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In this study, the oestrogen agonist/antagonist action of 4-hydroxytamoxifen (OHT; 1 x 10(-6) M) and 17beta-oestradiol (E(2); 1 x 10(-8) M) were assessed on the oestrogen receptor (ER)-positive epithelial cell line (Ishikawa) with respect to cell proliferation, and to gene and protein expression. qRT-PCR and western blotting confirmed that Ishikawa cells(More)
— An analysis of the sending rate of TCP control over Terabit per second rate links illustrates how future optical network characteristics, such as higher bitrates, network congestion, and larger data loads, would affect performance. We have implemented a model to allow increased sending rate for TCP. It is shown that even if the network bitrate is higher(More)
IPTV services are the fastest growing television services in the world today. This is a bandwidth intensive service, requiring low latency and tight control of jitter. To guarantee the quality of service required, service providers opt to multicast all TV channels at all times to everywhere. However, a significant number of channels are rarely watched, so(More)
One of the major concerns of IPTV network deployment is channel change delay (also known as zapping delay). This delay can add up to 2 s or more, and its main culprits are synchronisation and buffering of the media streams. Proving the importance of the problem is the already significant amount of literature addressing it. We start this paper with a survey(More)
This study was aimed to establish whether tamoxifen binds irreversibly to uterine DNA when given to women. Patients were given a single therapeutic dose of [(14)C]tamoxifen citrate orally (20 mg, 0.37 or 1.85 MBq) approximately 18 h prior to hysterectomy or breast surgery. Nonmalignant uterine tissue was separated into myometrium and endometrium. DNA and(More)
One of the major concerns of IPTV network deployment is channel switching (or zapping) delay. This delay can add up to two seconds or more, and its main culprits are synchronisa-tion and buffering. By analysing an extensive dataset-comprising 255 thousand users, 150 TV channels, and covering a 6-month period-we have observed that most channel switching(More)
Today the energy consumption of Information and Communication Technology (ICT) industry is a significant contributor to the total energy demand in many developed countries. Recent studies show that the ICT industry is responsible for about 2% of the global emission of CO 2 and this percentage is predicted to increase as the Internet expands in bandwidth and(More)