We derive the equation linking the Weyl tensor with its Lanczos potential, called the Weyl-Lanczos equation, in 1+3 covariant formalism for perfect fluid Bianchi type I spacetime and find an explicit expression for a Lanczos potential of the Weyl tensor in these spacetimes. To achieve this, we first need to derive the covariant decomposition of the Lanczos potential in this formalism. We also study an example by Novello and Velloso and derive their Lanczos potential in shear-free, irrotational perfect fluid spacetimes from a particular ansatz in 1+3 covariant formalism. The existence of the Lanczos potential is in some ways analogous to the vector potential in electromagnetic theory. Therefore, we also derive the electromagnetic potential equation in 1+3 covariant formalism for a general spacetime.

The purpose of this essay is to investigate modern influence in the painting Strömkarlen, by Ernst Josephson. Strömkarlen was painted 1884 in Norway. First the essay performed an investigation of earlier researchers statements to establish a ?common truth? that puts the painting in a realistic/naturalistic-romantic context. With the help of Yve-Alain Bois? model, where he sees art from the painters point of wiew, it was possible to use two articles, written by Ernst Josephson in the fall of 1884, where he debates the conditions for art and artists in Sweden.

The purpose of this study is to find out how some Swedish preschool teacher discussing how children's Swedish colloquial interaction can be enhanced in the free play. In this case where children are aged three to five.My research questions in the study are:-          What type of free play do preschool teachers talk about in relation to children's Swedish colloquial development?-          What do preschool teachers say about child's colloquial interaction?-           How do preschool teachers reason regarding in what environment children?s colloquial interaction occurs?In my study I have used an interview with elements of a visual method called The Diamond. The approach is that the participants in the interview will be enhanced to discussing about a wise certain number of images. These images are then to be ranked accordingly with a specific theme and terms.If a child has difficult to speak, you can take help of  the interest the child has, the child can tell you and the other children what he or she know about the interest.

Med denna uppsats vill vi ge läsaren en uppfattning om vad Free Software och OpenSource (FOSS) handlar om och mer specifikt analyseras huruvida FOSS kan fungera ien kapitalistisk värld eller inte. Den grundläggande idén med Free Software ochOpen Source, eller fri programvara och öppen källkod, är att ge varje användare avett datorprogram rätten att fritt köra, undersöka, ändra och vidaredistribueraprogrammet.Författarna ställer i uppsatsen frågan ?Hur kan pengar tjänas på FOSS?. Uppsatsensyftar till att försöka bena ut denna frågeställning. Frågeställningen ger upphov till tvåperspektiv; dels i meningen ?på vilka sätt kan man tjäna pengar på FOSS? och dels ibetydelsen ?hur kommer det sig att det går att tjäna pengar på FOSS då det är gratis?.Uppsatsen knyter an till litteratur kring FOSS samt ekonomisk teori och är främstteoretisk till sin natur.I uppsatsen visas att gamla beprövade affärsmodeller inte kan användas rakt av förföretag som använder eller utvecklar produkter baserade på Open Source.

The purpose of this study was to look into how learners of Swedish as a second language and some teachers of the subject think and reason about the choice between Swedish or Swedish as a Second Language and literature in Swedish at upper secondary schools. Similar studies have earlier been carried out at upper secondary schools in areas dominated by immigrants while the present study has been accomplished in a small municipality with comparatively few immigrants. The study is based upon qualitative interviews which have been analysed through the socio-cultural theory regarding those artifacts, communication and that mediating second learners of Swedish and their teachers and schools are using in their choices between Swedish or Swedish as a Second Language as well as selection of literature in literature teaching.  The study also shows how learners of Swedish as a second language perceive the choice between the two options of Swedish courses at advanced upper secondary school and how their teachers look upon their choice and the information given. Furthermore we will also get to know the learners of Swedish as a second language and their teachers? view on teaching Swedish literature at advanced upper secondary B-level in Swedish.

Today we live in a more or less globalized society where borders do not pose the same obstacle as before. This is why it is interesting to examine whether different countries have similar views on how to communicate with a specific audiencePurpose: The purpose of this thesis is to use the data gathered to inform businesses with information. The information can then be used to assist companies when it comes to advertising, the design of messages and the choice of media channels when communicating with people born during the 80?s. Furthermore, the investigation intends to find out if there really is a global market for people born during the 80?s.Method: The authors believe that a purely quantitative or qualitative approach is not appropriate.

The purpose of this thesis is to examine how the elderly people experience the food on a sheltered accommodation. We will examine nutrition in the food and if the elderly people have an influence on food they gets everyday. The aim of this study was to examine older persons? everyday experiences of food within the context of homes for the elderly. More specifically, nutrition and the personal experiences of influence concerning choice of food were examined.

A new type of chartered holiday, fitness holiday, has evolved during the last years and has also been mentioned in different media channels. Despite this, fitness holiday is a relatively new and unexplored phenomenon, which caught our interest to further explore this. The desire to travel on a holiday of this type has also increased. Therefore, a study about this particular phenomenon with focus on the traveler?s motives behind the choice to go has been done.It?s a qualitative study and most part of the data has been collected during a field study to Playitas Resort, Canary Islands.

Does a person´s self esteem contribute in the process of creating false memories? Previous studies show that mood is related to false memories as well as to self esteem. This led to the focus of this study, to examine the relationship between false memory and self esteem. The question is examined by comparing the amount of false memories produced in the Deese-Roediger-McDermott (DRM) procedure with people´s scores on Rosenberg´s self-esteem scale. 59 people participated in a test with three different elements, a self esteem test and a memory test with both recollection and free recall.

Title: GMO Food ProductsThe issue of marketing and selling them in Europe - A Business and Legal Perspective.Author: Shane KingSupervisors: Anneli Carlsson and Ewa RabinowiczProblemThe European Unions regulations in regard to GMO?s and the approval process for both release into the environment, and onto the market, has been under fire by the USA along with Canada and Argentina. The WTO has ruled on this issue in favour of USA et al.The problem that was identified was in regard to consumer opinion in the EU. How could the EU meet its numerous international trade obligations while at the same time meetingthe needs of the citizens of the Union? Added to that was the issue of whether or not the?EU? perspective was indeed an EU perspective or rather the perspective of a fewMember States.

How affected are the sugar production in Mozambique and Tanzania by EU sugar regime? What does the EU sugar reform constitute in these countries?Using theories regarding free trade and anti-free trade, I am able to answer these questions. The aim of this paper is to study how the various sugar agreements with EU affect the sugar production in Mozambique and Tanzania. Therefore I am using a method called a most similar system design in this comparative case study. The conclusion is that the EU sugar regime is the main reason to how the sugar productions in developing countries are.

In several countries that have been early in the development of wind farms, there is today a second hand market for the used wind turbines. The European Union (EU) has established a waste hierarchy in order to minimize throwaway mentality. The second hand market is a part of this as the steps are to minimize, reuse, recycle, extract energy and landfill.In order to promote the development of renewable energy, there are energy certificates for the producers that provide it, wind power being one type of renewable energy. After 15 years the energy certificates for a specific wind turbine are no longer paid, and after that there are several different scenarios for the wind turbine. The scenarios investigated in this bachelor?s thesis are export of the wind turbine to countries that are not as far along as Sweden in their development towards renewable energy, selling in Sweden to individuals, and recycling of the wind turbine, as it mostly consists of metals and therefore is recyclable.

The present project was initiated with the aim to create pattern modules for use in public environments. My intention was to let the properties, of the specific materials used, have a marked influence on the realisation of the final form. I also wanted to find a material, which is suitable from the perspective of sustainabilityand possibilities to create modules from it. The work was initiated with a study of some candidate materials and many sketches before I finally made my choice. My decision was clear after a visit to the company Glasfabriken inKalmar.

The EU has had a special agreement with their former colonies in Africa, the Caribbean and the Pacific Islands, the ACP-countries, for almost 30 years. This has granted the ACPs with preferences on the Europen market, which have been excluded from other countries. The agreement is now beeing re-negotiated to make it more in terms with the rule of the WTO?s most favoured nation-principle. The new agreement will differ from the present one as it will be a mutual free trade agreement where the ACP countries will open their markets to the EU as much as the EU opens up it?s market to them.

Sedan år 2000 har det varit tillåtet för svenska företag att köpa tillbaka sina egna aktier. Sedandess har ungefär 80 företag initierat återköpsprogram. Tidigare empiriska studier, bådeutländska och svenska, har visat på en positiv aktiekursutveckling för de återköpandeföretagen. Motiven bakom återköpen anses vara signalering om undervärdering, reducering av?free cashflow? och därigenom av agentkostnader samt options- och flexibilitetsrelaterademotiv.Vi har studerat aktiekursutvecklingen justerad för branschindex för återköpande företag upptill fem år efter återköpets annonsering.