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BACKGROUND: Subjective well-being (SWB) is associated with social support in cross-sectional studies. However, it remains unclear whether and how social support predicts SWB longitudinally, especially during the COVID-19 contingency. METHODS: By adopting a prospective design, the current work addressed this research question in a sample of 594 participants from the U.K. The data were collected via the online platform, Prolific, at two time points (June, 2020 and August, 2021) with a 14-month interval. Descriptive analysis and a moderated mediation model were conducted to test the proposed hypotheses. RESULTS: Baseline social support was a significant predictor of subjective well-being (SWB) 14 months later, even after controlling for baseline SWB and other covariates such as personality traits. Additionally, affect balance (i.e., the affective component of SWB) fully mediated the link between baseline social support and subsequent life satisfaction (i.e., the cognitive component of SWB). Moreover, household income moderated this relationship, indicating a stronger mediation for individuals with lower monthly household income. CONCLUSION: The present work sheds light on the underlying mechanism and boundary condition of the association between social support and different components of SWB during the COVID-19 pandemic.
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COVID-19 , Humanos , COVID-19/epidemiologia , Estudos Prospectivos , Estudos Transversais , Pandemias , Apoio SocialRESUMO
The present work investigated fundamental mediating mechanisms (i.e., flow experience, organizational identification, and trust), underlining the impact of authentic leadership on employee resilience during the turbulent COVID-19 pandemic. A total of 901 frontline employees working in a construction engineering company in China participated in this study. They were asked to respond to a battery of questionnaires comprising Trust Scale (affective-based, cognitive-based, and competence-based), Flow Proneness Questionnaire (FPQ), Organizational Identification Scale, Authentic Leadership Questionnaire, and Employee Resilience Scale. Results of structural equation modeling indicated that: (1) Authentic leadership positively predicted employee resilience in the COVID-19 pandemic, directly and indirectly. (2) As for the indirect relationship, two parallel mediation effects and one chain mediation were detected: employees' flow at work and organizational identification respectively and dependently mediated the relationship between authentic leadership and employee resilience; trust and organizational identification played as a chain mediation role within authentic leadership-employee resilience association. The study provides empirical evidence for organizations' resilience-building and leadership training programs. Findings also contribute to the literature by facilitating flow intervention, promoting organizational identification and trust to enhance the effect of authentic leadership in promoting positive psychological functioning of employee resilience. Limitations with respect to future research directions were also outlined.
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Through the lens of social identity theory, this work aims to investigate the impact of servant leadership on employee resilience during the COVID-19 pandemic and to explore their underlying mechanisms through two types of social identity: organizational identification and professional identity. To test our hypotheses, an online survey was conducted via a large number of 703 employees working in public organizations in southwest China. Results yielded from the structural equation modeling analysis via AMOS (24.0) indicated that the effect of servant leadership on employee resilience was fully mediated by organizational identification and professional identity, respectively. Besides, the association between servant leadership and employee resilience was sequentially mediated from organizational identification to professional identity, and from professional identity to organizational identification. This study provides the first evidence of the predictive effect of servant leadership on employee resilience through organizational identification and professional identity, highlighting the significance of social identity for building and maintaining employees' resilience in coping with challenges posed by COVID-19.
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In the process of the attitude measurement for a steering drilling system, the measurement of the attitude parameters may be uncertain and unpredictable due to the influence of server vibration on bits. In order to eliminate the interference caused by vibration on the measurement and quickly obtain the accurate attitude parameters of the steering drilling tool, a new method for multi-sensor dynamic attitude combined measurement is presented. Firstly, by using a triaxial accelerometer and triaxial magnetometer measurement system, the nonlinear model based on the quaternion is established. Then, an improved adaptive fading square root unscented Kalman filter is proposed for eliminating the vibration disturbance signal. In this algorithm, the square root of the state covariance matrix is used to replace the covariance matrix in the classical unscented Kalman filter (UKF) to avoid the filter divergence caused by the negative definite state covariance matrix. The fading factor is introduced into UKF to adjust the filter gain in real-time and improve the adaptive ability of the algorithm to mutation state. Finally, the computational method of the fading factor is optimized to ensure the self-adaptability of the algorithm and reduce the computational complexity. The results of the laboratory test and the field-drilling data show that the proposed method can filter out the interference noise in the attitude measurement sensor effectively, improve the solution accuracy of attitude parameters of drilling tools in the case of abrupt changes in the measuring environment, and thus ensuring the dynamic stability of the well trajectory.
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Plants produce countless specialized metabolites crucial for their development and fitness, and many are useful bioactive compounds. Capsaicinoids are intriguing genus-specialized metabolites that confer a pungent flavor to Capsicum fruits, and they are widely applied in different areas. Among the five domesticated Capsicum species, Capsicum chinense has a high content of capsaicinoids, which results in an extremely hot flavor. However, the species-specific upregulation of capsaicinoid-biosynthetic genes (CBGs) and the evolution of extremely pungent peppers are not well understood. We conducted genetic and functional analyses demonstrating that the quantitative trait locus Capsaicinoid1 (Cap1), which is identical to Pun3 contributes to the level of pungency. The Cap1/Pun3 locus encodes the Solanaceae-specific MYB transcription factor MYB31. Capsicum species have evolved placenta-specific expression of MYB31, which directly activates expression of CBGs and results in genus-specialized metabolite production. The capsaicinoid content depends on MYB31 expression. Natural variations in the MYB31 promoter increase MYB31 expression in C. chinense via the binding of the placenta-specific expression of transcriptional activator WRKY9 and augmentation of CBG expression, which promotes capsaicinoid biosynthesis. Our findings provide insights into the evolution of extremely pungent C. chinense, which is due to natural variations in the master regulator, and offers targets for engineering or selecting flavor in Capsicum.
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Evolução Biológica , Capsicum/genética , Variação Genética , Proteínas de Plantas/genética , Fatores de Transcrição/genética , Sequência de Bases , Vias Biossintéticas/genética , Capsaicina/metabolismo , Regulação da Expressão Gênica de Plantas , Mapeamento Físico do Cromossomo , Proteínas de Plantas/metabolismo , Regiões Promotoras Genéticas , Locos de Características Quantitativas/genética , Transativadores/metabolismo , Fatores de Transcrição/metabolismo , Transcrição GênicaRESUMO
Architectural and environmental psychology literature has shown the importance of urban design in provoking stress feelings or enhancing well-being and quality of life. The aim of this contribution is to show the main results of a set of cross-cultural survey studies concerning the perceived quality of urban features at the neighbourhood level. A questionnaire was used including the extended or the short version of the 11 scales measuring Perceived Residential Environment Quality Indicators (PREQIs), which cover architectural, social, functional, and contextual aspects. Both versions of PREQIs showed a similar factorial structure and a good (or at least acceptable) reliability across different geographical contexts, even though some differences emerged in those countries that are more distant from the Western linguistic and cultural milieu. The development of tools like PREQIs should increase a "user-centred" vision on urban issues.
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Comparação Transcultural , Meio Ambiente , Características de Residência , Feminino , França , Humanos , Itália , Masculino , Análise de Componente Principal , Meio Social , Inquéritos e QuestionáriosRESUMO
BACKGROUND: Existing research has linked individuals' flow experience - a positive affective and cognitive state of deep immersion and engagement in daily activities - and their well-being, particularly among university students. A growing number of longitudinal studies have further contributed to this understanding. However, limited attention has been given to exploring the dynamic interplay between these two variables and their underlying mechanisms (i.e., the mediator) of psychological resilience, specifically among university students in the context of the COVID-19 pandemic. AIMS: To address this research gap, the present study draws on self-determination, flow and broaden-and-build theories. It examines the temporal dynamics and relationships between flow experience and well-being, and the mediating role of psychological resilience among Chinese university students. SAMPLE: The study adopts a three-wave longitudinal design with a sample of 474 university students in Southwest China. METHODS: Participants' flow experience, well-being and psychological resilience were measured across three time waves. RESULTS: The findings of this study reveal that flow experience predicts well-being across the three waves and that psychological resilience mediates this prediction. This empirical evidence emphasizes the significance of both flow experience and psychological resilience in contributing to the well-being of university students over time amid COVID-19. CONCLUSIONS: These findings enrich our understanding of the factors contributing to well-being in educational settings and provide highly relevant and timely insights for developing strategies to foster well-being among university students, especially in the transition into the post-pandemic era; findings also offer valuable insights not only for researchers but also for educators and policymakers.
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This study was conducted following a magnitude 6.8 earthquake that occurred in early September 2022, coinciding with the commencement of a positive psychology course for the affected students. A sample of 479 Chinese undergraduates was recruited for an intervention focused on weekly gratitude practice. Data were collected through an online questionnaire package at 3 time points: the first week of the course (Time 1), the fifth week (Time 2), and the ninth week (Time 3), assessing gratitude, learning engagement, and the meaning of life. Findings revealed that gratitude significantly predicted meaning in life through learning engagement over time. This highlights the significant mediating role of learning engagement in the context of earthquakes and provides insights for positive interventions aimed at facilitating personal growth among emerging adults in higher educational settings, particularly those who have experienced traumatic events such as earthquakes.
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Terremotos , Estudantes , Humanos , Masculino , Feminino , China , Estudantes/psicologia , Adulto Jovem , Inquéritos e Questionários , Adulto , Adolescente , Universidades , AprendizagemRESUMO
To control the spread and transmission of airborne particles (especially SARS-CoV-2 coronavirus, recently) in the indoor environment, many control strategies have been employed. Comparisons of these strategies enable a reasonable choice for indoor environment control and cost-effectiveness. In this study, a series of experiments were conducted in a full-scale chamber to simulate a conference room. The control effects of four different strategies (a ventilation system (320 m3/h) with and without a baffle, a specific type of portable air cleaner (400 m3/h) and a specific type of desk air cleaner (DAC, 160 m3/h)) on the transportation of particles of different sizes were studied. In addition, the effects of coupling the ventilation strategies with five forms of indoor airflow organization (side supply and side or ceiling return, ceiling supply and ceiling or side return, floor supply and ceiling return) were evaluated. The cumulative exposure level (CEL) and infection probability were selected as evaluation indexes. The experimental results showed that among the four strategies, the best particle control effect was achieved by the PAC. The reduction in CEL for particles in the overall size range was 22.1% under the ventilation system without a baffle, 34.3% under the ventilation system with a baffle, 46.4% with the PAC, and 10.1% with the DAC. The average infection probabilities under the four control strategies were 11.3-11.8%, 11.1-11.8%, 9.1-9.5%, and 18.2-19.7%, respectively. Among the five different forms of airflow organization, the floor supply and ceiling return mode exhibited the best potential ability to remove particles.
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BACKGROUND: Primary cancer of the appendix is rare and often difficult to diagnose preoperatively due to the lack of specific clinical symptoms. Autoimmune encephalitis (AIE) is the most common cause of non-infectious encephalitis. The etiologies of AIE include tumors (paraneoplastic), infections (parainfections), or recessive infections. The tumors that have been reported to cause AIE include thymomas, ovarian teratomas, lung cancers, and breast cancers. However, there are no reports of AIE occurring after surgery for appendiceal cancer. This report describes the diagnosis and treatment of a patient with an appendiceal cancer and postoperative AIE. CASE SUMMARY: We report the case of a 47-year-old man who was transferred to our hospital due to a recurrent low intestinal obstruction. Abdominal enhanced computed tomography was used to consider the possibility of a terminal ileal tumor with serous infiltration and lymph node metastasis. A right hemi-colectomy was performed under general anesthesia with an ileo-transcolon anastomosis and laparoscopic exploration. The postoperative pathologic evaluation revealed a high-grade goblet cell carcinoma of the appendix, accompanied by mesangial and abdominal lymph node metastases, and neural tube and vascular infiltration. The operation was completed without complication. The patient developed restlessness on postoperative day 4, and gradually developed a disturbance of consciousness on postoperative day 6. He was transferred to West China Hospital of Sichuan University and diagnosed with AIE. CONCLUSION: Albeit rare, the occurrence of neurologic and psychiatric symptoms in patients with an appendiceal cancer postoperatively suggests the possibility of AIE.
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Within environmental psychology, the restorative environment is receiving increasing attention due to its favorable impact on people's mental recovery, stress reduction, and psychophysiological well-being. Flow theory, as one of the foundations of positive psychology, is a popular theoretical framework for understanding human flourishing and well-being. The restorative environment is suggested to facilitate flow experience and city identity from the perspective of positive environmental psychology. Nonetheless, systematic research investigating them all together can hardly be traced. Thus, through a preliminary review of 169 relevant studies retrieved from the data source, this work proposes a novel theoretical model in which people's interactions within the restorative environment facilitate their experience of flow and perceived city identity. Additionally, this research provides conceptual guidance for city workers to engage in nature-based intervention and leisure therapy for improved well-being. Overall, this review endeavors to contribute to developing urban workers' restoration, happiness, and well-being from both practical and theoretical perspectives.
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Modelos Teóricos , HumanosRESUMO
The wide-spread novel coronavirus disease (Covid-19) has posed severe challenges to people's life especially their life style. Due to the residential confinement contingency, people were restricted in their study, work and leisure within constrained residential community. The physical environment of residential community therefore became the main activity place and it thus played a significant role for facilitating inhabitants' daily activities and influencing community identity. Based on the eudaimonic identity theory, this study explored how the spatial dimensions of perceived residential environment quality (PREQ), activity experience (i.e., flow) and social capital, would impact on urbanities' residential community identity during Covid-19. Results from 508 Chinese residential inhabitants analyzed via structural equation modeling suggested that: a better degree in the spatial dimensions of PREQ would predict a stronger community identity; flow and social capital mediated the relationship between the spatial dimensions of PREQ and the inhabitants' community identity. The implications of such accounts for our understanding of community identity are then discussed, considering the important meaning of the relationships between people and the perceived physical properties of their residential place.
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The purpose of this research is to utilize factor analyses to evaluate the reliability and factorial structure of an abbreviated version of the instrument that includes indicators of perceived residential environment quality (PREQ) and neighborhood attachment (NA) in Chinese urban environments. The instrument has 11 scales that measure PREQ and 1 scale measuring neighborhood attachment (NA). Architectural and urban planning aspects (three scales: Architectural and Town-planning Space, Organization of Accessibility and Roads, Green Areas), socio-relational aspects (one scale: People and Social Relations), functional aspects (four scales: Welfare Services, Recreational Services, Commercial Services, and Transport Services), and contextual aspects (three scales: Pace of Life, Environmental Health, and Upkeep and Care) are all covered by the 11 PREQ scales. A total of 1,332 people living in Chinese urban cities completed a self-report questionnaire that included these 12 scales. A calibration sample and a validation sample that were randomly split from the total sample verified the factorial structures of this instrument, and the abbreviated instrument had acceptable reliability and validity. The validated abbreviated version of the PREQ and NA instruments allowed for a more reliable and manageable tool that might lessen respondents' exhaustion of a large number of items, this also contributed to the policy-making for urban planning and practical architectural design.
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Meio Ambiente , Características de Residência , China , Humanos , Reprodutibilidade dos Testes , Inquéritos e QuestionáriosRESUMO
The supply of fresh air for underground rail transit systems is not as simple as opening windows, which is a conventional ventilation (CV) measure adopted in aboveground vehicles. This study aims to improve contaminant dilution and air purification in subway car ventilation systems and the safety of rail transit post-coronavirus disease pandemic era. We designed an air conditioning (AC) terminal system combined with stratum ventilation (SV) to enable energy consumption reduction for subway cars. We experimentally tested the effectiveness of a turbulence model to investigate ventilation in subway cars. Further, we compared the velocity fields of CV and SV in subway cars to understand the differences in their airflow organizations and contaminant removal efficiencies, along with the energy savings of four ventilation scenarios, based on the calculations carried out using computational fluid dynamics. At a ventilation flow rate of 7200 m3/h, the CO2 concentration and temperature in the breathing areas of seated passengers were better in the SV than in the CV at a rate of 8500 m3/h. Additionally, the energy-saving rate of SV with AC cooling was 14.05%. The study provides new ideas for reducing the energy consumption of rail transit and broadens indoor application scenarios of SV technology.
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Poluentes Atmosféricos , Poluição do Ar em Ambientes Fechados , Ferrovias , Automóveis , Poluição do Ar em Ambientes Fechados/prevenção & controle , Poluição do Ar em Ambientes Fechados/análise , Poluentes Atmosféricos/análise , Monitoramento Ambiental , VentilaçãoRESUMO
Authentic leadership is essential for predicting employee resilience. However, despite fruitful findings, more adapted models of authentic leadership - employee resilience based on empirical findings can serve as a guide to understand the complex mediators and moderators in different industries such as in construction engineering project organizations during the turbulent pandemic. This study, therefore, based on the organizational identification theory and flow theory through the lens of positive organizational psychology, aims to disentangle the authentic leadership-employee resilience association by investigating their underlying mechanism and their boundary condition. To test our hypothetical model, we applied a cross-sectional design with data collected from a large sample of 884 employees from a big enterprise in China. Findings from confirmatory factor analysis, structural equation modeling analysis, and Hayes's conditional process model indicated that: authentic leadership positively predicted employee resilience through the partial mediation effect of organizational identification, and such a mediation model was moderated by the experience of flow. In other words, flow moderated the relationships between authentic leadership, organizational identification, and employee resilience. Findings provide evidence for cultivating leaders' authenticity in promoting their subordinates' resilience; findings also highlight the significance of organizational identification in bridging authentic leadership and employee resilience and the essential role of flow experience in supporting the relationships mentioned above.
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Moral identity is associated with people's subjective well-being; however, little is known about how an individual with moral identity relates to one's subjective well-being. Based on the eudaimonic identity theory, the current study proposed that identity commitment quality is a critical mechanism that links moral identity (two dimensions: internalization and symbolization) and subjective well-being. We examined our hypotheses in 419 college students, who completed the Self-importance of Moral Identity Questionnaire, Satisfaction with Life Scale, Scale of Positive and Negative Experience, and Questionnaire for Eudaimonic Well-being. Results confirmed significant positive correlations among moral identity, identity commitment quality, and subjective well-being; findings also suggested that both the internalization and symbolization dimensions of moral identity predicted subjective well-being through identity commitment quality, and identity commitment quality fully mediated the pathway relationship between moral identity and subjective well-being. We discussed these findings with respect to implications and proposed research suggestions for future studies.
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Princípios Morais , Estudantes , Humanos , Inquéritos e QuestionáriosRESUMO
The present study investigated a conceptual model by testing flow experience and subjective well-being of university students during Coronavirus Diseas-19 (COVID-19) via considering their underlying mechanisms of academic self-efficacy and self-esteem. A total of 1,109 Chinese university students completed a questionnaire containing scales of subjective well-being, flow, academic self-efficacy, and self-esteem. Results yielded from the structural equation modeling analysis indicated a significant and positive association between flow experience and subjective well-being, and such an association was sequentially mediated by academic self-efficacy and self-esteem. Findings also provided empirical evidence for the proposed model highlighting the significant role of flow experience at the higher educational context in predicting subjective well-being of Chinese university students, and how such a relation can be supported by suggested mediating roles academic self-efficacy and self-esteem played.
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The worldwide spread of a new coronavirus (SARS-CoV-2) since December 2019 has posed a severe threat to individuals' well-being. While the world at large is waiting that the released vaccines immunize most citizens, public health experts suggest that, in the meantime, it is only through behavior change that the spread of COVID-19 can be controlled. Importantly, the required behaviors are aimed not only at safeguarding one's own health. Instead, individuals are asked to adapt their behaviors to protect the community at large. This raises the question of which social concerns and moral principles make people willing to do so. We considered in 23 countries (N = 6948) individuals' willingness to engage in prescribed and discretionary behaviors, as well as country-level and individual-level factors that might drive such behavioral intentions. Results from multilevel multiple regressions, with country as the nesting variable, showed that publicized number of infections were not significantly related to individual intentions to comply with the prescribed measures and intentions to engage in discretionary prosocial behaviors. Instead, psychological differences in terms of trust in government, citizens, and in particular toward science predicted individuals' behavioral intentions across countries. The more people endorsed moral principles of fairness and care (vs. loyalty and authority), the more they were inclined to report trust in science, which, in turn, statistically predicted prescribed and discretionary behavioral intentions. Results have implications for the type of intervention and public communication strategies that should be most effective to induce the behavioral changes that are needed to control the COVID-19 outbreak.
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COVID-19/prevenção & controle , COVID-19/psicologia , Confiança/psicologia , Adulto , Idoso , COVID-19/epidemiologia , Infecções por Coronavirus/epidemiologia , Surtos de Doenças , Feminino , Governo , Comportamentos Relacionados com a Saúde/fisiologia , Humanos , Intenção , Masculino , Pessoa de Meia-Idade , Saúde Pública , SARS-CoV-2/patogenicidadeRESUMO
The stereotype "what is beautiful is good" suggests that having an attractive physical appearance is very important to people's lives. Physical attractiveness, as an important personal trait, plays vital roles for shaping one's first impression, and for influencing one's subsequent evaluation and selection, based on obvious visual features. However, the contextual difference of the physical attractiveness between a group and its group members has been given less attention. For this reason, Van Osch et al. proposed and tested that the perceived physical attractiveness of a group is greater than the average attractiveness of its members (GA-effect), while Walker and Vul found that an individual as a group member is perceived to be more attractive in group context than in isolation (cheerleader effect). Our present work seeks to replicate these two effects on a sample of 1005 Chinese participants to check whether such effects also exist in China, a collectivist culture. Participants were asked to rate the degree of attractiveness presented in each photo stimuli and in each rating condition, and the results show that: (a) the participants' ratings of physical attractiveness of a group was significantly higher than the average attractiveness of its members (i.e., replicating the GA-effect); (b) the participants' ratings of physical attractiveness of an individual was evaluated higher in a group than in isolation (i.e., replicating the cheerleader effect); and (c) the larger the group size, the larger the GA-effect. This validating study may aid in understanding human behavior, judgments, and perceptions according to the GA-effect and the cheerleader effect used in a different context in China.