This thesis rewievs present day research on the settlement of Östra Aros in central Sweden. The thesis deals with the period from late Iron age to about 1270 AD, when the Swedish archdiocese moved to the already existing early-medieval settlement of Östra Aros, thus becoming the medieval town of Uppsala. The basis of the thesis is the study of a variety of source materials, such as artefact studies, runestones, topography and the prehistoric and early medieval hinterland. The thesis centers on archaeological excavation data and dating of settlement structures, particularly focusing on the settlements establishment. Through a critical review of primarily the written record and the archaeological data, the settlements characteristics and functions are discussed, emphasising when and if the settlement could be described as a town, central- or trading place..

The work covered in this report includes a literature study of the diesel dual fuel technology(hereinafter referred to as DDF). The literature study covers earlier work that has been doneregarding the use of compressed natural gas (CNG) and diesel in a DDF system. Moreover a onecylinder research diesel engine was fitted with a CNG fuel system for experimental testing. Theinstallation of the engine and the test cell is described. Results from the tests are presentedcovering emissions, heat release and pressure traces from the DDF-concept.During the literature study it was found that most research was related to heavy duty dieselengines.

The relation between the cave and the circumpolar light conditions has long been a part of the interpretation of the meaning of the Norwegian cave art. This paper explores the relationship by trading the concept of a sensory dichotomy between light and darkness for that of a perceptual relationship between the paintings, the environment and the light..

Common species of freshwater mussels may, like the freshwater pearl mussel (Margaritifera margaritifera) have a drastic decline in number and there is several reasons, like sedimentation, a decline of host fishes, introduction of alien species, nutrition leakages from agriculture and pollutants of medic drugs and poison. Ann Gustavsson made in the year of 2007 a study over rejuventation of freshwater great mussels in nine watersystems and considered that the rejuventation within the populations were all along the line poor. This study orients from her work and points to determine if there is a connection between the poor juventation and pollution of nitrogen and phosphorous from industries and private sanitations. The study was performed with the software program ArcGIS9.2 to take out drainage areas for the concerned habitats and contact was made with the concerned authoritys. When it comes to supervision of private sanitations is it the countys and for industries is it the county administrative board.

The Swedish household?s savings has increased the last couple of years, according to Statistiska centralbyrån. But the amount of households that trades on the stock market has decreased from the year 2012 to 2013. The diminished interest in stock trading carries a risk by leading to a smaller yield for the private savers, and also effect the business development and the economic growth. High brokerage fees will aggravate the ability to attract venture capital.

I denna uppsats presenterar vi en ny infallsvinkel på hur datatolkning i moderna organisationer bör hanteras, såväl praktiskt som teoretiskt. Studien genomfördes med ett kvalitativt och abduktivt tillvägagångssätt byggt på grounded theory med deltagande observationer och intervjuer med aktörer inom organisationen. Vårt teoretiska ramverk är byggt utifrån Carliles (2002) teorier om semantiska barriärer och påbyggda genom Iveroths (2011) tidigare forskning utifrån common meaning. Således är vårt teoretiska ramverk lämpligt för att tolka hur barriärer som hindrar en synkron datatolkning mellan olika aktörer i organisationer belysts i tidigare litteratur, hur dessa barriärer kan överbryggas samt olika synsätt på kunskapen som ett regelrätt mått.Avsaknad av kunskapskonsensus i organisationer grundar sig i semantiska barriärer för datatolkningen som måste överbryggas med sociala interaktioner. Organisationer går mot kunskapskonsensus genom att utifrån datakällan arbeta med ? i) teknologiskt medierade trading zones men även ii) socialt dimensionerade överbryggningsaktiviteter med målet att skapa kunskapskonsensus mellan och inom aktörsgemenskapen..

Green public procurement (GPP) can be used as an instrument to reduce carbon dioxide emissions, and consideration of environmental aspects within public procurement is becoming more common in Sweden and internationally. Two product groups that have been pointed out as especially important are transports and electricity, where the opportunities for public purchasers to reduce emissions are relatively large. This paper studies GPP which aims at reducing emissions, primarily of carbon dioxide, through environmental requirements within these two product groups. A theoretical analysis of cost-effectiveness, transaction costs and effects on technological development is performed, followed by a closer study of how these aspects appear in practice within GPP. The results indicate that a cost-effective allocation of reductions between the two product groups is most likely to be attained if the main part of emission reduction is achieved through environmental requirements on electricity. The cost for emission reduction within transports is relatively high, especially for heavy transports. For transportation services, more generally focused requirements on emission reductions could probably give greater environmental gains, but the existence of transaction costs steer the environmental requirements towards more technology specific types.

The EU has decided that it should be possible for consumers to get information about the origin of the electricity they buy. Therefore, there is a need to examine different systems for electricity disclosure. In this thesis two ways of disclosure have been studied:? Certificate system. A certificate system involves two parallel markets, one for trading electrical energy and one for trading certificates of origin.? Separated Markets.

This report contains a study of replacing nuclear power with biofuel. The nuclear plant, OKG north of Oskarshamn in Sweden has been chosen and an extensive literature study about the nuclear plant has been implemented. The main aspect of this report is the availability of biofuels and whether it would be economically sustainable. Sweden?s most common biofuels are examined with regard to scope of use and potential.

An accounting issue that has received attention is the issue of identification of intangible assets in acquisitions. This is because the company's result can be different depending on how much the company chooses to identify intangible assets separated from goodwill. As the practice for identification of intangible assets lacks clarity, companies are able to account for this in different ways. In this study, the manner in which identification of intangible assets are managed by companies listed on Swedish multilateral trading facilities and the manner in which companies distribute the purchase sum on net tangible assets, intangible assets and goodwill in comparison with listed companies is examined. The study emanates from a systems approach and is descriptive.

Denna studie underso?ker hur inta?ktsdiversifiering i europeiska bankverksamheter pa?verkar aktiemarknadens va?rdering och variationen i aktiepriserna. Europeiska bankverksamheter har sedan mitten pa? 1980-talet expanderat mot tja?nster som genererar provisionsinta?kter eftersom den historiska uppfattningen har varit att inta?ktsdiversifiering kan minska variationen i vinsterna och potentiellt o?ka marknadsva?rderingen.Effekten av inta?ktsdiversifiering studeras utifra?n OLS-regressioner pa? paneldata som besta?r av 103 bankverksamheter fra?n 24 la?nder i Europa fo?r perioden 2005 till 2012. Aktiemarknadens va?rdering och variationen i aktiepriserna bera?knas utifra?n data o?ver aktiepriser och fra?n bankverksamheternas finansiella rapporter.

This thesis concerns how the power quality in the grid is affected by the connection of wind power plants. As things are at present, Fortum Distribution AB has a number of wind turbines and wind parks connected to the own grid. As the pressure on building and connecting additional wind power is increasing, so is also the interest of how the already existing wind power generation affects the power quality in the nearby distribution grids. The study is performed by direction of Fortum Distribution AB and is limited to the 10 kV/40 kV-grid in Bohuslän, Sweden. The methods for calculation of power quality are compared to the results of a number of measurements.

A one-cylinder research engine has been used for studies with a Diesel Dual Fuel concept (DDF). DDF is a concept that utilizes a pilot diesel injection to ignite a homogenous natural gas/air mixture. Emissions and engine efficiency have been analyzed in an emission cycle called European Stationary Cycle (ESC) and the knock/pre-ignition problems with this type of engine have been investigated.At low and mid torque levels, an early diesel injection around 60 crank angles degrees (CAD) before top dead center (TDC) was used. At these loads raw NOxemissions was below EURO 6 level (0.2 g/kWh). NOxwas at EURO 5 level over the complete ESC without after treatment and with SCR at high loads it should be possible to reach EURO 6.One issue with DDF is the high HC emission levels.

BAKGRUND: År 2007 infördes MiFID-direktivet bland EU:s medlemsländer vars främsta mål var att öka konkurrensen på den europeiska aktiemarknaden. I samma veva avskaffandes börsmonopolet vilket lett till att det idag finns fler handelsplatser som erbjuder aktiehandel, så kallade multilateral trading facilities (MTF). Genom denna etablering har aktiemarknaderna genomgått en marknadsstrukturförändring, vilket kan ha lett till förändring av transaktionskostnader och möjliggjort uppkomst av eventuella oväntade effekter. Det här är något som idag fem år efter implementeringen av MiFID-direktivet diskuteras frekvent.SYFTE: Huvudsyftet med uppsatsen är att kartlägga och utifrån institutionell teori analysera hur införandet av multilateral trading facilities förändrat och påverkat transaktionskostnader på svenska marknadsplatser som bedriver handel med aktier. Ett delsyfte är också att beskriva institutionen multilateral trading facility och dess framväxt.GENOMFÖRANDE: Studien har genomförts med ett kvalitativt tillvägagångssätt genom intervjuer med berörda parter på aktiemarknaden i Sverige.

In Sweden the real estate sector accounts for 33 % of energy consumption and just below 10 % of the emission of carbon dioxide. As a consequence of the external pressure from climate change it?s in everybody?s interest to reduce the energy consumption and thus reduce the emission of carbon dioxide. An additional incentive to reduce the energy consumption is the substantial increase of the energy price since the deregulation of the electricity market in 1996.In this study the techniques that exist to build multi-storey residential buildings with high energy performance will be investigated. Further the study intends to investigate the optimal energy performance from a real estate economic perspective.In order to investigate the optimal energy performance a model has been created with the parameters investment cost, rental revenues, operation and maintenance cost, discount rate and investment horizon.The result shows a relationship between a high investment cost and a high energy performance for newly constructed multi-storey residential buildings.