To survey the time management disposition of the medical postgraduates,the Time Management Disposition Scale were used on 774 medical postgraduates for investigation in 2009. The difference of medical postgraduate from the countryside,towns and cities on time management disposition is not significant ( P＞0.05 ) ; Students of different gender have significant difference ( P＜0.05 ). The female postgraduates cultivation on time management disposition needs to be strengthened.

Objective To explore the clinical and laboratory characteristics of langerhans cell histiocytosis (LCH) in children, so as to improve diagnosis level and decrease misdiagnosis rate.Methods Twenty-five cases of LCH from Jan.1996 to Feb.2006 were analyzed by retrospective study. The clinical data were collected and abstracted for information regarding clinical symptom, physical sign, laboratory examination, imaging,pathology,diagnosis and treatment.Results Some laboratory findings in hemogram, bone marrow examination and chest X-ray were non-specific.The X-ray characteristic of skeleton was osteolysis. Computerized tomography and magnetic resonance imaging were important in defining the extent of lesion in fundus cranii and sella.Seven cases were examined for anti-Epstein-Barr virus(EBV) IgM, 3 cases were positive;5 and 3 cases out of 10 cases showed humoral and cellular immunity abnormality,respectively. The misdiagnosis rate was 52%,1 case had been misdiagnosed for 7 years. Chemotherapy was effective in the future.Conclusions The clinical manifestations of LCH varies widely, leading to high rate of misdiagnosis.The etiology of LCH is unclear,and some of our patients show the evidence of EBV infection or immunity abnormality. Definitive diagnosis of LCH is based on pathology. Ultrastructure and immunophenotype should be done to improve diagnosis level.

Objective To systematically study solvatomorphism of indomethacin and provide a scientific basis for the quality control of the solvated impurities in this drug. Methods By changing the recrystallization solvent, solvent volume, recrystallization temperature, time and pressure, nine solvates and four non-solvated forms were discovered and prepared. The differential scanning calorimetry (DSC), thermogravimetric analysis ( TGA), X-ray powder diffraction ( PXRD) and infrared spectrometry (IR) were introduced for characterization analysis. Furthermore, the test of influencing factors was used to explore the stability of solvate crystal form and the crystal transformation rules among them. Results Nine solvates were prepared, which including two solvates reported for the first time in this work. Results showed that crystal forms of the 9 solvates have different types or proportions of crystal solvents according to the various results of DSC, TGA, PXRD and IR. Moreover, the nine solvates prepared in this work were metastable crystal forms which could be transformed to non-medicinal forms. Conclusion The composition, thermodynamic property and transformation rule of all the solvates are elucidated in this work. In addition, an effective method for qualitative or quantitative analysis of these solvates was established. The standard graphs and data were used as basic data and scientific basis for the solvate control in the manufacturing of indomethacin.

The diagnosis related groups( DRGs) method is applied in hospital management at both hospital and clinical department level. This technology enabled us to evaluate hospital medical services in general, objectively evaluate discipline development, and formulate individualized discipline guidelines, supporting scientific distribution of hospital resources. At the department level, the technology supported clinical departments in their discipline construction and quality management. The application of DRGs can improve fine management of hospitals.

Objective To study the effect of Bi-level positive airway pressure (BiPAP) on hemodynamics in patients with the chronic obstructive pulmonary disease (COPD) combined coronary heart disease.Methods One hundred patients with COPD combined coronary heart disease treated by BiPAP ventilation were enrolled.The blood gas analysis and the hemodynamics were monitored and analyzed in patients with the COPD combined coronary heart disease before treatment and after BiPAP ventilation treatment for 2 hours,24 hours,72 hours and 1 week.Results PaCO2 decreased significantly after 2-hour's treatment by BiPAP ventilation( P ＜ 0.05) and the heart rate and systolic blood pressure also decreased significantly after 24-hour's treatment by BiPAP ventilation.The left ventricurlar ejection fraction( [ 65.63 ± 6.86 ] ％ vs.[ 56.21 ±5.26]％,P ＜ 0.05 )was significantly improved after BiPAP reatilation treatment for one week.The mean pulmonary arterial pressure ( [ 3.74 ± 0.96 ] vs [ 5.12 ± 1.12 ] kPa,P ＜ 0.01 ),angina pectoris ( [ 0.20 ± 0.01 ]time/d vs [ 0.69 ± 0.03 ] time/d,P ＜ 0.05 ) were significantly decreased.Conclusion COPD combined coronary heart disease patients may achieve an optimal effect by BiPAP ventilation.BiPAP ventilation has no impact on the hemodynamics in patients with the COPD combined coronary heart disease.

Based on the review of status of schistosomiasis transmission and surveillance in P.R. China,this article analyzed the present challenges in the surveillance on schistosomiasis. The focus on schistosomiasis surveillance and the needs for improv-ing surveillance system after the achievement of transmission control of schistosomiasis were explored.

ObjectiveTo explore the effects of fluoxetine on special learning and memory and serum S100B level in depressed model rats.MethodsAdult male SD rats were divided into six groups randomly according random digits table:control group ( A ),depressed model group ( B ),group of depressed model treated with single dose of fluoxetine for one day ( C ),group of depressed model treated with fluoxetine for one week (D),group of depressed model treated with fluoxetine for two weeks (E) and group of depressed model treated with fluoxetine for four weeks (F),ten rats in each group.Except control group,others were subjected to forced-swimming for four weeks,15 min a day.Fluoxetine (10 mg/kg) was given intragastric administration to group C-F before swimming everyday.Morris water maze ( MWM ) was used to measure the spatial learning and memory of rats.ELISA was used to determine the level of serum S100B.ResultsIn the hiding platform test of MWM,there was significant longer of escape latency (EL) in B group than that in A group(P ＜ 0.05 ).And the EL in all groups treated with fluoxetine became shorter with the prolonging of treatment.In the probe test,there were significant longer time in target quadrant in D,E,F than in other quadrant (F =5.162,P ＜ 0.01 ).The levels of serum S100B were lower in E,F groups ( E group ( 0.91 ± 0.23 ) ng/ml,F group ( 0.85 ± 0.21 ) ng/ml) than that in B group (( 1.26 ±0.61 )ng/ml,P＜0.05).ConclusionChronic administration of fluoxetine could improve the impairment of spatial learning and memory and reverse the increase of S100B level in serum of depressed model rats.

Objective To investigate the clinical application of cloth in turning patients over. Meth-ods 80 emergent patients of long-term bedridden without automtic movement and with spinal cord injury and paraplegia were divided into the observation group and the control group with 40 cases in each group. The ob-servation group used cloth for turning over, while the control group used the traditional free hand turning over method, the advantages and disadvantages of the two groups were compared. Results From the aspects of patients' subjective comfort, skin integrity, the labor intensity of nurses, the observation group was better than the control group. Conclusions Turning patients over with cloth overcomes the pushing, pulling, drnging and other defects of traditional flee-hand method, keep patients feel comfortable and skin integrity and non-dam-aged, nurses feel easy because of less labor and time.

As the major commercial source of natural rubber,Hevea brasiliensis attracts much attention.However,the heterozygous nature,long breeding cycle are strong limitations for conventional breeding.While genetic engineering,which can be used to widen the germplasm base and produce desirable agronomic traits quickly and efficiently,offers a viable alternative approach to complement traditional breeding.Comprehensive analysis indicates that in the past two decades,with calli derived from immature anther or integumental tissues of immature fruit as receptors,both biolistic and Agrobacterium-mediated transformation methods were employed for developping rubber genotypes with improved latex yield,tolerance to tapping panel dryness syndrome,producing high-value recombinant proteins,etc.Being recalcitrant to tissue culture,the transformation efficiency of Hevea is comparatively low,and the procedures are still needed to optimize.Finally,breeding objectives and strategies to improve transformation efficiency were also proposed in the review.