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—A folded multitap transmitter equalizer and multitap receiver equalizer counteract the losses and reflections present in the backplane environment. A flexible 2-PAM/4-PAM clock data recovery circuit uses select transitions for receive clock recovery. Bit-error rate less than 10 15 and power equal to 40 mW/Gb/s has been measured when operating over a 20-in(More)
Joseph T. Wu, Edward S. K. Ma, Cheuk Kwong Lee, Daniel K. W. Chu, Po-Lai Ho, Angela L. Shen, Andrew Ho, Ivan F. N. Hung, Steven Riley, Lai Ming Ho, Che Kit Lin, Thomas Tsang, Su-Vui Lo, Yu-Lung Lau, Gabriel M. Leung, Benjamin J. Cowling, and J. S. Malik Peiris Departments of Community Medicine and School of Public Health, Microbiology, Medicine, and(More)
Nicotinic acid adenine dinucleotide phosphate (NAADP) has been shown to induce Ca(2+) release in numerous cellular models, ranging from marine invertebrates to mammals. However, endogenous levels of this pyridine dinucleotide have yet to be demonstrated. In the sea urchin egg, NAADP receptors are abundant but have the peculiarity of being inactivated at low(More)
To achieve high bit rates link designers are using more sophisticated communication techniques, often turning to 4PAM transmission or decision-feedback equalization (DFE). Interestingly, with only minor modification the same hardware needed to implement a 4PAM system can be used to implement a loop-unrolled single-tap DFE receiver. To get the maximum(More)
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BACKGROUND In an emerging influenza pandemic, estimating severity (the probability of a severe outcome, such as hospitalization, if infected) is a public health priority. As many influenza infections are subclinical, sero-surveillance is needed to allow reliable real-time estimates of infection attack rate (IAR) and severity. METHODS AND FINDINGS We(More)
Common-mode signaling is effectively used to create a backchannel communication path over the existing pair of wires for a self-contained adaptive differential high-speed link transceiver cell [1]. A transceiver chip was designed in 0.13µm CMOS to demonstrate the feasibility of simultaneous differential and common-mode signaling. The design uses a(More)
BACKGROUND The house dust mite Blomia tropicalis (B. tropicalis) was found to be the most prevalent domestic mite in Singapore. However, its pathogenicity in allergic airway diseases remains to be investigated. METHODS Twenty adults with persistent allergic rhinitis (PAR) were studied. Five had a history of asthma, and all were asymptomatic except one who(More)