In this paper we discuss an imporant aspect of human tutorial dialogue –the use of acknowledgments–and present a critique of earlier work on the use of acknowledgments in synthesizing tutorial dialogues for Intelligent Tutoring Systems (Evens et al, 1993). Our goal is to establish a more solid theoretical base for studying and synthesizing tutorial dialogues than what was used in the earlier wo...

Many studies have demonstrated that social relationships confer mental health benefits. This paper aims to identify whether and how reciprocity in social relationships predicts or is associated with mental health benefits as well as with continuity in elderly people's social relationships. The studies reviewed in this paper show that, among elders, being in a balanced or underbenefited reciproc...

Numerical Tic-Tac-Toe on the n × n board is a two player game where the numbers {1, 2, . . . , n2} are divided between the two players (usually as odds and evens) and then players alternately play by placing one of their numbers on the board. The first player to complete a line of n numbers (played by either player) that add up to n(n + 1)/2 is the winner. The original 3× 3 game was created and...

The sensor nodes deployed in wireless sensor networks are extremely power constrained, so prolonging the lifetime of the entire networks is mainly considered in the design. This paper analyzes the disadvantages of excessive clustering time because of the possible uneven cluster density. As a result, we present ASMC algorithm and determine (a) first-run presetting cluster heads (CHs) number, (b)...

2001 3 ACKNOWLEDGMENTS I would like to thank my mentor, Professor Martha W. Evens, so much for her patience and guidance. I will never forget that she is always there whenever I need help. I also thank all of the CIRCSIM-Tutor project members and our domain experts at Rush Medical College. They have been so helpful with research and so friendly in life. I really appreciate all of the wonderful ...

In the first section we discuss Morita invariance of differentiable/algebroid cohomology. In the second section we extend the Van Est isomorphism to groupoids. As a first application we clarify the connection between differentiable and algebroid cohomology (proved in degree 1, and conjectured in degree 2 by Weinstein-Xu [50]). As a second application we extend Van Est’s argument for the integra...

The main purpose of this paper is to explore whether and how the amount of firmsponsored Continuing Vocational Training (CVT) provided in Sweden from 1999 onwards was influenced by institutional conditions. The Swedish labour market is characterised by a relatively large amount of publicly subsidised CVT. How this affects the incidence of firm-sponsored CVT ultimately depends on whether publicl...

Purpose: Therapeutic strategies to enhance the efficacy of radioimmunotherapy have not been explored. Motexafin gadolinium is a novel anticancer agent that targets redox-dependent pathways and enhances sensitivity of tumor cells to ionizing radiation. Experimental Design:We did preclinical studies examining motexafin gadolinium combined with rituximab and/or radiation in lymphoma cells. We subs...

Let U/K represent a connected, compact symmetric space, where θ is an involution of U that fixes K, φ : U/K → U is the geodesic Cartan embedding, and G is the complexification of U. We investigate the intersection, studied by Pickrell, of φ(U/K) with the Birkhoff decomposition of G corresponding to a θ-stable triangular, or LDU, factoriztion of Lie(G). When g ∈ φ(U/K) is generic, the factorizat...

In This Issue Bert R. Boyce IN MEMORIAM Jean Tague-Sutcliffe, 1931-1996 Mike Nelson RESEARCH Design and Implementation of Automatic Indexing for Information Retrieval with Arabic Documents Ismaii Hmeidi, Ghassan Kanaan, and Martha Evens Information Using Likeness Measures Martin FrickP Types and Levels of Collaboration in Interdisciplinary Research in the Sciences Jian Qin, F. W. Lancaster, and...