AbstractThe dependency of fossil fuels in the transport sector causes large emissions of carbondioxide. This problem can we reduce by using vehicle gas from digested solid manure and leftover of pasture. I have studied the potential for this in the county of Västernorrland. Thepurpose is to investigate how much vehicle gas that can be extracted.One central, large scale digestion and upgrade plant should be placed in Härnösand. Theamount of pasture and manure that is economical and practical available is enough to produce2,7-3,5 millions Nm3 vehicle gas.

The purpose with this work is to investigate the cost to produce piglet in a case study company. The starting point is going to be the agriwise (www.agriwise.org) calculation which I am going to change and adapt to the case study company. To day the pig market is bad but we have probably reached the bottom. The market has started to rise. It is no business to produce piglets today.

The use of fossil fuels such as coal and gas are a contributor to the global warming. The climate change is a worldwide problem with far reaching consequences that is believed to be very expensive. The United Nations has been introducing a framework convention on climate change. One component of the convention is the Kyoto protocol. The protocol is obligating the developed countries to decrease their emissions of greenhouse gases by 5.2 percent during the time period 2008-2012.

How teachers teach children with attention difficulties. This is a qualitative interview based on the experiences of four teachers. I want this study to examine teachers' experience and views about ADHD diagnosis. I would also like to find out what teachers do and think about the practice which surrounds students with ADHD. How to formulate and think of four active teachers about ADHD? What are the implications of the diagnosis perceive the four teachers interviewed that the diagnosis must for students? Among the measures that consider the four teachers interviewed are most effective for students with ADHD because they provide an equal education? Those questions are addressed to specifically learn about how they proceed in their activities.

The difference between the public sector and the private sector in Sweden was once very small. These sectors have been united as well for the people, the organizations as for the finances. During the 1960´s and 1970´s the public sector in Sweden was expanding and after the 1980´s the people started talking more about an expanding private sector instead. The year of 2007 Hökarängen Hemtjänst Ekonomisk Förening submitted a tender to Äldreförvaltningen about a purchase of the home- help service in Hökarängen and they accept there tender.Exposing public organization for competition can be a good way to make sure that most value for the money is created and that it generates the most cost- effective organizations. The motivation factor is used to describewhat makes people perform more than what is expected of them.The purpose of this study is to describe and explain similarities and differences in working- motivation between those how are members of Hökarängen Hemtjänst Ekonomisk Förening and those how are not.

Several technical solutions are ready to step forward as the new generation of propellant, and this report aims to explore the possibility of commercializing fuel cell cars. The report is based on current research and data from today's technology and engineering solutions that are estimated to be commercially realized before 2020.A mapping of today?s different fuel cell options has shown that the most suitable fuel cell option is the Proton Exchange Membrane Fuel Cell, which uses hydrogen as fuel. The report is focusing on a techno-economic well-to-wheel analysis of hydrogen and the energy balance and costs in a system perspective. The basis for this analysis consists of two centralized methods of production, steam methane reforming (SMR), and alkaline water electrolysis.

Today´s roofing of dwelling houses is a very time consuming procedure, which includes a lot of different steps on the construction site. Not only does it cost a lot of money, but often do problems with rot and mold occur in the attics of houses today. The use of prefabricated modules has seen a great breakthrough in the field of construction of dwelling houses; at least when it comes to foundations and walls, where this type of approach makes the construction process way more efficient. What no one previous has succeeded to develop is a corresponding system for roofs that meets the demands of a dwelling house. Accordingly the goal of PlusTak has been to come up with a proper module system for roofing of dwelling houses, where the roofing is completed to meet the demands of the Scandinavian market. During the project a lot of effort has been put into customer contacts and the usability of the product, as well in the manufacturing process as on the construction site. This development has gone hand in hand with several practical tests and tryouts.

This thesis is written on behalf of Skanska, Väg- och Anläggning Stockholm Mälardalen, vid Nya Karolinska Sjukhuset i Solna, NKS. The report has resulted in recommendations for the method of soil stabilizations of soil nailing, excavation of slope and fiber reinforced shotcrete, which is the most suitable method from a safety and a cost point at the NKS.The aim of this thesis was to investigate whether fiber reinforced shotcrete increases slope stability, with the focus being on the total stability. The main goal was to investigate which method of soil stabilization is the most suitable for the slopes that are analyzed in this report. Through studying literature, the authors have gained an understanding about the theoretical background for the given problem. Through calculations and analyses of the slopes, safety factors have been acquired.

The purpose of this essay is to investigate if the companies listed on Nasdaq/OMX Stockholm Large Cap use the earnings management phenomenon Big Bath Accounting to a greater extent when a change of management (CEO) is made.Management tends to use earnings management when there is a bonus plan linked to the result of the company. To gain maximum bonus the management will try to manipulate the result in a way that in a long term maximize their utility. Through the earnings management technique Big Bath the management is given the possibility to take one large cost as a one-time expend, even though the cost is supposed to run over several financial years. This, of course, within the legal framework. A big bath may occur when there is an impairment of goodwill, tangible and/or intangible assets or larger provisions for future expense, or both of them at the same time..

This essay examines the historical development of group rights for cultural minorities in Sweden between the years 1970 and 2010. The purpose of the study is to analyze the development of political measures taken at government level for different minority groups, foremost explaining the division that have arisen between measures aimed at the five national minorities, the Sámi, the Swedish Finns, the Roma, the Jews and the Tornedalians, and measures directed at other ethnic groups.My conclusions are that the division in Swedish public policy between one the one hand national minorities, and on the other hand immigrant groups, is in no way self-evident. The division has arisen from an international standard on how democratic states, such as Sweden, should treat their cultural minorities. Further, this division has had an immense impact in shaping public policy as well as determining the type of group rights introduced for minority groups in Sweden.A difference has also been found in how the minorities are perceived by state actors. Immigrant groups are currently perceived as less entitled to group rights due to their short presence in Sweden, whereas national minorities are seen as more entitled to group rights due to their long historic presence in the country.

Profit in first commercial thinnings of today is hard to achieve. This is because of prevailing pulpwood prices and because of high costs of logging and transport. To reduce these costs higher productivity is advocated. One way to increase the productivity is the use of multi-tree handling harvester heads. The aim of this study was to calculate logging and transport costs in first thinnings, where multi-tree handling has been used.

Microproduction, also called distributed generation, is something that has become more and more popular in the electric grid. Microproduction can however lead to unacceptable performance if several units are installed in the same low voltage network. It is therefore good to know a limit where the performance of the low voltage network becomes unacceptable based on given parameters. This limit is usually called hosting capacity.In this report the hosting capacity with respect to voltage and current have been studied in three low voltage networks which are located in Falu Elnäts concession area. This has been done by simulations in a GIS-program where critical times of the grid have been simulated.

Forestry and reindeer husbandry are entitled to use the same land for their operations. For this reason, conflicts occasionally arise between them. Soil scarification is a forestry operation which has a negative effect on the occurrence of reindeer lichen. Reindeer lichens are of crucial importance to reindeers and reindeer husbandry, especially in the winter when reindeers primarily feed on different lichen species (Cladina spp. and Cetraria spp.).

The purpose of this project is to study Partab's material distribution process, furthermore identify critical problem areas within the company. Further the aim is to provide suggestions to new work procedures regarding material distribution and related processes. Appropriate literature has been used as a support in this process. The main goal of a commercial company is to generate cash flow, and maximize the return on investment. Streamlining material supply and the use of material is a part of this process. Virum and Persson define logistics as: "Logistics is the approach and principles founding the process of planning, development, coordination, organisation, management, and control of material distribution from supplier to user".

A persistent problem in the construction industry is its low margins of profit. It is often difficult to earn money due to low efficiency and high costs. Logistics on the construction site answers for a large amount of these costs and it is therefore of interest to find new, more efficient logistic solutions. The purpose of this thesis is to compare two different logistic systems and further to evaluate which one that is the most efficient and profitable. A comparison is made between the traditional logistic systems used for years and a new logistic system developed by an industry association called BEAst.