The goal of this master thesis project was to develop computer models of some plausiblepretreatment techniques and to assess the potential benefits/costs of using pretreatment andanaerobic digestion for waste management of organic waste from a system perspective. Forthis purpose a computer program called ORWARE has been used. ORWARE (organic wasteresearch) is a program for making life cycle assessments of waste management. As the mainpart of the project work the ORWARE system has been provided with three new models ofpretreatment techniques. The additions consist of: One model of pretreatment with ultrasound,one model of thermal hydrolysis and one model of a screw press.

The main purpose of this thesis has been to identify and discuss problems connected with the preservation of newspapers in Sweden. Another purpose was to see if the preservation of newspapers has been influenced by the fact that preservation studies in general concerns printed monographs and digital materials. This qualitative study is partly based upon interviews with four librarians experienced in working with newspapers and preservation. The thesis deals with cultural heritage in general and on a more specific level with newspapers where the following questions are dealt with: Why preserve? Who preserves? How to preserve? and What is preserved? Strategies used for preserving newspapers such as paper, microfilming and digitization are described as well as legal deposit, the Swedish microfilming programme and TIDEN, a digitization project of newspapers.

This thesis investigates if a system for small scale electricity production located in anurban environment can be profitable. The work has been divided up into two parts,one extensive literature study and one case study. The purpose of the literature studywas to investigate the area, resulting in a choice of which technology to be studied indepth in a case study.In the case study a system containing small scale wind turbines and photovoltaicsmounted on Gränby Centrums roof was examined. From data containing wind power,wind direction and total irradiation, possible production from a system weresimulated. Three products of each technology were examined in the simulations.From the simulated production an economic analysis was carried out, this toinvestigate if a system is profitable.

In this thesis I have decided to take a closer look into my own ?backyard?. A river that runs through my hometown, Akureyri, has been a thorn in some people?s side. Glerá river has taken lives but it has also given the town possibilities to develop.

An analysis of a specific application of anaerobic wastewater treatment at a pulp and board mill, Stora Enso Skoghall, was carried out. A literature study was done and effluent wastewater from CTMP pulp production was analyzed. The analysis consisted of a broad constituent analysis and an anaerobic treatment trial. Results from these test where used to calculate the treatment effectiveness and resulting energy potential at the mill.The literature study and constituent analysis showed that toxicity of the water to be treated, due to wood extractives and sulphur content, was of concern. Detoxification chemicals targeting these constituents where used in the anaerobic treatment trial.

Syftet med uppsatsen är att undersöka hur elever klarar att lösa problem som inte kan lösas rutinmässigt och där de inte har tillgång till hjälpmedel. Dessutom vill jag undersöka hur elevens betyg och antal matematikkurser eleven har läst påverkar resultatet. För att få svar på detta lät jag eleverna i två klasser ifrån det naturvetenskapliga programmet, en ifrån årskurs ett och en ifrån årskurs tre, svara på ett frågeformulär bestående av uppgifter som inte går att lösa rutinmässigt.Resultatet visar på att eleverna i årskurs tre klarade testet poängmässigt klart bättre än vad eleverna i årskurs ett gjorde och i båda klasserna visade elever med höga betyg ett bättre resultat än elever med lägre betyg. Det mest överraskande var att båda klasserna trots höga matematikbetyg visade på vissa brister i taluppfattning..

The ÅF Group is a leader in technical consulting, with expertise founded on more than a century of experience. They offer highly qualified services and solutions for industrial processes, infrastructure projects and the development of products and IT systems. They are also one of the leading names in certified third-party testing and inspection work.Today the ÅF Group has approximately 4,000 employees. Their base is in Europe, but their business and clients are found all over the world.A part of ÅF-Engineerings business is programming different automation systems to clients. Another part is support in both telephone and personal visits.Because the number of clients is high and the flora of different automation systems is big the consequence is that the employees must have access to many licenses with programming tools.

The aim of this study was to explore refugees experiences of an introduction program in a small Swedish municipality. The study was based on semi-structured interviews with six refugees and was conducted to explore how the introduction program contributed or has not contributed to feelings of being integrated. Our informants have got different backgrounds but have all been forced to flee their home country to Sweden. The interview data was interpreted through earlier research, theories about social exclusion and concepts which were relevant for our study. Our study showed that the informants felt kindly received in the small municipality.

Title: Time to renovate ? The effect of communication on the relationship between company and customer in a change situationCourse/subject:Busniess administration, Leadership, 15hpAuthors:Fredrik Elghag, Ossian OlssonTutors:Ingemar WictorKeywords:The Million Programme, Communication, Relationship Marketing, Tentant, Landlord.Problem formulation:How does communication affect the relationship between company and customer in a change situation?Purpose:Examining how different parts of a communication process affects customers trust, commitment and loyalty to their company.Theoretical framework:The starting point for the study?s theoretical perspectives have been Morgan and Hunt?s (1994) previous studies on relationship marketing and Laswell?s (1948) communication model.Methodology:The paper is performed with a qualitative research approach and a deductive approach to answer the research question. Personal interviews were conducted with four employees in real estate companies and two tenants in each company stock.Conclusion:We have found that communication affects the relationship between company and customer. Tentants have experinced credibility of businesses is important for them to have a confidence and loyalty in the relationship. .

This study examines how formal mathematics can be taught in the Swedishsecondary school with its new curriculum for mathematics. The study examineswhat a teaching material in formal mathematics corresponding to the initialcontent of the course Mathematics 1c could look like, and whether formalmathematics can be taught to high school students.The survey was conducted with second year students from the science programme.The majority of these students studied the course Mathematics D.The students described themselves as not being motivated towards mathematics.The results show that the content of the curriculum can be presented withformal mathematics. This both in terms of requirements for content and studentsbeing able to comprehend this content. The curriculum also requires thatthis type of mathematics is introduced in the course Mathematics 1c.The results also show that students are open towards and want more formalmathematics in their ordinary education. They initially felt it was strangebecause they had never encountered this type of mathematics before, but somestudents found the formal mathematics to be easier than the mathematicsordinarily presented in class.The study finds no reason to postpone the meeting with the formal mathematicsto university level.

EU vill genom att använda energin effektivare sänka sina energikostnader och minska sitt beroende av externa leverantörer av olja och gas vilket leder till att miljön skyddas. Av den anledningen krävs att energieffektiviteten ökas från produktion till den slutgiltiga konsumtionen inom EU. Jämtkraft är miljöcertifierat enligt ISO 14001 och arbetar därför årligen mot uppsatta miljömål. Detta examensarbete har studerat ett av dessa mål, möjligheten att minska överföringsförluster i ett av Jämtkrafts mellanspänningsnät. Området som examensarbetet baseras på är fördelningsstation Nälden FS23.

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.

The purpose of this study is to find out how teachers in preschool interact with children.By unstructured observations of teachers in preschool I intend to find out how they interact with children. Is it possible to see that the operation is built on guided interaction speciality?Positive interaction between adults and children is of importance to a good childhood and a child?s learning. I have asked myself how teachers interact with children in preschool. There are different ways of interaction.

It becomes more important to consider different behaviour traits in the selection for dairy cows to be suitable in the production systems of today. The purpose of this investigation was to study the genetic background to behavioural traits and the heritabilities for temperament, rank order, aggressiveness, feeding behaviour and for learning behaviour. Moreover, the genetic correlations to other traits were studied. To be included in a breeding programme a trait needs to have enough genetic variation, a moderate to high heritability or to be correlated to another measurable trait. Behaviour is a quantitative trait affected by many genes and the environment.

In this thesis, the conditions of using the maintenance method live work at the Swedish TSO, Svenska Kraftnät has been analyzed. The study is limited to only include live work on 220 and 400 kV. The live work method is a type of maintenance that can be done, on lines or stations, even though they are still energized. The purpose of this thesis has been to map the present live work situation at these levels in Sweden. The study is based mostly on interviews with people who have specific field competence with in live work but also with personnel at Svenska Kraftnät.