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Relationships among allotetraploid marsh orchids collectively assignable to Dactylorhiza majalis s.l. are exceptionally complex because of multiple origins, secondary hybridization with each other, and with their parental lineages, local adaptation, and genomic reorganization processes, all extending through time and space. We sampled 34 populations from Britain and Ireland in an attempt to simult

The vegetation history of the Faroe Islands has been investigated in numerous studies all broadly showing that the early-Holocene vegetation of the islands largely consisted of fellfield with gravely and rocky soils formed under a continental climate which shifted to an oceanic climate around 10,000 cal yr BP when grasses, sedges and finally shrubs began to dominant the islands. Here we present da

Popular Abstract in Swedish Tekniken för vitreoretinal kirurgi har utvecklats betydligt de senaste åren, både vad gäller metodik och instrumentering. Allt fler sjukdomstillstånd i näthinnan kan nu behandlas. För att utveckla dessa metoder vidare, och även öka kunskapen bakom verkningsmekanismen för deras effektivitet, är standardiserade djurmodeller där både funktion och histologi kan utvärderas aThe field of vitreoretinal surgery has expanded greatly over the last decades. A continuous refinement of surgical methods and instruments has increased the number of treatable retinal disorders. Vitrectomy, retinectomy and laser treatment are all part of the modern surgical arsenal. In order to further develop and refine these methods, and also to improve the knowledge of the mechanisms behind th

Popular Abstract in Swedish Denna avhandling är en sammanläggningsavhandling som består av fyra artiklar inom arbetsmarknadsområdet. Den första artikeln behandlar en personalförstärkning till arbetsförmedlingen. Metoden har bestått i att jämföra tre arbetsförmedlingskontor som erhållit stora personalförstärkningar med tre kontor som inte fått någon personalförstärkning alls. Resultaten tyder på atThis thesis results from four research projects. The issues addressed in the projects are different types of labour market information problems. The purpose of the first article is to contribute to a better empirical under- standning of how an increase of staff at the Public Employment Service affects job seekers. In 1987, the Swedish Government decided to grant the Labour Market Administration ex

Popular Abstract in Swedish Varför beslutar politiker ibland att vidta till synes effektlösa åtgärder? Varför uppstår ibland stora politiska konflikter i små frågor? I vanliga fall vidtar man en politisk åtgärd därför att man eftersträvar det konkreta resultatet av åtgärden. Symbolpolitik är när en politisk fråga blir viktig, inte beroende på vad den konkret innebär och leder till, utan på grund aSymbolic politics is the degree to which political decision-making is motivated, not by the tangible aspects of the decision, but by the interpretation of what the decision represents symbolically. While symbolic politics is widely recognized as an important aspect of political decision-making, the phenomenon is insufficiently explored in political science. The first aim of the present dissertatio

The recent and fossil pollen data obtained under the frame of the multi-disciplinary international El'gygytgyn Drilling Project represent a unique archive, which allows the testing of a range of pollen-based reconstruction approaches and the deciphering of changes in the regional vegetation and climate. In the current study we provide details of the biome reconstruction method applied to the late

Existential biography does not so much search for a logical development in a person’s life as for the opportunities to shape and choose between different paths. Instead of using identities, which are often ambiguous in the extreme, I follow the Swedish historian Henrik Rosengren in his use of different cultural identifications that together form an identity. Identifications are changeable and mani

In this paper, cultural transmission between Slavs and Scandinavians from ca 900 to 1250 is discussed. Cultural identity and identity negotiation through style are topics often studied in higher social strata of societies. Emblemic style is maintained and displayed in jewellery or other eye-catching parts of the material culture to distinguish oneself in relation to others. However, the constructi

Surface display in insect cells: Systems available for surface display that utilize bacterial phages are insufficient for displaying a number of eukaryotic proteins. By instead presenting proteins on the surface of eukaryotic cells or virus, some of these problems might be overcome. The baculovirus/insect cell system, which has a high expression rate and post-translational mashinery closely resemb

This article deals with the view on death and cure of dying persons in Scandinavia from the middle of the 19th century up to the present. In this period, there is a change from a Christian understanding of death as a transition to eternal life to the present, secularised attitude. This development was, however, not clear-cut. There was a trend towards secularisation but at the same time, there wer

Popular Abstract in Swedish Högt blodtryck, hypertoni, är en folksjukdom som ökar risken att insjukna i slaganfall och hjärtinfarkt. I flertalet fall är orsaken till hypertoni okänd och man talar då om primär hypertoni. Mellan 30 och 60% av blodtrycksvariationen i befolkningen bestäms av genetiska faktorer medan resten beror på omgivningsfaktorer. Primär hypertoni uppkommer sannolikt på grund av sGenetic factors are of importance for the development of primary hypertension (HT). Intrauterine growth retardation, salt sensitivity and insulin resistance are all characteristic features of individuals prone to develop HT. Monogenic forms of hypertension such as Liddle´s syndrome (LS) and Apparent Mineralocorticoid Excess (AME), and hypotension such as Gitelman´s syndrome (GIT) have recently bee

Popular Abstract in Swedish Den här avhandlingen handlar om studenter som samtalar och samarbetar i små grupper i en nätbaserad kurs. Studien har ett intresse av att beskriva och förstå de dialogiska processer, som uppstår i ett autentiskt nätbaserat samtal, vilket pågår under lång tid. Det handlar bland annat om att studera, hur deltagarna använder sig av de meningserbjudande, i form av deltagarnThis thesis investigates students' dialogue and collaboration when working in small groups in a netbased course. The aim is to describe and shed light on student's dialogue and collaboration in a computer-mediated communication working with a problem oriented task. Thus, the interest lies in student's engagement in the learning situation rather than on the learning outcomes. The research was carr

In this thesis the connection between coherence and reliability is investigated. The question may be phrased as follows: does the fact that a set of testimonies is coherent imply that the witnesses who have reported these testimonies are reliable? The same question may also be expressed in terms of beliefs: does the fact that a set of beliefs is coherent imply that the beliefs were reliably produc

Popular Abstract in Swedish Ökningen av växthusgaser i atmosfären har orsakat en global temperaturhöjning. Afrika anses vara en av de kontinenter som kan komma att bli mest utsatta av effekterna kring ökande temperaturer med mer frekventa torkor som följd. Satellitdata ger oss möjligheten att uppskatta biomassa över stora områden vilket i sin tur kan leda till att öka vår förståelse kring hur utbyWith the challenges Africa faces with respect to the predicted warming due to climate change, the continents role in the global carbon cycle has been increasingly recognized. Earth observing satellites have played a significant role in the study of vegetation, particularly in Africa where climate stations are sparse. Satellite data can provide the means to map plant primary production for monitori

Popular Abstract in Swedish Av de omkring 45 000 svenskar som årligen drabbas av cancer kommer ungefär hälften att botas, ofta med strålning som en del av behandlingen. Syftet med strålterapi är att oskadliggöra tumören, men utan att skada omgivande vävnad. Idealt vill man att stråldosen ska vara mycket hög i tumören, samtidigt som den är obefintlig i vävnaden runt omkring. Strålskador på frisk väIn many radiotherapy applications, true three-dimensional dosimetry with good spatial resolution that can be achieved in a single measurement would be of great value. Polymer gel dosimetry fulfils many of the demands on such a system. In this study, methods to facilitate the implementation of gel dosimetry have been investigated. A new type of polymer gel, for which the response to absorbed dose i

Popular Abstract in Swedish I Män, våld och moralarbete uppmärksammas hur män, som frivilligt sökt sig till verksamheter där det erbjuds behandling för våld i nära relationer, rapporterar om sina erfarenheter. Rapporteringarna består dels av svar på frågeformulär, dels genom deltagande i samtalsintervjuer. Författaren analyserar hur männen förklarar sina handlingar och gestaltar återberättade erfaMen, violence and moral work- Reports from help-seeking men at treatment centers working with violence in close relationships Men’s violence against women is an extensive social problem. In the 1970s, a new kind of centers were established in the US and UK, focusing on treating men who had been violent against their wives or girlfriends, the aim which is to end the men’s violent behavior. In the

ABSTRACT: BACKGROUND: Urothelial carcinoma (UC) is characterized by nonrandom chromosomal aberrations, varying from one or a few changes in early-stage and low-grade tumors, to highly rearranged karyotypes in muscle-invasive lesions. Recent array-CGH analyses have shed further light on the genomic changes underlying the neoplastic development of UC, and have facilitated the molecular delineation a

Popular Abstract in Swedish De fyra essäerna i Sickness Insurance: Design and Behavior studerar sjukförsäkringens utformning ur både ett empiriskt och ett teoretiskt perspektiv. Den första essän bygger på en enkätstudie och innehåller två delar. I den första delen undersöks människors preferenser för olika utformningar av sjukförsäkringen, där de olika utformningarna förväntas ge ungefär samma kosThe first essay presents the results from a questionnaire study of sickness insurance and sickness absence behavior in Sweden. In the first part, people’s preferences for the design of a sickness insurance are discussed. Three combinations of qualifying days and compensation rates, with approximately the same costs within the insurance system, are compared. From the questionnaire it is concluded t

Popular Abstract in Swedish Fotosyntesen är nödvändig för vårt liv på jordklotet. Fotosyntes utförs huvudsakligen av gröna växter och dessutom av vissa bakterier. Dessa organismer absorberar energin i solljuset och omvandlar den till kemisk energi i form av till exempel kolhydrater och fett som vi människor och djur sedan kan förbränna och utvinna energi ifrån. Fotosyntesen utförs av ett flertal pPSII catalyses the light-induced water splitting process which leads to electron transfer through the thylakoid membrane and formation of energy rich molecules. Several redox components including a Mn4Ca, an amino acid residueYZ, two special Chl molecules P680, two Pheo and two quinone molecules participate in this process. Another component of PSII which interacts magnetically with Mn4Ca is D2-Ty

The capacity of somatic cells and pollen grains or microspores to undergo embryogenesis is an important property used in improvement and regeneration of plants. Furthermore, somatic embryogenesis as well as pollen embryogenesis show many similarities with zygotic embryogenesis and are, thus, good model systems. Pollen suspensions of tobacco (Nicotiana tabacum L.) contain a mixture of embryogenic a