In the mobile IP-enabled wireless LAN (WLAN), packet transfer is interrupted due to the handoff of a mobile node at the link and network layers, which results in burst packet loss. This transient behavior is hurting time-critical streaming media applications. Many ideas mitigating the interruption have been suggested such as reducing handoff latency and minimizing packet losses. Also, in the ap...

Peer-to-peer systems contain a collection of equivalent entities that form an application-layer overlay network. Each entity acts as client, server, and overlay network router. Peer-to-peer systems enable the rapid development of distributed applications; in short order, peer-to-peer file sharing has become one of the most popular Internet applications. There are two primary functions in a peer...

This paper presents efficiency analysis of the power buffering in common voltage bus systems. Operation of the power buffering is briefly described with the power control experiments. The efficiency measurement setup and performed measurements from the charging and discharging events of the ultracapacitor module with the dc-dc converter are presented. As a result, the efficiency map of the dc-d...

This laboratory study explored buffering and recovery effects of viewing urban green and built spaces on autonomic nervous system activity. Forty-six students viewed photos of green and built spaces immediately following, and preceding acute stress induction. Simultaneously recorded electrocardiogram and impedance cardiogram signal was used to derive respiratory sinus arrhythmia (RSA) and pre-e...

Saliva buffering test is in need of improvements. This article illustrates the most commonly used saliva buffering capacity tests and its major problems. Starting with Ericsson and his laboratory buffer capacity test and all the way to Kitasako a lot of issues are to release. The aim of this paper is to put saliva buffering tests up to serious discussion.

Expression of recombinant proteins and drugs in Pichia pastoris has been in development since the late 1980s and the number of recombinant proteins produced in P. pastoris has increased significantly in the past several years. Unlike bacteria, this strain is capable of producing complex proteins with post translational modifications such as correct folding, glycosylation, proteolytic maturation...

Social isolation is a major source of stress and can lead to activation of the hypothalamic-pituitary-adrenal (HPA) axis. The presence of a close social partner can reduce the magnitude of the HPA-axis response during a stressor, a phenomenon known as social buffering. The oxytocin (OXT) system has been identified as one candidate for mediating social buffering due to its role in the facilitati...