Four bdellovibrio bacteriovorus of Rhizobium japonicum were isolated in our country from field soils cropped to soybeans. The culture character, morphology, host range and the other biological properties of these bdellovibrio bacteriovorus of R. japonicum had a wide host range and a strong ability that lyse R. japonicum in field soils, and were one of main biological factors that lower the yield of soybeans.

Objective:To discuss the management and maintenance of medical equipment in hospital, the department of biomedical and engineering should develop a reasonable management plan to meet the needs of using safety management of medical equipment based on the risk analysis.Methods: Make up a strategy based on the analysis of application risk according to the clinical function, physical risk, fault avoidable probability and the adverse events recorded, and conduct the preventative maintenance and safety performance inspection. Results: The focus of clinical engineering professionals change from passive acceptance to repair equipment to preventive equipment maintenance, and carry out safety performance inspection to reduce the risk caused by the failure of equipment which is harmful to the patients.Conclusion: The clinical engineering professionals need to pay attention to the application risk and improve the management strategy while they improve the technical level.

Objective To investigate the interaction between glucose transporter 4(GLUT4) and the(14-3-3) proteins in rat adipocytes.Methods Isolated primary adipocytes were obtained from the epididymal fat pads of male Sprague-Dawley rats by collagenase Ⅰ digestion.Total cell extract as well as three fractions,referred to as Fraction T,H and L,were obtained from rat adipocytes using hypotonic lysis and glycerol gradient velocity sedimentation.Immunoadsorption of GLUT4 with Trisacryl beads cross-linked with 1F8,a specific monoclonal antibody to GLUT4,was conducted in total cell extract and the three fractions and followed by elution and Western blot analysis.Co-immunoprecipitation of(14-3-3) proteins and GLUT4 was demonstrated by detecting(14-3-3) in the eluates.Results(14-3-3) proteins were co-immunoprecipitated with GLUT4 either in the total adipocyte extract, or in each of the three fractions mentioned above.The co-precipitated(14-3-3)s were identified as two bands in Western blot analysis,the molecular weights of which were approximately 29kDa and 60kDa respectively,indicating that they might be in the state of homo-or hetero-dimers while interacting with GLUT4.Conclusion There is a physiological interaction between(143-3) proteins and GLUT4 in rat adipocyte.

To observe the patients with type 2 diabetes who were injected premixed insulin analogues after short time continuous subcutaneous insulin infusion( CSII ) treatment.It was found that the patients needed premixed insulin analogue injection 2 times daily when the dosage of CSII was less than 45 U/d,and 3 times daily when the dosage was greater than 45 U/d.The relationship of dosages between premixed insulin analogue treatment ( Y ) and CSII treatment(X) was calculated by following equations:2 times daily premixed insulin analogue treatment:Y =13.093 +0.395X,3 times daily premixed insulin analogue treatment:Y =23.114+0.405X.

Objective: To analysis the key factors of quality control for high frequency surgical unit to provide reference to ensure accurate and standard. Methods:To analysis the details of quality control on protective earth impendence, resistor-capacitor network, test error on definition, structure, magnitude and other aspects. Results:To master the key factors of quality control is important for the promotion of operability of the quality control work and decrease the using risk, and then to improve the quality of medical services ensure the safety of patients and medical staff. Conclusion: To analysis the each key factor is important significance to the quality control for high frequency surgical unit.

Objective:To master the methods of reducing electromagnetic interference by RFID system, and presents the feasible technical advices for hospital’s implementation to ensure the safety of applications of electronic medical devices. Methods:According to analysis the causes of electromagnetic interference by RFID system, the methods of suppressing the electromagnetic interference are put forward for practical application. Results:The clinical engineers could refer to the methods of suppressing the electromagnetic interference and then conduct and use the RFID system, taking account of the management efficiency and the safety of applications of the medical devices. Conclusion:To determine the proper strategy for RFID system application in medical management of hospital may reduce the electromagnetic interference to the electrical devices of hospital and ensure its safety of application.

Purpose:To study the effectiveness of surgical treatment of 15 tracheoesophageal fistulas secondary to carcinoma of esophagus a fter radiotherapy. Methods:clinical records of 15 tracheoesophageal fistulas secon dary to carcinoma of esophagus after radiotherapy were analysed.several surgical techniques were analyged for different cases. Results:In all 15 cases, only two of them died,the postoperativ e death rate is 15.38%, and the total complication rate is 30.76%.1-year survi val is 50%, and the median-life span is 12 months. Conclusions:Approriate surgical treatment together with active preoperative preparation, elaborative postoperative nursing care, can improve t he quality of life, reduce postoperative complication rate, and prolong survival .

Pollution and control of microcystins released during the toxic bloom was reviewed in the present paper. As a risk factor in safety assessment, microcystins aroused broad attention. It was a topic of general interest that how to control microcystins reproduction and how to enhance the degradation of microcystins in the water treatment procedure. Based on the state of China, it was considered that a combined method of biological, physical and chemical treatment should be the best way to control microcystins pollution in drinking water.

Objective To know the effects of air pollution on the activity of aryl hydrocarbon hydroxylase (AHH) in the placenta tissue of women in Taiyuan, Shanxi Province. Methods The decrement of BaP after the metabolic procedure was used as the indicator of AHH activity. 151 lying-in women were selected and the AHH activity in the placenta was determined by fluorescence spectrophotometer, the precooling EDTA was added in the determination to inactivate AHH and to stop the reaction completely in order to get more stable result. Results The AHH activity in the placenta tissue increased as the atmospheric particle concentration and the BaP concentration in the particles increased. Conclusion The air pollution may induce the AHH activity increase in the placenta tissue of pregnant women in Taiyuan. The AHH activity can be used as the biological monitoring indicator in the PAHs polluted areas.