仔猪猪瘟母源抗体及免疫抗体监测实验研究

由于猪瘟流行性差异,研究制订符合本地实际的猪瘟免疫程序是有效防控猪瘟的关键措施之一,而确定仔猪最佳首免日龄和免疫剂量是研究猪瘟免疫程序的两个重要内容。本文提出应用PPA(酶标葡萄球菌蛋白A)-ELISA法对达县某猪场进行了仔猪猪瘟母源抗体及免疫抗体监测实验研究,实验结果表明25日龄为最佳免疫日龄,1倍剂量为最佳免疫剂量。     

半导体（砷化镓）激光照射对犬创伤愈合及细胞免疫机能的影响

以犬为试验动物研究了半导体 (砷化镓 )激光照射创面对皮肤缺损创愈合以及血液中酯酶染色阳性淋巴细胞数的影响。结果表明 ,用波长 890nm ,平均功率 2mW ,峰值功率 5W的半导体激光照射创面可使边长 2cm的正方形犬皮肤全层缺损创平均提前 3.5 1d愈合 ,并使血液中酯酶染色阳性淋巴细胞数明显提高     

Isolation, chemical characteristics and immunity activity of an extracellular polysaccharide EPSⅠ isolated from Antarctic bacterium Pseudoalteromonas sp. S-15-13

A new extracelluar polysaccharide (EPS) was isolated and purified from Antarctic bacterium S-15-13, identified as Pseudoalteromonas sp. After being separated and purified by DEAE-Sephadex A-50 ionexchange and Sephadex G-100 gel chromatography, two mains fractions (EPSⅠand EPSⅡ) were obtained. EPSⅠwas composed of mannose, glucose and galactose with a molecular weight of 23kDa and EPSⅡwas composed of mannose only with a molecular weight of 62kDa.The effect of the polysaccharide EPSⅠ on the cellular immune response of mice was investigated. Results demonstrated that EPSⅠ could markedly facilitate lymphocyte proliferation, and might be a strong immunomodulator.     

心理神经免疫学发展综述

二十世纪70年代初，Robert Ader开创了一个新的跨学科研究领域--心理神经免疫学，是一个研究行为、神经和内分泌功能与免疫过程之间相互影响的综合领域。从脑、行为、神经、内分泌、运动和心理六个方面与免疫的关系，介绍近些年来心理神经免疫学的研究进展情况，以有助于人们对心理神经免疫学这门学科的了解。     

Application of mobile scanning agent in the network security

To enhance the security of network systems, puts forward a kind of software agent is put forward, which has the induction ability of network frameworks and the ability of behavior independence. It is mobile scanning agent. More attentions is paid to expound how to design and realize mobile scanning agent. Besides, it is also explained the programs of mobile scanning agent system. In the end, it expects mobile scanning agent.     

何首乌提取物对哺乳动物皮肤稳态的影响

目的：研究何首乌提取物对哺乳动物皮肤稳态的影响。方法：采用何首乌提取物，通过皮肤外敷试验，以皮肤角质层水分含量和角质细胞脂褐素含量为指标，观察对哺乳动物皮肤的稳态的作用，结果，何首乌提取物能有效提高皮肤角质层水分含量，降低角质细胞脂褐素含量，结论：何首乌提取物对皮肤的渗透屏障起重要作用。     

关于建立证人资格豁免制度的理性思考

为维护正常的社会秩序,避免因某些证人的证言使其他的社会价值和利益遭受损害,西方国家对基于特定身份的人如配偶、律师、医生在作证方面基本都规定了证人特权,我国法律中尚无拒证权的规定。为使法律体现出的价值与人的本性相一致,以便更好地维护社会道德和伦理秩序,从而更好地实现法律的价值和目的,有必要排除这些人作为证人的资格,建立证人资格豁免制度。     

轨道电路传导性干扰抗扰度试验的设计

讨论了轨道电路受牵引电流传导性干扰的试验内容和技术要求 ,设计了 50Hz基波和谐波试验方案 ,并提出了试验方法 .     

定向井表皮因子的计算方法及应用

研究了微可压缩流体在斜井内的不稳定流动状态,给出了数学模型,推导出了油井的完善程度和油井倾斜造成的表皮因子的计算式。该计算方法考虑了油井的倾斜度、打开程度、打开位置及油层均质性等因素。实际计算表明,方法简便、准确可靠,可用于计算定向井流体流入动态。     

Physiological and nutritional importance of selenium

Summary The essential trace element selenium has recently attracted attention because of its potentialities in the maintenance of human health. Selenium forms part of the active site of the peroxide-destroying enzyme glutathione peroxidase, and it also has other functions, for example in biotransformation, detoxification and the immune response. Functional and clinical consequences of selenium deficiency states have been described, and the selenium requirement, which is influenced by the usual selenium exposure, has been discussed. Wide variations have been found in selenium status in different parts of the world, and populations or groups of patients exposed to marginal deficiency are more numerous than was previously thought.Current research activities in the field of human medicine and nutrition are devoted to the possibilities of using selenium for the prevention or treatment of degenerative or free radical diseases such as neurological disorders, inflammatory diseases or cancer. Pharmacological selenium doses are also recommended as an adjuvant in some treatments.