Conventional compilers often are large entities that are highly complex, di cult to maintain and hard to reuse. In this article it is argued that this is due to the inherently functional approach to compiler construction. An alternative approach to compiler construction is proposed, based on object-oriented principles, which solves (or at least lessens) the problems of compiler construction. Th...

Introduction The material interpretation of conditionals is commonly recognized as involving some paradoxical results. I here argue that the truth functional approach to natural language is the reason for the inadequacy of this material interpretation, since the truth or falsity of some pair of statements ‘p’ and ‘q’ cannot per se be decisive for the truth or falsity of a conditional relation ‘...

This article presents a qualitative analysis showing the dependency of effective collaborative argumentation on interpersonal relational aspects that develop during synchronous interaction. Four regulatory principles are proposed as propelling the interaction, and of these, autoregulation, or the conservative restraints within the existing relation, appears to be the dominant force. When using ...

In this work, a new external schema definition methodology for object oriented databases (OODB) that solves some of the problems of existing methodologies is presented. In particular, this new methodology avoids the need for generating derived classes that are not directly used in the defined external schema. Also, it offers a way of integrating and reusing different external schema definitions.

We have tested the feasibility of real-time localized blood flow measurements, obtained with interstitial (IS) Doppler optical coherence tomography (DOCT), to predict photodynamic therapy (PDT)-induced tumor necrosis deep within solid Dunning rat prostate tumors. IS-DOCT was used to quantify the PDT-induced microvascular shutdown rate in s.c. Dunning prostate tumors (n=28). Photofrin (12.5 mg/k...

Abstract In this work, a comparative study of hybrid solar cells based on P3HT and TiO2 nanofibers was accomplished. Electrospinning, a low cost production method for large area nanofibrous films, was employed to fabricate the organic-inorganic hybrid solar cells based on poly (3-hexylthiophene) and TiO2 nanofibers. The performance of the hybrid solar cells was analyzed for four density levels ...

Abstract This study reports a facile impregnation method for synthesizing Ni-doped TiO 2 nanomaterials using P25-TiO as starting material. The prepared were subjected to structural and optical characterizations subsequently employed in photovoltaic studies. X-ray diffraction (XRD) Raman studies confirmed that Ni doping did not alter the anatase rutile contents of . Also, presence constituent do...

This paper presented a new retrofit system for strengthening the stringer-to-floor-beam double-angle connections in 92-year-old riveted railway bridge Switzerland, using prestressed carbon fiber-reinforced polymer (CFRP) rods. The transmitted forces purely through friction, with minimum interference traffic. consisted of two components: newly developed mechanical wedge-barrel anchor to hold CFR...