{"title":"Posttraumatic growth among Israeli female combat veterans: The mediating roles of posttraumatic stress symptoms and self‐efficacy","authors":"Gadi Zerach","doi":"10.1002/smi.3486","DOIUrl":"https://doi.org/10.1002/smi.3486","url":null,"abstract":"Posttraumatic growth (PTG) is a possible common reaction to exposure to potentially traumatic events (PTEs) during military service. However, knowledge about correlates of PTG among female combat veterans is sparse. This study examines associations between combat exposure, posttraumatic stress symptoms (PTSS), general self‐efficacy (GSE), and PTG among Israeli female veterans. This is a cross‐sectional studyA volunteer sample of female Israeli combat veterans (<jats:italic>n</jats:italic> = 616) and non‐combat veterans (<jats:italic>n</jats:italic> = 484) responded to self‐report questionnaires. Combat veterans reported higher levels of combat exposure, PTSS, GSE, and PTG, as compared to non‐combat veterans. Among combat veterans, combat exposure and GSE were associated with greater PTG. Importantly, PTSS and GSE mediated the link between combat exposure and PTG. The study's findings are among the first to report about possible psychological growth outcomes among Israeli combat veterans. Clinicians treating female veterans coping with combat trauma should be aware of the heterogeneity of reactions to military service challenges and the importance of enhancing veterans' GSE to facilitate PTG.","PeriodicalId":501682,"journal":{"name":"Stress & Health","volume":"196 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142247828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Guoxin Huang, Jingyi Wang, Lin Yin, Imran Khan, Betty Yuen Kwan Law, Yi Zheng, Mengze Xu, Vincent Kam Wai Wong, W. L. Wendy Hsiao
{"title":"The impact of test anxiety on oral microbiota among medical students‐A pilot study","authors":"Guoxin Huang, Jingyi Wang, Lin Yin, Imran Khan, Betty Yuen Kwan Law, Yi Zheng, Mengze Xu, Vincent Kam Wai Wong, W. L. Wendy Hsiao","doi":"10.1002/smi.3479","DOIUrl":"https://doi.org/10.1002/smi.3479","url":null,"abstract":"Test anxiety (TA) is a common emotion among students during examinations. Test‐induced stress can remarkably impact students' emotions and limit their performance. Mental stress is a crucial factor that could significantly alter gut microbial composition, but rare reports focus on the correlation between TA and oral microbial composition. This study aims to investigate the impact of TA on students' oral microbiota composition. This study targeted medical students who usually face heavier workloads than average undergraduates. 28 females and 19 males aged 18–30 were enrolled in this study. Questionnaires and saliva samples were collected from the participants before, during, and after the end‐term examination. The level of anxiety was classified as normal, mild, moderate, and severe based on the questionnaire scores. In addition, 16S amplicon sequencing was used to analyse the composition of oral microbes. More than half of the students faced different levels of TA before and after the examination. Over three‐quarters of students showed anxiety during the examination, and a quarter suffered severe TA. The 16S sequencing data showed that TA significantly altered the oral microbial composition between students with and without TA in all three survey periods. Moreover, during the examination, the genera <jats:italic>Rothia</jats:italic> and <jats:italic>Streptococcus</jats:italic>, the oral‐beneficial bacteria, markedly decreased in students with TA. On the other hand, the potential pathogenic genera, such as <jats:italic>Prevotella</jats:italic>, <jats:italic>Fusobacterium</jats:italic>, and <jats:italic>Haemophilus</jats:italic>, significantly increased in the students with TA. And the TA effect on oral microbes displayed a gender difference among students. A high ratio of TA existed in the students during their examination period, and TA could significantly alter the oral microbial composition, decrease beneficial microbes, and promote potential pathogenic oral microbes.","PeriodicalId":501682,"journal":{"name":"Stress & Health","volume":"46 1","pages":"e3479"},"PeriodicalIF":0.0,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142268382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Ricciardelli, R. N. Carleton, M. S. Johnston, S. Dorniani, T. L. Taillieu, T. O. Afifi
{"title":"A Canadian national study of provincial and territorial correctional workers' suicidal ideation, plans, and attempts","authors":"R. Ricciardelli, R. N. Carleton, M. S. Johnston, S. Dorniani, T. L. Taillieu, T. O. Afifi","doi":"10.1002/smi.3476","DOIUrl":"https://doi.org/10.1002/smi.3476","url":null,"abstract":"Correctional workers (CWs) endure several operational stressors (e.g., exposures to potentially psychologically traumatic events) and organisational stressors (e.g., shift work, staff shortages), which are associated with positive screens for mental disorders and self‐reports of suicidal behaviours and thus urgently warrant further inquiry. The Canadian Provincial and Territorial Correctional Worker Mental Health and Well‐Being Study (CWMH) used an online survey to collect data from Canadian correctional service organisations across all 13 provinces and territories. This national Canadian study investigates suicidal behaviours among CWs across diverse occupational roles and provincial and territorial jurisdictions (<jats:italic>n</jats:italic> = 3740, 50.1% female). The results estimated prevalence proportions for self‐reported past‐year and lifetime suicidal thoughts, planning, and attempts across the 13 Canadian provincial and territorial correctional systems, with the exceptions of past‐year suicidal planning in Alberta, Newfoundland and Labrador, New Brunswick, and Yukon where jurisdictional considerations and requests precluded the inclusion of select questions. Substantial proportions of participants reported past‐year or lifetime suicidal ideation (i.e., 9.1%, 29.2%, respectively), planning (i.e., 4.1%, 14.7%, respectively), or attempts (i.e., 0.8%, 7.2%, respectively). Sociodemographic variables (i.e., sex, age, marital status, total years of service, occupational category) were associated with past‐year and lifetime suicidal behaviours. Findings provide opportunities for future research and can inform tailored efforts by clinicians, service providers, and organisational leaders to support proactive interventions and treatments, including supporting the partners and families of CWs, fostering social support networks, and improving access to timely mental health treatment.","PeriodicalId":501682,"journal":{"name":"Stress & Health","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142247825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Heli Kiema‐Junes, Aino Saarinen, Raija Korpelainen, Leena Ala‐Mursula, Maisa Niemelä, Vahid Farrahi, Mirka Hintsanen
{"title":"The association between leisure‐time physical activity and cardiorespiratory and muscular fitness and job strain—Study with a Northern Finland birth cohort of 1966","authors":"Heli Kiema‐Junes, Aino Saarinen, Raija Korpelainen, Leena Ala‐Mursula, Maisa Niemelä, Vahid Farrahi, Mirka Hintsanen","doi":"10.1002/smi.3477","DOIUrl":"https://doi.org/10.1002/smi.3477","url":null,"abstract":"Job strain is a major concern in the workplace. Work‐related stress is an increasing challenge worldwide as it is the leading cause of long‐term sickness absences, disability pensions and lower productivity. Rarely studied simultaneously, both leisure‐time physical activity (LTPA) and physical fitness (PF), which comprises cardiorespiratory fitness (CRF) and muscular fitness (MF), may have potential in preventing and managing job strain. The current study aimed to investigate whether LTPA, CRF and MF predict perceived job strain. In addition, the study examines reverse associations, that is, whether job strain predicts LTPA, CRF and MF. We used longitudinal population‐based data from a Northern Finland birth cohort of 1966 (<jats:italic>n</jats:italic> = 5363) to analyse LTPA, CRF and MF as well as job strain and its components, job demands and job control, at age 31 years (1997) and 46 years (2012). Leisure‐time physical activity was measured with a self‐reported questionnaire whereas CRF and MF were measured as part of clinical examination. Linear regression analyses were used to analyse the data. In both men (<jats:italic>n</jats:italic> = 2548) and women (<jats:italic>n</jats:italic> = 2815), higher baseline MF predicted lower job strain and job demands 15 years later. In women, higher baseline total LTPA predicted higher job demands, whereas in men, higher CRF predicted lower job strain and higher job control. These associations remained significant, also when adjusted for education and occupational status. In the analyses on reverse associations, higher job control and higher job demands were linked to higher leisure‐time moderate‐to‐vigorous physical activity (MVPA) and total LTPA 15 years later among both men and women, except for the association between job demands and total LTPA among women. These associations remained significant after adjustment for education and occupational status, except for the association of job control with MVPA and total LTPA among men. The association of higher job demands and total LTPA became significant in women. We conclude that LTPA and PF seem beneficial in preventing and managing job strain.","PeriodicalId":501682,"journal":{"name":"Stress & Health","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142247826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Relationships between mental toughness, eustress–distress, and mindfulness in adolescents: A network analysis and mediator model testing","authors":"Sema Yazıcı‐Kabadayı","doi":"10.1002/smi.3480","DOIUrl":"https://doi.org/10.1002/smi.3480","url":null,"abstract":"The main aim of this study was to investigate adolescents' eustress–distress and mindfulness by examining mental toughness (MT) using network and mediator analyses. The study included 414 adolescents. The results showed that MT was positively related to eustress and mindfulness, but distress was negatively related to MT. Based on the network analysis findings, we tested mindfulness' mediating role in the relationship between eustress–distress and MT. The findings showed that mindfulness played a significant mediating role. However, the mediating role of mindfulness was negative for the relationship between distress and toughness and positive for eustress. These findings advance eustress, distress, and mindfulness as mechanisms for understanding the effects of MT. Considering current knowledge of MT, eustress, distress, and mindfulness, the results are discussed.","PeriodicalId":501682,"journal":{"name":"Stress & Health","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142176543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Practicing mindfulness can foster monitoring and acceptance after experiencing negative affect","authors":"Mario Wenzel, David Schumacher, Zarah Rowland","doi":"10.1002/smi.3474","DOIUrl":"https://doi.org/10.1002/smi.3474","url":null,"abstract":"Although being mindful, that is, monitoring and accepting one's present feelings, has been shown to be associated with less current negative affect than distraction, acceptance is less endorsed after experiencing negative affect. Thus, acceptance, although effective, may not be endorsed when it is most needed, leading people to endorse other strategies such as distraction instead. In the present study, we examined whether a monitoring and acceptance induction in a laboratory setting (<jats:italic>N</jats:italic> = 258) and a monitoring and acceptance training in daily life (<jats:italic>N</jats:italic> = 125) increased acceptance (Study 1) and monitoring (Study 2) after experiencing negative affect. We found this to be the case: While participants in the control condition showed a significant negative association between prior negative affect and subsequent monitoring and acceptance, participants in the monitor and acceptance condition did not. Thus, even brief monitor and acceptance training is well suited to increasing the likelihood that individuals can monitor and accept their thoughts and feelings when confronted with strong emotions.","PeriodicalId":501682,"journal":{"name":"Stress & Health","volume":"9 1","pages":"e3474"},"PeriodicalIF":0.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142176544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Paula Teixeira, Teresa Leão, Milton Severo, Elisabete Ramos, Sílvia Fraga
{"title":"The relationship between social capital and inflammatory biomarkers in early adulthood: A longitudinal study","authors":"Paula Teixeira, Teresa Leão, Milton Severo, Elisabete Ramos, Sílvia Fraga","doi":"10.1002/smi.3418","DOIUrl":"https://doi.org/10.1002/smi.3418","url":null,"abstract":"Higher levels of social capital (SC) are associated with better health status. However, there is little evidence of the impact of SC on biological health outcomes in the early ages. To identify the association between SC in adolescence and inflammation levels in early adulthood. Prospective study using data from 2435 participants from the Epidemiological Health Investigation of Teenagers in Porto cohort. SC was assessed at age 17 through a self‐administered questionnaire, and high‐sensitivity C‐reactive protein (hs‐CRP) and leucocytes were measured in a fasting blood sample at 17 and 21 years‐old. A principal components analysis was performed to identify the domains of SC. Simple linear regressions were performed to assess the association between SC components and inflammatory status at 17 and 21 years old. Pathway analysis was performed to assess the direct, indirect, and total effects of SC on hs‐CRP and leucocyte levels. We did not find a significant total effect between SC at 17 years‐old and hs‐CRP at 21 years‐old. However, the <jats:italic>Trust/Reciprocity</jats:italic> dimension showed a significant direct effect between SC and hs‐CRP levels at 21 (<jats:italic>β</jats:italic> = −0.065, 95% CI: −0.129; −0.001), as well as a significant total effect (<jats:italic>β</jats:italic> = −0.075, 95% CI: −0.139; −0.011). Regarding leucocyte levels, total SC at 17 years‐old was associated with leucocytes levels at 21 (<jats:italic>β</jats:italic> = −0.115, 95% CI: −0.205; −0.024). Significant direct (<jats:italic>β</jats:italic> = −0.104, 95% CI: −0.194; −0.014) and total effect (<jats:italic>β</jats:italic> = −0.107, 95% CI: −0.199; −0.015) of Trust/Reciprocity on leucocyte levels were observed. Adolescents with higher SC have a low inflammatory level in early adulthood, especially those with greater levels of trust/reciprocity.","PeriodicalId":501682,"journal":{"name":"Stress & Health","volume":"75 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140833128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Anika D. Schulz, Doris Fay, Ina Schöllgen, Johannes Wendsche
{"title":"When help is not wanted: Frustrated needs and poor after‐work recovery as consequences of unwanted help at work","authors":"Anika D. Schulz, Doris Fay, Ina Schöllgen, Johannes Wendsche","doi":"10.1002/smi.3415","DOIUrl":"https://doi.org/10.1002/smi.3415","url":null,"abstract":"Instrumental help and support in the workplace are mostly associated with outcomes that are considered desirable for organisations and their employees. In this study, we seek to shed light on a specific type of help at work that may entail negative consequences: being offered help that is not wanted by the recipient. Drawing on basic psychological needs theory and on theory of ruminative thoughts, we propose that offering unwanted help frustrates the recipient's psychological needs for autonomy and competence, which in turn affects after‐work recovery processes in the form of increased rumination and decreased psychological detachment. Supporting our hypotheses, a cross‐sectional survey study (Study 1, <jats:italic>N</jats:italic> = 279) revealed that employees who were offered unwanted help from coworkers or supervisors experienced higher frustration in need for competence and autonomy, which in turn was associated with higher rumination after work and less psychological detachment from work. Results from a time‐lagged survey with two measurement points 2 weeks apart (Study 2, <jats:italic>N</jats:italic> = 165) showed that being offered unwanted help was concurrently related to increased competence and autonomy frustration, of which only autonomy frustration later translated into higher after‐work rumination and ultimately lower psychological detachment from work. Our findings suggest that needs frustration provides a promising approach to investigate and explain potentially detrimental effects of unwanted help at work on after‐work recovery processes.","PeriodicalId":501682,"journal":{"name":"Stress & Health","volume":"57 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140833126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Anna Alexandrov, Nóra Román, Petra Kovács, Anna Ritz, Mónika Kissné Viszket, Zsuzsa Kaló
{"title":"Posttraumatic stress disorder symptomology as measured by PCL‐5 and its relationships to resilience, hostility and stress among paramedics and social professionals","authors":"Anna Alexandrov, Nóra Román, Petra Kovács, Anna Ritz, Mónika Kissné Viszket, Zsuzsa Kaló","doi":"10.1002/smi.3409","DOIUrl":"https://doi.org/10.1002/smi.3409","url":null,"abstract":"This survey study aimed to contribute to the extensive debate on the dimensionality of the Posttraumatic Stress Disorder Checklist for the DSM‐5 (PCL‐5) questionnaire by examining the psychometric properties and construct validity of its Hungarian version and relying on the inspection of a conceptual network of related variables, that is, perceived stress, hostility, and resilience. Confirmatory factor analysis (CFA), exploratory structural equation modelling (ESEM) and path analysis were applied on data collected from 177 paramedics and 66 professionals from the social field (58.4% male; <jats:italic>M</jats:italic><jats:sub>age</jats:sub> = 43.5 ± 9.96 years). Despite the acceptable fit indices gained with CFA when testing the original four‐factor DSM‐5 model of PCL‐5, strong associations (<jats:italic>r</jats:italic> = 0.69–0.90) between subscales were found. Thus, ESEM was applied and as a result a new, three‐factor version of the DSM‐5 model of PCL‐5 was proposed due to significant crossloadings that was theoretically also supported. The Reexperiencing and Avoidance subscales were merged and named Difficulty with Assimilation of Experience (DAE). In the path analysis only two of the tested associations were not significant using the new factor structure, in which stress fully mediated the relationship between resilience and DAE, and resilience and Hyperarousal. Overall, the hypothesised pathways between variables fit the collected data well. (weighted least squares mean‐and variance‐adjusted <jats:italic>χ</jats:italic>2 = 503.750 (df = 270), comparative fit index = 0.948, Tucker–Lewis index = 0.939, root mean square error of approximation (90% confidence interval) = 0.064 (0.055–0.073), weighted root mean square residual = 1.024). Our analysis of the Hungarian version of PCL‐5 contributes to the testing of a DSM‐5‐based questionnaire measuring posttraumatic stress disorder symptomology.","PeriodicalId":501682,"journal":{"name":"Stress & Health","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140833127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Reagan L. Miller, Lauren B. Shomaker, Mark A. Prince, Shelley Haddock, Addie Rzonca, Jill T. Krause, Toni Zimmerman, Jason M. Lavender, Erica Sibinga, Rachel G. Lucas‐Thompson
{"title":"Momentary effects of life stressors on mindfulness and emotion regulation difficulties among adolescents exposed to chronic stressors","authors":"Reagan L. Miller, Lauren B. Shomaker, Mark A. Prince, Shelley Haddock, Addie Rzonca, Jill T. Krause, Toni Zimmerman, Jason M. Lavender, Erica Sibinga, Rachel G. Lucas‐Thompson","doi":"10.1002/smi.3414","DOIUrl":"https://doi.org/10.1002/smi.3414","url":null,"abstract":"Adolescents faced with chronic stressors (e.g., financial instability, interpersonal violence) are at heightened risk for developing mental health problems, likely due in part to stressors that interfere with effective emotion regulation. Although mindfulness may help to act as a buffer against the deleterious effects of life stressors, a relatively untested assumption is that adolescents can maintain mindfulness during periods of stress. This paper explores this assumption by investigating the real‐time, dynamic relationships among life stressors, mindfulness, and emotion regulation difficulties among adolescents exposed to chronic stressors. Eighty‐one participants who were 10–18 years old (<jats:italic>M</jats:italic> = 14.33; <jats:italic>SD</jats:italic> = 2.20; 56% male; 57% Non‐Hispanic White) completed ecological momentary assessments (EMA) three times a day for 7 days and contributed a total of 1186 EMA reports. Multilevel structural equation modelling revealed that the presence (vs. absence) of stressors was associated with lower momentary mindfulness and greater momentary emotion regulation difficulties concurrently and prospectively. Stressors with greater severity were also concurrently, but not prospectively, associated with lower momentary mindfulness and greater momentary emotion regulation difficulties. Findings highlight that exposure to life stressors may degrade momentary mindfulness and emotion regulation. Given that mindfulness and emotion regulation are closely associated with mental health, these results also demonstrate one way that stressors may contribute to health disparities at the micro‐level. Going forward, it will be important to investigate methods of helping adolescents learn to maintain mindfulness and adaptive emotion regulation in the face of stressful events. This study was preregistered (NCT04927286).","PeriodicalId":501682,"journal":{"name":"Stress & Health","volume":"66 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140833448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}