Escherichia coli prlC gene encodes a trypsin-like proteinase regulating the cell cycle

BACKGROUND AND PURPOSE: Mood disorders are common after stroke and may impede physical, functional, and cognitive recovery, making early identification and treatment of potential importance. We aimed to compare the accuracy of the General Health Questionnaire (GHQ-30) and the Hospital Anxiety and Depression (HAD) Scale in detecting psychiatric morbidity after stroke and to determine the most suitable cutoff points for different purposes. METHODS: One hundred five hospital-referred stroke patients completed both the GHQ-30 and HAD Scale 6 months after onset before a blinded psychiatric assessment in which the Schedule for Affective Disorders and Schizophrenia with some supplementary questions was used to determine a DSM-IV (Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition) diagnosis. Measures were compared in terms of sensitivity, specificity, and receiver operating characteristic curves. RESULTS: No significant differences were found between the GHQ-30 and the HAD Scale in identifying those patients with any DSM-IV diagnosis (P=0.95), grouped depression (P=0.56), or anxiety (P=0.25) disorders. The previously recommended cutoff points for identifying "cases" for the GHQ (4/5) and for the HAD Scale (8/9 and 11/12) were found to be suboptimal in this population. CONCLUSIONS: The GHQ-30 and HAD scale exhibited similar levels of sensitivity and specificity. Data are presented, taking into account the "cost" of false-positives and negatives, to allow a choice of cutoff points suitable for differing situations.     

可视化供配电CAD系统的研究开发

基于科学可视化,对象建模,面向对象的软件开发技术,在解决了图形系统快速开发的几个关键技术,对象关联实现方法及电网中电气元件潜在拓扑描述等问题的基础上,开发了功能较烷 备的实用化供配电ＣＡＤ及管理系统软件。同时,通过开放数据库互联技术实现了图形系统、计算接口与数据管理系统的集成,解决了动态扩充功能,对开发专业领域ＣＡＤ软件具有借鉴作用。     

小波预处理与语音识别

利用小波的带通性质 ,给出了一种新的小波预处理方法 .实验表明 ,经过小波预处理后提取的特征 ,提高了语音的识别率     

谷氨酸发酵液的絮凝过滤研究

对用壳聚糖絮凝处理谷氨酸发酵液的方法进行研究,讨论了ｐＨ值、絮凝剂浓度、温度和搅拌时间对处理效果的影响。实验结果表明：最佳工艺条件是壳聚糖浓度１００ｐｐｍ,ｐＨ５￣６,在３０￣６０℃搅拌１５ｍｉｎ。     

转盘反应器固定米根霉的L-乳酸发酵

研究了米根霉固定化方法 ,考察了在该反应器中培养基及其它操作条件对 L-乳酸发酵的影响。实验结果表明 ,应用吸附法固定米根霉进行 L-乳酸发酵具有发酵速度快 ,L-乳酸得率高等优点     

二溴对甲基偶氮甲磺光度法测定钢中微量锶

研究了二溴对甲基偶氮甲磺与锶生成2:1兰色络合物进行钢中微量锶的测定.该法λ_(max)=638nm,摩尔吸光系数E_(638)=5.01×10~4,锶量在0.02～0.34μg/L范围内服从比尔定律.方法已用于钢中微量锶的测定,结果满意.     

阳离子染料可染改性涤纶及涤纶织物的碱减量研究

以阳离子染料可染改性涤纶丝与普通涤纶丝混纺（或交织）织物为研究对象,探讨碱剂。促进剂、减量温度及时间等因素对减量率的影响以及不同减量工艺经阳离子染料染色对织物闪色效果的影响。研究表明在保证一定减量率的基础上,染色后织物具有一定的闪色效果。     

5种药用植物挥发油对仓库害虫生物活性的研究

研究了香薷、鹤虱等５种药用植物挥发油对仓虫的生物活性作用。结果表明,香薷挥发油的作用最为明显,它（剂量０２μＬ／ｇ）及其粗分离１＃～５＃样品（剂量００５μＬ／ｇ）均有效地抑制了试虫卵、幼虫及成虫的生长发育,从而减少了试虫Ｆ１代种群的发生,其中粗分离１＃样品作用尤为突出。香薷挥发油１＃～５＃样品的主要化学成分为４,５,６,７,８,８ａ－六氢－８ａ－甲基－２［１Ｈ］－奥酮（５２６４％）、百里香酚（３０５％）和一未定成分（２１９２％）。     

复合型导电高分子材料研究进展

简述了复合型导电高分子材料的研究及发展,并对其导电机理、基体树脂、导电填料的研究概况进行了述评,介绍了其在各领域中的应用．     

走向断层造成地层重复和缺失的简捷判断法

构造地质学对走向断层造成的地层重复,缺失一直沿用Ｃ．Ｍ．Ｎｅｖｉｎ的方法判断,此法比较繁琐。用以下法则可使其简捷：走向断层横剖面上如果上升盘地层扬起,则地表地层缺失;反之,如果上升盘地层倾伏,则地层重复。