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School districts in the United States and around the world are increasingly moving away from traditional neighborhood school assignment, in which pupils attend closest schools to their homes. Instead, they allow families to choose from schools within district boundaries. This creates a market with parental demand over publicly-supplied school seats. More frequently than ever, this market for schoo
This thesis explores how transaction costs affect the optimality of hedging when using Black-Scholes option pricing model. Further, a number of models developed to improve the hedging results of Black-Scholes, when accounting for transaction costs, are analysed and compared. To numerically evaluate these strategies, extensive Monte-Carlo simulations are generated and the results of the strategies
This is a qualitative study of the children's home Onesimus' Brothers. In 1992 pastor Dugulescu decided to start a program to meet the streetchildrens needs. The purpose of this paper was to explore how the children's orphanage is organised and what the purpose and the methods of the work are. The question asked were: * How has the institutional care on the orphanage developed and chan
There is today an ongoing debate about Fair Trade and its consequences. The way to reach an understanding about the producers lives is important if the future will be liberated from the uneven access to the market. Today the free market is dominated by a few multinational companies and for poor producers there is no chance to compete at the same level. If industrial countries continue to exploit d
For financial risk management it is of vital interest to have good estimates for the correlations between the stocks. It has been found that the correlations obtained from historical data are covered by a considerable amount of noise, which leads to a substantial error in the estimation of the portfolio risk. A method to suppress this noise is power mapping. It raises the absolute value of each ma
An experimental study was conducted to investigate pressure drop and heat transfer in a U-bend section with various configurations of guide vanes and two kinds of rib shapes on the outer wall. Ten guide vane types were tested. Results highlight that the use of special guide vanes can reduce the pressure drop penalty up to a maximum of 31%. However, guide vanes are usually associated with heat tran
Based on recent advances in control theory, we propose the notion of jitter margin for periodic control tasks. The jitter margin isdefined as a function of the amount of constant delay in the controlloop, and it describes how much additional time-varying delay can betolerated before the loop goes unstable. Combined with schedulingtheory, the jitter margin can be used to guarantee the stability and
The agile movement has received much attention in software engineering recently. Estab-lished methodologies try to surf on the wave and present their methodologies as being agile, among those Rational Unified Process (RUP). In order to evaluate the statements we evaluate the RUP against eXtreme Programming (XP) to find out to what extent they are similar and where they are different. We use a qual
The development of efficient vehicle-to-vehicle (V2V) communications systems requires an understanding of the underlying propagation channels. In this paper, we present results on pathloss, power-delay profiles (PDPs), and delay-Doppler spectra from a high speed measurement campaign on a highway in Lund, Sweden. Measurements were performed at a carrier frequency of 5.2GHz with the communicating ve
Sex determination is typically classified as either genotypic or environmental. However, this dichotomy obscures the developmental origin and evolutionary modification of determinants of sex, and therefore hinders an understanding of the processes that generates diversity in sex-determining systems. Recent research on reptiles and fish emphasizes that sex determination is a multifactorial regulato
In this study we explored how men diagnosed with prostate cancer experienced their sexuality from a lifeworld perspective. One essential meaning was identified: "having the elixir of life stolen." This essential meaning had four constituents: "something that no longer exists," "the threat to manhood," "intimacy," and "staged manhood." The lifeworld for these men comprised the dynamic interaction b
Alginate microbeads, produced by emulsion/internal gelation, were studied for the entrapment and microcultivation of microbial cells with biotechnological potential. An anaerobic consortium which was selected for its capacity to degrade complex carbohydrates, and a pure culture of cellulose degrading bacteria were used for entrapment studies. Optimization of conditions for the formation of spheric
This paper makes a plea for the construction of a common agenda for higher education and science, technology and innovation (STI) policy research. The public higher education and research sector in all countries is currently in the grip of several challenges arising from increased accountability, internationalization and in some cases dwindling resources. Even as the sector is struggling to come t
