Filetype
Unmanned vehicles need robust systems to ensure the safety of the vehicle and its environment. Being able to find and avoid perilous situations is paramount to such a system. In this paper we suggest an unsupervised image-based anomaly detection algorithm using a variational autoencoder and a superpixel segmentation algorithm, which is adapted to the maritime obstacle detection task. The algorithm
Bombus terrestris is one of the most commonly used insect models to investigate visually guided behavior and spatial vision in particular. Two fundamental measures of spatial vision are spatial resolution and contrast sensitivity. In this study, we report the threshold of spatial resolution in B. terrestris and characterize the contrast sensitivity function of the bumblebee visual system for a dua
The purpose of this study was to develop techniques to quantify the propagation pattern of the electrical activation during atrial fibrillation (AF) along a one-dimensional catheter. Taking intra-atrial signal organization aspects into account, the atrial activations are detected and combined into wavefronts. Parameters describing wavefront consistency and activation order along the catheter are d
In this study we investigated the potential neuroprotective effect of 2-oxoglutarate (2-OG) on the hippocampus in the transient vessel occlusion ischemia model in the Mongolian gerbil. The morphological and biochemical studies were performed at 7 days after occlusion of carotid arteries. The acute reduction of NeuN-positive neurons in the CA1 pyramidal layer of the hippocampus was accompanied by i
Several studies have shown excess risk for a number of comorbidities in patients with psoriasis compared with the general population, but data on cause-specific mortality in this patient population are limited. The aim of this study was to estimate the associations of psoriasis and 12 specific causes of death and all-cause mortality in patients with mild and severe psoriasis. The study was based o
A measurement is presented of the cross section for the production of a W boson with one or two jets, of which at least one must be a b-jet, in pp collisions at root s = 7 TeV. Production via top decay is not included in the signal definition. The measurement is based on 35 pb(-1) of data collected with the ATLAS detector at the LHC. The W + b-jet cross section is defined for jets reconstructed wi
The crystal structures of the binary cadmium-rich complex metal alloys NiCd6+delta (-0.32 <= delta <= 0.35) and NiCd1+delta (0 <= d <= 0.05) were studied by means of single crystal X-ray diffraction. The partitioning of the NiCd6+delta structure into clusters grouped around all 16 high symmetry points of the face centered cubic cell leads to the identification of two partial structures forming rep
To identify susceptibility loci for classical Hodgkin's lymphoma (cHL), we conducted a genome-wide association study of 589 individuals with cHL (cases) and 5,199 controls with validation in four independent samples totaling 2,057 cases and 3,416 controls. We identified three new susceptibility loci at 2p16.1 (rs1432295, REL, odds ratio (OR) = 1.22, combined P = 1.91 x 10(-8)), 8q24.21 (rs2019960,
Party polarization research at the academic level has been limited so far compared to media coverage. Nonetheless, there is increasing academic attention on the effects of polarization on policy intensity. This study aims to analyse the impact party polarization has on the government response carried out in the EU countries during Covid-19. The specialized literature study how political polarizati
In the present work, the formation of complex coacervate micelles and aggregates of the oppositely charged diblock copolymers poly(N-isopropylacrylamide)27-b-poly((3-acrylamidopropyl)trimethylammoniumchloride)15 [PNIPAAM27-b-PAMPTMA15(+)] and poly(N-isopropylacrylamide)27-b-poly(2-acrylamido-2-methyl-1-propanesulfonic sodium)15 [PNIPAAM27-b-PAMPS15(-)] in aqueous solution have been studied at diff
Tramways are a sustainable and accessible mode for public transport. They promote urban development and contribute to a more attractive city. Light rail, but also public transport as a whole, is an important part of society as it is accessible to everyone and reduces the amount of cars needed. The two tramlines in Norrköping account for two thirds of public transport travel in the city. The purpos
The aim of the present work is to introduce an innovative framework for employing 3D-GIS as an exploratory platform to perform visual analysis. Such a methodology is aimed at detecting patterns of visibility to simulate the past human perception of specific categories of artifacts placed inside a virtually reconstructed three-dimensional space. As a case study, the house of Caecilius Iucundus in P
My thesis brings up the subject of power. In the 33 local authorities we have in Skåne, I have made a quantitative study, to see how many young people that are included in the power of politics, through local authorities parliament. This is the first of the two parts that I have devided my thesis into. The second part is qualitative and examines four young politicians, and their thoughts on holdin
The aim of this study was to investigate a possible relationship between depression and memory performance, hypothesizing a decrease in performance among participants with depression tendencies. The cognitive memory task of pattern separation was tested with four different levels of difficulty by use of a computerized memory test and the self-rating MADRS-S depression scale was used to assess the
The present work was conducted to study the cellular composition and developmental capacity of retinal neurospheres. Furthermore, the ability of grafted neurospheres to integrate into adult retinal tissue was studied in an in vitro model. Retinal progenitor cells isolated from rat embryos were expanded into neurospheres in vitro in the presence of basic fibroblast growth factor (bFGF), epidermal g
The aim of this dissertation is to examine the institutional changes which occurred in Chile under the military regime from 1973-1981, and how these changes can be related to subsequent economic development in the country. The empirical material comprises of an investigation of the new economic policy in the agricultural sector, the political process behind this policy and the social and economic
