In this thesis some different modulation schemes for xDSL-techniques are compared. The investigated techniques are ADSL, G.lite, ADSL2, HDSL, SHDSL and VDSL. The modulation methods used are DMT, CAP and different versions of PAM. Several broadband techniques also use Trellis Coded Modulation (TCM) to increase the coding gain of the transmission. For each one of the different modulation methods the signal-to-noise ratio is calculated for generating a bit error rate probability of 10-7.

Because of increasing demand of power on Malmbanan the capacity of the existing wires which supply the trains must be increased. This increases the stress on the existing poles and for this reason the system for supplying the loads along the railway is to be removed from the poles and be replaced by some other system. This thesis is a study on a two-level low voltage (1 kV and 0.4 kV) electrical system with the aim to investigate if it can be an alternative to the system used today taking into account the voltages, fault currents and costs.In this thesis the following tasks have been performed:? Gathering of data? Description of basic theory? Loadow and fault current calculations of the system with MATLAB? Life Cycle Cost estimate of the system? Analysis and conclusions from the resultsThe results show that the new system can be an alternative to replace today's system. The simulations and calculations show that the voltage drop is at an acceptable level and that the fault currents are large enough to supply a safe disconnection if a fault occurs at the far end of the system..

Art in the city can be invisible until we talk about it. Letting children see public art in the context of play and narrative is a way to enhance creative thinking and knowledge as well as making the art visible. By creating a prototype for an art walk for children this study was able to create a scenery of children using different kinds of mediated narrative combined with a physical environment and movement. The theoretical framework of the project was picture books (Rhedin, 1991) transmedia (Jenkins 2006, Ryan 2004) and public art (Kwon 2002). The project?s aim was to create an empirical context for primary school children to explore public artwork.

Background: The request for the Reggio Emilia practice has expanded enormously the last couple of years within the Swedish preschools. This particular practice describes the environment as a third educator. This third educator is supposed to work as - not only a tool - but also a support to ease children's learning experiences and help develop their mind. Previous research has shown that design of, for instance, furniture has a way of affecting the children's learning process and development.Aims: The purpose of this study is to see how two different teams of preschool educators on two differed Reggio Emilia inspired preschools work and handle the physical indoor environment. Method: We started out by contacting Reggio Emilia inspired preschools.

Introduction: The health for individuals with intellectual disabilities is asubject that is prioritized by the Swedish Institute for Public Health. Socialsupport has been proven to be important for health and quality of life. Despitethis fact there is no research available regarding the influence social support hason health and quality of life for people with intellectual disabilities in Sweden.Aim: To describe social support and the consequence of social support forhealth and quality of life for individuals with intellectual disabilities. Method:A litterature review of research in a defined area with a descriptive design.Systematic searches for articles were done in several databases and ultimately16 articles were chosen. Themes and categories were created with respect to theaim of this study during the analysis of the articles.

This hermeneutic case study examines how and why an insurance company?s output has been affected by a CEO-succession. The authors pay specific attention to three activities; changes in personnel and organization structure, handling of media and change in customer focus. It is shown that the CEO was able to influence the company?s activities and this discretion was primarily created through her relational capacity.

This hermeneutic case study examines how and why an insurance company?s output has been affected by a CEO-succession. The authors pay specific attention to three activities; changes in personnel and organization structure, handling of media and change in customer focus. It is shown that the CEO was able to influence the company?s activities and this discretion was primarily created through her relational capacity.

AimThe aim of the study is to gain insight into how physical education teachers reflect on peerassessment in Physical Education (PE). The study was limited to investigate teachers? conception of peer assessment. The study also examines whether teachers can describe anymethods of peer assessment that they use or have used in their teaching, and what strategic choices they talk about when they describe their methods.MethodQualitative interviews were used to collect data. The interviews can be referred to as in-depthinterviews with a particular focus on concepts.

Syftet med studien var att undersöka den fysiska aktivitetsnivån hos de anställda samt ta reda på vilka motivationsfaktorer och barriärer de upplevde till fysisk aktivitet. Syftet innefattade även att se om motiv och barriärer skiljde sig beroende på aktivitetsnivå, ålder och kön. En del av syftet var även att undersöka hur aktiviteten kring företagets erbjudande till fysisk aktivitet såg ut. Undersökningen genomfördes genom att deltagarna (n=139) besvarade en omarbetad form av Motivation Till Upprätthållande Av Motionsvanor (MTUAM), en svensk version av Physical Activity Stages Of Change samt några bakgrundsfrågor. Resultatet visade att 55 procent var tillräckligt fysiskt aktiva enligt Folkhälsoinstitutets rekommendationer.

The members of the OECD have agreed on giving aid assistance to developingcountries in a way of promoting their own capacity of handling the challengeof poverty and development. The members also cooperate and coordinate theiraid to recipient countries in the purpose of giving as effective assistance aspossible. The aid from these countries is often intended to human rights,democracy and has a humanitarian idea. This is the way from the OECDcountries. The Chinese way of giving aid mostly aimed at the industry of therecipient to promote the economic growth to lift the country out of poverty.The Chinese way do not aim or intend their aid at promoting human rights ordemocracy, often just industry and infrastructure.

This thesis is focused on what impact stall confinement has on a horse?s mental and physical welfare. It was of great interest to get a gathered picture of how Swedish horseowners had experienced having their horses in stall confinement. A survey study was conducted to achieve this. The survey included twelve questions which for example investigated the horses? age at the time of stall confinement, the length of stall confinement and their sexes.

In this study our aim is to display a series of possible mechanisms which operateswithin the regions and societies were child soldiers were frequently andextensively used in combat tasks. Our study is based on the assumption thattoday's peace-building strategies are inadequate to describe certain problemsfaced by many post-conflict countries, especially in Africa. We argue that largeformations of child soldiers will, if not properly and immediately addressed, causeserve and structural problems in society, gravely hampering growth andinstitutional capacity. The Issues of Post Traumatic Stress and societal insecuritybrought on by the use of child soldiers poses a serious threat to society as a whole.In this study we use Uganda as an illustrative case to describe the mechanisms atwork..

SammanfattningSyfte och frågeställningarSyftet med den här studien är att undersöka vad lärare har för tankar om hälsa och hur deras tankar påverkar undervisningen inom ämnet idrott och hälsa.  De huvudfrågorna som har ställts i den här studien var: Vad är lärarnas tankar om hälsa? Vad lär idrottslärarna ut om hälsa under idrott och hälsa lektionerna? På vilka sätt görs hälsoundervisningen meningsfull inom idrottsämnet? Hur kan idrottslärare utveckla området hälsa inom idrottsämnet i skolan? MetodAnsatsen är den kvalitativa där det utvalda verktyget är intervju med öppna frågor. Utöver de huvudfrågorna skapades det underfrågor för att föra diskussionen.  Lärare som är yrkeserfarna och utbildade inom idrottsämnet hade eftersökts.  Dessa egenskaper var ett krav eftersom frågeställningarna berör hälsa inom ämnet idrott och hälsa. Intervjuerna utfördes antingen på plats eller via telefon och intervjufrågorna skickades i förväg.  Samtalen spelades in och transkriberades elektroniskt.  Alla lärarnas svar samlades under respektive fråga för att underlätta analysen.  Svaren relaterades till den salutogena modellen.ResultatSex tillfrågade lärare från Stor-Stockholm och sydöstra Sverige deltog. Idrottslärares tankar om hälsa handlade generellt om att ha en fysisk och psykisk hälsa så att man orkar med sin vardag mentalt.

Why has some cyber-attacks been more successful than others? There has been in the near past examples of cyber-attacks used with different purposes. How do we understand these chosen targets and what result the attack accomplished?Research has discussed similarities between aviation warfare and cyber warfare, and how the first could explain what is happening in cyber warfare now. There is also opposing opinions whether cyber warfare should be seen as a method to alone force a will on your opponent or if cyber warfare should mere be supporting other military means.

The purpose of this study is to create a deeper understanding of how Swedish universities work with their marketing communication aimed at potential domestic students. The study focuses on how universities design and select channels for the marketing communication. A case study was conducted where four respondents from two Swedish universities were interviewed in order to generate empirical data. The results show that key factors for marketing communication are uniformity, honesty and trustworthiness. The results suggest that marketing communication should focus on the student?s experiences of university life and being a student, rather than marketing the university?s core service: education.