Structural superlubricity at the interface of penta-BN2.

Two-dimensional (2D) materials have been widely used as lubricants due to their weak interlayer interaction and low shear resistance for interlayer sliding. Composed entirely of five-membered rings, penta-BN2 monolayer has excellent thermal and mechanical stability, higher hardness and a negative Poisson's ratio. In this work, we investigate the frictional properties at both the commensurate and incommensurate contacting interfaces of penta-BN2 by adopting the molecular dynamics (MD) simulation method. Our calculations demonstrate robust superlubricity at the incommensurate contacting interface of penta-BN2. The ultra-low friction is explained by the potential energy surface (PES) fluctuations, interlayer binding energy and out-of-plane motion amplitude of the sliding layer. In addition, our calculations show that the anisotropy of friction at the commensurate contacting interface is more obvious compared with that at the incommensurate contacting interface. Finally, the influences of the size of the Moiré pattern, normal force, temperature and sliding velocity on the friction are examined. Our results show that 2D penta-BN2 is a promising solid lubricant, enriching the family of 2D lubrication materials.

Psychological research on retirement.

Retirement as a research topic has become increasingly prominent in the psychology literature. This article provides a review of both theoretical development and empirical findings in this literature in the past two decades. We first discuss psychological conceptualizations of retirement and empirical operationalizations of retirement status. We then review three psychological models for understanding the retirement process and associated antecedents and outcomes, including the temporal process model of retirement, the multilevel model of retirement, and the resource-based dynamic model for retirement adjustment. We next survey the empirical findings regarding how various individual attributes, job and organizational factors, family factors, and socioeconomic context are related to the retirement process. We also discuss outcomes associated with retirement in terms of retirees' financial well-being, physical well-being, and psychological well-being.

Decoding the research landscape of drug resistance and therapeutic approaches in head and neck cancer: a bibliometric analysis from 2000 to 2023.

Introduction: Head and neck cancer is one of the most common tumors worldwide. However, drug resistance in its treatment has become a major factor limiting the efficacy. This study aims to comprehensively understand the current status of research in this field. Methods: The study analyzes papers related to therapeutic resistance in head and neck cancer published between 2000 and 2023 in the Web of Science Core Collection To achieve the research objectives, we searched the WoSCC for research and review papers on therapeutic resistance in head and neck cancer from 2000 to 2023, screened the English literature, and analyzed the research hotspots, academic collaborations, and trends in detail using tools such as Citespace, SCImago Graphica, and VOS viewer. Results: This study summarizes 787 head and neck cancer treatment resistance publications from WoSCC. The analysis showed that China and the United States are the major contributors in this field, and Grandis Jennifer R and Yang Jai-Sing are the key scholars. Keyword analysis showed that "cisplatin resistance" is a continuing focus of attention, while "Metastasis" and "Ferroptosis" may be emerging research hotspots. Literature clustering analysis pointed out that "Ferroptosis", "Immunotherapy" and "ERK signaling" were the recent hotspots that received extensive attention and citations. Finally, we discuss the current status and challenges in drug-resistant therapies for head and neck cancer. Conclusion: This study is the first comprehensive bibliometric analysis of drug resistance in head and neck cancer. Reveals current trends and helps researchers grasp cutting-edge hotspots in the field.

The moderating role of attachment anxiety on social network site use intensity and social capital.

This study examined the moderating role of attachment anxiety on the relationship between intensity of social network site use and bridging, bonding, and maintained social capital. Data from 322 undergraduate Chinese students were collected. Hierarchical regression analyses showed positive relationships between online intensity of social network site use and the three types of social capital. Moreover, attachment anxiety moderated the effect of intensity of social network site use on social capital. Specifically, for students with lower attachment anxiety, the relationships between intensity of social network site use and bonding and bridging social capital were stronger than those with higher attachment anxiety. The result suggested that social network sites cannot improve highly anxiously attached individuals' social capital effectively; they may need more face-to-face communications.

Preretirement resources and postretirement life satisfaction change trajectory: Examining the mediating role of retiree experience during retirement transition phase.

Successfully adjusting to retirement represents a major challenge for many older workers. Following the temporal unfolding of retirement process (i.e., preretirement, transition, and postretirement phases), the present study draws on the resource-based dynamic model of retirement adjustment to investigate how a diverse set of preretirement personal resources (i.e., physical health, mental health, financial well-being, family support, proactive personality, and general cognitive ability) impact postretirement change trajectory of life satisfaction through the pathway of retirement transition experience (i.e., retirees' subjective experience in terms of how well they are adjusting during the transition phase of retirement immediately after the workforce exit). Using multiwave longitudinal data from 667 Chinese older workers transitioning into retirement collected with a prospective design over 2 years, we found positive effects of the levels of preretirement mental health, financial well-being, family support, proactive personality, and cognitive ability on retirement transition experience. We also found positive effects of the changes in physical health, financial well-being, and family support on retirement transition experience. Retirement transition experience, in turn, was associated with older workers' postretirement change trajectory of life satisfaction. Our findings highlight the importance of the transition phase of retirement, as well as the role of retirement transition experience during this critical phase in explaining the relationships between preretirement resources, in terms of both their levels and changes, and postretirement changes in well-being. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Maternal cultural values and parenting practices: longitudinal associations with Chinese adolescents' aggression.

Interrelations among cultural values, parenting practices, and adolescent aggression were examined using longitudinal data collected from Chinese adolescents and their mothers. Adolescents' overt and relational aggression were assessed using peer nominations at Time 1 (7th grade) and Time 2 (9th grade). Mothers reported endorsement of cultural values (collectivism and social harmony) and parenting practices (psychological control and inductive reasoning) at Time 1. While controlling for Time 1 adolescent aggression, maternal collectivism and social harmony indirectly and longitudinally linked to adolescent aggression through maternal parenting practices. Specifically, maternal collectivism was positively related to inductive reasoning, which, in turn, negatively related to adolescent overt aggression at Time 2. Similarly, maternal social harmony negatively related to psychological control that positively predicted later adolescent relational aggression. Results of the present study shed light on mechanisms through which culture may indirectly influence adolescent aggression.

Psychometric properties of a Chinese translation of the political skill inventory.

Ferris and colleagues defined political skill in organizations as "the ability to effectively understand others at work and to use such knowledge to influence others to act in ways that enhance one's personal and/or organizational objectives." In this study, the psychometric properties of a Chinese translation of the Political Skill Inventory were investigated, supporting construct, convergent, discriminant, and criterion validities. The results suggested that the Chinese translation retained a four-factor structure. Political skill was positively correlated with self-monitoring, conscientiousness, political savvy, emotional intelligence, extraversion, agreeableness, and proactive personality, and was negatively correlated with trait anxiety and external locus of control. After controlling for age, sex, and job tenure, political skill was predictive of task performance, work contribution, and interpersonal help.

Economic inequality is linked to biased self-perception.

People's self-perception biases often lead them to see themselves as better than the average person (a phenomenon known as self-enhancement). This bias varies across cultures, and variations are typically explained using cultural variables, such as individualism versus collectivism. We propose that socioeconomic differences among societies--specifically, relative levels of economic inequality--play an important but unrecognized role in how people evaluate themselves. Evidence for self-enhancement was found in 15 diverse nations, but the magnitude of the bias varied. Greater self-enhancement was found in societies with more income inequality, and income inequality predicted cross-cultural differences in self-enhancement better than did individualism/collectivism. These results indicate that macrosocial differences in the distribution of economic goods are linked to microsocial processes of perceiving the self.

Designing Self-Sustainable Icephobic Layer by Introducing a Lubricating Un-Freezable Water Hydrogel from Sodium Polyacrylate on the Polyolefin Surface.

A convenient, environment-friendly, and cost-effective method to keep anti-icing for a long time was highly desirable. Slippery lubricant layers were regarded to be effective and promising for anti-icing on different surfaces, but the drought-out of lubricants and the possible detriments to the environment were inevitable. By combining super-high molecular weight sodium polyacrylate (H-PAAS) with polyolefin through a one-pot method, a self-sustainable lubricating layer with extremely low ice adhesion of un-freezable water hydrogel was achieved at subzero conditions. The lubricant hydrogel layer could auto-spread and cover the surface of polyolefin after encountering supercooled water, frost, or ice. Due to the reduction of storage modulus in the interface, the ice adhesion of the specimen surfaces was far below 20 kPa, varying from 5.13 kPa to 18.95 kPa. Furthermore, the surfaces could preserve the fairly low adhesion after icing/de-icing cycles for over 15 times and thus exhibited sustainable durability. More importantly, this method could be introducing to various polymers and is of great promise for practical applications.

Individualism, collectivism, and Chinese adolescents' aggression: intracultural variations.

This study examined the relations between cultural values (i.e., individualism and collectivism) and aggression among 460 (234 girls) Chinese adolescents. Conflict level and social status insecurity were examined as potential explaining mechanisms for these relations. The results showed that adolescents' endorsement of collectivism was negatively related to their use of overt and relational aggression as reported by teachers and peers, whereas positive associations were found between the endorsement of individualism and adolescent aggression. Adolescents' conflict level and social status insecurity accounted for a significant part of these associations. Findings of this study demonstrate the importance of examining intracultural variations of cultural values in relation to adolescent aggression as well as the process variables in explaining the relations.

SNSs usage among Chinese internet users: an empirical study.

Renren and Kaixin, which are Chinese versions of "Facebook", are the main Social Network Sites (SNSs) in China. Although many researchers have been exploring SNSs usage and have gained rich results, there are limited studies for the understanding of SNSs usage in China. In this present study, with 777 Chinese participants, we test variables influencing Chinese SNSs usage based on the technology acceptance model (TAM). Using structural equation modeling techniques, the empirical results confirm that the perceived ease of use significantly determines the perceived usefulness, which in turn influences SNSs use intensity. Meanwhile, the Internet self-efficacy could affect perceived ease of use and further determine SNSs use intensity indirectly. Overall, our results could be used to describe and predict SNSs usage among Chinese Internet users.

The Psychological Consequences of the COVID-19 on Residents and Staff in Nursing Homes.

In this commentary, we overview the existing research on psychological consequences caused by COVID-19 for both residents and staff in the nursing homes. We identify loneliness and emotional anxiety as main psychological consequences for nursing home residents, whereas uncertainty, hopelessness, work overload, and role conflicts are the most salient psychological challenges for the staff in the nursing homes during the pandemic. We then summarize the existing strategies and interventions responsive to the above challenges. We suggest that this overview may help nursing home managers understand what are the key psychological challenges and how to deal with them during a crisis period. Finally, we also encourage future research to pay more attention to exploring interventions specifically designed for vulnerable older people, understanding the role of the nursing home leader team in managing emotional and ethical challenges in organizations, and developing community-wide collaboration with multiple external stakeholders.

Measurement invariance of the moral vitalism scale across 28 cultural groups.

Moral vitalism refers to a tendency to view good and evil as actual forces that can influence people and events. The Moral Vitalism Scale had been designed to assess moral vitalism in a brief survey form. Previous studies established the reliability and validity of the scale in US-American and Australian samples. In this study, the cross-cultural comparability of the scale was tested across 28 different cultural groups worldwide through measurement invariance tests. A series of exact invariance tests marginally supported partial metric invariance, however, an approximate invariance approach provided evidence of partial scalar invariance for a 5-item measure. The established level of measurement invariance allows for comparisons of latent means across cultures. We conclude that the brief measure of moral vitalism is invariant across 28 cultures and can be used to estimate levels of moral vitalism with the same precision across very different cultural settings.

When do objects become more attractive? The individual and interactive effects of choice and ownership on object evaluation.

Four studies used the Implicit Association Test to explore the individual and interactive influence of perceived ownership and perceived choice on object evaluation. In Study 1, participants implicitly preferred their possessions over others' when all chosen by a third party (i.e., the ownership effect). In Study 2, participants implicitly preferred self-chosen objects over other-chosen objects when all given to the third party (i.e., the choice effect). In Study 3, the ownership effect disappeared when participants compared their self-chosen possessions with others' possessions that were chosen by the participants. In Study 4, the choice effect remained even when participants compared their self-chosen possessions with their possessions that were chosen by others. These results suggest that while the ownership effect could be attenuated by perceived choice, the choice effect is stable even under the influence of perceived ownership.

Psychometric properties of the Chinese translation of the proactive personality scale.

The purpose of the present study was to examine the psychometric properties of the Chinese translation of the Proactive Personality Scale. Four samples were surveyed. In Sample 1 and Sample 2, exploratory and confirmatory factor analysis results confirmed the unidimensional structure of the 10-item abbreviated version of the scale. In Sample 2, Proactive Personality scores were found to be positively correlated with the personality factors of Extraversion, Conscientiousness, Openness, and Agreeableness, and negatively correlated with Neuroticism. In Sample 3, Proactive Personality was found to be positively related to self-efficacy and political skill. In Sample 4, demographics controlled, Proactive Personality explained significant incremental variance in the employees' self-rated career satisfaction and job performance as rated by immediate supervisors.

Validation of the Personal Need for Structure Scale in Chinese.

To validate the Chinese version of the Personal Need for Structure Scale, questionnaires were administered to 1,418 individuals in three samples. Item-total correlations and internal consistency of the scale were acceptable. The test-retest reliability was .79. Confirmatory factor analysis indicated that the Chinese version comprised two dimensions, as did the original version; Desire for Structure and Response to Lack of Structure. Correlation coefficients between the Personal Need for Structure Scale and other related measures indicated that the scale has acceptable discriminant validity and convergent validity.

A self-regulation perspective on how and when regulatory focus differentially relates to citizenship behaviors.

Although previous research suggests that regulatory focus matters for organizational citizenship behaviors, it is unclear how promotion and prevention focus relate to such behaviors. Integrating regulatory focus theory with theories of self-regulation, we propose a conceptual model that links trait promotion and prevention foci with specific citizenship behaviors through an emotion-related self-regulation mechanism. Using a sample of 227 nurses working in a hospital context, we observed that trait promotion focus and trait prevention focus predict helping and voice via differential effects on emotional exhaustion. Specifically, trait promotion focus had unconditional indirect effects on helping (positive) and voice (negative) through lower levels of emotional exhaustion. In contrast, trait prevention focus was positively related to voice but negatively related to helping through higher levels of emotional exhaustion. Moreover, these indirect effects of trait prevention focus were moderated by employees' reappraisal of their emotional experiences at work, such that trait prevention focus had weaker relations with helping and voice when reappraisal was higher (vs. lower). We discuss theoretical and practical implications of these findings and highlight avenues for future research. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

Attitudes toward computers: a new attitudinal dimension.

The present study examined the reliability and the construct validity of a questionnaire designed to measure the attitudes toward computers in everyday life. A total of 2,050 participants responded to the questionnaire. Confirmatory factor analysis suggests that attitudes toward computers are composed of three dimensions: sense of benefit, sense of dependence, and sense of harm.