长时间运动时血清氨基酸动态变化的研究

通过对普通人及长泳运动员各１２人以５０％ＶＯｍａｘ强度长时间运动进行动态观察，发现至运动３０分钟时，伴随ＢＣＡＡ下降，Ａｌａ明显升高；６０～９０分钟时，Ａｌａ和ＢＣＡＡ又分别呈现下降及上升趋势，且两组变化程度无显著性差异。提示在ＡＡ代谢过程中，Ａｌａ与ＢＣＡＡ的变化是不一致的；运动训练未对葡萄糖－Ａｌａ循环产生深刻影响。     

不同的译者,不同的服饰美——以《红楼梦》第四十九回为例

《红楼梦》中第四十九回对众多女性人物的服饰进行了淋漓尽致的描写,充分展现了中国的服饰文化。但由于文化背景的差异,杨译和霍译在英译人物服饰色彩、质料、款式时,采用了不同的译法,给读者展现了不一样的服饰美。     

不同季节绿茶中茶多酚、咖啡碱和氨基酸含量分析

绿茶我国被誉为"国饮".大量科学研究证实,绿茶中的茶多酚、咖啡碱和氨基酸等具有一定的药理功效.绿茶一年有三季,分别为春茶、夏茶和秋茶,其中春茶和秋茶的口感相似,但是市场价格却相差几十倍,但是其主要成份是否有差异,并未见报导.该研究用国标法和红外光谱法分别对南京地区新鲜的春季茶和秋季绿茶样品中茶多酚、咖啡碱和氨基酸进行分析,两者的实验结果都为春季绿茶中茶多酚、咖啡碱和氨基酸的量高于秋季绿茶.     

五河野生大豆油脂肪酸组成的GC／MS分析

研究五河野生大豆油的脂肪酸组成,为开展优质大豆育种、研究大豆种质资源和开发利用野生大豆油等提供理论依据。采用索氏抽提法提取豆油中的脂肪,运用气相色谱———质谱联用(GC/MS)技术对其脂肪酸组分进行分析。结果表明,五河野生大豆中共检出12种脂肪酸,其中不饱和脂肪酸含量为78.81%,以亚油酸、油酸、亚麻酸为主,其含量分别为47.33%、15.66%、15.40%,该油脂中还含有其它植物中很少见的脂肪酸十七烷酸,该油脂具有抗癌功能。该油脂具有较高的营养保健作用和很好的开发应用前景。     

Fatty Acid Oxidation Disorder with Secondary Mitochondrial Energy Production Defect: A Case Report

The presentation of long-chain fatty acid oxidation disorders (FAOD), unlike short and medium-chain disorders can be with secondary defects in mitochondrial function along with typical features of FAOD. We report an infant with Reye-like presentation and acylcarnitine profile suggestive of very-long-chain acyl-CoA dehydrogenase deficiency who had lactic acidosis and urine gas chromatographic pattern of mitochondrial defects.     

Situated Knowledge and the Virtual Science and Industry Museum: Problems in the Social-Technical Interface

The Museum is a perspicuous site for analysing the complex interplay between social, organisational, cultural and political factors which have relevance to the design and use of virtual technologies. Specifically, the introduction of virtual technologies in museums runs up against the issue of the situated character of information use. Across a number of disciplines (anthropology, sociology, psychology, cognitive science) there is growing recognition of the situatedness of knowledge and its importance for the design and use of technology. This awareness is fostered by the fact that technological developments are often associated with disappointing gains for users. The effective use of technology relies on the degree to which it can be embedded in or congruent with the local practices of museum users. Drawing upon field research in two museums of science and technology, both of which are in the process of introducing virtual technologies and exploring the possibilities of on-line access, findings are presented which suggest that the success of such developments will depend on the extent to which they are informed by detailed understanding of practice-practices that are essentially socially constituted in the activities of museum visitors and the daily work of museum professionals.     

Simultaneous detection of seven phenolic acids in Danshen injection using HPLC with ultraviolet detector

A high-performance liquid chromatographic (HPLC) method with ultraviolet (UV) detector had been developed for simultaneous quantification of danshensu, protocatechuie aldehyde, caffeic acid, salvianolic acid D, rosmarinic acid, salvianolic acid B and salvianolic acid A in Danshen injection. According to the UV spectra of these components, three detection wavelengths have been selected as follows: 280 nm for danshensu and protocatechuic aldehyde, 326 nm for caffeic acid, salvianolic acid D and rosmarinic acid, 286 nm for salvianolic acid B and salvianolic acid A. The limit of detection (LOD) was improved to be in the range of 0.008～0.160 μg/ml. Moreover, excellent linear behavior over the investigated concentration range was observed, with R>0.999 for all the analytes.     

强弱酸混合液PH计算新方法

本文应用解析法以质子等衡式为依据,先分别算出强,弱酸的酸度,再用加合公式把它们加合起来,以算出混酸溶液的PH,该法比原有方法简便,适用性广,算出的结果也较准确。     

九州虫草与冬虫夏草、蛹虫草氨基酸成分比较

研究了九州虫草有效部位的氨基酸组成,并与冬虫夏草及蛹虫草进行了比较.测定结果表明所测样品中分别含有16-18种氨基酸,必需氨基酸含量都较丰富,分别占每种样品氨基酸总量的66.93%、34.48%、46.18%、46.62%、38.96%、37.38%.结果表明九州虫草无论是菌丝体还是子座,在氨基酸方面具有较高的营养价值和药用保健价值.     

直接进样法测定植物油中的脂肪酸

对植物油不经衍生化直接进样对脂肪酸进行测定 ,采用毛细管气相色谱法分析植物油中的脂肪酸成分和含量 ,其灵敏度比 GC(普通填充柱气相色谱法 )提高了 1 0 2～ 1 0 3倍