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In the last decades, the frequency and intensity of cyanobacterial blooms have been of increasing concern. They have become a direct threat to the drinking water supply by clogging filters, bringing odour and unpleasant taste to the treated water and worst of all, causing elevated cyanotoxins, which can be difficult to remove, yet lead to severe health issues. This thesis aims to present a compreh
Sweden is considered an environmental sustainability pioneer, targeting a 50% reduction in energy use in buildings by 2050. This ambitious goal requires the active engagement of municipal actors and the building sector. Dialogue processes have been identified as a way to mobilize such engagement, but in earlier research, there has been a lack of studies where dialogue practices are analyzed in rea
The sub-cell-fix (SCF) method proposed by Russo and Smereka(3) computes the distance function of the cells adjacent to the zero level-set without disturbing the original zero level-set. A modified sub-cell-fix scheme independent of local curvature is developed in this paper, which makes use of a combination of the points adjacent to zero level-set surfaces and preserves the interface in a second-o
The ISO standard tapping machine, used as an excitation source in rating the impact-sound level of a floor structure, interacts with the floor structure during the hammer impact. Expressions for the force spectrum due to the impact are presented. The 6 dB difference at low frequencies of the force spectrum, evident in measurements, and reasons for it, are discussed. The interaction is investigated
This study deals with technological capability building of local auto parts firms in Malaysia and Thailand during the period 1960-2000. Malaysia introduced a national car programme in 1985 while Thailand has maintained its liberal economic policy and relies on foreign multinational automakers to operate in the country. The study focuses on an empirical survey of 41 and 42 local auto parts firms in
This thesis contributes to the ongoing debate about livelihood diversifi cation and the related question of agriculture’s central role in rural development in the Sahel. It focuses on on-farm diversifi cation during the dry season. The aim is to assess the practice and potential of gum arabic production for smallholders in central Sudan. The agricultural system of gum arabic production has provide
Popular Abstract in Swedish Intensifieringen av jordbruket under de senaste sextio åren har resulterat i en dramatisk produktionsökning av framförallt spannmål. Denna typ av produktion, speciellt det mest intensiva s.k. industrijordbruket, har samtidigt också resulterat i en ohållbar degradering av ekosystemen och miljön, till exempel förlust av biologisk mångfald, utsläpp av växthusgaser, förgiftSeveral studies have found that organic farms support higher biodiversity, but results vary between studies such that some also show no or even negative effects. There can be many reasons why studies comparing organic and conventional farming show conflicting results. The efficacy of organic farming can depend on focal taxa, landscape context, study scale and the proportion of organically managed
Popular Abstract in Swedish Cancer i levern kan vara av två typer - antingen kan den ha sitt ursprung från levern och kallas primär levercancer eller också är den en spridning av tumör till levern från en annan plats i kroppen, s k dottersvulst eller metastas. Idag är kirurgi av tumörer i levern förstahandsbehandling, men tyvärr är det bara 1/10 patienter som har tumör i levern som kan bli aktuellLocal treatment of a tumour is of interest from a number of perspectives. It is focused on reducing the tumour volume with minimal trauma, inducing tumour immunity and is a potential component of a combination therapy against tumours. Interstitial laser thermotherapy (ILT) has turned out to be a method well suited for selective local destruction of malignant tumours. This thesis is based on an exp
Fire functional traits (postfire resprouting and seeding) are considered to be adaptations for persisting in fire-prone environments. Although ecological and evolutionary consequences of sprouting have been extensively discussed, within-species genetic variability and structure are unknown. Here we report levels and distribution patterns of genetic polymorphisms in postfire stands of the predomina
Background: 25-hydroxyvitamin D3 (25(OH)D3) affects immune function, bone health, and reproduction. The precursor of 25(OH)D3, vitamin D3, is synthesized upon ultraviolet (UV) radiation exposure, the levels of which vary. Methods: In a one-year observational study, we used multiple statistical approaches to examine 25(OH)D3 metabolism and UV exposure in 217 healthy men (aged 30–50 years) not using
Conference abstracts Content Summary of research abstracts presented during the thematic parallel sessions and poster session. 1. Overarching theme: Knowledge for Sustainable Development 2. Theme I: Knowledge on crisis and resilience in the sustainability context 3. Theme II: Knowledge on communicating uncertainty and ambiguity in sustainability research 4. Theme III: Knowledge about justice and e
Though new goals for sustainable cities and transport systems have been developed, decisions and planning at a local level often fail to achieve these ambitions. The purpose of this article is to analyse the factors in local decision-making and planning practice that conduce to urban sprawl and increased car traffic. The article analyses how the conscious application of so-called "day-to-day decis
Objective: To evaluate a simple working procedure for recording postoperative complications. Design: Prospective cohort study. Setting: Teaching hospital, Denmark. Subjects: 218 of 312 patients who were operated on from March to July 1996. Interventions: Follow up 30 days after operation by looking up the local register of complications, review of medical records and by structured telephone interv
In this study, the heat and mass transport characteristics of anode-supported solid oxide fuel cells (SOFCs) are numerically investigated by using a two-dimensional model. The mathematical model is validated by comparing the numerical results with experimental data found in the open literature. The species and temperature distributions of SOFCs at different cell voltages are presented and compared
This paper provides a simplified method of exploring the geographical limits of a knowledge shock over the long run. Using a geographically decomposable distance weighed sum of world GDPs by county, differences in differences regression analysis shows that a new university will not only have a positive impact on the local economy, but also on the GDP of nearby counties. Furthermore, challenging th
This paper reports on studies of multiple-injection strategies of gaseous fuel in a model combustion chamber and the role of jet-jet interactions on the mixing processes in the chamber using large-eddy simulation (LES). A high-pressure non-reacting gas flow injected through a jet with a nozzle diameter of 1.35 mm into a quiescent inert air environment is considered. First, we validate the method a
An Eulerian Monte-Carlo approach, the so-called Eulerian stochastic fields (ESF) method is implemented and evaluated for simulation of non-premixed hydrogen/air combustion in supersonic flows. The ESF method is integrated into a compressible flow large eddy simulation (LES) solver, and validated on a supersonic combustor with a strut as flame-holder. Comparison with experimental data and with resu
We report on low-temperature transport measurements on four-terminal cross junction devices fabricated from high-quality graphene grown by chemical vapor deposition. At high magnetic fields, the bend resistance reveals pronounced peak structures at the quantum Hall plateau transition, which can be attributed to the edge state transport through the junctions. We further demonstrate that the bend re
Start-up companies and young firms are driving forces of innovation and regional economic development. They are acknowledged to play a crucial role as innovation agents, particularly, in knowledge-based industries. Most scholars agree that young firms and academic spin-offs innovate more radically, drawing on the knowledge generated in universities and research organisations. It is often assumed t
