The aim of this thesis was to examine if it is possible to keep nitrogen in the form of nitrate(NO3-) in ponds from one season to another by keeping a high concentration of oxygen in thepond water. This hypothesis was tested by doing a lab experiment where two systems werecompared according to nitrate concentration. One system had high concentration of oxygen inthe water and one had low concentration of oxygen. Before the main experiment wasconducted I did a pilot study to test the system setup and included parameters. The result fromthis study and the main study did not show the same result.

Abstract: Private equity used to be synonymous with tremendous yields and rates of return. However, the private equity market trembled in 2008, due to the financial meltdown caused by the worldwide credit crisis. Considering the current low number of exits within the private equity industry, the purpose of this thesis is to examine if there has been any change in how private equity firms control their portfolio companies since the inception of the crisis. One private equity company and two portfolio companies have been studied. The case study is prepared from interviews with senior directors in the portfolio company and investment managers in the private equity firm.

The purpose of this study was to illustrate how professionals, who work with psychosocialproblems among children, look at the impact of social factors on behavior that causes ADHDdiagnosis and at the relationship between social factors and the increased diagnosis that hasoccurred in recent years. To answer our purpose, we chose a qualitative approach byinterviewing six professionals who had different professional affiliations. We analyzed theresults using systems theory and attachment theory. The results showed that the professionalssaw various social factors that influenced the behaviors that cause ADHD diagnosis, particularlytroublesome growing environment and the school environment that requires greater cognitiveability and social skills of children today. They also saw that social factors could have an impacton the increase of diagnoses, particularly that the diagnosis can result in that the understandingchanges and that it is considered easier to get extra support at school with a diagnosis..

 This paper evaluates the effect of exchange rate risk on the sum of bilateral trade. To distinguish the effect between different types of countries, two groups are defined: advanced and developing economies. Economic theory on exchange rate risk and trade proposes ambiguous effects of increased volatility. However, the ex ante hypothesis is that developing economies are more sensitive to volatility. Contrarily to the hypothesis, the empirical results suggest that advanced economies would benefit up to twice as much from a removal of exchange rate risk.

Sweden has an environmental goal to achieve until the year 2020. To achieve this goal the construction business has to take an initiative to use the modern techniques that are available to lower the energy consumption I buildings. There?s also a debate going on today regarding the energy demands set by the Swedish government through Boverket, some communities throughout Sweden thinks that the demands are to low and have therefore set up own demands regarding energy in buildings.The possibility to construct energy-saving buildings is today very great, with energy-efficient heating-systems and dense climate envelope. The interest to raise energy-efficient buildings have also increased as a consequence that the population have become more aware about their impact on the environment.

The fungus Gremmeniella abietina causes damage to conifers that can lead to tree death. In 1999 and 2001 the pathogen caused severe attacks in Sweden, where about 500 000 ha of pine forest were affected. Trees of all ages were attacked, but mainly forests between 30-60 years that were ready for their first commercial thinning. After recommendations from the forest agency, sanitary fellings were made to trees that had more needle loss than 85%, a total of about 50 000 ha. Economic losses have been estimated to more than one billion SEK.

Background: Do our elder starve? A good nutrition state gives a good health and comfort. The research displays that is it exists shortages in energy and nutrition needs for the older. Aim: The aim with this study was to elucidate the mealorder and the mealsituation for the elder and how the nurse handles this. Method: This litterateur review was based on teri research studies.

During the 1990?s a large number of building projects were revealed where lack of moistsafety precautions during the construction process had led to extensive moisture damage. Alsoresent implemented studies have shown that the problems with moisture damages have ratherincreased than decreased during the past few years. Moist is considered to be one of the mainfactors to cause unhealth due to deficiencies in the indoor-environment and does also causeunnecessary expenses and a reduction of the confidence in the construction industry.In this Bachelor of Science thesis three projects have been reviewed to examine how moistsafetyhas been observed during the construction process. Main focus has been to identify thebuilding components that are the most exposed to moist, and to examine how they have beentaken into account during the period of design and construction.

The purpose of this article is to examine issues concerning quality assurance in the Swedish family counselling. To obtain the purpose following factors have been analysed: what kind of requirements/criteria are put on the companies/practitioners, what the respondents think about the lack of common standards and criteria and their opinions concerning ?Lagen om valfrihetssystemet?. Monitoring of criteria, privatisation and increased competition are other factors that have been analyzed. The material was obtained from the family counsellors own association and was analyzed in the light of previous research and theories regarding the quality of family counselling however we also considered theories about quality within social work in general.

The aim of this study is to examine how the adult students in the Adult Education Initiative called Kunskapslyftet, experience their use of the Main Public Library in Linköping and how the librarians experience the change in their working situation after Adult Education Initiative has started in July 1997. Methods used in the survey are interviews with librarians and students in the Adult Education Initiative. I have also distributed questionnaires to some of the adult students and studied literature that describe students use of libraries. The result shows that the students generally are satisfied with the service they get from the librarians at the Main Public Library. It also shows that what the students mostly asked for, are help to search information about a subject and to find literature in the library.

This master´s thesis is a comparative study of the importance of eight factors suggested in the literature to be related to the perceived utility of the service Book a librarian (Swe. Boka en bibliotekarie). Disciplinary differences were also analysed. 73 encounters between students and librarians in 11 Swedish academic libraries were studied using a survey. Six factors were significantly related (at the .05 level) to the utility of the service.

This essay aims to explore the development of the common foreign and security policy within the European Union as well as the recent addition of the post of High representative in the field of the common foreign and security policy. This essay will attempt to achieve this trough exploring the questions; how have the aim of the European foreign policy developed, how the forms of cooperation has within this field developed and finally what impact will the recent addition of a high representative for the common foreign and security have. My aim is to answer these questions with the help of neo-functionalism.The results that came out of this essay point to the direction that the neo- functionalist premise about spill over effects and the notion about increased supranational influence turn out to have some validity in them. The study has shown that during the time the cooperation within the field of foreign and security policy have developed it is possible to see that supranational institutions will gain influence when the scope of integration within a policy area widens and deepens..

An increasing number of health problems in the population and an uneven distribution of health between different groups in the society, have been identified as a problems and has therefore been put on the political agenda in Sweden. Thus, the purpose of this thesis is to estimate and discuss the significance an individual?s behaviour, in a number of areas, has on his/her level of health.The empirical material for this thesis is taken from a nationwide inquiry conducted in 2004,which was called ?Hälsa på lika villkor?? (Health on equal terms?) The material used consists of the answers and records from individuals living in the administrative district of Kronoberg. 9972 individuals were included in the sample and the answering frequency was 63,2%. To map and analyse the material, which was done mainly through crosstabs, chi-square tests and logistic regressions, the statistics software SPSS 11.5 was used.The parameter used to measure the health level is the individual?s own perception of his or her general health.

The United States use of Unmanned Combat Aerial Vehicles (UCAV) or drones for targeted killings of terrorists has been on the rise in recent years and the method has become the core element of president Obamas strategy in the war against terror. This study examines the deterrent effect of targeted killings on terrorism using UCAV/drones as a method of counterterrorism. Building on the literature on counterterrorism, UCAV, targeted killings, deterrence theory and statistics on terrorism the study provides a case study of the CIA drone operations in Pakistan between the years 2004-2010. The goal has been to analyze drone operations and the extent of terrorism from the beginning of the drone campaign until 2010. This as a means of identifying possible trends in terrorism activity due to the occurrence of drone strikes.

The study takes place in the capital of Sweden, Stockholm. It focuses on how the past reforms since the 90s have changed the teachers? occupation as a profession.The study is partially based on analysis of prior research and documents related to the thesis. The cornerstone of it is based on four immerse interviews carried out in three different schools. Two of which were private schools and the third is a municipal school.