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.

The aim of this two years master?s thesis in Archive, Library and Museum Studies is to analyse how Swedish cultural history museums work to include LGBTQ-heritage (LGBT is the acronym for Lesbian, Gay, Bisexual, Transgender and Queer) in their collections. This work is articulated around three research questions. These interrogate museum practice about collecting and collection management, what it looks like in the already gathered collections as well as the implications such work implies on a broader level. The theoretical framework throughout the paper is gender and LGBT studies as well as queer theory.

Avdelningen för klinisk kemi vid Länssjukhuset i Kalmar analyserar läkemedel och alkoholer med BD Vacutainer® Plus Plastic Serum Tube (Serum Tube), som kräver en koagulationstid i upp till 60 minuter. BD Vacutainer® Rapid Serum Tube (RST?) innehåller trombin och kräver en koagulationstid på endast 5 minuter. Syftet med studien var att undersöka möjligheten att förkorta den preanalytiska väntetiden före centrifugering vid intoxikationsanalyser i serumrör från akutmottagningen. Studien utfördes genom att jämföra RST? med Serum Tube vid analys av S-Paracetamol och S-Etanol.

Mosquitoes are found in extremely large numbers in the lower parts of the River Dalälven. In the year 2000 the mosquito nuisance was especially high, resulting in foundation of the Biological mosquito control project. Since 2001 mosquito larvae are controlled by using a biological pesticide BTI (Bacillus thuringiensis ssp israelensis). The mosquito fauna in the area is dominated by flood water mosquitoes, a group of mosquitoes that are very aggressive and form new generations of mosquitoes during every single flooding event during the summer. To be able to efficiently control the mosquitoes it is essential to know the extension and locality of the flooding.

This paper aims to give an account of, and to discuss the view-points and theories of different researchers on the christianization of Sweden, especially the province of Öland, during the early middle ages. Its purpose is to investigate how, and in what sense, their positions can be said to correspond to what we may know of the historical ?facts?. This will be possible by comparing different points of view with a study of the development in a single parish. An overall difficulty however, is the nature of the sources relating to the time in question, they are scarce or even non-existent.Part I of the paper consists of an outline of the field of research and the different theories put forward on the subject.

Syfte: Syftet med denna systematiska ?versikt var att unders?ka effekten av medelhavskost p? HbA1c j?mf?rt med annan kost hos vuxna ? 18 ?r med prediabetes och diabetes typ 2. Metod: Litteraturs?kningen genomf?rdes den 29 mars 2023 i databaserna Scopus och Pubmed. Inklusionskriterier var vuxna ? 18 ?r med prediabetes eller diabetes typ 2, intervention och kontroll var medelhavskost j?mf?rt med annan kost och utfallsm?ttet var HbA1c. Vidare inklusionskriterier var RCT som studiedesign, studien skulle p?g? i minst tolv veckor, humanstudier samt studier gjorda p? svenska/engelska.

The aim of this study was to examine if the predictions of the herbage quality in the software Grazemore Decision Support System (DSS) gives a reliable ground for milk production in the north of Scandinavia. Pasture samples from one research farm (Umeå) and one organic farm (Nordingrå) was analysed on crude protein and organic matter digestibility. The results were statistically compared to the predicted values. Measured and predicted herbage mass was compared and a control if the predictions of milk production improved if the predicted input were replaced by the values from the analysis, was made. The concentration of crude protein was underestimated by the model on both farms and the relationship between actual and predicted values was poor. Mean Prediction Error (MPE) was 24% and 31% respectively.

The aim of this study is to investigate which communication strategies and channels the mu- nicipal company Falu Energi & Vatten should use in order to become more efficient in com- municating with citizens between 18 to 29 years old. The company is owned by the munici- pality of Falun and manages community services in electricity, district heating, fresh water, sewerage, metropolitan area network and waste disposal. The following theories have been used in the study: convergence culture, digital natives, information overload, communication strategies and uses & gratifications theory. The methods used in the study are 4 focus group interviews and one informant interview. The members of the focus groups where within the age range 18-29 years and lived in the city of Falun.

Sweden. 1980. The term ?video violence? becomes public through the debates show Studio S. The show urges and obligates politicians to stop, regulate and ban video films with violent content from the market.

The aim of this study was to seek knowledge about how the media audience interprets media representations of immigrants as well as the construction of ?us? and ?them? that is created from the media report.We implemented two focus group interviews, one containing only ethnical Swedes and one holding a variety of people with different ethnical backgrounds. The focus groups got to read nine news articles from different Swedish news papers selected by us, based upon previous research. These articles got to serve as the basis of the discussion.To supplement the focus groups, which got to represent the media audience, we also interviewed two different persons we choose to call informants, whom are both immigrants and are or have been politically active and often appear in local media.The interviews were our empirical material which was used for analysis. The method we used was qualitative analysis of meaning and was based upon a hermeneutic starting point, meaning that all humans are interpreting beings.

Idag finns få studier gällande könsskillnader inom hörselvården, däremot finns forskning inom andra vårdområden. Hörselvården består bland annat av rehabilitering, där den tekniska hörselrehabiliteringen är en stor del. Den innefattar främst utprovning av hörapparater och hörseltekniska hjälpmedel.    Syftet med denna studie är att undersöka om det finns några skillnader mellan män och kvinnor gällande den tekniska hörselrehabiliteringen.    Metoden för studien är kvantitativ och deskriptiv. En journalgenomgång inom ett enskilt landsting genomfördes. Totalt ingick patientjournaler för 56 personer i undersökningen.

Extensive planting of the tree species lodgepole pine (Pinus contorta var. latifolia) during the 1970s and 80s has resulted in large areas now being available for commercial thinning. However, the varying quality of the stands creates a problem. The purpose of this study was to investigate, at the Torsby district of the Stora Enso forest company, how well the present computer records of the stands correspond to reality and determine which stands are, from a qualitative perspective, suited for timber production. Finding variables that indicate better stands would give Stora Enso the possibility of selecting qualitative stands which are more profitable to thin. The study included 32 stands containing at least 70 % Pinus contorta.

Med en explorativ ansats syftar denna studie till att kartlägga samband och jämföra grupperingar bland klienter som fått genomföra en ASI-intervju hos Kriminalvården. Studien bygger på 2 317 intervjuer med fokus på missbruksproblematik, gjorda under perioden 2008-2010. Vi illustrerar grafiskt intressanta samband och tittar även på hur klienternas hjälpbehov varierar inom olika livsområden.Ytterligare en aspekt av studien är att utvärdera datamaterialets kvalitet samt att studera eventuellt bortfall för de olika variablerna. Materialet är av relativt god kvalitet och förekomst av respondenters vägran är inte tillräckligt omfattande för att påverka analyser och slutsatser. De felaktigheter som kunde konstateras härhör nästan uteslutande från tillvägagångssätt vid inmatning av data i systemet.

The aim of this study is to investigate which communication strategies and channels the mu- nicipal company Falu Energi & Vatten should use in order to become more efficient in com- municating with citizens between 18 to 29 years old. The company is owned by the munici- pality of Falun and manages community services in electricity, district heating, fresh water, sewerage, metropolitan area network and waste disposal. The following theories have been used in the study: convergence culture, digital natives, information overload, communication strategies and uses & gratifications theory. The methods used in the study are 4 focus group interviews and one informant interview. The members of the focus groups where within the age range 18-29 years and lived in the city of Falun.

Syfte: Syftet med denna systematiska ?versikt var att unders?ka medelhavskostens p?verkan p? grad av depression hos vuxna personer med depression. Metod: S?kningar utf?rdes i databaserna PubMed och Scopus under mars 2023. Inklusionskriterier var randomiserade kontrollerade studier, vuxna ?18 ?r med diagnostiserad depression enligt sj?lvskattningsformul?r eller medicinskt utl?tande. Utfallsm?ttet var grad av depressionssymtom m?tt med skalorna MADRS (Montgomery-?sberg Depression Rating Scale), BDI-II (Beck Depression Inventory II) eller DASS-21 (Depression Anxiety Stress Scale). Artiklar som inkluderat fler interventioner i sina studier ?n kostintervention eller artiklar som ej var skrivna p? engelska exkluderades. De studier som m?tte kriterierna inkluderades och kvalitetsgranskades enligt SBU:s (Statens beredning f?r medicinsk och social utv?rdering) granskningsmall ?Bed?mning av randomiserade studier ? effekt av att tilldelas intervention?.