RESUMEN

Although "lying flat" has become a new youth subculture phenomenon, it is unclear whether "lying flat" is an antidote or a poison for the youth's mental health. Here, we explored the effect of "lying flat" tendency on mental health using the cross-sectional (Study 1a) and longitudinal designs (Study 1b) as well as the intervention design (Study 2). In Study 1a, we found that the youth's "lying flat" tendency was negatively correlated with their mental health. Importantly, cross-lagged analyses (Study 1b) found that "lying flat" tendency negatively predicted mental health 1 month later, suggesting the temporal directionality between "lying flat" tendency and mental health. In Study 2, we sought to examine whether a longitudinal video intervention could promote the youth's mental health by reducing "lying flat" tendency. The results showed that the eight-day inspirational video intervention significantly reduced the youth's "lying flat" tendency and promoted their mental health. Importantly, "lying flat" tendency mediated the relationship between the inspirational video intervention and mental health. Our study is the first to demonstrate the negatively predictive effect of the "lying flat" tendency on the youth's mental health and provides an economical, convenient, and effective intervention aimed at reducing the "lying flat" tendency to promote the youth's mental health.

RESUMEN

Objective@#To understand the prevalence of Lying Flat behaviors and its association with depressive symptoms among Chinese college students, so as to provide a scientific basis for promoting the physical and mental health development of adolescents.@*Methods@#From July to October 2023, three universities were selected through convenient sampling from Jiangxi Province, Liaoning Province and Beijing City, respectively. Selfdesigned questionnaire links were distributed on campus to collect basic information and Lying Flat behaviors among college students, and the Patient Health Questionnaire-9 (PHQ-9) was utilized to screen for students with depressive symptoms. Finally, a total of 4 225 valid questionnaires were obtained. Chisquare was used to compare of report rates of Lying Flat behaviors across different demographic characteristics. Ordered Logistic regression analysis was used to explore the association between Lying Flat behaviors and depressive symptoms, with Z test used to assess variations in the strength of associations.@*Results@#The reporting rates of academic, life, and social Lying Flat were 32.7%, 17.8% and 17.5%, respectively. And 6.7% of the participants were found of all three Lying Flat behaviors simultaneously.Among college students with three Lying Flat behaviors, the constituent ratios of no, mild, moderate and above depressive symptoms were 9.9%, 30.5% and 59.6%, respectively. Additionally, college students who had three Lying Flat behaviors were more likely to show mild, moderate and above depressive symptoms [OR(95%CI)=2.49(1.60-3.87), 7.69(5.01-11.79), P<0.01].@*Conclusions@#Academic Lying Flat behavior is most prevalent among college students. Academic, life and social Lying Flat behaviors are all significantly positively correlated with depressive symptoms. Attention should be paid to the Lying Flat behaviors and college students psychological health conditions to promote their physical and mental health development.

RESUMEN

In recent years, "lying flat" has been enthusiastically pursued by young people in China, and it is worth studying its cause and social impact. However, there is still a lack of measurement tools that can scientifically evaluate an individual's tendency for "lying flat." In this study, a 6-item "Lying Flat" Tendency Scale was developed and cross-validated for reliability and validity in different samples from China. The findings demonstrated that the scale showed good internal consistency in three different samples; both exploratory factor analysis and confirmatory factor analysis supported the single dimension model of the scale, indicating good construct validity; the LFTS total score was negatively correlated with the satisfaction of basic psychological needs, happiness index, and positive emotions, and was positively correlated with negative emotions; simultaneously, the LFTS total score was also significantly positively correlated with the choice of "lying flat" behavior in the simulated situation. These results show that the scale has good validity and reliability, and can be used as a measuring tool for subsequent empirical research. It will help to promote the development of empirical research on the phenomenon of "lying flat", help to understand the causes and consequences of "lying flat" more deeply, and also help to find effective ways to help young people break out of the "lying flat" dilemma.

RESUMEN

The 'Lying Flat' mindset refers to people's low intention to self-improvement. We hypothesized that personal relative deprivation (PRD), the negative consequence of social comparisons, is one of the reasons that might harm individuals' self-improvement motivations. In study 1 (N = 313), we found that PRD negatively predicted self-improvement after controlling for various confounding variables. This result is confirmed in study 2a (N = 3399) and 2b (N = 3219) by using a national representative sample. Furthermore, Study 2a found that the effect of PRD on self-improvement was mediated by the system-justifying belief (SJB). In study 3 (N = 160), we experimentally demonstrated that PRD harms self-improvement and persistence via its effect on SJB. The higher PRD people experienced, the less they endorsed the SJB, which thereby reduced self-improvement. Taken together, this research manifested that not only would PRD affect people's social beliefs (e.g. SJB) but also hinder self-improvement motivations.

Asunto(s)

RESUMEN

Noble metal nanoparticles are currently of great interest because of their unique optical properties and potential applications in disease diagnostics and cancer treatment. In the present work, a discovery was reported that dsDNA with terminal thiols at its two ends could lie easily flat onto the gold nanoparticle (GNP) surface rather than cross linked different GNPs, indicating an unique self-assembly behavior of newly-designed molecules on GNPs. This could intensively stabilize gold nanoparticles against aggregation even at a high salt concentration. On the basis of this discovery, a novel light-up colorimetric sensing strategy was developed for the detection of p53 gene by combining with the cyclical nucleic acid strand-displacement polymerization (CNDP). For the described colorimetric system, GNPs require no any surface functionalization, and target recognition reaction and CNDP amplification could be conducted under the optimized conditions to achieve a high efficiency. The high detection sensitivity and desirable selectivity are achieved, and the potential practical application was demonstrated. Besides, this sensing system can function in a wide range of salts, making it a suitable platform to cooperate with many biological processes.

Asunto(s)