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Search Results: 1 - 10 of 87766 matches for " WU Wen-hui "
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Interactions between House Prices, Stock Prices and Monetary Policy—Using Recursive VAR  [PDF]
Chun-Chang Lee, Chih-Min Liang, Wen-Hui Wu, Shu-Man You
American Journal of Industrial and Business Management (AJIBM) , 2013, DOI: 10.4236/ajibm.2013.38074
Abstract:

This paper uses a recursive VAR model to analyze the effects of monetary policy shock and the role of house price and stock price shocks. The data come from the first quarter of 1993 to the second quarter of 2010 in Taiwan. There is empirical evidence suggesting that house prices and stock prices do not play the role of a transmission mechanism for monetary policy shocks. When house prices increase, stock prices undergo a simultaneous and significant increase, but this effect gradually disappears. As house prices increase, the interest rate is simultaneously and positively affected; this effect is insignificant until after the second quarter. As stock prices increase, house prices are positively affected, which is consistent with the sign of the expected value, but the effect is insignificant. Under increasing stock prices, the interest rate simultaneously increases, and this effect is significant during the third and tenth quarters.

 

Antioxidant Properties of Polysaccharide from the Brown Seaweed Sargassum graminifolium (Turn.), and Its Effects on Calcium Oxalate Crystallization
Chao-Yan Zhang,Wen-Hui Wu,Jue Wang,Min-Bo Lan
Marine Drugs , 2012, DOI: 10.3390/md10010119
Abstract: We investigated the effects of polysaccharides from the brown seaweed Sargassum graminifolium (Turn.) (SGP) on calcium oxalate crystallization, and determined its antioxidant activities. To examine the effects of SGP on calcium oxalate crystallization, we monitored nucleation and aggregation of calcium oxalate monohydrate crystals, using trisodium citrate as a positive control. We assessed antioxidant activities of SGP by determining its reducing power, its ability to scavenge superoxide radicals, and its activity in the 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. The nucleation inhibition ratio of trisodium citrate and SGP was 58.5 and 69.2%, respectively, and crystal aggregation was inhibited by 71.4 and 76.8%, respectively. Increasing concentrations of SGP resulted in increased scavenging of superoxide anions and DPPH radicals (IC 50 = 1.9 and 0.6 mg/mL, respectively). These results suggest that SGP could be a candidate for treating urinary stones because of its ability to inhibit calcium oxalate crystallization and its antioxidant properties.
Mechanism Analysis of One-Dimensional Quasiperiodic Groove Drag-Reduction

XUE Wen-Hui,GENG Xing-Guo,LI Jie,LI Feng,WU Jun,

中国物理快报 , 2010,
Abstract:
The Complexity of Dual Models Problem of Propositional Linear Temporal Logics
命题线性时序逻辑的对偶模型问题的复杂性

WU Zhi-Lin,ZHANG Wen-Hui,
吴志林
,张文辉

软件学报 , 2007,
Abstract: In this paper, the concept of dual models of a propositional linear temporal logic formula is defined: A formula f has dual models if it has two models (namely two w-sequences of states) such that the assignments to atomic propositions at each position of them are dual. Then for various propositional linear temporal logics, the complexity of the problem deciding whether a formula f has dual models (denoted by DM) and the problem of determination of dual models in a Kripke-structure for a formula f (denoted by KDM) are investigated. It is shown that DM and KDM are NP-complete for the logic with F("Future") operator, and they are PSPACE-complete for the logic with F,X("Next") operators, the logic with U("Until") operator, the logic with U, S, X operators, and the logic with regular operators given by Wolper (known as extended temporal logic, ETL).
The Protection of Polysaccharide from the Brown Seaweed Sargassum graminifolium against Ethylene Glycol-Induced Mitochondrial Damage
Chao-Yan Zhang,Ting Kong,Wen-Hui Wu,Min-Bo Lan
Marine Drugs , 2013, DOI: 10.3390/md11030870
Abstract: The aim of the present study is to evaluate the protective effect of polysaccharide from the Brown Seaweed Sargassum graminifolium (SGP) on ethylene glycol-induced kidney damage and the mechanism of SGP-mediated protection. Mitochondrial lipid peroxidation, mitochondrial swelling, the activity of succinate dehydrogenase (SDH), ATPases and mitochondrial antioxidant enzymes was observed in hyperoxaluric rats. Administration of SGP (25, 100 and 400 mg·kg ?1, intragastrically) increased the activities of antioxidant enzymes, SDH and Na +/K +-ATPases, Ca 2+-ATPases, Mg 2+-ATPases, also decreased mitochondrial lipid peroxidation and mitochondrial swelling. SGP exhibited a protective effect by improving antioxidant enzymes and restoring mitochondrial dysfunction in the kidney of hyperoxaluric rats. It may be used as a promising therapeutic agent to provide superior renal protection.
Superiority of metastatic lymph node ratio to the 7th edition UICC N staging in gastric cancer
Long-Bin Xiao,Jian-Xing Yu,Wen-Hui Wu,Feng-Feng Xu
World Journal of Gastroenterology , 2011, DOI: 10.3748/wjg.v17.i46.5123
Abstract: AIM: To compare and evaluate the appropriate prognostic indicators of lymph node basic staging in gastric cancer patients who underwent radical resection. METHODS: A total of 1042 gastric cancer patients who underwent radical resection and D2 lymphadenectomy were staged using the 6th and 7th edition International Union Against Cancer (UICC) N staging methods and the metastatic lymph node ratio (MLNR) staging. Homogeneity, discriminatory ability, and gradient monotonicity of the various staging methods were compared using linear trend χ2, likelihood ratio χ2 statistics, and Akaike information criterion (AIC) calculations. The area under the curve (AUC) was calculated to compare the predictive ability of the aforementioned three staging methods. RESULTS: Optimal cut-points of the MLNR were calculated as MLNR0 (0), MLNR1 (0.01-0.30), MLNR2 (0.31-0.50), and MLNR3 (0.51-1.00). In univariate, multivariate, and stratified analyses, MLNR staging was superior to the 6th and 7th edition UICC N staging methods. MLNR staging had a higher AUC, higher linear trend and likelihood ratio χ2 scores and lower AIC values than the other two staging methods. CONCLUSION: MLNR staging predicts survival after gastric cancer more precisely than the 6th and 7th edition UICC N classifications and should be considered as an alternative to current pathological N staging.
Fabrication of CuInS2 Sensitized TiO2 Nanorod Arrays for Photovoltaic Devices
FAN Jun-Qi, ZHOU Zheng-Ji, ZHOU Wen-Hui, WU Si-Xin
无机材料学报 , 2012, DOI: 10.3724/sp.j.1077.2012.00049
Abstract: Vertically oriented single―crystalline TiO2 nanorod arrays sensitized with CuInS2 quantum dots (QDs) were synthesized directly on fluorine―doped tin oxide (FTO) substrates by two―step solvothermal method. The as―prepared nanostructure assembly was characterized by X―ray diffraction (XRD) and scanning electron microscope (SEM). The results indicated that CuInS2 QDs were uniformly covered on the surface of the single―crystalline TiO2 nanorods. Ultraviolet visible (UV―Vis) absorption spectra showed that the absorbance of the TiO/CuInS2 nanocomposite film was extended to the visible region. Under illumination of simulated AM 1.5 G (100 mW/cm2) at one sun intensity, the QD sensitized solar cells (QD―SSCs) assembled with FTO/TiO2/CuInS2 photoelectrodes exhibited an open―circuit voltage of 0.29 V and a short―circuit current density of 0.15 mA/cm2.
EMOTION EXPRESSIONS AND KNOWLEDGE OF STORY STRUCTURE: A STUDY OF MANDARIN-SPEAKING CHILDREN’S NARRATIVE DEVELOPMENT
Wen-hui Sah
Taiwan Journal of Linguistics , 2011,
Abstract: The present study investigates developmental differences in Mandarin-speaking children’s use of emotion expressions in narratives and their relatedness to the narrators’ knowledge of story structure. Our data yield age-related differences in the use of emotion expressions. More importantly, the narrators’ emotion expressions seem to respond to different hierarchical levels in the story structure. In particular, the five-year-olds’ emotion expressions were mostly triggered by local, immediate situations. Most nine-year-olds’ emotion expressions were motivated by local situations, while few of them considered both local and global story structure. The adults’ attribution of emotion, however, was triggered by both local situations and the global story plotline, which served to enhance narrative coherence. In addition, the five-year-olds’ attribution of emotion mostly focused on one character in the story, while the adults’ attribution involved several characters, which suggests that the adults possess better ability in perspective-taking. Our data suggest that the use of emotion expressions may disclose narrators’ knowledge of story structure and reflect their ability in maintaining narrative coherence. Findings are discussed in relation to the development of event schema, theory of mind and the Three-Phase Model for problem-solving.
Discussion of time and space differentiation of three-yin and three-yang in Shanghan Lun
MA Wen-Hui
Zhong Xi Yi Jie He Xue Bao , 2005,
Abstract: The concept of "three-yin and three-yang" in Shanghan Lun (Treatise on Cold Pathogenic Diseases), a classic written by Zhang Zhongjing in Han Dynasty, has been always the focus of dispute in successive dynasties. The essence of "three-yin and three-yang" has not been fully revealed up till now. Through studying the six divisions of day and night, the six diseases, the combination of syndromes, the complicated diseases, the complete recovery time and the space division of "three-yin and three-yang", the authors draw a conclusion that the "three-yin and three-yang" in Shanghan Lun is a concept of time-sequence, which is associated with the location of disease in space. So it is suggested that the "six diseases" in Shanghan Lun is a categorization for exogenous febrile diseases, and this categorization reveals a sort of inner relationship between the emergence, development, transformation of the febrile diseases and the time.
Stable nontrivial Z2 topology in ultrathin Bi (111) films: a first-principles study
Zheng Liu,Chao-Xing Liu,Yong-Shi Wu,Wen-Hui Duan,Feng Liu,Jian Wu
Physics , 2011, DOI: 10.1103/PhysRevLett.107.136805
Abstract: Recently, there have been intense efforts in searching for new topological insulator (TI) materials. Based on first-principles calculations, we find that all the ultrathin Bi (111) films are characterized by a nontrivial Z2 number independent of the film thickness, without the odd-even oscillation of topological triviality as commonly perceived. The stable nontrivial Z2 topology is retained by the concurrent band gap inversions at multiple time-reversal-invariant k-points and associated with the intermediate inter-bilayer coupling of the multi-bilayer Bi film. Our calculations further indicate that the presence of metallic surface states in thick Bi(111) films can be effectively removed by surface adsorption.
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