Filtyp
Flying insects are able to negotiate complex environments such as tropical rainforests as well as less complex environments such as flowering meadows although little is known about how they avoid collisions while doing this. In this study, insect negotiation through holes was investigated using Bumblebees Bombus terrestris and Orchid bees Euglossa imperialis as test animals. This was done by allow
The aim of this study was to find out how discomycetes growing on European Marram grass, Ammophila arenaria (L.) Link, are distributed in relation to white and grey dunes. The result indicates that discomycetes are more common in the white dune area, but the difference was not statistically significant. The study also includes a genetic study of intraspecific variation in the species Albotricha ac
Ribonucleotide reductases (RNRs) are important enzymes that convert the building blocks of RNA (NTPs) into building blocks of DNA (dNTPs). dNTPs are used for synthesis of DNA as well as repair of mutated and damaged DNA. These cellular processes are critical to an organism. That is why these processes are found in various organisms. Since these processes are so essential, their allosteric regulati
Climate change is a problem. The power sector will bear the brunt of decarbonisation. The most cost effective pathways of achieving deep decarbonisation involve a diverse portfolio of energy technologies. A considerable body of theory suggests that the composition of finance can influence not only the rate but the direction of technical change by selecting technologies with certain economic charac
Water level variations occur in the Baltic Sea at many different scales in time and space due to a variety of forcing factors. This study aimed to investigate the water level variations on different scales, and further to investigate the relationship between those variations and their causing factors. Extended historical data series from the Swedish Meteorological and Hydrological Institute (SMHI)
In the face of climate change, hydrogen is an important energy carrier integral to the feasibility of the renewable energy mix. This techno-economic study aims to make an initial assessment of the potential of recycling heat and oxygen from an electrolyzer. The goal is to calculate the internal rate of return and payback time of investing in a 20 MW electrolyzer and necessary auxiliary equipment f
Loss of biodiversity is an immediate threat to the planet and if no actions are taken it is expected to accelerate. The highest species richness on smaller scale is found in semi-natural temperate grasslands, with one of the documented records from Stora Alvaret on Öland, Sweden. The area is protected under the Natura 2000-network and Länstyrelsen Kalmar are responsible for monitoring while local
The purpose of the Master Thesis is, on one hand, to develop a traction control system, integrating and implementing two controllers in the vehicle, each of them previously designed and tested separately, to test them together to evaluate their performance. On the other hand, to develop accurate and well-performing controllers, the data acquisition needs to be precise so parameters and devices nee
Terrorism is a widely discussed phenomenon, but still it remains an undefined term in international law. In media and every day language the term seems to include almost any kind of violence. This uncertainty surrounding the definition has led to a situation where the word terrorism is open to any interpretation. As a result terrorism is often viewed as 'violence of which we do not approve'
This thesis examines and analyses the relationship between the principle of complementarity and the principle of universal jurisdiction. The establishment of the International Criminal Court provides for the first time in history a permanent international criminal institution. One of the most important principles on which the ICC is built upon is the principle of complementarity. The road towards
Adenocarcinoma of the periampullary region is associated with poor prognosis and new prognostic and treatment predictive biomarkers are needed for improved treatment. Membranous expression of podocalyxin-like 1(PODXL), which is a cell-adhesion glycoprotein and stem cell marker, has been found to correlate with an aggressive tumour phenotype and adverse outcome in several cancer types. The aim of t
Our continuously changing global environment requires continuous and detailed monitoring for us to understand how ecosystems are structured and function in response to climatic changes. Understanding the arctic ecosystems is of particular importance (Oechel et al., 1997). Indeed, rather than in boreal and temperate regions, the forecasted climatic changes will be first and most pronounced in the A
The activities of tigecycline and comparative agents on staphylococci and enterococci isolated from patients at general hospital wards (GHWs) and intensive care units (ICUs) at 3 university hospitals in Sweden were investigated. Oxacillin disc diffusion and minimal inhibitory concentration with E-test were used. The presence of mecA, vanA or vanB genes was determined with PCR. Statistically signif
The clinical performance of two nucleic acid amplification assays targeting the cryptic plasmid and two assays targeting rRNA molecules in Chlamydia trachomatis was examined. First-catch urine samples from Malmoe, Sweden, were tested for C. trachomatis with the Abbott real-time PCR assay m2000 and an in-house PCR for the new variant strain of C. trachomatis with a deletion in the cryptic plasmid.
We investigated the transmission properties and the phenotypic effects of two mitochondrial plasmids in a population of the bladder campion, Silene vulgaris. In reciprocal crosses between plasmid-free and plasmid-carrying plants, no cases of paternal transmission or loss during maternal transmission were recorded. Neither was any transmission via pollen observed when plasmid-carrying plants of S,
Growth of the smooth muscle cells in the rat portal vein was induced by a partial ligation of the vessel. The ligation caused an increase in the transmural pressure and segments of the portal vein were investigated 6 weeks after the ligation. The spontaneous contractile activity of the ligated veins was similar to that of the control veins. In the ligated vessels the active force at optimal length
Object. Cerebral vasospasm following subarachnoid hemorrhage (SAH) leads to reduced cerebral blood flow (CBF) and to cerebral ischemia, in some cases even producing infarction and long-term disability. The goal of the present study was to investigate the hypothesis that inhibition of neurokinin-1 receptors (NK1Rs) by administration of L-822429 blunts the decrease in CBF as well as cerebrovascular
It has been proposed that impulse noise and continuous noise affect the inner ear differently and investigations have found impulse noise to be harmful to both the inner hair cells and the outer hair cells. Scanning electron microscopy and non-standard methods for statistical analysis have facilitated the evaluation of different types of morphological changes after exposure to various kinds of noi
