This report documents the process of designing a laboratory exercise in Fourier analysis at Vetenskapens Hus (House of Science) in Stockholm. The lab is designed for high school students studying science or technical education. It focuses on the physicalunderstanding and mathematical description of sound, in particular music. A model of such a lab is presented in this work; containing a review of the mathematical theory, summary of educational research in the field, descriptions of the design process and of the investigativework that led to the final result. The designed material for the lab includes developed computer programs, visit leader tutorial and description for teachers. .

Background: Since1994, the EU NickelDirective is limiting the release of nickel from objects that are in prolongedcontact with skin. Despite this, nickel is still the most common cause of contactallergy in industrialized countries. This could implicate that other productswith short contact to the skin, which are not restricted by EU´s legislation inREACH (Registration, Evaluation, Authorisation and Restriction of Chemicalsubstances), could be a source of nickel or cobalt exposure. There is no limitfor cobalt release within REACH. To determine if there is cobalt or nickelpresent on the surface of a material and if metal can be released in contactwith the skin, there are quantitative and qualitative methods, such as the DMG(dimethylglyoxime)-test, the cobalt spot-test and a method for releasedetermination according to EN1811.Objectives: Laptops are not included in the REACH legislation.

The purpose of this paper is to describe methods to computerize a library and to compare theory with a process in a school library. The case study is based on a school library called Sunnerbogymnasiet which is situated in Ljungby. My questions are;- Which methods are parts of the process to computerize a library?- Which methods are used in the process in Sunnerbogymnasiet?- What does the practical process look like compared to the methods described in theory?In the paper I present the methods in the process according to the studied literature and compare these with a process at Sunnerbogymnasiet. The most significant result is that cooperation between the school library and the community library was the most important reason for the choice of library computer system.

I detta arbete redog?r f?rfattaren f?r en del av spelmusikens historia, vilka influenser och tekniska begr?nsningar som lett till att bit-musik, med fokus p? 8-bitars musik och med inslag av 16-bitars musik, l?ter som den g?r, samt g?r en analys av 8-bitars musik p? bakgrund av musikteori, musikpsykologi och kompositionsmetod. F?rfattaren diskuterar ?ven begr?nsningar utifr?n ett historiskt perspektiv, och redog?r f?r uppkomsten av kompositionsmetoder som anv?nts genom ?rhundradena, fr?n Bach till 1980-talets 8-bitars komposit?rer. F?rfattaren kommer fram till att det g?r att applicera samma kompositionsmetoder i 1980-talets spelmusikkontext som under exempelvis barocken, och att analysera klassisk musikteori ?r anv?ndbart f?r att f?rst? och skriva 8-bitars musik.

This work is an experimental study where knock sensor placements are investigated using engine tests. The aim is to studythe quality of the signal from knock sensors and how the signal for engine control is affected at different sensor locations on Scanias, engine DC13. To find out at witch position on the engine youcan get a usable signal for engine control, the engine is running while the knock sensors with advanced measurement equipment is connected to the engine. Evaluation of signals from the knock sensors are made in the computer program Matlab. The program is producing a seriesof plots, from these plots it is visually possible to draw conclusions and find connections.

Texo Application has created robots that they call for satellites; with these you can feed in storage pallets into a satellite storage. Satellite storages consist of channels in height (e.g.3 to 8 pieces) and width (e.g.3 to 100 pieces). Channels can be different long (e.g. 5 to 200 pallets). At deposit of a storage pallet the truck insert the satellite in a channel and then the pallet, the pallet is driven into the channel until it reaches another pallet or the other end.

I denna studie är syftet att belysa vilka effekter som underhållningsspel kan ha på motivation och koncentration samt även undersöka om spel kan användas för att förbättra den kognitiva prestationen. Konkret ställs frågan vilka förändringar som sker i reaktion, korttidsminne och perception efter att ha spelat Gradius 3 samt vilka orsaker som ligger bakom dessa förändringar. Resultatet pekar entydigt mot att spelandet har en positiv effekt och förbättrar den kognitiva förmågan. Särskilt när det går bra i spelet och man får ett flow kan prestationen maximeras, vilket överensstämmer med Csíkszentmihályis flowteori. Det flow som uppstår i spelet ger en euforisk känsla av tillfredsställelse som stimulerar motivation och koncentration, vilka båda är förutsättningar för bättre prestation.

This thesis investigates how different Linux-distributions installation interface relate to the ISO 9241 standard, parts 12 and 13, and how they relate to the installation interface of Windows XP, with the hypothesis: "There is a Linux-distribution whose installation interface according to applicable HCIrecommendations is equivalent to that of Windows XP." With the checklists provided by ISO 9241 an empirical study has been made, and so comparable measurements of how well the Linux-distributions and Windows XP follows the recommendations of the standard was obtained. By comparing the results from the tests similarities and differences between the installation interfaces can be deducted. As the result and the conclusion shows there are Linux-distributions whose installation interface, according to the applicable HCI-recommendations, are equivalent to that of Windows XP..

Uppsatsens syfte a?r dels att identifiera konsumenternas e-handelspreferenser men a?ven att ta reda pa? eventuella skillnader ga?llande anva?ndarpreferenser via smartphone respektive persondator. Uppsatsen identifierar e-handel som ett fenomen som blir allt starkare och som a?r pa? va?g att konkurrera ut den traditionella detaljhandeln. Fo?r att kunna svara pa? va?r problemformulering tar vi hja?lp av olika metoder. Utifra?n va?ra underso?kningar tillsammans med va?ra utvalda metoder har vi kommit fram till att konsumenterna hellre sitter vid en persondator vid konsumtion av en vara.

Tjejer å Tjejer är en dokumentär med ungdomar i åldern 14-17 år som målgrupp. Produktionen har gjorts i samarbete med SVT, Sveriges Television, Växjö. Med filmen vill vi visa unga homosexuella tjejer, eller som de medverkande benämner det flator. Vi vill visa dessa i sina sociala sammanhang. Att vara lesbisk och ung betyder inte att man måste leva annorlunda. För att finna våra karaktärer sökte vi i hela södra Sverige.

Master thesis studying the use of multimedia on CD-ROM in a library setting by analysis ofqualitative interviews with nineteen persons.The thesis relates the study to some relevant issues in human-computer interface (HCI) researchand to the commercial market for multimedia CD-ROM products. Three main types ofuse were described by the persons interviewed: recreational, information seeking and usingmultimedia to learn more about using computers. Children and young people interviewed mademost use of the multimedia provided, whereas adults thought it to be less valuable as a sourceof knowledge for them personally.HCI research shows various results of using multimedia for educational purposes. Thecommercial market is dominated by American products which can have a negative effect onthe use of multimedia in Swedish public libraries..

This study aims to investigate how and why teachers use social media to reach their students, and how they handle different levels of computer literacy among students.The purpose of this study is to investigate the experience of teachers using social media in their teaching. I have done interviews with two teachers, who use social media in different ways. One of the teachers makes her students publish their work on the Internet on wiki-spaces, and the other one use Facebook for discussions and teamwork. This report uses the pedagogy theories laid forth by Vygotskij as a vantage point to analyze the answers from the teachers. I have also looked at some of the published student texts on the Internet.This study concludes there are students who don?t have access to computers and Internet at home.

When communications traffic increasingly turned into data, IP telephony became a disruptive technology for the telecommunication business. IP telephony was a hot topic when voice over IP services started to become available to consumers in the 1990s. The new technology changed the rules of the game and many new actors entered the market.The purpose of this study is to describe, study, and analyze how the business models of the Swedish telecom sector developed in the middle of the 2000s. The study is delimited to the Swedish consumer market for telephony.The study is built mainly upon deep interviews with 24 prominent persons in the telecom sector in 2006. To aid understanding, two telecom companies that have been chosen to represent different kinds of actors are described and analyzed more closely.

Uppsatsen handlar om retoriken i tv-spel. I tv-spelsforskningen pågår en debatt mellan ludologin och narratologin där ludologin menar att spel ska ses som spel och inget annat ? exempelvis som en fotbollsmatch där spelet självt är det huvudsakliga innehållet och där ingen frågar efter ytterligare mening. Narratologin menar att spel i grunden är berättande eller bär på berättande drag ? att en fotbollsmatch följer en överskådlig dramaturgi och berättande mönster.

The study was performed for the Swedish Regional Forestry Board in Södra Götaland. The study examines broadleaf plantations on former farmland that were planted between 1991 and 1996 with subsidy payments for conversion of farmland into forest. In particular, the study reviews forests planted in 1991-92 and 1994-96. In the early 1990s, Swedish agriculture was deregulated and direct subsides to farmers ended. The Swedish state instead granted farmers financial support and offered incentives for conversion of farmland and investments in order to make their unproductive land productive. The state supported conversion of farmland to broadleaf forest, forest for energy biomass production, or establishment of wetlands on former farmland. The County Administrative Boards and Regional Forestry Boards together monitored the planting of broadleaf forests.