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Shyness has been shown to be linked to aggression. However, whether this relationship occurs in cyberspace and the mechanisms that might affect it are largely unexplored. Based on the social fitness model, the current study examined the relationship between shyness and cyber aggression, as well as the mediating roles of passive use and relative deprivation. Moreover, according to the integration of the social information processing model and moral domain theory, moral sensitivity serves as a moderator in the direct and indirect links between shyness and cyber aggression. A total of 700 Chinese college students (M age = 18.68, 53.57% women) participated in the current study and completed multiple questionnaires, namely, the Shyness Scale, Cyber-Aggression Scale, Passive Use of Social Network Site Scale, Relative Deprivation Scale, and Ethical Sensitivity Scale. The results showed that shyness was positively associated with cyber aggression through the multiple mediating effects of passive use and relative deprivation. Additionally, moderated mediation analysis indicated that moral sensitivity moderated the direct and indirect relationship between shyness and cyber aggression. A high level of moral sensitivity weakened the association of shyness with cyber aggression and the association of relative deprivation with cyber aggression, supporting the moderated mediation model. This study implicates the underlying mechanisms of the relationship between shyness and cyber aggression and preventative interventions to reduce the risk of cyber aggression. [ABSTRACT FROM AUTHOR]

In this paper, we investigate the generalized Radhakrishnan–Kundu–Lakshmanan equation with polynomial law using the method of dynamical systems. By using traveling-wave transformation, the model can be converted into a singular integrable traveling-wave system. Then, we discuss the dynamical behavior of the associated regular system and we obtain bifurcations of the phase portraits of the traveling-wave system under different parameter conditions. Finally, under different parameter conditions, we obtain the exact periodic solutions, and the peakon, homoclinic and heteroclinic solutions. [ABSTRACT FROM AUTHOR]

Negative body image is prevalent among women and may lead to physical and mental health problems. Social media—including China's most popular platform, WeChat Moments—aggregates multiple aspects of appearance‐related pressure and therefore is an important risk factor for negative body image. The current study examines the relationship between WeChat Moments usage and body image among female college students and the mediating mechanism of body surveillance. A sample of 151 female college students completed a 7‐day ecological momentary assessment (EMA), responded to three surveys per day, and provided a total of 2949 EMA responses. We used multilevel structural equation modeling (MSEM) to examine the hypothesized models at both the between‐ and within‐individual levels. The results showed that both overall WeChat Moments usage and appearance‐related exposure on WeChat Moments were inversely and indirectly related to body image through the mediating role of body surveillance at the between‐individual level. However, both overall WeChat Moments usage and appearance‐related exposure on WeChat Moments were positively and indirectly related to body image through body surveillance at the within‐individual level. Our findings indicate that WeChat Moments usage is associated with college women's body image differently at the between‐ and within‐individual level, and body surveillance serves as a crucial underlying mechanism. [ABSTRACT FROM AUTHOR]

Background: Influenza vaccination has been suggested to protect against death and recurrent events among patients with cardiovascular disease or chronic obstructive respiratory disease, but there is limited evidence in older adults, who have higher risks of influenza-associated hospitalization and mortality.Methods: Patients aged ≥60 years hospitalized for cardiovascular or respiratory diseases from the Beijing Urban Employee Basic Medical Insurance database during 3 influenza seasons (2013-2014 through 2015-2016) were pooled to estimate the effects of influenza vaccination on hospitalization outcomes. Vaccination status was ascertained through cross-referencing the Beijing Elderly Influenza Vaccination database. The summer months (June-August) were used as a reference period to adjust for unmeasured confounders during influenza seasons.Results: After adjustment for both measured and unmeasured confounders, influenza vaccination was associated with lower risks of in-hospital deaths among patients hospitalized for cardiovascular (odds ratio [95% confidence interval], 0.85 [.68-1.06]) or respiratory diseases (0.66 [.54-.82]). Influenza vaccination was associated with a lower risk of readmission among patients with cardiovascular (odds ratio [95% confidence interval], 0.81 [.69-.95]) but not respiratory diseases (1.12 [.92-1.35]). Influenza vaccination was also associated with lower direct medical costs, but not with length of stay.Conclusions: Influenza vaccination protected against hospitalization outcomes among older adults with cardiovascular or respiratory diseases. [ABSTRACT FROM AUTHOR]