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 aim of this thesis is to analyze and explain the similarities and differences in management control between a private and a public primary care company. A comparative case study was developed based on one public and one private primary care company in Stockholm County Council. The framework of Otley (1999) was used to define and limit the area of management control systems, according to his five factors. For the analysis of the empirical results Hood's (1995) seven doctrines of New Public Management was applied, and customized to fit the purpose of the study. The results indicate that the differences between the two organizations are very limited.

I dagsläget finns ett problem med det fällbara kartbord som används i militära ledningsfordon. Större fokus på säkerhet och nya förhållanden har lett till att ett nytt bord behövs som är anpassat för den nya miljön och användarna. Arbetet har utförts i samarbete med BAE Systems Hägglunds och handlar omutvecklingen av ett nytt fällbart kartbord till det bepansrade bandfordonet BvS10 MkII.Utgångspunkten har varit att skapa ett mer användarvänligt bord som dessutom är billigare och väger mindre. Slutresultatet baseras till stor del av energonomianalys där höjd och lutning på bordsskivan analyserades med hjälp av datorsimulerade människor baserade på antropometriska data. Utöver ergonomianalysen har även ett koncept på fällning av bordet samt en hjälpmekanism till denna tagits fram.

The aim of this study has been to examine how a few members of the Finnish and non- Scandinavian Romani subgroups experience their own, and their groups, situation on the Housing- and Labour Market. We´ve studied our respondents? experiences of discrimination, which difficulties they think there are, what strategies can be used to deal with these difficulties and also their own ideas on how to improve the situation for the Romani people in the Swedish society. This has been done by six individual structured interviews which have been analyzed with concepts from Symbolic Interactionism, including Goffman?s Dramaturgical Role Theory, definition of Stigma and Kelly?s theory of Personal Constructions.

Sun Microsystems chose its own Open Source path by not following competitors in their commitment toGNU/Linux. Sun instead created its own Open Source project from the source of Solaris under the name ofOpenSolaris. The business model of OpenSolaris belongs to the new and more commercially viable OpenSource, referred to as OSSg2. This survey was based on articles on the adoption of Open Source in organizationsand István Orci?s publication Kritiska IT-System.

View description: The purpose of this study is to investigate in what way the mother tongue language education integrates in a compulsory school activities and also which significance it has to the students who studies mother tongue language. My questions are following:How does the cooperation look like between mother tongue languages teacher, teacher and principal?How do students perceive the mother tongue language education?How does the mother tongue language education take place at the school?Method: This investigation is classified as a qualitative study and consists of theoretical points and empirical material such as interviews and observations.  Based on hermeneutic view of tradition which means that I interpret all my material.Results: My results of this study is that the mother tongue language education does not integrate with the other school activities and the mother tongue language teachers does not cooperate with other teachers or principal at this school. The reason for this is mainly because the mother tongue language teachers work situation. I´ve also seen that language has to do with the creation of a personal identity.

Today there are many system development projects that break both budget and time plan. Often this depends on defects in the information systems that could have been prevented. The cost of test can in some cases be as high as 50 % of the projects total cost and it's at the same time an important part of development. Test as such has moved its focus from the software it self and its faults to a wider perspective on whole infrastructures of information systems where assure a good quality is important. Sogeti in the Netherlands have developed a test method called TMap (Test Management approach) that can be used for structured testing of information systems.

The Swedish energy companies have several different systems for data collection of the energy consumption of their clients. Often computerized remote meter readers are put in practice in order to register the energy consumption of large companies. The majority of household clients, however, are read off by the assistance of manual methods. Household power consumption is read off once a year. As a result, these clients are not debited for their actual consumption; their invoices during the year are the result of estimations.

Syftet med denna uppsats är att undersöka kontinuitet och förändring i holländares identitet(er) när de flyttar till Sverige. Teorier kring identitet och förändring/förhandling appliceras på empiri som framkommer ur intervjuer med fyra holländska informanter som har emigrerat till Sverige. Resultatet visar att identitet är något som informanterna anser vara relativt konstant under livets gång vad gäller personlighet, karaktärsdrag och nationalitet. Dock är de överens om att identitetsförändringar sker beroende på ålder och nya livsroller som exempelvis när man blir företagare eller förälder. Holländare och svenskar tycks vara så lika vad gäller utseende att myndigheter tror att även sociala, ekonomiska och politiska system liknar de svenska systemen.

The amount of information stored on the internet grows daily and naturally the requirements on the systems used to search for and analyse information increases. As a part in meeting the raised requirements this study investigates if it is possible for a automatised text analysis system to distinguish certain groups and categories of words in a text, and more specifically investigate if it is possible to distinguish words with a high information value from words with a low information value. This is important to enable optimizations of systems for global surveillance and information retrieval. The study is carried out using word spaces, which are often used in text analysis to model language. The distributional character of certain categories of words is examined by studying the intrinsic dimensionality of the space, locally around different words.

Syftet med studien är att analysera hur nyanlända elever integreras i den svenska skolan och att undersöka vilka arbetsformer lärare i förberedelseklass, och lärare som arbetar med svenska som andraspråk använder sig av i utbildningen av nyanlända elever. Kvalitativa intervjuer genomfördes med fem lärare på tre skolor i två olika kommuner i södra Sverige. Under intervjuerna låg fokus på vilka arbetssätt lärare använder sig av, gällande två viktiga komponenter i integrationsarbetet: mottagningen och undervisningen. Eftersom undersökningsgruppen är relativt liten så ger det enbart en insikt i hur arbetet kan se ut, men då likheterna är uppenbara så antyder det att samma arbetssätt förekommer på andra skolor. Resultaten visar att mottagningen sköttes på liknande sätt på alla undersökta skolor, det vill säga, deltagande vid första mötet med eleven var det samma, och kartläggningen påbörjades omgående.

Over the past one hundred years, there has been an increasing globalization and industrialization of the food systems. As a result, the distance between the production and the consumption of food has increased, both in time and space and in the minds of people. There is also an increasing concern for the environmental effects of industrial farming and the long distance transportation of food. Sustainable agriculture and efforts to build more sustainable food systems has emerged in opposition to the global food market. The definitions of sustainability usually include environmental, social and economical aspects. To build more localized food systems is seen as one way towards increased sustainability.

This paper aims to investigate whether a small organization with small development teams can find a value in leaving a functioning development process to follow a formal systems development methodology, if these organizations can find support in an agile systems development method and in such case the method needs to be adjusted according to the organizations unique conditions.A traditional plan-driven system development methodology includes a number of phases that are carried out sequentially and a completed phase can basically not be resumed. All requirements are specified at the beginning of a project and at the end of the project only one delivery of software take place. This can cause difficulties in for example dealing with changing requirements. Agile system development methods intend to deal with changing requirements and to enable continuous delivery of valuable, working software.In this paper, both the traditional plan-driven methods and agile methods will be explained. Research methodology and existing system development theories will be discussed and a company where the study has been conducted will be presented.

The aim of my study is to see how teachers in the early primary school are working to teach all their pupils based on how different ethnicities, cultures and multilingual differences reflect on their work places ? the classrooms. I've also contacted the county, were the schools are located in, so I could see what system they are using and how it affects the society.The Swedish society is influenced by different cultures, multilingualism and ethnicities the more time passes, which means that teachers all around need to integrate their pupils in the system so they can better adjust to how the Swedish school system works and be prepared for adult life. Teachers need to concentrate intensely on how they should guide the pupils in their specific class so they can reach their full learning potential and reach the knowledge criteria set by the Swedish school system.I contacted the board of education and to set up a meeting so we could discuss my project. During the meeting I asked the representative how they believe this matter should be handled.

This research is about how the educators view the best way to help multilingual students develop their understanding for mathematics. The aim of the study is to identify the different aspects from the teacher?s point of view of this new approach of teaching: what are the limitations versus the opportunities? The study is limited to a multicultural school in Stockholm and to the experience of a few class teachers and mother tongue teachers.A qualitative approach was used and the interview was selected as the method to collect the data. Three class teachers as well as three mother tongue teachers were interviewed about their experiences. The interviews were recorded and transcribed word by word.There have been discussions about the skills in mathematics in multilingual speaking students, and that their greatest obstacle of understanding mathematics is that they are being taught in another language than their own mother tongue.