Objective To explore the relation among physical exercise,depression among female college students and social support,and the multiple mediation effect of three dimensions of social support between physical exercise and depression.Methods A total of 300 female college students were selected and investigated using the physical activity rating scale-3 (PARS-3),self-rating depression scale (SDS) and social support rating scale(SSRS).The multiple mediation effects of the subjective support,objective support and support utilization were tested using the hierarchical regression and the bias-corrected non parametric percent Bootstrap method.Results The overall effect of multiple mediation was significant,accounting for 56％ of the total effect,while the direct effect of physical exercise on depression was not significant.As for the multiple mediation effects,the mediation effect of subjective support and support utilization was significant,while that of the objective support was not.Their mediation effect accounted for 47.3％,36.6％ and 16.1％ of the indirect effect respectively.Conclusion Social support has a mediation effect between physical exercise and depression among female college students,and the subjective support and support utilization are the main mediation factors.

Objective To understand the status and existing problems of psychological health and social support of medical students ,analyze its influencing factors and provide basis for targeted education and management measures .Methods The social support scale(SSRS) ,symptom self-assessment scale (SCL-90) ,the quality of life questionnaire (SF -36)were used as question-naire survey for 120 college students .Results Positive rate of psychological problems in 91 undergraduates was 24 .18% ,obsessive compulsive disorder appeared the most ,phobia appeared the least .Positive rate of psychological problems in 29 English major un-dergraduates was 41 .38% ,the most frequent symptom was forcing symptoms ,followed by human and depressive symptoms .The interpersonal score of English major undergraduates was higher than that of clinical undergraduates ,with a statistically significant difference (P=0 .039) .Mental health between medical and English major students had a statistical difference (P=0 .010) .Objec-tive support scores between medical and English major students had a statistical significance (P=0 .014) .The highest score was the subjective support ,and the lowest scores was the use of social support .Conclusion The mental health of most of the medical un-dergraduates is not optimistic and there exist different psychological problems .At the same time ,the lower level of social support comes along with the higher level of health problems and vice versa .Therefore ,we suggest that society ,schools ,families and relat-ed management departments should further carry out mental health intervention for medical students .

Objective To analyze and discuss the application effect of Fiberoptic bronchoscopic sputum aspiration combined with bronchoalveolar lavage on the treatment of ventilator associated pneumonia. Methods In our hospital from January 2015 to February 201684 cases with ventilator-associated pneumonia were, randomly divided into the observation group and the control group. The two groups were received the same conventional treatment, at this basis, the observation group were given fiber bronchoscope sputum and bronchoalveolar lavage. The effect in the two groups a was compared. Results The mechanical ventilation time, hospitalization expenses, the total effective rate in the observation group were significantly better than those in the control group , the differences were statistically significant (P<0.05). Conclusion On the basis of routine treatment, fiberoptic bronchoscopy and bronchoalveolar lavage are used on the treatment of ventilator-associated pneumonia, which can further improve the treatment effect and save the cost of treatment.

OBJECTIVE:To explore the feasible program of independent financing for essential medicines. METHODS:Based on the comprehensiveness of national essential medicine system and the value chain of while essential medicines,the feasibility of independent financing to supplying,application and payment was analyzed,and finally the feasible program of independent financ-ing for essential medicines was put forward. RESULTS & CONCLUSIONS:Making full use of financial subsidies,individual con-tribution and medical insurance balance fund,with appropriate supplementary financing can establish the compensation fund. The unified compensation fund is used for providing financial support for fixed-point production of scarce essential medicines;compen-sating production enterprises supplying essential medicines;compensating medical institutions equipped with essential drugs;provid-ing“secondary compensation”to patients purchasing essential medicines. Complete system of financing,supplying,application and payment for medicines should be further designed after“medicine separation”.

OBJECTIVE:To research the effect of price change on pharmaceutical enterprises in China to improve the assess-ment of drug pricing. METHODS:Market share,competitive products’price and substitutes of the elasticity of drug price were an-alyzed to receive the effect of price change on pharmaceutical enterprises. RESULTS:The market share of homogeneous drugs for a same disease had positive correlation with price change,that is to say,if raised the price,its market share was on the rise;in terms of the effects on the price of competitive products and substitutes,the drug price change in an enterprise had a positive effect on the price of competitive products and substitutes. CONCLUSIONS:Price change of drugs has effect on market share and the price of competitive products and substitutes. Therefore,according to the price index,the enterprise can predict the market share and the price of competitive products and substitutes to assess the effect of drug quotation on the enterprise itself and external envi-ronment.

Objective:Based on the hospital resource planning(HRP) system, design in delicacy maintenance information management system of medical equipment, aims to solve problems for preventive maintenance, repair decision support, repairing parts management, fault library, practical training, cost analysis, workload statistics and other aspects.Methods: The five issues including establishment of a standardized procedure for solving maintenance, electronic document management, scientific and material support, comprehensive personnel management, cost analysis, statistical and intelligent decision support by the Visual Basic for application programming technology were solved to realize the database interaction. Constructing standardization process of equipment maintenance management and making full use of the stored information can provide guidance for equipment maintenance management activities.Results: The equipment maintenance management and integrated decision analysis, provides a strong reference for all types of decision-making of the hospitals. To realize information sharing among departments make hospital equipments maintenance comply with a standardized and scientific management requirements.Conclusion: It can be widely applied in hospital equipment maintenance management process and is significant to the achievement of scientific management of medical equipment.

Sulfonylureas are one of the major oral drugs for the treatment of type 2 diabetes mellitus.Studies in recent years have shown that such drugs have the effect of independent of reducing blood sugar on ischemic stroke.This effect is mainly associated with the combination of sulfonylurea receptor 1 (SUR1) to regulate of ATP-sensitive non-selective cation channels.

Objective To study the clinical characteristics and effects of surgical treatment of children with thalamic tumors.Methods The clinical data of 22 cases were retrospectively studied and followed-up 6 months to 9 years.Results There were 13 boys and 9 girls,their ages ranging from 3 to 13 years.The average duration of symptoms before diagnosis about 2 months.Headache and papilledem were the most symptoms and signs,respectively.Most children′s thalamic tumors were low grade tumors with clear verge.In this group,good results were obtained that total remove 9 cases,subtotal remove 8 cases,partial remove 3 cases,biopsy 2 cases and no surgical death.Conclusions Clinical character of children thalamic tumors is distinct and good surgical results in the nearly future.The long results are determined by type of pathology.

[Objective]To evaluate the reliability of proximal femoral nail anti-rotation(PFNA) in treatment of intertrochanteric fracture using K-wire apex distance(KAD) intraoperatively to control tip apex distance(TAD).[Method]From January 2007 to January 2009,44 cases of intertrochanteric fractures were treated by closed reduction internal fixation with PFNA.Intra-operative KAD and post-operative TAD were measured and analyzed for their correlation.[Result]Follow-up was given to 42 patients for 6-18 months(averaged,10 months).Bone union was achieved after 11-23 weeks(averaged,13 weeks).Intra-operative KAD were 13-31 mm,with an average of 21.75 mm.Post-operative TAD were 18-35 mm,with an average of 24.61 mm.Recurrence of cerebral infarction was found in 1 case.No infection,deep vein thrombosis,intramedullary nailing rupture,screw broken or femoral fracture was found.[Conclusion]With the help of intra-operative fluoroscopy,the distance from the end of Kirschner's wire to joint surface(KAD) plays an important role in controlling TAD,and it could prevent relative complications such as helical blade cutting-out of femoral head.