One way of measuring of the success of a technology is the degree to which it has found acceptance in "real world" companies. These companies will only adopt and continue to use new technology if it lets them solve "real world" problems more effectively than alternative methods and techniques. Critical to this success is the way in which the technology is developed and applied to solve business...

Th e method of recursive coordinate reduction (RCR) off ers solutions to the forward problem of multibody dynamics at a cost in which the number of operations is linear in both the number of generalized coordinates, n, and the number of independent algebraic constraints, m (e.g., O(n + m)). However, the RCR is presently restricted in applicability (albeit broad) and susceptible to formulation s...

AIMS To examine the childhood overweight and obesity prevalence trends between 1974 and 2003 and to assess whether these trends relate to parental social class and household income. METHODS A school based and a general population health survey: the National Study of Health and Growth in 1974, 1984, and 1994, and the Health Survey for England, yearly from 1996 to 2003. Participants were 14,587...

Virtual reality has long been an indoor affair. Whether constrained by stationary computers or displays, or by the limitations of our tracking technologies, researchers typically build virtual environments that work within a single physical room or a portion of a room. Even distributed virtual reality systems usually interconnect two or more such indoor spaces. Meanwhile, as computers grow ever...

a Rotman School of Management and Department of Economics, University of Toronto, 105 St. George Street, Toronto, Ontario, M5S 3E6, Canada b Canadian Institute for Advanced Research (CIFAR), 180 Dundas Street West, Suite 1400, Toronto, Ontario, M5G 1Z8, Canada c NBER, 1050 Massachusetts Avenue, Cambrigde, MA, 02138-5398, USA d Department of Economics, Michigan State University, Marshall-Adams H...

The purpose of this paper is to investigate acoustic characteristics which distinguish ejectives from pulmonic stops in Ingush (a Northeast Caucasian language), and to compare Ingush ejectives to those of other languages. The articulation of ejectives is relatively well understood, but their acoustic effects are less clear. Working with a native speaker of Ingush, ejectives and pulmonic voicele...

The available type material of Phlebotominae (Diptera, Psychodidae) deposited in the "Coleção de Flebotomíneos" of the Instituto Evandro Chagas (ColFleb IEC) is now presented in an annotated catalogue comprising a total of 121 type specimens belonging to 12 species as follow: Nyssomyia richardwardi (2 female paratypes), Nyssomyia shawi (9 male and 25 female paratypes), Nyssomyia umbratilis (fem...