A number of chemical agents, and their degradation products, have been recognized as having estrogenic activity on animals. On fish they interfere with endogenous estrogen and in many cases mimic its activity, thus increase estrogenic reponse, with elevated levels of vitellogenin. Hence they are called Endocrine Disrupting Chemicals, EDCs. Vitellogenin levels is often used as a biomarker of exposure to estrogenic pollutants. Wastewater from sewage treatment works contains chemicals known as EDCs, and there are evidence of roach (Rutilus rutilus) living in recipients of such wastewater having traits of both gender, i.e. oocytes in male gonads (intersex) on histological examination. This study was done on roach living in Lake Funbosjön Uppland, Sweden.

Abstract P. Hed. (2011) What is health for men? Bachelor thesis. Gävle: University of Gävle, Faculty of health and occupational studies; 2011.

Marknaden för mobila system har utvecklats enormt snabbt de senaste åren. Idag är det ett område med en allt större omsättning och det har vuxit fram som en helt ny gren inom Software Engineering. Utvecklare av mobila applikationer står ständigt inför en utmaning när det gäller att välja vilket mobilt system man ska satsa på när man utvecklar applikationer. Valet av system kan vara helt avgörande för om man hittar rätt målgrupp av konsumenter och därmed kan generera tillräckligt med omsättning för att driva lönsam utveckling av applikationer. Det räcker inte att enbart kolla på vilket system som har mest användare eller vilket system som genererar mest omsättning, utan man bör noggrant överväga de förhållande som gäller för just den applikation som ska utvecklas.

To reconstruct a building is a long-term investment for farmers and it is important that people with different qualifications are involved at an early stage for making the system adapted to the animals as well the animal keeper. Therefore, ethologists who can contribute with their expertise are needed to design the system and get it to function well for the animals.A Swedish farmer who planned to rebuild her stall for tied dairy cattle to a loose-housing system for recruitment heifers for milk production asked me as an ethologist to find a system which can be fit to her existing tie-stall barn for 30 dairy cows, considering the animal needs in terms of movement, social interactions and play behaviors, and to theoretically compare the system with other systems with respect to the behaviors mentioned.The theoretical comparison between different systems was made through a scientific literature review.In agreement with the animal keeper I set out to fit a system with feeding cubicles, a system with cubicles and a system with deep straw bedding to the barn. After measurements were taken and preliminary drawings were outlined it was found that only the feeding cubicle system was possible to fit to the barn.The space provided will limit the animals to perform some playing behaviors. To decrease aggressive interactions between animals even thought a limiting area it is possible to provide partitions between resources animals compete around to prevent that more than one animal can get success to the resource at a particular place at one time. To increase the animal movement in the system the water trays were moved to the outer wall instead of kept in contact with the stalls.Although this report provides guidelines for rebuilding, other competences regarding building construction and a pre-test of the suggested building solution according to Swedish legislation are needed before the rebuilding can start.The results are directed mainly to the owner of the barn, but the literature review can be used by other cattle farmers and might bring increased understanding of the possible effects of different building solution on the animals..

Projektet omfattade en jämförelsestudie avseende stomsystem. Studien undersökte ramverk och fackverk/balk/pelar-system och genomfördes självständigt med stöttning av Ramböll AB´s kontor i Falun. Syftet var främst att undersöka vilka skillnader det finns mellan tvåledsramar och fackverk/balk/pelar-system för lätta hallbyggnader och försöka få klarhet i varför fackverk/balk/pelar-system är det dominerande systemet i Sverige eftersom övriga Europa har tagit en annan utveckling och domineras av tvåledsramar. Studien undersöker skillnaderna mellan systemen i en hallbyggnad med förutbestämda mått i stål.Inledningsvis gjordes en litteraturstudie för att få en bredare bakgrund av systemen och en bättre förståelse om förutsättningarna för varje system. Efter litteraturstudien kunde sedan ett typhus och beräkningsunderlag för jämförelsestudien tas fram.

?Facebook has become as natural as having a phone? The use of social media in three libraries in the Umeå region ? an evaluationSocial media has come to be an integral part of people?s everyday life, as well as the business world in terms of communication and marketing. More and more libraries also embark in the use of social media, and the purpose of this study is to evaluate the use of social media in three libraries in the Umeå region. The libraries all use Facebook as their current, primary social media. Thus this study focuses partly on the analysis of the content on each library?s Facebook page, and partly on the experiences of the responsible librarians. The evaluation is based on a mix of existing tools in evaluating social media that are relevant in a library context.

The aim of this bachelor thesis is to examine the current situation as regarding the political equality in Iran. The method of this reaserch is based on a single-case studie wich grounds in secondary sources. The analysis of this paper is based on fields that concern political equality which in this study will focus on the right to vote, candidacies in the parliament election 2004 and the presidential election 2005. A democracy theory by Jack Lively is used to analyze the political equality in Iran´s political system.The Iranian regim is strongly criticized by the goverments in the Western world and NGO´s for the situation of the democracy and the human rights in the country. Despite the criticism, Iran still continues in the same political direction, although the democracy has gained a stronger role in the political sphere.

I denna studie undersöktes designöverväganden för ett VR-system som ska stödja en arkitektonisk designprocess. Dagens användning av VR-system inom arkitektur är inte särskilt utbredd men anses vara ett stort framtida användningsområde för VR-teknik. Större delen av den forsk-ning som bedrivs inom VR-området fokuserar på tekniken i sig. VR-system skapade i demonstrationssyfte används till att undersöka fenomen som avståndsbedömning och navigeringsförmåga i virtuella världar. Denna forskning är viktig, men är inte tillräcklig för att ge vägledning i hur man bör designa ett VR-system som ska stödja en arkitektonisk process.

The purpose with the examination is to examine a preschool head and three teachers experiences and opinions of whether the tablet can be used to support childrens linguistic development and social interactions in preschool. To answer the purpose we will use these questions of issue:What is the purpose with tablets and how are they used in preschool activity?What pros and cons do the teachers see with tablets?How do the teachers resonate about the use of tablets to develop childrens language skill and social interactions?What type of social interaction occurs when children use the tablet?We have used interviews and observations as our methods. We interviewed three teachers and one preschool head in the capital city of Sweden. They all have a positive attitude towards the use of tablets in preschool.

Arlanda airport is Sweden?s largest airport. The demand for comfort cooling of the airport?s buildings is high and is mainly provided by district cooling. District cooling is based on the same principle as district heating.

In past decades information technology has changed the conditions of organizations, not at least within the industry. Advanced IT systems have become a fact in order to cope with rapid changes in the market and to effectively manage an organization?s knowledge. When organizations became more flexible and customized expectations from customers and stakeholders also become higher. These expectations and guidelines are documented in a company?s management system, which can be designed differently depending on what standards the company chooses to implement.

The mission was to create a prototype of a menu system for the companySystem Andersson AB. The instructions were that it has to be as interesting andmodern now as in 20 years. We had to look at technology from the cutting edgeof development to make our prototype survive in the future. WindowsPresentation Foundation (WPF) was the technique we focused on. There areonly a few applications that take advantage of WPF today, but it is predictedthat WPF will be the next generation method for developing applications to theWindows platform.To make our menu visually appealing, easy to use and at the same timefunctional, we followed the clear path and guidelines that are available ininteraction design.

Organisationer står inför ständiga förändringar och det medför att organisationers IT-system behöver anpassas därefter. För att besvara dessa förändringar investeras det i nya IT-system. Dock prioriteras oftast inte hantering av de föregående systemen, så som systemavveckling. Systemavveckling behandlas ytterst lite i befintlig litteratur, till exempel hur en systematisk avvecklingsprocess skulle kunna genomföras. Utifrån detta utformades uppsatsens syfte att belysa ämnet systemavveckling och kartlägga centrala begrepp. För att uppnå syftet har två fallstudier genomförts samt en genomgång av befintlig litteratur.

The SAB-system (Klassifikationssystem för svenska bibliotek) was created almost a hundred years ago and has often been viewed as insufficient among many academic libraries. KB (Kungliga Biblioteket) has therefore decided to change to DDC (Dewey Decimal Classification) which means that the Swedish libraries are now facing a challenge that involves a change to a new classification system. This is a comparable situation that occured when the SAB-system was created. The aim of this Master?s thesis is to examine the Swedish library sector´s approach to a new classification system, first to the SAB-system and then to DDC.

Den här studien avser att undersöka i vilken utsträckning befintliga riktlinjer för datorstött samarbete är tillämpbara för asynkrona, geografiskt distribuerade system i syfte om att minska det socio-tekniska glappet. Det är ett glapp mellan vad användare efterfrågar socialt och vad som är tekniskt möjligt att stödja, där medvetenhet om andra användare är en central utmaning som påvisar ett glapp. Som praktiskt fall studeras Intercopy.net som är ett system för dokumenthantering via Internet. Resultaten visar att det verkar finnas få riktlinjer specifikt avsedda för asynkrona, distribuerade system och de som avser datorstött samarbete generellt kan vara svåra att tillämpa. Riktlinjer för enskilda användare och för datorstött samarbete kan därför med fördel kombineras vid utveckling och utvärdering av datorstött samarbete för att öka användbarheten på individ- och gruppnivå.