This article pointed out the purposes and significances of establishing a standardized clinical simulated education system and introduced the way adopted by general hospital of Tianjin medical university based on the status and problems of practical ability cultivation for students in clinical simulated education.Meanwhile,teaching methods were improved timely and teaching contents were replenished.

How to construct the human social science in military medical universities is a new task in the process of medical education development.This article explores the relevant problems from both theory and practice.

Objective To discuss some expectation on reform of classroom teaching method for eight-year program medical education, in order to provide a basis for the evaluation and reform of classroom teaching method. Methods Investigation that mainly included expectation on reform of classroom teaching method, classroom teaching method of most expected application, and ex-pected value of classroom teaching method was investigated and analyzed with self-made question-naire, to total 78 medical students (22 of Grade 2008, 20 of Grade 2009, 20 of Grade 2010, 16 of Grade 2011) of eight-year program who had completed the stage before medical education in the uni-versity, and related 32 teachers. Software of SPSS 20.0 was used to make statistical analysis. Results In the survey, 55.8% students and 78.1% teachers hoped to reform the current classroom teaching methods (χ2=4.782,P=0.029). 61%students and 90.6% teachers expected comprehensive application of diverse method(χ2=15.464,P=0.017), including instruction combined with writing on blackboard, teaching by multimedia, PBL, inversion-type class, independent learning, a lot of questions for exami-nation, and so on. The value expectation (>60%) of classroom teaching method was multivariate, in-cluding to stimulate students' interest in learning, to cultivate ability of finding and solving problems, conducive to understanding of knowledge and memory, conducive to comprehension and memory of knowledge, conducive to cultivation of learning method, able to improve ability of creativity and criti-cal thinking, conducive to strengthening interaction and communication of teachers and students, to improve the subject consciousness of student in classroom, helpful to cultivate the spirit of teamwork, to improve the efficiency of teaching, and able to make full use of information technology. Conclusions For the diversified value demand and the highly expectation on reform of current classroom teaching method, more attention should be paid to evaluation and guidance on reform of classroom teaching method for eight-year program medical education.

BACKGROUND: The conical telescopic crown denture has a better long-term effect on dentition defects of few remaining teeth than the traditional removable denture. However, there are few studies to analyze the application of these two kinds of repair methods using the finite element method. OBJECTIVE: To compare the stress distribution of the isolated abutment tooth repaired using the conical telescopic crown denture and traditional removable denture. METHODS: Two-dimensional images of the mandible and dentition in healthy adults were scanned by CT. Three-dimensional finite element models of conical telescopic crown denture and traditional removable denture were established in the mandible only with the bilateral canines. Under the same vertical and oblique loadings, the maximum equivalent stress of the abutment, periodontal membrane or edentulous alveolar ridge was compared between two repair methods. RESULTS AND CONCLUSION: Under the vertical and oblique loadings, the total stress of abutment and periodontal membrane in the traditional removable denture was higher than that in the conical telescopic crown denture and the stress in the corresponding ring was concentrated obviously; the total stress of edentulous alveolar ridge in the conical telescopic crown denture was slightly larger than that in the traditional removable denture, but the stress was wel -distributed and concentrated in a smal area. Under the oblique loading, the total stress of abutment, periodontal membrane and edentulous alveolar ridge was higher than that under the vertical loading in these two dentures, and the stress was concentrated in the periodontal membrane of lingual neck, but the total stress in the traditional removable denture was larger, with a wider concentration range. These findings indicate that the stress on the supporting tissue of conical telescopic crown denture is more evenly distributed within a smal er range than that of traditional removable denture, and the former is more fit for the health of abutment, periodontal tissues and edentulous alveolar ridge.

BACKGROUND: Hydroxyapatite/β-tricalcium phosphate biphasic ceramic bone has good cel compatibility, but its mechanical properties are poor. OBJECTIVE: To construct chitosan/ or calcium alginate/biphasic ceramic bone scaffolds and to detect their mechanical properties and cytocompatibility. METHODS: Different concentrations of chitosan (2%, 4%, 7%, 10%) or calcium alginate (3%, 4%, 5%, 7%) were mixed with biphasic ceramic bone to prepare chitosan/biphasic ceramic bone scaffold and calcium alginate/biphasic ceramic bone scaffold. Their morphology and structure, coagulation time, anti-dissolution properties, shear force, compressive strength and cel compatibility were detected. RESULTS AND CONCLUSION: (1) Coagulation time: with the concentration increase, the initial and final setting time of these two kinds of composite scaffolds were prolonged to some extent. (2) Scanning electron microscopy: these two kinds of composite scaffolds showed porous microstructures with different pore sizes. (3) Anti-dissolution properties: the calcium alginate/biphasic ceramic bone scaffold (3%, 4%, 5%, 7%) and chitosan/biphasic ceramic bone scaffold (7%, 10%) had good anti-dissolution properties in the liquid. (4) Mechanical strength: with the concentration increase, the shear force and compressive strength of the calcium alginate/biphasic ceramic bone scaffold were reduced. (5) Cel compatibility: the cytotoxicity of chitosan/ or calcium alginate/biphasic ceramic bone scaffolds was graded as 0-1 or 2-3, respectively. These results show that the chitosan/biphasic ceramic bone scaffold has better mechanical properties and cel compatibility than the calcium alginate/biphasic ceramic bone scaffold.

Objective · To design and synthesize a series of benzenesulfonamide derivatives, test their inhibitory activity to CDK2-cyclinA2 kinase, and investigate the structure-activity relationship. Methods · Virtual screening was executed via computer-aided drug design according to the ATP binding site in CDK2-cyclinA2 protein crystal. A series of benzenesulfonamide derivatives were designed and synthesized on the basis of the interaction modes between the lead compound and the CDK2-cyclinA2. The biological evaluation of compounds was made through the CDK2-cyclinA2 in-vitro kinase activity detection system. Results · Twenty-nine new benzenesulfonamide compounds were prepared, and their inhibitory activity to CDK2-cyclinA2 was elicited. WZ-026 had the highest inhibitory parameter, which half maximal inhibitory concentration (IC50) was 3.81 μmol/L. Conclusion · By multipurpose utilization of virtual screening, chemical synthesis, and biological activity test, a benzenesulfonamide compound WZ-026 was found, which has great inhibitory activity towards CDK2-cyclinA2. Preliminary structure-activity relationship of compounds was obtained.

The purpose of this study is to investigate the basic situation of self-regulated learning among clinical medical undergraduates in the stage of professional courses and construct a structural model suitable for them to carry out self-regulated learning . Zimmerman's self-regulated learning concept framework was determined as the theoretical basis of this study. A questionnaire survey was performed to identify five main dimensions affecting self-regulated learning including expression of learning intention, self-efficacy, adjustment of learning behavior, management of curriculum strategies, and adaption of learning environment, and then, Amos 24.0 software was used to construct the structural model and draw the conclusion that self-regulated learning in this group centers on the regulation of learning behavior, with learning intention and self-efficacy as sub-centers.

Objective:To investigate differentially expressed genes(DEGs)for neuropathic pain between sciatica and healthy controls. Method:The microarray dataset GSE150408 were downloaded from gene expression database(gene expression omnibus database,GEO).The DEGs were screened using the limma V3.42.0(linear models for microarray da-ta)package of the R software program(version 3.5.0).GEO terms and Kyoto encyclopedia of genes and ge-nomes(KEGG)pathway enrichment analysis of DEGs were automatically completed and visualized by the clus-terProiler V3.14.0.STRING was searched to identify and predict interactions between genes or proteins,to con-struct the protein to protein interaction. Result:A total of 424 DEGs were screened,including 233 up-regulated genes and 191 down-regulated genes.The result of GO enrichment indicated that for biological process,DEGs were significantly enriched in de-fense response,regulation of immune system process,cell activation,leukocyte activation.Regarding cell com-ponents,DEGs were significantly enriched in vesicles,secretory granules,tertiary granule.For molecular func-tion,DEGs were significantly enriched in immune receptor activation,complement receptor activity and MAP kinase phosphatase activity.The result of KEGG pathway-enrichment indicated that DEGs were mainly enriched in transcriptional misregulation in cancer.Moreover,the GSEA analysis indicated that the most significant en-riched gene sets included endocytosis,Epstein-Barr virus infection.PPI analysis were performed to explore the potential function of the DEGs.It showed that the degree of FCGR1A was the highest in up-regulated proteins and the highest in down-regulated proteins.These two proteins were the key nodes. Conclusion:It showed an inflammatory and immune characteristic in peripheral blood for neuropathic pain.AZU1,BPI,FCGR1A and SPTBN2 were the key genes in neuropathic pain.

The dual-core system is an innovative concept in the development of narrative therapy in China,that is,the client has the inner state of the original model and the developmental model at the same time.This paper constructs the concept of a dual-core system,which relocates the relationship between problems and resources,em-phasizes the experience of problems,and assists counselors in locating the"nearest development area"of clients.It makes the client's problems and healing both opposed and unified,forming a dynamic,binary self-identity system that ultimately empowers the client's life.

To explore how to create and optimize a promotion index system of medical quality evaluation, this article focuses on the hospital visiting process from patients, using analyzing collected those index system from couples of Grade Ⅲ hospitals in Beijing, and combining the results of literal study, field study and specialist consult, according to the different situation of general hospitals and specially hospitals, with the spirit of "maintaining the patients benefits, safeguarding the patients safety,and enhancing the medical quality", introduces the framework of the promotion index system, the rules to select the indicator, and so on, and discusses several problerns related to creating the index system.