The paper presents an evolutionary model, based on the assumption that agents may revise their current strategies if they previously failed to attain the maximum level of potential payoffs. We offer three versions of this reflexive mechanism, each one of which describes a distinct type: spontaneous agents, rigid players, and ‘satisficers’. We use simulations to examine the performance of these ...

Live algorithms are computational systems made to perform in an improvised manner with human improvising musicians, typically using only live audio or MIDI streams as the medium of interaction. They are designed to establish meaningful musical interaction with their musical partners, without necessarily being conceived of as “virtual musicians”. This paper investigates, with respect to a specif...

The genus Achrysocharoides Girault is here reported for the first time from tropical America. Included are ten species, eight newly described: Achrysocharoides asperulus, Achrysocharoides callisetosus, Achrysocharoides cuspidatus, Achrysocharoides foveatus, Achrysocharoides infuscus, Achrysocharoides mediocarinatus, Achrysocharoides purpureus, Achrysocharoides sulcatus, and two already known: A...

This paper tries to point out some of the promises, quarrels, achievements, and perspectives of the forced marriage between the relational and objectoriented data models, from both theoretical and implementation perspectives. As practical O-R achievements, the latest SQL standards (SQL:1999-2008) and Oracle implementation are discussed

In a previous paper, we showed that Earth-type habitable planets around 47 UMa are in principle possible if a distinct set of conditions is warranted. These conditions include that the Earth-type planets have successfully formed and are orbitally stable and, in addition, that the 47 UMa star–planet system is relatively young (96 Gyr). We now extend this study by considering Earth-like planets w...

An important aim of this paper is to increase the level of rigor that we use to understand the role of the state as an institution determining the economic performance of other institutions. More specifically, we seek to increase our understanding of the role of the state in determining the economic performance of two distinct type of markets: “spontaneous” markets and “socially contrived” ones...

It is a fact of experience from the study of higher type computability that a wide range of approaches to defining a class of (hereditarily) total functionals over N leads in practice to a relatively small handful of distinct type structures. Among these are the type structure C of Kleene-Kreisel continuous functionals, its effective substructure C, and the type structure HEO of the hereditaril...

Situational interest is the positive affect and sustained attention triggered by particular contexts (Hidi & Renninger, 2006). Some studies show interesting information enhances learning while others find it hinders learning, producing the seductive detail effect. Limited evidence suggests the seductive detail effect is weakened if emotionally interesting information is relevant to main ideas. ...