Repetitive questioning is due to an impaired episodic memory and is a frequent, often presenting, problem in patients with Alzheimer's disease (amnestic type). It is due to the patients' difficulties learning new information, retaining it, and recalling it, and is often aggravated by a poor attention span and easy distractibility. A number of factors may trigger and maintain repetitive question...

The standard analysis of indefinites (e.g. Russell or more recently in the Discourse Representation Theory) views them as introducing a new discourse referent that is considered as independent from both the textual and extra-textual context. Still it can be observed that in many situations such as dialogue there are cases where sequences of indefinites are explicitly referring to the same entit...

The Equivalence Principle (EP) is not one of the “universal” principles of physics (like the Action Principle). It is a heuristic hypothesis which was introduced by Einstein in 1907, and used by him to construct his theory of General Relativity. In modern language, the (Einsteinian) EP consists in assuming that the only long-range field with gravitational-strength couplings to matter is a massl...

Widespread adoption of uniform standards is essential to the smooth operation of our modern global economy. When private organizations develop such standards, copyright protection of those standards often creates a conoict between private intellectual property rights and society’s need for standards. This conoict is especially apparent when a local or state government adopts a privately drafted...

Yahoo! Answers represents a new type of community portal that allows users to post questions and/or answer questions asked by other members of the community, already featuring a very large number of questions and several million users. Other recently launched services, like Microsoft’s Live QnA and Amazon’s Askville, follow the same basic interaction model. The popularity and the particular cha...

Repetitive questioning is a major problem for caregivers, particularly taxing if they are unable to recognize and understand the reasons why their loved one keeps asking the same question over and over again. Caregivers may be tempted to believe that the patient does not even try to remember the answer given or is just getting obnoxious. This is incorrect. Repetitive questioning is due to the u...

Each year, 115 million tons of coal combustion products (CCPs) are produced in the United States, 90% of them by electric utilities. CCPs are mainly ash, usually mixed with wastes from pollution control scrubbers (consisting of particulate matter and neutralizing lime), coal piles, and other sources. In 1993, the U.S. Environmental Protection Agency (EPA) exempted pure coal ash from Subtitle C ...

This paper presents a sentence extraction method based on Concept Coupling Model, a language model for handling natural language sentence structures. Sentence extraction is performed by retrieving sentences from texts that contain the explicit answer to a user query. The sentence structure representation scheme provided by the model facilitates the retrieval operation which is basically a struc...