This thesis studies private equity firms' implementation of management control systems in their portfolio companies and whether the systems are affected by cross-national differences. A comparative case study examines five different private equity firms to derive if there are any differences between the private equity firms' management control systems in the United States, Europe and China. The empirical observations are categorized according to the framework developed by Merchant (1985) and further developed by Merchant and Van der Stede (2003). Theory on the effect of multinationality on management control systems, also developed by Merchant and Van der Stede (2003), are used to explain possible findings. The applied theory includes the cultural dimensions developed by Hofstede (1984) and Hofstede and Bond (1988).

Today?s wind power plants are only compensated for their reactive power consumption at no-load. As the wind power plants grow bigger the amount of reactive power they need also increases. This is no longer a problem that can be ignored, especially as the net owners are beginning to charge the reactive power they transport.In this thesis a couple of different methods of compensation and their prices will be discussed and evaluated. Problems, such as self-excitation, that can occur if one fully compensates the wind power plant will also be brought to surface.

This master thesis has been carried out at Scania R&D at the department for Powertrain Control System Development during the winter of 2010/2011. In the thesis the writer examine and evaluate the existing method for collecting information from the tests carried out during the development of the Powertrain Control Systems software. It also contains suggestions for how a new method that enhance the validation elements could look like.The master thesis uses Vicentes theories of the ecological approach and theories of how knowledge sharing of tacit and technical information works within an organization and between the organization and its customers. First a workplace analysis at Scania R&D is carried out to see how Powertrain Control Systems work and how they test their software. Second a control task analysis, where the aims decided on after the interviews, is compared to the existing method.

I denna studie undersöktes om känsligheten för stress varierar mellan olika ångestsyndrom. Respondenterna utgjordes av 36 män och 47 kvinnor, samtliga medlemmar i Svenska ångestsyndromsällskapet, som fick besvara 15 bakgrundsfrågor samt PANAS, SE-formuläret och Locus of Control. Några skillnader i stresskänslighet kunde inte påvisas. Dock uppvisade kvinnor högre grad av extern Locus of Control än män, medan män hade fler sömnproblem än kvinnor. Bortfallet i undersökningen är betydande eftersom del av respondentgruppen föll bort.

The purpose of the study is to investigate the possible effects of an unstable ventilation system and its influence on energy use and thermal comfort. The report also explores how qualified personal working with HVAC view and handles system control.In order to meet the requirements in energy efficiency and a comfortable indoor climate control regulation is a prerequisite. With optimized increased complexity of the climate systems, it becomes more challenging to control the system and the risk of unstable control increases. No previous studies about what affect an unstable system can have on energy use and thermal comfort have been found.The report is based on several tests were the controlling variable has been increased until the system becomes unstable. Two different types of unstable systems have been investigated.

This report describes the construction and development of a control box, which is a tool for testing and verifying a certain model of Rapid?s built in staplers (model A6102). Basically the function of the control box is to interpret any errors that may occur in the stapler and to make it possible to test fire the stapler.The control box should be able to communicate with the stapler using a specialized communication protocol. The different data such as errors, firmware etc. from the stapler is presented in plain language on a display.

The system tungsten-oxygen has potential of being suitable for decorative coatings since ceramic coatings are often hard and wear resistant, and since modulations in oxygen content or incorporation of small ions could give bright colours. The aim of this report was to investigate the relationship between process parameters and  the properties of the films, with the wear resistance being of special interest.Samples with tungsten to oxygen ratios in the range of 100:0 to 25:75 at% were made using reactive sputter deposition, either with constant gas flow, or gas flow controlled by optical emission of the plasma. The hysteresis of the system, which means that a certain gas flow will cause different pressure and/or target voltage depending on in what way the flow is reached, makes it interesting to control the process where the system makes the steep change from metallic tungsten to ceramic tungsten oxide. This is difficult and thus requires precise control equipment.The samples were analysed using X-ray diffraction, X-ray photoelectron spectroscopy and an empirical wear test suitable for small components like cell phone cover for example, in order to characterize the structure, composition and wear resistance of the coatings. The results could be divided into three groups: (I) tungsten-like, with very low oxygen content; (II) mixed phase and (III) tungsten oxide like, with oxygen content close to 75 at%.

This thesis examine if social voluntary organisations are independent or if they are being regulated by the public sector. We ask how free the organisations are since they get so much support and funding from the municipality. This is examined by looking at the homogenisation pressure, which means that organisations are being exposed by a pressure to become more similar. The control that the municipality has over the organisations is another aspect in this paper. The study focuses on the relation between the municipality of Linköping and three social voluntary organisations and their characteristics.

This master thesis is made of two parts. The first part concerns the method and results ofdesigning a motion control system for a piece of research-equipment called BIRGIT. Theequipment is made to be used for research on eyemovements. In the second part, a computermodel of a part of the balance organ in the inner-ear is developed. The work has been done atthe Bernadotte laboratory at S:t Erik Eye Hospital.The equipment the control system is made for is a so-called rotationchair.

The purpose of this master?s thesis is to examine how librarians perceive the importance of staff reading groups in helping to make fiction more accessible to adult users of public libraries. The study also examines how librarians perceive the learning processes in such groups, and what these learning processes involve and how they appear. The empirical data was acquired via observations of four staff reading groups and interviews with seven public librarians who took part in the groups. In part, the empirical data is interpreted by means of Lena Wilhelmsson?s analytical tool, which deals with changes of perspective within an organised group.

Abstract The main purpose of this study was to investigate if and how the employees in elderly care experience stress and which underlying causes they understand to be important in their work situation. The purpose was also to investigate whether Karaseks and Theorells demands and control models could be used to explain the employees feelings of stress and to see in which categories the participants are in. Furthermore, the purpose was also to understand the participants work situation and to describe the factors and remedies the employees perceive to contribute to the stress levels at their workplace. 81 questionnaires were distributed at three different locations, two of which were in Ronneby and one in Örebro. 56 people answered the questionnaires.

The Swedish society woke up Boxing Day 2004 to the greatest disaster in modern times. As a result of a strong earthquake in the Indian Ocean tsunamis occurred that devastated resorts where thousands of Swedes were. In the disasters tracks were uncovered government paralysis and shortcomings of the systems control. The purpose of this study is to examine the capacity and means to demand accountability of politicians and officials of the Swedish political system. Extensive studies and the report from the commission of disasters will form the basis for the study.

The Swedish Code for Corporate Governance was introduced on July 1, 2005. All companies then listed at OM Stockholmsbörsen A-list and those on the O-list with a market value of more than three billion SKr must implement the rules in the Code. The Code includes rules for corporate governance as a complement to the legislation. The Code is based on the principle comply or explain. This means that the companies are aloud to diverge from the rules if they explain why.

Skillnader mellan förstfödda och senarefödda är ett vanligt undersökningsobjekt, där välkända stereotyper finns. Förstfödda anses vara mer målinriktade, konservativa, ansvarstagande och kravfyllda, medan senarefödda ofta påstås vara tvungna att bryta mönster och är därför mer rebelliska och öppna för nya erfarenheter. Syftet med föreliggande studie var att undersöka syskonplaceringens påverkan på sättet att attribuera orsakerna till händelser och prestationer. Rotters locus of control-skala användes i en Internetbaserad enkät, till vilken en öppen annonsering nyttjades. Studien använde en inomfamiljsdesign och begränsandes till att omfatta en traditionell kärnfamilj med biologiska föräldrar och enbart helsyskon.

Denna rapport beskriver arbetet med utvecklingen av en ny modell för kaplanturbiner. Utvecklingen bygger på två kopplade differentialekvationer som under arbetets gång anpassats och implementerats i turbinmodellen.Modellen beskriver hur vattenflöde och turbinmoment påverkas av avvikelsen från den optimala kombineringskurvan för vinklarna på turbinens ledskena och löphjul, och är anpassad för ett referensaggregat med tillgängliga provdata. Även övriga enheter i vattenkraftaggregatet modelleras och sätts samman med frekvensregulator och elnät för att simulera aggregatets reglerstabilitet i önätsdrift.Verifieringen av turbinmodellen sker genom försök att återskapa de befintliga verkningsgradskurvorna med hjälp av modellen. Resultatet visar en god följning av de verkliga kurvformerna, dock med något lägre maximal verkningsgrad.Verifieringen av önätmodellen sker genom att prova stabiliteten i nätfrekvens och turbineffekt vid stegpålastningar. Resultatet ger en stabilare reglerstabilitet än i verkligheten, men uppfyller ändå förväntningarna på en fungerande modell.This report describes the development of a new kaplan turbine model.