辐射事故对公众心理影响及消除方法

此文章系为弄清辐射事故对公众心理的影响，充分研究怎样消除辐射事故信息带来的负面影响，使核事业稳步进展并得到公众支持而完成的。我们已经确定，公众甚至事故发生后的救援人员，往往都对“放射性泄漏”普遍存在着恐惧心理，这种负面影响若不采取相应措施予以减轻乃至消除，将极大的限制核事业的发展。经研究判断，辐射事故会对不同人群带来多种影响。针对此影响的成因与解决方案，本文给出了一些初步的研究结果。     

我国农村土地产权制度探讨

土地制度对社会稳定和经济的发展有着巨大的影响。随着生产力的发展、社会的进步、改革的深化,各种社会、经济因素也在变化,当土地制度在释放其效用潜能达到一定程度后,种种弊病也开始显现。     

河北省转基因抗虫棉花品种纤维品质分析

从2004年开始河北省棉花品种审定进入了除短季棉品种之外全部为转基因抗虫棉品种的新阶段,5年间共审定转基因抗虫棉花品种65个,本研究对其纤维品质性状进行了分析。结果表明:上半部平均长度集中在27.1~32.7 mm,86.2%品种属于Ⅱ型;比强度集中在24.6~32.0 cN/tex,53.85%品种属于Ⅲ型,没有Ⅰ型品种,20%品种低于Ⅲ型;马克隆值集中在3.6~5.3,13.84%品种属于Ⅰ型,83.08%品种属于Ⅱ型。2004-2007年,纤维品质逐年变好,但由于2007年吐絮期长时间降雨,造成2008年纤维品质出现了下滑。总的说来,我省转基因抗虫棉品种没有上半部平均长度≥31 mm,比强度≥34 cN/tex,马克隆值在3.7~4.2的综合表现Ⅰ型的品种,主要表现在比强度没有Ⅰ型品种,因而,我们的应该加强培育高比强的棉花新品种。     

森林资源产权制度研究——历史、问题与对策

森林资源产权制度是调整林业生产关系的基础规范和影响林业生产力发展的重要因素。在回顾和总结我国森林资源产权制度的历史和现状的基础上，分析归纳了我国森林资源产权制度存在五大问题，提出了解决问题的六项对策。     

0.3%印楝素乳油防治油菜潜叶蝇的田间药效试验

以1000倍0.3%印楝素乳油防治油菜潜叶蝇,结果表明:药后11d的校正防效最高,为95.69%;药后3d的校正防效最低,为39.01%。这说明虽然该药剂的速效性差,但药后5d,防效都超过70%。     

Preparation of Pectin/Chitosan Synbiotic Microcapsules and Its Study on Simulated Gastrointestinal Environments and Storage Stability

Pediococcus acidilactici and inulin were used as wall cores,with pectin and chitosan as the shell material.The conditions of microencapsulation were optimized by analyzing the embedding rate,particle morphology,the mechanical strength,gastrointestinal tolerance in vitro and storage performance.The experimental group was divided into three groups:Free Pediococcus acidilactici group (PA),microcapsule group made by embedding Pediococcus acidilactici alone (PC(PA)MCs),synbiotic microcapsule group made by embedding inulin and Pediococcus acidilactici (PC(PA-I)MCs).The results showed that the appearance,particle size,mechanical strength and embedding rate of microcapsules were better when the mass concentration of pectin was 5 g/100 mL,the content of inulin was 25 mg/mL and the mass concentration of chitosan was 0.8 g/100 mL.Through the gastrointestinal tolerance test in vitro, it was found that PC(PA-I)MCs group was relatively stable in the artificial gastric juice in vitro (P<0.05).At the same time,it began to release rapidly in the artificial intestinal fluid in vitro at 30 min and it was almost completely disintegrated after 2 h.It was found that the cell survival rate of PA group decreased significantly at cold and room temperature through the storage test for 4 weeks.While the cell survival rate of PC(PA-I)MCs group decreased slightly.And the cell survival rate of PC(PA-I)MCs group was higher than that of PC(PA)MCs group (P>0.05).At room temperature,the cell survival rate of PC(PA-I)MCs group was higher than that of PC(PA)MCs group (P>0.05).In summary,pectin/chitosan microcapsules with inulin as probiotics had a better embedding effect on Pediococcus acidilactici.     

三聚氰胺对小鼠肾脏的影响及中药治疗试验

给小鼠灌喂三聚氰胺后，经肾功能生化检测、肾脏剖检等手段了解三聚氰胺对小鼠肾脏的影响。结果发现，在灌喂后9,4h～48h内小鼠表现精神不振、反应迟钝、不食等症状；生化检测显示，尿氮素（blood urea nitrogen，BUN），肌酐（creatinine，CRE）明显升高；剖检发现，肾脏表面有淤血斑，输尿管及肾小管内有细沙状结石。在发病后，立即给小鼠灌喂中药，48h之后，小鼠精神好转，生化检测显示小鼠病情有好转，剖检可见结石基本排出。     

新型换流变压器谐波模型及其配套滤波装置设计

阐述了新型换流变压器及其滤波系统的接线方案和谐波抑制机理.建立了新型换流变压器谐波模型,分析计算了新型换流变压器各绕组的谐波电流分布,实验验证了该模型的正确性.对直流输电开发平台进行了滤波装置实例设计,仿真和实验结果基本一致.证明了新型换流变压器及其滤波系统原理正确,滤波效果好,平台参数选择合理,新系统具有良好的应用前景.     

网络信息组织方法

本文介绍了应用于网络信息组织众多方法中比较常用的四种：数字化图书馆、主题网关、书目控制、信息网格。     

MMP-7,MMP-10 and TIMP-4 expression in ventricular remodeling of human heart failure

AIM:To sieve matrix metalloproteinases (MMPs) and the tissue inhibitors of matrix metalloproteinases (TIMPs) closely associated with ventricular remodeling of human heart failure using antibody chip technology.METHODS:We performed cytokine-specific antibody array analysis using individual left ventricular myocardial samples from 6 patients with heart failure due to arrythmogenic right ventricular cardiomyopathy (ARVC) undergoing transplantation and matched samples from 6 non-failing subjects to screen differentially expressed MMPs and TIMPs associated with the ventricular remodeling of heart failure.The results were further validated by ELISA and immunohistochemical analysis.RESULTS:We identified high expression of MMP-7 and MMP-10 and low expression of TIMP-4 in ARVC failing hearts compared to non-failing hearts by hybridization with the cytokine-specific antibody arrays containing 17 MMPs and 4 TIMPs on the chips.ELISA and immunohistochemical analyses further confirmed that differentially expressed levels of MMP-7, MMP-10, and TIMP-4 were observed not only in ARVC failing heart, but also in failing hearts due to ischemic (ICM) and dilated cardiomyopathy (DCM).CONCLUSION:Highly expressed MMP-7 and MMP-10 and lowly expressed TIMP-4 may be involved in the ventricular remodeling of heart failure derived from cardiomyopathy of different etiology.