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This thesis was carried out at the Division of Combustion Engines within the Faculty of Engineering at Lund University in collaboration with SP Technical Research Institute of Sweden. The thesis was part of a project funded by the FFI program of VINNOVA, with the goal of creating a standardized test method when it comes to fire detection systems mounted in engine compartments of heavy vehicles. As
Data from p–Pb collisions reconstructed with the ALICE experiment at √s = 5.02 TeV is analyzed to study J/Ψ production (a possible Quark Gluon Plasma signal) in different pT ranges. Results obtained by studying the invariant mass distribution via the dielectron decay channel show a significant J/Ψ yield from approximately pT > 2 GeV/c with statistics up to about 10 GeV/c. The signal is observed via
Over decades companies co-created products together with customers. The rise of social media has created new possibilities of collaboration and changed the way how companies can interact with customers. Social media features play a significant role in online co-creation projects, because they enable companies to engage in an active dialogue with their customers. The purpose of this thesis is to pr
Men are more interested in a researcher career than women, and awareness about the gender imbalance within the Academia increases men's interest (Tellhed, 2013). This study aimed to examine what causes the increase in men's interest and impairments in women's interest towards a researcher career. Two hundred and eight (99 males, 109 females) students received information about the Acad
The Next to Minimal Supersymmetric Standard Model (NMSSM) allows a CP violating phase at tree level in the Higgs sector. This CP violation will introduce new mixing between the neutral Higgs states and give rise to changes in the mass spectrum and couplings. We investigate these effects in light of the newly discovered Higgs boson, as its measured properties provides new limits on the Higgs sector
Popular science summary: Analysis of Map3k-dependent molecular mechanisms regulating signaling in lymphocytes My research involves investigating the roles of Map3k1 and Map3k7 genes in relation to invariant natural killer T (iNKT) cells. iNKT cells are a unique population of T cells whose phenotypical, developmental and functional characteristics differ from conventional T cells. iNKT cells exp
The Netherlands has experienced a rapid rate of land use change from 2000 to 2008. Land use change is especially urban expansion and open agriculture reduction which is due to enhanced economic growth. This thesis reports an investigation into the application of remote sensing, geographic information systems (GIS) and statistical methods to provide quantitative information on the effect of land us
Earlier studies have shown that both gender and masculine or feminine traits affects judgement about a person's qualities. This study builds upon earlier research and investigates the relation between voice and appearance with respect to gender based stereotype judgement, by letting participants listen to and then rate two of totally eight different digital characters, four female and four mal
This research aims to bring a better understanding on the challenges of the current education policy in Ethiopia. The current education policy in Ethiopia has been developed to bring a desirable quality education, yet education quality in Ethiopia is getting worse. Here one can assume that there are several factors contributing to the education policy gaps which quensiquently end up in low educati
superparamagnetic nanoparticles have been used for different applications, especially for MRI as a contrast agent. Recently, a new technique called Magneto-motive ultrasound (MMUS) imaging was introduced making these particles also work for as a contrast agent for ultrasound. This method uses a time varying magnetic field as an excitation source to provoke motion of magnetic nanoparticles laden in
When speaking in terms of institutional fragmentation in global environmental governance one might rather immediately notice that a certain degree of said fragmentation probably is a perennial characteristic in this context and, arguably, preferable. However, the degree varies rather widely in time, space and issue areas. Fisheries being an example of a relatively high degree of fragmentation, sin
The credit is a financial service which holds a vital role to the transactions between the financial and non-financial enterprises with their customers. The goal of credit is to aid the legal and physical persons to successfully face and thus to overcome their difficult economical situations. Due to the fact that the VAT exemption status of granting, negotiation and management of credit causes neg
The purpose of this thesis is to explore the possibility of asymmetry in the dynamic conditional correlation of stock returns and gold returns. We hypothesize that this asymmetry might be different for large and small firms, as a result of size specific characteristics that may influence firm profitability and risk following negative market shocks. We investigate this on three different sized U.S.
This report examines how Norway’s and EU’s regulations set requirements to environmental barriers. The result is based on a review of relevant regulations and an interview study with personnel from the drilling industry. The result shows that the main difference between the regulations is that EU explicitly focuses on environmental critical elements and that the tradition within the industry is to
Syftet med den här uppsatsen var att undersöka relationen mellan upplevt ansvar att hjälp, förväntad skuld (negativa känslor) när man föreställer sig att man inte hjälper och förväntad warm glow (positiva känslor) när man föreställer sig att man hjälper. Syftet var också att se hur dessa förväntningar predicerar sannolikheten att hjälpa. Totalt 283 personer från ett universitetsområde i Sverige deThe aim of this paper was to investigate the relationship between experienced responsibility to help, anticipated guilt (negative emotions) when imagining not helping and anticipated warm glow (positive emotions) when imagining helping. The aim was also to see how these anticipations predict the probability to help. In total, 283 people from a university area in Sweden participated in the studies.
Klimatförändringar orsakade av antropogena faktorer har en ökande effekt på både naturliga och humana system. Klimatförändringar bidrar till en förändring av varaktigheten, frekvensen och intensiteten av extrema väderhändelser (som till exempel stormar, översvämningar och värmeböljor). Några exempel på konsekvenser från klimatförändringar på de humana systemen är förlust av liv, förlust av egendomThe changing climate caused by anthropogenic factors has an increasing effect on natural and human systems. There is therefore an increasing need for society to adapt to the effects of climate change (IPCC, 2012; Rescalvo et al., 2013) This is vital since the effects of climate change are already being noticed in many parts of the world (Rescalvo et al., 2013). However, municipalities in Sweden ge
Hirham5, a weather model developed at DMI, does not have a very good approximation for the snow albedo. To make the model better a snow albedo code, based on Dickenssen’s equation for snow albedo, was implemented in the model where the albedo depended on more variables than just the temperature. This change is important since the radiation contributes more to the melt than the temperature. The sur
