We study a stream of traac or message as it is transferred over an ATM connection consisting of burst reducing servers. A message is modeled as a deterministic uid ow, and an ATM node is modeled as a server which allocates bandwidth to messages. A message's burstiness curve b() is the buuer size needed to prevent cell loss if it is served at rate. A server is burst reducing if its output messag...

This paper is an exploration of numerical methods for solving initial-value problems for ordinary differential equations. We look in detail at one “simple” problem, namely the leaky bucket, and use it to explore the notions of explicit marching methods vs. implicit marching methods, interpolation, backward error, and stiffness. While the leaky bucket example is very well known, and these topics...

We propose a progressively reliable transport protocol for delivery of delay-sensitive multimedia over Internet connections with wireless access links. The protocol, termed “Leaky” ARQ, initially permits corrupt packets to be leaked to the receiving application and then uses retransmissions to progressively refine the quality of subsequent packet versions. A Web server would employ Leaky ARQ to...

Membrane currents were recorded from the wild type and two pawn mutants of the pwA complementation group in Paramecium tetraurelia under a voltage clamp. Most currents are not changed by the mutations. Transient inward currents of a leaky mutant, pwA132, upon step depolarizations are less than those in the wild type. The inward transient is completely lacking in a non-leaky mutant, pwA500. The ...

Gut microbiota is formed by ten of trillions of microorganisms with at least 1000 different species of known bacteria. One - third of an individual gut microbiota is common to most people, while two - thirds are specific to him. Growing amount of evidence indicates that gut microbiota characteristics may play an important role in mental dysfunctions. Molecular mimicry between several key neurop...