锚杆锚固质量无损检测研究进展

对煤矿用锚杆锚固质量检测技术的国内外研究历史及使用现状进行了回顾和分析,并对现有一些检测技术的优缺点进行了简要分析,并对彻底解决锚杆锚固质量无损检测的技术进行了展望。     

传媒态度与网络受众逆反心理

互联网网民受众对于强势媒体的一些信息传播表现出强烈逆反心理,其中既有他们作为普通受众的普遍逆反心理,也有作为网络受众较其他受众群体而特有的逆反心理。媒体特别是国家级媒体,在这个问题上,应该适当“放下身段”,与受众平等对话,体现出作为大媒体应有的气魄和姿态。     

田径技术原理多媒体CAI课件的应用研究

采用查阅文献资料、专家访谈、问卷调查、教学实验、数理统计等多种方法,对多媒体辅助体育教学的效果进行了深入细致的研究,实验结果显示:试验组和对照组学生的考试成绩具有显著性差异;多媒体辅助教学法比传统教学法更有利于提高学生学习的积极性和主动性,有助于分析问题、解决问题能力的提高,也有助于培养学生的创造性思维.     

2008最佳投资人之华夏基金 严冬过后是春天

刚刚过去的2008年,是不平凡的一年。无论是国内的冰雪灾害、地震灾害,还是由美国次贷危机引发的全球金融危机,都给中国和世界带来了严峻的挑战。上证指数从6000多点下跌到目前的2000点附近,市场的急转直下一次次考验着投资者的     

棉花的启示

生命就是一首诗,无论是长还是短,是喜还是忧,是婉约还是豪迈;工整也好,不工整也罢;是感觉平平抑或令人叫绝,都是我们自己书写的结果。活着就是一种幸福,幸福从尊重自己的生命开始。书写自己的生命之诗,字字当用真心酝酿,句句当用真善与大爱滋养。     

寻找身边的力量——高三年级心理辅导课教学设计

<正>【设计理念】社会支持系统是指一个人在社会关系中所能得到的来自他人的帮助和支持。社会支持理论认为,良好的社会支持系统可以降低压力事件的强度,一个人拥有的社会支持系统越强大,就能更好地应对来自外界的挑战。高三学生面临高考这一重大的人生转折点,心理压力大,     

“句读之不知,惑之不解”中的“之”字质疑

高中语文课本第二册《师说》中有这样一句话：“句读之不知，惑之不解”。课文是这样注释的：“句读的不解，疑惑的不明白”。很显然这儿把“之”字理解成助词了。这样的解释我认为欠妥。我们先简单回顾一下“之”字的用法。“之”的第一种用法是作动词，意思是“到……地方去”。如：“吾欲之南海”。意思是“我想要到南海去”。（《为学》）“之”的第二种用法是作代词，可以代人、代物、代事。如：①余嘉其能行古道，作《师说》以贻之。（《师说》，代人，作宾语。）②不复挺者，使之然也。（《劝学》，代物，作兼语。）③学而时习之，不…     

教育政策选择中的理性情感之诉求

本文以伦理学思想为学科基础,以理性与情感为切入点,在政策理性研究的现状基础上,进一步利用博弈关系提出政策理性情感的概念。在此基础上,从其政策情感与政策理性二者的博弈关系探讨入手,指出政策理性情感的实现基础的理想人性的构建和实现的伦理途径的突破,即利己主义与功利主义的博弈关系实现的可能性。因而,全文以政策理性情感的价值与意义为结论,最终落脚于教育政策的选择科学的实现。     

Study of serum Helicobacter pylori soluble antigen

Objective: to explore a new serological method for detecting Helicobac ter pylori ( H. pylori ) infection. Methods: Serum soluble antigen of H. p ylor i was detected by using avidin-biotin ELISA technique to evaluate the status of H. pylori infection and for comparison with rapid urease test ( RUT ), histo logi c examination and serology. Results: The sensitivity, specificity, positive pred ictive value and negative predictive value were 77.46%, 91.07%, 91.67% a nd 76.12 %, respectively. The prevalence rate of serum H. pylori soluble antigen in 138 patients undergoing endoscopy was similar to the rate obtained by 14 C-UBT met hods ( P>0.05 ). Conclusions: The detection of serum H. pylori solub le antigen( HpSAg) could be used as a new serological method which is accurate, and convenie nt, not affected by the memorizing reaction of serum antibody; is more sensitive , m ore specific and suitable for clinical diagnosis, and evaluation of eradication and for follow-up of H. pylori as well as for detection in children and pre gnant women.     

Study on the serum levels of soluble intercellular adhesion molecule-1 (sICAM-1) in patients with Helicobacter pylori Infection

Objective: To evaluate the interaction between serum levels of soluble intercellular adhesion molecule-1 (sICAM-1) and Helicobacter pylori (H. pylori) infection in patients with chronic gastritis and peptic ulcer. Methods: The serum levels of sICAM-1 in 205 patients with chronic gastric diseases were detected by ELISA method and the status of H. pylori was determined by histologic examination, RUT, 14C - UBT, and serology. The sera obtained from 18 healthy volunteers served as controls. Results: The serum levels of sICAM-1 were significantly higher in patients with H. pylori positive than those of H. pylori negative (889.43±32.52 ng/ml vs. 747.07±30.45 ng/ml, P<0.05). The serum levels of sICAM-1 in patients with mild, moderate and severe infection of H. pylori were 841.68±72.36 ng/ml, 905.43±37.59 ng/ml and 1012.54±49.34 ng/ml,respectively (P<0.05). The serum levels of sICAM-1 proved to be significantly correlated with the density of H. pylori colonization in gastric mucosa (rs =0.316, P<0.001). The serum levels of sICAM-1 in patients with chronic gastritis and peptic ulcer were significantly higher than those in healthy controls (P<0.05). Conclusions: These results indicated that H. pylori infection up-regulates the expression of sICAM-1.