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.

Barley is one of the most important cereals cultivated in the Nordic countries. Climate change brings warmer and moisture climate which favors fungal diseases. In the cropland barley can be seriously infested with hard fungus attack. Since it is important that the yield bears a high quality it is of great importance to find varieties more resistant to attacks.Pathogenesis-related (PR) proteins are stress proteins induced in the plant in response to infection and abiotic stress (van Loon, 1997). PRs are shown to have antimicrobial activity differing between bacteria, fungi and oomycetes (Tandrup Poulsen, 2001).

Title: Det nya Ryssland - En inblick over Rysslands utrikespolitik under 2000-taletAuthor: Tim Balder and Jens KindhLinnaeus UniversityDepartment of Political ScienceAutumn term 2011The purpose of this thesis is to gain a better understanding of how the Russian foreign policy is, how it is conducted and how it may develop in the future. To do that, we are going to try to answer the following questions:What characterizes Russia's official foreign policy?What theories are there for the Russian foreign policy?How can the various theories explain the Russian foreign policy actions at the international level?Our theory is to try explaining how the Russian foreign policy is continuing its development during the 21st century through three theories known as the Western liberalism, Pragmatic nationalism and Fundamental nationalism. Furthermore, to explain Russia's foreign policy and their behaviour, we are going to use the two foreign policy doctrines from 2000 and 2008. In addition, books and articles will also be used to explain how Russia's foreign policy is conducted and developed..

The aim of this study is to look at the environmental effect on toddlers? social interactions during free play in two older and two newer preschools. Furthermore, we would like to investigate four preschool teachers? thoughts about the indoor environment when it comes to toddlers? interaction during free play.Qualitative methods containing interviews of the preschool teachers and observations of the children during their free playtime have been used to help us reach our conclusions. In addition, our theoretical conclusions have been derived from both the sociocultural perspective and the environmental psychology perspective.Our results have shown that variations in the preschool environment are of importance in the outcome of toddlers? different social interactions.

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.

In order to facilitate testing of anesthesia machines a patient simulator has been required by Maquet Critical Care AB. A patient simulator has been developed to reduce expensive and time consuming animal experiments and temporary lab arrangements. The patient simulator has been developed and designed to simulate human lungs with regards to anesthetic uptake, production of carbon dioxide and heating and moisturizing exhaled air.The system comprises a container and a test lung to simulate the volume and the dynamic of the human lung. The simulation of uptake of anesthetics has been implemented by pumping a fraction of the gas from the container through a bypass circuit with an active charcoal filter that adsorbs volatile anesthetics. The flow through the bypass circuit is generated by a pump and is controlled by a linear valve.The resulting performance of the patient simulator has fulfilled the requirements.

This is a study on how eurythmists/educators describe the relationship between the practice of eurythmy and learning in young children. I wanted to find out what concepts these eurythmists/educators use when speaking of learning in relation to eurythmy. In addition I would also like to explore what eurythmists and educators think that children learn when practicing eurythmy. The method of this study is interviews with two educated Waldorf teachers, as well as two educated and practicing eurythmists, in a fenomenological interview setting with open questions. The theories of Merleau-Ponty, on the phenomenological body, has been used when analyzing the interview material - that is; through the understanding of a physical learning in these theories on the phenomenological body I have tried to understand and analyze the interview material.

The purpose of this work is to find out how present manager contracts are set up in Landstinget Västmanland (the county council of Västmanland), explore managers? perception of these contracts and why managers have chosen leadership. The work has also reviewed the question if managers need to have a relationship or expertise to the activities they lead and which qualifications are needed in such case. The survey was conducted in two divisions in which nine interviews were held with managers at all levels. In addition to this a questionnaire including the 87 managers in the divisions were held.

Zero knowledge protocols is a lesser known type of protocol that can be used for identification. These protocols are especially designed not to reveal any information during an identification process that can be misused later on, neither by the one who should be convinced of the identity of the user, nor by anyone else that is eavesdropping. Many of these protocols are also especially designed for implementation in smart cards. The more common type of card with a magnetic stripe has during the last few years become more susceptible to attacks since they are easily copied. Smart cards combined with a secure identification protocol has been predicted to be the solution to this problem.

These days, schools are obliged by the law to prepare an annual plan for the prevention of bullying and degrading treatment. The purpose of my work is to investigate the 2 schools efforts to prevent bullying and abuse and how they live up to legal standards. But I have also examined how students in school are experiencing anti-bullying work in their school. I have also examined how much funding schools put on to prevent bullying I school. In this study, I have done interviews with school principals and students to have a clear picture about the school?s anti-bullying work.

The purpose of this study was to look into how evidence evaluation in verdicts considering 2 § LVU (Care of Young Persons Act) linked to honor related problems are handled by the County Administrative Court of Stockholm. The questions at issue were how the County Administrative Court handles the prerequisites regarding 2 § LVU verdicts, how the County Administrative Court proceeds when evaluating evidence in 2 § LVU verdicts, and how the County Administrative Court handles indications of that a child is living in an honor-related context. To answer this, five verdicts have been analyzed. In addition to this, two interviews were made as a complement. In the analysis of the collected material, the authors proceeded from a theory of evidence and used a hermeneutic method for the analysis.

The present study aimed to replicate Tversky & Kahneman's' survey of 1981 The Asian Disease Problem. A survey was conducted on the Internet (N = 200). An identical problem was added, yet with The Swine Flu as the disease. This was done to be able to investigate if there are any order effects, and also if it matters whether the mentioned disease is fictional or real. The results show the same results as Tversky & Kahneman already noted; positively and negatively framed problems generate different responses from the participants.

The aim of this essay is to do a queer reading of the early Swedish pentecostal movement, with a special focus on the women within the movement. The main empirical material is Gustaf Emil Söderholms Den svenska pingstväckelsens historia part I and II, published 1927 and 1928, in addition to this a selection of articles from the Swedish pentecostal magazine Evangelii Härold has been used. The theoretical framework consists of Judith Butler's concepts of heterosexual matrix and performativity, as well as interpellation, and of Adrienne Rich's concept of a lesbian continuum. The analysis shows that the evangelist role, as well as the charismatic practices of the movement, made it possible for women to take the position as leader and teacher of congregations, and thereby take up a male subject position. The role as evangelist also made possible a life outside of the heterosexual norm, within the lesbian continuum..

All companies wants? to be as profitable as possible. The company in question is one of the leaders in it´s field in Sweden. In order to increase profits as much as possible it is important to identify and eliminate eventual quality defect cost as far as possible.This study was performed in Huddig AB, and the purpose of this study is to try to develop a routine for monitoring the quality defect costs, and to improve communication and create feedback between production and aftermarket.In addition to an extensive literature review on quality defect costs most of the work have been conducted at the company. Own observations and interviews have been done with the staff to get a picture of the current situation and to try to come up with improvement proposals.During the study it was proved that much of the quality defect costs in essence, derived from the production, which is seen as positive because it is the easiest part of the company to improve.

This project is a learning CD-ROM production aimed at first-time parents. It is using both sound and images, moving as well as non-moving. The purpose of the production is to be an interesting alternative to traditional books. We have been looking at similar productions like drivers license educational CD-ROMs and encyclopedias for inspiration and ideas on how to proceed. In order to give the content some dynamics, we've also added the element of 3D-animated sequences. The application is supposed to be run as a simple executable file with flash embedded.