Real-time systems are required to answer to external stimuli within a specified time-period. For this to be possible, the systems behaviour must be predictable. The use of active databases in real-time systems introduces unpredictability in the system, e.g. due to their use of active rules. The behaviour in active databases is usually specified in ECA-rules.

This paper investigates the possibilities to construct automatized portfolios based on optimizations strategies that could outperform comparable indexes. The study is based on time-series of Swedish stocks dating from 1986 to 2006. In the research four different portfolio optimization techniques were studied. These were: the Classical Markowitz Approach, Mean-Absolute-Deviation, Minimum-Regret and Conditional Value-at-Risk of which the three latter are based on generated scenarios. The behaviour of these models was studied for different choices of parameters such as backward time-horizon and targeted average return.

The purpose of this master's thesis is to examine children's communication and interaction during story time at the public library. The aim is also to examine how to develop the story time ? in terms of participation and equality ? at a specific library.Action research was used as a research strategy and participant observation, log, tutoring and interviews as methods to collect data. Since action research is done on the basis of practice, a significant collaboration with the librarian and the participant children is taking place within this study.Research from the fields of Library and Information Science, Education and Childhood Sociology form the interdisciplinary research area to which this study links. The theoretical framework consists of theory and concepts from the Socio-cultural Perspective, Poststrucuralist Feminism and Childhood Sociology.

The purpose of this study is to show how the modern society, with demands, expectations and the time constraints of adults, affects children and the everyday life at the preschool. Our intention is also to show the importance of identify stress symptoms of the children.        The study is of qualitative empirical kind and is based on a questionnaire to 19 parents of preschool children at the age of three to five years old. Interviews are made with four preschool teachers on one preschool. An observation of children in possible stressful situations is made during three days each at two preschools.     The results show that the modern society affects children and can be stressful. It also affects the everyday life at the preschool.

In modern society in terms of economics and environmental impact, it is important to ensure that a company is as energy efficient as possible to reduce the amount of energy used. About 10 TWh of electricity used annually to pump drives in Swedish industry. Therefore, pumping system has great potential for energy savings.The objective of this report was to determine how much energy and money that can be saved with the insertion of variable speed drive to six pumps on Bleach plant 4 in Skutskär Mill. The work was performed with electrical measurements during one week, analysis of pump curves and the compilation of production data over a year.The results show that four of these six pumps were profitable and yielded an annual saving of 1172 MWh of electricity and 560 000 SEK. With an economic lifetime of 10 years and a discount rate of 6.8% the final result for the entire life-cycle savings became 3 355 000 SEK.

IRB 340, Flexpicker is an industrial robot used for sorting, packaging and the handling of details up to two kg. The Flexpicker is a delta robot, meaning that it with three arms controls a triangular plate, swivel, in a work area shaped like a cylinder. Joints using plain bearings connect the arms.The plain bearing in use today consists of a plastic ring which slides against a hard anodized joint ball. Despite the fact that the plastic contain friction-lowering additives, the bearing needs to be lubricated to prevent noise. Because the robot is used in food and drug handling environments, where the demands on hygiene are set very high, the robot is often washed.

Göbekli Tepe is an 11000 year old religious center where Totem has been exercised. It was raised by megalithic hunters and collectors that still during the construction lived in small-scaled mobile groups in order to find food and therefore should not have had time to raised costly stone monuments. The religious center consists of four enclosures with two T-pillars decorated with pictures of different animals and birds. Any dwellings have not been found. The place has been constructed by a well-organized elitist organization that has been capable of raising constructions in order to exercise their religion in a way we did not thought was possible such a long time ago. Analysis and findings from the near east existing from this time shows however that social changes happen in the communities around the region. Can archeological finding from the excavations on the religious center give any answer or clue regarding how man came to develop from hunter and collector to farmer? Do the findings reveal that the religion has changed Mans way to think and organize so that she was prepared to introduce the agriculture that occurs? The aim of thesis is to clarify whether Göbekli Tepe has played any role in the complex origin of agriculture..

The report is about efficiency of a current production group where there is no clear production flow and there are some buffers between the operations. The efficiency is done with the help of a tool that is calledWork process of flow production which is used by Atlas Copco CTO. The most obviously results are that the lead time drops from 25 hours to 425 minutes and that the balancing loss decreases from 85 % to 8 %. The report focus on decreasing transports, decreasing buffers, more reliability in lead time and quality. And a more stimulating labour content for the workers is another result..

Turkey has taken part in regular negotiations to gain membership in the EU since 2005. At the same time is Turkey a candidate that stands out from those of earlier rounds of enlargement, and its possible membership got both supporters and critics amongst the Unions member countries. The aim of this thesis is to, trough a textual analysis, investigate the prospects and obstacles Turkeys candidature faces. The material consists of documents from a number of think tanks connected to the European Commission, as well as the Commissions own documents regarding Turkeys negotiations.A recurring picture is that Turkey is treated differently then earlier candidates, and that the Commission has a hard time keeping an unambiguous line in its negotiation frame. The material of the think tanks attributes the public opinions distrust of the member countries of EU as a hindrance, and Turkeys meddling in the conflict on Cyprus is problemized.

In this report the situation for cyclists on 2+1-roads is analysed and studied. Theseroads are often the old 13-meter roads that have been changed into 2+1 to increasethe security. Two road sections outside Motala in Sweden has been deep studiedand analysed. The different parts in the planning process show how the progressgoes. To begin with the change should be within the old 13 meters but after thepilot study was circulated for comments the result became a broadening to 13,75and 14,00 meters.

The pig is unique in the way that it gives birth to a large number of newborns in each litter. Because of this the sow has developed a special behaviour during suckling to ensure that not only a part of the litter gets all the milk. Milk is only available during milk letdown. The piglets have to massage the udder for a long time before letdown and the more piglets at the udder the sooner the milk comes. The sow has developed a special grunting pattern to let the piglets know when she is ready for suckling and to signal milk letdown. Our aim with this study was to investigate if sows have individual grunting patterns repeated over time. We also wanted to know if sows with a more distinct grunting pattern have better growth in their litters.

The purpose was to describe the significance of participation concerning leisure time and household duties for persons with mild intellectual disability living in a group home with some support from caretakers. Interviews were performed with five persons, two men and three women, living in such a group home. The questions in the interview guide had an open character and were divided into four different areas, leisure time, economy, cooking, cleaning and laundry. The results indicate that all informants felt they participated in all four areas. Further on, the results show there was participation of three different kinds.

Real-time systems are required to answer to external stimuli within a specified time-period. For this to be possible, the systems behaviour must be predictable. The use of active databases in real-time systems introduces unpredictability in the system, e.g. due to their use of active rules. The behaviour in active databases is usually specified in ECA-rules.

Real-time systems are required to answer to external stimuli within a specified time-period. For this to be possible, the systems behaviour must be predictable. The use of active databases in real-time systems introduces unpredictability in the system, e.g. due to their use of active rules. The behaviour in active databases is usually specified in ECA-rules.

Real-time systems are required to answer to external stimuli within a specified time-period. For this to be possible, the systems behaviour must be predictable. The use of active databases in real-time systems introduces unpredictability in the system, e.g. due to their use of active rules. The behaviour in active databases is usually specified in ECA-rules.