استكشف المجموعة الواسعة من العناوين المتاحة.

Background With approximately 8 hours of one’s waking day spent at work, occupational tasks and environments are important influencers on an individual’s physical activity (PA) and sedentary behaviours. Little research has compared device-measured physical activity, sedentary behaviour and cardiometabolic outcomes between occupational groups. Objective To compare device-measured movement (sedentary time [ST], light intensity physical activity [LPA], moderate-to-vigorous intensity physical activity [MVPA], and steps) across occupations. The secondary objective was to examine whether cardiometabolic and fitness outcomes differed by occupation. Methods Five bibliographic databases were searched to identify all studies which included working age, employed adults from high-income countries, and reported on device-measured movement within occupations. Risk of bias within and across studies was assessed. Results were synthesized using meta-analyses and narrative syntheses. Results The review includes 132 unique studies with data from 15,619 participants. Working adults spent ~ 60% of their working and waking time engaged in sedentary behaviour; a very small proportion (~ 4%) of the day included MVPA. On average, workers accumulated 8124 steps/day. Office and call center workers’ steps/day were among the lowest, while those of postal delivery workers were highest. Office workers had the greatest ST and the lowest time in LPA both at work and during wakeful time. However, office workers had the greatest minutes sent in MVPA during wakeful hours. Laborers had the lowest ST and spent a significantly greater proportion of their work time in LPA and MVPA. Healthcare and protective services workers had higher levels of LPA at work compared to other occupations. Workers in driving-based occupations tended to have a higher body mass index and blood pressure. Conclusion This review identifies that occupational and wakeful time PA and ST differed between occupations. Future studies are needed to assess whether patterns differ by age and sex, describe leisure-time movement and movement patterns, and the relationship with cardiometabolic health. Systematic review registration PROSPERO CRD42017070448 .

Sin embargo, pese a que desde las instancias del poder se haya intentado silenciar la obra de autores como Joseph de Maistre, es cierto que sus textos siempre han estado presentes, con mayor o menor intensidad, en la memoria cultural de la colectividad para la que fueron escritos.

With the continuous development of laser technology, more and more attention has been paid to the research of laser cleaning mechanism and the development of finished equipment. This paper introduces the application of laser cleaning technology in rust removal of iron and steel, summarizes the physical mechanism of laser cleaning, and puts forward the condition of synchronous cleaning and passivation of floating rust layer and the method of double beam wet cleaning and passivation. In addition, a cleaning method and device for wet cleaning and de-rusting with two beams is proposed in this paper.

The prevalent condition known as hand eczema has been associated with substantial decreased quality of life, as well as considerable social and occupational expenses. Even though hairdressing is a significant source of wealth, it is linked to several kinds of medical problems mainly skin conditions. Limited studies conducted in Ethiopia to assess self-reported prevalence of hand eczema and associated factors. This study aims to assess self-reported prevalence of hand eczema and associated factors among hairdressers of Debre Berhan city. A cross-sectional study was conducted among 435 hairdressers of Debre Berhan city in North Eastern Ethiopia from January 10 to February 20, 2025. A simple random sampling technique was used to select hair dressers. Data was collected using a structured questionnaire adapted from Nordic occupational skin questionnaire and observational checklist through face to face interview and observation. Multivariable binary logistic regression was employed to identify associated factors of hand eczema. Prevalence of hand eczema among hairdressers of Debre Berhan city was 56.9%. Poor knowledge (AOR = 2.89, 95% CI: 1.199-4.963), not utilizing personal protective equipment consistently over the years (AOR = 3.8, 95% CI: 2.183-7.012), low hand washing frequency per day (AOR = 3.4, 95% CI: 1.399-6.433) and not taking OHS training (AOR = 4.8, 95% CI: 2.617-8.709) were identified factors of hand eczema. Prevalence of hand eczema among hair dressers in Debre Berhan city was high. Poor knowledge, not utilizing personal protective equipment consistently over the years, low hand washing frequency per day and not taking OHS training were identified factors. Hair dressers should utilize proper type of personal protective equipment before starting any activities in the work place. Inclusion of hand eczema education in Technical and Vocational Educational and Training (TVET) or policy-level interventions would enhance occupational health awareness, early prevention strategies and long-term skin protection practices among hairdressers.

As the US wrestles with immigration policy and caring for an aging population, data on immigrants' role as health care and long-term care workers can inform both debates. Previous studies have examined immigrants' role as health care and direct care workers (nursing, home health, and personal care aides) but not that of immigrants hired by private households or nonmedical facilities such as senior housing to assist elderly and disabled people or unauthorized immigrants' role in providing these services. Using nationally representative data, we found that in 2017 immigrants accounted for 18.2 percent of health care workers and 23.5 percent of formal and nonformal long-term care sector workers. More than one-quarter (27.5 percent) of direct care workers and 30.3 percent of nursing home housekeeping and maintenance workers were immigrants. Although legal noncitizen immigrants accounted for 5.2 percent of the US population, they made up 9.0 percent of direct care workers. Naturalized citizens, 6.8 percent of the US population, accounted for 13.9 percent of direct care workers. In light of the current and projected shortage of health care and direct care workers, our finding that immigrants fill a disproportionate share of such jobs suggests that policies curtailing immigration will likely compromise the availability of care for elderly and disabled Americans.

The North Railroad Avenue Plume (NRAP) Superfund site in New Mexico, USA exemplifies successful chlorinated solvent bioremediation. NRAP was the result of leakage from a dry-cleaning that operated for 37 years. The presence of tetrachloroethene biodegradation byproducts, organohalide respiring genera (OHRG), and reductive dehalogenase (rdh) genes detected in groundwater samples indicated that enhanced reductive dechlorination (ERD) was the remedy of choice. This was achieved through biostimulation by mixing emulsified vegetable oil into the contaminated aquifer. This report combines metagenomic techniques with site monitoring metadata to reveal new details of ERD. DNA extracts from groundwater samples collected prior to and at four, 23 and 39 months after remedy implementation were subjected to whole metagenome sequencing (WMS) and 16S rRNA gene amplicon (16S) analyses. The response of the indigenous NRAP microbiome to ERD protocols is consistent with results obtained from microcosms, dechlorinating consortia, and observations at other contaminated sites. WMS detects three times as many phyla and six times as many genera as 16S. Both techniques reveal abundance changes in Dehalococcoides and Dehalobacter that reflect organohalide form and availability. Methane was not detected before biostimulation but appeared afterwards, corresponding to an increase in methanogenic Archaea. Assembly of WMS reads produced scaffolds containing rdh genes from Dehalococcoides, Dehalobacter, Dehalogenimonas, Desulfocarbo, and Desulfobacula. Anaerobic and aerobic cometabolic organohalide degrading microbes that increase in abundance include methanogenic Archaea, methanotrophs, Dechloromonas, and Xanthobacter, some of which contain hydrolytic dehalogenase genes. Aerobic cometabolism may be supported by oxygen gradients existing in aquifer microenvironments or by microbes that produce O2 via microbial dismutation. The NRAP model for successful ERD is consistent with the established pathway and identifies new taxa and processes that support this syntrophic process. This project explores the potential of metagenomic tools (MGT) as the next advancement in bioremediation.

Background The laundry and dry cleaning industries are critical for maintaining cleanliness and hygiene in our daily lives. However, they have also been identified as sources of hazardous chemical exposure for workers, leading to potentially severe health implications. Despite mounting evidence that solvents like perchloroethylene and trichloroethylene are carcinogenic, they remain commonly used in the industry. Additionally, while alternative solvents are increasingly being utilized in response to indications of adverse health and environmental effects, there remains a significant gap in our understanding of the potential risks associated with exposure to these new agents. Methods This study aims to identify gaps in the literature concerning worker exposure to contemporary toxic chemicals in the laundry and dry cleaning industry and their associated carcinogenic risks. A scoping review of peer-reviewed publications from 2012 to 2022 was conducted to achieve this objective, focusing on studies that detailed chemical exposures, sampling methods, and workers within the laundry and dry cleaning sector. Results In this scoping review, 12 relevant papers were assessed. A majority (66%) examined perchloroethylene exposure, with one notable finding revealing that biomarkers from dry cleaners had significant micronuclei frequency and DNA damage, even when exposed to PCE at levels below occupational exposure limits. Similarly, another study supported these results, finding an increase in early DNA damage among exposed workers. Separate studies on TCE and benzene presented varied exposure levels and health risks, raising concern due to their IARC Group 1 carcinogen classification. Information on alternative solvents was limited, highlighting gaps in health outcome data, exposure guidelines, and carcinogenic classifications. Conclusion Research on health outcomes, specifically carcinogenicity from solvent exposure in dry cleaning, is limited, with 66% of studies not monitoring health implications, particularly for emerging solvents. Further, findings indicated potential DNA damage from perchloroethylene, even below set occupational limits, emphasizing the need to reevaluate safety limits. As alternative solvents like butylal and high-flashpoint hydrocarbons become more prevalent, investigations into the effects of their exposure are necessary to safeguard workers’ health. This scoping review is registered with the Open Science Framework, registration DOI: https://doi.org/10.17605/OSF.IO/Q8FR3 .

ObjectiveTo estimate the reported UK incidence of occupational inhalation accidents, and to consider changes of incidence and potential causes over time.MethodsCases of occupational inhalation accident reported to Surveillance of Work Related Occupational Respiratory Diseases (SWORD) over 20 years were grouped into four 5-year time periods. Cases were characterised by causative exposure, occupation and industrial sector. Incidence rates were calculated using Office of National Statistics employment data.ResultsThe 172 actual cases reported to SWORD equated to an estimated 502 cases after adjusting for reporting frequency. Their mean age was 41.3 years (SD 12.3); 77% were male. The annual incidence fell from 1.7 per million employed in the first 5-year period, to 0.5 in the most recent. The most common occupations, responsible for 35% of all cases, were in descending order (number, % of total cases): Labourers in process and plant operations (8, 4.7), welding trades (8, 4.7), fire service officers (8, 4.7), heavy goods vehicle drivers (7, 4.1), metal working production and maintenance fitters (7, 4.1), civil service administrative officers and assistants (7, 4.1), food, drink and tobacco process operatives (6, 3.5), and three summated categories of elementary and service occupations including cleaners and domestics (10, 5.8).Three of 40 exposure categories were common to all time periods; acids (19.6% of all cases 1999–2004, 2.3% 2005–2009, 6.3% 2010–2013, 6.3% 2014–2018), chlorine/hypochlorites (7.2%, 7.0%, 2.5%, 6.3%, respectively) and solvents (14.4%, 11.6%, 12.5%, 6.3%, respectively).ConclusionsThe incidence of inhalation accidents appears to have fallen, although certain exposures appear to be persistently linked to cases.