This report discusses a method to detect divers in harbour environments usingpassive acoustic detection. The goal was to achieve as high detection as possiblewithout having too high false alarm rate. A short execution time was also desirable.By using the characteristic of an inhalation a band-pass filter was applied to the signalto improve the signal to noise ratio. After the filtering an energy estimation of thesignal was made. This energy estimation was later used in a frequency analysis, whichcould tell us if there were enough energy in the frequencies that correspond to adivers breathing frequency.

Radio Frequency Identification, RFID, is a convenient way to enable contactless identification which does not require any physical nor optical contact. As with any radio-based communication the signal can be intercepted, thus making the technology vulnerable to several kinds of attacks. Interception of communication is not the only threat. Since RFID tags might contain personal information or information that will grant the owner access to secure areas, skimming and spoofing attacks are also major threats against this technology. In this thesis report,  the perspective of an adversary is portrayed in an RFID-enabled environment by presenting where RFID is used and how it could be abused.

This essay is about the massive Iranian aid to Hezbollah and the Saudi Arabian, likewise, towards the Taliban. The main view is that the two countries aid respective aid to Hezbollah and the Taliban is/were not a gesture of goodwill but rather an economic method of getting influence and controlling the receiver. This view that is based on a theory called; economic statecraft. The economic statecraft theory is used in this paper to investigate why Iran?s influence towards Hezbollah has been successful while the Saudis ambitions with the Taliban have failed.

The control of indoor temperature must be able to handle large time constants and both measureable disturbances like outdoor temperature, and non-measurable disturbances, like waste heat from appliances. Due to cheaper microcontrollers (small computers with designated tasks) with better performance, more advanced and computation-demanding methods for control can be used.In this thesis, Generalized Predictive Control (GPC) has been implemented and tested on a theoretically derived model of a house. GPC states that a model of the system is estimated in every sample, and the control is carried out simultaneously, based on predictions of the model. Disturbances like solar radiation can be estimated and used in the control as well. The control signals are determined by quadratic programming, which makes it possible to consider conditions, for example limitations on the control signals.GPC requires a number of parameters to be defined, like model order and control signal penalty, but is relatively robust for variations in them.

The aim with this study was to examine professional peoples' view on the reason why females, under the age of 18 years old, self-harm and the professionals view on their treatment. The study is qualitative and based on eight interviews with professional personnel who work with young females with self-harm behavior in the region of Skåne. To be able to analyze our qualitative interviews we used two theories; the attachment theory and trauma theory. The results of this study show that there are many different functions with the self-harm behavior and that the cause of the behavior can be different among the females. Most of the young females seem to self-harm to reduce anxiety but some also do it to punish themselves, to feel alive or to belong to a group of friends.

The purpose of this essay is to investigate and analyze how widely and intensive genderequality issues are considered within Swedish companies. Qualitative interviews werearranged with personnel managers within each company, and complemented with aquestionnaire amongst the employees. The collected information was analysed on the basis ofgender theory, organization and change theory, theory of equal opportunities and historicalstatistics. The outcome of the analysis indicates that companies find gender equality of highinterest, and important to address within the daily work. However the analysis also shows thateven though the companies find gender equality important it is only adopted within few areas,and not across all departments.

AbstractAll headmasters want to lead teachers so that the students will achieve their own goals as well as the goals of the education. The salutogenic leadership is a way to lead in the right direction. This type of leadership depends on Antonovski?s (2005) theory of Sense of coherence. The theory of Sense of coherence is built on the concepts of comprehensibility, manageability and meaningfulness.

AbstractOne aim of this thesis, has been to explore how discursive frames are constructed, frames to relate to, compare with, and therefore be part in shaping political subjects. The other aim has been connected with a more empirical platform, where I wanted to discover how these frames are established and structured discursively within a political organization, among its members; in this case with a foucs on the Swedish social democracy and its former leader Olof Palme. The thesis starts with a theoretical presentation and discussion, where focus is on the concepts of ideology, discourse theory in the form of Laclau and Mouffe, and narrative theory. The concepts will be presented and discussed, and also related to the other concepts to see their theoretical potential, both ontologically and epistemologically. Finally the theoretical rudiment is linked and analyzed with the empirical material.

This thesis studies the stock price reaction around 68 announcements of special dividends and share redemptions on the Swedish stock market between the years of 2003 and 2007. We show that for the Swedish private investor, the tax effect of a share redemption is lower than that of a special dividend. Moreover, a share redemption could be interpreted as a signal of undervaluation. These two factors lead us to assume that the stock market would react more positively in connection to the announcement of a share redemption. We test this hypothesis through an analysis of the risk-adjusted abnormal return for the observations in the sample.

This literature study aims to examine the existence of cancer stem cells in breast cancer. The cancer stem cell theory states that there is a hierarchical organization within a tumour, in which a small subpopulation of the cells can initiate new tumours and maintain tumour growth whilst the bulk of the tumour cannot. These tumour initiating cells have shown to possess many characteristics similar to those of adult stem cells, which is why they are often referred to as cancer stem cells. Both cell types have the capacity of asymmetric division and have shown to possess mechanisms of resistance to both apoptosis and cancer drugs. The cancer stem cell theory elucidates many biological aspects such as the heterogeneity of tumours and the relapse of many cancers after what appeared to be successful treatments.

Aim: To investigate how three of the biggest political parties in Sweden made use of socialmedia in the election campaign in 2010, and to get a picture of how the parties perceive therole of social media in political communication today and in the future.Method: The research is conducted through personal interviews and qualitative textualanalysis.Theory: The theory that the study is based on is Habermas theory of the public sphereMain results: Social media is today an excellent channel for communication and informationbetween politicians and voters, and they will probably become increasingly important inpolitical communication in the future. So far, they are only an addition to the traditional mediaand are in no way substituted for them. Internet and some social media is an excellent forumfor political debate and opinion-former..

Parents today can be very stressed at the drop off and pick up of their children, this leads to that they sometimes miss important information that is pinned to the walls for example. Papers has the ability to disappear, a blog collects all in one place. Today, almost everything is digitized.This study has examined what a blog is and how schools and preschools can use it. The blog is used as a communication site for the preschools and school. This exam graduate work is made of three blog analysis, the analysis is made to see if the blogs can help the preschool and school to communicate wiht the parents.The theory I have decided to use in this study is the sociocultural theory.

Aim: The aim of this study is to understand why people have changed their preferred community over time. What are the main factors when changing to a new one?Method/material: The method has consisted of personal interviews with six different people in the ages between 20-22 and of different gender. The main material that has been used in this essay is the theory of Uses and Gratifications as explained by Denis McQuail, the theory of Convergence culture by Henry Jenkins and the theory about Communites of Practice by Etienne Wenger.Main results: This study shows a heavy affection that the use of communities often centers round the people around the community, rather than the functions that the communities themselves provides. Having people that you know on the community you choose is a vital part for people or at least having the support of other people and changing to another community at the same time.

Människor tenderar att attribuera framgångar till sig själva och misslyckanden till externa källor, fenomenet kallas för Self-serving bias. Hur individer attribuerar kan enligt forskning påverkas av bland annat graden av självkontroll samt självkänsla. Enligt forskning kan intentioner eller beteendemål aktiveras automatiskt och omedvetet av en utlösande signal, så kallad priming, och därmed aktivt guida en persons självreglering. Denna studie har genom ett experiment, med 56 högskolestudenter, undersökt om priming av självkontroll och självförtroende kan påverka hur en individ attribuerar vid framgång och misslyckande. Resultatet visade ingen signifikant skillnad mellan priminggrupperna.

Climate change and the sea level rise that it contributes to is an ever more pressing issue for costal municipalities around the world. Today there is a great deal of scientific reports and projections on what these changes could entail. However, resent studies on south Swedish costal municipalities have shown great discrepancies when it comes to how these scientific projections are implemented in the municipal planning and adaptation strategies. In an effort to understand the underlying reasons for this lack of concurrence, this paper has applied Rolf Lidskogs theory of the hetrogenity of science. The theory gives an explanation to the complications in the science-policy interface, by describing complicating factors in the communication between these actors.