Denna studie har undersökt huruvida det är möjligt att på Nasdaq OMX Stockholm generera systematiska överavkastningar i samband med att aktier börjar handlas exklusive rätt till utdelningar. Samtliga utdelningstillfällen har undersökts under perioden 2007-2011 vilket givit en total observationsmängd på 699 stycken tillfällen. Genom att ha tagit hänsyn till eventuella marknadsfluktueringar och vikta dessa med bolagets unika risk, i form av betatal, har resultaten även justerats för normalavkastningar under den undersökta dagen. Resultaten från Large Cap, Mid Cap samt Small Cap har sedan jämförts. Resultaten visar att överavkastningar är möjliga under dagen då aktien slutar handlas inklusive utdelning, samt att effekten är större för de mindre bolagen..

Buildings today are built to maintain a healthy indoor environment and an efficient energy usage which is probably why damages caused by dampness has increased since the 1960?s.A study between year 2008 and 2010 showed that 26 percent of the 110 000 examined houses had damages and flaws caused by dampness that could prove to be harmful later on. This means that one out of four bathrooms risk the chance to develop damages by dampness. Approximately 2 percent of the houses had already developed water damages. It is here where the problems appear.

This thesis investigates techniques for stealth hydroacoustic communication using spread spectrum. The Swedish naval defense organisations have a vision that all their units should be able to communicate with each other, even between underwater vehicles. But the properties of water makes it a complex channel to use for wireless communications. Radiomagnetic waves have very limited range in water, therefore acoustic waves are used. In this report the basics of wireless communication systems are described including source coding, channel coding, modulation techniques as well as different techniques for spread spectrum.

Den kontinuerliga samhällssträvan mot en mer hållbar utveckling är en av de svårasteutmaningarna som människan har bemött under modern tid. Dess innebörd medför att våralevnadsvanor på alla plan måste anpassa sig efter de nya förutsättningarna som vi förr ellersenare måste bemöta. Inom infrastrukturella termer medför detta en allt mer pressad situationför både transport, logistik, kommunikation och trafiksektorn. Även den levande stadenutsätts för hårda påfrestningar där stadsutvecklingen måste ske i samklang med den hållbarautvecklingen. För att nämna några konkreta exempel är Stockholms region en av tusentalsandra storstadsregioner i världen som ämnar till att utvecklas till en storstadsmetropol ochalltid sträva mot att vara konkurrenskraftig från alla perspektiv gentemot andra storstäder.

Freshwater environments are threatened worldwide, of which many of the species associatedwith freshwater. In 2014, 243 freshwater mussels were on the international Red List. One ofthem is the freshwater pearl mussel, Margaritifera margaritifera, which because of itscomplex life cycle can be counted as an indicator of whether a stream is worth protecting. It's since the early 1900's in decline throughout their range. Sweden is counted as a core area which is why we have not only a national but an international responsibility to conserve the species.

Jag var utbytesstudent i Tokyo, Japan under våren 2007. Där intresserade jag mig för de olika kläduttryck som ungdomarna använde sig av i stadsdelen Harajuku. När jag kom hem till Stockholm igen såg jag tydligt hur de Harajukuinspirerade stilarna hade växt fram här.Uppsatsen tar avstamp i Harajukus mode. Syftet är att undersöka hur det har förflyttats och utvecklats i Stockholm, vad har förändrats, förstärkts eller suddats ut och varför? Vad förändras i överföringen? Jag ställer följande frågor: Hur ser det Harajukuinspirerade modet ut bland unga i Stockholm? Hur ser det ut i jämförelse med de unga i Harajuku? På vilket sätt har modet förändrats och varför? Vad kan jag som bildpedagog erbjuda ungdomar för att de ska få utveckla sina intressen inom subkulturen? Hur kan jag skapa en miljö med verkstäder och utställningar som passar denna målgrupp? I mitt designpedagogiska projekt skapar jag en japansk subkulturfestival med verkstäder och fotoutställning på Lava på Kulturhuset den 24-25 november.

In this study the authors have explored the new phenomenon Web-TV and what attitude young adults in Stockholm have towards this media and the applied advertisement. Further the study includes search outs of other studies for the authors to draw parallels to compare their result to be able make conclusions. Finally, Web-TV is discussed how the commercial on Web-TV could be developed to be as responsive as possible regarding the consumers..

One of the environmental problems today in seas, lakes and streams is eutrophication. This is often caused by nutrients such as phosphorus (P) and nitrogen (N) that leak from agricultural areas. A measure to partly prevent the nutrient discharge is to construct or restore wetlands.In order to control the efficiency of nutrient reduction of existing wetlands in the county, the administrative board in Västra Götaland wants to find different criterias for reference wetlands. These reference wetlands should represent other wetlands and be used in future evaluations of reduction of nutrients and design of constructed wetlands. According to the administrative board in Västra Götaland the reference wetlands should have a catchment area of about 50 hectare consisting of at least 70 % arable land, to represent wetlands created to remove nutrients.

Sapa Heat Transfer is a company that produces aluminum heat-exchanger strips for the automotive industry. Sapa Heat Transfer wish to chart their emissions of carbon dioxide in order to meet future demands on carbon dioxide reporting. They also would like to examine the meaning of the term ?green electricity? which is marketed as carbon dioxide free, and the sort of electricity that they purchase. This report includes both direct (liquefied petroleum gas and diesel) and indirect (water, process-water, long distance heating, waste) emissions from their company.

The prevailing food and energy crisis of the world, due to the declining reserves of fossil energy and a never ending rise of consumption, forces us to look into new fields to supply our energy demand. The boom of bio energy is criticized, as food crops are used to provide biodiesel and ethanol and the volumes are ridiculously small to supply world demand. Algae are one of the world?s oldest life forms and exist in many different phyla, providing a great variety to choose from, for different purposes. Cultivating microalgae offer a way to produce energy at great volumes without competing with food production and at the same time the algae offer a way to use our expensive nutrients in a more efficient way, besides this the algae are carbon dioxide neutral since their carbon source can be supplied by the atmosphere and the additional energy required can be supplied by algal oil or other renewable sources.

The proportion of women entrepreneurs in Sweden is, as in many countries, smaller than the proportion of men entrepreneurs. Sweden has therefore created political measures with the ambition to increase women entrepreneurship. However, knowledge about the determinants of women entrepreneurship is needed in order to enable the promotion of it and, at the same time one can question the treatment of women entrepreneurs as a homogenous group. The purpose of this thesis is to investigate the determinants of women entrepreneurship and whether these determinants fluctuate regionally. If this proves to be the case, a more spatial/individual approach should be used, when creating measures to promote entrepreneurship.

Spending a night out in the nature is away for many to experience a slowerpace of life. Refuge cabins are a typeof open-air facility sometimes provided for more far off locations, yet it is in the vicinity of cities and towns that the opportunity for getting out into the natural environment is mostly sought after. Several nature reservs exist around Stockholm with the good intention of promoting the opportunity for outdoor activities. The aim of this study is to investigate how the provision of refuge cabins can be a means of facilitating and augmenting outdoor life experience in a proposed nature reserv to the west of Stockholm.

ABSTRACTMany wind turbines have problems with icing and there is still no effective method to de-ice without stoppage of production and power loss. Here I therefore consider other methods than those available today, and particularly, I consider how these methods could be applied to wind turbines of the company Oxel. A surface where the water droplets do not attach might be the basis for a useful method. If no water attaches, no ice could form. To accomplish this a hydrophobic surface is nessesary, for example wax.

The purpose of the study was to learn how social structures can enable accessibility, by asking persons with visual impairment about their experiences of accessibility in the public environment in the city of Stockholm. Eleven adults with visual impairments, living in the city of Stockholm, were interviewed using two separate focus groups. The study was carried out with the objective to allow for the participants to be involved in the research process. The resulting data was analyzed on the basis of Nancy Fraser?s theory on social justice, focusing on the conceptions; needs, politicised needs, redistribution, recognition and misrecognition.

Fisksätra has a historical background that goes back to the battle between Russia and Sweden that took place in 1719. This battle is known as "Slaget vid Stäket". Today there are plans to develop Fisksätra as a tourist destination where focus lays on the historic factor of the battlefield that took place there. As of this a project called the HAMN project has started to try to develop a new experience park at this destination unlike any other.The aim of this essay has been to study how much potential this experience park has to become a popular tourist destination in the future, while looking at the potential interest of the foreign tourists. This essay is written as an assignment for Göran Andersson, who is in charge of the tourism department at Södertörns Högskola.