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Mat som kontaminerats av radionuklider genom till exempel radioaktivt nedfall kan ge höga stråldoser till kroppen. Nuklider med långa halveringstider kan ackumuleras i kroppen och ge en hög tidsintegrerad absorberad dos. Personer med kronisk njursvikt kan erhålla höga stråldoser efter intag av radionuklider eftersom många radionuklider utsöndras via njurarna. I den här undersökningen har vi studerHigh internal radiation doses can result from food, contaminated by radionuclides from for example nuclear fallout. Nuclides with long half-lifes can accumulate in the body and give a high time-integrated absorbed dose. Persons with end-stage renal disease can receive high absorbed doses after intake of radionuclides, since many radionuclides are mainly excreted by the kidneys. In this study the d

The formation of smooth quasi-periodic patterns in static discrete reaction-diffusion systems of various kinds is here studied from a mathematical point of view. The regularity of the patterns can be attributed to the integrability of the system, so that, when searching for such patterns in a system, it is important to investigate whether or not there exist any conserved quantities. The work prese

Tillgång till tillräckliga mängder vatten av god kvalitet är en väsentlig resurs för samhället. Det behövs för mänsklig konsumtion, för produktion i industrin, för fisket, etcetera. Det är därför mycket oroande att vattenkvaliteten i Europeiska unionen successivt försämras. Östersjön som är mycket påverkad av övergödning kan nämnas som ett exempel. Övergödning orsakas av utsläpp av näringsämnen iThe supply of good quality water is an essential resource for society. It is needed for human consumption, for production processes in the industry, for fishing, etcetera. The fact that the quality of waters within the European Union is continuously deteriorating is therefore of major concern. One example is the Baltic Sea, which is heavily affected by eutrophication. Eutrophication is caused b

Metal contamination of lakes can bring negative effects to aquatic biota, and to the general health of the ecosystem. Urban discharge is a known source of common metals. In cold regions, snow disposal sites further enhances the risk of contaminating recipient lakes, due to accumulation of pollutants. The importance of this source is poorly known and is further investigated in this study. Metal con

Group exercise-to-music classes have long been a popular keep-fit activity and long criticized for their so-called alienating and objectifying aspects. Today there is an ongoing trend from the “freestyle” type where instructors chose their own music and moves, to the “prechoreographed” type produced by corporations like Les Mills International (LMI). LMI prepares standardized, class-in-a-box music

This master thesis examines if the policy of school choice, which was implemented in the early 1990s, may trigger segregation of different social groups in independent schools in the city of Malmö. The major actors for school choice are the parents, due to their responsibility to choose schools for their children. For the purpose of my research, the major focus lays on the factors that parents con

Previous research on hydropower projects impact on people’s socio-economic development has mainly focused on relocated people, immediately after they were relocated, arguing that relocation result in underdevelopment of people´s livelihoods. Henceforth, this research contribute to the literature through including a long-term perspective to highlight immediate and long-term impacts on relocated and

In this thesis I have presented possible indicators affecting boys’ educational attainments and learning behaviors. In my study I used both quantitative and qualitative methods. First, I studied the relationship between knowledge of relational concepts and later academic achievements. The data consisted of two different types of tests (Boehm Test of Basic Concepts and National Standard Tests). The