Coupling GSN to SONET-OC48/SDH16

Today a new standard, the Gigabyte System Network (GSN), is emerging for computer networking using fast, full-duplex connections with an effective bandwidth of 800 MByte/s in each direction. This paper describes GSN, including the switch structure and its very low latency protocol called Scheduled Transfer (ST). An overview of available components will be given, together with some examples of how this standard can be applied in high end computing and in future high-energy physics data acquisition systems

Intra-Household Work Timing: The Effect on Joint Activities and the Demand for Child Care

This study examines if couples time their work hours and how this work timing influences child care demand and the time that spouses jointly spend on leisure, household chores and child care. By using a innovative matching strategy, this studies identifies the timing of work hours that cannot be explained by factors other than the partners' potential to communicate on the timing of their work. The main findings are that couples with children create less overlap in their work times and this effect is more pronounced the younger the children. We find evidence for a togetherness preference of spouses, but only for childless couples. Work timing also influences the joint time that is spent on household chores, but the effect is small. Finally, work timing behavior affects the demand for informal child care, but not the demand for formal child care

Income distribution: Second thoughts

As a follow-up of his book on income distribution the author reformulates his version on the scarcity theory of income from productive contributions. The need to introduce into an earnings theory several job characteristics, non-cognitive as well as cognitive, and the corresponding personality traits is stressed, the latter subdivided into innate and learnable capabilities. The theory is presented in two alternative mathematical versions: one where job and person characteristics are continuous and one where they have discrete values and their frequencies assume continuous values. Although, mainly in the United States, numerous empirical inquiries have been made, job characteristics and the corresponding personal characteristics have not been included in sufficient number. I want to express my profound gratitude to Professor Robert H. Haveman, who not only published a deep-delving review article on my book Income Distribution: Analysis and Policies but also commented on an earlier text of the present article. I also owe a great debt to Professor Jan Pen who in a long series of discussions challenged a number of my concepts and figures. Finally I want to thank Dr. S. K. Kuipers for helpful comments on an earlier draft