In Sweden more than 400 000 private households have not yet sufficient wastewater purification. These effluent is considered as an increasing problem and many onsite purification methods have been studied. In this investigation, the method of reactive bed filters have been tested by column and batch experiments. Five different kinds of filter materials with reactive surfaces have been studied concerning their capacity to absorb ammonium and phosphorus from wastewater. The materials that were examined are Filtra N, wollastonite Filtra P, blast furnace slag and Polonite®.

The main purpose of this essay is to investigate if Latvia´s pattern of trade has become more similar to the mature market economies, after Latvia´s independence 1991.Today, the intra-industry trade (IIT) dominates the trade of mature market economies. One of the pioneers of intra-industrial trade is Paul Krugman, who was the first to emphasize the importance "of scale and consumers' desire for variety" in explaining the basis for modern commerce. Customers get more variety and usually cheaper goods when the market gets bigger. I mainly use the modern trade theories to explain the trade pattern in Latvia. To measure how Latvia has developed its intra-industry trade, and thereby is approaching the mature market economies´ trade pattern, I use the Grubel-Lloyd index (GL-index).

This thesis will portray the different types of students at the programs of library studiesin Lund and Umeå.The study is based upon quantitative information gathered from a survey, which wasdistributed to first-year students in Lund and Umeå. The survey was followed by qualitativeinterviews with four students, and with the director of studies from each school.The study shows that the programs, as we11 as the students, are very similar, althoughthere are some minor differences. It seemed that the students at Umeå were moreinterested in culture than those at Lund.A certain connection between the aim at information and the ownership of a computercould be detected. The sex of the students played a major part in their choice of education.The attractors and facilitators, used by Lortie in his study, could also be appliedto the students at the program of library studies in our thesis..

Nitrogen deposition leads to environmental damage in areas where the nitrogen deposition is high. Southwest Sweden receives an annual nitrogen deposition of up to 20 kg N/ha. Nitrogen that is not assimilated by the vegetation is accumulated in the soil, which may lead to nitrogen saturation and an elevated risk of nitrogen leaching. Nitrogen leaching from forest areas in southern Sweden has proven to be higher than from agricultural areas, which have been thought to be the main contributors to elevated nitrogen levels in rivers and lakes. The amount of nitrogen that leaches depends on the fraction of the total nitrogen in the soil that consists of nitrate, since nitrate is easily transported through the soil.

When performing studies that test the reactions of horses in different situations, important information may be available about the horse?s reactivity level. With information from these tests, accidents and dangerous situations may be prevented. When the behaviours from tests are compared with race performance it may be possible to evaluate if some behaviours are more desirable at the race track than others. The aim of this study was to see if behavioural responses correlated with physiological parameters (heart rate, cortisol), the trainer?s opinions and actual race performance.

The global climate change affects the Arctic region the most. The decrease in arcticsea ice is one of the reasons why, it accelerates the warm-up of the region.To understand the changes in the Arctic climate, knowledge about what affects thechanges in the sea ice is necessary. One of these processes could be the relationbetween the extent of the sea ice and the concentration of sea salt aerosols in thearea.This work studies how a variation in the arctic sea ice extent affects theconcentration of sea salt aerosols at Barrow, Alaska. To do this aerosoldata, icedataand winddata has been analyzed over the years 1998-2007. The results shows that aseasonally variation in the sea ice extent affects large aerosols (1-10 ?m) whilesmaller aerosols (<1 ?m) doesn?t seem to be affected as much..

This report investigates what attitude private forest owners in the County of Stockholm, Sweden have towards biodiversity landconservation. Private landowners were asked to answer a questionnaire containing questions about there property and there attitude towards biodiversity. The results show that private landowners attitude towards biodiversity is affected by, amongst other things, the size of their property; a larger property have a more negative owner than a smaller property. A landowner that lives on his property has a more negative attitude towards biodiversity than a landowner that?s not living on his property.

This essay is about two areas called Hackås and Myrviken, situated in the middle of Sweden around the lake Storsjön. In Hackås we can see traces after an early agrarian settlement, and in Myrviken we find Jämtlands largest concentration of ironmaking sites from around 400 AD. There are no clear evidence of the agrarian settlement in Myrviken, and only two ironmaking sites in Hackås. These two economies functioned at the same time, but were clearly separated. My purpose is to discuss if it was the farmers of Hackås who made iron in Myrviken, or if it was somebody else..

GE Healthcare operates in Uppsala (Sweden) and develops systems, equipments and medium to purify medical substances. Discussions with the local authority concerning planed far-reaching changes and upgrades of the biological process techniques for sewage management, aroused the question about revising the terms of permit for the activity. Therefore it seemed necessary to evaluate a newly installed biological process technique, which is the background of this thesis. The evaluated biological treatment process was built in 2003 and consists of a biological reactor filled with moving bed carriers with a high surface area for biological growth. At the time of the project the biological wastewater treatment plant consisted of a flow equalization facility and two following parallel biological processes; a biological reactor with moving bed carriers and a tower trickling filter.The aim of this thesis was to survey the function of the biological reactor with respect to the reduction of organic matter.

During the past few years a vast amount of research has been done to increase the understanding of the complex ecosystem of the Baltic Sea. Modelling and simulations are important tools to increase knowledge of the system. A suitable model must be simple to use and the parameters and variables needed in the model must be easy to access.In this paper a dynamical mass-balance model, CoastMab, which is validated for smaller coastal areas, has been used to predict concentrations and transports of phosphorus in three large coastal areas - the Gulf of Finland, the Gulf of Gdansk and the Gulf of Riga. CoastMab uses ordinary differential equations to regulate inflow, outflow and internal flows. To reflect seasonal variations in temperature and different types of flows the model has a temporal resolution of a month.

The stability of railway embankment is essential for safe transport. In order to ensure safe transport, water should be allowed to freely drain. Furthermore, as the engine driver has to be able to see signs, and people working on the embankment are supposed to easily see flaws on the rails to ensure safety for the passing trains, plants should not be allowed to grow on the embankment. In Sweden there are 12 000 kilometers of railway tracks and 25?30 % of them are treated for weed control every year.

The aim of this study is to examine the factors that motivate people to seek employment at a start-up company. We have conducted a qualitative study by interviewing ten people at six different start-up companies in Stockholm. Empirical findings show that the interviewed are mainly motivated by the possibility to work with challenging work tasks and the possibility to influence and acquire responsibility. Furthermore, status and other self-fulfilment factors such as building something from scratch that can create value and the possibility for a potential ownership is also contributing to the interviewed motivation to seek employment at a start-up. Factors such as an attractive labour market and a possibility to take a temporary break from the university, have contributed to the overall low risk perception of working at a start-up company.

Syfte: Meningen med studien är att bidra med en större förståelse och förhoppningsvis nya insikter om konsumtionen av lyxprodukter inom matbranschen genom att integrera redan existerande teori med empiriskt material. Syftet är att ur ett företagsperspektiv beskriva hur en förståelse för konsumententbeteende kring exklusiva matprodukter kan användas i marknadsföringen av dessa produkter.Studien riktar sig till människor, forskare samt organisationer som är intresserade av marknadsföring av lyxprodukter, men är även riktad till människor med intresse för nutidens konsumtion. Vidare motiveras studien ur ett etiskt perspektiv genom att belysa fenomenet kring dagens konsumtion och göra konsumenter medvetna om drivkrafterna bakom sitt beteende.Problemformulering: Hur kan företag som säljer exklusiva matprodukter använda förståelsen för konsumenternas beteende i sin marknadsföring? Vad kan vara bakgrunden till att konsumenter väljer att konsumera högkvalitativa och exklusiva matprodukter? Hur kan företag kategorisera in dessa konsumenter i olika konsumentgrupper? Var och vid vilka tillfällen väljer dessa konsumenter att konsumera exklusiva matprodukter?Metod: Studien är en kvalitativ studie där en kombinerad fall- och tvärsnittsstudie är genomförd. De data som samlats in och ligger till grund för studiens resultat och slutsats är genomförd genom litteraturstudier, intervjuer samt en frågeenkätundersökning.

The quality of bread wheat is a large subject to study. The quality rests on two legs. The first one is the inheritance of specific characters, which can be influenced through plant breeding and type of cultivar. The other one is the environmental influences, such as crop rotation, nutrition, harvest and storage. The latter factors are possibly to affect through cultivation practices, while other factors are not possible to influence on for the grower, such as seasonal changes of weather and the soil content.

We examined why file sharing is such a widespread phenomenon and what drives the persons that using file sharing, and what consequences it has on their consuming and ownership. We reached our goal by interviewing ten people who download files, using a qualitative method. We present the internet community where sharing files, copyright and the IPRED law are important ingredients for how the new generation consumer?s patterns look like. Today you can travel all over the world with a push on a button in just a few seconds.