Po-Tsang Chen

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Syncytin is an envelope protein of the human endogenous retrovirus family W (HERV-W). Syncytin is specifically expressed in the human placenta and mediates trophoblast cell fusion into the multinucleated syncytiotrophoblast layer. It is a polypeptide of 538 amino acids and is predicted to be posttranslationally cleaved into a surface (SU) subunit and a(More)
Flash storage has been a standard component in Android devices. Recent research has reported that application data management in Android involves frequent fsync() operations. The current fsync() implementations, including those of ext4 and F2FS, have several common drawbacks. Specifically, ext4 commits a transaction every time to sync a file, whereas F2FS(More)
OBJECTIVE To present the perinatal findings and molecular genetic analysis of two siblings with Ellis-van Creveld (EvC) syndrome. MATERIALS, METHODS AND RESULTS A 33-year-old woman, gravida 3, para 1, was referred for genetic counseling at 18 gestational weeks because of recurrent fetal skeletal dysplasia. Two years previously, she had delivered a 1,316-g(More)
The paper presents the design and realization of a frequency synthesizer for 60-GHz wireless communication systems. Implemented with 90nm CMOS technology, the phase-locked loop based frequency synthesizer includes a high-frequency voltage-controlled oscillator (VCO), a high-speed divider, a programmable divider, a charge pump, and a frequency tripler. The(More)
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