Doubly anharmonic oscillator under the topological effects of a screw dislocation

We consider an elastic medium with the distortion of a circular curve into a vertical spiral, and investigate the influence of this topological defect on the doubly anharmonic oscillator. We show that the Schr\"odinger equation for the doubly anharmonic oscillator in the presence of this linear topological defect can be solved analytically. We also obtain the exact expressions for the permitted energies of the ground state of the doubly anharmonic oscillator, and show that the topology of the screw dislocation modifies the spectrum of energy of the doubly anharmonic oscillator.Comment: 8 pages, no figur

Deservingness Transfers

This article seeks to cause trouble for a brand of consequentialism known as ‘desertarianism’. In somewhat different ways, views of this kind evaluate outcomes more favourably, other things equal, the better the fit between the welfare different people enjoy and the welfare they each deserve. These views imply that we can improve outcomes by redistributing welfare to fit desert, which seems plausible enough. Unfortunately, they also imply that we can improve outcomes by redistributing desert to fit welfare: in other words, by making happy people more deserving, at the cost of making unhappy people less deserving. Extant versions of desertarianism predict that such ‘deservingness transfers’ are improvements and that we ought to carry them out. Even worse, they will sometimes rank deservingness transfers higher than simply benefitting deserving people who are poorly off

The uncertainty in regional innovation policy: some ration-ales and tools for learning in policy making

This paper deals with two major dilemmas in regional innovation policy making: The dilemma that theory does not provide sufficient answers for the formulation of specific innovation policy measures addressing the problem configurations of single regions and the dilemma that role models are used as a substitute for orientation. In order to support policy learning, different approaches like evaluation, the development of innovation strategies and regional foresight are discussed. --

Reducing behaviour problems in young people through social competence programmes

There is a relatively strong relationship between the concepts of behavioural problems and social competence, in that social competence is regarded as one of the most important protective factors in the prevention of behavioural problems. This paper argues that the concept of social competence should include social skills, social practice and empathic understanding. It identifies the components that form part of an effective social competence programme, including enhancing an understanding of social situations, increasing the generation of adequate social skills, improving the management of provocations which may lead to uncontrolled anger, and developing empathic understanding. The evidence also suggests that effective social competence programmes for children and young people should be multi modal and consist of mixed groups of pupils with and without difficulties. The paper concludes with a brief description of Aggression Replacement Training as an example of a programme which follows the recommended guidelines.peer-reviewe

Impact Analysis of Multispecies Marine Resource Management

In an attempt to study the regional income and employment impact of different harvesting regimes and harvesting patterns of marine resources, this article demonstrates an approach of combining multispecies bioeconomic modeling and input-output (1-0) analysis. The applicability and usefulness of this approach is demonstrated by implementing the model with data from North Norway and the Barents Sea fisheries.multispecies harvesting, input-output model, income and employment impact, Barents Sea fisheries, Environmental Economics and Policy, Labor and Human Capital, Research Methods/ Statistical Methods, Resource /Energy Economics and Policy,

Pulse propagation in time dependent randomly layered media

We study cumulative scattering effects on wave front propagation in time dependent randomly layered media. It is well known that the wave front has a deterministic characterization in time independent media, aside from a small random shift in the travel time. That is, the pulse shape is predictable, but faded and smeared as described mathematically by a convolution kernel determined by the autocorrelation of the random fluctuations of the wave speed. The main result of this paper is the extension of the pulse stabilization results to time dependent randomly layered media. When the media change slowly, on time scales that are longer than the pulse width and the time it takes the waves to traverse a correlation length, the pulse is not affected by the time fluctuations. In rapidly changing media, where these time scales are similar, both the pulse shape and the random component of the arrival time are affected by the statistics of the time fluctuations of the wave speed. We obtain an integral equation for the wave front, that is more complicated than in time independent media, and cannot be solved analytically, in general. We also give examples of media where the equation simplifies, and the wave front can be analyzed explicitly. We illustrate with these examples how the time fluctuations feed energy into the pulse

Correction to Black-Scholes formula due to fractional stochastic volatility

Empirical studies show that the volatility may exhibit correlations that decay as a fractional power of the time offset. The paper presents a rigorous analysis for the case when the stationary stochastic volatility model is constructed in terms of a fractional Ornstein Uhlenbeck process to have such correlations. It is shown how the associated implied volatility has a term structure that is a function of maturity to a fractional power