Ming-Hsuan Wu

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Our continuing effort of searching bioactive substances from the Formosan soft coral Cladiella australis has led to the isolation of a bioactive substance austrasulfone (1), which possesses significant neuroprotective activities. A straightforward synthesis of 1 was achieved by a two-step reaction sequence. Dihydroaustrasulfone alcohol (3), the synthetic(More)
The EtOAc extract of a Taiwanese soft coral, Caldiella australis, yielded four new eunicellin-based diterpenoids, australins A-D (1-4). The chemical structures of these metabolites were determined on the basis of extensive spectroscopic (including 1D and 2D NMR) analyses and by comparison of their NMR spectral data with those of related metabolites.(More)
This dissertation sets out to describe, interpret, and understand how an urban K-8 charter school in Philadelphia that serves linguistically, culturally, and racially diverse students from low-income communities seeks to offer a type of education that recognizes its students' minority status in the broader society and exceeds the education typically(More)
Interest in providing Mandarin foreign language at K-12 schools in the United States has grown steadily since the language was identified as critical to the U.S. finance and social security. However, the shortage of qualified Mandarin teachers is widely recognized as the key bottleneck to building capacity in Mandarin education. Drawing from research on(More)
The study is exploring the Spa service demand and features in wellness tourism for seniors. In addition to the senior of respondents, the 50-64 years (pre-senior) of the respondents are also considered to compare the two types of sample features and the differences of Spa service demand .As following constructs the Spa service system design and management(More)
We present an alternative scheme for determining the frequencies of cesium (Cs) atom 6S-8S Doppler-free transitions. With the use of a single electro-optical crystal, we simultaneously narrow the laser linewidth, lock the laser frequency, and resolve a narrow spectrum point by point. The error budget for this scheme is presented, and we prove that the(More)
With 3D stacking design, high-performance low-power complex design is practical. However, due to the high design costs and extensive design efforts, 3D technology is not broadly adopted. For 3D stacking designs, most chip failures are due to power supply problems of voltage drop and noisy voltage. A feasible low-cost 3D stacking design method is proposed.(More)
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