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This study was performed using daily spot prices, from January 1997 through July 2004; of the three assets that constitute the crack spread i.e. crude oil, gasoline and heating oil - all listed on the New York Mercantile Exchange (NYMEX). Our objective has been to characterize the dynamics of the spread and subsequently create trading strategies to yield returns that surpass that of a passive appr
Water particle orbits are key elements in the Lagrange wave formulation. The stochasticMiche implementation of the Lagrange model is a linear Gaussian 2D or 3D space-time model which exhibit typical non-linear wave characteristics when transformed to Eulerian coordinates. This paper investigates the statistical relation between the degree of front-back asymmetry of individual waves and the orbit Water particle orbits are key elements in the Lagrange wave formulation. The stochastic Miche implementation of the Lagrange model is a linear Gaussian two-dimensional or three-dimensional space–time model which exhibits typical nonlinear wave characteristics when transformed to Eulerian coordinates. This paper investigates the statistical relation between the degree of front–back asymmetry of ind
Iridium(iii) half-sandwich complexes containing 7-chloroquinoline-1,2,3-triazole hybrid ligands were synthesised and their inhibitory activities evaluated against the Plasmodium falciparum malaria parasite. Supporting computational analysis revealed that metal coordination to the quinoline nitrogen occurs first, forming a kinetic product that, upon heating over time, forms a more stable cyclometal
Popular Abstract in Swedish Den här avhandlingen handlar om interaktion mellan två ytor (t.ex. fibrer, lerpartiklar eller proteiner) i en vattenlösning med motjoner, salt och/eller polyelektrolyter. Polyelektrolyter är laddade polymerer. Avhandlingen är fokuserad på elektrostatisk växelverkan och interaktionerna har undersöks med hjälp av Monte Carlo-simuleringar. De kvalitativa resultaten har oftThe interaction between two colloids with grafted polyelectrolytes in aqueous solution is studied within the primitive model by Monte Carlo simulations. For neutral colloids with grafted polyelectrolytes and in absence of salt the interaction is strongly repulsive in absence of salt. The interaction depends on the extension of the polyelectrolytes from the surfaces and the interaction is derived a
Fluorescence-based detection assays play an essential role in the life sciences and medicine. To offer better detection sensitivity and lower limits of detection (LOD), there is a growing need for novel platforms with an improved readout capacity. In this context, substrates containing semiconductor nanowires may offer significant advantages, due to their proven light-emission enhancing, waveguidi
The growth of epitaxial graphene on SiC has been identified as one of the most promising techniques to produce graphene for electronic applications. In this paper, we present a systematic study of the electronic and structural properties of large-area quasifree standing epitaxial monolayer graphene grown on top of the SiC(0001) surface. For this purpose, we combine the thermal treatment of SiC in
Predatory arthropods contribute to biological control, but to become an integral part of agricultural management, it is essential to identify drivers of their spatio-temporal distribution at the landscape scale. This study focuses on how agricultural land use affects the community composition, emergence and dispersal tendency of predatory arthropods. The arthropods were collected in emergence trap
Purpose: This paper aims to discuss the current debates in facility management to understand where the research community is working and where the facility management sector and discipline might be heading. Design/methodology/approach: A review of research outputs has been undertaken to identify research themes. The discussion is based on developments that are already shaping how one should view f
n this paper I will use concepts from innovation theory to analyse the work of the Court of Justice of the European Union in its important role as sole interpreter of EU law. In that regard, I define ‘innovator’ as one that facilitates use of new or existing inventions. Thus innovation is portrayed as a process in which several actors may contribute and where it all starts with an invention (the s
The world of sports has a complex association to problem gambling, and the sparse research examining problem gambling in athletes has suggested an increased prevalence and particularly high male predominance. The present study aimed to study frequency and correlates of problem gambling in populations with moderate to high involvement in fitness or physical exercise. This is a self-selective online
Objectives: To present hearing results after successful primary myringoplasty surgeries registered in the Swedish Quality Registry for Myringoplasty and to evaluate the chance of hearing improvement and the risk of hearing loss. Design: A retrospective nationwide cohort study based on prospectively collected registry data between 2002 and 2012. Settings: Registry data from secondary and tertiary h
I samband med askmolnet under våren 2010 ställdes flertalet arbetsgivare inför problematiken hur arbetstagares frånvaro skulle hanteras. Uppsatsen redogör vilken arbetsrättslig reglering som finns när det gäller frånvaro orsakat av en force majeure situation, samt hur några utvalda organisationer tillämpade dessa regler i samband med askmolnet. Den belyser även hur regleringen skiljer sig beroendeDuring the spring of 2010 the ash cloud from an erupted Icelandic volcano caused serious problems across Europe. Several organisations faced problems, for example stranded employees abroad who were unable to appear at work. This paper describes the Swedish labour law regulation that exists in the absence caused by a force majeure situation, and how some selected organisations applied these rules i
This thesis illustrates a method of analysing the risk management of an enterprise in its management system from a systems perspective. The method implies, by means of a model of the value chain of an enterprise, connecting the external and internal demands for risk management with the business processes of the enterprise. This is done with a view of pointing out defects in the internal demands in
The purpose of this study was to examine how preschool personnel view there role in connection with suspicions of child maltreatment according to chapter 14 § 1 Social Services Act and what eventually dilemma preschool personnel experience in connection to their mandatory report. A qualitative study was conducted and five preschool teachers and child minders complied. The interviews were analysed
Nowadays, the number of people infected with HIV/AIDS keeps rising in many countries. How can this risk be managed in society is an issue that gains on relevance. This paper focuses on the topic, how risk is communicated to society in the case of HIV/AIDS in Germany. It also looks at what aspects are emphasized and if different social groups are represented. Two nation-wide campaigns in Germany fr
This study examined the connection between attachment styles of couples in couples councelling and the therapists' experience of alliance. Fifty-one couples (51 women and 51 men) were asked to complete self-report measures concerning their attachment styles when coming to councelling the first time. After three sessions in councelling the 23 therapists were asked to complete self-report measur
The tradeoff between risk and return is a topic that most investors consider carefully before an investment decision is made. Markowitz’s pioneer work on portfolio selection using the mean-variance framework has entailed a great extent of research in this field. One research is the Sharpe ratio, which is a measure of a financial performance using variance as a risk measure. The shortcoming of vari
Despite vast existing research on apartheid in South Africa, little is known about the perspective of those who got blamed for the comprehensive violence, those who thought of themselves as confident combatants and heroes, while others judged them as criminals. This study aspires to create a more nuanced picture of these men and focuses on the perpetrators self perception concerning the political
This study researched and evaluated nail salon practitioner’s knowledge when it came to relevant laws, regulations and hazards, as well as which routines they practice to avoid hazards. The study was conducted in Malmö, Sweden, where a series of interviews with nail salon practitioners were carried out. All practitioners were asked the same questions, which were based on laws, regulations and advi
