Routing is considered to be one the most challenging problems in mobile ad hoc networks. It has been shown that the use of virtual coordinates or identifiers for efficient routing and data management has several advantages compared to classical topology control techniques based on pre-defined addresses or geographical coordinates. However, these advantages only hold for single domain networks w...

The patrolling problem considered in this paper has the following characteristics: Patrol units conduct preventive patrolling and respond to call-for-service. The patrol locations (nodes) have different priorities, and varying incident rates. We design a patrolling scheme such that the locations are visited based on their importance and incident rates. The solution is accomplished in two steps....

In wireless networks, bandwidth is likely to remain a scarce resource. We foresee scenarios wherein mobile hosts will require simultaneous data transfer across multiple links to obtain higher overall bandwidth. A call request of a connection in a wireless network is blocked if there exits no bandwidth route. This blocking does not mean that the total system bandwidth capacity is less than that ...

Biogenic substrata such as epibenthic mussel aggregations are common in coastal regions worldwide and harbour diverse assemblages of sessile and mobile species. However, colonisation patterns on biogenic substrata are still not well understood. We tested whether succession develops as a linear sequence of temporal changes in the species richness and community structure of sessile and mobile ass...

If given the opportunity to reduce your debt, albeit at some financial risk, would you take it? Interviews and observations in two debt settlement firms show that debt settlement clients tend not to calculate financial risks in deciding which debts to try to settle. Rather, they treat their relationship with their creditor as a reciprocal and ongoing one. If the service provided by their credit...

This paper explores the properties of daily changes in the prices for near-term fed funds futures contracts. The paper finds these contracts to be excellent predictors of the fed funds rate, and shows that the claim of a nonzero term premium in the short-horizon contracts is more sensitive to outliers than previous research appears to have recognized. I find some statistically significant evide...

For sessile marine invertebrates, processes contributing to larval release, dispersal, and settlement in favourable habitats are central to patterns of distribution and community structure. We quantified larval release patterns, phototactic behaviour, and settlement in response to environmental cues for the coral reef sponge Luffariella variabilis. Individual sponges released up to 830 larvae d...