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BACKGROUND Given the higher prevalence of risky sexual behaviors and substance use, adolescents and youths are at risk for HIV. Despite its importance, however, to the best of our knowledge, there are only a few researches on risky behaviors in Chinese adolescents/youths. The present study aimed to describe the prevalence of sexual and substance use(More)
BACKGROUND High prevalence of risky sexual behaviors and lack of information, skills and preventive support mean that, adolescents face high risks of HIV/AIDS. This study applied the information-motivation-behavioral skills (IMB) model to examine the predictors of consistent condom use among senior high school students from three coastal cities in China and(More)
BACKGROUND To determine potential social, psychological, and environmental-structural factors that may result in motivating female sex workers (FSWs), who are rural-to-urban migrants, and their paying partners in Shanghai, China to promote consistent condom use (CCU). METHODS A cross-sectional study was conducted in five districts of Shanghai, including(More)
BACKGROUND China is currently facing a rapid and widespread increase in human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS). The activities of female sex workers (FSWs) have contributed to the mounting epidemic of HIV/AIDS and other sexually transmitted diseases (STDs). Therefore, this study aimed to assess the HIV/AIDS-related(More)
HIV/AIDS epidemic is crucial in China; however, few studies were performed on youths. This study was performed to examine the effectiveness of peer-led HIV prevention intervention on HIV-related knowledge, attitudes and behaviour intention in senior high-school students in San-ming, a medium-sized city in Fujian province. Three thousand and sixty-eight(More)
Several approaches have proven be valuable in estimating dental age in children. The Demirjian method, based on crown and root calcification, is the most frequently used tool. The Willems method is a modification of the Demirjian method. There are few studies regarding to compare the application of the two methods in China. This study aims to apply the two(More)
OBJECTIVE To introduce algorithms for effective segmentation of teeth MRI-UTE image. METHODS To construct second-segmentation algorithm process based on layer-dependent multi-constrained method. Firstly, a level set method was used to segment the initial boundary from the region determined by user in the reference slice. Secondly, both crown and root of(More)
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