医院固定资产管理存在的问题及对策

目前,医院的固定资产管理中存在着：一是责权问题,即账物不清,产权不清,移交不清。二是工作制度问题,即账反映不真实、残值不入账、盘盈盘亏处理不当、盲目购置等。解决上述问题的策略：①做好产权的界定和登记;②建立有效的管理机构;③完善和实施各项固定资产管理的制度。     

肱骨外髁的生物力学实验研究及其临床应用

目的 :从生物力学角度探讨肱骨外髁骨折的发生机制和固定方法。方法 :通过电测实验法、三维光弹实验法 ,空间有限元分析法 ,研究肱骨外髁在各种体位下的受力情况和复位固定方法 ,三种实验方法互为验证 ,并应用于临床。结果 :66例肱骨外髁翻转骨折病人 ,经治疗优良率达 90 .9%。结论 :肱骨外髁骨折好发于肘关节半屈曲位跌倒 ,和肘关节伸直内翻位跌倒。骨折复位后固定在屈肘 60°～ 90°前臂旋后位最为稳定。本实验结论具有推广应用价值。     

Sensorless flow and head estimation in the VentrAssist rotary blood pump

Flow rate and pressure difference (or head) are key variables needed in the control of implantable rotary blood pumps. However, use of flow and/or pressure probes can decrease reliability and increase system power consumption and expense. For a given fluid viscosity, the flow state is determined by any 2 of the 4 pump variables: Flow, pressure difference, speed, and motor input power can be used. Thus, if viscosity is known or if its influence is sufficiently small, flow rate and pressure difference can be estimated from the motor speed and motor input power. For the VentrAssist centrifugal blood pump, which uses a hydrodynamic bearing, sensorless flow and pressure head estimation accuracy of 2 of our impeller designs were compared for a viscosity range of 1.2 to 4.5 mPas. This showed impeller design optimization can improve estimation accuracy. We also compared estimation accuracy using 2 blood analogues used in vitro, aqueous glycerol and red blood cells suspended in Haemaccel. The nature of the blood analogue and not only the viscosity of the fluid seems to influence estimation accuracy in our pump.     

输卵管妊娠保留输卵管手术后综合疗法的宫内妊娠探讨

对输卵管妊娠52例有生育要求者，其中28例行切开输卵管壶腹部取胚胎术，10例行输卵管峡部破裂口修补术，7例行输卵管伞部成形术，5例行输卵管峡部端端吻合术，2例行输卵管子宫角部植入术。术后给MTX与中药等综合治疗2～5个月，对其中45例行输卵管通畅检查，双侧输卵管通畅4O例，通畅率为88.9％；有41例宫内妊娠，妊娠率为78.9％，另有1例再次异位妊娠。提示：对有生育要求的输卵管妊娠尽量根据输卵管的不同情况采用相应的手术方法，并应用有效的术后综合措施，对保留患者的生育功能和提高妊娠率有重要意义。     

试论新形势下高校固定资产管理中存在的问题及解决办法

高校的固定资产是国有资产的重要组成部分。随着我国高等教育事业的发展,高校固定资产大幅度增加,构成也日趋复杂,高校固定资产在管理上存在的问题也越来越明显。主要对高校固定资产管理方面存在的问题提出相应的解决办法,从而进一步推动高校固定资产管理工作,使之更加适应学校发展的要求。     

生殖道感染干预工程对农村生殖道感染妇女就医行为影响的研究

目的:评价生殖道感染干预工程对农村生殖道感染妇女就医行为的干预效果。方法:对江西省4个县随机抽取的12个乡的12个行政村进行基线调查后实施干预,干预过程中重复进行4次问卷调查、妇科检查和实验室检测,另选取这4个县的一个行政村作为对照,观察方法同干预组。全部数据应用Epidata2.0建库管理,用SPSS10.0及SAS6.12软件进行统计分析。结果:已婚育龄妇女生殖道感染症状现患率及患者无症状比例下降,就医率由干预前31·5%上升为69·0%,较对照组39·6%有明显提高,且立即就诊比例由第一次干预时的46·7%升高到第4次干预时的75·6%,患者的治愈率、好转率大幅度提高。结论:生殖道感染的干预改善了农村已婚育龄妇女的就医行为,提高了就诊率和治愈率。     

1980例孕中晚期胎儿彩色多普勒超声检查结果回顾性分析

目的:利用彩色多普勒超声筛查孕中晚期胎儿异常或畸形,降低围产死亡率,提高人口出生质量。方法:对我院2002年1月至2005年3月1980例孕中晚期胎儿彩色多普勒超声检查结果回顾性分析。结果:检出胎儿畸形45例,死胎12例,低置胎盘24例,38周～42周胎位不正51例、脐绕颈316例。其中绝大多数在本院或外院引产证实,少数经过尸解证实。结论:彩色多普勒超声可发现大多数的胎儿形态结构异常,使一些致死性的畸形及早终止妊娠,非致死性的异常或畸形有了选择的空间;在提高人的出生质量上彩色多普勒超声起着不可或缺的作用,而且越来越显现出其独特的功能所在。     

预负荷系数对三油楔径向滑动轴承稳定性的影响

以三油楔径向滑动轴承为研究对象,采用M atlab语言进行编程,对二维R eyno lds方程离散化数值求解,探讨了预负荷系数对三油楔径向滑动轴承稳定性的影响。得出了三油楔径向滑动轴承稳定性在不同偏心率和宽径比下随轴承预负荷系数的变化而变化的一系列规律性曲线,并进行了理论分析。     

外固定器治疗肢体骨折112例临床报告

目的总结外固定器治疗四肢骨折的特点及经验教训,为临床应用提供一种行之有效的方法。方法四肢骨折患者共112例,年龄13￣93岁,均为长骨骨折。固定时间最长8个月,最短2个月。结果延迟愈合3例,钉松动2例,无严重感染病例。结论骨外固定器是一种接近微创的骨复位固定技术,属生物学弹性固定,可提供早期关节肌肉功能练习,不会引起骨严重感染,是一种治疗四肢骨折尤其开放性、粉碎性骨折的好方法,在治疗骨不愈合、骨缺损、骨短缩、骨感染等方面有很好的应用前景。     

Interactions of chronic lead exposure and intermittent stress: consequences for brain catecholamine systems and associated behaviors and HPA axis function.

Elevated lead (Pb) burden and high stress levels are co-occurring risk factors in low socioeconomic status (SES) children. Our previous work demonstrated that maternal Pb exposure can permanently alter hypothalamic-pituitary-adrenal (HPA) axis function and responsivity to stress challenges in offspring. The current study sought to determine the consequences of chronic Pb exposures initiated later in development combined with variable intermittent stress challenges. Male rats were exposed chronically from weaning to 0, 50, or 150 ppm Pb acetate drinking solutions (producing blood Pb levels of <5, 9-15, and 23-27 mug/dl, respectively). Pb itself decreased basal plasma corticosterone, with greater effects at 50 than 150 ppm; 150 ppm reduced both cytosolic and nuclear glucocorticoid receptor binding. Responsivity to stress challenges including novelty, cold, and restraint, was measured as changes in Fixed Interval (FI) schedule-controlled behavior in a subset of rats within each group. FI performance was modified by novelty stress only in Pb-treated rats, whereas cold and restraint stress effects were comparable across groups. Novelty elevated corticosterone equivalently across groups, but cold stress markedly increased corticosterone only in Pb-treated groups. The pattern of Pb-induced changes in serotonin (5-HT) or its metabolite 5-HIAA in frontal cortex, nucleus accumbens, striatum, and hypothalamus resembled that observed for basal corticosterone levels indicating a relationship between these variables. In addition to suggesting the potential for HPA axis-mediated effects of Pb on the central nervous system, these findings also raise questions about whether single chemicals studied in isolation from other relevant risk factors can adequately identify neurotoxic hazards.