Detta arbete presenterar enmatematisk optimeringsmodell gällande val av Prefableverantör för Spinactor ABmed avseende på inköpspris med volymrabatt samt transportkostnad. Utöver dettatillkommer en kvalitativ undersökning om vilka andra kriterier som ärbetydelsefulla vid leverantörsavtal. De viktigaste kriterier applicerades i enegenutvecklad leverantörsvalsmodell som bygger på ramverket ?total cost of ownership?(TCO) där leverantörskriterierna kvantifieras. Utifrån kriterieanalysenframgick att de tre viktigare leverantörskriterierna för Spinactor AB idagsläget är leveransprecision, kundservice och kommunikation samt ekonomiskstabilitet.Lösningen av optimeringsproblemet genomfördes med två olika metoder,linjärprogrammering samt heltalsprogrammering, där linjärprogrammering vardominerande i lösningstid.

Since the beginning of the 1900s Sweden has had laws and rules governing the ownership of agricultural and forest land. The foundations of the current Land Ownership Law, ?Jordförvärvslagen 1979:230(JFL)?, are from 1979. The most recent review and adaptation of the law occurred in 2005. Its main purpose is to prevent a passive ownership of land in Sweden and to ensure that the land is actively worked.

This thesis aims on adding another piece to the puzzle that is the supplier relationship research. Taking its base in a series of articles regarding the transformations of global supply chains into more long-term profitable ones. Two research questions are presented, one regarding long-term supplier relationships and one regarding the main criteria?s while evaluating new suppliers. With an emphasis on the long-term relationship and profitability are five medium sized Swedish manu-facturers examined through semi-structured interviews.

In order to facilitate testing of anesthesia machines a patient simulator has been required by Maquet Critical Care AB. A patient simulator has been developed to reduce expensive and time consuming animal experiments and temporary lab arrangements. The patient simulator has been developed and designed to simulate human lungs with regards to anesthetic uptake, production of carbon dioxide and heating and moisturizing exhaled air.The system comprises a container and a test lung to simulate the volume and the dynamic of the human lung. The simulation of uptake of anesthetics has been implemented by pumping a fraction of the gas from the container through a bypass circuit with an active charcoal filter that adsorbs volatile anesthetics. The flow through the bypass circuit is generated by a pump and is controlled by a linear valve.The resulting performance of the patient simulator has fulfilled the requirements.

There is an increased pressure for firms to provide the financial market with additional information. Such disclosure is attached with different kinds of costs. In spite of these costs, and in spite of increased mandatory disclosures, firms choose to voluntary disclosure financial information to analysts and others. This indicates that firms also benefit from providing additional information. The subjects of this study is 431 annual reports from firms listed at the Stockholm Stock Exchange for 2002 and 2005 and the objective is to survey factors that can explain variations in firms? voluntary disclosure.

During the last few years the presence of high arsenic (As) concentrations in ground water has been of major concern both internationally and in Sweden. Much evidence has been reported about toxic effects caused by arsenic. The carcinogenic effects and the possibility to measure the toxic impacts at low concentrations made the World Health Organisation (WHO) to reduce the guideline value from 50 to 10 ?g l-1 in 1993. In Sweden the corresponding reduction was implemented in 2003. Several surveys in Sweden have shown that high arsenic concentrations may occur in ground water.

The new Swedish Companies Act allows Swedish companies to issue two instruments that were previously prohibited: mandatory convertibles and participating debentures. The aim of the thesis is to conduct a cross sectional study of Swedish corporate hybrid securities, especially in the light of the new Companies Act. The cross sectional study also includes areas such as credit rating, accounting and tax. The thesis concludes that it is possible, under Swedish law, to issue corporate hybrid securities that qualify for both high equity credit and tax deductible interest payments. The use of certain hybrid provisions are, however, restrained by Swedish company law.

Waste appears to be a low-cost fuel compared to biofuel. This Masters thesis was conducted for Vattenfall Utveckling AB and deals with how waste in the fuel affects the performance of a SCR-catalyst. Different mechanisms of deactivation were surveyed, focusing on the poisoning mechanism. A literature study was carried out, which was used as a reference when analysing the results.Small samples (9x2x2 cm, 64 pieces) cut out from a full-scale unused honeycomb catalyst were exposed up to 1500h in two different combustion plants, Johannes in Gävle (co-combustion) and Högdalen in Stockholm (waste-combustion). The activity was measured mainly at 300°C but also at 250, 350, 375 and 400°C.

This thesis serves to examine how manufacturing SMEs consider outsourcing. Furthermore, we aim to identify the main characteristics and patterns for these types of companies that can explain their rationale in such a decision. The chosen method for this thesis is abduction and selected research approach is multiple case studies. Seven case studies have been conducted at EAB AB, Esbe AB, Hörle Automatic AB, Pelly Industri AB, SGV Industrier AB, Swede-Wheel AB and Wulkan AB. Our findings have illustrated that although traditional outsourcing theory provides a good platform for explaining the rationale behind outsourcing decisions in SMEs, we have identified additional considerations that SMEs, operating as 2, 3 or 4-tier suppliers towards OEM-corporations, make.

I tidigare forskning finns ett samband mellan socialt stöd och reducerad stress. Även husdjur påverkar stressnivån. Denna enkätstudie tittade på om husdjur och civilstånd påverkar hälsa och stressnivå. Av de studenter som deltog i studien hade 35% husdjur. Resultatet visade inte på någon effekt på stress av att ha husdjur.

This master thesis has been a pilot study preceding a forthcoming project of a larger scale with the long term objective to separate the direct effect of added nitrogen on soil processes from indirect effects via trees. The aim of this study has been to investigate the allocation of nitrogen following direct injection of liquid solutions into the xylem of 40 year old Norway spruce. The field site is located at Flakaliden (64°07?N, 19°27?E), approximately 60 km northwest of Umeå, Sweden. A total of 18 trees were selected for treatment, equally divided between three treatments, potassium nitrate, glutamine and water (control).

The thesis handles the principal-agency problem between shareholders and the Chief Executive Officer. The purpose of the thesis was to examine the link between CEO compensation and corporate performance measured as a change in Market to Book ratio. Data was collected from corporate annual reports between the years 2000 ? 2008 and the study covers 39 Swedish companies from the Stockholm Stock Exchange Large Cap list. To examine whether there is a link between the CEO´s compensation and firm performance, we performed a regression analysis, and no significant relation is found.

Syftet med denna studie är att jämföra hur förekomsten av resultatmanipulering ser ut i företag med olika ägarstrukturer noterade på de svenska börslistorna under åren 2005-2008. Vi har valt att definiera tre grupper av företag: familjeägda företag, företag ägda av investmentbolag och övriga företag. För att identifiera skillnader i resultatmanipulering väljer vi att jämföra medelvärden på godtyckliga periodiseringar hos de olika företagsgrupperna genom ett oberoende t-test, sedan utförs regressioner för att försöka förklara potentiella skillnader. Studiens resultat visar i likhet med tidigare forskning att förekomsten av resultatmanipulering är lägre i familjeföretag i jämförelse med övriga företag. Vårt resultat tyder även på att det inte existerar någon signifikant skillnad mellan företag ägda av investmentbolag och övriga företag vad gäller förekomsten av resultatmanipulering..

This essay has examined the effects that new issues had on the four Swedish football clubs that are organized as sport limited companies. The difference between a limited company and a sporting limited company is that the clubs always have majority ownership by the 51% rule. Previous research on sport limited companies and on new issues has been associated with the agent theory and the pecking order theory in order to explain the effects.The thesis is a qualitative study with an inductive approach, where the interviews have been selected as the method of collecting data. Through the years the clubs have performed new issues several times. The study says that the clubs perform a new issue for two reasons, either for investment purposes or because they have a poor economy and must collect liquid assets.

Storm water is defined as runoff from precipitation such as rain or snow. It is collected in sewage disposal systems and since it mainly originates from urban areas it can contain high levels of heavy metals, nutrients and oil etc. Polluted storm water is currently treated by different methods such as wet ponds, constructed wetlands and filter strips. This study investigates these methods, which in earlier studies have shown to give varying results regarding their treatment efficiency.This thesis has been written on commission of SWECO VIAK and was aimed at studying those parameters that may affect the treatment efficiency of nutrients and heavy metals in storm water treatment facilities (STF:s). Through literature studies the dominating treatment processes in ponds and wetlands were examined.