Today most ice rinks in Sweden use secondary refrigeration systems with a solution of calcium chloride and water as secondary refrigerant. Due to the large amount of energy such a system uses more efficient systems would be desired.An earlier study concluded in the possibilities of using carbon dioxide as secondary refrigerant with copper tubes as the loops in the ice rink. Since then 3 ice rink refrigeration systems has been built with carbon dioxide in copper tubes. Excluding the ones being direct involved in those projects there is still very little knowledge about how these system works. This study has been made primarily with the aim of adding to the knowledge concerning availability and cost and secondary to look at possibilities for improvement.A comparison between systems with carbon dioxide, calcium chloride respective ammonium solved in water has been made by using Decision Matrix.

Inom den svenska förskolan har antalet barn ökat i barngrupperna samtidigt som resurserna har minskat. I det ökade barngrupperna skapas det en större oro bland barnen. Pedagogerna inom den svenska förskolan upplever att det blir mycket spring och konflikter. Detta gör att pedagogerna strävar efter att hitta nya arbetssätt som minskar oron och konflikterna bland barnen. Mitt syfte i denna studie är att undersöka hur en förskola genomförde en förändringsprocess kring sin innemiljö, det vill säga rum, möblering och material.

I dagens samhälle krävs det allt snabbare förändring i organisationer för att hålla jämn takt med omvärlden. Detta har den svenska regeringen uppfattat och därför tagit fram en innovationsstrategi för år 2020, som vi till stor del har utgått från i detta arbete. Med den som grund ville vi ta fram ett verktyg för att introducera innovation för individer och organisationer för att starta en process för ett kontinuerligt lärande och arbete med innovation. För att testa detta verktyg gjordes en studie som bekräftade vår hypotes, och utifrån detta har vi tagit fram en stor, övergripande modell för hur vi ser att innovationsarbete kan fungera i organisationer utifrån vårt verktyg, samt en modell för hur individen och organisationsklimatet tillsammans kan fungera för att bidra till att höja innovationsförmågan i en organisation. Utöver vår hypotes hade vi även två forskningsfrågor som vi svarade på, där den andra är vårt innovationsbidrag..

The purpose of the essay was to investigate the way four different educators, at a pre-school with a bilingual profile, work towards strengthening the children?s bilingualism as well as their identity. The research questions concern which guidelines are being used, the educators perceptions concerning children?s bi- and multilingualism and in what way they believe that their pre-school distinguishes itself from others.Qualitative individual interviews and observations were conducted and the empirical data was analyzed using a theoretical framework, constructed of theories concerning language development, ethnicity and identity.The result presented in the study shows that the pre-school not only follows the national curriculum but also their own guideline. The guideline states that there should be both Spanish- and Swedish speaking personnel and that they are ?responsible? for the education in their own language.

The purpose of this diagnostic master thesis is to examine the motivation of the individuals working in a specific section at Sony Ericsson BGNMVNL. In order to do this, we will distinguish motivational and de-motivational factors that influence the individuals? in their work. Further, we also have the aim of giving recommendations on how to act on these outcomes in order to improve the motivation in BGNMVNL. Our thesis is a diagnostic study in which data is collected by qualitative face-to-face interviews and observations with selected individuals at Sony Ericsson.

Background: As a result of the financial markets ever ongoing product innovation a new derivative was introduced in the USA in 1997. A derivative that derived it's value, not from the price of an underlying asset, but instead from a climate factor. It's been known for a long time that revenue in certain industries are affected by weather conditions. The suppliers of weather derivatives claim that these weather sensitive businesses can user weather derivatives in order to lessen weather risk. Purpose: To do a critical evaluation of how weather derivatives can be used by companies as a risk management tool.

The economic climate that has been going on for the last years has more or less affected everyone. This has created a need to get more knowledge about how our banks work and also how peoples own personal financial situation looks like. When our banks over this last period have compensated their employees with even greater deals of money, reactions has gone to the roof. This discussion has made us interested in the subject, which led to the decision to write an essay about remunerations within banks.The purpose of this essay is to investigate if our banks remunerations to their employees have any effect on their profit numbers. Does the size of the compensations vary with changes in the market? Do larger compensations contribute to a greater result?The study will look at Sweden?s four largest banks, Handelsbanken, SEB, Nordea and Swedbank.

After 9/11 and the following War on Terror, Muslims are often understood as global enemies. However, the idea of an international, Islamic enemy is in some circumstances criticized, not least after the actions of Anders Behring Breivik in Norway in 2011.This study analyses the North American, Emmy Award-winning television series Homeland. It centres on the War on Terror and the following social and political climate, and there are opposing understandings regarding how religion and ethnicity are portrayed in the series. Accordingly, the aim of this study is to analyse how such aspects are constructed in the series. A text analysis is used methodologically and the theoretical perspective contents of Semiotics, Eurocentrism and Orientalism in general, and Islamophobic themes in particular.This study shows that in Homeland, the portrayal of heroes and enemies plus good and evil is complex.

The Swedish Parliament has decided to increase the share of electricity produced by wind power. The same parliament has decided that the Sami have the right to herd reindeer over 50% of the country's land area. In this literature review the potential impact wind power development and associated infrastructure may have on reindeer husbandry conditions are examined. The unique physiology of the reindeer enables it to live out of grazing in the arctic climate in the north of Sweden. For reindeer husbandry to be long-term productive and sustainable, it is important that there is enough land for grazing. The research available on how reindeer are disturbed by human activities such as roads, mines, hikers, etc., clearly indicates that the reindeer avoids areas close to such disturbance.

Background:Due to a more open climate in society for homosexual people several lesbian couples have given birth to children in their relations. Research has shown no differences between children in lesbian families and children in heterosexual families considering mental and social health. International research has also shown that lesbian parents often have bad experiences from meetings with healthcare providers.Theaim of this study was to describe lesbian child families/familyplannings and the lesbian parents experiences and expectations of the healthcare.Themethod for the study was qualitative interview with 9 lesbian parents. The data was analysed by the queer theory heteronormative concept.Theresults of the research was that lesbian families considered themselves as a nuclear family and at the same time distanced themselves from the nuclear family concept. The findings showed that lesbian couples are involved in a very long process when they try to become parents.

Människan har genom sin industriella framfart bidragit till ökade nivåer av växthusgaser i atmosfären och på så sätt rubbat den balans av gaser som naturligt förekommer. En klimatutveckling med trender som tyder på en framtid med varmare klimat är en av konsekvenserna av den process vi i alldagligt tal benämner växthuseffekten.Ett varmare klimat förväntas medföra förändringar av en rad faktorer, där medelvattenståndet i världshaven är en. Med en geografisk lokalisering i direkt anknytning till kusten och en topografisk lokalisering på dryga 2.65 m över havet skulle Karlshamnsverket kunna vara i farozonen för de konsekvenser en höjning av intilliggande hav kan medföra. Karlshamnsverket är ett värmekraftverk som ägs och drivs av Karlshamn Kraft AB. Anläggningen ligger utanför Karlshamn, vid Blekinges kust, och redan idag råder viss problematik vid högvattenstånd.

When it comes to investigating the motives behind activism, the members of political study have a lot to say. I aimed to critiqually rewiev this in my thesis. I asked the question ?What do the actor themselves claim lay behin their decision to become motivated?? To highlight this complex dilemma, I sought to discuss new social movement theory by comparing it to reality. This includes a literate examination on contemporary political science approaches, and a study of two organisations in the south of Sweden, choosen not to despise any excisting theory, but to give it a sense of reality.

Ledarens roll förutom att styra verksamhetens uppsatta mål och visioner är att se till att få medarbetarna med sig, utan dem fungerar inte verksamheten. Ledarens stil påverkar medarbetarnas välmående. Ett auktoritärt ledarskap har visat sig leda till större sjukfrånvaro både på kort- och lång sikt medan en demokratisk ledare oftare har medarbetare som mår bra, utvecklas och presterar bättre. Åtta intervjuer gjordes med ledare inom olika branscher inom näringslivet. Studiens syfte belyser ledarens tankar och agerande kring sin egen hälsa samt deras anställdas hälsa.

Background:Due to a more open climate in society for homosexual people several lesbian couples have given birth to children in their relations. Research has shown no differences between children in lesbian families and children in heterosexual families considering mental and social health. International research has also shown that lesbian parents often have bad experiences from meetings with healthcare providers.Theaim of this study was to describe lesbian child families/familyplannings and the lesbian parents experiences and expectations of the healthcare.Themethod for the study was qualitative interview with 9 lesbian parents. The data was analysed by the queer theory heteronormative concept.Theresults of the research was that lesbian families considered themselves as a nuclear family and at the same time distanced themselves from the nuclear family concept. The findings showed that lesbian couples are involved in a very long process when they try to become parents.

The purpose of this master thesis is to describe the professional and literary life of Karl-Gunnar Wall, city librarian of Katrineholm between 1944 and 1975. Questions at issue are the reasons for Walls literary interests, Walls choice of occupation, crucial personal meetings, the context in which Wall acts, Walls fundamental principles as a librarian and as a critic, and the features comprising Walls life history. The method used is a merely qualitative one called "life history". It is founded on in-depth interviews with the persons involved and emanates from the individuals own story about his life. I have carried out three taped interviews; one with Wall himself, and two with his colleagues.