There is always an endeavor to govern the initial products in the plant cultivation with precision in order to keep down the expenditure and in order to decrease environmental impact. Initial phosphorus fertilizer can then be one possibility in order to keep down the fertilizer cost and to decrease environmental impact. This exam study includes a literature study about location of fertilizer and which effects this give and two field experiments. The aim with initial phosphorus fertilizer to autumn wheat is to accelerate the root growth and to give the crop a big root system before the growth stagnates before the winter. Easy to access phosphorus favours the root growth.

The aim of this master thesis is to examine research perspectives and a selection ofmanagers? views on the concept of work motivation. With an exploratory approach,based on a literature review and interviews these views are examined and compared inrelation to a theoretical framework. This theoretical framework consists of three keyconcepts, the individual, the context and the regulation of work motivation. Theliterature review reveals two research perspectives, a classic economic perspectivebased on Principal?Agent Theory and a more up to date social psychologicalperspective based on Self-Determination Theory.

The decomposition of organic carbon in drained peat soils is a major source of carbon di-oxide in Sweden. A big part of these drained peat soils are used in agriculture and it is a big challenge to slow down their decomposition. It has earlier been thought that less tilling and higher water table levels would decrease the activity of soil microbes and thereby the decomposition, but recent experiments has showed that this has little or no effect. In this bachelor thesis a field experiment was made on drained peat soil with ley, outside Björklinge, Uppsala municipality, Sweden. The experiment was carried out in May 2011. The objective was to develop a method to examine how the net exchange of carbon diox-ide from plant covered peat soil is affected by temperature and photosynthetically active radiation (PAR).

The purpose of this bachelor?s thesis is to examine video games, gamers and gaming from an information science perspective. The purpose of the study is partly to study video games as a type of information system and partly to study gamers information use, information seeking and also the experience of gaming. A selection of five games have been analysed using a topology for video game analysis created by Espen Aarseth. A quantitative investigation has also been made, in the form of a web survey distributed through four Swedish online forums, the result of which was analysed using Carol Collier Kuhlthaus model of the information seeking process.

Flow measurement is one of the greatest challenges in order to calculate efficiency in hydropower. Most hydropower plants in Sweden use differential pressure methods for flow measurement. These methods are dependent on constant conditions in the waterways. A change in these conditions, like turbine improvements, prevents differential pressure methods to verify efficiency improvements. Since efficiency improvements can?t be verified by one measurement system, another method, which isn?t affected by changing conditions, can be used.

The purpose of this study was to examine how a selection of social welfare officers based on the principle of the best interest of the child construct a minimum level of the material standard in a home. Another purpose was to examine whether different units with varying socioeconomic prerequisites in the municipality of Stockholm construct this level differently.The method used in this study was Sociology of Law and two focus groups were used for the gathering of the data. A social constructive theory, a class perspective using concepts of Bourdieu and a perspective of law were used to analyse the material of data.The results showed that the courses of action varied from enactment and the policies of the municipality of Stockholm, unspecified theories of the development of children, the conception of what is normal and what children needs, the context in which they work, the development of the society and what they estimate that children needs when attending school. The results also showed a difference between the two units concerning the minimum level of the material standard in a home.

The purpose of my essay is to study the current debate on public library as a meeting place in the Swedish daily press. I have examined how the meeting function is used and how it is perceived and what it might mean to the public library. Through a selection process, I chose 18 relevant newspaper articles from the year 2006 to 2012. By implementing a content analysis, three themes were distinguished; ?the meeting place as a place to reside on?, ?the meeting place as an inclusion? and ?the meeting place as a culture and activity house? I have used Andersson, Scot-Hansen and Rabers theoretical models of the library's roles for my analysis.

In this paper the authors are focusing on people that work in psychiatric acute care. How do they identify the individual that is in most need of acute care? How do they judge in this kind of cases?    The foundation in this study is in the qualitative method. The material to this study has been collected by doing qualitative interviews with six people in different professions and positions in psychiatric acute care.   The material that we collected from these six qualitative interviews has been analysed with help from Sherif?s and Hovland?s (1961) Social judgement theory.

Emotional intelligence (EQ) has been claimed to be the most critical factor in determining a person's success in life, both personal and professional. EQ highly affects academic and job performance, leadership, stress, and well-being but is still not widely accounted for in recruitment processes. During the last 20 years a large number of researchers have shown interest in the concept of emotional intelligence, but few have studied its practical implications and how EQ-tests are used as a selection tool in recruitment processes. To create an understanding of the motivation for using the test, as well as its role in recruitment decisions, qualitative interviews have been conducted with recruiters at companies in Stockholm, Sweden. All interviewed companies use the self-assessment test EQ:i 2.0.

The study is based on a human science perspective in which we are interested in the school as a workplace for adults and work with personnel issues. The aim is to contribute with new knowledge about what conditions an employee considers important to carry out their work, and employees' experiences of working in large personnel groups.We have made a case study in a Swedish local primary school for students in lower ages, with between 60-70 employees. We conducted nine semi- structured interviews with a hand-picked selection of employees from different occupational groups in the school. The study is empirical data -driven qualitative with abductive approach. To analyze the collected datamaterial, we have used the empirical data -driven thematic analysis.From the results of the study some aspects appear clearly; employees need to be seen by his/her boss, importance of employee autonomy and employee experience of stress.

The aim of this study was to highlighting social workers perceptions of women with disabilities and their vulnerability to domestic violence - and thereby problematize previous research on gender-based violence on the basis of category of functional ability. We designed this study by using a qualitative approach based on six semi-structed interviews with professionals from different professions. All of them have contact with women with disabilities in some way. The selection was based on gaining an understanding of the social worker?s perceptions regarding abused women with disabilities based on their different professional experiences.

The City of Stockholm has decided to invest in renewable energy and especially in photovoltaics. The objective of this thesis is to investigate the photovoltaic potential on roof areas that the city possesses and to further investigate some buildings of the Property Management Department. The thesis also compares some existing photovoltaic plants with the solar irradiance map which shows available roof area on each building in Stockholm. The report ends with a literature study about the climate impact and greenhouse gas emissions of photovoltaic.The total available roof area suitable for photovoltaic plants is estimated to 700 000 m2, with a potential electricity production of 110 GWh per year. This corresponds to 17 % of the City of Stockholm?s yearly electricity consumption.

The purpose of this work is to study a circulation project in Enköping municipality, where the society?s rest products are used to make beneficial products. In Enköping the rest products from waste treatment plants and private sewers are used to fertilize and irrigate Salix plantations that later are harvested and burned at the local combined heating and power plant, ENA Energy AB, to produce electricity and heat. Possibilities to apply this kind of project ona municipality in Russia are also explored.Guryevsk municipality in Kaliningrad region was chosen since there is a need to improve energy systems and reduce emissions to water and air. This municipality strives to become environmentally friendly.

Pharmaceuticals that are found in marine ecosystems are a threatening environmental concern, which is known to harm both animal and plant life. One of the reasons for this problem is that the waste water treatment techniques are not optimized to clear waste water from its pharmaceuticals contain. In this master thesis four Swedish treatment wetlands were studied, and their ability to reduce numerous pharmaceuticals in waste water. The four treatment wetlands that were studied were those in Oxelösund, Trosa, Nynäshamn and Eskilstuna. Two ecotoxicological tests and chemical analysis were used.

Vattenfall district Heating power plant in Uppsala produces district cooling with absorption heat pumps which leads to a large amount of waste heat that has to be cooled with evaporative cooling towers. The Environmental Court has ordered Vattenfall to survey the possibilities to recover the heat, which is the focus of this thesis.The study begins with an overview of the system, and conditions and limitations for waste heat recovery is examined. In the next step alternatives to recycle the heat is evaluated, either by direct recovering or by upgrading.First, the technical possibility of each alternative is discussed, and then the operation time and the amount of recovered heat is calculated. Those alternatives which are possible are brought further to an economic analysis.The cost of investment for each alternative constitutes the basis for a present value analysis. The results are put together in a table where the total amount of recovered heat is compared with the present value for the different alternatives.