ObjectiveTo explore the influence of future time insight on academic procrastination and the role of self-control among secondary vocational students， and to provide references for mental health education of them. MethodsA total of 1 419 secondary vocational students from 2 secondary vocational schools in Huangshan City Anhui Province were selected as the research objects in June 2022. The future time insight questionnaire for adolescents， the academic procrastination questionnaire for middle school students and the Self-Control Scale （SCS） were used to assess the future time insight， academic procrastination and self-control ability of secondary vocational students. The mediating effect test of PROCESS was used to analyze the mediating role of self-control between future time insight and academic procrastination. Results①There was a positive correlation between the future time insight questionnaire for adolescents score， the SCS score and the academic procrastination questionnaire of middle school students score （r=0.558， 0.470， P<0.01）. ②Both future time insight and self-control could positively predict academic procrastination （β=0.463， 0.218， P<0.01）， while future time insight could positively predict self-control （β=0.348， P<0.01）. ③Self-control partially mediated the relationship between future time insight and academic procrastination ［indirect effect=0.076 （95% CI： 0.052~0.101， P<0.01）， and the indirect effect accounted for 16.41% of the total effect］. ConclusionThe future time insight of secondary vocational students can affect academic procrastination directly or indirectly through self-control， which partially mediates the relationship between future time insight and academic procrastination.

Objective To investigate the CT features of early infection stage of thoracic and pulmonary paragonimiasis. Methods Medical records of 56 patients with thoracic and pulmonary paragonimiasis from January 2010 to June 2017 were collected, and the patients were diagnosed and treated at Yongjia County People's Hospital, and the results of laboratory examination and CT imaging features were analyzed retrospectively. Results The absolute value of eosinophils in peripheral blood of 56 patients was (5.61 ± 3.18) × 109/L, and the percentage of eosinophils was (35.90 ± 19.16)％, all of which increased to varying degrees. Forty-two patients had different degrees of pleural effusion and 52 cases with lung lesions. Lung lesions demonstrated one or several kinds of foci at the same time, randomly distributed in the lung field, mostly located in the sub-pleural lung tissue. There were 12 cases with pulmonary ground glass shadow, 4 cases with peribronchitis, 31 cases with pulmonary invasive lesions and 28 cases with pulmonary nodular/strip shadow. The size of most nodules were 0.5 - 1.0 cm, accompanied with halo sign. Conclusions The CT features of early infection stage of thoracic and pulmonary paragonimiasis are diverse. The size of 0.5 - 1.0 cm lung nodules with halo sign has certain characteristics in the diagnosis of paragonimiasis. Peribronchitis, infiltrative lesions, pleural effusion and increased peripheral blood eosinophil percentage can suggest diagnosis.

ObjectiveTo explore the current status of academic stress， self-control and mobile game addiction among middle school students， and to test the mediating role of self-control. MethodsA total of 750 middle school students were enrolled by convenient sampling method， and were assessed using Academic Pressure Questionnaire， Self-Control Scale （SCS） and Mobile Game Addiction Scale. Thereafter， the mediating effect of self-control on the association between academic stress and mobile game addiction was analyzed with PROCESS mediating effect test. ResultsA total of 682 middle school students completed the survey. The scores of Academic Pressure Questionnaire， SCS and Mobile Game Addiction Scale of the selected middle school students were （58.56±11.34）， （38.42±6.94） and （34.23±12.14）， respectively. The total score and each dimension score of Academic Pressure Questionnaire were positively correlated with the total score of Mobile Game Addiction Scale （r=0.189~0.259， P<0.01）， and negatively correlated with the SCS score （r=-0.348~-0.196， P<0.01）. The total score and each dimension score of Mobile Game Addiction Scale were negatively correlated with SCS score （r=-0.336~-0.252， P<0.01）. Academic stress could predict self-control negatively （β=-0.205， t=-9.288， P<0.01） and predict mobile game addiction positively （β=0.281， t=7.084， P<0.01）. Meantime， self-control could predict mobile game addiction negatively （β=-0.480， t=-7.238， P<0.01）. With self-control as a mediator variable， academic stress still significantly predicted the mobile game addiction （β=0.182， t=4.492， P<0.01）. ConclusionThe academic pressure， self-control and mobile game addiction of middle school students are all at the lower middle level， moreover， self-control has a partial mediating effect between academic pressure and mobile game addiction.

ObjectiveTo discuss the relationship between general self-efficacy and mobile game addiction among middle school students， and to analyse the mediating role of time management disposition. MethodsFrom November 2020 to February 2021， a sample of 667 students were recruited from three middle schools in Jiangxi and Sichuan provinces using cluster sampling method. All selected students were assessed using General Self-Efficacy Scale （GSES）， Mobile Game Addiction Scale and Adolescence Time Management Disposition Inventory （ATMD）. Further， Bootstrap method was used to test the mediating effect. Results①The total score of Mobile Game Addiction Scale was negatively correlated with the total scores of GSES and ATMD （r=-0.122， -0.333， P<0.01）. The total score of ATMD was positively correlated with the total score of GSES （r=0.536， P<0.01）. ②General self-efficacy and time management disposition could predict the mobile game addiction negatively （β=-0.333， -0.122， P<0.01）， and general self-efficacy could predict the time management disposition positively （β=0.536， P<0.01）. ③Time management disposition played a full mediating role between general self-efficacy and mobile game addiction， with a mediating effect size of -0.159 （95% CI： -0.213~-0.112， P<0.01）， accounting for 70.38% of the total effect. ConclusionGeneral self-efficacy indirectly affects mobile game addiction via time management disposition.