In many European countries there is an increasing concern about the occasionally high concentrations of nitrate and pesticides in drinking water. The advent of the EU Water Framework Directive particularly highlights this. The directive states that all large drinking water sources should be identified and protected from pollution before 2009 and that by 2015 all water bodies should reach a 'good status'. In Sweden about 60 percent of the drinking water sources have protection areas. This means that about 700 new water protection areas need to be designated before 2009. This will affect many farmers, restricting their farming practices. The purpose of this study was to investigate which methods are used in other countries concerning nitrate and pesticide pollution from agriculture. From this, the expectation was to generate ideas on what could be undertaken in Sweden when designating new protection areas.

Hammarby Sjöstad is a new district in southern Stockholm. A main objective with the Sjöstad project was to halve the environmental impact compared to other construction work. The environmental goals involve a halved water consumption rate, a local treatment of storm water and trials aiming to extract nutrients from the waste water. Sjöstadsverket is an experimental treatment plant used for testing new treatment processes for domestic waste water from Hammarby Sjöstad. The results are to be compared with the conventional process used at Henrikdals treatment plant today.

This report shows a qualitative study on how six young adults in the ages between 20-30 who are students at Linnaeus University in Kalmar percieve their news consumption habits and their use of news media on digital platforms. The aim of the study is to examine whether the six students feel the strogest connection with the press where they were raised or where they currently live, why they choose to use the media platforms they do and what meaning the use of the media bare to the students. We have seen a lack of information concerning why young people choose to consume news online instead of in printed media.The study is focused on theories concerning what affects people in their choice of media platforms and channels. This report shows that geographic nature, the quality of the content and which political ideology the daily press is founded on does not affect the respondents choice of media. Our study shows that the most important factor for the respondents is that the platform is easily accesssible and flexible.

Tidigare forskning visar att mammografiscreeningar bidragit till en ökad överlevnad i bröstcancer tack vare tidigt upptäckt av sjukdomen. Dock fanns det ett område inom vilket mammografi hade begränsad diagnostisk förmåga. Det var körtelrik bröstvävnad där cancer kunde döljas för bildgranskade radiologer. Syftet med denna litteraturöversikt var att undersöka om digital brösttomosyntes kan förbättra detektion/sensitiviteten för bröstcancer, särskilt i täta bröst, och på så sätt bidra till att minska antalet intervallcancrar. Som metod valdes att göra en evidensbaserad litteraturöversikt grundad på kvantitativa studier.

The aim of this Masters thesis is to examine the user service discourses in the field of public libraries that can be identified in four Swedish library journals. Also which underlying causes that control the discourses and the consequences of them are examined. Questions in this study are: which discourses can be found, what characterises them, what kind of different discourses concerning technology in society control the user service discourses and what are the consequences of them. The theoretical starting-point is Ernesto Laclaus and Chantal Mouffes discourse theory. The method is text analytic.

This study is based on AgroSeas business idea from environmental problems to valuable resource, with the objective to optimize a method to purify the already eutrophicated Baltic Sea by harvesting water plants, mainly reed. The nutrients will then be recirculated to arable land through residues from biogas production. The amount of nutrients that can be removed by harvesting the biomass depends on the amounts of biomass and the nutrient content of it, which in turn is strongly dependent on the nutrient concentration of the surrounding water. Vegetation suggested in the study for an effective nutrient uptake is helophytes: reed, cattails, reed canary grass, reed sweet grass in shallower water and lemnoideaes: duckweed and nymphaeids in the deeper parts. Competitive species has high purification ability but requires regular maintenance to avoid channeling and overgrowth. Regarding time and method of harvest, effectiveness may be improved by: harvesting plants above the water level and after flowering, a border is kept, harvesting twice a season, a bigger machine and a regular maintenance. This literature has illuminated a major environmental problem and it has been suggested optimizations for a method for cleaning the Baltic Sea through harvesting water plants, but to get a definite answer for the optimal method for each site tests should be carried out, this because many factors determine to what is suitable for each, specific environment. .

The thesis aims to be an informative study for landscape architects and hopes to contributeto an understanding of ways water can be used and managed at sites lacking open, greensurfaces.The title "intelligent water design" should evoke the reader?s thoughts concerning intelligentaspects of water. Text, images and the design proposition give hints about these aspects.In the first part of this thesis, various examples of water design are presented. The chosenexamples are all applicable in urban environments with a high percentage of impervioussurfaces.The second part examines Gjutarplan, an urban square in the centre of Kallhäll, in Järfälla,north of Stockholm. Gjutarplan is first framed in a geographical and historical context.

During test flights SAAB uses the data acquisition system COMET 16. The part of the system that receives the signals from the sensors and converts them is called KSM 15. The purpose of this thesis is to develop a data acquisition module on stacked PC/104 modules with a lower production cost. Our work has been divided into one part about analog signal conditioning and a second part with digital filtering and memory management of the sampled data. The analog part, designed of regular components like instrument amplifiers, voltage references, operational amplifiers and multiplexers, adjusts the sensors signal levels for the ADC?s that converts the signals.

This report was performed in order to evaluate a new technological measure and focuses generally on a heat pump system to a HWC-washing machine. The client is Asko Appliances AB, a company well known for its environmentally friendly products. The goal of this study was to improve the energy efficiency of a washing machine by combining a heat pump device to the heater of the wash water, in order to reduce the energy consumed for heating the water. Besides reducing the energy consumption in heating the water, the washing machine was required to meet low noise and short operating time specifications. For that purpose, nine trials in three test series have been carried out.

The purpose of this thesis was to examine if users of digital music games may acquire skills from the games that may be of use in learning to play a real instrument, that is a non-digitally simulated instrument like an acoustic piano. We have used Gee?s theory regarding a possible interconnection between different semiotic domains, and how this connection may enable a transfer of skills between related domains. In this thesis we examine possible skill transfer between the domains ?digital games? and ?non-digital instruments?. To examine our question formulation we chose to conduct a pilot study from which we collected both quantitative and qualitative data.

The aim of this master thesis is to examine the attitudes among library staff regarding a music downloading service called Musikwebb, which is available in many Swedish public libraries. It focuses on the impact of Musikwebb on the process of music selection, the relationship between Musikwebb and the digital development in public libraries and what service Musikwebb offers its users. The gathering of material was executed through focus group interviews with library staff in four libraries. This empirical material we divided in three categories: Music selection, The Library and its digital services, and Library services. We use the results of Sanna Talja?s discourse analysis regarding the relationship between Music, Culture and the Library to analyze our material.

The use of information technology (IT) is exploding. Today, it is in our daily routines to use some kind of information technology. The increase of users increases the number of cyber crimes, ie, crimes that in some way involve IT. As the cyber crimes grow in numbers, the workload for technical investigator increases, these are called digital crime investigators. The thesis is about how police digital crime investigators work and what problems they may encounter during an investigation.

Uppsatsen centrerades kring ett accelererande problem- med konsekvenser även för skolan - nämligen de digitala kränkningarna. Syftet med själva projektet är att primärt belysa hur skolledning och skolpersonal dels uppfattar och dels hanterar möjliga digitala kränkningar, oavsett var och hur dessa kränkningar framförs.Uppsatsen bygger på intervjuer med nyckelinformanter i skolorganisationen i en kommun, från politisk nivå till verkställande nivå i form av rektorer m fl. Dessa intervjuer speglas mot svar från Skolverket, barnombudsmannen m fl. Intervjuerna - med nyckelinformanter ? visade på vissa svårigheter med detta problemområde.

Denna studie handlar om pojkars beskrivningar av att använda digitala spel och hur detta kan bidra till språklig kunskapsutveckling i skolans verksamhet. För att få studiens frågeställningar besvarade har intervjuer med fem pojkar i tio års ålder analyserats med utgångspunkt i socialsemiotiska teorier och begrepp. Pojkarnas beskrivningar visar tecken på att digitala spel kan användas som en resurs i utveckling av barns verbala och skriftligt språk. Pojkarna beskriver att utvecklingen av språklig och verbal kunskap kan äga rum dels individuellt och dels i grupp genom att använda digitala spel. Resultatet visar även att skolans verksamhet inte har erbjudit pojkarna möjlighet att använda digitala spel för att utveckla sina språkliga kunskaper..

The distance between home and work has increased in recent decades. By the development of infrastructure and public transport, jobs farther from home have become more accessible and this development has in turn increased commuting. Commuting travellers often pass over administrative boundaries which often serve as borders for public transport pricing. Also the market control prices. Research shows that travel times and costs significantly affect commuting choice.