I denna magisteruppsats undersöks eventuella långsiktiga samband mellan den svenska aktiemarknaden och aktiemarknaderna i Tyskland, Storbritannien, USA och Japan. Detta sker genom en kointegrationsanalys med Engle-Grangers metod. Undersökningen omfattar åren 1992-2010 och resultaten visar inga tecken på att det skulle existera några långsiktiga samband mellan den svenska aktiemarknaden och någon av de utländska aktiemarknaderna. Resultaten ger därmed indikationer om att den svenska aktiemarknaden tillsammans med de utländska aktiemarknaderna i undersökningen är kollektivt effektiva i åtminstone den svaga formen enligt Fama (1970). Då inga långsiktiga samband existerar bör även portföljdiversifiering mellan den svenska aktiemarknaden och de utländska aktiemarknaderna i undersökningen fungera effektivt på lång sikt..

The main environmental problem for aviation is the great amount of exhaust gases, mainly nitrogen oxides, carbon monoxide, carbon dioxide and hydrocarbons - mostly "greenhouse gases" leading to climate changes. I decided to sort out what is being done to decrease these problems and what regulations there are concerning air pollution by the means of searching the internet and using publications from aviation authorities for current figures. I chose to scrutinize authorities on political, authority and company level, resulting in summarizing the work of UN and EU respectively, ICAO (International Civil Aviation Organization), JAA (Joint Aviation Authorities) and LFV (Swedish Civil Aviation Authority), and finally SAS, representing the airline companies. Conclusion that I have drawn are thatthere are regulations for air pollution, written down in ICAO's Annex 16, that are to be followed. Secondly, LFV are environmentally controlling their nineteen airports and since economy is an important reason for not giving priority to environmental issues in aviation emission charge and noise charge are added to the landing fees.

Syftet med denna uppsats är att undersöka om ryssladsspecifik räntevolatilitet smittar av sig på de baltiska staterna. Efter den asiatiska krisen 1997 är contagion ett av det mest debatterade ämnena inom internationell finansiell ekonomi och definieras som kriser som smittar av mellan regioner. Metod: 1998 utförde Sebastian Edwards en studie baserat på en bivariat GARCH-modell där han undersökte om volatilitet i den korta räntan sprids från Mexico till Argentina och Chile. Jag följer Edwards (1998) metoder för att undersöka om Baltikums räntevolatilitet är påverkad av rysslandsspecifik volatilitetsspridning. Resultat: Med bristande tillgång till långa tidsserier för emerging markets kan jag inte påvisa någon volatilitetsspridning.

Given that the oil prices have risen and the environmental regulations has become more stringent, the interest in operating efficiency has increased. The project has investigated the possibility of producing electricity from waste heat generated in the diesel process. One technique to utilize and convert energy into electricity is the ORC (Organic Rankine Cycle). This process is based on the Rankine process (the steam process), the difference from the traditional Rankine process is that instead of water as a working medium, an organic substance is used. The main component used in the process is a evaporator, a turbine, a condenser and a pump.

Mergers and Acuisitions are becoming increasingly common. This can be explained with the fact that the competition is increasing. Therefore many companies are forced to join other markets. This thesis inquires into the process of Mergers and Acqusitions when one company buys another company. The main focus is set on how three different banks handle the process of Mergers and Acqusitions and what results this leads to. These are: Kaupthing Bank, Nordea and Citibank.

Kinetiken för nitrering av en järn-kromlegering med en gasblandning av ammoniak och vätgas har studerats vid temperaturer mellan 500°C och 600°C. För ett gasatomiserat pulver (Fe-7%Cr) har inverkan av syrepotential (H2O/ H2) och olika förbehandlingar (förreduktion och förnitrering) studerats med hjälp av en termogravimetrisk metod. Dessutom har laserablering som förbehandlingsmetod för nitrering av solida ytor studerats med hjälp av GD-OES-analys (Glow Discharge Optical Emission Spectrometry). Resultaten har diskuterats och tolkats med avseende på faktorer som kan påverka ytreaktionens hastighet, kärnbildningsförhållanden samt diffusionsvillkor. Syrepotentialen har visats påverka nitreringshastigheten via komplicerade samband mellan syrepotentialens storlek, kvävehalt i materialet och nitreringstemperatur.

This study sets out to research the effects of perceptions regarding teacher education as well as the teacher profession in general amongst college students studying to become teachers. The aim of the study is to get a better understanding in what perceptions that constitutes the foundation of the aspects that may affect the students of education by interviewing students about how they perceive their education. The study relies on a sociocultural perspective to analyze the data as well as justify the relevance of the study. The method for researching this will consist mainly of interviews and literature studies. Four students of education, where two are Swedish and two are Finnish, will act as the main source of empiric information.

The aim of this thesis is to investigate the procurement of maintenance at SvK. Byunderstanding the process that has led to the current procurement strategy; providesuggestions to how the procurement of maintenance can be improved to ensure thequality of future maintenance of the national grid.A god client can be associated with a number of qualities, ?acquisition competence?.Vinnova describes acquisition competence as the ability to plan, formulate,communicate and monitor. Different businesses and industries have different needsand opportunities and operate in different economic structures which requireadjustments in their acquisition competence. A number of areas have been identified,called areas of focus, where clients can adjust their competences to their markets.The areas of focus are competition, competence/quality, control and communication.By defining the need of acquisition competence for SvK and identifying problems, anumber of suggested strategies have been proposed.

Future emission legislation puts great emphasis on increasing the efficiency of the engine, thereby reducing fuel consumption. The tribological contact between cylinder liner and piston ring is where an great amount of energy is lost due to friction, and by reducing these losses an reduction in fuel consumption can be achieved.The aim of this thesis was to evaluate the tested piston ring coatings against a plasma sprayed cylinder liner and rank these combinations of materials for friction and wear resistance. The coatings that were tested was Cr + Al2O3, (Al,Cr)N, two types of CrN and WC / C.The experimental tests were performed with a so-called pin-plate, where used oil with addition of an acidic mixture of sulfuric and nitric acid to mimic the acidic condensate formed when exhausts recirculate, were added with a continuous flow. The results were then analyzed by weighing, studies by optical microscopy and scanning electron microscopy (SEM) and profile measurements.The results from each material combination were that the plasma coated cylinder liner wears too aggressively in order to yield a ranking of the piston ring coatings based on the parameters of friction and wear resistance. It is therefore proposed that an alternative coating on the cylinder liner should be developed, lacking the large abrasive wear on piston rings and that can withstand the corrosive environment resulting in engines equipped with EGR.

The aim of this literature study was to analyze how milk urea concentration is working as a measure of the nitrogen supply to rumen microbes and indicator of the environmental load. Questions included in this literature study were how to improve the dairy cattle nitrogen efficiency and what correlations there are between milk urea, nitrogen efficiency and crude protein content in the feed. Effects on the reproduction from high ration protein content are also addressed. Dairy cattle are today fed with large proportions of protein which could lead to high expenditure of feed and environmental pollutions. The nitrogen can be lost to the environment by different pathways; leaching, denitrification or by emission to the air.

The aim of this literature study was to analyze how milk urea concentration is working as a measure of the nitrogen supply to rumen microbes and indicator of the environmental load. Questions included in this literature study were how to improve the dairy cattle nitrogen efficiency and what correlations there are between milk urea, nitrogen efficiency and crude protein content in the feed. Effects on the reproduction from high ration protein content are also addressed. Dairy cattle are today fed with large proportions of protein which could lead to high expenditure of feed and environmental pollutions. The nitrogen can be lost to the environment by different pathways; leaching, denitrification or by emission to the air.

Energy Director is a control and measuring system for energy consumption and is part of the product portfolio of E.ON AG for more efficient use of energy, offered to business customers. As of today, the system has only one parameter of control, namely power, and the objective of this essay has been to investigate whether other ones could be added. The emphasis is on the environmental perspective, which is why carbon dioxide has served as an example for this parameter in question.Parallel with the study of Energy Director electricity on the margin, calculations of carbon dioxide equivalents and also the Swedish trade of electricity have all been highlighted. Results indicate that when reductions in energy are made it is endorsed to omit from electricity on the margin rather than some mean distributed electricity, under certain conditions, and in addition the calculations of the reductions should be modified regarding the efficiency of the power stations fuelled by lignite and bituminous coal. Sweden practices trade with the Nordic countries as well as Poland and Germany.

Hedge funds have the past few years become an increasingly popular investment alternative and in the last decade hedge fund assets managed have quadrupled to USD 2000 billion, a growth rate of around 25-30% per year. One explanation for this substantial increase is that hedge funds' minimum limits on capital invested has declined, which have made ??them available to retail investors. The recent turmoil in financial markets has also contributed to investors finding their way to hedge funds, whose goal is to generate stable returns regardless of how the market develops.Using Sharpe?s, Treynor?s and Jensen's performance measures, I have investigated whether hedge funds manage to generate higher risk-adjusted returns than traditional managed funds.

Protecting the environment has with time grown to take a more central role in the society. Agriculture plays an important role in the society since this sector produces our food. More thorough research on how agriculture affects the environment is therefore motivated. This research can be used to improve the agricultural practice from an environmental point of view. This is something that both the farmers and the consumers can profit from. This study aims to form the basis for creating environmental indicators for use of nitrogen and energy on dairy farms. Twenty-three farmers in western Sweden have been interviewed about their farms, both organic and conventional. They produce milk with different intensity, defined as the amount of milk delivered (sold) per hectare of arable land.

As today, companies are facing an increasing competition; markets are expanding while customers are getting more informed and fastidious toward companies and their products. For this reason it is crucial for enterprises to create loyal customers, or at best hyper loyal customers. With today's prerequisite this creation is difficult and it is therefore of highly interest to examine possible and alternative ways for enterprises to attain this type of hyper loyal customer. In this thesis we have examine hyper loyal football supporters with the aim to identify mechanisms that create and characterize this type of loyalty. By means of a survey and a focus group we were able to identify six loyalty mechanisms; the ability to influence, vicarious achievement, self-esteem, group affiliation, family and social relations.