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At the current university stage, university students are subjected to a variety of pressures such as role change adaptation pressure, study and life pressure, emotional pressure, economic pressure, employment pressure, and interpersonal pressure, which seriously affect their physical and mental health. Students with poor psychological tolerance may develop psychological disorders and, in serious cases, may even lead to mental illness. The results of the study indicated that 17%–20.23% of university students have psychological disorder problems. Excessive and long-lasting stress can cause psychological, depression and anxiety, physical fatigue, and discomfort, which can lead to various diseases and even death. It is, therefore, of great importance to study the state of mental health and stress among university students as well as to develop countermeasures to improve their mental health. This study focuses on the impact of martial arts sports on the mental health of university students. As a type of sport, martial arts sports are particularly special in which they can intertwine the nurturing spirit of traditional culture with the nurturing spirit of sports. The development of martial arts sports in colleges and universities can not only enhance the physical quality of college students but also promote the development of their physical and mental health. Therefore, this article takes Taijiquan as an example to explore the study of the impact of martial arts sports health on college students’ mental health.

In recent years, the community video which is gradually known is a true portrayal of the social reality that the image producer cares for. Short video production technology has a low threshold, and ordinary people can share content instantly through portable devices, which provides an opportunity for cloud collection of community videos. At the same time, the short video APP not only serves as a "mirror" for recording the world, but also empowers individuals to carry out a series of public welfare activities for rural poverty alleviation. This paper attempts to pay attention to this new video practice form, analyzes the collection of cloud community videos of short video APP, and explores the similarities and differences between community video recorded by short video and traditional community video, the current development trend of community video of short video APP and possible visions.

With the continuous development and gradual progress of Internet of Things (IoT) in human society, people are becoming increasingly diverse in terms of user preferences and things choices. In this situation, several new cultures or social phenomena have been emerging including the so-called Crossdressing culture. As a special group of humans, cross-dressers are often very sensitive to their nonmainstream identities. Therefore, they are often confronted with more difficulties when using some modern information techniques such as Content-of-Interest (COI) search. Motivated by this fact, we introduce some advanced information retrieval and privacy protection techniques into the cross-dressing domain and further propose a privacy-aware COI search and recommendation solution for cross-dressers, named PCSR. First, PCSR uses fastText tool to transform the cross-dressers' input keywords and the candidate webpages into corresponding vectors with less private content associated with cross-dressers. Afterwards, we use vector similarity calculation techniques to make privacy-preserving COI search and recommendation. At last, we validate the effectiveness of PCSR through a set of experiments. We believe that our proposed PCSR solution can benefit the cross-dressers significantly when performing COI search and recommendation in IoT while protecting sensitive information of cross-dressers.

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