Teknikens utveckling går i en rasande fart och idag kan man köpa en avancerad obemannad luftfarkost i butik. De obemannade luftfarkosterna kallas för multirotorfarkoster, eller i folkmun för drönare. Dessa multirotorfarkoster kan leverera en dödlig last med stor precision av någon utan större tekniskt kunnande. I stadsmiljö vid stora folkansamlingar skulle det idag vara svårt att stoppa en sådan inkommande attack utan att riskera ytterligare skador. Det här arbetet går ut på att belysa problemet och studera tekniken.

Vi lever i ett alltmer datoriserat samhälle där information och funktionella informationssystem är av största vikt. Detta gör att det är en stor efterfrågan på systemutvecklare och vår nyfikenhet i frågan har väckts genom att vi kände att vår utbildning inte passade in i den yrkesprofil som efterfrågas. Vi hade en känsla av att det finns olika synsätt på systemutveckling och därför gjorde vi denna undersökning. I uppsatsen har vi undersökt samtliga kandidatutbildningar som utbildar inom systemutveckling samt gjort en fördjupning inom informatikområdet för att se vad det är man utbildar inom. Vi har funnit att det finns två olika synsätt där ett är tekniskt inriktat och ett är mer verksamhetsorienterat.

The limit for mercury in fish, set by health authorities, is exceeded in about half of the lakes in Sweden. Methyl mercury (MeHg) is the most toxic form of mercury and accumulates in fish. Therefore transformation of inorganic mercury (Hg) to methylmercury (MeHg) is an important process that we need to understand in order to possibly counteract the negative effects of mercury in the environment. The seasonal dynamics of mercury biogeochemistry is likely of great importance for the accumulation of MeHg in the aquatic food web. In thesis the chemical speciation and transformations of Hg and MeHg in bottom waters and sediments is followed in Ängessjön, a small lake located on the east coast in the middle of Sweden. The lake is not directly affected by any industrial pollution and concentrations of Hg in the sediment reflect the atmospheric deposition in this area, as well as processes taking place along the hydrological pathways from soil to lake. Samples from sediment, bottom- and streamwater were collected in average every second month during the period Feb.

Project Safe Sleeping Position (SSP) contains all parts in a product development phase. The project comprises the whole cycle from idea to a complete product where all aspects are included. The scope is to develop an innovative solution for a common known problem and work with all parts within the man-machine-way. The result is an inflatable product which secures a child in the correct way for the seatbelt to work properly in the rearseat of a car. Ergonomics, technical extent, usability, design, construction, product solutions and market potential are some of all parts witch the project includes.

Do new, attractive neighborhoods meet the requirements of being socially sustainable? This essay is based on the potential conflicts between the pursuit of social sustainability, while the theory of the creative class influence city planning. Social sustainability is difficult to measure, but implies broadly that everyone should have equal rights and opportunities. A city or region that aims to attract a certain type of people by providing what they ask for, might pay less attention and spend less resources on the rest of the population. Socially sustainable - for whom? The new district Hyllie in southern Malmö stands in focus, and the paper seeks to identify how different operators in Malmö defines the concept of social sustainability, how it is implemented in the design of Hyllie, and if any potential conflicts may arise.Interviews with the following informants; representants from the Office for City Planning in Malmö, the nonprofit organization Sustainable Development Skåne, the Commission for a Socially Sustainable Malmö and the company Skanska Öresund have constituted the main methodology, among with reading and analyzing existing documents and policies relating to the development of Hyllie.

The focus of this thesis is on what is considered to be a suitable foster home. For the study to be carried out an application had to be made to get access to the foster home assessments in a medium-sized municipality in Sweden. With the support of attachment theory and theory of standards different categories have been picked out and analyzed in foster home assessements that have been approved. The conclusion to what is considered to be a suitable foster home is a complex issue, as there are many factors that are interacting. Social workers seem to focus on the importance of a family?s ability to provide some kind of stability and security for a child who is considered to be placed within their home.

Previous studies of central tire inflation (CTI) in truck transport of roundwood have shown potential benefits to include more even wood flow and reduced road damage. The greatest benefits are found to be during periods of low bearing capacity such as spring thaw. No previous studies have examined geographical variations in the potential benefit of CTI-equipped trucks. The aim of the study was to develop and use a simple method for geographically prioritizing the use of CTI-equipped trucks within a forest company´s sector of activity.The host company for the study was Holmen Skog. The area studied consisted of Holmen Skog?s entire sector of activity extending from the province of Västerbotten to the province of Småland.

Den här uppsatsen undersöker kompositionsprocessen av ett 48 minuter långt sammanhängande verk med en genrebred ensemble. Upphovspersonen avsåg att skapa en stilistiskt fungerande helhet där sex klassiska musiker, fyra jazzmusiker och åtta sångare samverkar med en förprogrammerad elektroakustisk stämma i surround. Även den elektroakustiska stämmans tillkomstprocess redogörs för, liksom de olika lösningar som behövdes för att, både musikaliskt och tekniskt, passa ihop den med ensemblen. Frågan om synkronisering mellan ensemblen och den elektroakustiska stämman tas upp, liksom lösningar av balansproblem. Valet att inte förstärka instrumenten elektriskt medförde ett stort ansvar hos upphovspersonen att instrumentera musiken omsorgsfullt och justera såväl rummet som vissa instrument.

Den största enskilda verktygskostnaden för tillverkning av varmvalsade band är kostnaden för valsar. Valsarna slits under valsningsprocessen och måste med jämna mellanrum slipas för att tillfredställande produktegenskaper skall innehållas. Livslängden för en vals bestäms av dess belastning, geometri och materialegenskaper, när de inte uppfyller kravet på mått eller hållfasthet måste de skrotas och ersättas. Kostnaden för valsar liksom produktiviteten påverkas således av flera faktorer. Valsmaterial, tillverkningsteknik för valsar, valsslipmaskiner, mätmetoder liksom metoder att utnyttja valsarna utvecklas hela tiden.

The Swedish election year of 2010 has just begun and the political actors are mobilizing their communication efforts to win the votes of the public. The political campaigns of 2010 have the potential to be the first where a new channel for political communication has the potential to make a difference ? the social media. This paper aims to describe in what ways a Member of Parliament, Nina Larsson (FP), together with the PR-agency Hello Clarice are using social media to conduct political campaigning on the web. It also aims to study if the professional consultants of Hello Clarice have any influence over Nina Larsson?s political communication.The theoretical framework which is the base for this study are theories of an extended public sphere in the age of mediation.

The Internet provides the common user with a variety of both traditional and non-traditional news sources, and a vast range of possibilities to contribute to the flow of information. By their participation in the production of information ordinary citizens can sometimes function as non-traditional news sources them selves and reach a potentially unlimited audience. The interactive nature of the Internet blurs the line between producers and consumers, and challenges traditional definitions of what counts as "news" as well as who qualifies as a "journalist". The main purpose of this thesis is to examine the potential consequences of this decentralization regarding the information behaviour of newspaper journalists and their perception of their professional role. The study consists of qualitative interviews with six journalists, employed by four of the leading Swedish newspapers, and a review of earlier research in the field.

A positive aspect of globalization, from a western viewpoint, is the growing demand of advanced products in China and other developing countries. The construction industry is thriving in China and Swedish companies have taken part in various projects. However the situation have been difficult for some of the companies. The aim of this study is therefore to investigate how strategic and cultural factors affect the potential for Swedish companies to operate on the Chinese construction market. The theoretical framework of the study consists of Porter?s and Kotler?s theories about strategy, and Hofstede?s, Bjerke?s, and Daun?s research about different cultures.

Increased interest in nature tourism may be what saves small and dying villages, like Borgsjo? in the county of Va?sterbotten in northern Sweden, from disappearing. The nearly untouched nature in these areas is in many cases an unused resource, since true wildlife experiences are sought by many travelers. The purpose with this report is to investigate if Borgsjo? has the potential and abilities to become a destination for nature tourists, and how this should be done to avoid negative effects on nature, wildlife and culture.

Industries with energy costs as a large proportion of their total costs are greatly affected by the instruments deployed to cope with the Swedish climate and energy policy goals. With energy costs representing more than 30 % of the total costs, tomato cultivators are one of the affected industries. In order to remain competitive with other countries, a more resource- and cost-efficient cultivation of tomatoes in greenhouses is desirable in Sweden. Based on the concept of industrial symbiosis, this study investigates the prerequisites for a resource-efficient production of locally grown tomatoes in Sweden through the utilization of low grade industrial waste heat. The study is based on the foundry industry as the supplier of waste heat.To investigate the environmental, technical and economic potential of the exchange of waste heat, a comparative life cycle assessment, an inventory of the supply of industrial waste heat in Sweden, a compilation of potential technologies for the recovery of low grade industrial waste heat for heating greenhouses and a comparative life-cycle cost calculation were carried out.

I vårt examensarbete undersöker vi hur matematiklektioner ser ut med öppna uppgifter, vad matematiklärarna anser om öppna uppgifters potential för ett inkluderande klimat samt hur matematiklärarna arbetar med öppna uppgifter utifrån mål och syfte, planering och genomförande. Metoderna vi använder oss av är observationer av tre matematiklektioner med öppna uppgifter samt intervjuer med de tre matematiklärarna.Enligt matematiklärarna är alla elever med när de har öppna uppgifter i matematiken, men under observationerna och intervjuerna framkommer det att två av lärarna anser att elever med för få förkunskaper inte kan vara med. En lärare menar också att elever som behöver struktur hellre vill arbeta i en bok, istället för att vara med vid öppna uppgifter. Vi anser, att öppna uppgifter inkluderar fler än vad traditionell matematikundervisning gör. Eleverna arbetar aktivt med öppna uppgifter vilket kan medföra att ljudnivån höjs.Matematiklärarna planerar för att alla elever ska kunna vara med.