Post‐traumatic reactions among rescue personnel 96 hours after the Hilton Hotel bombing in Sinai: The effect of previous exposure

This paper considers the immediate post‐traumatic reactions of rescue personnel who were exposed to the Hilton Hotel bombing in Sinai. The entire rescue personnel (n = 26) were assessed and separated into two groups on the basis of previous exposure to the same type of trauma. The results suggest that among rescue personnel, those with previous exposure had a lower level of post‐traumatic symptoms than those who were being exposed for the first time. This supports the hypothesis that previous exposure to the same type of trauma has an immunizing effect for subsequent same type of traumatic event among rescue personnel. Copyright © 2005 John Wiley & Sons, Ltd.     

MMPI‐2 assessed post‐traumatic stress disorder related to job stress,coping, and personality in police agencies

The PK and PS scales of the MMPI‐2 were developed to index the degree of post‐traumatic stress disorder (PTSD). These scales were applied to a sample of 254 mostly male sworn and civilian law enforcement employees from four police agencies. Participants also completed surveys measuring their perceived levels of job stress, their use of a set of coping strategies, and their performance on measures of five global personality domains. The two PTSD scales appeared to have good internal structures and relatively high reliabilities. Employees at greater risk for PTSD reported higher levels of work‐related stress, seemed to use more maladaptive coping strategies, were more neurotic, and tended to be less extraverted, agreeable, and conscientious. Copyright © 2004 John Wiley & Sons, Ltd.     

Scale-up of Adhesive Transdermal Drug Delivery Systems

Pharmaceutical Research -     

豆渣纤维的降脂作用及对血液流变学影响的研究

以ＳＤ大鼠为对象，研究了豆渣纤维对高胆固醇膳动物脂质代谢和血流变性的影响，并与果胶和纯纤维素进行比较，结果表明：８周实验后，豆渣与果胶组动物的血清总胆固醇（ＴＣ）和低密度脂蛋白胆固醇（ＬＤＬ－Ｃ）显著降低，但豆渣组的血脂水平比果胶组更低（Ｐ＜０．０５）。而纯纤维素组未显出降脂作用。各组大鼠的甘油三醋（ＴＧ）和高密度脂蛋白胆固醇（ＨＤＬ－Ｃ）也无明显变化。实验同时表明，６％的豆渣纤维与果胶均可使高脂大鼠的血粘度及血小板聚集率降低（Ｐ＜０．０５），且前者优于后者。相关分析显示，血脂与血流变学指标间存在显著相关性（Ｐ＜０．０５），其中ＴＣ与ＬＤＬ－Ｃ是影响血流变性的重要因素。６％的以上各种纤维摄入量均不影响大鼠的摄食量与生长。     

中空纤维超滤膜净化水质的效果评价

对中空纤维超滤膜净化水质效果的检测和评价结果显示，它能有效的滤除水中细菌，改善水质的感官性状，去除部分水中有机物，降低水中致突变活性物质的含量。提示它在预防水的生物性污染，改善水质感官性状及控制有机物污染等方面具有较高的使用价值。     

丙型肝炎六例报告及随访观察

本文首次报告新疆6例丙型肝炎。对20例病毒性肝炎病人血清进行抗HCV检测,结果6例阳性。结合临床及化验检查,可诊断为丙型肝炎。对此6例进行分析,结果表明:本病多发生在输血后,临床表现不重,肝功能检查主要是ALT反复波动不降,易致慢性。     

实验冻伤大鼠神经纤维的超微结构改变

为探讨冷冻损伤发生、发展及转归的规律，采用健康Ｗｉｓｔａｒ大鼠，分为冻伤组（２０只）和对照组（５只）。电镜下观察大鼠后肢冷冻至－２０℃后即刻、４小时、２４小时及７２小时时周围神经的超微结构改变。冻后即刻，神经髓鞘即出现轻度变性；冻后１～２４小时，有髓神经雪旺细胞及轴突严重变性，而无髓神经变性较轻；冻后７２小时，神经溃变及修复并存，无髓神经较有髓神经易于修复。     

螯合吸附分离功能纤维的研究进展

螯合纤堆是一类能与金属离子形成多配位络合物的纤堆状吸附功能材料，是近年来发展起来的一种新型离子交换纤堆，具有吸附选择性高、易洗脱、容易再生等优点。综述了近年来螯合纤堆的制备方法及种类，对其螯合机理进行了探讨，概括了该纤堆的应用范围并指出了其应用前景。     

三种基牙材料对铸造玻璃瓷冠碎裂影响的研究

目的:研究不同种类和强度基牙材料与瓷冠破折碎裂的内在关系.方法:选用计算机建立上颌中切牙的三维有限元模型,模拟陶瓷层、牙本质、核桩等结构.分析在天然齿基牙、钴铬合金基牙及复合树脂基牙情况下,铸造玻璃陶瓷全冠的瓷层内及残余牙本质的应力分布情况.结果:高弹性模量的钴铬合金能够降低瓷层及残余牙本质内的最大主应力和最小主应力峰值,防止瓷层破折碎裂;而弹性模量与牙本质相近的复合树脂桩降低应力峰值的作用不明显.结论:对于有牙髓活力的牙本质基牙,尽量保存牙髓活力后行全冠修复.对于行根管治疗术后的无髓牙,进行核桩冠修复时,采用高弹性模量的高熔合金,尽量避免使用弹性模量较小的复合树脂核.     

Superoxide dismutases of muscle in mitochondrial encephalomyopathies

Lmmunohistochemical analyses were made of the superoxide dismutases (Mn-SOD and CuiZn-SOD) in biopsied muscles from 7 patients with mitochondrial encephalomyopathies that included mitochondrial encephalomyopathy, lactic acidosis and strokelike episodes (MELAS), and chronic progressive external ophthalmoplegia (CPEO). Mn-SOD mainly was present in the subsarcolemmal region, but it also was found in a coarsely granular, reticular, or diffuse pattern of staining within the muscle fibers. These Mn-SOD-positive fibers corresponded almost completely to the ragged-red fibers. The immunoreaction for CuiZn-SOD was weakly positive in some of the muscle fibers positive for Mn-SOD. In CPEO, Mn-SOD-positive fibers predominantly showed decreased cytochrome c oxidase (COX) activity. In MELAS, Mn-SOD-positive fibers tended to be stained deeply for COX although a few were COX-negative. These findings suggest that Mn-SOD-positive fibers can be used to make a differential diagnosis between CPEO and MELAS and that in mitochondrial encephalomyopathies Mn-SOD in the raggedred fibers may protect against oxidative stress. © John Wiley & Sons, Inc.