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Filtration through porous media is the oldest form of drinking water treatment and, to this day, constitutes a focal point of research in water engineering. Mathematical models of filtration are often used in conjunction with supplementary models of concurrent phenomena. For instance, both fluid flow inside and outside the filtering medium are of interest, and models of both flow through porous me
Why are some men attracted to misogynistic groups? Drawing on literature on intergroup threat, we hypothesize that men who perceive that their status is threatened are more likely to engage with misogynistic groups. We also hypothesize that anger reactions to such threats is an important mechanism explaining why perceived masculine status threats lead to such engagement. In a survey (N = 2,751) we
Sweden is one of the countries in Europe with the largest percentage of volunteers in the population. At the same time, challenges in the society are increasing. Events such as the migration crisis 2015, the wildfires 2018 and the Covid-19 pandemic have shown an expanding interest among people to contribute to society. As a private person it can be hard to know where to start when wanting to becom
The attention to the environmental impact of plastics materials used in food packaging has produced several studies in the last decade and consumers have started wondering about the utility and the functions of food packaging. In fact, the use and the production of plastic polymers cause pollution due to the disposal and to the CO2 emission. Besides that, even if new polymers from organic and biol
Numerous empirical studies have discovered that parenthood affects women’s earnings negatively, while men face much smaller penalties and even experience both fatherhood and marriage premiums. This paper uses a cross-sectional approach to analyze the earnings penalty of motherhood and fatherhood in Sweden. It also investigates various earnings penalties experienced by parents, such as the effects
Popular Abstract in Swedish Många industridesignkonsultföretag har som ambition att anta en strategisk roll i sina kundföretag. Design ses i detta sammanhang som ett viktigt konkurrensmedel med en kreativ process som stödjer en innovationsdriven verksamhet. Samtidigt saknas ofta kunskap, framförallt i små och medelstora företag - SMF, om hur designmetoder och processer kan bidra utöver skapandet aWhile the design industry is moving into new domains, it seems that potential customers do not always understand how the designer can contribute beyond the aesthetically appealing product. The overall purpose of this thesis is to expand our understanding of design as an enabling service in the context of small and medium sized enterprises. Enabling design services have the potential to result in o
This paper describes a method to measure the permittivity and the permeability at temperatures from room temperature up to 1000 C using a single rectangular waveguide. The hardware design of the setup that can handle these temperatures and the procedure that is required to correct for the thermal expansion is developed. This includes the sample displacement, the displacement of the calibration ref
