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Sunbed use is associated with an increased risk for skin cancer and is particularly dangerous for younger persons. The objective of this study was to assess how demographic factors, health-related behaviours and appearance-related factors are associated with sunbed use. Cross-sectional data from the Danish National Youth Study collected by the National Institute of Public Health during 2014 was used. A total of 64,382 students aged 15-25years were included in the present study. Multilevel logistic regression analyses were used to determine associations. Sunbed use during the past 12months was reported by 22% of students, with a higher proportion among females (29%) than males (12%). Factors associated with sunbed use were older age, studying at a vocational college or a higher preparatory examination school compared to upper secondary school, and lower parental education. Furthermore, being a smoker, been binge-drinking, longer duration of exercise and been dieting were also associated with sunbed use. For females, poor dietary habits were also associated with sunbed use. Feeling overweight was associated with lower odds for sunbed use for males, but with higher odds for females. Lower body satisfaction was associated with higher odds of sunbed use, except for overweight males. Students who were underweight had lower odds for sunbed use, than normal weight students. Conclusively, we found evidence of associations between demographic factors, health-related behaviours and appearance-related factors and sunbed use. Understanding these relations could help to identify high-risk groups and guide preventive strategies for sunbed use and skin cancer prevention.

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Industry 4.0, digitization, and Internet of Things enable companies to react quickly and flexibly to market changes. The objective is the production of customized products at the cost of a mass-produced product. The widespread entry of cyber-physical systems enables a networking of all entities. The introduction of cyber-physical systems in production and logistic systems dissolves existing rigid structures and as a result versatile cyber-physical production systems occur. To support the flexibility of the cyber-physical production systems, the production supply needs to be adapted. For this reason, this paper proposes a novel universal production supply concept. This concept introduces a decentralized controlled supply. It is executed by several cyber-physical system entities, which are represented by software agents. These agents negotiate autonomously with each other. The novel concept was implemented in a research lab and evaluated quantitatively and qualitatively. For the quantitative evaluation, the efficiency of the novel concept is evaluated and compared with a kanban supply. An innovative key performance indicator system called process status indicators evaluates the efficiency. The result of this indicator system states that the novel concept is more efficient than the kanban supply.

Background Ninety percent of skin cancers are avoidable. In Denmark, 16,500 cases of melanoma and keratinocyte cancers were registered in 2015. The Danish Sun Safety Campaign has campaigned since 2007, targeting overexposure to ultraviolet radiation. During 2007-2015, the key indicators of skin cancer, i.e. sunbed use and sunburn, showed annual reductions of 6% and 1%, respectively. Objectives We aimed to examine the financial savings to society as a result of the campaign reductions in skin cancer cases (2007-2040), and to examine the campaign's cost-benefit and return on investment (ROI). Methods The analysis is based on existing data: (1) annual population-based surveys regarding the Danish population's behavior in the sun; (2) skin cancer projections; (3) relative risks of skin cancers from sunburn and sunbed use and (4) historical cancer incidences, combined with new data; (5) benefits from the avoided costs of skin cancer reductions; and (6) the costs of the Danish Sun Safety Campaign. Results The results were based on a reduction of 9000 skin cancer cases, saving €29 million of which €13 million were derived from sunburn reductions and €16 million from reductions in sunbed use. The ROI was €2.18. Conclusion Skin cancer prevention in Denmark is cost effective. Every Euro spent by the Danish Sun Safety Campaign saved the Danish health budget €2.18 in health expenses.