Discharge of untreated wastewater leads to unnaturally high levels of nitrogen and phosphorus in rivers, lakes and the sea, which results in unbalanced ecosystems with eutrophication and lack of oxygen. Part of the phosphorus in surface waters is coming from on-site wastewater treatment from scattered households with unsatisfactory purification. Blast furnace slag is a by-product from iron production, and has in laboratory trials showed good phosphorus binding capacity. To test blast furnace slag as a reactive filter media for phosphorus separation in a full scale experiment, a wastewater treatment plant has been built behind the picnic area at Ångersjön alongside the road E4 in central-eastern Sweden. The plant contains two parallel lines, one with blast furnaces slag and the other with Filtralite-P as phosphorus sorbent. Both filters have showed decreasing phosphorus purification effect with time in spite of a low wastewater load.

From embankment dams is something that has long been noticed and given rise to different questions. The most serious question is if the sludge is a result of inner erosion through the dam, and thus consists of material transported from the dam. Concerns have also been raised whether the sludge could interfere with the systems drainage capacity and thereby lead to high pore pressure in the dam, or if the measurement of seepage is disturbed, as the measuring is usually made via Thomson weirs, which could risk being blocked. The result of this investigation shows that the sludge is a result of the oxidation of iron by iron bacteria, and to the greater part consists of these oxides as well as the bacteria?s own structures. The iron oxidizing bacteria, FeOB, oxides ferrous iron to ferric as a part of their metabolism, and thereby create large quantities of iron(oxy)hydroxides.

Bakgrund och problem: Olika belöningssystem har den senaste tiden skapat stora rubriker massmedialt. Belöningssystem används som ett styrningsverktyg för att skapa incitament hos de anställda samt motivera dessa till att göra ett bättre arbete. Det är av stor betydelse att de anställdas mål överensstämmer med företagets övergripande mål och strategier. För att uppnå detta mål inom företaget som vidare skapar effektivitet används en rad olika belöningsformer. Dessa är såväl monetära som icke-monetära samt delas ut kollektivt och/eller individuellt.

Bakgrund och problemEtt generellt problem är att forskning baserad på små och medelstora företag är mycket liten, med avseende på ekonomistyrning samt mätning av resultat.SyfteSyftet är att beskriva och analysera vilka mått som används i fyra små tillverkande företag. Hur måtten mäts, hur informationen kommuniceras kring dem, i vilket syfte de används och om måtten är kopplade till något mål i företaget, är frågor som studien vill besvara. Uppsatsen syftar till att skapa en ökad förståelse för hur små företag mäter sin verksamhet i avsikt att bedöma sitt resultat.Metod Med en abduktiv ansats och hermeneutiskt synsätt har den empiriska och teoretiska referensramen insamlats. Genom en kvalitativ studie och besöksintervjuer hos fyra små tillverkande företag har vi fått möjlighet att beskriva och analysera hur de använder sig av mätning i sin verksamhet. Teoriramen har sedan använts för att skapa en djupare förståelse för empirisk data.SlutsatsDe mått som används i små företag måste utformas utifrån varje företags specifika förutsättningar för att träffa rätt då många faktorer spelar in i valet av mått.

Background: Since1994, the EU NickelDirective is limiting the release of nickel from objects that are in prolongedcontact with skin. Despite this, nickel is still the most common cause of contactallergy in industrialized countries. This could implicate that other productswith short contact to the skin, which are not restricted by EU´s legislation inREACH (Registration, Evaluation, Authorisation and Restriction of Chemicalsubstances), could be a source of nickel or cobalt exposure. There is no limitfor cobalt release within REACH. To determine if there is cobalt or nickelpresent on the surface of a material and if metal can be released in contactwith the skin, there are quantitative and qualitative methods, such as the DMG(dimethylglyoxime)-test, the cobalt spot-test and a method for releasedetermination according to EN1811.Objectives: Laptops are not included in the REACH legislation.

This thesis examines how to improve the exhibition of products within retail for clothes and gift articles. The purpose is to investigate and test how light sources and different directions of light affect how the products are perceived regarding their exhibition. Our question formulations are:To what degree does the level of light in combination with the background of the interior design of a shop affect whether a product is perceived more or less attractive?What can we recommend to make the exhibition of products more attractive? From our observations shops nowadays have relatively high levels of light when they expose products on vertical areas. We have looked on the recommendation from ?Energimyndigheten? in order to see what they think is important when designing retail lightening.

Sahlgrenska Academy at University of GothenburgDepartment of Internal medicine and Clinical nutritionAbstractTitel: Can omega-3 prevent the emergence of allergy?? A systematic reviewAuthor: Karin Andersson and Cecilia BjörertzSupervisor: Henriette PhilipsonExaminer: Anna WinkvistProgramme: Dietician study programme, 180/240 hpType of paper: Examination paper, 15 hpDate: 2012-05-23Background Today allergy is a major public health issue and one of our most common chronic diseases. It would be most profitable if there was a way to prevent the emergence of allergies, both regarding the community and the individual. The antiinflammatory property of omega-3 influences the immune system and is thought to have a preventive effect on allergic symptoms. To investigate whether the mothers intake of omega-3 during pregnancy and lactation affects the child?s future development of allergy is therefore of high interest.Objective To examine if omega-3 supplement given to mothers during pregnancy, or pregnancy and lactation, is shown to be beneficial in children with heredity to develop allergy.Search strategy Articles were collected from the data bases PubMed, Cochrane and Scopus.

Limträ är ett material som består av sammanlimmade lameller av konstruktionsvirke. Limträ tänjer gränserna för vad man kan bygga med trä, genom att erbjuda balkar med längre spännvidd och med större tvärsnitt än vad som annars vore möjligt. Genom förstärkning av limträkonstruktioner med kolfiberkomposit skulle lastkapaciteten kunna höjas ytterligare. Tillämpnings-området för förstärkning av limträkonstruktioner skulle kunna ligga inom nyproduktion eller kapacitetshöjning av befintlig konstruktion. Syftet med detta examensarbete är att undersöka förstärkningssystemets potential vid förstärkning av limträbalkar med kolfiberkompositstavar.

One must consider cost effectiveness when deciding how resources within the health sector should be distributed. Quality adjusted life years (QALYs) are used to measure the value of different medical treatments. QALY is based on utility maximization theory, which suggests that a QALY is always a QALY regardless of who receives it. Therefore, a produced QALY is worth the same regardless of the age or the initial health of the patient. Previous research has shown that these assumptions do not seem to fit the real preferences of individuals.

Bakgrund och problemdiskussion: När IAS 40 Förvaltningsfastigheter blev tillämplig 2005 tilläts förvaltningsfastigheter värderas till verkligt värde. En del problem har framkommit genom införandet av värdering till verkligt värde av förvaltningsfastigheter. Detta har lett till att IASB i samarbete med FASB arbetat fram en ny standard, IFRS 13 Fair value measurement, som behandlar hur värdering till verkligt värde ska gå till. Syftet med samarbetet av den nya standarden var att få en mer harmoniserad, globaliserad och jämförbar redovisning. Då det idag inte är självklart hur värdering till verkligt värde ska gå till vill vi utreda om införandet av IFRS 13 kan komplettera IAS 40 och ge mer vägledning för värdering av förvaltningsfastigheter.

This report describes an investigation of the indoor climate in two different workspaces. Since we a big part of our lives are staying indoors in artificial environments, and more particularly in our workplaces, we think it would be interesting to do this investigation. The technical solutions for air treatment systems began with simple natural systems without fans and where the thermal rise of the air applied. In modern time is technical air treating systems used to take care of the fresh air supply. This type of units can supply filtered air with the right temperature to the building. Well-functioning ventilation is essential to bring clean fresh air to the room and effectively remove impurities without sound- or draught problems. The indoor climate is relevant for the output capacity.

The interaction between the driver, the car and the road is essential for the road safety. This case study focuses on the road condition and its effect regarding road safety issues. By studying and isolating the road condition aspect and its contributing role to the accident occurrence, the aim is to explore their relationship, as well as highlight the road parameters that are commonly associated with accident occurrence. This result will be used to develop and increase awareness of the impact of poor road alignment and poor road surface conditions on traffic safety, in order to prevent these accidents from occurring. The road parameters chosen for this study include side friction, cross slope and rut bottom cross slope, road texture, curvature, drainage gradient and rutting.The case study was limited to lv 360 in Va?sterbotten, where all accidents with an unclear cause of the accident were studied, between 2003 and 2012 were carefully studied and assessed based on the condition of the road at the time of the accident.

Hemangiosarkom är en förhållandevis vanlig tumörtyp hos hund, där den typiska patienten är en äldre tysk schäferhund. Hemangiosarkom kan vara både kutant och visceralt. De viscerala tumörerna är ofta lokaliserade till mjälte och hjärta, där en predisponering har setts till höger hjärtöra. Sjukdomsförloppet vid hemangiosarkom är snabbt och de flesta hundar dör inom ett år från det att diagnos ställs. Alla drabbade hundar hinner inte ens påbörja behandling. Syftet med den här litteraturstudien är att undersöka vilket cellulärt ursprung hemangiosarkom har.

The private sewage systems in Sweden releases around 600 tons of phosphorus per year, compared to about 350 tons from municipal sewage treatment plants, and they account for approximately 21% of the total anthropogenic discharge of phosphorus into Swedish waters. About 40% of Sweden's nearly 1 million private sewage systems are inferior with respect to emissions to surface and groundwater. The technology of small sewage plants is under development and knowledge of treatment effects for different solutions is poorly consolidated. Municipal authorities lack resources to keep up with the technologic development and assess the reliability of the treatment performances that suppliers report for their products. The thesis aims to conduct a market review and evaluation of wholly or partially prefabricated small sewage plants, to make it easier for municipalities and property owners to assess different technical solutions. The goal is a compilation of the products on the market, evaluated on the basis of the reliability of specified degrees of reduction.Information on sampling procedures and test results were collected through a questionnaire to all active suppliers and the responses were then used to classify the products.

Fieldstudys on 22 farms (23 silos) to study relationships between the actual particle size of the maize silage and the theoretical length of cut. The measure of theoretical length of cut were stated by the farmers and not measured by us. Particle size of maize silage was determined using the New Penn State Forage Particle Separator. SLU Skara made a special sieve for us, that had larger holes than de original sieves. The samples were shaken after instructions and then the material was weighted. We have also been taking out samples for microbiological analyses from the silos on 13 of the farms.