股骨颈骨折几种闭合复位方法的评价(译文)

在股骨颈移位骨折的治疗中,试用了7种不同的闭合复位方法。其中Whitman's法在骨折床台上进行,正常肢体外展,患肢由屈曲牵引至完全伸直位后,维持牵引并外展到与对侧肢体相称位,单髋人字石膏外固定(1914年)。 Leadbetter's法也在骨折床台上进行。将患肢髋部屈曲90°,沿大腿轴线行手法牵引。同时股骨干稍内收,患肢缓慢行环形活动至外展、内旋位,患肢向下降至骨折床台面时,行跟掌试验以验证是否完全复位(1933年)。 Bozan's法利用骨折床台使双下肢维持在伸直位,大绷带放置在患肢髂嵴部位,小绷带放置在患肢腹股沟皱襞最高点处实施牵引。然后整个患肢极度内旋,在维持侧方牵引的同时,患肢外展并轻度过牵(1934年)。     

消瘀散消肿止痛作用的实验观察

消瘀散在临床运用中有较好的消肿止痛之功效．为了证实其药理作用，作者用大白鼠建立急性软组织损伤和血肿的实验模型，使用消疾散进行治疗。观察结果表明该药能够有效抑制创伤性无菌性炎症反应，促进血肿吸收，提高实验动物的痛阈值；而且药效随作用时间的延长而逐渐增加。实验结果为该药的消肿止痛作用提供了科学依据。     

双柏散抗炎作用及其有效部位的研究

本文依照抗炎药筛选规程,在多种炎症模型中证实双柏散对急、慢性炎症都具有良好的治疗作用。能显著抑制大鼠足跖肿胀,抑制毛细血管通透性,抑制炎症细胞游走,抑制肉芽肿形成(P<0.05～0.001),双柏散无明显毒副作用,腹腔注射LD50为15.3bg/kg体重。同时,双柏散抗炎作用随溶剂极性的增加而增强,以水提液的抗炎效果最好。     

Concentration Fluctuations and Segmental Dynamics in Weakly Dynamic Asymmetric Blends in the Presence of Surface‐Functionalized Multiwall Carbon Nanotubes

Surface‐functionalized multiwall carbon nanotubes (MWCNTs) are incorporated in poly(methyl methacrylate)/styrene acrylonitrile (PMMA/SAN) blends and the pretransitional regime is monitored in situ by melt rheology and dielectric spectroscopy. As the blends exhibit weak dynamic asymmetry, the obvious transitions in the melt rheology due to thermal concentration fluctuations are weak. This is further supported by the weak temperature dependence of the correlation length (ξ ≈ 10–12 Å) in the vicinity of demixing. Hence, various rheological techniques in both the temperature and frequency domains are adopted to evaluate the demixing temperature. The spinodal decomposition temperature is manifested in an increase in the miscibility gap in the presence of MWCNTs. Furthermore, MWCNTs lead to a significant slowdown of the segmental dynamics in the blends. Thermally induced phase separation in the PMMA/SAN blends lead to selective localization of MWCNTs in the PMMA phase. This further manifests itself in a significant increase in the melt conductivity.

     

Electrophysiological correlates of the retention of tones differing in timbre in auditory short-term memory

We examined the electrophysiological correlates of retention in auditory short-term memory (ASTM) for sequences of one, two, or three tones differing in timbre but having the same pitch. We focused on event-related potentials (ERPs) during the retention interval and revealed a sustained fronto-central ERP component (most likely a sustained anterior negativity; SAN) that became more negative as memory load increased. Our results are consistent with recent ERP studies on the retention of pitch and suggest that the SAN reflects brain activity mediating the low-level retention of basic acoustic features in ASTM. The present work shows that the retention of timbre shares common features with the retention of pitch, hence supporting the notion that the retention of basic sensory features is an active process that recruits modality-specific brain areas.     

逍遥散和丹栀逍遥散抗焦虑作用的实验研究

【目的】探讨逍遥散、丹栀逍遥散的抗焦虑作用。【方法】Wistar大鼠随机分为5组:模型对照组、丹栀逍遥散高剂量组(剂量为14.4 g/kg)、丹栀逍遥散低剂量组(剂量为7.2 g/kg)、逍遥散高剂量组(剂量为21.06 g/kg)、逍遥散低剂量组(剂量为10.53 g/kg),采用群居接触模型及旷场实验模型观察逍遥散和丹栀逍遥散对模型大鼠的抗焦虑作用。模型组灌服生理盐水,其他组灌服相应剂量的药物,连续14 d后,由2名观察者观察大鼠在5 min内的活动情况并记录结果,取其平均值。【结果】丹栀逍遥散高、低剂量组均能增加群居接触时间,增加大鼠竖起或修饰次数,逍遥散低剂量组可增加大鼠竖起或修饰次数(P<0.05或P<0.01)。【结论】逍遥散和丹栀逍遥散均具有一定的抗焦虑作用,以丹栀逍遥散作用更佳。     

张氏接骨散对骨折愈合影响的X线和血尿生化学的临床研究

将５６例骨折患者随机分为三组，从症体征、Ｘ线摄片、血尿生化学检查等几个方面，对照观察了张氏接骨散对骨折愈合的影响，结果表明，在临床症状消失，骨痂生长和新生骨质形成，碱性磷酸酶浓度与活性，体内胶原总转换率，骨折临床愈合时间等方面，试验组均优于对照组（Ｐ＜０．０５、Ｐ＜０．０１），提示该方能明显促进骨折愈合。     

Electrophysiological correlates of the maintenance of the representation of pitch objects in acoustic short-term memory

We studied the neuronal mechanisms that implement acoustic short-term memory (ASTM) for pitch using event-related potentials (ERP). Experiment 1 isolated an ERP component, the sustained anterior negativity (SAN), that increased in amplitude with increasing memory load in ASTM using stimuli with equal duration at all memory loads. The SAN load effect found in Experiment 1, when pitch had to be remembered to perform the task, was absent in Experiment 2 using the same sounds when memory was not required. In Experiment 3, the memory task was performed without or with concurrent articulatory suppression during the retention interval to prevent rehearsal via an articulatory loop. Load-related effects observed in Experiment 1 were found again, whether participants engaged in concurrent suppression or not. The results suggest that the SAN reflects activity required to maintain pitch objects in an ASTM system that is distinct from articulatory rehearsal.     

“军卫一号”HIS的高可靠性体系结构设计与比较

目的：为提高HIS核心数据库服务器系统的可靠性,提出改进服务器系统结构的方案。方法：设计、分析基于共享存储的双机热备系统、基于独立存储的双机热备系统、基于独立存储的全冗余系统的服务器体系结构。结果：采用小型机替代PCServer．磁盘阵列的数据存储方式由SAN替代RAID-5,并通过镜像复制备份的解决方案实现数据的实时热备份。增加了系统的可靠性及数据的安全性。结论：基于独立存储的全冗余系统结构,能有效地提高“军卫一号”HIS系统的可靠性。     

医院信息系统集成设计与实现

浙江省肿瘤医院已基本完成全院信息化,在内网建立了基于SAN架构的数据存储和备份系统,专门用于医院PACS、HIS以及电子病历等主要医疗信息业务。现根据医院信息系统集成建设实例,阐述基于SAN架构数据存储、备份系统的设计与实现方案,并提出一些改进设计建议,以期给医疗信息的同行一些启示。