TPQ——A+B网版硬化液应用

怎样提高丝网版的寿命,也就是我们常讲的网版耐印率.这一问题牵连到诸多方面的技术、工艺等.如:网纱的选择,网框的强度,绷网的张力,粘网胶的粘结力、稳定性,网版感光胶涂布前的基础处理(粗糙网纱、去油污、去静电等),感光胶的选择、合理应用,感光胶膜的硬化处理等等.这些因素是解决网版耐印率的基础.

B超引导下肝囊肿穿刺抽液加硬化剂治疗的观察及护理分析

目的探讨B超引导下肝囊肿穿刺抽液术加硬化剂治疗的患者的护理方法。方法对该院25例肝囊肿患者采用肝囊肿穿刺抽液术加硬化剂治疗,观察术后恢复情况并总结护理方法。结果 25例患者第1次行经皮肝穿刺抽液术加硬化剂治疗,1个月、3个月、6个月后B超复查,囊肿闭合,其中6例患者为多发性肝囊肿,2个月后更换病灶行第2次治疗,效果良好。结论 B超引导下肝囊肿穿刺抽液术加硬化剂治疗患者,加强病情观察及护理是保证治疗成功的关键。

脑内肥大细胞在多发性硬化和Wernicke脑病中的作用

肥大细胞作为机体固有免疫系统的一种多功能效应细胞,它在免疫反应等病理和生理过程中的作用已研究得较深入,但是,对于它在中枢神经系统疾病中的作用了解得仍较少。近年研究发现,肥大细胞是多发性硬化以及W ern icke脑病发生、发展过程中的重要因素。多发性硬化是一种以中枢神经系统炎性脱髓鞘为特征的慢性疾病,而W ern icke脑病是与物质代谢紊乱有关的疾病。肥大细胞可能通过其释放的介质,促进神经损伤,加快病程并加重病情。深入研究肥大细胞与这两种疾病的内在关系,并进一步研发针对疾病过程中肥大细胞的药物,将为它们的诊治提供新的方向。

液电加工原理及其应用

阐述了目前在国外应用非常广泛的液电加工技术的原理与特点及在机械制造中的应用；探讨了液电加工技术今后的发展趋势及其应用前景。

液电效应及其应用

介绍了液电效应的基本概念及在国内外若干领域的应用,阐述了液电效应原理,液电效应装置及液电成型、喷涂、清砂、硬化等加工方法。指出提高电源的储能密度,研制大功率的转换开关和产生高重复频率的大功率脉冲是该技术最主要的发展方向,应用前景广阔。

“益肾利湿化瘀方”联合穿刺治疗单纯性肾囊肿27例临床研究

目的:观察益肾利湿化瘀方联合B超引导下穿刺抽液硬化术治疗单纯性肾囊肿的临床疗效。方法:将54例单纯性肾囊肿患者(囊肿直径>4cm)随机分为治疗组与对照组,2组均予B超引导下穿刺抽液硬化术,治疗组术后予益肾利湿化瘀方中药汤剂口服28d。比较2组患者手术前后肾囊肿体积、肌酐、尿素氮、尿酸、收缩压等指标变化情况以及囊肿复发率。结果:在行穿刺抽液硬化术后3、6、12个月B超复查穿刺囊肿体积结果显示,2组患者囊肿体积3次复查均明显小于穿刺前(P<0.05),术后12个月治疗组囊肿体积明显小于对照组(P<0.05)。术后12个月治疗组囊肿复发率为7.41%,明显低于对照组的51.85%(P<0.05)。2组患者治疗前后肾功能和收缩压均无明显差异(P>0.05)。结论:采用益肾利湿化瘀方联合B超穿刺抽液硬化术可明显提高疗效,降低囊肿复发率,且具有较高的安全性。

Influence of oxidation heat on hard anodic film of aluminum alloy

The special experimental device and sulfuric acid electrolyte were adopted to study the influence of anodic oxidation heat on hard anodic film for 2024 aluminum alloy. Compared with the oxidation heat transferred to the electrolyte through anodic film, the heat transferred to the coolant through aluminum substrate is more beneficial to the growth of anodic film. The film forming speed, film thickness, density and hardness are significantly increased as the degree of undercooling of the coolant increases. The degree of undercooling of the coolant, which is necessary for the growth of anodic film, is related to the degree of undercooling of the electrolyte, thickness of aluminum substrate, thickness of anodic film, natural parameters of bubble covering and current density. The microstructure and performance of the oxidation film could be controlled by the temperature of the coolant.

多发性硬化患者的脑脊液检测

多发性硬化是中枢神经系统自身免疫性脱髓鞘疾病，在脑脊液中可检测到与疾病相关的生物标志物，因此脑脊液检测是其重要的辅助诊断手段。本文概述多发性硬化患者脑脊液相关生物标志物，包括临床中广泛应用的检测项目和一些具有潜力的生物标志物。

透明红薯脯加工六步骤

1.选料。将充分成熟、光滑饱满、大小适中的红薯块茎洗净、去皮。2.切片。根据块茎形状切成长条或圆片,然后投入已配好的护色和硬化液中浸泡10~15小时。护色和硬化液的合理配比是:柠檬酸0.3%、亚硫酸氢钠0.2%、氯化钙0.2%、蜂蜜1%。3.冲洗。将经过护色和硬化液处理好的薯条(片)捞出,用清水冲洗数次,不留残液,以免糖煮时发生非酶褐变。

Hyperhomocysteinemia and hypercoagulability in primary biliary cirrhosis

AIM： To assess the hypercoagulability in PBC and its relationship with homocysteine （HCY） and various components of the haemostatic system. METHODS： We investigated 51 PBC patients （43F/8M; mean age： 63±13.9 yr） and 102 healthy subjects （86 women/16 men, 63±13 yr）, and evaluated the haemostatic process in whole blood by the Sonoclot analysis and the platelet function by PFA-100 device. We then measured HCY （fasting and after methionine loading）, tissue factor （TF）, thrombin-antithrombin complexes （TAT）, D-dimer （D-D）, thrombomodulin （TH）, folic acid, vitamin B6 and B12 plasma levels. C677T 5,10-methylenetetrahydrofolate reductase （HTHFR） polymorphism was analyzed. RESULTS： Sonoclot RATE values of patients were significantly （P〈 0.001） higher than those of controls. Sonoclot time to peak values and PFA-100 closure times were comparable in patients and controls. TAT, TF and HCY levels, both in the fasting and post-methionine loading, were significantly （P〈0.001） higher in patients than in controls. Vitamin deficiencies were detected in 45/51 patients （88.2%）. The prevalence of the homozygous TT677 MTHFR genotype was significantly higher in patients （31.4%） than in controls （17.5%） （P〈 0.05）. Sonodot RATE values correlated significantly with HCY levels and TF.CONCLUSION： In PBC, hyper-HCY is related to hypovitaminosis and genetic predisposing factors. Increased TF and HCY levels and signs of endothelial activation areassociated with hypercoagulability and may have an important role in blood clotting activation.

Effect of H pylori infection and its eradication on hyperammo-nemia and hepatic encephalopathy in cirrhotic patients

AIM： To investigate the relationship between H pylori infection, blood ammonia concentration and hepatic encephalopathy （HE）, and the effect of Hpylori eradication in cirrhotic patients. METHODS： From July 2003 to January 2005, 457 cirrhotic patients in five regions of Zhejiang Province were enrolled. Patients were evaluated for demographics, number connection test, Hpylori infection, liver impairment, blood ammonia concentration and HE. Patients with Hpylori infection were given I wk therapy with omeprazole plus clarithromycin and tinidazole. ^14C urea breath test was performed and mental symptoms and blood ammonia level were reassessed after RESULTS： Overall H pylori infection rate was 60.6%, and HE occurred in 47.5% of cirrhotic patients. Subclinical HE （SHE） was detected in 55 of 117 cirrhotic patients. Blood ammonia concentration in H pylori negative （n = 180） and positive （n = 277） cirrhotic patients was 53.8 ± 51.4 and 78.4 ± 63.6 μmol/L, respectively （P 〈 0.01）, which was significantly reduced to 53.5 ± 37.7 μmol/L after bacterium eradication （n = 126） （P 〈 0.01）. Blood ammonia was 97.5 ± 81.0 μmol/L in H pylori-positive cirrhotic patients, and this did not significantly change in those with persistent infection after Hpylori eradication （n = 11）. HE was more frequently observed in patients with H pylori infection than in those without （58.5% vs 30.6%, P 〈 0.01）. HE rate significantly dropped to 34.1% after H pylori eradiation （P 〈 0.01）. H pylori prevalence significantly differed among cirrhotic patients with HE （74.4%）, SHE （69.1%）, and those without HE （53.2%） （P 〈 0.05）. Blood ammonia level was significantly different among cirrhotic patients with HE （94.5 ± 75.6 μmol/L）, SHE （59.9 ± 49.2 μmol/L）, and without HE （47.3 ± 33.5 μmol/L） （P 〈 0.05）. Logistic regression analysis showed that blood ammonia concentration, Child-Pugh stage, upper gastrointestinal bleeding, electrolyte disturbance, and urea nitrogen were risk factors for HE. CONCLUSION： H pylori infection is an important factor for inducing high blood ammonia concentration and HE in cirrhotic patients. H pylori eradication may be helpful for treatment and prevention of HE.

Microstructure and mechanical properties of Fe-doped NiAl-28Cr-6Mo eutectic alloys

Room temperature and high temperature microstructural and mechanical properties of arc melted Ni Al-28Cr-6Mo eutectic alloys doped with 0.1% Fe, 0.2% Fe and 0.5% Fe(mole fraction) were investigated. The homogenization heat treatment of the alloys was conducted at 1300℃ in Ar atmosphere. Microscopic analyses, hardness measurements, XRD measurements and compression tests were used to characterize the alloys. As-cast and homogenized alloys exhibit fine cellular eutectic structures with coarse intercellular eutectic structure. The increase in the content of Fe results in coarsening eutectic layers and the decrease in eutectic cells. All alloys have very high compressive stress and strain at room temperature. The addition of Fe has small negative impact on the strength and ductility of the alloys at room temperature. However, the addition of Fe increases the high temperature strength of the alloy. High temperature XRD patterns show that peaks shift to lower Bragg angles. This indicates that the lattice parameter of the alloys increases.

“老高友”(老年高血压)慎用麻黄碱类药

一、临床真实病例 74岁的“老高友”张大伯,患有高血压病30多年,平常一直服用降压药物,血压控制得尚可,但总体上是越来越高（因老年人不可避免地会有血管硬化,推高血压值）。不久前因受寒感冒,出现鼻塞、流涕头晕等症状。

Factors Influencing the Disturbed Flow Patterns Downstream of Curved Atherosclerotic Arteries

Pulsatile blood flows in curved atherosclerotic arteries are studied by computer simulations. Computations are carried out with various values of physiological parameters to examine the effects of flow parameters on the disturbed flow patterns downstream of a curved artery with a stenosis at the inner wall. The numerical results indicate a strong dependence of flow pattern on the blood viscosity and inlet flow rate, while the influence of the inlet flow profile to the flow pattern in downstream is negligible.

Curative Effect of Naoxintong Capsule in Treating Senile Cerebral Arteriosclerosis

Objective： To observe the curative effect of Naoxintong capsule in treating senile cerebral arteriosclerosis. Methods：60 cases of senile cerebral arteriosclerosis were randomly divided into the contrast group and the treatment group with 30 cases each group. Same medicine was used in two groups. The treatment group was added with Naoxintong capsule. The cerebrovascular hemodynamics index （CVDI） of fight carotid was compared before and after therapy. Results： CVDI of the treatment group after therapy was significantly different from that before therapy （ P 〈 0.05 ～ 0.01 ）. Conclusion： Naoxintong capsule has certain curative effect in treating senile cerebral arteriosclerosis.

Efficacy and safety of Danhong injection in the treatment of arteriosclerosis obliterans:a meta-analysis of randomized controlled trials

Aims:To systematically evaluate the clinical efficacy and safety of danhong injection in the treatment of arteriosclerotic occlusion.Methods:Computer retrieval China knowledge network(CNKI),and Wiper Chinese journal database(VIP),and Wanfang data knowledge service platform,the Chinese biomedical literature database(CBM),Pubmed,science citation index(SCI)database,the Cochrane Library,including eight Chinese English database,to conform to the criteria for the two researchers use the recommended bias risk assessment method to evaluate the Cochrane bias risk,extracted data,and apply the Review Manager software Meta analysis and system evaluation.Results:Finally,13 studies were included,with a total number of 884 cases.The results showed that the clinical efficacy of danhong injection in the treatment of arteriosclerotic occlusion was higher than that of conventional treatment,and the difference was statistically significant[OR=3.08,95%CI(2.07,4.60),P<0.00001].The improvement of arteriosclerosis was more obvious[OR=0.15,95%CI(0.12,0.19),P<0.00001].The improvement of hemodynamics was more obvious[OR=-0.19,95%CI(-0.33,-0.04),P=0.01].No adverse reactions occurred.Conclusions:Danhong injection has higher clinical efficacy in the treatment of atherosclerotic occlusion,more obvious improvement in arteriosclerosis degree and hemodynamics,and higher safety.However,due to the low quality of literature research,more high-quality,large samples and randomized controlled double-blind clinical trials are needed to provide high-level evidence to further verify the efficacy and safety of danhong injection in the treatment of atherosclerotic occlusion.

Role of echo Doppler ultrasonography in the evaluation of postprandial hyperemia in cirrhotic patients

AIM: To assess the role of echo-Doppler ultrasonography in postprandial hyperemia in cirrhotic patients by comparing the results with the hepatic vein catheterization technique.METHODS: Patients with cirrhosis, admitted to the portal hemodynamic laboratory were included into the study. After an overnight fast, echo-Doppler ultrasonography (basal and 30 min after a standard meal) and hemodynamic studies by hepatic vein catheterization (basal, 15 min and 30 min after a standard meal) were performed. Ensure Plus (Abbot Laboratories, North Chicago, IL) was used as the standard liquid meal. Correlation analysis of the echo-Doppler and hepatic vein catheterization measurements were done for the basal and postprandial periods.RESULTS: Eleven patients with cirrhosis (5 Child A, 4 Child B, 2 Child C) were enrolled into the study. After the standard meal, 8 of the 11 patients showed postprandial hyperemia with increase in portal blood flow, portal blood velocity and hepatic venous pressure gradient. Hepatic venous pressure gradient in the postprandial period correlated positively with postprandial portal blood velocity (r = 0.8, P < 0.05) and correlated inversely with postprandial superior mesenteric artery pulsatility index (r = -1, P < 0.01).CONCLUSION: Postprandial hyperemia can be efficiently measured by echo-Doppler ultrasonography and the results are comparable to those obtained with the hemodynamic studies.