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BACKGROUND Men who have sex with men (MSM) are much more likely to be infected with HIV than the general population. China has a sizable population of MSM, including gay, bisexual men, money boys and some rural workers. So reducing HIV infection in this population is an important component of the national HIV/AIDS prevention and control program. METHODS(More)
Social media systems with Q&A functionalities have accumulated large archives of questions and answers. Two representative types are online forums and community-based Q&A services. To enable users to explore the large number of questions and answers in social media systems effectively, it is essential to suggest interesting items to an active user. In this(More)
A large portion of previous research on knowledge sharing in virtual community focuses on organization-sponsored professional virtual communities (PVC) while nowadays numerous non-work-related virtual communities are gaining popularity. This study investigates the phenomenon of knowledge sharing in one popular type of non-work-related virtual community,(More)
OBJECTIVE To project the HIV/AIDS epidemics among men who have sex with men (MSM) under different combinations of HIV testing and linkage to care (TLC) interventions including antiretroviral therapy (ART) in Beijing, China. DESIGN Mathematical modeling. METHODS Using a mathematical model to fit prevalence estimates from 2000-2010, we projected trends in(More)
From February to May, 2013, 132 human avian influenza H7N9 cases were identified in China resulting in 37 deaths. We developed a novel, simple and effective compartmental modeling framework for transmissions among (wild and domestic) birds as well as from birds to human, to infer important epidemiological quantifiers, such as basic reproduction number for(More)
With the increasing demand of electricity, the development of the urban power grid has drawn a lot of attention in China. In order to focus on the analysis of an urban power grid, the remaining part of the large-scale power grid used is to be reduced. The accuracy of the equivalence is key to urban power grid research. In this paper, a multistep dynamic(More)
BACKGROUND To project the impact of partner reduction on preventing new HIV infections among men who have sex with men (MSM) under varying conditions of enhanced HIV testing and treatment (T&T) and condom use in Beijing, China. METHODS AND FINDINGS A complex network model was fitted to predict the number of new HIV infections averted from 2014 to 2023(More)
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