The increasing prevalence of ageing stepfamilies and the potential stepchildren to act as a source support for older parents have increased interest in long-term intergenerational step relationships. Applying life-course perspective combined with Simmel’s theorizing on social dynamics, this exploratory study aims investigate preconditions cohesion is based interviews 13 parents, aged 66–79, who...

It is my privilege as President of the American College of Chest Physicians to greet you tonight and commend you for the splendid achievements of the Missouri Chapter of the College. Furthermore, I am grateful for the opportunity of being with you-my personal friends-at this dinner culminating a day of scientific discussion. I will discuss most briefly some of the indeterminate factors I consid...

– An important problem in designing infrastructure to support business-to-business integration (B2Bi) is how to cancel a long-running interaction (either because the user has changed their mind, or in response to an unrecoverable failure). We review the fault-handling and compensation mechanism that is now used in most workflow products and business process modelling standards. We then use an e...

Tomasello et al. provide a new account of cultural uniqueness, one that hinges on a uniquely human motivation to share intentionality with others. We favor an alternative to this motivational account – one that relies on a modular explanation of the primate intention-reading system. We discuss this view in light of recent comparative experiments using competitive intention-reading tasks. In the...

We study the effects of wireless channel burstiness on TCP. We measure TCP throughput over single-hop link traces from MIT’s 802.11b Roofnet and Intel Berkeley’s 802.15.4 Mirage testbeds. We observe that links with the same packet reception ratio (PRR) have throughput variations of up to 320%. We find that differences in throughput are accompanied by differences in link burstiness. Using the Gi...