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Language teaching is all about relationships. As Earl Stevick famously put it, success in learning a language “depends less on materials, techniques and linguistic analyses, and more on what goes on inside and between the people in the classroom” (1980 p. 4). For the teacher, getting students engaged in learning activities, and involved in developing communicative competence, requires interpersona
How should scarce health-related resources be allocated? This paper argues that values that apply to these decisions fail to always fully determine what we should do. Health maximization and allocation-according-to-need are suggested as two values that should be part of a general theory of how to allocate health-related resources. The "small improvement argument"is used to argue that it is implaus
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
Transfer of melanin-containing melanosomes from melanocytes to neighboring keratinocytes results in skin pigmentation. To provide a more practical method of visualizing melanosomes in melanocytes as well as in keratinocytes, we attempted to use murine cell lines instead of human primary cells. We generated various fluorescent fusion proteins of tyrosinase, a melanin synthesis enzyme located in the
Silica-titania (70/30) supported vanadium catalysts were prepared, characterized, and studied in oxidative dehydrogenation of sulfur-contaminated methanol. The quality of vanadia species is dependent on temperature and gas conditions during preparation, support type, support specific surface area and VOx surface density. For example, upon heating the amount of V2O5 decrease along with formation of
A crucial part in an adaptive control system is the estimation of the unknown parameters of the process. The estimation is often done using a Kalman filter or an Extended Kalman filter. These estimators give good results if the parameters are not varying too fast. When the parameters are varying fast there are difficulties for the estimator to follow the variations. This paper outlines a new appr
Investigation of the dynamics of colloids in bulk can be hindered by issues such as multiple scattering and sample opacity. These challenges are exacerbated when dealing with inorganic materials. In this study, we employed a model system of Akaganeite colloidal rods to assess three leading dynamics measurement techniques: 3D-(depolarized) dynamic light scattering (3D-(D)DLS), polarized-differentia
The aim of this thesis was to investigate, develop and implement an Advanced Driver Assistance System (ADAS) feature for an ultra-light electric vehicle, focusing specifically on an Automatic Emergency Brake (AEB). The fundamental requirements, for an ultra-light electric vehicle, were found and investigated through experiments. A person detection algorithm with camera and LiDAR was developed with
This paper presents an investigation on the compressive behavior of plain concrete columns confined with steel-reinforced grout (SRG) composites. The test parameters include size and crosssectional shape (square or circular) of the columns, and number of layers (one or two) and density (low or medium density) of the steel fiber sheet. Out of 46 specimens herein presented, 33 were confined with SRG
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
