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Previous studies have focused more on the facilitating effect of nature exposure on positive behavioural consequences. However, less attention has been paid to whether nature exposure can inhibit internalized problem behaviours, such as Internet addiction. Within the framework of the stimuli‐organism‐response theory, the present study examined the relationship between nature exposure and Internet addiction and investigated the mediating roles of anthropomorphism of nature and awe. In China, we recruited 1469 adolescents (mean age = 13.90 years old, SD = 0.59, 53.2% girls). Mediation analyses indicated that awe partially mediated the relationship between nature exposure and adolescents' Internet addiction. The anthropomorphism of nature and awe served as sequential mediating roles in the relationship between nature exposure and adolescents' Internet addiction. This study provides a nature‐based perspective on the prevention and intervention of adolescents' Internet addiction. [ABSTRACT FROM AUTHOR]

Objective To explore the characteristics of positive and negative affect in young male military personnel and the effect of trait anxiety (TA), rumination and educational level on positive and negative affect. Methods We surveyed the military personnel serving in an army unit of PLA using cluster sampling in October 19 to 20, 2018. We arranged 4 survey sessions, in which a total of 4 004 participants aged 18~38 years were asked to complete Trait Anxiety Subscale, Ruminative Responses Scale (RSS), Positive and Negative Affect Schedule (PANAS) and a demographic information questionnaire with on-site guidance by professional psychologists. Results ① The scores of positive affect (PA) and negative affect (NA) were 2.51~3.97 and 1.86~2.70 among the surveyed participants, respectively. ②NA was positively correlated with TA and RSS (r=0.322-0.365, P < 0.01), while PA was negatively correlated with TA (r=-0.463, P < 0.01). ③The participants with a bachelor degree or above had significantly higher scores for PA and NA than those with a junior college or a senior high school education (P < 0.001 or 0.05). ④The mediating effect of rumination on the relationship between TA and PA was presented as a suppressive effect, and the absolute ratio of its mediating effect to direct effect was |0.024/-0.383|. Rumination could partially mediate the relationship between TA and NA, and its mediating effect accounted for 13.86% of the total effect. ⑤With PA as the criterion variable, the value of Δχ2(Δdf) was differed significantly between the structured weight model and the structural residual model (P < 0.001). Pairwise parameter comparisons showed significant differences in rumination-PA path coefficients between the participants with different education levels (-3.666 vs -2.323, P < 0.05). Conclusion Young male military personnel presents with a high positive affect and a low negative affect with a good affect balance. Rumination has a suppressive effect on the relationship between trait anxiety and PA, and rumination-PA path is moderated by the education level; rumination is also a partial mediator of the relationship between TA and NA.

This study, grounded in developmental systems theory, investigated the roles of family functioning, peer relationships, and adolescents' dark personality traits related to behavioral adjustment so that we would delve deeper into these relations. Cross-sectional data from 1,878 Chinese adolescents (759 females; M age = 14.97 years) was used. Results revealed that psychopathy was the strongest predictor of adolescents' behavioral adjustment. In addition, mediation analysis highlighted the indirect roles of psychopathy and peer relationship between family functioning and behavioral adjustment. These findings clarify the mechanisms of driving adolescents' behavioral adjustment and highlight the importance of future youth programs focusing on the family as a unit and preventing the development of psychopathy simultaneously. [ABSTRACT FROM AUTHOR]

Emotional labour strategies have a significant impact on job burnout. However, current research results are controversial and unclear. A meta‐analysis was conducted to explore the relationship between emotional labour strategies (surface acting and deep acting) and job burnout. A total of 84 empirical studies that included 28,242 participants were selected. The meta‐analysis of the relationships between job burnout and surface acting and deep acting included 84 and 75 independent samples respectively. The results show that surface acting had a positive association (r = 0.25) with job burnout, whereas deep acting (r = −0.27) had a negative association with job burnout. Occupational types and measures of emotional labour strategies moderated the relationship between emotional labour strategies and job burnout, but this relationship was not moderated by measures of job burnout. [ABSTRACT FROM AUTHOR]

We present a practical large universe hierarchical attribute-based encryption (LU-HABE) scheme, which supports monotone access structures. In our system, key generation centers (KGCs), any one in which is labeled by a unique identity, are organized as a hierarchical structure. Thus, all secret keys issued by the KGC contain 2 parts: the identity-related one and the attribute-related one. Once the data owner wants to encrypt his/her data, he/she needs to specify certain numbers of pairs according to his/her demand. The pair consists of an identity of a KGC and a policy of attributes managed by the corresponding KGC, eg, I D i a n d ( M i, ρ i). If and only if an identity associated with user's secret key is equal to or is an ancestor of one of the identities appearing in ciphertext, and simultaneously a set of attributes belonging to the user satisfies the policy, the user can decrypt it successfully. Our scheme is proved to be selectively secure in the standard model under the modified ' q-type' assumption similar to the ones used in former works and is extended to support online/offline encryption. To show the efficiency of our construction, we implement our original scheme and the extended one in Charm. Analyses show that both of them are very practical. [ABSTRACT FROM AUTHOR]

With high activity h-BN powders as raw materials and without the using of any sintering additives, AlN-BN composite ceramics with 0-30 vol% were prepared by hot-pressing sintering in N at 1850 °C. Effect of h-BN content on the microstructure and properties of the composite ceramics was investigated. The results show that fully dense composite ceramics with h-BN content up to 20 vol% can be obtained and all composites show a fine-grain-microstructure with clean and clear boundaries. No 'card room structure' of h-BN was formed in the samples. With the increasing h-BN content, the composites show a decreased bending strength, fracture toughness, Vickers hardness, thermal conductivity and dielectric constant. The application of high activity raw materials produces a significant grain-refinement strengthening effect and makes the composites exhibit a much higher strength and toughness compared with the results reported by other researchers. Due to the absence of sintering additive, the composite ceramics also show a quite low dielectric loss at both low and high frequency. An optimal comprehensive properties are obtained for the AlN-20 vol% BN composite: bending strength of 410 ± 21 MPa, fracture toughness of 4.21 ± 0.19 MPa·m, Vickers hardness of 7.7 ± 0.2 GPa, thermal conductivity of 46.6 W·m·K, dielectric constant of 7.4 (1 MHz) and 7.48 (18 GHz), dielectric loss of 6.7 × 10 (1 MHz) and 6.18 × 10 (18 GHz). [ABSTRACT FROM AUTHOR]