Linjäriseringar av olinjära system är mycket relevanta eftersom det finns en i förhållandevis enkel och omfattande matematisk teori kring linjära system, till skillnad från allmänna olinjära system.För vissa olinjära system är det svårt eller inte ens möjligt att genomföra en analytisk linjärisering.Orsakerna till detta kan vara hög komplexitet av systemet eller avsaknaden av ett analytiskt uttryck.Numerisk analys kan vara en lösning på detta problem.I detta examensarbete används framåtdifferens och centraldifferens för att genomföra de derivata-approximationersom behövs för att genomföra en numerisk linjärisering av ett olinjärt system.Rapporten behandlar även vad som sker då det är dålig upplösning på den indata som används när man genomför enlinjärisering, vad som händer med heltal och binära signaler om de ingår i ett system som linjäriseras ocheffekten av att ha olika samplingstider för olika delmoduler i ett system som linjäriseras.Slutligen undersöks numerisk bilinjärisering av ett system på bilinjär form och en jämförelse mellan analytisk linjärisering och bilinjärisering görs..

Students? experience of stress is generally considered to be an isolated problem, caused by school work. Students? experience of stress at school can also be affected by exterior influences.This research aims to discover what factors Swedish students, age 13 ? 16, experience as stressful. It also aims to describe how students believe this stress can be reduced.

Research has shown positive correlations between global self-esteem and physical activity, as well as between global self-esteem and school performance. However, research is ambiguous and other variables have shown importance for global self-esteem. This study aims to investigate the correlations between global self-esteem and physical activities, school performance and social participations within high-school students in the northern part of Sweden. The study also investigates gender differences regarding correlations between the variables. The study was conducted using a questionnaire that included Rosenberg Self-Esteem Scale and self-rated physical activity, social participation and grades in Swedish, English and mathematics.

Banverket Trafik has a responsibility to make sure that the companies who traffic the Swedish railroad have the correct information about the status of the railroad. One of Banverket Trafiks information systems (Opera) presents the train?s actual position on a map and provides the user with physical information about the trains. Due to increasing demands on the information systems, Banverket Trafik needs to update the present system architecture in order to manage the increasing demands on map graphics and map functions. This paper analysis the information system Opera on the basis of theory and support of methods and discuss problems and demands for Opera.

Abstract.In Sweden today, a collaboration was formed between the Swedish Sport Confederation andthe Swedish upper secondary school education. While this process was taking place, theSwedish Sport Confederation also tried to collaborate with the Swedish Academy. However,at the time the Academy did not have any involvement with the former.The purpose of the study was to research when and how the Swedish Sport Confederationcreated a collaboration with the Swedish Education Systems both on a National and Locallevel. I have also done a research on both the Knowledge Society and Elite sport talents tofind out if Elite sport will be affected in any way because of the existence of Knowledge Society,and also the reactions of the sports talents if any. My final pursuit was also to find out ifthe Knowledge Society can bring about a quick change to this silent conflict between theSwedish Sport Confederation and the Swedish Academy.For my study, I have used two different theories.

The purpose of this thesis was to investigate the communication between banks and their customers. Delimitations were made and the focus became towards upper secondary school students. The study was based on two interviews with bankers on different locations and with different stature, and a focus group consisting of eight upper secondary school students. The conclusion of the thesis was that there are certain problems in the communication between banks and upper secondary school students. The bank didn?t always communicate on the same level as the students when they presented their proposals.

For a school library to function as a support for the students? development of their academic abilities, it must provide material satisfying their needs as well as the needs of the teachers. The school library should assist the students in their research endeavours, as well as inspire reading for pleasure. In order to do this it is imperative that the school library actively develops the existing collection and continually strives to meet the needs of its users. The aim of this Master?s thesis is to describe and reflect upon how a particular school library works with collection development.

 The upper secondary school has a responsibility to give every student enough knowledge for a healthy life after they finished school, this is stated in the curriculum. Although the way of reaching this knowledge or what knowledge that is to be obtained regarding health is not stated in any way, this is the teacher's job to figure out. This knowledge shall be the same regardless of where you live, this could prove to be a problem as different teachers interpretation of health will reflect the pupils knowledge of their own health. This work points out some of the problems that can arise due to the complexity of the concept of health as there are no guidelines in the curriculum that could be of help for teachers'. Through interviews with active physical education teachers and questionnaires for their pupils this work illustrates several aspects of problems most likely occurring in school regarding the health education..

Students at Jönköping School of Engineering were given an assignment from Jönköping municipality, to evaluate their decision support system, QlikView. The students have also developed proposals for improvement with focus on usability.The Jönköpings municipality has currently got 11000 employees and consists of nine different administrations. The target group for QlikView is approximately 600 first-line managers.The intention of QlikView is that the users can get an overall picture of their business by having all information in just one system.The purpose of the thesis is to obtain a picture of what the users think about the system today and present relevant suggestions for improvement, which the Jönköping municipality can use when the introduction of the new version of QlikView takes place. The research questions that the study aims to answer are:? Has QlikView got a user friendly interface?? How can the interface be improved to become more user friendly?Theories that this work is based on is Jacob Nielsens ten usability principles and Ben Schneidermans eight golden rules.

Students at Jönköping School of Engineering were given an assignment from Jönköping municipality, to evaluate their decision support system, QlikView. The students have also developed proposals for improvement with focus on usability.The Jönköpings municipality has currently got 11000 employees and consists of nine different administrations. The target group for QlikView is approximately 600 first-line managers.The intention of QlikView is that the users can get an overall picture of their business by having all information in just one system.The purpose of the thesis is to obtain a picture of what the users think about the system today and present relevant suggestions for improvement, which the Jönköping municipality can use when the introduction of the new version of QlikView takes place. The research questions that the study aims to answer are:? Has QlikView got a user friendly interface?? How can the interface be improved to become more user friendly?Theories that this work is based on is Jacob Nielsens ten usability principles and Ben Schneidermans eight golden rules.

Students at Jönköping School of Engineering were given an assignment from Jönköping municipality, to evaluate their decision support system, QlikView. The students have also developed proposals for improvement with focus on usability.The Jönköpings municipality has currently got 11000 employees and consists of nine different administrations. The target group for QlikView is approximately 600 first-line managers.The intention of QlikView is that the users can get an overall picture of their business by having all information in just one system.The purpose of the thesis is to obtain a picture of what the users think about the system today and present relevant suggestions for improvement, which the Jönköping municipality can use when the introduction of the new version of QlikView takes place. The research questions that the study aims to answer are:? Has QlikView got a user friendly interface?? How can the interface be improved to become more user friendly?Theories that this work is based on is Jacob Nielsens ten usability principles and Ben Schneidermans eight golden rules.

Students at Jönköping School of Engineering were given an assignment from Jönköping municipality, to evaluate their decision support system, QlikView. The students have also developed proposals for improvement with focus on usability.The Jönköpings municipality has currently got 11000 employees and consists of nine different administrations. The target group for QlikView is approximately 600 first-line managers.The intention of QlikView is that the users can get an overall picture of their business by having all information in just one system.The purpose of the thesis is to obtain a picture of what the users think about the system today and present relevant suggestions for improvement, which the Jönköping municipality can use when the introduction of the new version of QlikView takes place. The research questions that the study aims to answer are:? Has QlikView got a user friendly interface?? How can the interface be improved to become more user friendly?Theories that this work is based on is Jacob Nielsens ten usability principles and Ben Schneidermans eight golden rules.

Introduction: In this investigation I have illustrated, teacher treatment in a mono-cultural pre-school class and in a multicultural pre-school.Purpose: The purpose of the study was to illustrate how educators go about it when they face bilingual children to see how they work in a comparative perspective. The purpose was answered, based on four questions relating to how teachers relate to the meeting with bilingual children, the approach teachers use, which operation mode the use, if the take advantage of children's traditions, and if there is any different in the teachers? treatment of bilingual children in the mono-cultural pre-school class and in the multicultural pre-school.Theories: The theory is linked to the concepts like operation mode, inter-cultural approaches and communications.Methodology: The used methods are qualitative interviews with four pre-school, teachers where an interview guide with formulated questions and observations were used. The purpose of the working methods was to highlight teacher treatment of bilingual children to discover different approaches to meet the bilingual children.Conclusion: The study has shown that the multicultural pre-school working inter-culturally, they are taking advantage of children's home language that is lifted in the nursery and the children's background, while in the mono-cultural pre-school class, they meet bilingual children foremost to develop the Swedish language and they also show interest to the children's traditions. Teachers? treatment leads to a growing confidence in the children and knowledge for the cultural background..

The purpose of this study was to examine how school personnel describe and interpret the phenomenon bullying among girls, and also what their interpretations are based upon. More specifically its aim was to find out what characterizes and causes girl-to-girl bullying, according to school welfare officers and teachers. We wanted to find out how school personnel look upon aggression among girls and social expectations on girls behavior. The analysis was based on two kinds of perspectives: one focusing on gender and one focusing on power in relationships. Research shows that girl-to-girl bullying is hard to observe and that this problem has been invisible in earlier studies.

The study is of qualitative research method, where the interviews are the main material for the study. This study aims to analyze teachers and pupils perspectives on outdoor education in the early years of the elementary school. The main reason for this study is that all the literature in the area tends to lift up the positive aspects of the field. While the practice of education tends to go the other way, where the majority of our children?s classes takes place inside the classrooms.