The capacity of working memory (WM), a short-term buffer for information in the brain, is limited. We suggest a model for sequential WM that is based upon winnerless competition amongst representations of available informational items. Analytical results for the underlying mathematical model relate WM capacity and relative lateral inhibition in the corresponding neural network. This implies an ...

In this paper GI/G/1 queueing systems with buffer overflows are involved. First, we will give asymptotic expressions for the long-run fraction of rejected customers, in case the buffer capacity K grows large. Furthermore, we give a non-trivial upper and lower bound for this fraction for all K larger than some constant. Finally, we treat a method to speed up the simulation of the fraction of rej...

The capacity of the (DSL) access network keeps increasing, while at the same time there is a trend to support, on top of web browsing applications that spurred the initial popularity of the Internet, more and more applications (e.g. peer-to-peer, time-shifted TV) that require the transport of long-lived flows over such an access network. During the transport of these long-lived flows associated...

Example 4 Data communication. In computer communication networks standard packages called cells are transmitted over links from one switch to the next. In each switch incoming cells can be buffered when the incoming demand exceeds the link capacity. Once the buffer is full incoming cells will be lost. What is the cell delay at the switches? What is the fraction of cells that will be lost? What ...

BACKGROUND Climateric is considered to be a natural phase of life which by definition is the period of life starting from decline in ovarian activity until after the end of ovarian function. It is accompanied by various health consequences that include the changes in saliva too. This study was carried out to evaluate the salivary flow rate, pH, buffering capacity in pre-menopausal, post-menopau...

A novel pH-responsive superabsorbent hydrogel based on gelatin was prepared through crosslinking copolymerization of poly (acrylic acid) and poly (itaconic acid). The copolymerization conditions including monomers, initiator, gelatin and crosslinker concentration, reaction temperature, and neutralization percent were systematically optimized to achieve a hydrogel with swelling capacity as high ...