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In this paper, we analyse in detail two famous space weather events; a railway problem on 13-14 July 1982 and a power blackout on 30 October 2003. Both occurred in Sweden during very intensive space weather storms and each of them a few years after the sunspot maximum. This paper provides a description of the conditions on the Sun and in the solar wind leading to the two GIC events on the ground.
Charged Higgs bosons heavier than the top quark and decaying via H± → tb are searched for in proton-proton collisions measured with the ATLAS experiment at (Formula presented.) TeV corresponding to an integrated luminosity of 20.3fb−1. The production of a charged Higgs boson in association with a top quark, gb → tH±, is explored in the mass range 200 to 600 GeV using multi-jet final states with on
Affinity-based solid-phase extraction (SPE) is an attractive low-cost sample preparation strategy for biomarker analysis. Molecularly imprinted polymers (MIPs) as affinity sorbents offer unique opportunities for affinity SPE, due to their low manufacturing cost and high robustness. A limitation is the prediction of their affinity; therefore, screening of analyte recovery and specificity within a l
Background: The rising prevalence of obesity represents an important public health issue. An assessment of its costs may be useful in providing recommendations for policy and decision makers. This systematic review aimed to assess the economic burden of obesity and to identify, measure and describe the different obesity-related diseases included in the selected studies. Methods: A systematic liter
The Cherenkov Telescope Array (CTA), will be the major global observatoryfor very high-energy (VHE) gamma-ray astronomy over the next decadeand beyond. The scientific potential of CTA is extremely broad: fromunderstanding the role of relativistic cosmic particles to the search for darkmatter. CTA is an explorer of the extreme universe, probing environmentsfrom the immediate neighbourhood of black
The applicability of the Weibull distribution to model the strength of glass, the existence of a size effect on the strength and the need for a non-destructive testing of the strength are discussed and reviewed. There are a growing number of studies that put into question the applicability of the Weibull distribution to model annealed glass fracture data. A recent study indicates that the breakage
It is important to study the factors affecting estimates of wetness since wetness is crucial in climate change studies. The availability of digital elevation models (DEMs) generated with high resolution data is increasing, and their use is expanding. LIDAR earth elevation data have been used to create several DEMs with different resolutions, using various interpolation parameters, in order to comp
The overall aim of this thesis was to describe parent’s experiences, reactions and needs in connection with a routine ultrasound examination during pregnancy when the foetus was found to have an abnormal ultrasound finding. The data collection began in February 2005 and the one year cohort study was completed by March 2006. The participants in this study were each asked if they would also consid
Oxyfuel process is a promising technique for carbon capture and storage, and a new application of perovskite-type oxide is as oxygen carrier for CO2 capture in oxy-fuel combustion system. This study proposed a novelty process and an optimization study on the synthesis of the BaCoO3-delta perovskite powders using microwave-assisted EDTA method. OA(16) (4(5)) orthogonal experiments were employed to
The performance of traditional continuous-time (CT) delta-sigma analog-to-digital converters (ADCs) is limited by their large sensitivity to feedback pulse-width variations caused by clock jitter in their feedback digital-to-analog converters (DACs). To mitigate that effect, we propose a modified switched-capacitor (SC) feedback DAC technique, with a variable switched series resistor (SR). The arc
The neuropeptide vasoactive intestinal polypeptide (VIP), which is found in a population of cholinergic parasympathetic neurons in the airways, has no effects per se on mucociliary activity. In order to test the hypothesis that VIP may modulate cholinergic regulation of the mucociliary system, VIP was infused intraarterially (8.4 pmol/kg/min), and the response to challenges with methacholine in th
Popular Abstract in Swedish Denna avhandling utforskar och analyserar segregation och självsortering i utbildning. Den syftar till att diskutera hur detta relateras till genus, individualisering och unga mäns och kvinnors positioneringar i lokala praktiker, genom val av gymnasieutbildning. Den fokuserar hur unga män och kvinnor hanterar och anpssar sig till det förändrade senmoderna samhället. AvThis thesis explores and analyzes segregation and self-sorting in education. It aims at discussing how this relates to gender, individualization and young men and women's positionings in local practices, through choices of upper secondary school education. It focuses on how young men and women cope with and adapt to the changing society in late modernity. The thesis is based on three empirical st
Sweden has experienced many geomagnetically induced current (GIC) events in the past, which is obviously due to the high-latitude location of the country. The largest GIC, almost 300 A, was measured in southern Sweden in the earthing lead of a 400 kV transformer neutral during the magnetic storm on 6 April 2000. On 30 October 2003, the city of Malmo at the southern coast suffered from a power blac
Cystatin F is a recently discovered type II cystatin expressed almost exclusively in immune cells. It is present intracellularly in lysosome-like vesicles, which suggests a potential role in regulating papain-like cathepsins involved in antigen presentation. Therefore, interactions of cystatin F with several of its potential targets, cathepsins F, K, V, S, H, X and C, were studied in vitro. Cystat
Abstract in Norwegian Bakgrunn. Fallulykker er et viktig helseproblem hos eldre. Både balansetesting og registrering av egenrapportert funksjon kan være måter å forutse fremtidige ulykker på. Materiale og metode. I en kohortstudie ble egenrapportert gangfunksjon kartlagt hos 307 tilfeldig utvalgte hjemmeboende kvinner 75 år og eldre. Kvinnene gjennomgikk også testing av balanse og gangfunksjon, oBACKGROUND: Falls represent an important health problem among the elderly. Balance testing as well as registration of self-reported balance problems may be appropriate in order to predict the risk of future falls. MATERIALS AND METHODS: Self-reported walking was assessed in 307 randomly selected women 75 years or older living at home. The women underwent testing of gait and balance and were follow
The long-acting beta 2-agonist salmeterol has been shown in several in vitro studies to produce non-beta-mediated relaxant effects. The aim of the present study was to investigate whether these effects have any relevance in humans in vivo. Thirteen healthy individuals were studied in a randomized, double-blind, cross-over study on five separate days. The subjects were pre-treated orally with eithe
The transition towards low-carbon energy systems undeniably requires a strong scale-up in the diffusion of renewable energy technologies globally. Given its theoretical and techno-economic potential, solar photovoltaics (PV) is considered an important option. The envisioned scale-up of the use of solar PV, however, requires an in-depth and system-oriented perspective on structures and processes re
The effect of electron-beam patterning on the water uptake and ionic conductivity of Nafion films using a combination of X-ray photoelectron spectroscopy, quartz crystal microbalance studies, neutron reflectometry, and impedance spectroscopy is reported. The aim is to further characterize the nanoscale patterned Nafion structures recently used as a key element in novel ion-to-electron transducers
