Many cost-benefit decisions reduce to simple choices between approach or avoidance (or active disregard) to salient stimuli. Physiologically, critical factors in such decisions are modulators of the homeostatic neural networks that bias decision processes from moment to moment. For the predatory sea-slug Pleurobranchaea, serotonin (5-HT) is an intrinsic modulatory promoter of general arousal an...

Magnus Jonsson, MEMBER SPIE Halmstad University Center for Computer Systems Architecture Box 823 S-301 18 Halmstad Sweden E-mail: [email protected] Abstract. Ring networks made of fiber-ribbon point-to-point links are proposed. The first network is a control-channel based network in which one fiber in each link joins with others to form a control-channel ring. This ring improves performa...

Background: COVID-19 has disrupted and adversely affected supply chains worldwide. A global chain network that considers disruptions is needed. This study strategically analyzes the economic structural effects of disruption on a with customs duty trans-pacific partnership (TPP) agreement. Methods: We present cost minimization model which helps in understanding difficulty supplying materials or ...

The provision of real time services through a Packet Switched Network, requires the adoption of end-toend synchronization methods. Several of these methods, are compared and a specific hardware solution is discussed. Results obtained through a specially designed Simulation Programme are included, for several network time delay jitter distributions and synchronization methods. These results are ...

Deflection Routing is a key technique to resolve contention in optical burst-switched networks. Considering three different deflection routing strategies, we investigate the influence of network topology and of burst length on network performance in terms of dropping probability. OCIS codes: (060.0060) Fiber optics and optical communications; (060.4250) Networks

In this paper we deal with mapping performance-oriented IP services such as Integrated Services (IntServ) or Differentiated Services (DiffServ) onto network performance parameters for cell-switched transport networks, as for example ATM. The impact of translating IP performance parameters into ATM network services is analyzed and the detrimental effects of careless mappings are illustrated. The...

Optical networks became very important in the latest years, thanks to their high traffic capacity, because of the continuous growth of total exchanged data and the request of real-time communication. Since they have (relatively) long adaptation times, this technology is not inherently the most suitable to carry bursty traffic like the current one. Hybrid networks try to get the best from optica...

Recent years have seen a dramatic increase in demand for mobile communication services and with the introduction of 2.5G services such as GPRS, this trend is expected to increase further. The highly dynamic and bursty nature of packet switched services such as GPRS will require a much more flexible method of radio resource management so as to maximise system resources compared to currently empl...

The Intra-Site Automatic Tunnel Addressing Protocol (ISATAP) connects IPv6 hosts/routers over IPv4 networks. ISATAP views the IPv4 network as a link layer for IPv6 and views other nodes on the network as potential IPv6 hosts/routers. ISATAP supports automatic tunneling and a tunnel interface management abstraction similar to the NonBroadcast, Multiple Access (NBMA) and ATM Permanent/Switched Vi...