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Staying aloft when hovering and flying slowly is demanding. According to quasi-steady-state aerodynamic theory, slow-flying vertebrates should not be able to generate enough lift to remain aloft. Therefore, unsteady aerodynamic mechanisms to enhance lift production have been proposed. Using digital particle image velocimetry, we showed that a small nectar-feeding bat is able to increase lift by as
AIMS: The monophasic action potential (MAP) is conventionally recorded using Ag-AgCl electrodes which are not suitable for delivering radiofrequency currents. To be able to use the sharp MAP upstroke for identifying the local activation, as a step towards the development of a MAP-guided catheter ablation technique, the possibility of recording MAP via platinum electrodes of an ordinary ablation ca
OBJECTIVE: The initiating events in the onset of pancreatitis are poorly understood. Possible candidates may be endogenous ligands, acting on receptors within ductal, acinar or stellate cells, which have previously been shown to cause a systemic inflammatory response syndrome. The aim of this study was to investigate whether acute pancreatitis could be induced by heparan sulphate (HS)infused into
Objectives: Pentraxin 3 (PTX3) is a locally produced multifunctional protein involved in inflammation, matrix deposition, and immunity. As patients with seropositive rheumatoid arthritis (RA) have a more severe disease course and higher risk of joint destruction than seronegative patients, the aim of the present study was to examine differences in PTX3 in synovial fluid (SF) (and serum) in seropos
Spatially segregated ecosystems are frequently subsidized by cross-habitat linkages, but the extent to which the functional links between habitats influence local community attributes, such as consumer and food web structure is still poorly understood. Using the bidirectional linkage between benthic and pelagic habitats in floodplain lakes, we address this important question by looking for evidenc
Denna studie ämnar öka kunskapen om hur kommunikativ likriktning mellan institutioner upprätthåller etablerade föreställningar om hållbar utveckling i samhället. Från ett socialkonstruktionistiskt perspektiv analyseras hur FN konstruerar diskurser kring hållbarhet i Agenda 2030 samt om dessa diskurser reproduceras i Helsingborgs stads hållbarhetskommunikation. Vidare undersöks hur hållbarhetsdiskuThe aim of this study is to increase the knowledge of how communicative standardisation between institutions upholds established notions about sustainable development in society. With a social constructionist approach, we analyse how sustainability discourses are constructed within the Agenda 2030, and if these discourses are reproduced in the sustainability communication of the city of Helsingbor
This thesis is a case study of the energy consumption of similar warehouses in different geographic locations. The purpose is to examine how to reduce the effect of the climate so that other parameters that control energy consumption in warehouse type buildings can be explored. Further the problem is explored with different organization that can come across such a problem. The rapport uses degree
This thesis builds on a case study of the car sharing company Volvo Car Mobility within the city of Stockholm, with the main purpose to answer how car sharing business models operate to enable socio-technical transitions in relation to transportation. The thesis stems from three sub-questions related to how the company captures value, how the city of Stockholm encourage mobility services and what
Oroande trend för svenska blåhakar Blåhakern är en karaktärsart i svenska fjällen och de flesta vandrare med öra för fågelsång har nog hört denna häpnadsväckande fågel sjunga bland fjällbjörkar eller på fjällheden. Studier från bl a Finland har visat att nordliga långflyttare såsom blåhaken har visat sig särskild sårbara för effekter av den pågående klimatförändringen. Tundran, däribland de svensArctic ecosystems are among the most vulnerable to climate warming due to large-scale changes in temperature, followed by altered community structure. Northern birds are subject to population reduction and range contraction in Europe and many mountainous birds show negative trends. Even if global trends are clear, local studies on a detailed level are needed to obtain more information on possible
The global COVID-19 pandemic is having tremendous adverse effects on human well-being and the tourism industry, revealing its high vulnerability, and putting the current system into question. A promising more sustainable tourism concept constitutes ecotourism albeit its impacts on residents’ well-being remain unexplored. Addressing this research gap, a qualitative in-field case study was conducted
Från linjär till cirkulär offentlig upphandling - En fallstudie av fem kommuner och deras arbete och vad som står i vägen för utvecklingen Vårt levnadssätt där linjär ekonomi med slit och släng är norm är ohållbart för att uppnå klimatmålen och målen i agenda 2030. Offentlig upphandling har en stor roll i denna omställning och kan med hjälp av rätt strategier börja göra upphandlingar med produkterSwedish municipalities can play a key role in contributing to the circular economy through public procurement as this is responsible for the emission of 23 million tons of carbon dioxide each year. Previous studies indicate that there is a need of developing dialogues involving all actors to increase the knowledge concerning why circular products are needed. The aim of this study was to investigat
Destination image is a concept that can be interpreted in different ways. Image sender and receiver may perceive different images due to diverse information sources, purposes, goals and so on. This thesis is going to explore the destination image held by different stakeholders. From demand perspective, how tourists view the destination image; from supply aspect, how destination authority attempts
Denna studie, som bygger på den kvalitativa metoden, avser att skapa förståelse för hur pedagoger arbetar med undervisning i ämnet svenskundervisning för invandrare genom användandet av sång och musik i språkinlärning. Mitt intresse för ämnet förstärktes när jag blev kontaktperson till en tjej som hade invandrat till Sverige från Chile. Studien är menad att ge läsaren inte bara en bild av hur man Swedish through singing: a shortcut to language learning? This study, based on the qualitative method, is meant to give an understanding of how pedagogues perform their teaching of the subject “Svenska för invandrare” (eng. “Swedish for immigrants”) by using singing in language training. My own interest in the subject was enhanced when I was appointed contact for a girl who had immigrated to Swede
Study objectives: The aim was to investigate which religious theological notions forms the background of action by the christian staff within a multireligious workcollective. Method: The sample was drawn from a focusgroup colloquium and one individual interview. The focusgroup consisted of seven people that are members of different protestant churches such as Evangeliska frikyrkan, Svenska kyrkan,
Rural development on the island of Gotland has been in decline for years. In the year 2011/12, two uprisings were triggered. The first, the “Countryside Uprisings” was started against the local authority’s move to shut down 11 schools in the countryside and the second, the “Gotlandic Uprising” was against the high cost of ferry travel between Got-land and the Swedish mainland. The undercurrent of
Popular Abstract in Swedish Avhandlingen består av fem stycken artiklar som analyserar och estimerar finansiella prisprocesser. Alla artiklarna handlar också om stokastiska volatilitetsprocesser som estimeras med Bayesiansk statistik och Markov Chain Monte Carlo (MCMC) metoder. Det första pappret utvecklar en modell för att mäta den amerikanska och de regionala europeiska aktiemarknadernas påverkThis dissertation consists of five papers concerned with the estimation and analysis of financial price processes. The first paper develops a stock price model and analyzes the impact of the US and the regional European stock markets on the local European countries’ stock markets. Among several things, we find that the dependencies among the stock markets do not increase during periods of distress
Author: Li Hallengren Title: Victim-offender mediation – What will come out of it? Socialworkers and policemen discuss victim-offender mediation. [translated title] Supervisor: Claes Levin Assessor: The purpose of this qualitative study was to examine how the work with victim-offender mediation is practised in Sweden and why it is practised in a certain way. Socialworkers and policemen play an im
Regional, national and global cities are disproportionately located on small islands and archipelagos. The spatial turn' within island and urban geography increasingly privileges abstract notions of space, yet the prevalence of big cities on small islands suggests that sensitivity to place-specific spatial factors is necessary if we are to understand both islands and the urban. Whereas previous st
Wetland creation aiming at a simultaneous increase in nutrient retention and species diversity in agricultural landscapes has recently become applied as a catchment-scale compensation measure for past wetland losses. Here, we evaluate if, and to what extend, dual-purpose wetlands benefit local and regional diversity of agricultural landscapes. We analysed composition and alpha, beta, and gamma div
