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.

In total 249 horses surgically treated for colic in Sweden during 2002 until 2005 were studied. The horses was identified by the animal insurance company Agria. Survival was studied with respect to age, gender, breed, diagnosis (small intestinal problems, caecal problems, large intestinal problems, incarceration in nephrosplenic ligament, unspecific colic and other colic problems) and treating hospital. Different survivals were calculated. For short-term survival proportions was used and for long-term it was done using Kaplan-Meier technique and log-rank testing.

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.

KSL Trading Inc is a trading company in the Jönkoping area that distributesmaterial for the furniture and interior design industry.The purpose of this report is to analyze the existing material flow andwarehouse layout as well as to identify the issues there are today at KSL?swarehouse for board material. When we identified what kind of problems thatexisted we were able to design a new plan for the material flow and storagepossibilities. The problems we found where:? There is no well-organised warehouse layout? There are no routines to keep the warehouse clean and in order? There is no formed plan how to handle materialTo solve these problems we have used different methods like interviews,observations, calculations and literature studies.

The work as a personal assistant is sometimes associated with certain problems. Studies have shown that personal assistants often experience indistinct rules and roles concerning what should or should not be included in their duties. This study was undertaken to evaluate problems associated with the profession as a personal assistant, how widespread they are and how they are dealt with. Specifically, the study evaluates if the personal assistants have to do duties that they consider they are not assigned to do. Different roles (formal as informal) are also discussed which may be of current interest in this study, but also how we see people on basis of ethics and moral.

Umeå University currently uses two Course Management System, Moodle and Sakai (Cambro). Both Moodle and Sakai are based on open source code and are today the two more popular choices among Swedish Universities. They both have different strengths and weaknesses both from a technical perspective and a user perspective. This can create problems for a course responsible/teacher when it comes to planning the course structure at a distance course but also when planning the course structure on a campus course that uses a Course Management System. With this as my starting point my formulations of questions become:How do the Course Management Systems that Umeå University uses differs, both from a technical perspective and user perspective?What possibilities is there in the Course Management Systems to use a different Course Structure?Is there a noticeable difference on the view of Course Management System of teachers and students at different departments?The purpose with my essay is to create a basis that course responsible/teacher can use to plan the course structure.

This report is about the issue with decreasing production rate mainly caused by failuresrelated to the multiswitch. The multiswitch is a machine at Gefleortens Mejeriföreningwhich has the function of distributing milk cartons from one incoming track into fiveoutgoing tracks. Milk cartons who gets stuck and there by causes the production to stop,is the mainly problem with this constructionThe purpose with this report is to understand the causing factors and make suggestions which can help solving these factors. By analyzing the machine during production, having contact with different suppliers, searching internet for information, 3d-cad drawings and the complementary with personal experiences, this machine has  been evaluated and as a result of this new problem has come to be known.The discovered problems was analyzed and resulted in new suggestions for alternative options. Later the most functional results was chosen and put as a suggestion for the new model.A new machine built with the suggestions from this report assures to be well adapted to the environment at Gefleortens Mejeriföreing and the problems it causes..

Several industrial scandals, especially those about Enron and WorldCom, have lead to an intense debate about the independent audit and the independent auditor. A substantial part of the auditor?s income originates from counselling, and therefore the role of the auditor may be seen as double, and the auditor?s objectivity may be questioned. In the year of 2002, a new Auditors Act was legislated in Sweden. In the 21 § of the act, a model based on principles was introduced, to test the auditor independence in every single case.

This thesis deals with the problems you face as a new game developer for the mobile platform Android when developing a 3D game and presents solutions to these problems. It also explores which optimizations should be made to increase performance and how well suited for game development the Android platform is. A simple 3D game for version 2.2 of Android was developed to examine this. The conclusion was that a good game structure for Android separates logic and rendering by running these separately in different threads. Solutions to rendering and updating of game logic were presented and optimizations were implemented for performance, although fewer optimizations were needed than was anticipated.

States have sovereignty in deciding how to tax business profits. If two states wish to tax the same profit that belongs to the same taxpayer, double taxation will arise. The increasing number of multinational companies gives rise to double taxation problems and the states have to co-operate to find out how to avoid such problems. The OECD Model Tax Convention includes an article in how to determine the rights to tax business profits. This article has been a subject of discussion and a committee of the OECD has been working to develop a new article 7.The work in proposing this new article has had as its aim to reassure that the interpretations of this regulation is made in the same way.

The works of an employee within an authority involves many laws and rules that have to be followed at the same time every case is unique and the resources are limited. This study wants to illustrate how national environmental goals are applied by länsstyrelserna in Sweden. How does the implementation of the environmental goals works by länsstyrelserna in Blekinge, Skåne and Örebro län? Which problems creates obstacles in the implementation of the environmental goals according to länsstyrelserna? What differs between länsstyrelserna in the implementation? Mainly it is the complexity of problems that will be illustrated here, which may result in different implementation sof the environmental goals by länsstyrelserna or that the environmentalgoals do not applys like intended. In this study sixteen national environmentalgoal are examined; ?fresh air?.

For better understanding of how users interact with the video on demand service Netflix a study was conducted in 10 Swedish households. This study is based on the well-established heuristic evaluation method of Jacob Nielsen, which we modified slightly by letting the users to act as ?evaluation experts? and informing them about the heuristic rules of thumb during the evaluation process. The purpose of this study was to identify usability problems when people interact with Netflix? interface.

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.

This is a qualitative study where the purpose was to investigate what professionals experience to be the reason for an individual to become addicted to gambling and continues to gamble even though it leads to negative consequences. The purpose was also to investigate what the professionals experienced was of importance for an individual to recover from a gambling addiction. The study was based on qualitative semi-structured interviews with knowledgeable individuals in the field. The main findings of the study were that the motivation for individuals with a gambling problem to continue gamble was that they saw gambling as the solution to their problems by winning back lost money. It was common that gambling was an escape from anxiety, guilt, shame, and other gambling-related problems such as financial liabilities.

The aim of this study is to analyze how problems are represented within SOU 2008:27. Further more, the aim is to analyze how the new subject plan for history can bee seen as a product of this document. The method used, and the theoretical frame of the study, is based on Carol Lee Bacchi?s ?what´s the problem represented to be?? approach, which basic principle is that policies are filled with representations of problems and that these representations need to be examined. These problem representations are then themselves subject for scrutiny, the second step being an analysis of the texts presumptions and assumptions concerning view of man and perception of knowledge. The results show, among other things, that a problem representations can be found in the SOU; the school system is too vague and unclear.