Klamydia ökar bland ungdomar och unga vuxna i Sverige. Eftersom infektionen ofta är asymptomatisk och kan leda till infertilitet är det viktigt att de som utsatts för smitta testar sig. Även ett ökat utövande av säkrare sex är viktigt för att stoppa utvecklingen. En litteraturstudie har gjorts för att kartlägga preventionsinsatser som görs inom området sexuell hälsa och ta reda på hur ungdomar och unga vuxna ser på sexualitet, sexuellt riskbeteende och säkrare sex. Nio vetenskapliga artiklar användes för att få en bild av ungdomskultur och sexualitet.

The determination of the optical properties of biological tissue is an important issue in laser medicine. The optical properties define the tissue´s absorption and scattering behaviour, and can be expressed by quantities such as the albedo, the optical thickness and the anisotropy coefficient. During this project, a measurement system for the determination of the optical properties was built up. The system consists of a double integrating sphere set-up to perform the necessary reflection and transmission measurements, and a computer algorithm to calculate the optical properties from the measured data. This algorithm is called Inverse Adding Doubling method, and is based on a one-dimensional transport model.

The aim of this masters thesis was to study how the members of a small non-profit organisation perceived the web forum, compared to the other information channels of the organisation. The organisation was defined as a virtual community. A literature review was conducted. The theory construction was based on the sensemaking theory. Interview questions were constructed based on the literature review and the sensemaking theory.

The Swedish real estate market has experienced an intense increase of demand during the last ten years. Thus, people regularly visit real estate websites, as well as home improvement and interior design have become extremely popular. However, the Swedish real estate agencies still have not developed a theoretical framework on how to most effectively market the properties. The main purpose of this study was to investigate how interior in apartment advertising affects the buyer's interest in the apartment, and furthermore to start building a framework for how to effectively use interior as a marketing tool. The study connects theory regarding social identity, advertising effectiveness and product personality in order to investigate consumer behaviour in the real estate market.

Two elementary schools are now being built in Gråbo (in the municipality of Lerum),Röselidsskolan and Ljungviksskolan, which are both designed with solar thermalcollectors for the schools domestic water heating. During the summer while thelargest amount of solar heat can be generated, the activity hence the domestic wateruse in the schools are heavily reduced. Both schools are connected to the local districtheating system which makes it possible to use the solar collectors to deliver heat tothe district heating.The purpose of this thesis is to evaluate the two systems mentioned above and todetermine which system is more suitable to apply on a school. The building whichconditions were used for this evaluation is Röselidsskolan.A solar heating plant of each system type was dimensioned from the expected andknown conditions of the building. The purpose with the dimensioning was to makethe solar plants replace the ordinary energy source as much as possible.

The purpose of this study is to describe melanotic tumours and the pathogenesis of these tumours. The focus of this study is on differences between benign and malignant tumours as well as the prognosis one may expect when diagnosing this disease. The mechanisms responsible for the occurrences of the tumours are not yet fully understood. It is believed that factors such as chronic trauma, infections, medications and hormones affect the cell mechanisms in some way. Determinants of the malignancy of the tumour are not completely known.

Two elementary schools are now being built in Gråbo (in the municipality of Lerum),Röselidsskolan and Ljungviksskolan, which are both designed with solar thermalcollectors for the schools domestic water heating. During the summer while thelargest amount of solar heat can be generated, the activity hence the domestic wateruse in the schools are heavily reduced. Both schools are connected to the local districtheating system which makes it possible to use the solar collectors to deliver heat tothe district heating.The purpose of this thesis is to evaluate the two systems mentioned above and todetermine which system is more suitable to apply on a school. The building whichconditions were used for this evaluation is Röselidsskolan.A solar heating plant of each system type was dimensioned from the expected andknown conditions of the building. The purpose with the dimensioning was to makethe solar plants replace the ordinary energy source as much as possible.

The present study tested the prediction that male offenders are judged more harsly than female offenders for involving in a violent crime. Three-hundred and fifty-four adult students (163 men, 190 women, 1 unspecified gender) evaluated a hypothetical crimescenario describing a violent conflict between two parties, as part of a 2 (Informants Gender: Male/Female) x 3 (Offender Gender Triad: Male/Female/Neutral) x 3 (Victim Gender Triad: Male/Female/Neutral) between-subjects design. In situations involving male offenders, compared to female offenders, the informants judged the male offenders more harshly which exposed a double standard, as we expected. Informants also believed that it was more likely that a male offender was a recidivist..

This project aims to investigate whether algae can be used for biodiesel production in Italy. Algaes are a good option since they are fast growing and do not occupy arable land. The aspects that have been considered are growing, harvesting, which algae strain that is most suitable, extraction of oil, the production of biodiesel and where in Italy this could be possible due to climate. Cost? and energy calculations have been made to investigate if biodiesel produced from algae would be profitable. During the production of biodiesel there are several residues obtained. When the oil has been extracted from the algae, biogas is produced from the residual biomass by anaerobic digestion and then the electricity that can be produced is supplied to the production of biodiesel.

The initial aim of the roll out of smart electricity meters in Sweden was to allow remote readings of the households? monthly electricity consumption for billing purposes. Since then the transition towards a smart grid has become a more prioritized matter. In the roll out of next generation smart meters more attention is therefore given to how the Distribution System Operator (DSO) can benefit from the meter through different smart grid applications. This study uses a qualitative research method to identify three general fields of application and 15 specific concepts corresponding to ways in which the DSO can create added value from the information provided by the smart meter.

The aim of this thesis is to investigate new knowledge about how children search for library material and which strategies they use, and if the latest research gives any answers whether we should adapt systems and services or teach information seeking in a better way. In this thesis knowledge is understood as research publications but also results from projects in library practise, and studies concerning children 6 to 18 years old are included. The method used is a knowledge survey. We have gathered and evaluated documentation from different sources like citation and reference databases within the field of library and information science. The result implicates that there are, both in old and new documentation, three main search strategies children use in their search for information in a library context; they browse, they search in library catalogues and they use some sort of reference service.

Two elementary schools are now being built in Gråbo (in the municipality of Lerum),Röselidsskolan and Ljungviksskolan, which are both designed with solar thermalcollectors for the schools domestic water heating. During the summer while thelargest amount of solar heat can be generated, the activity hence the domestic wateruse in the schools are heavily reduced. Both schools are connected to the local districtheating system which makes it possible to use the solar collectors to deliver heat tothe district heating.The purpose of this thesis is to evaluate the two systems mentioned above and todetermine which system is more suitable to apply on a school. The building whichconditions were used for this evaluation is Röselidsskolan.A solar heating plant of each system type was dimensioned from the expected andknown conditions of the building. The purpose with the dimensioning was to makethe solar plants replace the ordinary energy source as much as possible.

The purpose of this master thesis is to evaluate how internal vehicle information inScania buses and trucks can be used for evaluation of driver performance regardingfuel economy, vehicle wear, traffic safety, emissions and cargo damage. To someextent it was examined whether this information could be used for training the driverto a better driving style. In addition, a prototype for such a system was developed.By first defining what distinguishes a talented driver and how he/she differs from apoor driver, followed by a study of the internal vehicle communication, a system thatin real-time gathers and interprets vehicle data could be developed.The resulting system can with reasonably high reliability detect a number of trafficevents (such as braking, lane changing or hilltops). At each such event, the driver?sbehaviour can be evaluated.

Syftet med denna studie är att få större kunskap om NT-projektet, vilket är en kommunalsatsning på naturvetenskap och teknik, och om denna satsning gjort någon skillnad när det kommer till pedagogernas arbete med kemi i kommunens förskolor. Vidare kommer det också undersökas om de som arbetar med NT-projektet har någon särskild utbildning. Detta då det finns intresse att utvärdera NT-projektet och deras ?NT-lådor? samt införskaffa kunskap inom detta område inför framtida arbete inom kommunen ifråga. Kvalitativ- och kvantitativforskningsmetod har använts för att nå fram till frågeställningen.

Syftet med studien var att beskriva och analysera hur de deltagande ungdomarna uppfattar Navets preventionsprogram. Våra frågeställningar var: I vilken grad uttrycker ungdomarna att de uppfattade och tillgodogjorde sig föreläsningens upplägg? I hur hög grad anser ungdomarna att deras kunskap och/eller attityd till alkohol har påverkats av föreläsningen? Anser ungdomarna att insatsen kan utvecklas för att på ett bättre sätt verka förebyggande? På vilket sätt i sådana fall? Vi valde att göra studien enligt den kvantitativa metoden och använde oss utav enkätundersökning för att samla in vårt resultat. Theory of planned behaviour har använts som teoretisk utgångspunkt. Resultatet visar att ungdomarna anser att föreläsningen är tillräckligt omfattande och ett positivt resultat visas även på frågan om föreläsarens attityd påverkade föreläsningen.