一类双边障碍问题的积极集算法

双边障碍问题是一类应用十分广泛的问题.使用积极集算法求解带T-单调算子对应的双边障碍问题,建立了算法的单调收敛性定理.     

高校图书馆NOVELL网络服务器安全措施浅析

针对网络服务器在高校图书馆网络中的核心和特殊地位，本文提出了保证ＮＯＶＥＬＬ网络服务器安全运行的几点措施。     

WCDMA系统内小区重选参数影响研究

WCDMA系统内小区重选参数包括：Treselection（小区重选触发时间）、Qhyst2（小区重选迟滞）、Qoffset2（小区重选偏移）．通过对测试小区的小区重选参数Treselection、Qhyst2、Qoffset2分别设置不同的数据，通过路测来分析其不同影响，测试结果表明当Treselection、Qhy...     

Cloning of aminopeptidase N promoter and its activity in hematopoietic cell and different tumor cell lines

Aminopeptidase N (APN) promoter region was cloned and sequenced from peripheral blood mononuclear cells. The recombinant reporter construct containing the promoter and luciferase gene, designated pXP1-APNLuc, was introduced into myeloblastic cell line, T lymphocyte cell line and various tumor cell lines. Luciferase assay showed that APN upstream promoter is myeloid-specific for high expression in myeloblastic cell line and much lower expression in T lymphocyte cell line. The promoter activity was relatively high in lung adenoma cell line compared with other tumor cell lines including hepatoma cell line, tong cancer cell line and esophageal cancer cell line in which the promoter activity significantly diminished or was almost undetectable. The characteristics of APN promoter may provide a new strategy for specific myeloprotection while tumor patients are being treated with chemotherapy and/or radiotherapy.     

辽宁旅游经济发展的空间差异变化

以辽宁省14个城市为区域研究单元,从区域经济学的角度,运用变异系数、相对发展率、SPSS的主成分分析等方法,分析了1996～2007年辽宁省旅游经济发展的空间差异变化.结果显示:辽宁省各地级市旅游经济发展出现了相对差异逐渐缩小、绝对差距越来越大的格局;辽宁省在旅游经济发展上存在2个很大的断层,并且随时间的变化在不断扩大;大连在辽宁省的旅游经济中首位度过高,辽宁省旅游经济发展过程中存在极化效益倾向.     

黄酒营养价值的研究

从黄酒中的氨基酸、维生素、有机酸、微量元素的含量论述了黄酒的营养价值     

The p38/MAPK pathway regulates microtubule polymerization through phosphorylation of MAP4 and Op18 in hypoxic cells

In both cardiomyocytes and HeLa cells, hypoxia (1% O₂) quickly leads to microtubule disruption, but little is known about how microtubule dynamics change during the early stages of hypoxia. We demonstrate that microtubule associated protein 4 (MAP4) phosphorylation increases while oncoprotein 18/stathmin (Op18) phosphorylation decreases after hypoxia, but their protein levels do not change. p38/MAPK activity increases quickly after hypoxia concomitant with MAP4 phosphorylation, and the activated p38/MAPK signaling leads to MAP4 phosphorylation and to Op18 dephosphorylation, both of which induce microtubule disruption. We confirmed the interaction between phospho-p38 and MAP4 using immunoprecipitation and found that SB203580, a p38/MAPK inhibitor, increases and MKK6(Glu) overexpression decreases hypoxic cell viability. Our results demonstrate that hypoxia induces microtubule depolymerization and decreased cell viability via the activation of the p38/MAPK signaling pathway and changes the phosphorylation levels of its downstream effectors, MAP4 and Op18.     

踏跳动作胫骨应力有限元分析模型的建立

运用有限元法 ,建立了分析踏跳动作胫骨应力的一个初级模型.通过分析确定了该模型的边界条件 ,为踏跳胫骨应力分析提供必要理论依据.     

用水萃取法提取仙人果中的玫瑰红色素

以水为萃取剂,加入L-抗坏血酸作抗氧化剂、果胶酶降解果胶、改性甲壳胺吸附蛋白质.提取仙人果中的玫瑰红色素,此法萃取率高、工艺简单、无污染.     

太白山蝗虫的垂直分布及区系分析

太白山的蝗虫有２总科、７科、３４种，分布于８个垂直带．以１３００～１８００ｍ的锐齿栎林带最多，７２０～１３００ｍ的栓皮栎林带次之，１８００～２３００ｍ的辽东栎林带居第三，７２０ｍ以下的农耕带为第四，２３００ｍ以上较少．其区系为古北界与东洋界过渡地带，以东洋界为主．