Hsin-Liang Chen

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Four known compounds have been isolated from the stems of Liriodendron tulipifera, and the structures of these pure constituents were determined using spectroscopic analysis. Isolated compounds were screened for free radical scavenging ability, metal chelating power assay and ferric reducing antioxidant power assay (FRAP). The anti-tyrosinase effects of L.(More)
BACKGROUND Neocallimastix patriciarum is one of the common anaerobic fungi in the digestive tracts of ruminants that can actively digest cellulosic materials, and its cellulases have great potential for hydrolyzing cellulosic feedstocks. Due to the difficulty in culture and lack of a genome database, it is not easy to gain a global understanding of the(More)
BACKGROUND Cellulose, which is the most abundant renewable biomass on earth, is a potential bio-resource of alternative energy. The hydrolysis of plant polysaccharides is catalyzed by microbial cellulases, including endo-β-1,4-glucanases, cellobiohydrolases, cellodextrinases, and β-glucosidases. Converting cellobiose by β-glucosidases is the key factor for(More)
BACKGROUND To achieve an economical cellulosic ethanol production, a host that can do both cellulosic saccharification and ethanol fermentation is desirable. However, to engineer a non-cellulolytic yeast to be such a host requires synthetic biology techniques to transform multiple enzyme genes into its genome. RESULTS A technique, named Promoter-based(More)
Whether turns play an active or passive role in protein folding remains a controversial issue at this juncture. Here we use a photolabile cage strategy in combination with laser-flash photolysis and photoacoustic calorimetry to study the effects of different turns on the kinetics of beta-hairpin refolding on a nanosecond time scale. This strategy opens up a(More)
AbstrAct This chapter examines the impact of multimodal, computer-mediated communication strategies on instruction in higher education. Colleges and universities have realized positive effects of using computer mediated communication in instruction, but these effects are often accompanied by unintended, unexpected, and surprising changes to instructional(More)
BACKGROUND As a strong fermentator, Saccharomyces cerevisiae has the potential to be an excellent host for ethanol production by consolidated bioprocessing. For this purpose, it is necessary to transform cellulose genes into the yeast genome because it contains no cellulose genes. However, heterologous protein expression in S. cerevisiae often suffers from(More)
Several species of Magnoliaceae and Annonaceae are used in Traditional Chinese Medicine. (-)-Anonaine, isolated from several species of Magnoliaceae and Annonaceae, presents antiplasmodial, antibacterial, antifungal, antioxidation, anticancer, antidepression, and vasorelaxant activity. This article provides an overview of the pharmacological functions of(More)
In this paper, we propose a time division method to solve the congestion control problem for an event-driven sensor network. In this method, a node adjusts time (therefore bandwidth) assigned to each upstream node by employing a dynamic Time Division Multiple Access (TDMA) approach. The purpose is to efficiently use resources available to the system and(More)