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107 articles for “Mo Z. Wen”
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Research ArticleOpen accessIn the author namesOmega Network Hash ConstructionChai Wen Chuah, Azman SamsudinProblem statement: Cryptographic hash functions are important cryptographic primitives. They are commonly used for data integrity checking and data authentication. Most of the cryptographic hash functions are based on the Merkle-Damgård construction. The basic Merkle-Damgård construction runs over the input sequentially, which can lead to problems when the input size is large since the computation time increases linearly. Approach: Therefore, … …Journal of Computer Science, Vol. 5, Issue 12 · 31 Dec 2009 · 7,123 accessesView PDFCite
Research ArticleOpen accessIn the author namesManaging Air in Olympic CitiesQing Wen Tian, Peter BrimblecombeThe 21st century Olympic Agenda aims to align itself with the concept of sustainable development and has driven improved environmental quality in host cities, such as the Green Games in Sydney 2000 and the planned Beijing 2008 Games and in London 2012 as the Low Carbon Games. Air quality has long been a concern of Olympic mega-cities, although the air … …American Journal of Environmental Sciences, Vol. 4, Issue 5 · 31 Oct 2008 · 7,689 accessesView PDFCite
Research ArticleOpen accessIn the author namesA Sectoral Efficiency Analysis of Malaysian Stock Exchange Under Structural BreakChin Wen CheongWe investigated the weak-form market efficiency of nine daily sectoral indices of Malaysian stock market between 1996 and 2006. The structural break unit root tests evidenced most of the price indices characterized by mean-reverting process that violated the random walk process. These empirical results were in sharp contrast with the traditional unit-root test which ignored the economic crisis and currency … …American Journal of Applied Sciences, Vol. 5, Issue 10 · 31 Oct 2008 · 7,286 accessesView PDFCite
Research ArticleOpen accessIn the author namesIn Vitro Metabolism Studies of Polybrominated Diphenyl Ethers Using Rat and Human Liver MicrosomesShun Wen Cheng, Kathleen Randall, Anne T. KotchevarA number of studies have recently reported the bioaccumulation of the commonly used fire retardants, Polybrominated Diphenyl Ethers (PBDEs), in humans and wildlife. Exposure of animals to PBDEs has been shown to result in developmental neurological, reproductive abnormalities and the disruption of endocrine function. Thyroid hormone equilibria was also shown to be altered by PBDE exposure. There is evidence that … …American Journal of Biochemistry and Biotechnology, Vol. 4, Issue 3 · 30 Sep 2008 · 6,998 accessesView PDFCite
Research ArticleOpen accessIn the author namesDesign and Development of Decision Making System Using Fuzzy Analytic Hierarchy ProcessChin Wen Cheong, Lee Hua Jie, Mak Chee Meng, Amy Lim Hui LanThis article aims to develop a fuzzy Multicriteria Decision Making (MCDM) tool that equips with Analytic Hierarchy Process (AHP) framework to help users in semi-structured and unstructured decision making tasks. The tool provides portability and adaptability features by deploying the software on web platform. In addition, this system provides an integrated domain reference channel via a database connection to assist … …American Journal of Applied Sciences, Vol. 5, Issue 7 · 31 Jul 2008 · 7,197 accessesView PDFCite
Research ArticleOpen accessIn the author namesVolatility in Malaysian Stock Market: An Empirical Study Using Fractionally Integrated ApproachChin Wen CheongThis study explores the fractionally integrated (FI) time series analysis in Malaysian stock market. Four proxies of latent volatility, namely the absolute return, squared return and range-based (Parkinson and Garman and Klass) volatilities are selected for the empirical studies. In addition, the well-known FI autoregressive conditional variance (ARCH) type model is also taken into account for comparison purposes. Our empirical … …American Journal of Applied Sciences, Vol. 5, Issue 6 · 30 Jun 2008 · 6,706 accessesView PDFCite
Research ArticleOpen accessIn the author namesRandom Walk Models Classifications: An Empirical Study for Malaysian Stock IndicesChin Wen CheongThis article studied the Random Walk models introduced by Campbell et al.[2] for Malaysian stock market. The analysis is implemented under the possible drastic economics structural change using an iterative structural change test. After the break-date identification, the random walk hypothesis is tested by multiple variance ratios test in two separate periods. We further examined the serial correlations of return’s … …American Journal of Applied Sciences, Vol. 5, Issue 4 · 30 Apr 2008 · 6,850 accessesView PDFCite
Research ArticleOpen accessIn the author namesC-Terminal Region of Dengue Virus Nonstructural Protein 1 Is Involved in Endothelial Cell Cross-Reactivity via Molecular MimicryShu-Wen Wan, Chiou-Feng Lin, Mei-Chun Chen et al.Infection with dengue virus (DV) causes diseases ranging from self-limited dengue fever to life-threatening dengue hemorrhagic fever and dengue shock syndrome. Vascular leakage, thrombocytopenia and bleeding are the clinical manifestations associated with dengue hemorrhage. We previously showed that anti-DV nonstructural protein 1 (NS1) antibodies (Abs) cross-reacted with endothelial cells. The potential target proteins on endothelial cell surface recognized by anti-DV … …American Journal of Infectious Diseases, Vol. 4, Issue 1 · 31 Mar 2008 · 7,560 accessesView PDFCite
Research ArticleOpen accessIn the author namesDengue Virus Infection Induced NF-κB-dependent Macrophage Migration Inhibitory Factor ProductionLien-Cheng Chen, Huey-Wen Shyu, Huan-Yao Lei et al.Dengue virus (DV) infection can cause mild dengue fever or severe dengue hemorrhage fever and dengue shock syndrome. Macrophage migration inhibitory factor (MIF) is a cytokine that plays an important role in the modulation of inflammatory and immune responses and serum levels of MIF are correlated with disease severity in dengue patients. However, the mechanism that induces MIF production during … …American Journal of Infectious Diseases, Vol. 4, Issue 1 · 31 Mar 2008 · 7,290 accessesView PDFCite
Research ArticleOpen accessIn the author namesThe Gaussianity Evaluations of Malaysian Stock Return VolatilityChin Wen CheongWe study the distribution of standardized returns by using various frequencies data. The empirical standardized returns are obtained by using the unobserved and observable daily volatility. Our empirical results evidence the realized-standardized returns follow nearest to a Gaussian distribution. On the other hand, the standardized returns using daily closing and range-based data are able to reduce but not fully eliminate … …American Journal of Applied Sciences, Vol. 5, Issue 2 · 28 Feb 2008 · 7,078 accessesView PDFCite