We show that (consistently) there is a clone C on a countable set such that the interval of clones above C is linearly ordered and has no coatoms.

Among collections of Triatoma spinolai from various sites in northern Chile, adults from coastal populations are invariably wingless, whereas inland populations show balanced alary polymorphism between wingless females and males that are either winged or wingless. Laboratory crosses showed that male offspring from normal-winged parents were always winged (88% long-winged) and those from long-wi...

This paper presents a language-based method for analyzing and redesigning a user interface. The underlying theory and a practical application of the theory are presented. The practical application involves presenting an analysis and possible redesign of the user interface of the Macintosh version of the Personal Ancestral File (PAF) genealogical program.

In the last few years significant progress has been made in the area of network capacity provisioning and traffic engineering. Most of the proposed methods in the literature assume knowledge of the intradomain traffic matrix. Several methodologies have been proposed for estimating traffic matrices. For instance, the authors in [1] propose a technique that combines flow level measurements collec...

It is widely believed that Turing proposed a test for intelligence (or thinking). I suggest this is a mistaken reading of his 1950 paper (a) because Turing was far too intelligent to propose a test with so many flaws, (b) because his words indicate that he thought it would be a silly thing to do, and (c) because there is an alternative reading of his paper as making a technological prediction, ...

We continue the theory of evasion and prediction which was introduced by Blass and developed by Brendle, Shelah, and Laflamme. We prove that for arbitrary sufficiently different f, g ∈ ωω, it is consistent to have eg < ef , where ef is the evasion number of the space ∏ n<ω f(n). For this we apply a variant of Shelah’s “creature forcing”.