This thesis investigates techniques for stealth hydroacoustic communication using spread spectrum. The Swedish naval defense organisations have a vision that all their units should be able to communicate with each other, even between underwater vehicles. But the properties of water makes it a complex channel to use for wireless communications. Radiomagnetic waves have very limited range in water, therefore acoustic waves are used. In this report the basics of wireless communication systems are described including source coding, channel coding, modulation techniques as well as different techniques for spread spectrum.

The purpose of this study is to find out how some Swedish preschool teacher discussing how children's Swedish colloquial interaction can be enhanced in the free play. In this case where children are aged three to five.My research questions in the study are:-          What type of free play do preschool teachers talk about in relation to children's Swedish colloquial development?-          What do preschool teachers say about child's colloquial interaction?-           How do preschool teachers reason regarding in what environment children?s colloquial interaction occurs?In my study I have used an interview with elements of a visual method called The Diamond. The approach is that the participants in the interview will be enhanced to discussing about a wise certain number of images. These images are then to be ranked accordingly with a specific theme and terms.If a child has difficult to speak, you can take help of  the interest the child has, the child can tell you and the other children what he or she know about the interest.

This master thesis states the following questions: Is it easy or difficult to retrive information from a mobile phone manual? How can the search process be described among user for a mobile phone manual? What similarities and differeces can be identified between users? Arhe there any variables that affect search performance such as reading skills or technical domain knowledge? Eight mobile phone users participated in an empirical observation and the scope was to find information in a paper version of a mobile phone manual according to given tasks. The results shows that some users has problems to retrieve information due to that the correct page in the mobile phone manual could not be located. The results show that the user is using several search strategies, for example the table of contents and the index, when trying to locate information. The results also revel that the user initiates multiple search steps before the correct information can be located.

The Stockholm Bypass is an infrastructural project planned to be located west of Stockholm. This study investigates the argumentation concerning the project from different perspectives. The theoretical starting point is within Decision Theory. The main theories include Bounded Rationality, Kingdon's study of the political agenda and theory regarding venue shopping, framing and lobbying. The method chosen for this qualitative case study consists of both gathering data through semi-structured interviews and through documents provided by stakeholders and information available publically through archives and media.

The purpose of this Masters thesis is to investigate how students at an upper secondary school for adults use school and public library when searching for information for school assignments. The focus in this investigation is on the feelings and experiences of the process of the information seeking and use. The focus is also on the students experiences of school and public libraries and the help they receive from them in learning. The method used is focus groups interviews. Two groups were interviewed.

The purpose of our qualitative study is to investigate how the caretakers, in the elderly care,interpret and manage the issue of alcohol problems in elderly people. We have beenperforming semi-structured interviews on 9 people, on different levels in the elderly care.There were 3 elderly care managers, 1 nurse, 1 assistance administrator and 4 auxiliarynurses, who all, at some level, work with alcohol problems in elderly people. Thoseinterviews were performed singularly, with one exception: we interviewed an elderly caremanager and her 2 auxiliary nurses at the same time. To analyse our empirics, we have usedthe theories of Power and Ageism. Our study shows that the auxiliary nurses, who are theones who must deal with these problems, have great difficulties to perform their work becausethey have no qualified knowledge about alcohol problems.

The study seeks knowledge about the Swedish euro-scepticism and about the work of the Swedish euro-sceptical Members of the European Parliament (MEPs). How do they work in an environment where the norm is to have a positive attitude towards a future federal state of Europe? How do they regard their own situation and possibilities to make a change?The study includes a debate on today's Swedish euro-scepticism as background. My finding about the MEPs? work is that their way of acting in the European Parliament does not distinguish from other MEPs? in large.

This essay follows a Media Teacher in her work as a coordinator and an artistic leader for a European project called Legalopoli concerning laws and ethics in a senior level school for 13-16 year-olds in Mora, Sweden. The students write film stories about how their characters have to make choices in ethical dilemma situations. Then the learners create interactive computer games together through practical film work. At the same time we can see how the educator also gets into difficult ethical situations, when she is working with the students. This forces her to self-reflection.

The aim of this Masters thesis is to examine the accessibility in public libraries for persons with dyslexia and visually impaired persons. In order to do this, library services, information and attitudes have been studied. Data have been collected through interviews and studies of documents, in particular guidelines for library service to disabled persons. The theoretical starting point of the analysis is Professor Michael Bucklands different aspects of access to information. He discusses six types of barriers that must be overcome if access is to be achieved.

The purpose of this study is to examine how activities are looked upon, organized and put into practice at homes designed for the elderly. To achieve this we have done a survey study, based upon the caregiver´s point of view regarding the subject activity. The result of this study has been interpreted and analyzed with help from the engagement- and disengagement theories. The result shows us that the caregiver´s find the term activity slightly abstract, and rather difficult to define. All of the caregiver´s did agree on the matter that it?s good to activate elderly people and that the elderly people are activated at a large extent.

This study was designed to describe and understand how children perceive and explain mathematical situations. During our work based training we have met several students who have been insecure in the subject of mathematics and therefore come to think that it's difficult and boring. The questions we have asked ourselves are why and how this insecurity occurs. In preschools around the country teachers actively worked to create opportunities for children to meet and discover mathematics. The question is whether the teachers are aware of how children perceive mathematics and how children think in mathematical situations. We chose to conduct a qualitative study using different methods of data collecting in order to approach the children's world.

Learning Management Systems (LMSs) hold great potential to support learning activities, for example by providing teachers and students with new and extended spaces for interaction and collaboration. However, this potential appears to be difficult to realize, and despite their perceived learning benefits, the reality is that LMSs are being used primarily for administrative purposes. Meanwhile, external pedagogical tools are successfully put into practice to improve learning outcomes, and the aim of this study is therefore to identify and discuss benefits and disadvantages associated with the LMS as a concept. By interviewing secondary school teachers, we disentangle the idea of integrating administrative and pedagogical aids into a single platform, providing detailed insight into the use of digital tools in secondary education. The study contributes to a deepened understanding of integrated learning environments, and we conclude that there is a conflict between structure and flexibility that needs to be addressed before determining the design of a digital learning space..

The purpose of this study was to describe how journalists do research for their articles and whether there is a need to create a knowledge bank of the material that journalists use for writing these articles. I also looked at how knowledge management could be used at a daily newspaper to add value to the information used by the journalists. The thesis is based on four interviews with journalists, a literature review and a practical project. I helped a journalist with his information seeking and later tried to organize the material. This project gave me an understanding of how varying the material that journalists use is and how difficult it would be to try to organize it in order to create an organizational knowledge resource of the material.

The purpose of this essay was to do a research about if the language in Swedish role-playing books is used correctly and if the composition along with the possible language errors makes the books hard to understand.This research was also about to find out why these problems occurs and if the authors are aware of them.I choose books from two Swedish role-playing games, Eon and Drakar och Demoner. I read them trough, noted the mistakes made and put them together in a scoring table. I also did a LIX-test on the books and interviewed one of the authors.The results shows that the books to Eon is harder to read than the books to Drakar och Demoner and this agrees with the vision the authors of the books claims to have.The results also shows that it is not only the language mistakes and the composition that makes the books hard to read, but also the choice of difficult words and badly formulated rules..

This master thesis was performed at IdaInfront AB. The aim of the thesis was toinvestigate how the design principles ofthe user interface in Windows 8 can beapplied to a case management system. Theuser interface in Windows 8 is based ona design language called Metro and it isprimarily designed for touch screens.Ida Infront AB wanted to know whatpossibilities and limitations the Metrointerface offers.The study has resulted in a prototypeapplication that is developed in Windows8. The prototype shows how the Metrointerface can be applied on a casemanagement system. Some limitations inthe usability have been identified inthe Metro interface when applied to acase management system.