Call for Papers PSCC’05 in Liège Belgium,Aug.22-26,2005

The 15th Power Systems Computation Conference (PSCC'05) will take place in Liege, Belgium,August 22-26, 2005. PSCC has developed into one of the premier conferences in the area. The emphasis is on both theoretical developments as well as practical applications in the utility and manufacturing industries.

WCCI 2008 CALL FOR PAPERS IEEE World Congress on Computational Intelligence HongKong June 1-6, 2008

)The 2008 IEEE World Congress on Computational Intelligence (WCCI 2008) will be held at the HongKong Convention and Exhibition Centre during June 1-6, 2008. WCCI 2008 will be the fifth milestone inthis series with a glorious history from WCCI 1994 in Orlando, WCCI 1998 in Anchorage, WCCI 2002in Honolulu, to WCCI 2006 in Vancouver. Sponsored by the IEEE Computational Intelligence Society,

Second World Conference on Digestology Beijing,September 8-11,2000 Call for Papers

Organizer,date and venueThe Second World Conference on Digestology will beheld in the Beijing International Convention Center,Beijing,China on September 8-11,2000 by World Journal ofGastroenterology and World Chinese Journal of Digestologyand the Committee of World Digestology Network (http://www.wd.org.cn).About 2000 participants are expected toattend the meeting.

Second World Conference on Digestology Beijing,September 8-11,2000 Call for Papers

Organizer,date and venueThe Second World Conference on Digestology will beheld in the Beijing International Convention Center,Beijing,China on September 8-11,2000 by World Journal ofGastroenterology and World Chinese Journal of Digestologyand the Committee of World Digestology Network(http://www.wd.org.cn).About 2000 participants are expected toattend the meeting.

ICNSC 2008 CALL FOR PAPERS 5th IEEE International Conference on Networking, Sensing and Control Sanya China April 6-8, 2008

Conference Theme Advanced Technologies for Emergency Planning and ResponseThe 2008 IEEE International Conference on Networking, Sensing and Control will be held in Sanya,China. The main theme of the conference is advanced technologies for emergency planning and re-

8-hydroxy-2-(di-n-propylamino)tetralin intervenes with neural cell apoptosis following diffuse axonal injury

Previous studies have reported a neuroprotective effect of 8-hydroxy-2-（di-n-propylamino）tetralin （8-OH-DPAT） against traumatic brain injury. In accordance with the Marmarou method, rat models of diffuse axonal injury were established. 8-OH-DPAT was intraperitoneally injected into model rats. 8-OH-DPAT treated rats maintained at constant temperature served as normal temperature controls TUNEL results revealed that neural cell swelling, brain tissue necrosis and cell apoptosis occurred around the injured tissue. Moreover, the number of Bax-, Bcl-2- and caspase-3-positive cells increased at 6 hours after diffuse axonal injury, and peaked at 24 hours. However, brain injury was attenuated, the number of apoptotic cells reduced, Bax and caspase-3 expression decreased, and Bcl-2 expression increased at 6, 12, 24, 72 and 168 hours after diffuse axonal injury in normal temperature control and in 8-OH-DPAT-intervention rats. The difference was most significant at 24 hours. All indices in 8-OH-DPAT-intervention rats were better than those in the constant temperature group. These results suggest that 8-OH-DPAT inhibits Bax and caspase-3 expression, increases Bcl-2 expression, and reduces neural cell apoptosis, resulting in neuroprotection against diffuse axonal injury. This effect is associated with a decrease in brain temperature.

Regulation of adenosine triphosphate-sensitive potassium channels suppresses the toxic effects of amyloid-beta peptide(25-35)

In this study, we treated PC12 cells with 0-20 μM amyloid-β peptide （25-35） for 24 hours to induce cytotoxicity, and found that 5-20 μM amyloid-β peptide （25-35） decreased PC12 cell viability, but adenosine triphosphate-sensitive potassium channel activator diazoxide suppressed the decrease in PC12 cell viability induced by amyloid-β peptide （25-35）. Diazoxide protected PC12 cells against amyloid-β peptide （25-35）-induced increases in mitochondrial membrane potential and intracellular reactive oxygen species levels. These protective effects were reversed by the selective mitochondrial adenosine triphosphate-sensitive potassium channel blocker 5-hydroxydecanoate. An inducible nitric oxide synthase inhibitor, Nw-nitro-L-arginine, also protected PC12 cells from amyloid-β peptide （25-35）-induced increases in both mitochondrial membrane potential and intracellular reactive oxygen species levels. However, the H202-degrading enzyme catalase could not reverse the amyloid-β peptide （25-35）-induced increase in intracellular reactive oxygen species. A 24-hour exposure to amyloid-13 peptide （25-35） did not result in apoptosis or necrosis, suggesting that the increases in both mitochondrial membrane potential and reactive oxygen species levels preceded cell death. The data suggest that amyloid-β peptide （25-35） cytotoxicity is associated with adenosine triphosphate-sensitive potassium channels and nitric oxide. Regulation of adenosine triphosphate-sensitive potassium channels suppresses PC12 cell cytotoxicity induced by amyloid-β peptide （25-35）.

Use of a Simple Fabrication Process to Produce a Biosensor： The 3-Hydroxybutyrate Dehydrogenase Case

This study was aimed to construct a biodegradable but reliable 3-β-hydroxybutymte biosensor. In this context a versatile paper based biosensor, quickly, easily and cheaply fabricated is reported. The procedure of fabrication is based on the assumption that the introduction of the enzyme in the carbon ink will allow enzyme stabilization and facilitate the study of the catalysis of enzymes and the detection of substrates. To prove this concept we use the enzyme 3-hydroxybutyrate dehydrogenase, in aqueous solution. This enzyme was chosen because it catalyzes the 3-β-hydroxybutyrate, which results from ketoacidosis. The quantification this substance in the diabetics＇ blood is very important as it can increase the reliability of the diagnosis of glycaemia. To prove the multi-use of this biosensor we not only study the redox process in steady state and during the catalytic process, but also detected and quantify the 3-β-hydroxybutyrate. Our results showed that it was possible to study the redox process that occurred during the catalysis and to confirm the amino acid residues that participate in it. It was also observed that glucose and ascorbic acid can interfere in the detection and quantification of the 3-β-hydroxybutyrate, what should be in mind when the quantification of the 3-β-hydroxybutyrate is made in blood samples.

正交设计优选川木香纸煨工艺

目的:优选川木香纸煨工艺。方法:采用L9(34)正交试验,以挥发油含量和木香烃内酯及去氢木香烃内酯的总含量作为评价指标,对川木香的纸煨工艺进行研究。结果:最佳纸煨工艺条件是将药材加适量的水浸泡,闷润6 h后切成10 cm左右的薄片,干燥,一层草纸一层川木香,120℃条件下煨制2 h。结论:该纸煨工艺稳定可控,可为川木香纸煨品的生产提供参考。

多指标综合评价方法优选木香纸煨工艺

目的:优化木香纸煨工艺参数。方法:采用正交设计试验,以纸煨时间、煨制温度、平铺层数为考察因素,采用HPLC法,以甲醇-水(65∶35)为流动相,测定指标性成分木香烃内酯和去氢木香内酯含量;以番泻叶为致泻剂复制小鼠腹泻模型,各组小鼠灌胃样品水煎剂10 g·kg^(-1),测定药理指标腹泻指数,将成分含量和腹泻指数加权评分,确定工艺参数。结果:方差分析结果显示:纸煨木香时,草纸平铺层数和纸煨温度对木香烃内酯、去氢木香内酯的含量和腹泻指数有显著影响。经综合分析,确定纸煨木香最佳工艺为:将净木香生品饮片,用一层草纸,一层木香片,间隔平铺5层,置120℃烘干箱内,烘煨约2 h,至木香中所含挥发油渗至纸上,焦香,木香呈深棕色时取出。结论:该纸煨工艺稳定可行,可为其质量标准制定奠定基础,有助于扩大其临床应用。

莱州高岭土的特征及工业应用试验

莱州高岭土杂质元素含量较高，白度较低。石英、长石含量较多，主要矿物组成为管状7A埃洛石。经淘洗、除砂、焙烧、漂白后可为工业利用。初步工业试验表明，莱州高岭土可以用作纸张涂料的原料。此为埃洛石粘土的开发应用我到了一条新的途径。

乳酸钠保鲜纸的制备及其对道口烧鸡的保鲜效果

将乳酸钠溶液配成保鲜液喷涂在包装纸上制成抑菌纸,包装道口烧鸡并于4℃条件下贮藏,研究了乳酸钠喷涂浓度对烧鸡感官品质、菌落总数、硫代巴比妥酸(TBA)值和挥发性盐基氮(TVBN)等指标的变化规律。结果表明,用乳酸钠溶液浸泡草纸,并在40℃下烘干后再次浸泡并烘干,制得的抑菌纸的韧性和抗变形能力均较好,适合道口烧鸡的包装。与对照组相比,采用不同浓度乳酸钠溶液制成的抑菌纸均具有一定抑制微生物繁殖和控制TBA值和TVBN上升的作用,能够延缓感官质量的下降,不同程度地延长烧鸡的保鲜期。其中,用5%乳酸钠溶液制成的抑菌纸对道口烧鸡的保鲜效果最好,相对于对照组保存11d,处理组的烧鸡可保存至16d。

冻烤鳗抗生素残留量微生物分析法

本文叙述了农业部1997年批准的中华人民共和国冻烤鳗水产行业标准中以纸片扩散法检测烤鳗样品中抗生素残留量的原理,操作方法,最低检出量和对30份烤鳗样品的检验结果。同时探讨了制定烤鳗抗生素残留量的质量标准和检测方法的思路。

多指标正交试验优化大黄的湿纸煨制工艺

目的:优化大黄的湿纸煨制工艺。方法:以煨制后大黄的外观性状、浸出物含量、总蒽醌含量、游离蒽醌含量、结合蒽醌含量、番泻苷A+番泻苷B含量等多个指标的加权综合评分值为考察指标,采用L_9(3~4)正交试验对用纸量、煨制时间、煨制温度3个因素进行考察,优化大黄的湿纸煨制工艺,并进行验证试验。结果:优化的大黄煨制工艺为每100 g大黄用纸12 g包裹、120℃炮制2 h。验证试验及中试试验结果显示,煨制后大黄的综合评分均值分别为84.99(RSD<2.0%,n=3)、85.06(RSD<2.5%,n=3)。结论:优化后的大黄煨制工艺简便易行,重复性和可操作性好,本研究为煨大黄的规范化制备奠定了技术基础。

普格高铁高碳煤系硬质高岭土矿选矿加工技术研究

阐述了影响煤系硬质高岭土矿用于造纸涂料的主要因素和解决途径，并以四川普格高岭土矿加工利用研究为例，论述了该矿的矿石性质、加工工艺及其特点。通过研究最终获得了高档级涂布原料、中档级涂布原料和造纸填料三种产品，并进行了产品应用试验和技术经济分析。