Inherently conducting polymers have been used in several applications for flexible electronics, for example in organic thin film transistors (OTFT), organic light emitting diodes (OLED), organic photovoltaic cells and electrochromic devices [1-3]. Nanoimprinting may offer a high throughput method to produce low cost devices [4] also when functional polymers such as conducting polymers are used....

Within Linguistics the semantic analysis of natural languages (English, Swahili,...) has drawn extensively on semantical concepts first formulated and studied within classical logic, principally first order logic. Nowhere has this contribution been more substantive than in the domain of quantification and variable binding. As studies of these notions in natural language have developed they have...

Proof. As observed in McNulty [7], a locally finite variety V of finite type is inherently nonfinitely based if and only if for infinitely many natural numbers N , there is a non-locally-finite algebra each of whose N -generated subalgebras belongs to V. We prove the theorem by establishing these facts. We assume the reader is familiar with the basic facts of modular lattices; see [1], [2], [6]...

This paper a t tempts to clarify two distinct notions of "reversibility": (i) Uniformity of implementation of parsing and generation, and (it) reversibility as an inherent (or intrinsic) property of grammars. On the one hand, we explain why grammars specified as definite programs (or the various related "unification grammars") lead to uniformity of implementation. On the other hand, we define d...

It is often assumed that the space we perceive is Euclidean, although this idea has been challenged by many authors. Here we show that, if spatial cues are combined as described by Maximum Likelihood Estimation, Bayesian, or equivalent models, as appears to be the case, then Euclidean geometry cannot describe our perceptual experience. Rather, our perceptual spatial structure would be better de...