The local asymptotic power of many popular non-cointegration tests has recently been shown to depend on a certain nuisance parameter. Depending on the value of that parameter, different tests perform best. This paper suggests combination procedures with the aim of providing meta tests that maintain high power across the range of the nuisance parameter. The local asymptotic power of the new meta...

We examine recent claims of a large set of flux compactification solutions of string theory. We conclude that the arguments for AdS solutions are plausible. The analysis of meta-stable dS solutions inevitably leads to situations where long distance effective field theory breaks down. We then examine whether these solutions are likely to lead to a description of the real world. We conclude that ...

As we see a growing variety of network and application behaviors, it becomes more important that protocols adapt to their surroundings. Building adaptive protocols is complicated, and therefore we have considered building hybrid protocols that switch between specialized protocols. In this paper, we show for which communication properties this is a correct solution, and classify these using a ne...

Meta-S is a practical implementation and extension of the theoretical framework developed by Hofstedt, which allows the user to attack problems requiring the cooperation of arbitrary domain-specific constraint solvers. Through its modular structure and its extensible strategy specification language it also serves as a test-bed for generic and problem-specific (meta-)solving strategies, which ar...

Grid Resource Management tools evolved from manual discovery and task submission to sophisticated brokering solutions. User requirements created certain properties that resource managers have learned to support. This development is still continuing, and users already need to stress themselves to distinguish brokers and migrate their applications when they move to a different grid. Moreover, gri...

In the analysis by Brown and colleagues that compared the current rnammography reading policy at St. Margaret's Hospital (double reading with consensus required for recall) with 2 alternative hypothetical strategies, the authors showed that the current strategy used is the most cost-effective. 2 elements of this study must he considered when attempting to generalise the conclusions to other set...

Ever-increasing development of information technology has affected many aspects of the individual, social and organizational life. This enforces many countries to develop and adapt comprehensive plans to manage this relatively new phenomenon. Highly adoptable e-government policies and protocols are required nationally, where traditional e-government plans are failed to address the citizens' req...

To design good variety mixtures it is important to understand the influence of varietal and environmental characteristics on mixing effect, e.g. what characteristics are more beneficial when all mixed varieties express it highly and what characteristics are more beneficial when the mixed varieties express it to varying extent. However, as it is generally impossible to manage more than a few exp...