Research has revealed that mobile phone addiction was a risk factor for poor sleep quality, however, little is known about the underlying mechanisms that may mediate or moderate this association. ...This study examined the mediating role of rumination and moderating role of mindfulness in the association between mobile phone addiction and sleep quality. A sample of 1196 Chinese adolescents was recruited to complete measures of mobile phone addiction, sleep quality, rumination and mindfulness. Results showed that rumination partially mediated the relationship between mobile phone addiction and sleep quality. Besides, both the effect of mobile phone addiction on sleep quality and the mediating effect of rumination were moderated by mindfulness, and both of the two effects were stronger for individuals with lower mindfulness. The present study can advance our understanding of how and when mobile phone addiction leads to poor sleep quality. Limitations and implications of this study are discussed.
•Mobile phone addiction was significantly correlated with sleep quality in adolescents.•Rumination partially mediated the relation between mobile phone addiction and sleep quality.•Mindfulness moderated the relation between mobile phone addiction and sleep quality.•Mindfulness moderated the mediating role of rumination in the relation between mobile phone addiction and sleep quality.
Two hetero‐bimetallic Zn(II)2M(II) (M = Ca and Sr) complexes Zn2Ca(L)(OAc)2 (1) and Zn2Sr(L)(OAc)2 (2) with a novel asymmetrical bis(salamo)‐type tetraoxime ligand (H5L) were designed and ...synthesized, and characterized by elemental analyses, FT‐IR spectra, UV–vis absorption spectra, Density Functional Theory (DFT) calculation, Hirshfeld surface analyses and X‐ray single crystal diffractions. Compared with the symmetric bis(salamo)‐type ligands, the ligand H5L and its Zn(II)2M(II) (M = Ca and Sr) asymmetrical bis(salamo)‐type complexes synthesized for the first time in this paper have more novel structures and better properties. The results of ultraviolet titration show that the coordination ratio of ligand, alkaline earth metal and transition metal is 1:1:2. Complexes 1 and 2 have good luminescent properties and obvious antimicrobial activities.
Two hetero‐trinuclear Zn(II)2M(II) (M = Ca and Sr) bis(salamo)‐type complexes Zn2Ca(L)(OAc)2 (1) and Zn2Sr(L)(OAc)2 (2) were designed and synthesized, and characterized structurally. The coordination ratio and structure of the complexes were further determined by ultraviolet titration experiments. The results show that the coordination ratio of transition metal, alkaline earth metal and ligand is 2:1:1. The complexes have good properties, such as good luminescent properties and obvious antimicrobial activities.
Stretchable electrochemical sensors are conceivably a powerful technique that provides important chemical information to unravel elastic and curvilinear living body. However, no breakthrough was made ...in stretchable electrochemical device for biological detection. Herein, we synthesized Au nanotubes (NTs) with large aspect ratio to construct an effective stretchable electrochemical sensor. Interlacing network of Au NTs endows the sensor with desirable stability against mechanical deformation, and Au nanostructure provides excellent electrochemical performance and biocompatibility. This allows for the first time, real‐time electrochemical monitoring of mechanically sensitive cells on the sensor both in their stretching‐free and stretching states as well as sensing of the inner lining of blood vessels. The results demonstrate the great potential of this sensor in electrochemical detection of living body, opening a new window for stretchable electrochemical sensor in biological exploration.
Biomedical sensor: A highly controllable strategy has been developed for synthesizing Au nanotubes with a large aspect ratio. The nanotubes were used to construct an effective stretchable electrochemical sensor and to realize real‐time monitoring of mechanically sensitive cells and tissues.
Cyberbullying victimization has been identified as a significant vulnerability factor in the development of adolescents' depression and anxiety. However, little is known about the underlying ...processes that may mediate or moderate these relationships. The present study examined hopelessness as a mediator and self-compassion as a moderator in the relations between cyberbullying victimization and symptoms of depression and anxiety. The sample consisted of 489 Chinese early adolescents aged from 11 to 15 years (M = 12.67, SD = 0.75; 43.6% girls) who completed measures of cyberbullying victimization, hopelessness, self-compassion, depression, and anxiety. Bias-corrected bootstrap method was employed to test the proposed moderated mediation models. Results indicated that after controlling for participants’ gender and age, hopelessness partially mediated the relationships between cyberbullying victimization and depression as well as anxiety. The direct effects of cyberbullying victimization on depression and anxiety, and the mediation effects of hopelessness were moderated by self-compassion. Specifically, these effects were much stronger for adolescents with lower self-compassion. The present study can extend our knowledge about how, when, and when of how cyberbullying victimization is related to depression and anxiety. Limitations and practical implications of this study are further discussed.
•Cyberbullying victimization (CV) was positively related to depression/anxiety.•Hopelessness mediated the relations between CV and depression/anxiety.•Self-compassion moderated the direct relations between CV and depression/anxiety.•Self-compassion moderated the mediating effects of hopelessness.
Studies have revealed that bullying victimization was a risk factor for symptoms of depression, however, less is known about the underlying processes that may mediate or moderate this relationship. ...This study examined the mediating effect of resilience and moderating effect of mindfulness in the relation between bullying victimization and symptoms of depression. 448 Chinese children in grade 3 to grade 6 were recruited to complete the revised Bully/Victim Questionnaire, the Chinese version of Center for Epidemiologic Studies Depression Scale for Children, the Child and Youth Resilience Measure, as well as the Child and Adolescent Mindfulness Measure. Results showed that resilience partially mediated the relation between bullying victimization and depressive symptoms. Besides, both the effect of bullying victimization on depressive symptoms and the mediating effect of resilience were moderated by mindfulness, and both of the two effects were stronger for children with low mindfulness. The present study can contribute to a better understanding of how and when bullying victimization increases the risk of depression. It suggests that early intervention concerning diminishing negative effects of bullying victimization may start with increasing individual resilience and mindfulness.
•Bullying victimization was significantly correlated with children depression.•Resilience partially mediated the effect of bullying victimization on depression.•Mindfulness moderated the effect of bullying victimization on depression.•Mindfulness moderated the mediating effect of resilience in the relation between bullying victimization and depression.
•Traditional and cyber bullying victimization did not predict psychosocial problems.•Adolescents with psychosocial problems were more likely to be bullied.•Psychosocial problems showed no distinct ...effects on two types of bullying victimization.•Boys high in loneliness tended to experience more cyberbullying victimization.
Traditional bullying and cyberbullying victimization are associated with adolescents’ mental health problems, but the temporal sequence of these relations remains unclear. The present study analyzed the temporal and reciprocal relationships between both types of bullying victimization and six frequent psychosocial problems during adolescence: depression, general anxiety, stress, low self-esteem, social anxiety, and loneliness.
A total of 661 Chinese adolescents in grades 7 and 8 at the initial wave of the study responded to the survey items assessing their bullying victimization experiences and self-reported psychosocial problems. This research was conducted at three separate time points, over a year and a half period.
Bullying victimization did not predict adolescents’ psychosocial problems. Instead, adolescents with psychosocial problems were more likely to experience bullying victimization. Depression and general anxiety were two common predictors of traditional bullying and cyberbullying victimization. Stress was a specific predictor of traditional bullying victimization, whereas self-esteem, social anxiety, and loneliness were specific predictors of cyberbullying victimization. Psychosocial problems did not differentially predict the two types of bullying victimization. Boys with higher levels of loneliness were more likely than girls to experience cyberbullying victimization.
The present study is limited in terms of its sample selection and self-reported instruments.
This study emphasizes adolescents’ psychosocial problems as the potential risk factors for their future bullying victimization. Education professionals should pay special attention to adolescents’ mental health problems when formulating bullying interventions and programs.
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