Current mechanisms for adopting and supporting high-tech augmentative alternative communication (AAC) within special-education appear limited in their success, despite recognition of the potential benefits they represent young emerging communicators. Prior research this field has been restricted to discrete survey or interview methodologies. We present a five-month mixed-methods ethnographic st...

Because advance directives are not yet the norm, end-of-life decisions for patients without medical decision-making capacity are made regularly within discussions between the patient's physician and family. Communication and decision making in these situations require a complex integration of relevant conceptual knowledge of ethical implications, the principle of surrogate decision making, and ...

In this paper, we propose a new approach to establish Singleton Arc Consistency (SAC) on constraint networks. While the principle of existing SAC algorithms involves performing a breadth-first search up to a depth equal to 1, the principle of the two algorithms introduced in this paper involves performing several runs of a greedy search (where at each step, arc consistency is maintained). It is...

We consider a join-the-shortest-queue model which is as follows. There are K single FIFO servers and M arrival processes. The customers from a given arrival process can be served only by servers from a certain subset of all servers. The actual destination is the server with the smallest weighted queue length. The arrival processes are assumed to obey a large deviation principle while the servic...

We consider a join-the-shortest-queue model which is as follows. There are K single FIFO servers and M arrival processes. The customers from a given arrival process can be served only by servers from a certain subset of all servers. The actual destination is the server with the smallest weighted queue length. The arrival processes are assumed to obey a large deviation principle while the servic...

One can define several properties of wave equations that correspond to the absence of tails in their solutions, the most common one by far being Huygens’ principle. Not all of these definitions are equivalent, although they are sometimes assumed to be. We analyse this issue in detail for linear scalar waves, establishing some relationships between the various properties. Huygens’ principle is a...

In this paper, we propose a new approach to establish Singleton Arc Consistency (SAC) on constraint networks. While the principle of existing SAC algorithms involves performing a breadth-first search up to a depth equal to 1, the principle of the two algorithms introduced in this paper involves performing several runs of a greedy search (where at each step, arc consistency is maintained). It is...