and June 2021. Participants included governmental and non-governmental public health employees whose programs largely focus on Maternal and Child Health populations and who reported that their jobs involved working to reduce health inequities ("equity work"). Regression analysis tested the effect of emotional labor on job burnout, and whether workplace support modified that effect. Qualitative analysis of interview transcripts explored possible components of needed workplace support. Assessment: Emotional labor was positively associated with job burnout (p <.001), and there was a significant negative interaction between emotional labor and workplace support, meaning workplace support appeared to reduce the effect of emotional labor on burnout (p =.036). Qualitative analysis identified four support components: peer-to-peer mentoring connections, workplace accommodations, engaged and empathetic supervision, and mental health resources. Conclusion: Workplace support is associated with reduced job burnout for public health equity workers, especially those whose jobs involve high levels of emotional labor. Few public health employers are providing needed emotional supports for their equity workers, but certain supports appear to be helpful in reducing job burnout. Significance: Stressful work environments can impact emotional well-being and lead to job burnout. Since the 1980s, research has explored emotional labor (i.e., self-management of emotions for effective job performance) as a contributor to burnout, including new studies in the healthcare and public health sectors. The recent focus of MCH on equity requires workers to address emotion-laden topics with partners and the public. Past research had not focused on the public health sector and had emphasized personal coping strategies. Our study adds to the literature by examining emotional labor in MCH equity work and considering the protective potential of workplace supports. [ABSTRACT FROM AUTHOR]

Workplace burnout has strong negative consequences for both workers and organisations. Following Self-determination theory (SDT), we hypothesised that workplace materialism – the relative importance given to extrinsic (fame, money, image) versus intrinsic (relationships, pro-sociality, self-development) work goals – is a key antecedent of burnout. The relationship between work goals and burnout is expected to be mediated by lower satisfaction and higher frustration of basic psychological needs for autonomy, competence and relatedness. Extending previous correlational evidence, we tested the prospective relationships among these constructs using a three-wave longitudinal design among a large sample of Chilean workers (N = 1841). Both individual-level (cross-lagged panel model) and within-person (trait-state-occasion model) longitudinal analyses supported that materialism predicted subsequent levels of burnout through higher need frustration. Need satisfaction did not predict subsequent burnout in either analysis. Additionally, we found that burnout predicted subsequent need frustration, suggesting a dangerous reciprocal relationship between both constructs. Our findings support SDT and highlight the potential risks of emphasising materialism in organisational settings. Indeed, contrary to common organisational practices, our findings suggest that burnout can be reduced by lowering the importance of extrinsic goals, fostering intrinsic goals, and building working environments to avoid frustrating basic psychological needs. [ABSTRACT FROM AUTHOR]

Background: Because of the close working environment, military personnel are exposed to respiratory disease, often greater than the civilian sector During the COVID-19 pandemic (April 2021), an Oracle short message service (SMS)--based, mobile phone, daily COVID-19 health monitoring system was employed to monitor and protect the health of military members participating in a large-scale, 17-day exercise in the south-eastern United States Methods: Military member demographic and self-reported mobile phone health monitoring system data were aggregated and analysed descriptively Bivariable and logistic regression methods were employed to assess health monitoring system participation differences Results: A total of 419/529 (79%) military members joined and used the system Military members reported 4666 daily health status updates Compared with enlisted members, officers were less likely to participate in health monitoring (odds ratio [OR] 3 5, 95% confidence interval [CI] 1 9, 6 3, P<0 0001) Compared with logistics & maintenance, all other career fields were less likely to participate in the health monitoring system program (OR 2 8, 95% CI 1 6, 4 8, P=0 0002) Compared with Wing A, all other Wings and support staff personnel were less likely to participate (OR 43 3, 95% CI 5 9, 318 4, P=0 002) The drop-out proportion was 0 2% Conclusions: We found significantly higher COVID-19 health monitoring system participation among enlisted personnel, members from Wing A, and Logistics and Maintenance personnel Participation in the health monitoring system enabled medical staff to recognise symptoms associated with respiratory illness early during a large-scale military exercise [ABSTRACT FROM AUTHOR]

Hearing protection device (HPD) fit-testing is a recommended best practice for hearing conservation programs as it yields a metric of the amount of attenuation an individual achieves with an HPD. This metric, the personal attenuation rating (PAR), provides hearing health care, safety, and occupational health personnel the data needed to select the optimal hearing protection for the occupational environment in which the HPD will be worn. Although commercial-off-the-shelf equipment allows the professional to complete HPD fit tests in the field, a standard test methodology does not exist across HPD fit-test systems. The purpose of this study was to compare the amount of attenuation obtained using the "gold standard" laboratory test (i.e., real-ear attenuation at threshold [REAT]) and three commercially available HPD fit-test systems (i.e., Benson Computer Controlled Fit Test System [CCF-200] with narrowband noise stimuli, Benson CCF-200 with pure tone stimuli, and Michael and Associates FitCheck Solo). A total of 57 adults, aged 18 to 63, were enrolled in the study and tested up to seven earplugs each across all fit-test systems. Once fitted by a trained member of the research team, earplugs remained in the ear throughout testing across test systems. Results revealed a statistically significant difference in measured group noise attenuation between the laboratory and field HPD fit-test systems (p <.0001). The mean attenuation was statistically significantly different (Benson CCF-200 narrowband noise was +3.1 dB, Benson CCF-200 pure tone was +2.1 dB, and Michael and Associates FitCheck Solo was +2.5 dB) from the control laboratory method. However, the mean attenuation values across the three experimental HPD fit-test systems did not reach statistical significance and were within 1.0 dB of one another. These findings imply consistency across the evaluated HPD fit-test systems and agree with the control REAT test method. Therefore, the use of each is acceptable for obtaining individual PARs outside of a laboratory environment. [ABSTRACT FROM AUTHOR]

The NIOSH Pocket Guide to Chemical Hazards is a trusted resource that displays key information for a collection of chemicals commonly encountered in the workplace. Entries contain chemical structures—occupational exposure limit information ranging from limits based on full-shift time-weighted averages to acute limits such as short-term exposure limits and immediately dangerous to life or health values, as well as a variety of other data such as chemical-physical properties and symptoms of exposure. The NIOSH Pocket Guide (NPG) is available as a printed, hardcopy book, a PDF version, an electronic database, and a downloadable application for mobile phones. All formats of the NIOSH Pocket Guide allow users to access the data for each chemical separately, however, the guide does not support data analytics or visualization across chemicals. This project reformatted existing data in the NPG to make it searchable and compatible with exploration and analysis using a web application. The resulting application allows users to investigate the relationships between occupational exposure limits, the range and distribution of occupational exposure limits, and the specialized sorting of chemicals by health endpoint or to summarize information of particular interest. These tasks would have previously required manual extraction of the data and analysis. The usability of this application was evaluated among industrial hygienists and researchers and while the existing application seems most relevant to researchers, the open-source code and data are amenable to modification by users to increase customization. [ABSTRACT FROM AUTHOR]

Outdoor workers perform tasks throughout the year that expose them to solar ultraviolet radiation (UVR) and increase their risk of UVR-related adverse health effects. Multiple studies on occupational solar UVR exposures during summer have been published but similar investigations during other seasons are limited. The purpose of this study was to assess solar UVR exposure in an eastern North Carolina university setting during all four seasons (fall, winter, spring, and summer) to assess risk for outdoor workers, particularly groundskeepers, throughout the year. UVR effective irradiance (UVReff) was measured by area monitoring using a digital data-logging radiometer and a weatherproof UVR detector for 164 days from October 2020 to October 2021. Results showed that hourly and daily mean UVReff exceeded the 1-hr and 8-hr ACGIH Threshold Limit Values (TLVs), respectively, in all months and seasons at varying degrees. Winter had the lowest mean UVReff (3.4 × 10−3 ± 1.7 × 10−3 mW/cm2), but 91.1% and 100% of the hourly and daily UVReff measurements, respectively, still exceeded the TLVs. This study demonstrates the risk of overexposure to solar UVR among outdoor workers during cold months and seasons and the importance of implementing UVR protection throughout the year. [ABSTRACT FROM AUTHOR]

Among the first 20 high-priority chemical substances selected by USEPA to undergo risk evaluation as part of the Toxic Substances Control Act, as amended by the Frank R. Lautenberg Chemical Safety for the 21st Century Act of 2016 is 1,3-butadiene (1,3-BD). Because much of the literature related to occupational exposure to 1,3-BD is associated with the use of the substance in synthetic rubber production and few data have been published for exposures to 1,3-BD manufacturing workers, existing industrial hygiene data collected at facilities where the substance is manufactured or processed as a reactant were compiled and analyzed. The dataset was comprised of personal air samples collected between 2010 and 2019 at facilities located throughout the United States and was compiled into a single database using a uniform data collection template. Data designated by the companies as full-shift were stratified by job group and one of three operational conditions of the workplace: routine, turnaround, and non-routine. Data designated by the companies as short-term and task-level were stratified by task description, sample duration, and operational condition. The final aggregated database contained a total of 5,676 full-shift personal samples. Mean concentrations of 1,3-BD for the job groups ranged from 0.012 ppm to 0.16 ppm. High-end estimates of 1,3-BD air concentrations for the job groups under routine operations ranged from 0.014 ppm to 0.23 ppm. The aggregated database also included 1,063 short-term and task-level personal samples. For short-term samples (< =15 min), mean concentrations ranged from 0.49 ppm to 3.9 ppm, with the highest concentrations observed for the cleaning and maintaining equipment tasks. For task samples with durations greater than 15 min, mean concentrations ranged from 0.49 to 3.6 ppm, with the highest concentrations observed for the unloading and loading task. In addition to the personal air sampling records, information on the use of PPE during various tasks was compiled and analyzed. This data set provides robust quantitative air concentration data and exposure control information for which occupational exposures to 1,3-BD in the Manufacturing and Processing as a Reactant condition of use can be assessed. [ABSTRACT FROM AUTHOR]

Due to long-standing federal restrictions on cannabis-related research, the implications of cannabis legalization on traffic and occupational safety are understudied. Accordingly, there is a need for objective and validated measures of acute cannabis impairment that may be applied in public safety and occupational settings. Pupillary response to light may offer an avenue for detection that outperforms typical sobriety tests and tetrahydrocannabinol concentrations. We developed a video processing and analysis pipeline that extracts pupil sizes during a light stimulus test administered with goggles utilizing infrared videography. The analysis compared pupil size trajectories in response to a light for those with occasional, daily, and no cannabis use before and after smoking. Pupils were segmented using a combination of image pre-processing techniques and segmentation algorithms which were validated using manually segmented data and found to achieve 99% precision and 94% F-score. Features extracted from the pupil size trajectories captured pupil constriction and rebound dilation and were analyzed using generalized estimating equations. We find that acute cannabis use results in less pupil constriction and slower pupil rebound dilation in the light stimulus test. [ABSTRACT FROM AUTHOR]

The mining sector actively seeks to improve operational processes and manage residual materials, especially in areas used for heap leaching disposal. The flowability of residues following deposition can have an impact on storage capacity, productivity, and workers' safety. In this study, an artificial neural network (ANN) approach is applied to evaluate the accuracy of three models in predicting the flowability of spent heap leach when it is discharged into the dump, considering three or five segregation categories. The models with five categories exhibited the highest level of accuracy, with learning responses ranging from 72% to 78% and predictions from 88% to 96%. These indicate that ANN models have the potential to be a decision-making tool for the discharge strategy in the dump. Modules containing lithologies such as clays and phyllosilicates exhibited increased susceptibility to separation due to their water retention capacity, which negatively impacted their permeability and conductivity. The decomposition of iron oxide, along with clays and low hardness, led to the formation of fines, limited permeability, and inadequate solution drainage. Rock competence and low formation of fines provide good permeability, and better drainage conditions for the solution, and help maintain the stability of the spent heap leach in the dump. [ABSTRACT FROM AUTHOR]

Intense burning phenomena (fire disasters) need to be prevented in the combustible gas utilization and transportation processes to ensure industrial safety. Nonmetallic spherical spacers (NSSs) have been investigated and applied in lots of explosive atmospheres to prevent explosion execution in a confined space. In this work, a novel fuzzy-based analytic hierarchy process (FAHP) is developed to take into account the uncertainty in decision-making and effectively solve the problem of factor weight allocation in multi-objective optimization. Optimal Latin Hypercube Design (Opt LHD), Chebyshev Orthogonal Polynomials (COP), and Adaptive Simulated Annealing (ASA) were combined. A multi-objective optimization method is proposed for the structural parameter optimization problem on NSSs in order to achieve conflicting multiple-objective optimization of low displacement rate and minimal deformation. That is to say, the small volume (low displacement rate) and high explosion-suppression performance (minimal deformation) of NSSs were optimized simultaneously. The results show that, compared with the original NSS model's deformation (2.85 mm) and displacement rate (3.63%), the optimized NSSs with weight allocation had optimized the deformation by 12.98% and displacement rate by 6.1%. Compared with the optimized design model of NSSs without weight allocation with a deformation of 2.75 mm and a displacement rate of 3.48%, the deformation has been optimized by 9.82%, and the displacement rate has been optimized by 2.0%. It was verified that the proposed method is effective. At the same time, it was verified that the suppression effect of NSSs can be enhanced by changing the shape of the NSS spacer reasonably by experimental verification. [ABSTRACT FROM AUTHOR]

As environmental conservation and sustainability gain prominence globally, modern timber structures are receiving increased focus. Nonetheless, the combustible nature of timber raises significant fire safety concerns. This review explores the recent advancements in fire safety engineering for timber structures, emphasizing both contemporary high-rise buildings and historical timber constructions. It covers topics like inherently safer design principles, fire risk prediction, and evacuation methodologies. The review emphasizes the criticality of selecting suitable materials, structural design, firefighting systems, and advanced sensor technologies for early fire detection. Additionally, we analyze and compares various evacuation strategies, offering insights into the challenges and future directions for fire safety in modern timber structures. [ABSTRACT FROM AUTHOR]

Rockburst (equal to strainburst in this paper), a typical catastrophic geohazard, poses a major threat to the safety of employees and infrastructure in deep rock engineering. Fortunately, accidents can be reduced or eliminated by predicting rockburst accurately, and the sound signals generated during rockburst are useful information for the prediction. In this paper, a two-step method for predicting rockburst using sound signals was proposed, which mainly includes two steps. Step 1: the wavelet scattering network is first used to extract the features of sound signals corresponding to the macrocracking phenomena (e.g. particles ejecting, slabbing, and fragments ejecting) during rockburst, and then these phenomena are classified by the integrated usage of the k-nearest neighbour (KNN) classification algorithm and voting. Finally, according to the nature of these phenomena, which occur sequentially before rockburst, the rockburst development stages can be recognized by the classification results. Step 2: the possibility of rockburst occurrence is determined by identifying the rockburst precursors in the evolutionary characteristics of the sound signals, such as which the Mel-frequency cepstral coefficient rate and energy rate both decrease sharply and the amplitude difference activity exhibits a distinct change from a significant decrease stage to a low-level stage for a duration and then to a dramatic increase stage. Furthermore, case studies show that the two-step method accurately recognizes the rockburst development stages and determines the possibility of rockburst occurrence in a multilevel and progressive way. Therefore, it is feasible to predict rockburst under deep rock engineering. [ABSTRACT FROM AUTHOR]

Loess is usually compacted as building filler in geotechnical engineering construction and the wetting-induced deformation characteristics of compacted loess are closely related to engineering safety. The influence of hydromechanical paths on compacted loess wetting-induced deformation characteristics has been rarely addressed in the literature, especially for compacted sandy loess. In this study, the scanning electron microscopy (SEM) and soil–water retention curve (SWRC) tests are performed to investigate the microstructure and water retention characteristics of compacted sandy loess. Single-oedometer triaxial wetting tests with three complex hydromechanical paths (consolidation-wetting under isotropic stress state, consolidation-loading-wetting-loading and consolidation-unloading-wetting-unloading under deviator stress) are carried out on unsaturated compacted sandy loess. Results indicate that: (1) As the dry density increases, the large inter-aggregate pores inside the compacted sandy loess turned into medium inter-aggregate pores and small inter-aggregate pores; the air entry value increases and the water retention capacity is enhanced. (2) Within a certain range of confining pressure (no more than 400 kPa), the wetting volumetric strain increases with the increase in confining pressure and dry density under isotropic stress condition; the loading paths wetting-induced deformation is greater than unloading paths wetting-induced deformation under deviator stress condition. (3) At a lower stress ratio, compacted sandy loess undergoes significant wetting-induced dilatancy; the wetting-induced deformation under the unloading path appears significant, compared with that under the loading path. [ABSTRACT FROM AUTHOR]

Sulfur hexafluoride (SF6) is the reference tracer gas in many international standards for characterizing respiratory protective devices (RPD), fume cupboards, building ventilations, and other installations. However, due to its significant impact on global warming, its use is becoming increasingly restrictive. Krypton 84 (Kr) was chosen to be a possible replacement based on theoretical and practical criteria for the properties that a substitute gas should possess. While compliance with these criteria is generally sufficient to guarantee the reliability of the choice, it is essential in the case of widespread use such as a standard to validate experimentally that this tracer has the same behavior as SF6. In this regard, numerous tests have been carried out to characterize the face leakage of RPD and the rupture of containment of fume cupboards performance tests under different operating conditions. The results obtained are identical with both tracers and lead us to propose the use of Kr as a new reference gas in standards for which SF6 was used. [ABSTRACT FROM AUTHOR]

Objectives There is growing interest in the role of airborne mycotoxins in occupational environments, however, their impact on human health still remains poorly investigated. This review aims to provide a comprehensive analysis of the existing literature on the occurrence of inhalable mycotoxins in working environments to investigate which sectors and tasks are at greater risk of exposure. Methods We have performed a systematic search in the PubMed, Scopus and Web of Science databases from 2010 to date, without limitation of geographic location. Results Database searches yielded 350 articles. After the removal of duplicates and applying our inclusion and exclusion criteria, 31 papers remained. Results show that the most exposed workers are those engaged in activities related to animal care and management and, in particular, in feeding tasks, while harvester cleaning seems to be the activity with the highest levels of exposure in agriculture. In healthcare settings mycotoxin concentrations are low but HVAC systems can be a source of contamination and this reinforces the relevance of further studies in this sector. The most common scenario is the exposure to multiple mycotoxins with variable concentrations depending on the working environment, the products handled or the tasks performed by workers. Some authors emphasize the importance of multi-approach sampling and analysis protocols to achieve an accurate and more realistic risk characterization. Conclusions Results brought forward by this review can be utilized by health and safety professionals to recognize activities in which workers may be potentially exposed to airborne mycotoxins and thus undertake suitable preventive and protective measures. [ABSTRACT FROM AUTHOR]

This cross-sectional study aims to obtain knowledge about workers' exposure to airborne dust, bacterial and fungal species, endotoxin, biofilm formation, and hydrogen sulfide (H2S) in drilling waste treatment plants. In total, 408 full-shift personal samples, 66 work areas, 40 drilling waste, and reference (outdoor air and seawater) samples were analyzed. Some workers were exposed to high levels of endotoxin (207 EU/m3), bacteria (3.8 × 104 colony forming units (CFU)/m3 and 9.8 × 104 DNA copies/m3), or fungi (1.4 × 107 CFU/m3 and 3,600 copies/m3). The exposure levels to endotoxin, bacteria, and peaks of H2S were dependent on the treatment technique. All types of drilling waste contained large concentrations of bacteria compared to the seawater references. Elevated concentrations of airborne bacteria were found close to drilling waste basins. In total, 116, 146, and 112 different bacterial species were found in workers' exposure, work areas, and the drilling waste, respectively. An overlap in bacterial species found in the drilling waste and air (personal and work area) samples was found. Of the bacterial species found, 49 are classified as human pathogens such as Escherichia coli , Enterobacter cloacae , and Klebsiella oxytoca. In total, 44 fungal species were found in the working environment, and 6 of these are classified as human pathogens such as Aspergillus fumigatus. In conclusion, across the drilling waste treatment plants, human pathogens were present in the drilling waste, and workers' exposure was affected by the drilling waste treated at the plants with elevated exposure to endotoxin and bacteria. Elevated exposure was related to working as apprentices or chemical engineers, and working with cleaning, or slop water, and working in the daytime. [ABSTRACT FROM AUTHOR]

Objective This paper highlights the occupational risk of Q fever from exposure to raw animal products in the context of multiple notified Q fever cases from 2020 to 2023 linked to four pet food manufacturing facilities in South-East Queensland, Australia. Methods The Queensland Government Notifiable Conditions System was used to identify Q fever cases linked to pet food manufacturing in the Metro North and Gold Coast Hospital and Health Service areas of Brisbane, Australia. Data on each case from routine public health follow-up were collected and descriptively analysed. Results Between 2020 and 2023, 12 confirmed Q fever infections (17% of total cases) were linked to four pet food manufacturing facilities. Eleven cases reported direct or environmental exposure to raw meat and animal products. None were previously vaccinated for Q fever. Conclusion These cases demonstrate the increased risk of Q fever infection as part of the pet food manufacturing process, highlighting an underappreciated preventable occupational risk, which can be mitigated with the use of pre-screening and vaccination of workers. All occupations should conduct workplace-based risk assessments to identify risks such as Q fever to prevent adverse negative health outcomes. [ABSTRACT FROM AUTHOR]

Asbestos cement (AC) is used in water pipes, roofing, exterior siding, water tanks, cooling towers, and other applications. Although the global market for asbestos is slowly shrinking, AC products continue to dominate the remaining uses in many countries. This review focuses on asbestos exposures during the installation, maintenance, and ultimate removal of these materials. This assessment summarizes the available published and unpublished reports of airborne asbestos exposures during the cutting and removal of AC pipes, roofing, sheets, and cooling tower components and the range of exposures associated with the most common work practices. Task-based exposures from cutting AC pipe ranged from 11.3 to 129.0 f/cm3 with a mean exposure of 53.8 f/cm3. Cutting flat boards and corrugated roofing AC sheets resulted in exposures ranging from 1.3 to 130.0 f/cm3 with a mean of 24.0 f/cm3. Exposures for power saw cutting of AC sheets and pipes fit lognormal distributions and suggest that more than 86% of these tasks with AC sheet and 100% of the tasks with AC pipe exceed the US short-term Excursion Limit. Intermittent high exposures from the ongoing use of AC products in countries around the world are associated with an increased lifetime risk of asbestos-related disease. [ABSTRACT FROM AUTHOR]

In the near field/far field (NF/FF) dispersion construct, the analytical solutions for the NF and FF concentration equations, respectively denoted C NF(t) and C FF(t) in mg/m3, are coupled in their mathematical derivation. Depending on the form of the contaminant emission rate function G (t) (mg/min), deriving C NF(t) and C FF(t) can range from being relatively easy to impossible. A method is presented to more easily approximate these concentration functions. The method decouples the NF and FF equations by treating the NF as an isolated well-mixed space with volume V NF (m3) and supply/exhaust airflow rate β (m3) and treating the FF as an isolated well mixed-space with volume V (m3) and supply/exhaust airflow rate Q (m3). Assuming that each space contains a source with the same contaminant emission rate function G (t), a contaminant concentration function is derived for the FF zone, denoted C WMR1(t), and an independent contaminant concentration function is derived for the NF zone, denoted C WMR2(t). Deriving a concentration function for a single zone is far easier than deriving coupled concentration functions. It is shown that the sum C WMR1(t) + C WMR2(t) provides an excellent approximation of C NF(t) and that C WMR1(t) provides an excellent approximation of C FF(t). A discrete-time numerical solution for the C NF(t) and C FF(t) system based on a Markov matrix is also presented. [ABSTRACT FROM AUTHOR]

Background Globally, the number of small-scale miners (SSM) is estimated to be more than 25 million, but it supports the livelihoods of around 100 million individuals. In Tanzania, the number of SSM has increased from an estimated 150,000 in 1987 to ~1.5 million in 2017. The miners are at a high risk of occupational-related health challenges. The study aimed to assess the concentrations of respirable crystalline silica (RCS) and radon among the tanzanite mining communities in Simanjiro District, Tanzania. Methods We carried out a cross-sectional study involving the Mererani mines in Tanzania. These are underground mines comprised of informally employed miners, i.e. SSM. Concentrations of RCS and radon gas were measured in 44 study units, i.e. 22 mining pits and within 22 houses in the general community, e.g. shops in the peri-mining community. A total of 132 respirable personal dust exposure samples (PDS), 3 from each of the study units were taken, but only 66 PDS from the mining pits were analysed, as this was the main interest of this study. Radon concentration was measured by continuous monitoring throughout the working shift (and overnight for residences) using AlphaGuard monitor. The medians and comparison to the reference values, OSHA USA PEL and WHO/IARC references, were done for RCS and radon, respectively, using SPSS Ver. 27.0.0). Results The median time-weighted average (TWA) concentration of the RCS in the mining pits was 1.23 mg/m3. Of all 66 personal dust samples from the mining pits, 65 (98.5%) had concentrations of RCS above the Occupational Safety and Health Administration (OSHA) permissible exposure limit (PEL) of 0.05 mg/m3. Mining pits had a median radon concentration of 169.50 bq/m3, which is above the World Health Organization (WHO)/International Commission on Radiation Protection (ICRP) recommended reference of 100.00 bq/m3 but not above the upper reference of 300.00 bq/m3, while the community buildings had a median radon concentration of 88.00 bq/m3. Overall, 9 (20.5%) and 17 (38.6%) radon measurements were above 300.00 bq/m3 and between 100.00 and 300.00 bq/m3 references, respectively. Specifically, in the mining pits, 9 (40.9%) test results were above 300.00 bq/m3, while none of the test results in the community was above 300.00 bq/m3. Conclusion The tanzanite SSM in Mererani we highly exposed to RCS, which increases the risk of pulmonary diseases, including silicosis, tuberculosis, and pulmonary malignancies. Immediate action by OSHA Tanzania should be enforcement of wearing respirators by all miners throughout the working hours. Health education programmes to the SSM must be strengthened and OSHA Tanzania should adopt the 0.05 mg/m3 PEL, and enforce other occupational health and safety measures, including regular use of dust suppression mechanisms (water spray and wet drilling) and monitoring of RCS exposures among SSM. Monitoring of radon exposure both in the mining pits and community buildings should be conducted, and mitigation measures should be implemented in areas that exceed the reference level of 100.00 bq/m3. [ABSTRACT FROM AUTHOR]

In May 2023 the World Health Organization (WHO) Director General announced the "end" of the COVID-19 Public Health Emergency of International Concern. Although the scale of the pandemic was unprecedented in living memory, it had not been unforeseen. Previous outbreaks of viral respiratory disease have shown important lessons regarding the need to protect healthcare workers (HCW), and research has also been undertaken into the relative effectiveness of control measures and their resource implications. Relevant guidance for worker protection, including HCW protection, which existed at the onset of the COVID-19 pandemic was disregarded both at international and national governmental levels. In many countries there were significant systemic flaws in strategy, culture, and resource availability, and hence in overall preparedness. When the pandemic struck, many experts and organizations advocated a precautionary approach with regard to worker protection, consistent with good occupational hygiene science, practice, and standards. In many Asian countries, protective measures were relatively stringent. However, many workers were left unprotected especially as the WHO, the United States, the United Kingdom, and other governments did not pursue adequate COVID-19 protective measures at work. As the pandemic progressed, improvements in protection were patchy. A notable lack of protection arose from the underestimation of the contribution of aerosol exposure to infection risks, particularly among HCWs providing routine care of potentially infectious patients. A disciplined strategy of source control, pathway control (such as ventilation), and receptor control notably Respiratory Protective Equipment is needed, as well as worldwide vaccination, to contend with this pandemic. Control measures appropriate to the risk of infections transmitted through the air will remain necessary in the longer term, as well as adaptations in the workplace to take account of long-term COVID-19 morbidity and new work practices. [ABSTRACT FROM AUTHOR]

Climate change has increased the exposure risk of workers to occupational health risk factors and diseases. This study aims to investigate the impacts of climate change on the occupational health indicators at the workplaces in Iran. This study was conducted during 2021 in three climatic regions of Iran. Required data was collected from Health Deputies of Medical Universities and Iran Meteorological Organization. Stepwise linear regression model used for data analysis and predictions were done based on three scenarios of SSP1–2.6, SSP3–7.0, and SSP5–8.5 during the period of 2021–2100. This indicated 2.6 and 2.9 times higher percentage of workers who were exposed to heat stress and Ultra Violet (UV) radiation, respectively, in the provinces understudy. This study suggests a holistic approach to address potential impacts of climate change on workers' health and safety that would benefit in making decisions on climate-related planning and developing the adaptation strategies at workplaces. [ABSTRACT FROM AUTHOR]

Background and Objectives This study aims to examine why rural-to-urban migrant workers in China remain in the workforce after age 60. Research Design and Methods Semistructured interviews were conducted and transcribed. Interview transcriptions were coded and analyzed by inductive content analysis. Results Rural-to-urban migrant workers in China continue to work even after they reach age 60 for reasons related to personal and family finances, as well as cognitive motivational, sociocultural, and working condition factors. Discussion and Implications Findings from this study deepen our understanding of the specific reasons why older rural-to-urban migrant workers in China continue working after age 60. While these findings emphasize the need for improved welfare programs and enhanced health care for older migrant workers, they also underscore the importance of providing a healthy and safe work environment for older workers. [ABSTRACT FROM AUTHOR]

The failure of emission control systems in industrial processes undergoing emission regulations can cause severe harm to the environment. In this context, safety engineering principles can be applied to analyze process deviations and identify suitable safety barriers to mitigate harmful emissions during critical events. However, the selection, design, and assessment of proper safety barriers may be complex due to several contingencies such as the inability to perform extensive field tests on systems under strict emission regulations. In this study, an approach is proposed to couple conventional hazard identification techniques with a digital model of a flue gas treatment system to support the identification and performance assessment of safety barriers for emission control. Resilience analysis is used to evaluate the behavior of the most relevant safety barrier options, selected through a screening with conventional hazard identification tools. Barriers are simulated using the digital model of the system, gathering key information for their design and evaluation, and overcoming the limitations to field tests at the real plant. The methodology is illustrated with reference to acid gas removal in waste-to-energy facilities, a relevant example of an emission control system that is typically exposed to significant process deviations. [ABSTRACT FROM AUTHOR]

Objective: The study aimed to reinvestigate psychological mechanisms of the influence of construction workers' experience on hazard recognition performance, with signal detection theory (SDT) and electroencephalogram (EEG) readings. Background: Existing evidence regarding the effect of experience on hazard recognition performance in the construction industry remains inconsistent. Behavior-wise, identification of dominant hazard recognition factors (sensitivity or response bias, or both) would help determine appropriate training strategies to improve hazard recognition. In terms of neuro-responses, induced gamma-band activity was expected to reflect the cognitive functions mediating the psychological effects of experience. Method: Seventy-seven construction workers participated in a predesigned hazard recognition task, in which participants judged whether a hazard was present from a series of construction scenario pictures. We computed and compared the sensitivity and response bias of SDT and time-frequency representations of recorded EEG signals of the two experience-level groups. Results: Novice workers had higher hazard recognition rates. Behavior-wise, novices were more sensitive than more experienced workers. Compared with experienced workers, novices showed stronger gamma-band difference power (hazardous minus safe) in the left frontal and right posterior parietal areas during the hazard recognition process. Conclusion: Novices performed better at hazard recognition, indicating their sensitivity to the hazards without a clear difference in response bias. Based on the EEG data, novices' sensitivity may be attributed to more efficient working memory and attentional control. Application: There is a need for continuous refreshment of hazard recognition skills for experienced workers for safety interventions. [ABSTRACT FROM AUTHOR]

This exploratory study looked at the experiences of social work, occupational therapy, and nursing students who participated in an interprofessional simulation that was offered virtually due to the impact of COVID-19. The simulation was a one-day event that introduced advanced care planning to the students through an IPE team approach and incorporated various learning and teaching modalities. Using conventional content analysis of the post-program survey data from 255 students (35 occupational therapy; 87 social work; and 133 nursing), three primary themes were identified for the value of learning virtual interprofessional collaboration during a pandemic: (1) catalyst for telehealth education; (2) patient, family & professional safety; and (3) connection and continuity of care. In addition, students identified four primary themes that were learned and perceptions of what could lie ahead beyond the simulation: (1) patient & family convenience and inclusion; (2) expand interprofessional team involvement; (3) alleviate disparities/increase access; and (4) the "new normal" of virtual IP Collaboration. [ABSTRACT FROM AUTHOR]

Our study examined the occupational health and safety (OHS) issues that impact environmental public health workforces across various health departments in the U.S. The objective was to generate an OHS risk profile for the workforce to inform future preventative strategies. Data for our study were collected via a cross-sectional online survey (N = 158) supplemented by a virtual focus group (N = 7) discussion to confirm and explore some of the themes and data items that emerged from the survey. Descriptive statistics were used to provide information about the variables in the data sets and to identify relationships between them. Nonparametric tests were used to determine statistical significance between two or more variables that were not normally distributed. Focus group data were analyzed thematically. Our study indicates that the environmental health (EH) workforce in the U.S. is exposed to a range of significant workplace hazards. Some of the OHS concerns identified in our study are similar to those observed in Australia and New Zealand. Biological and chemical exposures appear to be important hazards; however, further study is required to determine the nature and mechanism of these hazards within the EH workforce. Furthermore, our study suggests that the COVID-19 pandemic had a significant impact on the health and safety of EH professionals. [ABSTRACT FROM AUTHOR]

Objective: COVID-19 has changed work conditions and instilled fear. However, research overlooked the contributing factors to fear of COVID-19 and its impact on well-being. We addressed this research gap and focused on the es-sential workforce of child care. Methods: Three samples of early childhood professionals (ECPs) (NT1 = 423, NT2 = 142, NT3 = 584) were gathered in Germany between June 2020 and May 2021. We tested via path analysis whether (1) fear of COVID-19 relates to well-being. (2) COVID-19-related work stressors relate to fear of COVID-19, and (3) fear of COVID-19 mediates the relationship of work stressors and well-being. Results: Findings of NT1 and NT3 lent support, while results of NT2 differed. Conclusions: This study under-lines the importance of adapting the work conditions during pandemics to re-duce the fear of infection and thus preserve ECPs' well-being. [ABSTRACT FROM AUTHOR]

Smart warehouses require software-based decision-making tools to manage the receiving, storing, and picking of products. A major challenge in achieving efficient operations is deciding where to store products associated with incoming orders. The storage location assignment problem (SLAP) is more complex in large-size warehouses due to several functional objectives and numerous possible shelving solutions. This paper introduces an artificial intelligence algorithm that seeks to find an acceptable solution to SLAP with presented linear and nonlinear objective functions. The near-optimal technique exploits basin-hopping and simulated-annealing algorithms to find a solution when considering four functional objectives including worker safety, which has not been optimized using similar approaches. The algorithm is experimentally evaluated, and results demonstrate that reasonablely achieved solutions are comparable to those obtained by well-known existing solvers. Furthermore, the problem could be solved with non-linear objectives which is beyond the commercial solvers' like SCIP capability. [ABSTRACT FROM AUTHOR]

Introduction. Immigrant nail salon owners and employees face multiple barriers to accessing occupational health training and services. We formed an academic-community-based organization–business owner partnership—unique in that all partners were culturally congruent—to develop a pilot intervention program for the nail salon community. Methods. Eighteen individuals (nine salon owners and nine employees) from the Greater Philadelphia region received the training in their native language and provided feedback through in-depth qualitative interviews. Interview guide was developed using the Consolidated Framework for Implementation Research (CFIR). Themes of perceived benefits and barriers were identified and aligned with relevant CFIR constructs to gain better understanding of the implementation challenges. Results. Reported benefits of program were improved knowledge of the workplace hazards and safety practices, and the potential to attract more customers and retain employees. Perceived barriers to implementing recommended practices were limited availability of safer products and high cost, challenges communicating with customers, lack of engagement from some owners, organizational management practices affecting employees' motivation, and limited partnership with local government to assist small immigrant-owned businesses. Conclusions. Our study revealed multiple factors that pit long-term health protection of nail salon workers against the economic viability of the businesses that employ them. Our research highlights the need to (1) advocate for federal policies making safer products to be more accessible to the masses, (2) establish local policy and culturally appropriate technical support programs that engage community-based organizations, and (3) develop economic opportunities and mentorship for immigrant entrepreneurs to operate profitable healthy salons. [ABSTRACT FROM AUTHOR]

The Eurocode 8—Part 4 approaches, per their December 2022 update, are presented for the design of acceleration-sensitive industrial ancillary components. The seismic performance of such nested and/or supported ancillary elements, namely mechanical and electrical equipment, machinery, vessels, etc. is critical for the safety and operability of an industrial facility in the aftermath of an earthquake. Of primary importance are the structural characteristics of the supporting structure and the supported component, pertaining to resonance, strength, and ductility, and whether these are known (and to what degree) during initial design and/or subsequent modifications and upgrades. Depending on the availability and reliability of information on the overall system, the Eurocode methods comprise (a) a detailed component/structure-specific design accounting for all pertinent component and building characteristics, equivalent to typical building design per Eurocode 8—Part 1–2, (b) a conservative approach where a blanket safety factor is applied when little or no such data is available, and (c) a ductile design founded on the novel concept of inserting a fuse of verified ductility and strength in the load path between the supporting structure and the ancillary element. All three methods are evaluated and compared on the basis of a case-study industrial structure, showing how an engineer can achieve economy without compromising safety under different levels of uncertainty. [ABSTRACT FROM AUTHOR]

Forensic engineers and crash safety researchers sometimes use the injuries of a seatbelted occupant to infer the injury risk of an unbelted occupant in the same crash, had they instead been wearing a seatbelt. It is unclear, however, whether this inference is valid or how often two occupants in the same collision have similar injuries. Here, we sought to compare the injury outcomes between drivers and front‐seat passengers in frontal collisions using real‐world collision data. We compared the injury severity, quantified using the Abbreviated Injury Scale (AIS), of 22 injury categories between front‐seat occupants with matching seatbelt use and airbag deployment in single‐event frontal collisions recorded in the publicly available National Automotive Sampling System, Crashworthiness Data System (years 1993–2015) database to assess whether they had similar severity injuries. We analyzed the four combinations of seatbelt use and airbag deployment and all seatbelt/airbag conditions combined. In only 3 of 88 combinations of injuries and seatbelt/airbag conditions did more than 50% of occupant pairs have the same AIS score, although the related confidence intervals showed these proportions were not significantly greater than 50%. In contrast, we found 19 combinations of injuries and seatbelt/airbag conditions where one occupant was consistently injured more severely than the other. Our findings show that injury outcome is not similar for both front‐seat occupants in the same frontal collision with similar seatbelt and airbag conditions; however, one may be able to predict that one occupant would be more severely injured than their fellow occupant. [ABSTRACT FROM AUTHOR]

Background: Latino Day Laborers (LDL) face a variety of factors which have been associated with at-risk drinking. The objective of this study was to assess the association of at-risk drinking with measures of work site conditions. Methods: Data from surveys conducted with 307 LDL in Houston, TX in 2015 were analyzed. Sociodemographic information and measures of exposures to hazardous products at the worksite, adverse working conditions, and work stressors were collected. Measures of positive working climate at the jobsite and a climate that promoted jobsite safety were also included. Participants were administered the Hazardous Use items from the Alcohol Use Disorders Identification Test of Consumption (AUDIT-C). Participants were classified as low-risk or at-risk drinkers based on AUDIT-C score. Logistic regression models were run to assess the associations of the sociodemographic and worksite related variables with drinking status. Results: One-hundred-five (34.2%) participants were classified as at-risk drinkers. At-risk drinking was associated with past-month income, being formerly married (compared to having never married), and lack of housing. At-risk drinking was also associated with measures of a positive working climate and a climate that promoted jobsite safety. Conclusions: One-third of our participants were classified as at-risk drinkers. At-risk drinking was associated with stressors in the form of lack of housing and no longer having a spouse but was also associated with increased income and with positive workplace factors. At-risk drinking was thus a function of both stressors and positive factors, including a positive work site. [ABSTRACT FROM AUTHOR]

Farmers are at an elevated risk for injuries and are, therefore, highly sought after for research studies. However, their participation in research studies is low. We examine how characteristics of the farmer, farm location, and timing of recruitment contact impact the probability that farmers will engage and participate in a study of injuries and related farm hazards. Study data were obtained from the Farm Safety Study conducted at the University of Iowa between June 2019 and March 2020. We used recruitment data from participants enrolled using Farm Journal magazine subscription lists. Multinomial logistic regression was used for predictive modeling. Predictor variables included the time of day and the farm season in which phone contact for study recruitment was attempted, as well as the rurality of the farm. Two models were created to characterize screening and participation of farmers in the study. Farm season and time of day of the last recruitment call increased the likelihood of farmers being screened for study participation and completing the study. Specifically, contacting farmers during the growing season and during the daytime, regardless of farm rurality, resulted in higher probabilities of participation. Studies of agricultural injury may be more efficiently conducted, with higher participation responses, when circumstances of the recruitment call are considered. This work serves as a starting place for much-needed methodological research to identify factors that increase participation of farmers and farm workers in research studies. [ABSTRACT FROM AUTHOR]

The goal of this exploratory pilot study was to reduce marine fatalities in Norton Sound using knowledge shared from Alaska Native salmon set gillnetters in Unalakleet, AK. The following objectives to address this goal were: 1) identify factors that influence safety for Alaska Native commercial set gillnetters in Norton Sound; 2) use findings from objective 1 to improve commercial fishing training, education, and resources; and 3) disseminate and communicate results from objective 1 to commercial fishers in the Norton Sound fleet, commercial fishing safety partners, and the Alaska Native injury prevention community. Ten semi-structured interviews were conducted with Alaska Native commercial set gillnetters in Unalakleet, AK. We utilized knowledge shared to identify factors that influence safety for their fleet. Using an Interpretative Phenomenological Analysis Methodology, 10 interviews were recommended for a homogenous sample. Most participants learned to fish at a young age from the family, with safety lessons passed on by family members. Fishing is a lifestyle and interconnected with harvesting and a way of living. Set gillnetters in Norton Sound use open skiffs and have limited access to workable Personal Flotation Devices (PFDs) and safety training. Participants reported health benefits but also negative long term physical effects, financial stress, and difficulty fishing with age. Respect and awareness of the ocean was reported as the most important strategy to reduce risk. Stories were shared of falls overboard, capsizing, and local fatalities and hazards, such as being overloaded with fish, entanglement, and maneuvering a small boat in large waves. Stronger winds and shifting weather patterns were experienced from climate change. This exploratory pilot study identified factors that influence safety for Alaska Native commercial set gillnetters. Findings should be used to 1) determine best methods to influence behaviors to reduce risks in this hazardous fishery; 2) increase awareness and promote expanded application of best practices, equipment, and resources; 3) encourage and promote outreach initiatives targeted for this unique population; and 4) develop tailored training programs for commercial fishing in an open skiff. Research with Alaska Native fishing communities will require value and respect of indigenous knowledge, collaboration with local people, and follow-up to bring findings back to the community. [ABSTRACT FROM AUTHOR]

Objectives. To determine whether US Department of Labor standard occupational classification (SOC) codes can be used for public health workforce research. Methods. We reviewed past attempts at SOC matching for public health occupations and then used the National Institute for Occupational Safety and Health Industry and Occupation Computerized Coding System (NIOCCS) to match the actual job titles for 26 516 respondents to the 2021 Public Health Workforce Interests and Needs Survey (PH WINS) with SOC codes, grouped by respondents' choice of job category in PH WINS. We assessed the accuracy of the NIOCCS matches and excluded matches under a cutpoint using the Youden Index. We assessed the percentage of SOC matches with insufficient information and diversity of SOC matches per PH WINS category using the Herfindahl–Hirschman Index. Results. Several key public health occupations do not have a SOC code, including disease intervention specialist, public health nurse, policy analyst, program manager, grants or contracts specialist, and peer counselor. Conclusions. Without valid SOC matches and detailed data on local and state government health departments, the US Department of Labor's data cannot be used for public health workforce enumeration. (Am J Public Health. 2024;114(1):48–56. https://doi.org/10.2105/AJPH.2023.307463) [ABSTRACT FROM AUTHOR]

Aims: The study aimed to (1) discover workers' attitudes toward the use of novel video screens to improve hand sanitization in the workplace and (2) discover what workers' preferences are for hand hygiene (HH) messaging style and tone and reasons for their preferences. Background: Practicing good HH in non-medical office settings is vital to curb the spread of a range of common and infectious diseases. Despite this, workers are rarely consulting in the construction of HH messages. The qualitative views of users can provide us with the "why" rather than the "what" and can highlight areas of cynicism, concern and overall attitudes to HH. Methods: A survey was completed by 520 UK workers concerning attitudes and views toward HH messaging and the use of a video-based hand sanitizer unit. Analysis consisted of both qualitative and quantitative methods. Results: Workers were skeptical toward the use of digital technologies within HH interventions, and there were misgivings about the role that video could play. Results demonstrated a strong preference for positive and supportive messages. Educational and trustworthy qualities were well rated. Messages that emphasized surveillance, previously successful in a clinical setting, or guilt, were not well received. Visual approaches that utilized serious illustration were valued. Conclusion: This study highlights how consulting workers before the design of HH initiatives is important in guiding the design process. The resultant user-centered criteria promotes the use of positive, motivational, thought-provoking, surprising, and visual approaches to HH messaging. [ABSTRACT FROM AUTHOR]

Objectives: To develop an objective, structured observational tool to enable identification and measurement of hazards in the built environment when applied to audiovisual recordings of simulations by trained raters. Background: Simulation-based facility design testing is increasingly used to optimize safety of healthcare environments, often relying on participant debriefing or direct observation by human factors experts. Methods: Hazard categories were defined through participant debriefing and detailed review of pediatric intensive care unit in situ simulation videos. Categories were refined and operational definitions developed through iterative coding and review. Hazard detection was optimized through the use of structured coding protocols and optimized camera angles. Results: Six hazard categories were defined: (1) slip/trip/fall/injury risk, impaired access to (2) patient or (3) equipment, (4) obstructed path, (5) poor visibility, and (6) infection risk. Analysis of paired and individual coding demonstrated strong overall reliability (0.89 and 0.85, Gwet's AC1). Reliability coefficients for each hazard category were >0.8 for all except obstructed path (0.76) for paired raters. Among individual raters, reliability coefficients were >0.8, except for slip/trip/fall/injury risk (0.68) and impaired access to equipment (0.77). Conclusions: Hazard Assessment and Remediation Tool (HART) provides a framework to identify and quantify hazards in the built environment. The tool is highly reliable when applied to direct video review of simulations by either paired raters or trained single clinical raters. Subsequent work will (1) assess the tool's ability to discriminate between rooms with different physical attributes, (2) develop strategies to apply HART to improve facility design, and (3) assess transferability to non-ICU acute care environments. [ABSTRACT FROM AUTHOR]

COVID-19 profoundly shaped how service providers in the antiviolence sector interact with clients, coworkers, and community stakeholders. In addition to stressors inherent in antiviolence work, service providers negotiated new, challenging social distancing and remote communication strategies. In this paper, we analyze interviews with 23 antiviolence workers in the US Great Plains region, focusing on participants' descriptions of workplace boundaries and intimacy. We demonstrate how COVID-19 both expanded and contracted public/private boundaries and formal/informal connections in antiviolence workers' daily experiences. Pandemic conditions revealed the pressing need for frontline workers to exercise discretion over levels of intimate engagement with coworkers and clients. [ABSTRACT FROM AUTHOR]

Accidents and injuries plague the construction industry worldwide. It has been shown that frontline workers' safety citizenship behavior plays a key role in preventing accidents and improving workplace safety. In this study, we consider anticipated image risk, defined as an individual's belief that one action might harm how they are seen by others, as a psychological obstacle to safety citizenship behavior. Drawing on social identity theory and psychological defense mechanism, we propose that anticipated image risk can reduce the felt safety responsibility and sense of belonging of workers and thus reduce safety citizenship behavior. This effect is strongest among individuals who are low on proactive personality. Using data from 339 construction workers, we tested our proposed conceptual model in the construction context. As expected, felt safety responsibility and sense of belonging mediated the negative effect of anticipated image risk on safety citizenship behavior. Workers with a proactive personality were less susceptible to the negative effect of anticipated image risk. The findings extend the safety citizenship behavior literature by introducing a psychological barrier, a self-defense mechanism, and a moderator to explain the process. This study also enriches the current theoretical perspectives by applying social identity theory to explore the emergence of construction workers' safety citizenship behavior. Workplace safety is a critical issue in the construction industry. Scholars and practitioners are aware of the key role of frontline worker initiative, because workers are in the right position to be familiar with daily work details, and their safety citizenship behavior has been proven to have a significant effect on preventing safety accidents. Using data from 339 construction workers, this study highlights the deterrent effect of anticipated image risk on safety citizenship behavior. It is recommended that higher-ups recast outdated stereotypes of initiating proactive safety actions as managers' affairs and create a climate that encourages workers to demonstrate such behavior. Furthermore, the proactive personality of construction workers can work on preventing the negative effects of anticipated image risk on safety citizenship behavior, which encourages management to select workers with such personalities. Finally, it should be stressed that anticipated image risk will influence safety citizenship behavior through reducing the felt safety responsibility and sense of belonging of workers. This may help management make decisions on safety citizenship behavior interventions by offering sufficient care and support to workers, thereby promoting the emotional connection of workers with the organization and safety responsibility on the site. [ABSTRACT FROM AUTHOR]

Wearable sensing devices (WSDs) have enormous promise for monitoring construction worker safety. They can track workers and send safety-related information in real time, allowing for more effective and preventative decision making. WSDs are particularly useful on construction sites since they can track workers' health, safety, and activity levels, among other metrics that could help optimize their daily tasks. WSDs may also assist workers in recognizing health-related safety risks (such as physical fatigue) and taking appropriate action to mitigate them. The data produced by these WSDs, however, is highly noisy and contaminated with artifacts that could have been introduced by the surroundings, the experimental apparatus, or the subject's physiological state. These artifacts are very strong and frequently found during field experiments. So, when there is a lot of artifacts, the signal quality drops. Recently, artifacts removal has been greatly enhanced by developments in signal processing, which has vastly enhanced the performance. Thus, the proposed review aimed to provide an in-depth analysis of the approaches currently used to analyze data and remove artifacts from physiological signals obtained via WSDs during construction-related tasks. First, this study provides an overview of the physiological signals that are likely to be recorded from construction workers to monitor their health and safety. Second, this review identifies the most prevalent artifacts that have the most detrimental effect on the utility of the signals. Third, a comprehensive review of existing artifact-removal approaches were presented. Fourth, each identified artifact detection and removal approach was analyzed for its strengths and weaknesses. Finally, in conclusion, this review provides a few suggestions for future research for improving the quality of captured physiological signals for monitoring the health and safety of construction workers using artifact removal approaches. [ABSTRACT FROM AUTHOR]

Work zones are crucial for infrastructure maintenance and improvement. However, ongoing projects within work zones sometimes can place workers and drivers in dangerous situations. Despite safety regulations, work zone accidents persist with notable severity and frequency. Previous research has explored work zone accident causation, but it has not provided a comprehensive understanding of the factors that impact work zone safety. This paper addresses this research gap by following a multistep methodology. First, a systematic literature review (SLR) was conducted to identify a comprehensive list of 37 factors impacting work zone safety. Second, social network analysis (SNA) was employed to analyze the connectivity between these identified factors, based on the theoretical, mathematical, and computational approaches found in the literature. Third, the factors were grouped into clusters using the k -means clustering technique, considering the overall discussions present in the literature. Last, association rules were mined from the clustered factors to determine combinations of factors that have not been extensively examined together, thereby identifying gaps and deficiencies in the present body of knowledge. The findings of the SNA indicate that design-related factors have received more extensive attention in the literature, whereas certain driver- and state-related factors have received comparatively less attention. The clustering analysis shows that a significant number of theoretically addressed safety factors in the literature frequently are examined together, which indicates a necessity for additional computational and mathematical investigations to gain a more comprehensive understanding of these factors. Moreover, the association rules highlight the groups of underexamined relationships of factors that affect work zone safety. Ultimately, this research contributes to the body of knowledge by consolidating the studies concerning work zone safety and using them to provide a robust roadmap for future research, thereby enhancing the advancement of this field and ultimately leading to improved work zone safety practices. [ABSTRACT FROM AUTHOR]

Need for recovery (NFR) is an early indicator of work-related fatigue that has negative implications for worker health and safety. However, little attention has been paid to NFR in the construction industry. This study aims to investigate NFR patterns across site-based construction practitioners and their relationships with job (i.e., perceived role overload and main role) and employee characteristics (i.e., age, gender, educational level, marital status, and having children or not) in the construction industry. Data collected from 243 site-based construction practitioners were analyzed by latent class analysis (LCA) and multinomial logistic regression. Four NFR classes were identified by LCA and defined as low, moderately low, moderately high, and high. Results revealed that a combined 54% of site-based construction practitioners belonged to the moderately high and high NFR classes. Multinomial logistic regression revealed that site-based construction practitioners who perceived more role overload (versus those who perceived less role overload), held site management positions (versus tradespeople), or were female (versus male) were more likely to be in the high NFR class. The significance of this study lies in enriching the knowledge of NFR in the construction industry. [ABSTRACT FROM AUTHOR]