This thesis uses ten years of data to examine the underlying drivers behind changes in the taxi price, specifically we look at the relationship between the taxi price and changes in the underlying costs. We use a two-step error correction framework to investigate how changes in costs affect prices in the long run as well as in the short run. We also study if the price adjustment process is asymmetric. Furthermore, we examine if price discrimination exists on the taxi market in Stockholm. We find that in the long run the pass-through effect is almost complete, whereas in the short run prices are considerably less sensitive to cost changes.

This report is made as a literature review, focusing on the work done to increase understanding of efficiency in the categories of substations and secondary heating systems, with respect to the deviation from the theoretically possible cooling off in the distribution network as well as the economic benefit that appear. The main purpose of a considerable part of the literature used in this report addresses the issue of identifying individual causes of reduced cooling in district heating systems. These literature resources have been compiled and summarized as part of the report.The technology of district heating is associated with benefits such as better use of the energy in a fuel. This is the case of cogeneration plants where serial generation of electricity and thermal energy increases efficiency compared with the parallel generation where heat is generated locally and electricity is generated centrally. Serial generation thus allows for lower primary energy demand.

The intention of this thesis in political science is to understand how the European Union fights and prevents discrimination against the Roma minorities in Sweden and Romania, and how the implementation works in reality. The study consists of defining what it means to be objectively discriminated, what ethnicity really means and how the implementation process consist of a comparison and statement has been made by the national governments and comparing how two socioeconomically different member states handle EU directives and implement them in Sweden and Romania. The main findings of this study was that EU policies lack the capital and explicitness that is needed for great results to be accomplished and that the governments in both countries have different issues with implementing the protection of the human rights and Roma culture, and that EU needs to be more practical and develop in a faster pace. .

This thesis has been conducted at Saab Bofors Dynamics AB. The purpose was to investigate if a non-linear missile model could be stabilized when the optimal control signal is computed considering constraints on the control input. This is particularly interesting because the missile is controlled with rudders that have physical bounds. This strategy is called Model Predictive Control. Simulations are conducted to compare this strategy with others; firstly simulations with step responses and secondly simulations when the missile is supposed to hit a moving target.

I det här arbetet har algoritmen Simulated Annealing undersökts med avseende på dess möjlig att användas för att minimera av kostnaden för ett singelfrekvensnät för digital tv. Undersökningen är gjord genom att simulera ett antal testfall för att utreda hur olika ingående optimeringsparametrar inverkar på slutresultatet. Alla försök har genomförts i ett egenkonstruerat simuleringsverktyg, gjort i Matlab. En jämförelse av resultaten för två olika sätt att hantera täckningskraven har också gjorts, Simulated Annealing med- respektive utan straff metod. Alla genomförda försök har genererat en betydande kostnadssänkning jämfört med startkonfigurationen.

The purpose of this thesis is to examinethe possibilities for adding a floor to anexisting building using the two materialswood and sheet metal profiles as the loadbearing structure. An apartment buildingfrom the 60s has been used as referencehouse. Two different suggestions for thedesign are presented in the rapport. Oneof them has been analyzed with wood andsheet metal as the load bearing structure.Using the old constructional calculationsand blueprints of the existing buildings,the load bearing capacity has beencalculated. In the calculation programFEM-Design the building has been testedwith the loads that an extra floor wouldgive.

The primary intention of this paper was to visually compare film trailers without considering semantic information, through use of a self-developed Matlab program, resembling that of human perception. Circa 150 people participated in an online survey where they were shown two film trailers and asked to rate their visual similarities. The result from the program was weighted against the survey results in such a way that the weights corresponded to a 75% accuracy between the program?s and the participant?s (for participants with prior experience in the field of photography and/or film) comparisons.How accurate can we compare still images from film trailers, and find similar trailers for the human viewer, by analyzing saturation, color tone, contrast and lightness with a self-developed Matlab program..

I dagens globaliserade samhälle blir det allt vanligare att barn växer upp med fler än ettspråk i sin omgivning. Det kräver en ökad kunskap om flerspråkighet och vad somsärskiljer flerspråkiga barn från enspråkiga barn. Då de mätinstrument som idaganvänds i Sverige för att utröna om ett barn har en språkstörning endast är utformade förenspråkiga barn riskerar flerspråkiga barn att över- eller underdiagnostiseras. För attråda bot på den problematik som uppkommit i samband med diagnostisering avflerspråkiga barn och språkstörning har ett europeiskt forskningsnätverk bildats, kallatCOST Action IS0804. Syftet med nätverket är att kartlägga SLI (specific languageimpairment) hos flerspråkiga barn genom att koordinera forskning inom lingvistisk ochkognitiv förmåga över ett stort antal länder.

Nine out of ten larger companies have an intranet today which is supposed to improve the communication withinthe company and save money. A great part of these intranets were established in the beginning of the 1990?swithout giving any thought to the users and their needs. How does the communication inside the corporationslook like when the intranets that are supposed to be the source for every information request, aren?t usable? Whatother sources do the users use and how much?The aim of this master thesis is to examine information source selection at a specific company.

In this degree project I write about how the farmers who grows carrots in Sweden get influenced by different rules, investments and demands. The Swedish agriculture are heading towards a harder time, and then you have to find new things to do. Now its hardly no profit to grow grain so you have find other crops. This paper is not a comparison between the contract cultivation to Findus and the cultivation where the farmer maked his products by a own company on the farm. If you have a small processing company on the farm, you have to increase the standard with different certificate. The farmer binds a lot of capital in machines, both field and in the process.

The purpose with this report is to examine how the implemented energy efficiency measures on Bokelundskolan in Växjö have had impact on the energy use. The measures which have been implemented are, new ventilation system, new heating system, optimized adjustment of the heating system, new windows with U-value 1.2 and lower window height, insulation under windows and in the crawl space. The school's energy use before and after rebuilding has been calculated with the calculation program, Vip-Energy 1.5.5.Calculations of energy use for the school with windows on U-value, 0.9 and 0.7 have also been done. The replacement of windows has been studied from a cost perspective. The conclusion is that the exchange of heat and ventilation system was the biggest contributor to reduced energy use on Bokelundskolan.

The purpose of this essay is to examine which factors that influence the design of internal control in municipal context and how well it works. We choose seven municipals, where we interviewed the administrative managers, the chairmen of the committees and two persons of the staff in each activity unit. The interviews were performed by telephone, due to the keeping of the essay?s timeframe.The theory in our essay comprises eight hypotheses. These hypotheses were operationalised into different variables aiming to make statistical tests possible.

Uppsatsen belyser vilka faktorer som påverkar om en utbyggnad av vattenkraft i Kalixälven är samhällsekonomiskt lönsamt med beaktande av olika näringar samt de eventuella miljöeffekter som uppstår. Teorin utgörs av centrala begrepp ifrån en cost-benefit kalkyl. Under arbetet med uppsatsen har ett tydligt mönster utkristalliserat vilket utmynnat i följande. De slutsatser som dragits av studien är fördelar som ökad elförsörjning, intäkter samt ökad sysselsättning. Förlorade forssträckor orsakar ekonomiska förluster på grund av minskad fisketurism och naturupplevelsen av en fritt strömmande fors, vilket också drabbar turister och fritidshusägare i omgivningen.

This master thesis has been performed at the department of Machine Design at KTH, The Royal Institute of Technology. The thesis has been a part of a global development project in collaboration with Luleå University of Technology, Lund Faculty of Engineering and Stanford University. Corporate liaison and sponsor has been Immerse Global Inc. The project was also performed on sponsorship from the Product Innovation Engineering Program, PIEp. The thesis is a representation of some of the contributions made by the authors.The lack of clean drinking water is one of the key issues facing the world today.

AbstractThe purpose of this theses is to compare three different political groups, The IRA, The Baader-Meinhof group and the Al Qaida, who have all used terroristic methods to achieve their separate goals.By finding out about their history, goals, structures and methods I have made a comparison to see what joins them, what separates them, what originated the birth of their movements and how they can or could proceed with their violent actions to the point that they had actual impact on international politics.It has all been done through a litteraturebased study.My focuse has been on Al Qaida since it's is the only one of the three who is still active today and who, through its cellstructure, represents a new form of global terrorism that may have great influence on the structural patterns of other political groups and criminal organizations in the future.Key words:Al QaidaBaader-MeinhofIRATerrorismCellstructure.