TikTok is the international twin of China’s mobile short video app, Douyin, and one of the fastest growing short video platforms in the world. Owned by Chinese tech giant, ByteDance, TikTok and Douyin share many similarities in terms of appearance, functionality, and platform affordances; however, they exist in radically different markets and are governed by radically different forces. Unlike other popular mobile media platforms in China and internationally, TikTok and Douyin are neither part of the big three tech giants in China nor the big five in the US. This provides an interesting case study to investigate how an emerging internet company adapts its products to better fit divergent expectations, cultures, and policy frameworks in China and abroad. Using the app walkthrough method informed by platformization of culture production theory, this study highlights the similarities and distinctions between these two platforms. We argue the co-evolution of Douyin and TikTok is a new paradigm of global platform expansion that differs from strategies of regionalization adopted by previous major social media platforms. We contribute to platformization theory by developing the concept of parallel platformization to explain ByteDance’s strategies for surviving in two opposing platform ecosystems in China and abroad.

The microvideo platform TikTok has emerged as a popular hub for self-expression and social activism, particularly for youth, but use of the platform’s affective affordances to spread awareness of important issues has not been adequately studied. Through an exploratory multimodal discourse analysis of a sample of popular climate change-hashtagged TikTok videos, we examine how affordances of visibility, editability, and association facilitate the formation of affective publics on TikTok. We describe how TikTok’s features allow creators to construct and propagate multi-layered, affect-laden messages with varying degrees of earnestness, humor, and ambiguity. Finally, we identify recurring affective themes in popular climate change messages by studying not just in-frame content but also the discursive, intertextual, and memetic linkages that propagate affective publics. Collectively, these audiovisual expressions of personal engagement and awareness demonstrate how media affordances can abet, amplify, and confuse discussions of global issues online. These affordances facilitate a unique kind of activism by helping non-expert users intervene in a discussion that generally takes place among scientists and journalists: the question of how serious a problem climate change is and what to do about it.

Migrant female sex workers (FSWs) are one of the most at-risk populations for HIV in China. This study demonstrates how multiple risk factors are situated and vary by types of sex work environments in a sample of 348 migrant FSWs in Beijing. Participants reported high rates of clients' refusal to use condoms (76%), unsafe sex with both clients (32%), non-paid regular partners (e.g., boyfriend or husband) (76%), and a STI symptom (79%) last year. Only 22% of FSWs had been tested for HIV. Risk factors were compared by three types of sex work environments: (1) entertainment establishments, (2) personal services sectors, and (3) street-based venues, including roadside brothels. Street-based FSWs, compared to the other FSWs, were more likely to be older, married with children, migrate from rural areas, and be arrested by police, and less likely to be educated, have contact with prevention services, be knowledgeable about HIV, and be tested for HIV. The FSWs in entertainment establishments were more likely than streetbased FSWs to have reported being physically, verbally, and/or sexually abused by clients. Multiple discriminant analysis distinguished a profile of two different groups of risk factors: (1) police arrest, lack of protection from violence, access to prevention and health care, and HIV knowledge, and (2) verbal and physical abuse and clients' refusal of condom use. In the massive internal migration in China, disadvantages in economic sectors drive women to become involved in sex work. HIV prevention strategies must target socio-structural factors embedded in sex work environments. Keywordsmigrants; female sex workers; sex work environment; China; HIV preventionChina's open door policy in 1978 toward market-driven economic development led to massive migration from rural to urban areas. In Beijing, an estimated 5.4 million of the 17.4 million city residents in 2007 were migrants (Juan, 2007). Large-scale urbanization also resulted in the reemergence of the sex work industry and a resurgence of sexually transmitted infections (STIs) (Chen et al., 2007;Gil et al, 1996). There are an estimated 10 million FSWs in China (Yang et al., 2005c) As sexual transmission is currently the primary driver of the HIV epidemic in China, the potential spread of HIV via the expanded sexual networks among migrant "floating" populations along with urbanization is of particular concern (Anderson et al., 2003;Yang et al., 2005c). In Li and colleagues' study (2004) of migrants in Beijing, mobility, assessed by the total years of migration and the number of migratory cities, was highly correlated with sexual risk. There have been consistent findings that female migrants reported higher STI rates than male migrants in China (Detels et al., 2003;Liu et al., 2005;Mao & Sun, 1999;Sun, 1997). One of the reasons for this disparity may be women's relative disadvantage to men in socio-economic status, facilitating women's entry into the sex work industry and exposure to other health risks (Huang, 2001;Ren, 1999;Yang & Xia, 2006). Whi...

No abstract

In Chinese political discourse, "positive energy" (zheng nengliang) is a popular expression that has embodied mainstream political ideology in China since 2012. This term has also become prominent on Douyin, a prominent Chinese short-video platform. By June 2018, over 500 Chinese governmental accounts on Douyin had promoted positive energy in videos, and the content was viewed over 1.6 billion times. Douyin even created a separate trending section, Positive Energy, for videos that promoted the dominant state ideology. This study argues that the Positive Energy feature on Douyin is significant. The Chinese government has accused and even permanently shut down several digital platforms for spreading "vulgarity" as the antithesis of positive energy. Using the app walkthrough method and a content analysis of over 800 videos collected from the Positive Energy section of Douyin, this study explores how Douyin promotes the Chinese state's political agenda by promoting a new form of playful patriotism online.