Since my topic is the future of string theory, I will discuss issues and problems that are currently unresolved and where there is still confusion, doubt, and uncertainty. However, if I were to do only that, it would give a distorted view of a subject that has undergone tremendous progress over the past thirty years. Therefore, to give a more balanced picture, I have decided to begin by present...

Polarities are used to sanction grammar fragment combination in high level tree-based formalisms such as eXtenssible MetaGrammar (XMG) and polarized unification grammars (PUG). We show that attaching polarities to tree nodes renders the combination operation non-associative, and in practice leads to overgeneration. We first provide some examples of non-associative combination operators in exist...

I N SOCIAL LEGISLATION i t is impossible to cast up accounts i n the exact sense t h a t we do when the mat ter is ent i re ly one of dollars and cents, w i t h out human values to be taken in to consideration. Nevertheless, i t seems to me tha t i n the field of social legisla t i on i t is wel l for us t o pause occasionally to see how far we have come and what we might do to move a l i t t l...

as in developing insight?although there is no discussion of occupational rehabilitation. They also discuss the difficulties which a therapeutic team may encounter when caring for the patients, rivalries, and conflicts over setting limits, for example. Drugs do not get much of a mention; but one patient was put on stelazine three and a half years after admission and appeared to improve remarkabl...

Weather-related risks can substantially affect the crop volume depending on time and intensity of agricultural operations performed by the farmer. However, decisions under uncertainty are in some way also liable to another risk – that of excessively optimistic or pessimistic estimation of the decision maker. The paper presents results of optimistic and pessimistic farmer’s agricultural operatio...

False memories, or recollections that are factually incorrect but strongly believed, remain a source of confusion for both psychiatrists and neurologists. We propose model for false memories based on recent experimental investigations, particularly when analyzed in comparison to confabulations, which are the equivalent of false memories from neurological disease. Studies using the Deese/Roeding...

We present a corpus of spoken dialogues between students and an adaptive Wizard-of-Oz tutoring system, in which student uncertainty was manually annotated in real-time. We detail the corpus contents, including speech files, transcripts, annotations, and log files, and we discuss possible future uses by the computational linguistics community as a novel resource for studying naturally occurring ...