Objective To establish a complete heat transfer boundary condition model in a cockpit including the inner wall heat transfer boundary condition and the air supply heat transfer boundary condition of the air distribution system. Methods The temperature field in the cockpit was carried out unmerical caculation with above model and the traditional method which was assumed uniform heat flux through walls and flow flux out of each air supply hole individually.An experiment was carried out to prove the caculation accuracy of both methods. Results The comparison between calculation and experiment results shows that the temperature field calculation accuracy of this model was much higher than traditional method’s.This model could indicate the unevenness and the asymmetry of the heat transfer through walls and the air temperature out of air supply holes of air distribution system. Conclusion This model is reasonable and has a good engineering application value.

Objective To investigate the change and its mechanism of serum S100? protein and C-reactive protein (CRP) content in patients with acute cerebral infarction(ACI).Methods The content of serum S100? and CRP in 54 patients with ACI and 21 normal control were measured. The changes of S100? and CRP were compared with patients of different pathogenetic condition and infarction sige. The correlation analysis between S100? and CRP was also made.Results The level of serum S100? and CRP in patients with ACI increased significantly compared with control group (all P

Objective To explore alterations of cognitive function and P300 in depressed patients with Parkinson's disease(PD).Methods Zung's self-rating depression scale(SDS) and Hamilton depression rating scale(HAMD) were used to divide the 67 patients with PD into two groups, PD with depression and PD without depression. The cognitive function and P300 were measured, further comparing and the correlation analysis were made.Results The score of Mini-mental state examination (MMSE) in the PD patients was in normal extent,but significantly lower than that in the normal controls(P

Objective To improve the diagnostic accurate rate by studying best values of chest posterior-anterior digital medical images in soft-copy reading. Methods 100 normal adults’ chest posterior-anterior digital medical images in recent 10 days in our hospital were randomly chosen. Five specialists of our department were invited to see these images by soft-copy reading and the best WW/WL values of different parts of the chest they selected were recorded. All the data were analyzed in statistics and the best WW/WL was got. Results The best WW/WL values of soft tissues of chest wall were 2 083/4 840,ribs 2 667/4 908,lung fiber 2 067/4 960,hilum of lung 1 848/5 130,heart and large vessels 2 206/5 438,mediastinum and diaphragm 2 180/5 530,thoracic vertebrae 1 471/5 801,ribs that covered by heart and diaphragm1 428/5 975. Conclusion Different parts in chest poster -anterior digital medical images need special WW/WL in soft-copy reading for better diagnosis of images.

To provide an evidence for clinical application, the distribution and radioimmunoimaging of 131I-labeled angiostatin in tumor-bearing mice were studied. Angiostatin was labeled with 131 I by the conventional chloramines T (Ch-T) method and injected into C-57 mice bearing Lewis lung cancer. The biodistribution of 131 I-angiostatin and whole body ECT imaging were studied at various intervals after injection. The average percentage of ID/g was 12. 48, 18. 56 and 23. 17 for tumor and 7. 04 ,5. 47 and 1. 73 for liver at 48, 96, 144 hours postinjection, respectively. The T/NT ratios were 1. 77, 3. 39 and 13. 39 for liver at 48 ,96 and 144 hours postinjection, respectively. The tumor was showed clearly at 96 hours after injection . The quality of tumor imaging was relevant to the T/NT ratio . The results demonstrated that the 131I-angiostatin binds specifically to the receptor on endothelial cells in the tumor and may also possess the capability of locating lung cancer tissue.

Objective:To detect serum antibody to CJ in GBS patients with LPS purified from CJ strains (CJ LPS) and total CJ constituents (CJ T) as antigens and to deduce whether LPS is surely the epitope of CJ in the induction of CJ antibodies from the difference between the positive rates of both the two assays with CJ LPS and CJ T and from the concordance rates of the positive cases Methods:Sera from 81 GBS patients, 34 patients with other neurological diseases (OND) and 63 normal controls (NC) were tested with CJ LPS and CJ T by indirect ELISA method CJ LPS was purified by phenol water extraction method from 15 CJ strains of various Penner serotypes, including those isolated from GBS patients CJ T was made by collecting the heat stable constituents of CJ Results:The positively infective rate of GBS were 51 9% by CJ LPS and 56 8% by CJ T antigens There is significant difference between GBS and NC in both assays, as well as OND There is no difference between the positively infective rate of GBS patients detected with the two sets of antigens and between concordance rates of the positive cases Conclusion:High incidence of GBS following CJ infection was confirmed once more, and LPS is probably one of the epitopes of CJ in the induction of CJ antibodies

Objective To evaluate the protective effect of Ulinastatin on pathological changes of lung induced by paraquat (PQ) intoxication in rats. Method Sixty female SD rats were randomly and equally divided into three groups ( n = 20 in each group). On the experimental day, the rats of group A (control group) received 1 mL of saline intragastrically; the rats of group B (PQ, group) received 1 mL of PQ intragastrically (40 mg/kg diluted in saline) and then treated with saline injected intraperitoneally once a day, and the rats of group Group C (Ulinastatin treatment group) received 1 mL of PQ intragastrically (40 mg/kg,diluted in saline) and then treated with 1 mL of Ulinastatin ( 120 000 IU/kg) intraperitoneally twice a day. The rats ( n = 5 in each subgroup) were sacrificed on the 7th, 14th, 21st, and 28th day for observing the histopathological changes of the lung stained with hematoxylin-eosin stain (HE) and Masson's trichrome stain. Data were semi-quantitatively analyzed by SPSS10.0 software. Hierarchical data were analyzed by rank and inspection. The data that have significance analyzed by comparison test (Bonferroni methods). Results Paraquat intoxication resulted in significant alveolitis and lung fibrosis. Ulinastatin treatment alleviated lung edema, hemorrhage, inflammatory cell infiltration, and fiber aggregation. Conclusions These data demonstrated the Ulinastatin exerted protective effects against PQ-induced lung injury. Ulinastatin could to be used in clinical management for PQ intoxication.

BACKGROUND:Methylprednisolone has been used for the treatment of acute spinal cord injury but there is a dispute about the efficacy and safety of methylprednisolon. OBJECTIVE:To evaluate the efficacy and safety of methylprednisolon based on system review. METHODS:PubMed database, EMBASE database, Cochrane Library, ISI Web of knowledge, CBM database, VIP database, CNKI database and Wanfang database were searched from their start year up to December 2014 for relevant randomized clinical trials on the treatment of acute spinal cord injury with methylprednisolon. RESULTS AND CONCLUSION:Twelve randomized clinical trials with 642 acute spinal cord injury patients were included. The results of the Meta analysis showed: methylprednisolone+conventional therapy was better to improve American Spinal Injury Association (ASIA) motor function score, ASIA touch sensation score, ASIA pinprick sensation score and the overal Frankel score than the conventional therapy alone (control group) with statistical significance (P < 0.05). In the aspect of safety, the methylprednisolone group had higher death ratio, digestive tract reaction ratio and urinary infection ratio than the control group but with no statistical significance. The gastrointestinal bleeding ratio and lung infection ratio was significantly higher in the methylprednisolone group than the control group (P < 0.05). We conclude that methylprednisolone has protective effect on acute spinal cord injury, but the main side effects are gastrointestinal bleeding and lung infection. There is a need for high-quality randomized controled trials to prove the efficiency and safety of methylprednisolone.

Objective To discuss the treatment method and prognosis of posterior hip dislocation combined with femoral fractures. Methods Twenty nine patients who had been diagnosed as cases of posterior hip dislocation combined with femoral head fracture were reviewed, with their type of fracture, timing of treatment and method of treatment analyzed. Twenty seven (93.1%) of the 29 cases were followed up from 1987 to 2002 for an average period of seven years. Their prognosis was evaluated according to the x ray radiography and the function of hip joints. Results According to Pipkin IV classification, 13 cases were Pipkin Ⅰ(44.8%), 9 cases Pipkin Ⅱ(31%), 3 cases Pipkin Ⅲ(10%), and 4 cases Pipkin Ⅳ(14.2%). In type I, 9 cases were rated as excellent (33.3%), 2 good (7.4%), 1 fair (3.7%) and 0 poor (0%) by Harris hip score. In typeⅡ, 0 case was rated as excellent (0%), 2 cases good (7.4%), 4 fair (14.9%) and 2 poor (7.4%). In type Ⅲ, 1 case was rated as excellent, 0 good (0%), 1 fair (3.7%) and 1 poor (3.7%). In type Ⅳ, 0 case was rated as excellent (0%), 2 good (7.4%), 1 fair (3.7%) and 1 poor (3.7%). In all the 29 cases, those which needed total hip arthroplasty (THA) were four (13.7%). Conclusions The choice of treatment method should be determined by the mechanism of injury and the type of fracture. The factors ensuring a satisfactory prognosis are: (1) The age of the patients should be younger than 40 years. (2) Since a timely reduction can prevent the onset of avascular necrosis of femoral head, it should be finished within 12 hours after the injury, and the fixation should be done within 10 days. (3) In all types, early reduction of hip dislocation, early stabilization, anatomic reduction of the fracture should be achieved. (4) The prevention of possible complications should be taken into serious consideration.

To investigate the effects of gensenoside Rg1 on expressions of phosphorylated tau protein (P-tau), protein phosphatase 2A (PP2A) and tau protein in Alzheimer's disease-like tau phosphorylation rat brain slices, and to explore the mechanisms of gensenoside Rg1 in inhibiting tau phosphorylation.