During the 1930´s the hot potato for the Swedish lighting associations were how to create the most suitable light for every situation, either for industries, offices or homes. The light bulb were the most frequently used source of light but due to limitied luminous intensity, big halls sometimes required up to hundreds of light bulbs to produce the right amount of light. Two kinds of different lights, by different reasons, can be titled the predecessors of the fluorescent lighting during the 1930´s: The volfram-filament tube light due to its estetic similarities and the electric discharge (mercury- and sodium-) lamps due to its technical resemblance. Even though they came in quite wide use (the volfram tube in public halls (e. g.

As part of an Agile developing team I have in my role as interaction designer also tried to evaluate the ?iPhone Human Interface Guidelines?. With action research I have taken actions to change the workflow and to see what there can be done to make the guidelines more motivating to use. Action 1 tried to make the iPhone components more available and it suceeded, action 2 tried to make the guideline more available in whole and did not work as it was designed to do. The guidelines did not work as a source of inspiriation and I and my fellow designer distanciated us from it.

The aim of this thesis project is to produce an algorithm for finding a topologicalrepresentation of a polygon, called a straight skeleton, using floating pointarithmetic. Various straight skeleton algorithms are examined and discussed witha focus on time complexity and one is chosen for implementation. This implementationis then compared with the open source library CGAL with regards torunning time. The result is an algorithm which is based on an algorithm by Felkeland Obdrzalek and which, for polygons with more than five thousand vertices andthree significant digits representing points, runs around 25% faster than CGALsimplementation. Complications regarding the use of floating-point arithmetic arealso discussed..

The purpose of the house which is the basis of this report is to be able present itself on the market as a relatively cheap and at the same time a climate friendly choice. The house is supposed to be able to be built anywhere in Sweden and the rest of Scandinavia in a short period of time. This puts demand on what kind of heating system the house can have, since not all places have the geographic advantage of being able to use geothermal or district heating. Therefore the heating system choices will only include those that are not limited by their geographic location. The house will be built in modules which only require the groundwork to be done before the house can be erected. In this report "System solutions for plus or passive-housing" a comprehensive literature search has been conducted as well as a number of calculations.

The background of this research is that Swedish food products have hard to compete at the home market, depending on imported food products that increase more and more for every year that pass by. The ethic values LRF associate with Swedish food products, many customers have hard to put in relation with condition of foreign agriculture. Most customers today inquire high quality, safety and convenience in the food which they are eating. The source of their food seems to have less meaning. Many restaurants and bigger households appreciate Swedish food products and wants to buy them but price differences against foreign wares are to high. We have done oral interviews with wholesale dealers, restaurants, public purchasers and with different market organisations, there we have discussed buying strategies, the way they see the primary producer, the conscious of guests, choice and attitudes to Swedish and foreign products, distribution of power in the food market chain and to what position and suspension, they want the ranks of suppliers to have. The result shows the share of imported wares within restaurants and bigger households are at a high level and will continuing increasing. Within these sectors the final consumer in many cases put less effort in the origin of the raw source of food.

This bachelor thesis is written as a part of the geography program at Stockholm University, Sweden, and the study was conducted from April to June 2012.Tuberculosis (TB) is an airborne disease and one of the most widespread infectious diseases in the world with more than nine million new cases each year (SMI 2012, digital source). The disease is a major source of death and suffering in many places and the number of deaths remains high despite the availability of highly efficacious treatment. To control and prevent further spread of TB, the mapping of the disease spatial distribution is of essential importance.In this study, maps were produced that shows the spatial distribution of TB between the years 2002 to 2011 in the municipality of Stockholm. These maps allow an analysis of the spatial distribution at a local scale over time.The aim of this paper is to study how the spatial distribution of TB has looked like in the municipality of Stockholm the last 10 years and to analyze why the spatial distribution of the disease looked like it did. This study is based on the hypothesis ?drift?.

The most common way to treat wastewater in Sweden today is by a combination of an activated sludge process and a chemical treatment. These processes are not very energy efficient and may not be the most environmentally friendly. That is why it is interesting to evaluate new alternative methods to see if they can be less harmful to the environment and help to a lower resource consumption. New techniques are tested in a pilot installation at Hammarby Sjöstad, Sjöstadsverket. To be able to evaluate these techniques in a wide perspective system analyses are conducted where different impacts can be considered, advantages and disadvantages in the systems.Five system structures for water treatment have been constructed in Matlab/Simulink in this study.

The report contains a survey on telecommuting in nature and how concepts around that information could look like. The client for the project is Lars Sandberg, Dotank AB in Karlstad. The project is implemented in the course Bachelor of Science in Innovation and Design, MSCG22 of the faculty of health, science and technology at Karlstad University in the spring of 2014.Working flexibly and remotely in the so-called knowledge based professions is growing. That nature is an important source of recovery is a fact. The literature search in this report shows that there are factors that create both physical and psychological stress on most office workers while nature is a source of recovery and inspiration.

AbstractSurface-water includes different kinds of pollutants from traffic and roads. To prevent these pollutants to reach nearby lakes one can construct surface-water ponds on locations with heavy traffic. At Bergviks shopping centre in Karlstad, two ponds, one smaller and one bigger has been constructed in order to decrease the pollutant pressure from the receiving waters of Kattfjorden. Several heavy metals are essential for plants and animals in low concentration but when they occur in higher concentrations, they become toxic to the organism. The larger pond at Bergviks shopping centre has a sedimentation function so the heavy metals sink to the bottom thereby not releasing directly in to Kattfjorden.

In the low-income countries of the world, rapid urbanization and decaying infrastructure results in an increasingly unsustainable situation when it comes to solid waste management. Often, the solution tends to focus on introducing technical advanced interventions based on the conditions of the high-income world. However, this thesis aims to ?nd site-speci?c solutions on solid waste management at a local scale. By taking in consideration of local conditions a customized approach is possible where the solution is not dependent on expensive structural changes.

Title: A hosting service for software development projects that use the Git revision control system. To learn using tools to make software development more effective should be self-evident at a high level institution as the competitive industry races on. The absence of directives for programming students in Sweden to use source code management (SCM) was the basis for this report. The report describing the developing of a hosting service for software development to use SCM of Git, which includes a web application, storage, API and authentication of students. The project resulted in a hosting service and a smaller survey of how the today Swedish students using habits of SCM during their studies..

Det är viktigt att se hälsa ur ett helhetsperspektiv där den sociala, fysiska samt psykiska hälsan ingår. Människan tillbringar en stor del av sitt liv på arbetsplatsen, det är därför en viktig arena att arbeta hälsofrämjande med. Hälsofrämjande sjukhus är ett exempel på en sådan arena. För hälsofrämjande sjukhus är det bland annat viktigt att främja den egna personalens hälsoutveckling i en positiv riktning, med hjälp av en aktiv kunskapsförmedling. På arbetsplatsen är det viktigt med nyckelpersoner som kan förmedla kunskap om hälsans villkor till övriga anställda.

A home for elderly is planed to be built at Zakrisdal, Karlstad, Sweden. The heat source for the building was at the time not determined. In order by the local government of Karlstad this report is meant to examine if the need of heat could be provided only by solar heat combined with a seasonal heat storage. The problem to solve is, if the need of heat from the home for elderly is provided from only solar heat, whitch dimensions of the solar collectors and the storage is needed?.

Denna rapport är en undersökning om hur man gör en bana i ett FPS-spel så att banan blirintressant och rolig så att så många spelare som möjligt vill spela den. För att komma framtill det har jag skapat en bana i Hammer till spelet Team Fortress 2 för att göra vissa testerpå den för att därigenom komma fram till mitt resultat.Slutligen kom jag fram till att det viktigaste när man skapar en bana är variation och att hamed något som passar alla. Dessutom kan det ha en viss vikt hur banan ser ut annarskommer folk inte ens testa banan..

Det är viktigt att se hälsa ur ett helhetsperspektiv där den sociala, fysiska samt psykiska hälsan ingår. Människan tillbringar en stor del av sitt liv på arbetsplatsen, det är därför en viktig arena att arbeta hälsofrämjande med. Hälsofrämjande sjukhus är ett exempel på en sådan arena. För hälsofrämjande sjukhus är det bland annat viktigt att främja den egna personalens hälsoutveckling i en positiv riktning, med hjälp av en aktiv kunskapsförmedling. På arbetsplatsen är det viktigt med nyckelpersoner som kan förmedla kunskap om hälsans villkor till övriga anställda.