This master thesis has been done in cooperation with Sweco Viak AB in Sundsvall. The aimwith the project is to investigate the purifying effect of percolation filter due to iron andmanganese. The overall goal was to investigate how the parameters surface load,sandfractions, and burden time affect the purifying effect. The expectation is to optimize thedesign and find a demouldning of the filter that gives sufficient purifying with a highersurface load. As an attempt to accelerate the curing of the filter, experiments with a layer ofsand which surface has been covered with manganese ore (MnO2) on top of the filter havebeen done.As test filters 10 L bars were used and the experimental work was performed at thewaterworks in Hassela and Munkbysjön.In Hassela different sandfractions were tested.

AbstractThe debate on grammar has been on the agenda for thousands of years. Several different arguments and theories have been used in order to explain the importance of grammar in school. Some newer arguments have been added, while others have stayed, either in their original version, or in a modernised one.This essay aims to clarify the role grammar play in school. In order to do that we have looked into its history, the curriculum, modern research and interviews made with active teachers.The results of the literary studies, the studies of the curriculum and the field studies show that the very presence of grammar in school is disputed. The curriculum of today speaks of an orientation in language, with grammar as a part of it, based on the students? own language.

This thesis describes the development of a tank insert for diesel cars, from idea to a prototype. The idea is to design an insert which makes it impossible to refuel petrol in a diesel car. The insert shall be installed in the existing tank opening on diesel cars. The tank insert is designed for the Swedish company SverigeGrepen AB located in Vänge, just outside Uppsala. Their main product is a pitchfork that is ergonomically designed and durable.A pre-study were performed in which information relating to fuel caps, tank openings, petrol- and diesel nozzles were collected.

This paper is a research review in the realm of censorship systems andfiltering systems. It applies ethical considerations to the creation of censorshipsystems bringing forward discussion on the ethics of technology with thepurpose of limiting access to information.There is active research being done in the area of automatic content filteringand censorship systems. These are systems that can filter out undesiredmaterial, typically from the Internet, automatically. Used in some nations,many schools and even mandated in some libraries there are many ethicalquestions raised concerning censorship and access to information.Part of the review concerns the level of accuracy of these systems presentedby researchers in the field and the different approaches used. Reviewedarticles centre around automatic content classification and filtering ofpotentially harmful materials with regards to minors while some relate tocensorship technology in a wider sense.Results show a general lack of discussion concerning the ethics of thetechnology in the research reviewed.

Several radioactive nuclides were deposited in Sweden after the Chernobyl accident in 1986. The greatest attention was given to 137Cs because of its relative long physical half life of about 30 years. 137Cs will be present in nature for more than 100 years before it has vanished completely. When radiocaesium decays to a stable end product ionizing radiation is emitted, which can cause cancer in humans that has been exposed to a high radiation dose. Radiocaesium behaves like potassium and is easily taken up into biological systems.

The aim of this qualitative study is to gain a deeper understanding of how young people whoare unemployed or have experienced unemployment, experience the situation and how theyapprehend themselves in relation to unemployment. I performed semi-structured interviewswith five young women and men. Three theoretical perspectives have been used for myanalysis, Marie Jahoda?s deprivation theory, Mikael Nordenmark´s PEN-model and HansBerglund?s action theory.The results show that the majority of the respondents perceive the situation as unemployed asdifficult and stressful. Four out of five have more or less felt depressed or sad.

Title: Schibbye och Persson?s Journey: a qualitative analysis of Göteborgs-Posten?s coverage of ?etiopiensvenskarna? from a narrative perspective.Authors: Viktor Eriksson and Max SommersteinSubject: Undergraduate research paper in journalism studies, Dept. of journalism, media and communication (JMG) University of GothenburgTerm: Autumn 2013Supervisor: Mats Ekström, JMG, Gothenburg UniversityPages: 35Purpose: To examine how the narrative-model the hero?s journey is represented within the Swedish newspaper Göteborgs-Posten?s articles on Johan Persson and Martin Schibbye, two Swedish journalists who were imprisoned while conducting journalism in Ethiopia.Method: A combination of Ethnographic content analysis (ECA) and Compositional Interpretation (image-analysis).Procedure: A strategic selection of articles published in the supplement Skenprocessen i Addis Abeba, in Göteborgs-Posten.Results: The narrative model the hero?s journey is clearly represented as cultural frames in Göteborgs-Posten?s articles about Martin Schibbye and Johan Persson. The framing of the events are used to simplify the facts and to make them emotionally accessible.

This study examines how women are portrayed in four of Disney?s feature films, withthe focus on the presentation of relations between women. The films examined areSnow White and the Seven Dwarfs (1937), Sleeping Beauty (1959), The Little Mermaid(1989) and Frozen (2013). The aim is to analyse the development that has taken placefrom a gender perspective, from the earliest film, Snow White and the Seven Dwarfs(1937), to the latest, Frozen (2013), and to reveal the significance of the femalecharacters for each other. The films? portrayal of women and female relations isdiscussed in relation to previous criticism of Disney for their stereotyped portrayal ofwomen, and through a thematic comparison with the known fairytales on which thefilms are based.

Objective: The aim of the study is to describe pupils' understanding of the mathematical concept of function. How do pupils define the concept of function? What images of the concept of function evoke when they solve tasks, which involve identifying and constructing functions?Theory: A student's thinking about a mathematical concept depends on more than just the formal definition of the concept; therefore Tall and Vinner introduce the term concept image to describe the role cognitive structures play when students learn about concepts. The cognitive structure includes all mental images, associated properties and processes that an individual associates with a given concept. According to Sfard, an individual's understanding of mathematical concepts may have different character: an operational conception, where a concept is conceived as a process and a structural conception, where the given concept is conceived as an object, that is, as a whole.Method: 16 pupils at the Science Program at two different upper secondary schools inSweden answered a questionnaire on the mathematical concept of function.

This bachelor thesis is titled Who is an extremist?  - A qualitative content analysis of the agglutination of right- and left-wing groups and is written by Måns Hoffsten within the discipline of political science. This essay aims to illuminate in which way the Swedish government has tackled extreme forms of left-wing and right-wing activism during the period 1980 ? 2013. By looking at how governmental policy-suggestions and reports concerning extremism are formulated during this period this essay explores when and how the two groups first started to become a part of the same problem-representation and on what premises this is built.

The purpose of this Masters thesis is to investigate if gender stereotypes are mediated to children between 0-3 years through books suitable for their age. This thesis concerns books that are available in public libraries. The content will be analysed by using a combination of methods, both content analysis of all the books in our study and a qualitative analysis of a smaller number of these books. With inspiration from both Robert Connell and Yvonne Hirdman and their theories of gender and gender stereotypes, this material was read and we wanted to examine if books for very young children might establish stereotypes. Our analysis showed that many known stereotypes are common in these books.

Syftet med uppsatsen a?r att underso?ka hur tva? resefo?retag i fo?rtroendekris bemo?ter kritik via Twitter samt vilka strategier inom den image reparerande diskursen de anva?nder sig av. Studien a?mnar a?ven ta fasta pa? om det finns ett mo?nster bakom bemo?tandet. Fo?r att uppfylla uppsatsens syfte har tva? fra?gesta?llningar formulerats:· Hur bemo?ter SJ och SAS kritik pa? Twitter? · Verkar fo?retagen vara medvetna om valda strategiers mo?jliga effekter?Fo?r att genomfo?ra denna underso?kning utfo?rdes fo?rst en fo?runderso?kning da?r antalet dialoger mellan fo?retagen och dess kunder sammansta?lldes samt dialogernas la?ngd och antalet akto?rer ra?knades.

This study concerns the type of vegetation selected by cattle grazing on semi-natural pastures, and whether the selection depends on the nutrient content of the vegetation or on other factors. The study was carried out in three different semi-natural pastures in the Uppsala area during June, July and August in 2006. The three pastures were first surveyed, mapped out and divided into sub-areas with regard to the type of dominating vegetation. The vegetation types identified were: wet, mesic, dry, wooded, pasture with signs of former cultivation (arable). Within each vegetation type three 1x1 m sampling plots were laid out. The grazing behaviour of the cows was recorded in a behaviour study.

Background: Being subjected to an extensive burn injury affects the victim´s physique, social life and its psyche. A burn injury can be determined as a trauma. Burn injuries often make the patient suffer from pain, anxiety and lack of a social life. Sister Callista Roy´s theory was used to analyze the result of the study. One of her goal is to promote the adaptive function of self-perception.

In April 1986 an accident occurred at the nuclear power station in Chernobyl. Radionuclides were spread all over Europe including Sweden. Today there are still measurable concentrations of 137Cs in the different ecosystems in the contaminated parts of Sweden. The wild boar is the second most popular game in Sweden and today the Swedish population consumes more wild boar meat than ever. As the wild boar population increases the wild boars are moving further north towards the contaminated areas, which creates an interest to study the state of 137Cs in wild boars in these areas. Muscle samples from wild boars collected during 2010-2013 were analyzed based on 137Cs content.