Constraint networks are a simple represen tation and reasoning framework with diverse applications In this paper we present a new property called constraint tightness that can be used for characterizing the di culty of problems formulated as constraint networks Speci cally we show that when the con straints are tight they may require less pre processing in order to guarantee a backtrack free so...

We show that, in the nite propositional case, traditional circumscrip-tions can be fully described only from the formulas which can never come as a result of the given circumscription (the \inaccessible formulas"). Some work has already been done on the subject. Siegel and Forget have introduced the general notion of X-logic, and they have considered the case of nite proposi-tional circumscript...

In his article "Monomedial Hybridization in Contemporary Poetry" the debate on hybridization tends to overemphasize the blurring of boundari types in all possible forms: combination of types within a given work (multimodal "image comics and photo-novels, sound poetry, etc.), adaptation and remediation one (filmic adaptations of novels or novelizations of films, for instance), and, more generall...

Heparin and warfarin have constituted the dominant modes of anticoagulation for more than 50 years. Consequently, laboratory monitoring strategies for anticoagulation monitoring have focused almost exclusively on these 2 agents. This situation is about to change! We are on the verge of spectacular growth and diversification of available therapeutic agents as a result of the past decade’s explos...

Design errors in computer systems, i.e. bugs, can cause inconvenience, loss of data and time, and in some cases catastrophic damages. One approach for improving design correctness is formal methods: techniques aiming at mathematically establishing that a piece of hardware or software satisfies certain properties. For some industrial cases in which formal methods are utilized, a huge number of e...

Substantial amounts of Macrocystis and Lessonia are traditionally harvested and exported from Chile as raw material for alginate. Because of intense mari culture of abalone (Haliotis ssp.), herbivorous mol luscs that feed on brown kelps, pressure on local populations of Macrocystis and Lessonia has in creased to critical levels within the past 5 years, strongly supporting e¡orts to produce alga...

Approximate Accelera on for a Post Mul core Era Hadi Esmaeilzadeh Co-Chairs of the Supervisory Commi ee: Professor Doug Burger Microso Research Associate Professor Luis Ceze University of Washington Star ng in 2004, the microprocessor industry has shi ed to mul core scaling—increasing the number of cores per die each technology genera on—as its principal strategy for con nuing performance growt...

The purpose of this study was to investigate the comparative effect of using electronic short story books and traditional printed texts on EFL learners’ reading comprehension. For that purpose, ninety female learners ranging in age between fifteen and thirty five sat for the language proficiency test (PET, 2009) as the test of homogeneity and consequently sixty students were selected based on t...

We consider the problem of designing perhaps massively distributed collectives of computational processes to maximize a provided world utility function We consider this problem when the behavior of each process in the collective can be cast as striving to maximize its own payo utility function For such cases the central design issue is how to initialize update those payo utility functions of th...