Event-related potential correlates of functional hearing loss: Reduced P3 amplitude with preserved Nl and N2 components in a unilateral case

Abstract A female patient exhibiting functional hearing loss in her left ear demonstrated reduced amplitude of P3 component in event-related potentials (ERP) to left monaural stimulation, with preserved N1 and N2 components to stimulation of either ear. This result suggested that stimuli in the affected ear were conducted successfully up to the auditory cortex but that further processing in higher brain regions was 'repressed'. Event-related potential examination for such hysterical disorders could be useful in clarifying their brain mechanism and offer a useful diagnostic clue to its nature.     

Health insurance and private providers: A study of the civil servants' medical benefit scheme in bangkok,Thailand

Compulsory health insurance schemes have received attention recently as a means of creating a reliable extra-budgetary source of health care funding. Yet, the full implications of such schemes in a developing country context are unclear; in particular, the impact on and relationship with private sector providers has infrequently been explored. This study examines patterns of public and private sector utilization under the Civil Servants' Medical Benefit Scheme (CSMBS) in Bangkok, Thailand. The CSMBS currently provides limited reimbursement for private inpatient care, but recent proposals suggest increasing benefit levels for care sought in the private sector. The study shows that despite high level of cost recovery in the public sector, charges were much lower than those in the private sector. Different patterns of diagnosis in the two sectors were found with private hospitals tending to treat a less complex case mix. Within the private sector, there was a limited tendency to specialize in certain types of care. It is concluded that under the current payment mechanism of fee-for-service reimbursement, measures to enhance access to private sector care should be approached with caution. In the long run, the scheme should merge with the recently established social security scheme.     

药物构效关系研究与药物设计中常用计算机软件

分子力学、量子化学和分子图形学是研究有机药物分子电子特性、空间性质及其与受体相互作用的有力工具。现扼要介绍国内外较常用的量子化学和分子力学及分子图形学有关计算机程序的应用特性。     

屈膝过程中的胫股运动特性分析

本文采用三维位移测量方法，测试１０例离体人膝标本的胫股关节三维运动特性。发现屈膝过程中，胫股运动也具有典型的三维运动特点。其中在屈膝初期的３０°内，胫骨内旋最明显并伴有胫骨内翻现象，平均内旋８°，内翻６－７ｍｍ，膝关节完全伸直时胫股扣锁使膝关节稳定，屈曲时胫股“解锁”使膝关节松弛，具重要的临床意义，同时提示，在解释传统的胫股扣锁现象时不应遗漏伴随发生的胫骨内／外翻现象。     

论神经在腧穴针感形成中作用

腧穴针感在针刺防治疾病过程中发挥着重要作用。本文从针刺作用的感受器,腧穴针感的外周传入神经,以及针感与中枢神经的关系,诸方面,列举大量实验结果和理论,阐明针感形成的物质基础是神经系统。     

Bilateral organized chronic subdural haematomas: High field magnetic resonance images and histological considerations

Summary The authors describe a 66-year-old man with progressive gait disturbance caused by bilateral organized chronic subdural haematomas. The characteristics of these lesions on magnetic resonance (MR) images have not yet been clarified. The organized haematoma in our patient exhibited slight hypo-intensity on T 1-weighted MR images and marked hypo-intensity on T 2-weighted MR images obtained at 1.5 T. Preoperative MR imaging may give us useful information about surgical strategy in the case of chronic subdural haematoma with an unusual appearance on computed tomographic (CT) scans.     

润滑油抗泡机理的研究 Ⅱ.助泡剂对泡沫倾向的影响及抗泡剂配伍性能

考察了各类添加剂在不同浓度、温度及不同基础油中的泡沫倾向,并测定了这些条件下体系的表面张力。从表面化学角度解释了添加剂对泡沫性质的影响,并通过对抗泡剂配伍性能的研究,验证了消泡机制:抗泡剂须具备高的表面活性才能吸附于泡膜表面,降低泡膜的表面粘弹性,改变膜的流变性能,从而起消泡作用。     

白色念珠菌感染的分子生物学诊断研究进展

综述了白色念珠菌感染的分子生物学诊断研究进展，包括核型分析，限制性片段长度多态性分析，特异的ＤＮＡ探针及ＰＣＲ等方法。     

创园林环卫品牌建长效管理机制

青岛市城阳区园林环卫处通过创立园林环卫品牌,摸索和建立了一套园林环卫长效管理机制.介绍了该管理机制和实施措施.     

东方人苯丙酮尿症的分子遗传学—苯丙氨酸羟化酶基因中一终止突变与单体型4的连锁不平衡性

应用聚合酶链反应(PCR)方法扩增苯丙氨酸羟化酶(PAH)基因的每个外显子及其侧翼的内含子,并克隆到M 13载体中进行序列分析。发现中国人苯丙酮尿症(Phenylketonuria,PKU)患者的PAH基因外显子3中有1个Arg~(111)→Ter~(111)的点突变,此突变与东方人最常见的突变单体型4呈连锁不平衡。此突变占中国人PAH等位基因的10％左右,但不存在于高加索人群中,表明在种族分化过程中PAH基因位点发生了互不相关的突变事件。