Denna litteraturstudie har som syfte att undersöka hur skönlitteraturen legitimeras i svenskundervisning för årskurs 7-9 utifrån befintlig forskning inom ämnet. Studien tar sin utgångspunkt i följande två frågeställningar: Varför ska elever arbeta med skönlitteratur i skolan? Vad menar forskning att undervisning i skönlitteratur ska utveckla hos eleverna? Eftersom denna studie är en litteraturstudie har aktuell forskning valts ut utifrån bestämda begränsningar. Exempelvis har endast litteratur som berör den svenska skolan valts ut. Två doktorsavhandlingar utgör studiens huvudmaterial, därtill har fem titlar till använts för att diskutera skönlitteraturens syfte i skolan. Denna studie visar att arbetet med skönlitteratur ska fungera som verktyg för elevernas identitetsutveckling. Eleverna utvecklar sin förmåga att fylla textens tomrum med egna erfarenheter genom en subjektiv förankring. Eleven får då bearbeta sig själv och sitt liv genom litteraturen. Genom att läsa skönlitteratur utvecklas också den narrativa fantasin som gör att läsaren kommer att kunna anta andra människors perspektiv. Skönlitteraturen kan därför fungera som övergångsobjekt eller som en bro till andra människor, vilket också bidrar till att litteraturen kan lösa konflikter och som verktyg för att utveckla demokratiska värderingar. Slutligen kan också skönlitteratur läsas som språkutvecklande redskap. Det ställs höga krav på elevernas läsfärdigheter för att läsa skönlitteratur på ett djupare plan, därför krävs att skönlitteraturen inte läses helt oreflekterat och okritiskt för att uppnå sitt syfte enligt ovan. I klassrummet krävs diskussioner kring bland annat olika tolkningar och erfarenheter av texten men även diskussioner kring litteraturens sanningshalt och skillnad på fiktion och verklighet. Därför krävs också planering och uppgifter som uppmuntrar eleverna till att bli goda skönlitterära läsare. / <p>Svenska</p>

Syfte – Syftet är att identifiera förbättringsåtgärder i en returhanteringsprocess för produkter med kort livscykel. För att kunna bidra med förbättringsåtgärder till fallföretaget har tre frågeställningar formulerats för att uppnå detta: 1. Hur ser returhanteringsprocessen ut för produkter med kort livscykel? 2. Vilka utmaningar finns det i returhantering? 3. Hur kan processen effektiviseras? Metod – I samtal med fallföretaget och under litteraturstudie identifierades ett problemområde vilket blev grunden för studiens syfte och frågeställningar. Utefter detta genomfördes en enfallsstudie som bestod av observationer och en intervju. Författarna strävade efter en djupgående kunskap av ämnet och därför ansågs enfallsstudie vara lämpligast för studien och dess syfte. För att skapa en grund för hur ett returflöde och utmaningar ser ut byggdes ett teoretiskt ramverk upp baserat på en genomförd litteraturstudie. Tillsammans med den insamlade data och teori analyserades möjliga förbättringsåtgärder. Resultat – Genom att integrera data och teori har möjliga förbättringar kunnat identifierats. En rekommendation är att införa nyckelfunktionen gatekeeping tidigt i returflödet, vilket bidrar till att returer sorteras för att skapa värdeskapande processer i returflöde i en större utsträckning. För att effektivisera ett returflöde kan det analytiska ramverket vara till hjälp för företag samt att betydelsen av att utgå ifrån ett standardflöde. Implikationer – Teorin nämner bristande kunskap inom returhanteringsprocessen, vilket bekräftades av den insamlade empiri där returflödet kan visa en utformning som inte är helt optimalt för produkter med kort livscykel. Det här mynnade ut i att författarna valde att sammanföra två returteorier samt med ett lean perspektiv för att belysa en ny synvinkel med förväntningar att uppnå ett mer optimerat returflöde. Med den nya synvinkeln finns det möjlighet att identifiera värdeskapande processer vilket dagens produktlivscykler kräver för att de idag tenderar att bli kortare. Begränsningar – Studien begränsar sig till en enfallsstudie, vilket medför att trovärdigheten och generaliserbarheten blir lägre. Dock ser författarna fördelar med detta för att de tagit fram ett nytt analytiskt ramverk som först får empiriskt stöd genom denna studie. Vidare krävs det forskning om det analytiska ramverket genererar förbättringar för företag. / Purpose – The purpose of this thesis is to identify improvements in a returns flow for products with a short life cycle. Three research questions has been formulated in order to enhance the return flow: 1. How is the returns flow process built for products with short life cycle? 2. What are the challenges in the returns flow? 3. How can the returns process be improved? Method – In conversation with the case company and during the writers literature study a problem area was discovered. This established a foundation for the purpose and research questions. The study was performed as a case study which included observations and an interview. A case study was considered as the most appropriate method for this study since the writers aimed to gather profound knowledge within the subject. A theoretical framework was built upon the literature study to help the writers create an understanding of the returns flow and its challenges. Findings – To be able to identify possible improvements the study integrated data and theory. Recommendations based on this study is to introduce the function of gatekeeping in a returns flow, which contributes to a create a greater value in the returns flow. The analytical framework can help companies to implement better structures for their returns flow and the writers can also recommend to follow one standard which enables a more efficient return flow. Implications – The theory argue that the knowledge is lacking on how to manage a return flow, this is confirmed with the gathered data where the return flow is not designed to create efficiency. To tackle this issue, the writers choose to intertwine two returns flow theories together with a lean perspective. With the integration of these theories, this new viewpoint had the expectation to achieve a more optimal returns flow. This would also give the possibility to find the value creating processes within the returns flow and help to extract as much as possible of the product life cycle. Limitations – The study is limited to a case study, this entails that the credibility and the generalization is low. This is a disadvantage, but this study can be seen as a starting point and therefore the case study is the most suitable. The theoretical framework that is presented in the study also needs practical verification to earn credibility.

Supramolecular systems comprised of non-covalent interactions are reversible in nature. This intrinsic reversibility of these systems is essential in achieving several functions, making it crucial to understand the dynamics of supramolecular systems. However, studies on the dynamics of supramolecular systems have always lagged behind structural and thermodynamic characterization of innumerable supramolecular systems developed. The first objective of this work was to understand the dynamics leading to a shift in the acidity constant (pKa) for 2-aminoanthracenium cation (AH+) upon binding with cucurbit[7]uril (CB[7]) host molecule. The adiabatic deprotonation of free AH+ in water was found to be inhibited in the complex with CB[7]. Different spectral characteristics for the protonated and deprotonated form of the guest molecule were used to understand the mechanism of this pKa shift associated with the binding to CB[7]. The results suggested that the pKa shift upon binding with CB[7] is a result of the slowing down of the deprotonation step in the complex, whereas the association rate constant did not change very much. The second objective of this work was to understand the role of cations on the binding dynamics of the N-phenyl-2-naphthyl amine (Ph-A-Np) binding to CB[7]. Ph-A-Np has two binding sites, which can lead to 1:1 and 2:1 host-guest complexes. The results indicate a switch in the binding mechanism for Ph-A-Np at low and high concentration regimes of sodium ions. Sodium ion was found to reduce the binding affinity of the naphthyl group to CB[7] whereas the complex formed by the phenyl group with CB[7] bound to one sodium ion was found to be stabilized. The final objective of this work was to study how structural changes to a guest molecule can affect the binding dynamics for the formation of a 2:1 “capsule” like complex with octa acid (OA). The dissociation for the OA capsule with pyrene (Py) as the encapsulated guest was shown to happen in 2.7 s previously. Two pyrene derivatives, 1-methylpyrene (MePy) and 1-pyrenemethanol (PyMeOH) were chosen as guest molecules to study the effect of these substituents on pyrene on the capsule dissociation dynamics. The results show that the residence time for the guests in the OA capsule depends on the substituents. For PyMeOH and MePy a shorter and longer residence time respectively in the capsule was observed when compared to Py. / Graduate / 2019-09-30

The process of coset enumeration has become a significant factor in group theoretical investigations since the advent of modern computing power, but in some respects the process is still not well understood. This thesis investigates some features of coset enumeration, working mainly with the group F(2,7). Chapter 1 describes the characteristics of coset enumeration and algorithms used for it. A worked example of the method is provided. Chapter 2 discusses some features which would be desirable in computer programs for use in investigating the coset enumeration process itself, and reviews the Havas/Alford program which to date best meets the requirements. Chapter 3 deals with the use of coset ammeration in proofs, either in its own right or as a basis for other workings. An example of one attempt to obtain a proof by coset enumeration is given. Chapter 4 reviews techniques designed to reduce the length of coset enumerations and proposes the 'equality list' technique as a way to reduce enumeration length for some groups. Extra insights obtainable using the equality list method are also discussed. Chapter 5 summarises the factors by which the success of different coset enumerations can be compared and proposes an algorithm for making systematic comparisons among enumerations. Chapter 6 reports five coset enumerations, obtained manually by three main methods on the group F(2,7). All these enumerations were shorter than is so far obtainable by machine and one is shorter than other known hand enumerations. The enumerations were compared by applying the process developed in Chapter 5. Chapter 7 presents a shorter proof of the cyclicity of the group F(2,7) than was hitherto available. The proof derives from the workings for one of the coset enumerations described in Chapter 6. There are eight appendices and an annotated bibliography. The appendices contain, inter alia, edited correspondence between well-known coset-enumerators, a guide to the Havas/Alford program, further details on the equality list method and listings of various enumerations.

In 1980, the A.C.T. Schools' Authority through the curriculum development section together with its curriculum consultants, helped to initiate and develop a pilot programme In relation to Year 6 students about to proceed to Year 7. This programme was made possible by the co-operative participation of both primary and secondary schools, their principals and staffs. The programme aimed at building bridges between primary and secondary schools, between primary and secondary teachers and between the curriculum of primary and secondary schools. This study began, as has been said,.where a Pilot Programme introduced by the A.C.T. Schools' Authority, by its Curriculum Development Section, left off. It aimed to explore further the nature of the 'day to day' reality experienced by some Year 6 students in the Australian Capital Territory. In addition, it aimed to explore and gain insights into the process of transition by following up those students who had been part of the sample in Year 6. It includes individual perceptions of the process. In designing research instruments and investigating the process of transition, certain theoretical concepts drawn from both psychology and sociology were used to crystallise the observations made. In addition, earlier studies concerning transition were assessed as well as those in related areas. In the process of this field study, many observations were made, some contradictory, and generally the field study seems to have raised as many questions as it has answered. As might have been expected, any study dealing with human reaction is complex-more so when there are different types of institutions to be considered. Nonetheless it is only apparently inconclusive enquiries like this which will add to the store of knowledge and allow assumptions to be replaced by more precise data.

This thesis reports on a study which made an analysis of the new Grade 7 social science syllabus textbooks that are currently being implemented in the high schools of Papua New Guinea. Data relating to these textbooks has been gathered from the teachers who are teaching the course and their Regional Secondary Inspectors. The data was basically obtained through postal questionnaires. The basic aim of the study was to find out how the syllabus materials are received and used in the implementation process. The study also attempted to identify the problems and difficulties the teachers encountered and the concerns they had about the new course. The study revealed some interesting results. For example, there are some teachers of social sciences in the high schools who do not have secondary teaching qualifications, the level of English language used, which was one of the major problems identified with the old syllabus, has not been completely overcome, the problems, difficulties and concerns identified by this study differ from school to school and between rural and urban schools. In addition, the study also identified many practical problems, difficulties and concerns which affect the effective and successful implementation of the syllabus. These include the need for additional support such as reference materials both for teachers and students and a need for more short in-service courses to resocialise teachers in order to change their classroom culture and thus facilitate change.

<p>Spinocerebellar ataxia type 7 (SCA7) is a neurodegenerative disease characterized by cerebellar ataxia and visual problems due to a progressive and selective loss of neurons within the cerebellum, brainstem and retina. The disease is caused by the expansion of a CAG repeat in the first coding exon of the SCA7 gene, resulting in an expanded polyglutamine domain in the N-terminal part of ataxin-7, a protein of unknown function.</p><p>To expand our knowledge of the ataxin-7 protein and the mechanism by which mutant ataxin-7 causes disease, we have studied the expression and function of both the normal and the mutated ataxin-7 protein. </p><p>Ataxin-7 expression was examination in brain and non-CNS tissues from SCA7 patients and age-matched controls. Expression was predominantly nuclear in neurons throughout the brain of both healthy and SCA7 individuals. We also observed aggregation of mutant ataxin-7 in the nuclei of neurons. No obvious difference in the expression level of ataxin-7 or the formation of aggregates could be observed between affected and non-affected brain regions in SCA7 patients. Based on these findings, we could conclude that the cell type specific neurodegeneration in SCA7 is not due to differences in expression levels or to the formation of ataxin-7 aggregates.</p><p>To widen our studies on ataxin-7 expression, we isolated and characterized the mouse SCA7 gene homolog. Cloning of the mouse SCA7 gene revealed two SCA7 mRNA isoforms that were highly homologous to their human counterparts. Immunohistochemical analysis also revealed a conserved expression pattern of ataxin-7 in adult mouse brain. In addition, ataxin-7 expression was observed during embryonic development in brain as well as in several non-neuronal tissues such as heart, liver and lung. </p><p>Besides SCA7, eight neurodegenerative disorders are known to be caused by expanded polyglutamine repeats, including SCA 1-3, 6 and 17, DRPLA, SBMA and Huntington’s disease. The polyglutamine disorders have many features in common and a common pathological disease mechanism involving transcriptional dysregulation has been proposed. To investigate the possible involvement of transcriptional dysregulation in SCA7 pathology, we analyzed the effects of both wild-type and expanded ataxin-7 on transcription driven by the co-activator CBP, the Purkinje cell-expressed nuclear receptor RORα1 or a basic TATA promoter. As previously shown for other polyglutamine disease proteins, expansion of the polyglutamine domain in ataxin-7 leads to reduced transcription. Surprisingly, strong repression of CBP-mediated, RORα1-mediated and basal transcription was also observed with wild-type ataxin-7, suggesting that the normal ataxin-7 protein may have a role in transcriptional regulation. </p>

<p>I en rapport från Skolverket framkommer att elever uppger att de lär sig mest och bäst när matematiken är relevant och begriplig, verklighetsanknuten samt då undervisningen är varierad, flexibel och där monotona räkningar undviks (Skolverket 2003). Skulle kanske då utomhusmatematiken kunna vara ytterligare en metod för att förklara problem för elever, ge matematiken en verklighetsanknytning och samtidigt skapa variation i undervisningen? </p><p>Det jag vill uppnå i arbetet är att beskriva hur utomhusmatematik kan användas som ett komplement till ordinarie matematikundervisning, sett ur ett lärarperspektiv. Detta har jag försökt svara på genom att ställa frågorna; Hur beskriver och resonerar undervisande lärare i grundskolans senare år om utomhusmatematik och elevernas lärande? Vilka faktorer påverkar/avgör om lärare använder sig av utomhusmatematik samt vilka utomhusmatematiska övningar ger lärarna exempel på? Jag har utgått från en explorativ ansats med ett hermeneutiskt perspektiv och som metod har jag använt mig av kvalitativa intervjuer där jag intervjuat sex lärare för att få svar på mina frågeställningar. </p><p>Resultatet visar att utomhusmatematik är ett arbetssätt där man använder sig av praktiska och konkreta matematikövningar som är verklighetsanknutna och som utförs utomhus. Majoriteten av eleverna tycker att det är positivt med utomhusmatematik och lärarna ser att elevernas lärande påverkas både direkt och indirekt. Några av de fördelar som nämnts är att eleverna använder fler sinnen vilket leder till ett annat tänkande som kan ge fördjupade kunskaper samtidigt som eleverna upptäcker vad matematiken kan användas till utanför klassrummet. Nackdelar finns, dels de som är påverkbara för läraren som exempelvis att det krävs vana för att utomhusmatematik ska ge bra resultat, dels de som är svåra att påverka för läraren till exempel schemat och skolkoden på skolan. Utomhusmatematiska övningar går att använda i ett flertal områden inom grundskolans matematik.</p>

No description available.

<p>This thesis deals with the atmospheric distribution of the cosmogenic isotopes ⁷Be (half-life 53 days) and ¹⁰Be (half-life 1.51 million years) as well as the anthropogenic isotope ¹³⁷Cs (half-life 30 years) in aerosols and precipitation. Samples covering continuous or selected parts of the period 1972-2005 in Sweden and Europe are evaluated with respect to production, air mass transport and fallout processes. Such information is valuable in assessing the potential of these isotopes as indicators of air mass mixing and solar modulation factors that affect climate change. The results of ⁷Be and ¹⁰Be show seasonal variability and an 11-year cyclic pattern which is anti-correlated with the solar activity. Variations in seasonal trends of ⁷Be and ¹³⁷Cs in aerosols during the post- and pre-Chernobyl period reflect tropospheric influence from ¹³⁷Cs-heavily contaminated regions. A clear latitude dependence is observed in our beryllium isotope data where highest fallout is found in mid-latitudes compared to high and low latitude regions in the Northern hemisphere. This pattern reflects the general air mass circulation in the troposphere. However, stratospheric air mass influence was also identified in mainly single events and through tropopause folding during spring-summer seasons. The ratio of ¹⁰Be/⁷Be is used to estimate effects of air mass transport on production signal. The results show ratios between 1 and 3, much higher than the theoretically predicted value (0.6) in the atmosphere, which suggests contribution from ⁷Be-depleted (old) air masses. The relationship between monthly ⁷Be atmospheric activity and Total Fractional Cloud Cover (TFCC), collected from satellite imagery, over Sweden for the years (1991-2000) indicates a negative seasonal correlation. This observation can be related to depletion of aerosol from the atmosphere due to trapping in clouds. </p>