Brominated flame retardants (BFRs) has for many years been used in products to reduce their flammability, mainly in electronic products, textiles and construction materials. In 2003, Sweden imported 300 tons of brominated flame retardants. Leakage of these compounds has polluted natural environments. Fishes has shown increased contents of these substances, especially fat fish, since brominated flame retardants tends to accumulate in fatty tissues. They are also regarded as persistent and that gives them the ability to travel long distances. What also is really scary is that increased levels of brominated flame retardants have been detected in human breast milk. The knowledge of the brominated flame retardants is limited and not so much research has been done in this field. There are many reasons though, to keep the research going. Partly their structural resemblance to well-known toxics as PCB, but also their ability to accumulate in biological systems and enrich in food chains. In which way they affect humans we really don?t know yet.

Den här studien gjordes för att undersöka om lärare uppfattar ett samband mellan elevers koncentrationsförmåga och fysisk aktivitet i skolan. Den baseras på en enkätundersökning som gjorts i årskurserna 1-5 på sju olika skolor i närområdet. Studien visar ett positivt samband mellan all fysisk aktivitet i skolan och lärarnas uppfattning av elevernas koncentrationsförmåga, vilket även kopplats samman med tidigare forskning inom närliggande områden. Nyckelord: physical education AND concentration, physcial activity AND concentration ability, physcial acitivty AND effect in school, excercise AND brain, physical education AND brain..

Att konsumera kosttillskott ökar i dagens samhälle. Exempel på kosttillskott är energigivande tillskott, prestationshöjande tillskott samt vitaminer och mineraler. En sammanställning av enkätundersökningar i Sverige visar att 61 % av männen och 41 % av kvinnorna konsumerar kosttillskott. Träningsverksamma upplever att produkterna är välgörande och ger positiva effekter på träningen, trots att riskerna med konsumtion av kosttillskott är omdebatterat och ett delvis obeforskat område. Bland träningsverksamma inom styrketräning förekommer även konsumtion av dopningspreparat.

This is a case study about the effects that disasters have on social work. The case in question is the fire in Berga village, Kalmar, which took place the 12: th of October 2011. The aim of this study is to describe the ways in which Kalmar worked crime preventive towards young people before the fire and after. The study also aims to specify if, and how the disaster affected the crime preventive work with young people. In this study we define the fire like a disaster and disaster has the ability to create changes in policy.

Teorier inom Kognitiv hörselvetenskap beskriver hur uppfattning av tal beror på två olika typer av processer. Bottom-up processer associeras med akustiska och fonetiska egenskaper hos en inkommande signal och top-down processer associeras med lexikala, syntaktiska, semantiska samt kontextuella egenskaper. Förmågan att utnyttja top-down processer tros bero på kapaciteten hos arbetsminnet. För att undersöka en skillnad mellan bottom-up och top-down samt deras förhållande till arbetsminnet har ett Speech-in-Noise (SIN) test utformats och genomförts på 15 försöksdeltagare. Testet undersöker skillnader i tröskelvärden för att identifiera ett enstavigt ord i ett uppåtgående förhållande till stationärt brus, mot tröskelvärden för att identifiera ett enstavigt ord i stationärt brus med hjälp att top-down stöd.

Today's global market means that raw materials are sought and bought from all over the world. This creates an higher demand for a well-functioning supply chain. In our thesis we have studied a large paper mill in northen Sweden which experiences issues with flow of raw material. Our aim has hence been to examine which aspects affect the flow of raw materials to the mill, and how these can be adressed using an IT-system. The question we sought to answer was; What factors are important to consider and how do these affect the ability of an IT-system which will support the flow of raw material at the paper mill? We have found that the problems are strongly connected to the low amount of information sharing between the mill and the suppliers.

Numerical simulations play a vital role in both static and dynamic stability assessment of electric power systems and the foreseeing of voltage collapse. Simulations performed by Svenska Kraftnät(SvK) are mainly done in the specialized voltage collapse predicting software tool, SPICA and the more all?purpose software tool, ARISTO.The grid operators at SvK use SPICA to predict the maximum transfer limit at specified sections (in this report the section in concerns is the southern part of Sweden i.e. interface1 4). SPICA is mainly used as an online application by using actual states from the grid, these states update every quarter of an hour.This thesis is a continuation of the master thesis SPICA ? ARISTO JÄMFÖRELSE by Jakob Katzman and Johan Fält.

AbstractThe ability to read and write is a very important skill in today?s information based society. Most of us learn how to read and write, but not everyone is blessed to do this without struggle. Dyslexia is a very common learning disability and therefore I found it interesting to study how teachers teach students with dyslexia.By studying the literature and by interviewing teachers, I found that dyslexia is a very complex disability. The teachers have to adapt their way of teaching in a way that a student with dyslexia can participate.

Detta examensarbete är en studie av turbinoperatörers arbete under driftsituationen husturbindrift vid Ringhals kärnkraftverk. Syftet är att undersöka dels under vilka förutsättningar turbinoperatörerna arbetar under detta driftfall och dels hur de grafiska användargränssnitten kan anpassas till driftfallet för att möta operatörernas informationsbehov. Utifrån intervjuer, observationer under simulatorträning, uppgifts- och länkanalyser fastställdes operatörens informationsbehov under husturbindrift och designkriterier för ett situationsanpassat gränssnitt togs fram. Arbetssättet Cognitive Work Analysis har fungerat som ett ramverk för studien. De viktigaste designkriterierna är: - Parametrar som är viktiga för situationen ska presenteras tillsammans med mål och/eller gränser för värdet som visas.

The buying decision process describes how the consumer makes a purchase decision through a rational process (Markin, 1979) and an understanding for how consumers make a purchase decision can according to Sands et al. (2010) be obtained by increased knowledge for the information search process (the second part of the buying decision process) before a purchase. Today?s society offers great opportunity to obtain information (Rahim & Clemens, 2012; Bawden & Robinson, 2009) and by that there are in other words good opportunities for a rational acting by the consumers. However, there are factors working against that consumers act rationally and seek information prior to their purchases primarily in the form of the concept of information overload (Bawden & Robinson, 2009) which claims that consumers are limited in their information search because there is too much information but also other factors such as lack of time (Wood & Neal, 2009) and ability to find information (Slegers et al.

Andelen kvinnor som väljer och fullföljer bygg- och anläggningsprogrammet är lågt i förhållande till övriga gymnasieprogram. Det är ett problem att så få kvinnor slutför sin utbildning på programmet med tanke på den investering som individen gör i form av insatser i studier och tid som läggs på utbildningen i onödan. Vidare bidrar detta till att arbetsmarknaden fortsätter vara könssegregerad. I den här studien undersöker vi vad som trots allt får kvinnliga elever att stanna kvar på programmet och ta sin yrkesexamen. Syftet är att beskriva och förstå kvinnliga elevers upplevelse av sin utbildning på bygg- och anläggningsprogrammet, samt hur de uppfattar sin karriär och sig själva.

AbstractMy purpose of this essay was to discover three- and four-year-olds comprehension of their internal body and then compare the result between their ages. I have used the same methods in both essays, semi-qualitative interviews. It is structured interviews with space for following questions. My formulations of the questions were: Do the children have a comprehension of their internal structure of the body? Do the children have a comprehension of organs and organ systems? Is there any difference between the ages?Their comprehensions I have categorized in four categories and I have seen age related differences in their comprehensions.

The case method is a relatively new pedagogical method in Sweden that is based on students exercising their skills in the analysis of complex situations and problems that are based in reality and that help students to see a broader perspective and context.The purpose of this study has been to investigate, through interviews with students and teachers, the advantages and disadvantages of the case method in teaching geography.The results of the study show that both teachers and students share almost the same opinion. The conclusion is that the case method is a didactic method that is well suited for teaching geography, as it is based on reality and develops the students? ability to analyze, argue and find solutions in several areas within the subject of geography. If a student is strong in these skill areas they can really benefit from the application of the case method in the teaching of geography, but for students who are weaker in these skills, the case method can be a disadvantage.

The purpose of this essay was to investigate which factors the individuals found important in the process of becoming a person with a drug-free life. The framing of the questions we had were to get the experiences, thoughts and wishes of the drug users. The survey was based on thematised qualitative interviews and focused in the personal stories of the interviewees. We interviewed four women and five men, all of which had several years of drug-abuse behind them. We found similarities and patterns and we could identify that the three most important things was the own motivation, will and that the drug-abuser had the possibility to change their social network and had the ability to find other important things in life..

This degree project is an investigation of solar cells and their ability to deliver electric power as well as reducing the need for cooling. The main object of interest is a BASE-X shelter. The shelter is purchased by the Swedish Defence Materiel Administration, FMV to be used for command and camp in the new force called Nordic Battlegroup, NBG. The demand on the equipment is firstly that it should have a small weight to be easy to transport and handle and secondly to be easy to bring up fast. Therefore the choice of solar cell technology fell on thin film cells.