This master thesis in energy optimization was made during the autumn of 2006 at Käppala wastewater treatment plant in Lidingö, Stockholm. A preceding thesis, where all electricity consumption was mapped, showed that the aeration in the biological treatment is the single largest consumer in the plant, and it is therefore of interest to reduce this cost. The oxygen control strategy used at Käppala WWTP is working well from a nutrient removal point of view, but not from an economic one. The last aerobic zones have a very low oxygen consumption during low loading periods which give rise to enhanced dissolved oxygen concentrations with excessive costs and reduced denitrification as a result. But also during periods of normal loading unnecessary high oxygen concentration are sometimes given.By modifying the aeration control strategy three full-scale experiments have been made, with the intention to reduce the air consumption.

This essay aims to examine managers experiences of control at the workplace within the property sector, and how these experiences differ between female and male managers. This study is a qualitative single case study that intends to offer a deeper understanding of a unique case and uses an abductive method approach. The essay is based on two main theories, Foucault?s (2003) theory of control and the gender system of Hirdman (1988, 2001) and is supplemented by previous studies of the modern workplace. The study is based on eighteen semi-structured interviews that aims to capture the participants personal experiences regarding control at the modern workplace, and the norms, surveillance, hierarchies, and self-discipline that make up this control.

Being a trustee within the disability care will, in most cases, put big responsibility on the trustee both as a representative for the klient but also as a representative for the standards of the society. The assignment as a trustee is to strengthen the client and ease his/her way of living in the society. The Swedish legislation that controls the process and the regulation of the trustees, is by the authors of this paper preceived as kind of vauge, leaving a lot of room for interpretation. So  how do trustees comprehend their assignment and how do they actually interpret it? Using material from eight interviews with trustees within the disability care, this paper aims to examine these questions, and focuses only on the trustees and their experiences.

In this project I have created a design for the delivery rooms of Swedish hospitals with the psychological aspects ofbirthgiving in focus. This is something that I think the delivery rooms lack and so far it has been the midwifes job to,without any tools, give the women in labor the mental support and encouragement they need.My goal was to give the midwifes a tool to work with when it comes to encouragement, something helping themhelping the woman to feel safe and relaxed, strengthened, informed and in control of the situation.I choose to focus on the difficulties measuring the physical work the woman in labour had done and what was leftof the labour. I wanted to visualize the process of the birth, allowing the woman to see and being able to focus onwhere during the labour she is, how far she has left and also being strengthened by the amount of work already managed.Further I wanted to make the woman feel invited to take control over the birth and the room in which she isin labour. I wanted her to be able ? if she wanted ? to make her own settings of the mood in the room, deciding forherself if she wanted a more relaxed environment or perhaps a more energetic.

Every business is subject to service failures. The process of correcting these failures and turning disappointed customers back into happy ones is called service recovery. This is particularly important in the hotel business, where there are many moments of truth where customers may become dissatisfied. To further complicate things, service recovery is a process where you may have to correct errors of others - people beyond your control. The research field is relatively new and there are no turn-key solutions as to how to systematically work with service recovery.

The accounting scandals that have attracted attention in recent years have led to internal control becoming a more central part of business activity. Doubts about what firms actually do have increased, all caused by the attention of accounting scandals. To counter this, frameworks and laws evolved and gained a significant role in the organization and its surroundings. The aim of the present study is to find out how four companies in the Kristianstad region are working to ensure its internal control and how they work to minimize risk and reduce uncertainty. We have used a qualitative method and interviewed a person in a senior position in each company.

Management control systems are a popular area of research and a lot of new research has been done over the past years. This development has been looking into new situations and circumstances, and interdisciplinary studies are being made to further understand the connection between different fields of study. A new field of study that has grown significantly over the past few years is the connection between management control systems and entrepreneurship. Leading researchers have proposed a number of questions for further research and one of them is the board of directors? use of management control systems in entrepreneurial firms.The purpose of this study was to examine the differences and similarities in the board of directors? use of management control systems between entrepreneurial and non-entrepreneurial firms.The study was conducted as a deductive qualitative study through interviews with respondents from entrepreneurial and non-entrepreneurial firms.

This thesis studies the negative impact that control signal saturation may have on a controlled system. Different methods that are used to compensate for this problem are also studied and evaluated. Both sensitivity to disturbances and the effect the method has on the systems'ability to follow a reference signal will be examined. Stability will be discussed, but no conclusions whether the systems are stabilized or not can be drawn. Control signal saturation will lead to a slower behavior in general.

Transfer pricing including internal loans have increased in recent years, making it easier for companies to minimize their taxable income. After the Swedish court case Diligentia, there have been discussions regarding the influence of a parent company's transparency and control of the subsidiary with regards to the interest rates on internal loans. In court cases that followed Diligentia, the Swedish Tax Agency argued that a parent company always could be assumed to have sufficient transparency and control of the operations in the subsidiary, and therefore reduce the risk on their debt obligations. This thesis seeks to analyze the effects of the transparency and control a parent company has with regards to interest rates on internal loans. The analysis is conducted by analyzing court cases similar to Diligentia.

The purpose of this study was to increase the understanding of how patients following cerebral vascular attacks percieve personal Control and their ability to influence the course of their rehabilitation. Specific questions relating to the concept of Health Locus of Control such as perception of personal responsibility and own influences as well as the recognition of the influence of outside phenomena such as faith, luck and divine power were asked for. The empirical findings of this study were based upon semistrucutural interviews with five respondents. The results showed that the respondents efforts, together with the efforts of others were a necessity in successful rehabilitation. The influence of faith or luck on the other hand, was not percieved as a factor for success.

For many providers of ERP-system, Poland is one of the most valuable markets in Central andEastern Europe. The Polish market for ERP-systems is still a growing market, especially; wecan see the low utilization of ERP-systems among small and medium-sized enterprises. Thisis due to several factors, primarily the cost of implementing the system and the necessary infrastructure.Subsequently due to the lack of knowledge, where there is no sufficientknowledge of the benefits arising from the use of an ERP-system in their business, and thereis a fear within the companies that its business would start stagnating.This paper investigates the implementation process of a Polish consulting company whichworks towards small and medium-sized businesses. The key success factors will be studied inthe implementation of ERP-systems, and the instance factors of the interrelationship betweenthe consultant and client from a consultant perspective. The review of the literature has beenidentified and discussed in relevance to the empirical study.

This thesis examines a possible control strategy to minimize flow fluctuations in Uppsala?s district heating system. High variations in flow rate may lead to complications caused by hydraulic constraints in the district heating system. These complications, such as inadequate pressure and temperature levels, increase the risk of heat delivery failures. It is therefore important to avoid such situations both for the producer and for the customers.Typically, the forward temperature is controlled by using a rough correlation with respect to the outdoor temperature.

When using the digital halftone proofing systems, a closer print match can be achieved compared to what earlier couldbe done with the analogue proofing systems. These proofing systems possibilities to produce accurate print match canas well lead to producing bad print matches as several print related parameters can be adjusted manually in the systemby the user. Therefore, more advanced knowledge in graphic arts technology is required by the user of the system.The prepress company Colorcraft AB wishes to control that their color proofs always have the right quality. This projectwas started with the purpose to find a quality control metod for Colorcraft´s digital halftone proofing system(Kodak Approval XP4).Using a software who supports spectral measuring combined with a spectrophotometer and a control bar, a qualitycontrol system was assembled. This system detects variations that lies out of the proofing system´s natural deviation.The prerequisite for this quality control system is that the tolerances are defined with consideration taken to the proofingsystems natural deviations.

The purpose of this study was to investigate the relationship between Health Locus of Control, Exercise habits, Food habits and Self-esteem (Personal self and Physical self) between two groups of student teachers at a university in the south of Sweden. Is health such as exercise, eating and self-esteem something that is controlled by internal or external factors? Student teachers that participated in Physical and Health programme and student teachers that participeted in other programme were investigeted. The participants (N = 160) answered the questionnaire. The Health Locus of Control scale and Tennessee Self-Concept Scale were used.

Organisationspsykologi kan ibland upplevas allt fo?r problemorienterad med stort fokus pa? just problem och konflikter i organisationer. Det finns dock en inriktning pa? de fo?rha?llanden och processer som bidrar till att ma?nniskor, grupper och organisationer kan frodas och fungera optimalt. Denna studie syftade da?rfo?r till att underso?ka eventuella samband mellan positiv feedback, self-efficacy, locus of control och socialt sto?d.