Cerebrospinal fluid free sialic acid and aspartate transaminase levels in meningitis

Background  Sialic acid (SA) is a nine carbon sugar derived from mannosamine and pyruvate. High levels of sialic acid and aspartate transaminase (AST) levels in cerebrospinal fluid have been described in pyogenic meningitis (PM) compared to tubercular meningitis (TBM). Objectives  To evaluate the levels of CSF free SA in PM and TBM and to assess the correlation between CSF free SA and CSF glucose or total protein levels. Patients and Methods  A total of 122 subjects were studied and divided into children and adults. Further, these have been subdivided into controls, PM and TBM. CSF free SA was estimated by thiobarbituric acid assay of Warren and AST by Reitmann and Frankel method. Results  CSF free SA and AST levels in children and adults were significantly high in PM (p<0.001) as compared to TBM and controls. Conclusion  A very high CSF free SA and AST were found to be characteristic of PM, making them useful parameters to differentiate PM from TBM.     

Type-2 diabetes related intermediate phenotypic traits in north Indian diabetics

Asian Indians are known to be at a higher risk of developing T2DM, but the underlying genetic factor in this population is still not well understood. T2DM is a complex genetic trait and assessment of disease related intermediate phenotypic traits is an important initial step towards any systematic genomic study. Therefore, in the present study we have assessed diabetes related intermediate phenotypic traits of insulin secretion and insulin resistance in the patients belonging to this population. The study included 157 T2DM patients of either sex ranging in age from 45–80 years and 84 non-diabetic subjects with no family history of diabetes, ranging in age from 45 to 75 years served as controls. Intermediate phenotypic traits studied were BMI, W: H ratio, fasting free fatty acid level and Insulin resistance and secretion. Diabetics were found to have significantly higher W: H ratio (p<0.001), FFA (p<0.001) and HOMA-R (p<0.001) as compared to non-diabetics. However, there was no significant difference in their BMI and HOMA-β. There was a positive correlation between FFA level and HOMA-R among diabetics, but not among controls. These findings suggest that in abdominal obesity FFA mediated insulin resistance is an important causative factor underlying T2DM in this population. Moreover, comparable HOMA-β in diabetics reflects compensatory insulin hyper secretion in these subjects. There is a need to examine relative contribution and precise nature of genetic factor in their tendency for central obesity, free fatty acidemia and insulin resistance.     

Effect of<Emphasis Type="Italic">Vitex negundo</Emphasis> leaf extract on the free radicals scavengers in complete Freund's adjuvant induced arthritic rats

The effect of the oral administration ofVitex negundo leaf extract on the levels of enzymic and non-enzymic antioxidants were studied in the adjuvant induced arthritic (AIA) rats The levels of antioxidant enzymes such as SOD, CAT, GPx, G6PD, GSH and Vit-C were estimated in various groups of the experimental rats. It was observed that the antioxidant enzyme levels in the AIA were significantly low when compared to normal rats. A significant decrease in enzymic antioxidant—SOD, CAT, GPx, G6PD and non-enzymic antioxidant—GSH, Vit-C were observed in the liver of AIA rats compared to the normal rats. These results suggest that the leaf extract ofVitex negundo possesses antioxidant activity.     

思想政治教育价值目标研究——基于马克思主义人性理论

传统的思想政治教育,侧重于社会的本体论意义,忽视了思想政治教育的育人功能,导致思想政治教育效果不显著.而思想政治教育的对象是人,思想政治教育工作就是做人的工作,以塑造人、完善人为目标.因此,思想政治教育理应与人性论相结合.马克思主义人性论是发展人性论,思想政治教育必须遵循人性的发展性,真正做到尊重人、依赖人、塑造人,不断提升人性.     

聚碳酸酉眇聚对苯二甲酸丁二酯合金无卤阻燃研究进展

综述了聚碳酸酯（PC）、聚对苯二甲酸丁二酯（PBT）及其合金的无卤阻燃研究的进展,分别论述了硫系、硅系、氮系、磷系、硼系等多个体系的阻燃机理,对其优缺点进行了评价,介绍了PC／PBT无卤阻燃发展的方向。     

超大型储液罐流固耦合振动分析

针对某超大型储液罐进行了流固耦合振动分析。首先应用ANSYS建立了储液罐-液体的流固耦合振动模型,求得了前20阶振动模态;接着分析了液面波动和储液量对耦合固有频率的影响,并取了一个高罐模型进行了高、低罐的模态分析对比;最后对"象足凸鼓"现象进行了探讨,解释了造成"象足凸鼓"现象的原因。     

强夯振动影响范围研究综述

强夯法加固地基具有效果显著、设备简单、适用范围广、经济易行等优点,但强夯振动对周围环境和建筑物产生的不良影响也不容忽视。文章分析了强夯对周围建筑物产生影响的原因,确定了强夯振动影响范围的指标和方法。     

电流变液可变阻尼减振数控机床实时控制系统

通过自动可调高压直流电源的电压大小可随数控机床主轴的振幅进行实时调节。使加在电流变液阻尼器中电压值发生变化，电流变液的黏度值随之发生改变，嘲而改变阻尼器的阻尼值和主振系的刚度值及主轴的振幅，最终达到控制数控机床主轴振幅的目的。该研究建立振幅-电压-阻尼三者的减振模型。振幅实时控制系统采用PID控制，并对系统性能进行了分析和预测。     

参量激励作用下非线性系统的二参数分叉

参量激励下的Duffing-van der Pol系统是一个多参数的非线性系统,本文研究了该系统的二参数共振分叉问题,利用多尺度方法得到了系统的一次近似平均方程和分叉响应方程.分析了分叉方程的解及其在二分叉参数平面上的分布.研究了零解的稳定性.     

推行出境免税制以促进我国经济发展

出境免税政策是针对旅游者以及短期出境交流人员在购买商品方面所给予的优惠政策,在欧盟国家已实行多年。若在我国实施出境免税政策可以极大地促进我国经济、尤其是对外贸易的发展,它的特殊作用是其他政策难以起到的,有利于我国国民经济整体实力的提高。