Cynthia Sau Ting Wu

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A single fiber pullout test was used in this study to measure the bond properties of polyvinyl alcohol fibers that are available at various diameters in a mortar matrix. Despite short fiber embedment lengths, the small diameter fibers ruptured during the pullout tests. However, it is shown that even if full fiber pullout is not achieved, it is still(More)
JEL classification: C32 E32 E43 Keywords: Affine term structure models Unspanned stochastic volatility Estimation a b s t r a c t We develop new procedures for maximum likelihood estimation of affine term structure models with spanned or unspanned stochastic volatility. Our approach uses linear regression to reduce the dimension of the numerical(More)
T he protein C (PC) pathway plays a major role in inhibiting blood coagulation. PC is activated on the surface of vascular endothelial cells by the thrombin–thrombomodulin (TM) complex. The endothelial PC receptor (EPCR), a receptor which binds circulating PC and presents it to the throm-bin–TM complex, enhances PC activation by ≈8-fold in vitro 1 and by(More)
Screen viewing is considered to have adverse impacts on the sleep of adolescents. Although there has been a considerable amount of research on the association between screen viewing and sleep, most studies have focused on specific types of screen viewing devices such as televisions and computers. The present study investigated the duration with which(More)
BACKGROUND Young children are using digital technology (DT) devices anytime and anywhere, especially with the invention of smart phones and the replacement of desktop computers with digital tablets. Although research has shown that parents play an important role in fostering and supporting preschoolers' developing maturity and decisions about DT use, and in(More)
Vaccination against AH1N1pdm09 infection (human swine infection, HSI) is an effective measure of preventing pandemic infection, especially for high-risk groups like children between the ages of 6 months and 6 years. This study used a cross-sectional correlation design and aimed to identify predicting factors of parental acceptance of the HSI vaccine (HSIV)(More)
Early onset and increasing proliferation of illicit adolescent drug-use poses a global health concern. This study aimed to examine the correlation between Protective Motivation Theory (PMT) measures and the intention to use drugs among adolescents. An exploratory quantitative correlation design and convenience sampling were adopted. A total of 318 students(More)
Existing methods for estimating nonlinear dynamic models are either too computa-tionally complex to be of practical use, or rely on local approximations which often fail to adequately capture the nonlinear features of interest. I develop a new method, the discretization filter, for approximating the likelihood of nonlinear, non-Gaussian state space models.(More)
BACKGROUND Internet addiction (IA) among adolescents has become a global health problem, and public awareness of it is increasing. Many IA risk factors relate to parents and the family environment. This study examined the relationship between IA and parenting approaches and family functionality. METHODS A cross-sectional study was conducted with 2021(More)
BACKGROUND AND PURPOSE We studied whether anticoagulant use and outcomes differed between rural versus urban Canadian non-valvular atrial fibrillation (NVAF) patients prior to the introduction of direct oral anticoagulant drugs. METHODS Retrospective cohort study of 25,284 adult Albertans with NVAF between April 1, 1999 and December 31, 2008. RESULTS(More)
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