Preservation of cells and tissues by freezing at temperatures below 70°C has led to new possibilities for the storage of germ cells for fertility preservation. During the freezing process problems might occur, the greatest being ice crystallization which can cause membrane destruction and thus cell death. To minimize this risk, solutions that reduce the freezing point can be added to reduce crystallization and increase survival rates. These solutions are called cryoprotectants. The best method for freezing is still not known.The aim of this study was to analyze the effect of various parameters on the survival rate of human semen frozen with liquid nitrogen.

The Swedish government has set up 16 environmental goals for Sweden to achieve. One ofthem is ?Living forests?, which is the foundation for the ?National strategy for the formalprotection of forests?. The ?National strategy? puts the private forest owner at the centre ofattention in order to achieve the environmental goal ?Living forests?.

The Swedish and Icelandic women's movements, the Support Stockings and the Women's Alliance both had the goal to change their nation's women politics. The goal was to increase the low representation of women in their parliaments and to highlight women issues on the political agenda. The essay shows that the most important reason behind the will to form a party, was a new issue being disregarded by existing parties, although there is a considerable interest concerning the issue amongst society. While a party was formed on Iceland the Swedish equivalence did not occur. Even though only one party was formed, both movements achieved the same results.

The purpose of this thesis work is to formulate a model with methods that describe key success factors to get understanding and awareness in organizational change projects. We have used a project within the township of Gothenburg as a case and connected to this single project the purpose is to identify key success factors to get understanding and awareness among employees within the township of Gothenburg. We hope that our result will be useful in other large organizational change projects. Theoretic basis for our study have been models and methods, while our purpose have been to construct a model with suitable methods for anchoring. Theories about coaching and process management are examples of methods to get understanding and awareness among employees in change projects.

Deliberative politics offers a new and exiting way of overcoming the problems that the western democracy of today is facing. A lot of research in the most recent years have had the goal to replace the representative democracy with a decision-making frame built on decentralization and deliberation. The goal for this essay is to create a framework for local decision-making, based on deliberativ norms, that could work as a complement to the representative democracy instead of replacing it.During the recent years the so-called "brukarråd"; councils for the most common users of one special public service, has been a new way for the local government to get in direct contact with those who are most affected by changes and developments in the specific area of the public administration. In this essay I argue for that these councils should be designed so that they could house deliberative processes.After creating a model for the possible way of designing the "brukarråd" I compare the framework with the system that exists today. In this way there is a possibility to point out if there is a way to deepen the democracy within the already existing system..

This essay is written with the purpose of getting an insight in what knowledge a designer should have to live up to the employers demand. Interviews have been done with three persons, each from different furniture companies. The result is compared to the educational goal..

Bakgrund: Intracerebral hjärnblödning (ICH) står för omkring 20 % av alla cerebrovaskulära sjukdomar och uppkommer oftast snabbt, vanligtvis i samband med aktivitet. Är blödningen stor kan hjärnans mittstrukturer flytta på sig, vilket i värsta fall kan leda till koma eller döden. Datortomografi (CT) och magnetisk resonanstomografi (MR) är idag de vanligaste radiologiska undersökningsmetoderna för att upptäcka en ICH. Syfte: Att jämföra CT och MR vid diagnosticering av ICH, för att ta reda på respektive undersökningsmetods för- och nackdelar och därför kunna avgöra vilken metod som är att föredra vid diagnosticering av ICH. Metod: En litteraturstudie baserad på artiklar funna i databasen PubMed genomfördes, där åtta artiklar hittades vid sökning. Två artiklar hittades vid en manuell sökning. Resultat: MR är bra i ett tidigt stadium vid ICH. Gradient echos (GRE) roll vid MR verkar vara bra vid undersökning av ICH, men är likvärdig med CT, däremot tyder det på att GRE är mer noggrann än CT vad gäller mätning av blödningens volym, då den mätta volymen visar sig bli större med GRE än med CT däremot kan CT vara mindre tillförlitlig vid små ICH. Konklusion: Denna litteraturstudies resultat tyder på att MR är en säkrare diagnostisk metod vid ICH än CT, däremot krävs större studier inom detta område för att kunna dra en definitiv slutsats. .

This paper tests the information signalling hypothesis on a sample of firms making open market stock repurchases. Using an earnings-based valuation model, we find that a majority of repurchasing firms are undervalued relative to their economic value. This result is consistent with previous academic studies, which claim that undervaluation is the prevalent factor explaining the observed abnormal return following the announcement of a repurchase program. We do not, however, find any evidence that the repurchase is consciously made by management to provide the market with new information. .

There has always been global warming on earth and it is because of it that the earth is inhabitable. Without global warming the temperature on earth would be around -18 ° C instead of today's + 15 ° C. Global warming is generated by greenhouse gases like carbon dioxide and methane which trap long wave radiation in the earth's atmosphere. The problem today is that the global concentration of green house gases has significantly increased since the 1750's as a result of human activity. Today's values widely exceed the preindustrial values.

The overall purpose with this thesis has been to study the strategic development of the Swedish Green Party, Miljöpartiet de Gröna. From its first appearance in the Swedish parliament 1988 to its decision to cooperate with the Social Democrats and the Left Party in 1998, the Greens has gone from a radical antiparty to a pragmatic support party. The analysis has concentrated towards identifying the causal factors behind this strategic move made by the Greens, and to determine how this party change has affected the party's strategic goals. In order to do so, a qualitative case study has been conducted where an integrated theoretical approach has been used. By studying official statements and internal debates the thesis concludes that the strategic change made by the Greens was due to the evolvement of a new dominant coalition of within the party.

Grus i maskineriet ? en fallstudie om förbättringspotentialVäxeln AB, a company that provide sales, service and repair of industry gears, has contacted the authors of the essay and asked us to investigate in which areas of the company that has improvement potential. Persistent improvement is a recurring and up-to-date issue that many business leaders not put enough resources on. A big problem in many companies is the issue that there is no comprehensive view and therefore some of the workers tend to not follow the routines that are required for the whole system to work.The goal with the essay is to give Växeln AB advice on to which areas in the company that have improvement potential.We have used a qualitative method with mainly semi-structured interviews which has led to an inductive approach. 13 co-workers that work in different areas of Växeln AB have taken part in the interviews.

In June 2006 the Swedish government decided that the use of energy in buildings should be reduced by 20 percent until 2020, compared to the level of energy used in 1995. To contribute to this goal, the real estate company ?Eskilstuna Kommunfastigheter AB?, set up own goals for their buildings. In 2009, the goal for schools was to have a maximum energy use of 118 kWh/m2year for heating and hot water.The school ?Hållsta skola?, just south of Eskilstuna, exceeds the limit since it used 270 kWh in 2008.

This report is about helping Q-Med AB in Uppsala to start its implementation of uncertainty of measurements analyses in their manufacturing department. Prior to this, the company relied solely on personal experience or did not take this uncertainty into consideration at all during different kind of measurements, which means that some of the processes that the company previously believed were within specified acceptance limits, will actually fail when considering these sources of uncertainties.Q-Med AB needed some sort of instruction to help the company, in a systematic way, to investigate different types of disorders that are affecting all kinds of measurements. This instruction includes a short summary about measurements and uncertainty of measurements in general and a detailed procedure about how these uncertainties are going to be handled in their daily work.The goal was to be able to use this instruction to systematically locate, eliminate (when possible) and analyze all kinds of disorders when measuring. Q-Med is using a lot of different types of instruments when measuring different types of quantities, including temperature, mass, pressure and density. This instruction will hereafter be used for every instrument, regardless of quantity and type of instrument.The instruction is tested through 4 different kinds of measurements, for mass, temperature and humidity.

Abstract Aim: Since there is a lack of research based educational interventions concerning the relationship between coaches and young athletes, the aim of this study was to implement and examine the effects of sport psychology intervention for coaches in a track and field club. The research questions were: What are the effects of an educational intervention for coaches, with focus on a motivational climate, on: A) the coaches´ coaching approach B) their athletes´ goal orientation and C) their athletes´ perceived competitive anxiety?Method: The coach education stretched over two months and consisted of four two-hour lessons with focus on motivational climate, goal orientation and sport anxiety. Six coaches (three females, three males), aged 38-52 (M=44.33 years, SD=4.84) and their 59 athletes (27 males and 32 females) aged 12-14 (M=13.10 years, SD=0.82), participated in the study. A control group of 35 athletes (10 males and 25 females), of the same age (M=13.46 years, SD=0.70) and with similar demographic data, was also recruited.

Syftet med studien var att fa? fo?rdjupad kunskap om sambandet mellan olika ledarskapsstilar och kommunikation. Syftet var dessutom att fa? fo?rdjupad kunskap om sambandet mellan ledarnas kommunikation och medarbetarnas arbetstillfredssta?llelse. 114 deltagare besvarade ett fra?geformula?r inneha?llande 51 pa?sta?enden om ledarskap, kommunikation och arbetstillfredssta?llelse.