Blood pressure, heart rate, rate pressure product, heart rate variability, stroke volume, cardiac output, peripheral resistance, and cardiac contractility derived from impedance cardiography were obtained from 15 young and 15 old males during and after the Stroop task. The old group demonstrated significantly higher absolute heart rate, systolic and mean arterial pressure, peripheral resistance...

We formulate this task as an inverse problem, specifying a well-defined cost function that has to be optimized under constraints. We show that our formulation includes the uniformity and independence assumptions as a special case, and that it can achieve better reconstruction results if we maximize the smoothness as opposed to the uniformity. In our experiments on real and synthetic datasets, t...

User applications and data in volatile memory are usually lost when an operating system crashes because of errors caused by either hardware or software faults. This is because most operating systems are designed to stop operation when some internal errors are detected irrespective of the possibility that user data and applications might still be intact and recoverable. Techniques like exception...

This paper looks at empty arguments in Korean, and the constraints that can be used in recovering their meaning, or referent. We look at scrambling to provide insights into the process by which empty arguments can be recovered, and provide a computational algorithm based on local and global information that takes advantage of the semantic restrictions placed by the verb. We look at recovering e...

Recovery activities like logging checkpointing and restart are used to restore a database to a consistent state after a system crash has occurred Recovery related overhead is likely to form a bottleneck in a main memory database since I O activities are performed for the sole purpose of ensuring data durability In this paper we present recovery algorithms which reduce recovery related overheads...