The finite derived set property asserts that any infinite subset of a space has an infinite subset with only finitely many accumulation points. Among other things, we study this property in the case of a function space with the topology of pointwise convergence. 2000 AMS Classification: 54A25, 54A35, 54D55.

The restrictive assumptions associated with purely genetic and purely ecological mechanisms suggest that neither of the two forces, in isolation, can offer a general explanation for the evolutionary maintenance of sex. Consequently, attention has turned to pluralistic models (i.e. models that apply both ecological and genetic mechanisms). Existing research has shown that combining mutation accu...

Andrew Heathcote ([email protected]) School of Medicine, The University of Tasmania Social Sciences Building, Sandy Bay, 7005, Tasmania, Australia Brandon Turner ([email protected]) Department of Psychology, The Ohio State University, Columbus, OH 43227 USA Scott D. Brown ([email protected]) School of Psychology, The University of Newcastle, Psychology Building, Universit...

The tree-drawing problem is to produce a `tidy' mapping of elements of a tree to points in the plane. In this paper, we derive an eecient algorithm for producing tidy drawings of trees. The speciication, the starting point for the derivations, consists of a collection of intuitively appealing criteria satissed by tidy drawings. The derivation shows constructively that these criteria completely ...

Critical ethnographies and methods of relational comparison provide tools for reconfiguring area studies to challenge imperial visions of the world; for illuminating power-laden processes of constitution, connection, and disconnection; and for identifying slippages, openings, contradictions, and possibilities for alliances. Crucial to this project are Lefebvrian conceptions of the production of...

Senescence (aging) is defined as a decline in performance and fitness with advancing age. Senescence is a nearly universal feature of multicellular organisms, and understanding why it occurs is a long-standing problem in biology. Here we present a concise review of both evolutionary and mechanistic theories of aging. We describe the development of the general evolutionary theory, along with the...

Theory suggests that the risk of extinction by mutation accumulation can be comparable to that by environmental stochasticity for an isolated population smaller than a few thousand individuals. Here we show that metapopulation structure, habitat loss or fragmentation, and environmental stochasticity can be expected to greatly accelerate the accumulation of mildly deleterious mutations, lowering...

The corruption is a secondary phenomenon, because there are economic preconditions causing it. Unless the achievement of macroeconomic stability and the formation of the institutions appropriate to a market economy reach their logical ending, both of them may become the cause of corruption in the post-Communist transformation of the economy. In order to restrict corruption and establish the ins...