Bakgrund och problem: Naturgas utgör omkring 24 procent av den totala energiförbrukningen i Europa och användningsområdena är framförallt till produktion av elektricitet (Percebois, 2008). Naturgas har historiskt sett varit oljeindexerat, men marknaden har allt eftersom blivit avreglerad och en spotmarknad för naturgas har uppkommit. Trots avregleringen har oljepriset och naturgaspriset varit väl korrelerat, naturgas har prissatts efter oljan. 2008 började dock oljepriset stiga kraftigt vilket kom att leda till en så kallad ?supply and demand shock? (Melling, 2010).

As the media attention society on the world climate change, interest in the environment and social impact has increased. This has in turn made even more companies choose to maintain a sustainability report that contains the three aspects of economic, environment and social impact. The demand for sustainability reports has increased among stakeholders. It has made the companies that establish this form of reports experienced economic benefits. The sustainability report than became a useful way to compete among businesses.

The market of fruit and vegetables develops continuously to become tougher and more complex. The fast development makes it difficult to keep up with all the changes. This is the case for apples and tomatoes. The purpose of this work is to explain what the trade routes are like for Swedish imports as well as the Swedish production of tomatoes and apples, both in the present and the past times. There is also an ambition to create comprehension of the trade routes.

The acid deposition of sulphur- and nitrogenoxides from combustion of coal and oil cause acidification that lowers pH and gives increased contents of metals and altered aquatic biodiversity in the stream. The liming of lakes and streams, which was introduced to resist the acidification, demand large economic resourses despite of the decreased deposition of the acidifyng substances. Some of the streams are influenced by the acid deposition, while others are naturally acidic. It is therefore importaint to separate the anthropogenically acidified waters from the naturally acidic, in order to optimize the use of governmental fundings for liming. This thesis aims to estimate the acidity status and impact of acidification on 24 catchments upstream liming dispensers, which is part of the liming activities at the County of Dalarna.The acidity status of the streams was classified according to the Swedish Environmental Protection Agency old classification system (Naturvårdsverket 1999) as very acid to acid, with small ability to withstand a pH-change (alkalinity) due to acid deposition.

The purpose of this study was to examine health promotion and ill-health prevention in the workplaces of the City District Committees in the City of Malmö. More specifically, we wanted to find what types of health problems there were and what kinds of strategies were applied to prevent them. Furthermore, the aim was to examine whether the leaders of the City of Malmö saw any effects of the strategies in use and if so, which. Finally, the intention was to compare our empirical results to previous research in the field of health promotion and ill-health prevention in workplaces. We conducted a qualitative study consisting of semi-structured interviews with five leaders in different levels, two personnel secretaries, two employees assigned to improve the health of the personnel in the City Districts, and one safety representative.

The objective of this thesis was to develop a method for the planning of road upgrading at Holmen Skog, a Swedish forest company. A critical issue for creating such plans is to identify roads that are suitable to upgrade to a standard that can handle heavy traffic during spring thaw, since spring thaw is a bottle neck for transporting timber. The method was tested in a case study at a district. The work consisted of two parts. The first was to retrieve and prepare geographical data for the roads.

The purpose of this paper is to investigate on what basis a child is committed into care according to the law and to see on which grounds the decision about committed child care in law practice are taken when a child is committed to care due to parents who are mentally retarded. To better understand the juridical grounds for these decisions I will also in a short background describe the meaning of the term mentally retarded, how mental retardation and parenthood has changed over time and how different opinions are expressed in the law. Both people with mental retardation and children have in recent years gained their rights and sometimes these rights end up in conflict with one another. In those cases, what is in the best interest of the child, should be decisive. The children who have mentally retarded parents are at risk to not have their physical, psychological, emotional, social and intellectual needs met and are therefore being unfavourable developed.

Purpose: The purpose of this thesis is to analyze and evaluate essentialprerequisites for companies and corporations aiming at marketingglobal brands in a restricted market.Method:The investigation strategy used for this essay was to perform a casestudy on the Islamic Republic of Iran. Both primary data ? such as asurvey, interviews and participating observation ? and secondarydata ? found in books, scientific articles and the internet ? have beenused to achieve the results. The gathering of empirical data wasperformed inside the Islamic Republic of Iran during two weeks inNovember 2007 in three different cities: Tehran, Ispahân and Bâbol.This was carried out by considering several theories: globalbranding strategies, brand equity, involvement theory andcommunication models.Results: The outcome of this essay show several factors that should be takenin consideration in relation to marketing global brands in Iran. Manycompanies have chosen adaptation as their promotion? and productstrategy because of countless rules and restrictions hindering globalmarketing.

Because of an increasing demand from customers and changing external environment, there is a need for continuous improvements, for both manufacturing and service organizations, to meet these demands. Manufacturing organizations have been working systematically with quality improvements for a long time, but it has not been as common for service organizations. Because of that the methods to use for implementation of the systematic improvements have not been designed to fit service organizations, and not either for public organizations. The purpose of this thesis is to explain if and why the Swedish Road Administration?s organizational culture and handling of ideas and deviation support an implementation of continuous improvement management.

Title: Selection of audit firm - Which factors affects the choice of audit firm in Swedish limited companies?Subject: 4FE03E ? Master thesisAuthors: Alexander Rosén & Martin KarlssonSupervisor: Magnus WillessonExaminer: Sven-Olof Yrjö CollinKey words: Audit firm, audit firm characteristics, client characteristics, limited companyBackground: In Sweden, the auditor is selected when the company has their annual general meeting. Following, the auditor?s task is to secure the quality of the financial information so the owners and other stakeholders can trust the information, which regards to the financial situation for the company and the CEO´s and board of director´s management. Since November 2010, private limited companies are free to use and have an auditor, but only if they fulfils the requirements that are regulated in ABL 2005:551.

Ungulates are causing conflicts between stakeholders due to browsing damage on forests and agricultural crops. At the same time there is a big demand of keeping high ungulate densities for sports hunting and recreational purposes. Movement patterns of ungulates are strongly correlated with forage availability. Therefore, measures affecting forage quantity and distribution might be a tool to reduce the economical losses in forestry without decreasing the ungulate densities and thereby decrease the conflict between different interest groups.This study investigated the potential biomass production and utilisation of marrow-stem kale (Brassica oleracea var. medullosa), at game fields in Misterhult, Sweden, as well as browsing effects on adjacent forests.

Comfort analyses regarding human induced vibrationsIt is not too common among civil engineers in Sweden to perform comfort analyses considering the vibrations caused by human activities. In addition, the Swedish standards lack requirements to be used for comfort analyses in design of floor-systems. The demand for large spans in combination with slender slabs, is today a reason to investigate the floor-system constructions, in order to prevent disturbing vibrations and oscillations.The purpose of this thesis is to create a guide for how a comfort analysis, considering vibrations, should be implemented. Göran Svedenbjörk who is an expert in structural dynamics has been interviewed where he presents his latest project Värtaterminalen and answers some questions about vibrations due to human activities.Floor-systems, consisting of concrete slabs supported by steel or concrete beams, have been investigated with simulations in the finite element program Abaqus. In the simulations, the influence of various factors on the natural frequency of floor-systems and the acceleration level caused by dynamic loads, is studied.

Ökande sjuktal och lägre frisktal gjorde att Luleå kommun startade projektet Hälsofrämjande arbetsplatser. Projektet går ut på att förbättra hälsa och välbefinnande hos de anställda inom kommunen, med fokus på hälsofrämjande och friskvårdsarbete. Syftet med detta examensarbete är att undersöka den psykosociala arbetsmiljön inom en enhet i Luleå kommun, samt att kartlägga hur kommunen utifrån detta kan arbeta med, och skapa engagemang kring, hälsofrämjande arbetsmiljöarbete. Examensarbetet utgår från Karasek och Theorells (1979) Krav-kontroll-stödmodell, Siegrist (1996) Ansträngnings-belöningsmodell och Känsla av sammanhang av Antonovsky (1987/1991). De undersökta frågeställningarna är: Hur upplever medarbetarna sin psykosociala arbetsmiljö? Hur upplever medarbetarna det hälsofrämjande arbetet och hur kan engagemang kring det hälsofrämjande arbetet skapas hos medarbetarna? Tio medarbetare inom en enhet i kommunen har deltagit i semistrukturerade intervjuer, som har analyserats genom en teoribaserad tematisk analys.

The intention of this thesis is, from a basic statistical viewpoint, to capture the relationship between the price of electricity and a sample of factors influencing the price. The thesis also aims at investigating whether knowledge about the relationship is useful when investing on Nord Pool. Tested factors are temperature, import, price of emission rights as well as a number of hydrological factors. The investigated period stretches from year 2000 until week 32 year 2007. The relevance of each factor was also evaluated yearly as well as for shorter periods in order to get a more comprehensive view of the relationship.

Miljöbron is a non-profit organization; their main purpose is to merge companies and students into different environmental projects. The projects can be an assignment, practical vocational training or degree thesis. Miljöbron is expanding and the demand from students and companies is rapidly growing. Because of the expansion, a large amount of information needs to be stored and managed in a structured database. Also the need of a interface that is structured and easy to use when managing information and Miljöbron?s statistics, for Miljöbron?s staff.