We consider a descriptive version of Kakutani equivalence for Borel automorphisms of Polish spaces. Answering a question of Nadkarni, we show that up to this notion, there are exactly two Borel automorphisms: those which are smooth, and those which are not. Using this, we classify all Borel R-flows up to C∞ time-change isomorphism. We then extend the notion of Kakutani equivalence to all (not n...

In Chapter 1, we introduce a notion of universality for subgroups of Polish groups that has both algebraic and topological aspects. More precisely, given a class C of subgroups of a topological group Γ, we say that a subgroup H ∈ C is a universal C subgroup of Γ if every subgroup K ∈ C is a continuous homomorphic preimage of H. Such subgroups may be regarded as complete members of C with respec...

The Atlas of Descriptive Histology is an extremely comprehensive and well-organized atlas including 612 illustrations covering everything from basic tissue to full organ histology. In a clear, systematic fashion, the authors move from simple tissue structures to complex organ systems, including micrographs of the adult tongue, lip, teeth, eye, ear, and developing teeth. Each chapter is designed...

Community mining is applied in order to identify groups of users which share, e.g., common interests or expertise. This paper presents an approach for mining descriptive patterns in order to characterize communities in terms of their distinctive features: For an efficient discovery approach, we introduce optimistic estimates for obtaining an upper bound for the community quality. We present an ...

In this paper we present our ongoing work on “Organic Computing”. We present an illustrative case study from program automation that uses OC-paradigms to be failure tolerant and to produce effectively. We present a way to build and verify a formal model of a self-adaptive system. We also give further ideas for formal modeling and our ideas of safety analysis of such systems. Another topic is ho...

economics has hit the mainstream in the last decade with popular books like freakonomics and the undercover economist reaching the masses. these authors have used their toolkits far beyond the narrow scope of money and finance and answered questions pertaining to anything from social policy to demographics to crime. their appeal has largely been their ability to explain that small underlying fo...

PURPOSE This pilot study sought to examine the relationship between functional health patterns and accident proneness. METHODS A quantitative-descriptive design was employed assessing accident proneness by collecting data on the occurrence of accidents among a sample of university graduates, and examining this in relation to biographical data and information collated using the Functional Heal...

We evaluated problem behavior exhibited by 6 individuals with developmental disabilities using the behavioral economic conceptualization of unit price. Descriptive observations were conducted during interactions between the participants and their primary care providers in a clinical laboratory, the participants' homes, or school. Data were recorded on potential reinforcers and problem behavior....

This article introduces a fully automated verification technique that permits to analyze real-time systems described using a continuous notion of time and a mixture of operational (i.e., automata-based) and descriptive (i.e., logic-based) formalisms. The technique relies on the reduction, under reasonable assumptions, of the continuous-time verification problem to its discrete-time counterpart....

Gielis curves and surfaces can describe a wide range of natural shapes and they have been used in various studies in biology and physics as descriptive tool. This has stimulated the generalization of widely used computational methods. Here we show that proper normalization of the Levenberg-Marquardt algorithm allows for efficient and robust reconstruction of Gielis curves, including self-inters...