Mathematical models possible to simulate are of great importance in order to make successful projects in the aircraft manufacturing industry. An aircraft fuel system is very complex, containing pipes, tanks, orifices, valves and pumps. The principal of this thesis is using the tool Easy5, which no longer is considered reliable enough in terms of development and support. This thesis tries to evaluate the Modelica language as a possible alternative to Easy5. To make this evaluation, the components concerned in the fuel library in Easy5 are implemented to the Modelica language.

The amount of various phosphorus (P) fractions in the sediment and the relationship between the amount of P and sediment particle size were investigated in a constructed wetland southwest of Linköping. Furthermore, the possible correlation between clay content in the sediment and distance from the inlet was investigated. Sediment samples were collected along three transects from the inlet to the outlet, with six samples in each transect. In order to measure the soluble P, an NH4Cl extraction was done. This was also analysed for total soluble P after oxidation with peroxodisulphate.

The research of this Masters thesis examines if during a specific period of time, Environmental scanning connected to Swedish public libraries is discussed in journals that are directly connected to the field of Swedish libraries. The method employed was content analysis of articles, news items and ads with the intention of finding out the extent of Environmental scanning and who carries it out and how and what is scanned. The research covers the period from 2004-01-01 to 2004-08-31. During the research period 1387 articles, news items and ads were analyzed. The study focuses on 81 selected published units that directly include references or discussion about Environmental scanning.

According to some researchers, dyscalculia is at least as prevalent as dyslexia. Somewhere between 3.6-6 % of all pupils have specific mathematics difficulties named dyslexia. If this be true, it should present the most complex special education predicament by far in schools today. Despite the statistics, dyscalculia is still a rather unknown concept.The cause of dyscalculia is not yet fully analyzed. There are several theories and many researchers see similarities between dyscalculia and the special educational problem of reading and writing, dyslexia.

This study revolves around calculating the extent of appearance of both anonymously and named men and women as well as determining whether or not Yvonne Hirdman?s gender theory is applicable on two versions of a Swedish educational history textbook called Epos: historia: för gymnasieskolans kurs A (2008) and Epos [historia] 1b (2012), published for two different curriculum. Our qualitative investigation of two parts of the book?s content proves that the two principles of gender system are present in both books, although to a lesser extent in the latter version. Calculating the material, results have shown that anonymous men and women are almost equally presented in Epos 2012, which is not the case in the 2008 version.

The purpose of this Master?s thesis studies is to examine how information seeking is taught from a pedagogical and didactic perspective. The questions at issue are:? What is the content in information seeking education?? What aims are focused in information seeking education?? What methods are used in information seeking education? The methods being used are empirical studies and studies of literature, within the subject area. The study is inspired by phenomenographical learning theories.

The purpose of this dissertation is to create an understanding of how a personal idea in the mind of an entrepreneur becomes an outspoken vision in one biotech company. More specifically, for what purpose the vision is used at different stages, how it is communicated, its content and what impact previous visions have on future vision work and in order to reach a deeper understanding of how vision develops over time and how it is used we have employed a qualitative approach based on a case study. The theoretical framework starts with the concept of vision and related concepts. Furthermore, the entrepreneur?s and manager?s usage of vision is examined.

The digitalization of the media industry has involved great changes for the Swedish daily press. Instead of subscribing on a daily newspaper, more people tend to read newspaper's free edition online.  The recent recession has contributed to strike hard against the newspaper's economy. This is the problem our research is based upon. How will the newspaper develop and which measures have to be done to get a well functioning business model that is suited for future conditions?We have made qualitative interviews with Swedish newspapers: Göteborgs-Posten, Norrköpingstidningen, Sydsvenskan and with the danish newspaper Politiken.

Background: Chemotherapy and radiation resistance are major causes of failure in cancer treatment. The response to treatment in cancer cells depends on several mechanisms and pathways such as Janus kinases-signal transducers and activators of transcription JAK/STAT pathway. STAT1 was the first described transcription factor in the STAT family. STAT1 is activated by stimulation of signaling proteins such as type II interferon (IFN- ?) and the activated STAT1 translocates from cytoplasm to nucleus.

In this thesis I investigate what librarians working with children do for six-year-olds at the libraries in order to stimulate them to read. I also investigate how children of this age read and what books are like for these beginners. The background for the thesis is that reading decreased a lot in ages three to eight during the 1980s and 1990s. My aim is to see what projects, methods and other strategies there are to get children to read. The method used is case study.

The aim of our study has been to see how DIK-forum represents the occupational groups that are represented in the frames of the trade journal. We have, to find out the phenomenon, done a content analysis by looking into 18 numbers of DIK-forum from year 2006 and 2007. The 18 strategically chosen journals was enough to give us a statistic result that we later on could generalize over those two years of DIK-forum. Totally there were 818 articles, news items and vacant advertisements that made the central point of this study. By these materials have we studied the representation of the occupational groups to find out if there were any over- and/or under represented groups, and also if the publications of the material were directed to the students or to the occupational groups in these trade journals.In our study the results shows that the trade journal DIK-forum does not represent all the occupational groups at the same level.

In Sweden there is an integration policy and a policy for national minorities. The integration policy aims to integrate newly arrived immigrants (nyanlända invandrare), whereas the minority policy aims to maintain and strengthen the rights of the national minorities. The national minorities are though, at times, included into the integration policy, even though they hold a minority status in Sweden. This paper aims to, through discourse analysis, investigate the research question: ?how is the content of integration referred to, when it is related to immigrants, contra when it is related to national minorities?.

Syftet med denna undersökning har varit att studera gymnasieelevers förståelse för funktionsbegreppet.Den teoretiska utgångspunkten har varit att studera elevernas förmåga att växla mellanolika representationsformer och studera deras förståelse för relationen mellan de olika representationerna.Elevernas förmåga att resonera har också varit en väsentlig del och därför har forskningenkring matematiskt resonemang också varit en viktig del i arbetet. För att nå ett resultat har treklasser på gymnasiet fått skriva ett test konstruerat för att svara mot uppsatsens syfte. Utövertestet intervjuades tre av eleverna för att det skulle finnas möjlighet att fånga elevernas förmågaatt resonera. Resultatet kom att visa att vissa elever har svårt att utföra växlingar mellan vissaolika representationer, men mellan andra är det betydligt enklare. Det framkom att eleverna varskolade i ett algoritmiskt tänkande, och att eleverna hade svårt att resonera fritt och kreativt kringfunktionsbegreppet, samt att eleverna hade svårt att skilja de närliggande begreppen ekvation ochfunktion..

The study is a qualitative textual analysis comparing how two newspapers fromSmåland reacted to Nazi Germany during the interwar period. The purpose of the studyis to illustrate how newspapers' political orientation may influence its content. Theexamined material is limited to letters to the editor, editorials and columns. The twopapers are of different political orientations, Smålänningen is bourgeois andKronobergaren is social democratic. The theoretical basis is founded in Klas Åmarksperspective on Sweden's position in the war, the so-called small state realistic paradigmand the moral perspective, as well all Kosellecks theory about the written word.

Syftet med arbetet var att undersöka hur elever i skolår fyra interagerar och kommunicerar under problemlösning kring en öppen fråga i grupp, genom att uppmärksamma och göra en granskning av innehållet i kommunikationen. I arbetet användes ostrukturerad observation som metod. Dessutom användes enkät för att ta del av elevernas attityder till grupparbetet. Resultatet visade att 99 %, 637 av totalt 643 kommentarer, av kommunikationen handlade om själva uppgiften. Vidare visade resultatet även på vilka sätt eleverna bidrog till att lösa problemet.