When two types of stimuli are mixed in a trial block, each stimulus type is typically responded to more slowly than when those stimuli are presented by themselves in pure blocks (a ‘‘mixing cost,’’ Los, 1996). In word/non-word naming tasks, however, mixing two types of stimuli leads to a different, ‘‘homogenization,’’ pattern. There is a mixing cost for the easier stimuli and a mixing benefit f...

Nonnative invasive species are one of the main global threats to biodiversity. The understanding of the traits characterizing successful invaders and invasion-prone ecosystems is increasing, but our predictive ability is still limited. Quantitative information on biotic homogenization and particularly its temporal dynamics is even scarcer. We used freshwater fish distribution data in the Iberia...

The increasing number of quantitative assessments of homogenization using citizen science data is particularly important in the Neotropics, given its high biodiversity and ecological peculiarity, and whose communities may react differently to landscape changes. We looked for evidence of taxonomic homogenization in terrestrial birds by investigating patterns of beta diversity along a gradient of...

Homogenized descriptions of plasticity on microand macro-scale are essentially different. A key distinction is that the energy of micron-size specimens, in contrast to that of macrospecimens, is not a functional of integral characteristics of the dislocation networks. Thus, energy must be considered as an independent characteristic of the body which is additional to all other characteristics. I...

We characterize the macroscopic effective mechanical behavior of a graphene sheet modeled by a hexagonal lattice of elastic bars, using Γ-convergence.

In this paper we consider the dynamics of dislocations with the same Burgers vector, contained in the same glide plane, and moving in a material with periodic obstacles. We study two cases: i) the particular case of parallel straight dislocations and ii) the general case of curved dislocations. In each case, we perform rigorously the homogenization of the dynamics and predict the corresponding ...

These notes contain the material related to the three lectures that I have delivered at the Workshop ‘Recent Advances in Homogenization’ held at INdAM, Rome in the week 23–27 May 2005. The notes are thought just as a complement and reference for the single lectures, and not as a whole: I must warn that the chapters are unevenly written. Some are elaboration of articles that have already appeare...

nouns – ‘hierarchy’, ‘connec-tivity’, ‘evolvability’, ‘complexity’ toname four – are becoming increasinglypopular as evolutionary developmentalbiology tries to find its theoretical feet.With Gerhard Schlosser, an amphibiandevelopmental biologist, GünterWagner has brought together a stellarteam of contributors to discuss theabstract noun du jour, ‘modularity.’...

We consider the homogenization of elliptic systems with ε-periodic coefficients. Classical two-scale approximation yields a O(ε) error inside the domain. We discuss here the existence of higher order corrections, in the case of general polygonal domains. The corrector depends in a non-trivial way on the boundary. Our analysis extends substantially previous results obtained for polygonal domains...