I denna uppsats beskrivs och implementeras tre alternativa metoder för att skatta kovariansen mellan finansiella tillgångar. De utvärderas sinsemellan och jämförs med stickprovskovariansen. Utvärderingsmodellen innebär simulering av en aktiv portföljförvaltare i en verklighetstrogen miljö. Då kovariansen mellan finansiella tillgångar beräknas med stickprovsskattning blir skattningsfelet stort. Detta fel, eller brus, försämrar portföljförvaltares resultat och alternativa metoder eftersöks.

The purpose of this thesis is to clarify the connection between word-of-mouth and viral marketing, to identify properties of and strategic ways to implement viral marketing and to examine how a company can influence the customers? perception of the brand in social media.This purpose served to answer our research question: How can companies deliberately create viral marketing?To answer this question we based our study on a qualitative method where we conducted eight interviews with different people, all with experience in our research field. We focused on our respondents? own opinions and were more interested in their personal experiences rather than the market in general.In our last chapter our analysis clearly demonstrates that companies can deliberately create viral marketing. This is possible if companies create material that appeal to and that triggers the costumer to share.

This thesis is the final part of bachelors program of Nuclear Engineering at UppsalaUniversity (program code KKI1). The work has been carried out in cooperation withForsmark Kraftgrupp AB. The topic studied deals with possible improvements ofefficiency at the planning department at block 2 in Forsmark i.e. FMP2.FMP2 plans and coordinates over 3,000 operations which is carried out during theannual overhaul of block 2 in Forsmark. Inspections, fuel replacement and repairs areincluded in the annual overhaul.

The purpose with this essay was to examine how the European Union is working totransfer norms to states they signed an agreement with and provide support for inframe of the Barcelona process and the Tacis programme. The theory which weused was Ian Manners (PhD in Political Science) theory of "the EU as a uniquenormative power". The aim was to examine whether the EU - which Manners mean- has had a normative power to influence states to change. We used a qualitativeapproach through the use of a multiple case study and qualitative text and contentanalysis. The States which formed the basis of our study were within the BarcelonaProcess; Morocco and Tunisia as well as Azerbaijan and Armenia funded by theTacis programme.

Purpose: The purpose of this study has been to identify different actors and processes in music recording. We find this interesting since there have been a lot of changes in the music industry over the last years. Our ambition has been to point out different actors and their roles during the advent of recorded music, and identify different features and processes in the creation of music today and in the future. To fulfill our purpose we have had the following research question: What characterize, in a future perspective, the gathered process during the creation of recorded music from idea to delivery and experience?Method: We have used a qualitative approach for this study and we have conducted seven interviews with persons from different areas of the Music Industry and radio.

Syftet med denna studie var att undersöka lärares upplevelser kring makt i skolan. Studiens ambitioner handlade inte endast om hur lärare upplever sin egen makt, utan hur de upplever makt som fenomen i skolan. I bakgrunden ges en teoretisk referensram innehållande historik kring skolan och makt och vad läroplanen idag säger om makt. Även läraren och elever som maktutövare bearbetas, och olika strategier som dessa kan använda som går att finna i tidigare forskning beskrivs. I den teoretiska referensramen bearbetas även grupper och ledare.Studien är en kvalitativ studie och metoden som använts är intervjuer.

Mitt examensarbete innefattar en fönsterutredning för radhusområdet Skeppsvägen i Bålsta. Fastighetsägare är Håbohus AB och examensarbetet har skrivits för Skanska Sverige AB. Arbetet har skrivits på plats i Bålsta där Skanska Direkt AB har eget kontor och erhåller idag totalentreprenaden för renovering av Skeppsvägen. Arbetets syfte är att klart och tydligt redovisa eventuell effekt och energibesparing vid byte av befintliga fönster och altandörrar.Undersökning av fönster och altandörrar har gjorts okulärt, med värmekamera och med fuktkvotsmätare. Vid den okulära besiktningen noterades färgsläpp på fönster.

The purpose of this essay is to understand meeting between hidden refugees and health professionals through interviews with refugee in hiding and health professionals. The implantation of the essay has been made by social science research methods which I have used as a qualitative survey. The material that I have used in this paper is to interview with hidden refugee and health care workers. I have used the different sources such as literature, internet and different laws which relates to the topic of this easy. I am using the power of theories to analyze the work.

Renewable energy and the charging of electrical vehicles will increase in the future. Therefore the risk of outages is also increasing, partly because renewable energy is intermittent and the production amount can change fast. Charging electrical vehicles is often demanding high effect in short time, which could make faults occur. It takes more advanced technology to short the outage time. Today Övik Energi has high reliability in the power grid, but in order to maintain the reliability, it is time to prevent problems that can occur in the future. This thesis has presented a suggestion for the placement of fault detectors Protrol IPS2, in which a total of four detectors is proposed.

Background: Pupils? responsibilities are presented in the curriculum Lgr11 as a given thing. There has been some research in the field of pupil responsibility, but research covering school grades 1-3 could not be found. The study investigates theories of responsibility, pupil responsibility, power and pupil influence.Purpose: The purpose of this study is to find out the teachers? views on pupil responsibility.

With increased deployment ofintermittent renewable energy, such aswind and solar power, energy storagebecomes necessary to help reduceproduction peaks. Thermoelectric EnergyStorage is a method still in researchphase, which stores electricity in hotwater at a temperature of 120 ° C. Thisthesis aims to examine whether theThermoelectric Energy Storage would bepossible to integrate into existingpower generation such as a combined heatand power plant, and how the technologypotentially could function in theelectricity market. ThermoelectricEnergy Storage consists of a chargingprocess and a discharging process, bothoperating by the working fluid CO2. Toincrease the efficiency of theThermoelectric Energy Storage, wasteheat from the district heating networkis integrated.A model of the Thermoelectric EnergyStorage has been developed and it wascalculated by thermodynamic propertiesof the working fluid, CO2, in thevarious process steps.

The aim of this essay is, with reference to a close study on the negotiation delegations of the Tenant Association, to examine the principals of democracy in relation to distribution of power and participation, efficiency and professionalism. This is done with the intention to understand the Tenant Association's view on its own commission as negotiator, according to democracy. The investigation is carried out on the Tenant Association in the Swedish cities of Stockholm, Malmö and Gothenborg.The data acquisition was obtained by using a questionnaire and through interviews with representatives from the Tenant Association negotiation delegation.A central conclusion from this investigation is that the representatives of the Tenant Association generally are satisfied with the democracy model used in the organisation, despite awareness of the fact that there are some failures with representation amongst younger people, women and immigrants. Also, they suggest that the model with representative democracy is by all means the most useful because of its arrangement and efficiency in decision making processes.The policies of the Tenant Association, considering distribution of power and participation between elected representatives and employees, are legitimated by the negotiation delegates. However, there is obvious discrepancy in the look upon their respective tasks between the delegates and the chief negotiators.One can recognise the development of democracy that is called New Public Management in this survey.

The purpose of this paper is to explore to what extent some Swedish bishops (1972-2014), mainly archbishops, were influenced by postmodernity as described by Lyotard in his report La Condition postmoderne (1979).This report had a tremendous impact on the western cultural and philosophical debate in general during the very end of the twentieth century. I am trying to find out if this impact could also be observed in the religious sphere and particularly in the Church of Sweden. My theory used, is mainly based on the ideas presented in La Condition postmoderne and my method is a hermeneutical reading of eight pastoral letters. These letters were written during the time that the Church of Sweden transformed from being an officially recognized national church to a free church among other free churches and in this respect ended to be a part of the official governmental power. The terms postmodernism or post-modernity were scarcely used at all in the pastoral letters but on the other hand the bishops seemed to share many of the ideas that Lyotard presented, such as the view on the metahistory/metanarrative and the connection of knowledge to power, the necessity of dialogue and openness and the importance and the role of creating and maintaining language games..

This thesis investigates the underlying factors behind sexual risk-taking and non-risk-taking behavior with regard to Sexual Reproductive Health (SRH) among adolescents in Lusaka, Zambia. The Qualitative Approach was used for data collection and analysis and using the theory of Social Construction, the author explains how different contexts and aspects in the Zambian Society, that is Traditional, Socio-economic, Political, etc., influence the sexuality or sexual behavior of young people in Zambia. Hermeneutics was used to interpret the meanings in the texts/transcripts acquired through data collection and from the author?s knowledge and understanding of the Zambian historical and cultural contexts within which the participants of the research were constructed. Max Weber?s Ideal Type concept was also used to explain that each young individual?s sexual behavior is uniquely constructed by societal aspects.

Voltage sag indices are a way of quantifying the performance of the power supply, as far as voltage sags are concerned. Indices can be defined for individual events, for individual sites, and for a whole system. A standard method for single-event methods is part of IEC standard 61000-4-30.This thesis emphasizes the importance of voltage sag indices and different methods for calculating three-phase voltage sag characteristics. Three-phase events measured in a medium network voltage over period of one month were analyzed, results examined and statistically evaluated. An algorithm for calculating voltage sag characteristics and indices was created in Matlab.