Market competition and global financial uncertainty have been the principal drivers that impel aviation companies to proceed to budget cuts, including decreases in salary and work force levels, in order to ensure viability and sustainability. Under the concepts of Maslow and Herzberg’s motivation theories, the current paper unfolds the influence of employment cost fluctuations on an aviation organization’s accidents attributed to human error. This study exploited financial and accident data over a period of 13 years, and explored if rates of accidents attributed to human errors of flight, maintenance and ramp crews, correlate with the average employment expenditures (N=13). In addition, the study took into account the relationship between average task load (ratio of flying hours per employee) and accident rates related to human error since task load, as part of total workload, is a constraint of modern complex systems. The results revealed strong correlations amongst accident rates linked to human error with the average employment costs and task load. The use of more specific data per aviation organizational department and professional group may further validate the results of this study. Organizations that seek to explore the 2 association between human error and employment budget and task load might appropriately adapt the approach proposed.
This article examines to what extent a social norm to work moderates the relationship between employment status and subjective well-being. It was expected that the detrimental impact of non-employment on subjective well-being would be larger in countries with a stronger social norm. Using a direct measure of the social norm to work and employing data from 45 European countries, this study assessed subjective well-being levels of five employment status groups for men and women separately. Results showed that subjective well-being of unemployed men and women is unaffected by the social norm to work. However, non-working disabled men are worse off in countries with a stronger norm. Living in such a country also decreases the well-being gap between employed and retired men, whereas retired women are worse off in these countries. This effect for retirees disappears when a country’s GDP is taken into account, suggesting that norms matter less than affluence.
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31-12-2014BACKGROUND:Knowledge on long-term participation is scarce for patients with paid employment at the time of stroke. OBJECTIVE:Describe the characteristics and the course of participation (paid employment and overall participation) in patients who did and did not remain in paid employment. METHODS:Patients with paid employment at the time of stroke completed questions on work up to 30 months after starting rehabilitation, and the Utrecht Scale for Evaluation of Rehabilitation-Participation (USER-P, Frequency, Restrictions and Satisfaction scales) up to 24 months. Baseline characteristics of patients with and without paid employment at 30 months were compared using Fisher’s Exact Tests and Mann-Whitney U Tests. USER-P scores over time were analysed using Linear Mixed Models. RESULTS:Of the 170 included patients (median age 54.2 interquartile range 11.2 years; 40% women) 50.6% reported paid employment at 30 months. Those returning to work reported at baseline more working hours, better quality of life and communication, were more often self-employed and in an office job. The USER-P scores did not change statistically significantly over time. CONCLUSION:About half of the stroke patients remained in paid employment. Optimizing interventions for returning to work and achieving meaningful participation outside of employment seem desirable.
This project aims to contribute to the transition from proprietary smart city software to the design & employment of ‘public software’ that can be deployed by cities in their operational and policy processes, in order to better safeguard public values. With the advance of smart city technologies, software deployed by municipalities can no longer be understood as just a productivity tool. The mechanics and algorithms operative in the software and the data it collects have become key elements in the execution of urban policy and have started to become a resource for decision making processes. That means that transparency and data-ownership are becoming important public values in software deployment. Most proprietary software systems that cities are currently using in their operations do not fulfill these requirements. Therefore a transition is needed to the deployment of what we call public software. To bring this transition about, for municipal governments it is important to learn more about the process in which public software can be procured, deployed and shared between cities. For creative industries players such as developers and creative agencies, it is important to gain further knowledge about what role they can play in this process and learn more about possible business models to sustain the production and upkeep of public software. This project addresses these knowledge gaps through three workshops in which the most important issues for this transition will be identified, leading to a Guide for the Deployment of Public Software as well as a research agenda and an international network of stakeholders.
Client: ERA-NET Cofund Smart Cities and Communities, JPI Urban EuropeUrban tourism generates income for cities and create opportunities for its businesses and employment for its residents. However, it can also lead to overcrowding, pollution, noise and numerous other problems, thus reducing quality of life for residents and other local stakeholders and potentially leading to public discontent. This project introduces SCITHOS as a concept that consists of guidelines and tools to help cities find solutions to make the transition towards environmentally and socially responsible urban tourism that simultaneously contributes to long-term prosperity.Within SCTHOS this is done by combining hospitality principles, simulation tools, apps and serious gaming techniques to support policymakers and other stakeholders in generating collaborative deep reflections about barriers to sustainable urban tourism and the need for transition or adaptation strategies. The project supports the assessment of intervention strategies based on an interactive simulation-supported multi-stakeholder approach that triggers social learning and behavior change, while stimulating shared governance and smart citizenship.Guidelines/ tools and the full concept are developed through a series of living labs and field experiments in participating cities. What is more, a Smart City Hospitality network is set up to ensure accessibility to this concept, including all tools and experiences with using them. The final results of the projects are presented 10 and 11 September 2019 in Vienna, as a pre-session to the popular annual Tourism conference (TOURMIS).
The ongoing debate over the use of fossil fuels, particularly diesel, in engines due to concerns about global climate change has prompted the exploration of alternative propulsion methods and fuels. Despite various proposed alternatives, diesel engines continue to play a vital role in the global market [1]. This discussion has spurred innovations aimed at enhancing the performance and sustainability of diesel engines, including the utilization of biodiesel mixtures, synthetic fuels, and water-in-diesel emulsions (W/D emulsions) [2-5]. Scientific evidence indicates that the presence of water in water-diesel emulsions can improve engine performance and reduce emissions, such as particulate matter and NOx [6,7]. This performance enhancement is attributed to the phenomenon of micro-explosion, or secondary atomization, caused by the differing boiling points of water and diesel [8]. The rapid temperature increase during fuel injection leads to the explosive vaporization of dispersed water droplets, breaking up the diesel emulsion into smaller droplets and resulting in a shorter combustion time. Various processes, including membrane emulsification, ultrasound emulsification, and high shear stirring, are employed to create these emulsions, often necessitating the use of surfactants for stability [9]. This research proposes a two-fold approach: firstly, the use of Electrohydrodynamic Atomization (EHDA, or electrospray) to create stable water-diesel emulsions. Secondly, the employment of magnetic fields in treating both diesel and water-diesel emulsions. EHDA is already used in several applications, such as drug encapsulation, bioencapsulation, thin film coatings and is also known for its ability to form stable emulsions. [10-13]. For the second approach, it has been shown that nanobubbles can be formed [17] and stabilized due to the electric charging action of magnetic fields [18]. We hypothesize that the charged bubbles can further stabilize the diesel-water emulsion and also enhance the explosive evaporation due to the additional Coulomb forces in play.
