Published by the IEEE Computer Society 0018-9162/11/$26.00 © 2011 IEEE For many computer architects, the first challenge takes priority. After all, we are used to operating under the protection of well-designed abstractions that permit our architectures to accommodate anything from ideal switches to the least palatable of devices that might be foisted upon us. However, the nanodevices that prev...

Attention is considered a pre requisite to achieve greater motivation in the classroom. However, empirical evidence of this relationship in educational setting is scarce since the measurement of attention requires specialized equipment such as clinical electroencephalograms (EEG) or fMRI. With the advent of portable, consumer oriented EEG it is now possible to estimate levels of attention and s...

OBJECTIVE Aspects of neonatal care that are the subject of evolving guidelines include hepatitis B virus (HBV) immunization; discharge follow-up recommendations; and prevention of perinatal group B streptococcal (GBS) disease. In 2007, a university hospital's standardized newborn nursery orders were changed to reflect current recommendations in these areas. The objective of the study was to det...

We propose to apply a complexity theoretic notion of feasible learnability called "polynomial learnability" to the evaluation of grammatical formalisms for linguistic description. Polynomial learnability was originally defined by Valiant in the context of boolean concept learning and subsequently generalized by Blumer et al. to infinitary domains. We give a clear, intuitive exposition of this n...

Purpose: To review the occurrence of macular retinal folds following retinal detachment surgery. Method: Review of the literature. Results: Macular folds have been reported in up to 3% of cases postoperatively. Risk factors are tamponading gas bubble, large exoplants, detachments with bullous configuration or running through the fovea, and incomplete drainage of subretinal fluid. Preventive mea...

0018-9251/84/0700-0306 $1.00 ) 1984 IEEE Systems engineering is the design of the whole as distinguished from the design of the parts. The systems engineer harmonizes optimally an ensemble of subsystems and components-machines, communication networks, humans, space-all related by channeled flows of information, mass, and energy. Of course, the designer of a chair, a watch, or even a necktie dea...

In Logic Programming, ”negation as failure” has become an important area of research. ”Negation as failure” is ubiquitous in deductive databases ([Minker, 1987]), in truth maintenance systems ([Doyle, 1979]), and in default logic ([Reiter, 1980]). It is a naturally occurring “non-monotonic logic”. The original (breadth-first) PROLOG is a (monotonic) classical logic of pure Horn clauses. There, ...

BACKGROUND/AIMS Low folate intake may increase risk of colorectal cancer by altering gene-specific methylation in the colon. We determined whether supplementation with physiological doses of folate could alter methylation in the oestrogen receptor 1 (ESR1) and mutL homolog 1 (MLH1) genes in colonic mucosa of subjects with colorectal adenoma. METHODS This was a randomised, double-blind, placeb...

We present a logical language which extends the syntax of positive Horn clauses by permitting implications in goals and in the bodies of clauses. The operational meaning of a goal which is an implication is given by the deduction theorem: a goal D ⊃ G is provable from a program P if the goal G is provable from the larger program P ∪ {D}. This paper explores the qualitative nature of this extens...

In the United States, cirrhotic patients with known or suspected hepatocellular carcinoma (HCC) are prioritized for liver transplantation. Noninvasive criteria for the diagnosis of HCC rely on arterial enhancement of a mass. The aim of this study was to determine whether clinical, laboratory, and / or radiologic data can improve the prediction of HCC in cirrhotic patients with an arterially-enh...