Agriculture has to be performed in a sustainable way in order to sustain high yields and to support a globally growing population. Functional soil properties are fundamental for high yields and in order to achieve good soil conditions sustainable management is a key. Loss of soil organic material and increased soil acidity are problems associated with degradation of soils and hence less sustainable agriculture. In this thesis, the effect of different agricultural systems on soil organic matter, pH and yield was examined. The systems examined are a cereal system with straw removal or returning and a ley system, all with different nitrogen levels.

Since 1996 the Swedish households have ten folded their volume of loans for own homes that is attached to a floating interest rate. Also in 1996 the Swedish electric market was deregulated. These two facts have increased the volatility in the household expenses for these two commodities. This thesis studies the risk for homeowners attached to the exposure against the electric and the credit market. The risk model used is Cost-at-Risk which is usually used by public authorities for analysing the risk involved with national debt.

Purpose/Aim: The purpose of this essay is to see how the media, through the newspaper, "Vi föräldrar?, produces family and parental roles, and to investigate how the image changed over time.Material/Method: The material consists of a number of selected texts from the years 1968, 1988 and 2008. The method used is a discourse analysis based on the three level model by Norman Fairclough. The three levels are the text, the discourse practise and the sociocultural practise. In this study two of the levels, text and sociocultural practise, are used in analysing the texts.Main results: Family and parenting in the texts from 1968 can be linked to the structural functionalist theory in which the core family is central and women and men are assigned to specific roles.

The aim of this study is to examine a number of Swedish working public librarians and compare them with some popular standard images of librarians. In this project we have been working in line with these three questions: How do the librarians describe themselves and how can the descriptions be interpreted? What images are the most common and repetitive, according to earlier research? What differences and similarities are there between the images of the librarians and the working librarians? To answer the questions we have performed seven qualitative interviews with working librarians and collected relevant literature that presents various portrayals of librarians. To interpret the interviews we have used Pierre Bourdieus theories of social space, social fields, habitus and the cultural, academic, social and the economic capitals, as well as the connection between individual taste, class and social power. The conclusions of the collected material of earlier research and the interpreted material from the interviews have been compared and discussed.

The thesis was done in collaboration with EAB situated in Smålandsstenar. In the initial discussion faze on doing a thesis with them there was a need to analyze and ensure the strength of an existing product, cantilever racks. This included performing FEM calculations on a model and comparing the results with physical tests.EAB has two models of cantilever racks, a light duty and a heavy duty. Within the heavy duty model series there are five product variants that differ in both size and load capacity. We will be working with the product variant with a load capacity of 1000 kg/arm which is the variant that is in the middle of the series.When we started work on the thesis we did a literature study and couldn?t find any well defined methodology that integrates both product development and computer aided design analysis.

Previous research on Twitter use among nonprofit organizations has been centered on the US, thisessay Nonprofits on Twitter: a content analysis of Swedish nonprofits working for gender equalityseeks to expand that research to include nonprofit organizations operating in Sweden. By studying tenSwedish nonprofits all working to achieve gender equality this study can begin filling a gap in theexisting research. Focusing on both what kind of messages the organizations publish, and what kind ofmessages engage the organizations? followers. This is achieved by quantitative content analysis:categorizing messages into the categories Information, Community and Action, and measuring whichof these categories got the most shares, comments and likes.

Background: Today businesses are largely structured in projects and temporary organizations. In many companies, the ability to pursue projects is decisive for the business efficiency and competitiveness. The risk literature do not discuss identification and handling ofproject risk in building- and construction companies to a large extent, which has led us to investigate how project risk can be treated and handled in Swedish building- and construction companies. Purpose: The purpose of this thesis is to cover and describe business risk in Swedish building- and construction projects with focus on different risks and risk tools, and also to modify a model for evaluating the business risk maturity. Realization: This thesis has both traces of a case study and a cross-section study and examines eight different companies that are active in the building- and construction business.

This study examines the background and nature of the credit default index swaption (CDIS) and presentsrelevant methods for modelling credit risk. A CDIS is a credit derivative contract that gives the buyerright to enter into a credit default index swap (CDS index) contract at a given point in time. ACDS index, in turn, is a multi-name credit default swap (CDS). Within the eld of research, thisthesis identi es the CDIS pricing models presented by Jackson (2005), Rutkowski & Armstrong (2009)and Morini & Brigo (2011) as the most recognized and developed. These models are evaluated byreconstruction in a numerical software environment.

The aim of the study is to examine how different factors,such as views on how knowledge is produced and howlearning takes place, effect the way an academic librarymanages space. This is done by looking into how a specificlibrary, namely Library & Learning Resources (LLR) at theUniversity of Borås, by re-planning the building?s structure,design and functions, can support the students? differentstudying habits. The analysis is performed by using a theoreticalperspective built by a model first created by thearchitect Daniel Koch. The model is designed to look uponhow space produces meaning and knowledge.

Intelligent IT-based solutions, often called Smart Grids, are considered to be the future balancers of renewable energy sources. One area within the Smart Grid concept is called demand response, which is focused on making customers more consumption flexible by making them more active in their consumption. In this thesis the aim is to analyze a business model by investigating the income potential for a demand response solution as well as its market potential. This has been done through literature studies, interviews and development of a computational model.The use of 5000 households with flexible consumption can provide a cost reduction of 17.2% or 2.4 million SEK for a balance responsible party during an average year. If the solution is used to make strategic bids on the regulation markets the study indicates that the largest potential for revenues lies within this strategy.

Gender is a universal factor that is unavoidable in classroom interaction between pupils and teachers. The principle aim of this essay is to illustrate whether, during the interaction between pupil and teachers still occurs behavior that expresses a gender order. We also want to establish if the ones who attract attention from the teachers is the individual, or if teachers still on a subconscious or conscious level, think of the pupils gender and ascribes him or her some characteristics or qualities. Especially we want to bring out the pupils thoughts and sights of there is a difference on how teachers treat boys and girls. Another purpose we wanted to achieve was to illustrate how teachers work with the concept of equivalence between the sexes, according to Lpo94.Our essay is built on our studies around what teachers think on how they treat the pupils, on the basis of gender perspective.

The purpose of this thesis work was to develop an automatic fault detection system for surveillance of bearing temperature in hydropower turbines. The parameters used except the bearing temperature were cooling water temperature and cooling water flow. A simple static model based on data sampled every minute was developed to estimate the bearing temperature. Then a detector for detection of change in bearing temperature based on the CUSUM-algorithm was designed. Since the amount of data was very small the developed model was too uncertain to be used in a working system.The designed fault detection system showed to work well for the available data.

This thesis aims to explore how medical social workers/counselors perform their workwith people during crisis and how they accumulate and practice scientific crisisknowledge. This study is an empirical research paper based on qualitative interviewsconducted with eight medical social workers. The data was analysed with Kvalesmodel for categorization, which constitutes the basis of the research. The results ofthe research was then analysed with the use of Cullbergs crisis theory and a model ofevidence based practice which is described by Topor and Denhov. The results showthat the medical social workers practice the evidence based practice model, describedby Topor and Denhov, in combination with Cullbergs crisis theory.

Composting is a process in which organic matter is mineralized by microorganisms. In January 2005 landfilling of organic waste was prohibited in Sweden. With this prohibition composting has become an important alternative to handle the produced organic wastes. One problem with continuous small-scale composting is the production of organic acids that will inhibit a further composting process. The aim of these theses was to study what effects temperature and dry matter content had on the production of organics acids, and what effect the organic acids had on the mineralisation of the substrate as well as the stability during storage of the product.

This thesis was performed as assignment from Fazer Food Services. The aim was to survey which food additives that were present in the products in the quotation list of one of their suppliers to the Education and Nursing segment. The aim also was to perform a theoretical analysis of these food additives and to make recommendations which food additives are acceptable and which should be excluded from the products in the future. The recommendations are not published in this report, for more information Fazer Food Services can be contacted. Food additives which have already been approved are regarded as safe according to the safety evaluation methods available at the time of approval.