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ObjectiveTo explore the correlation of sleep quality with negative life events and coping styles in adolescents based on structural equation modeling， and to provide references for improving the adolescents' sleep quality. MethodsFrom December 2021 to May 2022， a total of 767 junior middle school students from three schools in Chongqing were enrolled， and assessed using Pittsburgh Sleep Quality Index （PSQI）， Adolescent Self-rating Life Events Checklist （ASLEC） and Simplified Coping Style Questionnaire （SCSQ）. Then the structural equation model was applied to discuss the correlation of sleep quality with negative life events and coping styles in adolescents. ResultsA total of 222 adolescents （28.94%） were found to have sleep disorders. PSQI score was positively correlated with ASLEC score and negative coping dimension score of SCSQ （r=0.612， 0.590， P<0.01）， and negatively correlated with positive coping dimension score of SCSQ （r=-0.435， P<0.01）. The structural equation model of the relationship between negative life events， coping styles and sleep quality denoted that negative life events exhibited both direct and indirect positive effects on sleep quality （β=0.448， 0.322， P<0.05）， positive coping style had direct negative effects on sleep quality （β=-0.368， P<0.05）， and negative coping style had direct positive effects on sleep quality （β=0.442， P<0.05）. ConclusionNegative life events and negative coping style cause adverse effects on adolescents' sleep quality， while positive coping style exerts positive effects on adolescents' sleep quality.
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The course evaluation scheme oriented ability cultivation was established. The for-mative evaluation indexes which were practiced in information retrieval course were divided into two indicators:classroom learning and performance including five secondary indexes(classroom discipline, classroom learning, homework, questions and answer questions online, personal essay and group dis-cussion reports) with the and seven observation points(pre-class preparation, teacher-student interac-tions, classroom discussions and classroom reports, experimental class performance, homework com-pletion, the utilization of network teaching platform, personal essay and group discussion), and these were practiced in the teaching of “information retrieval” curriculum, the usual results was composed with the usual academic performance and utilization of the network teaching platform. Finally, the practice results were discussed and summarized in order to cultivate the ability of the students who major in information management and to improve the teaching quality.
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<p><b>OBJECTIVE</b>To identify the mayven-interacting proteins and study the effect of mayven on multiple sclerosis pathogenesis.</p><p><b>METHODS</b>The full length and four different fragments of mayven gene were amplified by polymerase chain reaction (PCR) with specific primers and were cloned into the yeast expression vector pDBLeu. Then, the recombinant plasmids were transformed into MAV203 yeast strain. The autonomous activation of their expression products was detected.</p><p><b>RESULTS</b>The yeast expression vectors of mayven, which include a full-length and four different fragments, were constructed successfully. Full length P1, fragments P3 and P4 have no effect on the expression of HIS3 and LacZ gene, but fragments P7 and P8 do. The C-terminal of Mayven gene may contain a transcription activation domain.</p><p><b>CONCLUSION</b>Full length P1, fragments P3 and P4 of the mayven gene can be used to screen the mayven-interacting proteins, but whether Mayven has transcriptional activation activity need to be studied.</p>
Subject(s)
Microfilament Proteins , Genetics , Models, Genetic , Multiple Sclerosis , Genetics , Nerve Tissue Proteins , Genetics , Polymerase Chain Reaction , Two-Hybrid System TechniquesABSTRACT
Objective To investigate occupational stressandits relation with personality characteristics for offering basis to intervene the occupational stress. Methods Atestofoc cupational stressand personality characteristics was carried out with revised occupationalstress inventory (OSIR) and the sixteen personadity factor questionnaire (16PF) for 743 nurses. Results The scores of personal strain questionnaire (92.14 ?0.69) of OSIR for nurses are higher than the common example (84.78?18.16). and the scores of the factors in the personal resources questionnaire(123.98?0.68)are obviously lower than the common example. (130.02? 17.39) Personality characteristics are correlated with occupational stress. Personality characteristics such as vigilance,apprehension and tensiondisplaypositive correlation with personal strain andnegative correlation with personal resources. Personality characteristics such aswarmth,social boldness,perfectionism,ruleconsciousness,emotional stability and sensitivitydisplay negative correlation with personal strainandpositive correlation to personal resources. Conclusion The occupational stress of nurses is related to personality characteristics.
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In order to enrich postgraduates’ knowledge of medical literature retrieval,consolidate classroom teaching,and strengthen the communication between the students and the teachers.this paper put forward a new ideas about postgraduate medical literature retrieval teaching,discussed its role,and applied it to practical teaching.