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1.
THEMOTIONPROPERTIESOFTHESTARSCONFINEDTOTHESYMMETRICAXISOFANOSCILLATIONKUZMINDISKFuYanning1,2)SunYisui1)(1)DepartmentofAstron...  相似文献   

2.
EXPERIMENTSTUDYONTHERELATIONSHIPBETWEENKINKANDMYLONITELuhuafu1)ShiHuosheng1)C.J.L.WILSON2)(1)DepartmentofEarthSciences,Nanji...  相似文献   

3.
LARGEPIEZORESISTANCEANDPRESSURE┐INDUCEDMETAL┐SEMICONDUCTORTRANSISTIONINTHEPEROVSKITE┐LIKELa┐Ar┐Mn┐OZhangNing1),2)DingWeiping...  相似文献   

4.
尼克刹米对三种果树花粉生活力的影响(简报)宋金耀刘永军孟庆祥牛春霞王玉芬(河北农业技术师范学院园艺系,昌黎,066600)EFFECTSOFNIKETHAMIDEONTHEPOLLENACTIVITIESOFAPPLE,PEACHANDPEAR(BU...  相似文献   

5.
ONTHEEXPONENTSETOFPRIMITIVELOCALLYSEMICOMPLETEDIGRAPHS¥ZhangKeming1);BuYuehua2)(1)DepartmentofMathcmaties,NanjingUniversity,N...  相似文献   

6.
不论数据库开发应用平台是何种版本,在关系型数据库的程序设计中,一般都需要有原始数据录入或者叫做基础数据采集等功能模块。在以往传统的编程模式中,基本上可以说都是采用逐条数据录入,对应FOX系统而言往往不是用AP-PEND(如 APPEND BLANK与SCAT MEMOMEMV、 GATH MEMO MEMV配合或者APPEFROM ARRA等等)就是用INSERT(如INSERTBLANK与SCAT MEMO MEMV、GATH MEMOMEMV配合或者INSERT INTO-SQL)相关的命令来实现原始…  相似文献   

7.
浅谈高校办公室督促检查工作吴中平(浙江水产学院院长办公室,舟山316101)ONSUPERVISIONANDINSPECTIONWORKOFHEADMASTER-OFFICEINCOLLEGEWuZhongping(ZhEjiangFisheries...  相似文献   

8.
当归注射液对兔主动脉平滑肌细胞中增殖细胞核抗?…   总被引:1,自引:0,他引:1  
目的:观察当归注射液地平滑肌细胞(SMC)中增殖细胞核抗原(PCNA)表达的影响。方法:E和免疫组织化学LSAB法检测培养的兔主动脉SMC中PCNA的表达,同时测定培养液中超氧化物歧化酶(SOD)、脂质过氧化物(LPO)、前列环素(PGI2)及环磷酸腺苷的含量。结果:当归注射液能增加SOD活性,降低LPO和升高PGI2、CAMP水平,抑制SMC中PCNA的表达。结论:当归有抑制SMC增殖的作用。  相似文献   

9.
重视泛读课课堂上的听说教学ATTACHIMPORTANCETOLISTENING-AND-SPEAKINGINSTRUCTIONINEXTENSIVEREADINGLECTURE刘雅儿LiuYa'er(浙江水产学院基础课部,舟山316101)(Zhe...  相似文献   

10.
葡萄抗感霜霉病品种三项生化指标的比较(简报)于凤鸣(河北农业技术师范学院园艺系,昌黎,06660COMPARISONAMONGTHREEBIOCHEMICALINDEXESOFGRAPECULTIVARSANTI-INFECTIONSTODOWNYM...  相似文献   

11.
电针对佐剂性关节炎大鼠炎症局部c-fos表达的影响   总被引:5,自引:0,他引:5  
目的:观察电针(EA)对炎症痛模型佐剂性关节炎(AA)大鼠炎症局部c-fos表达的影响,以探讨针刺对炎症痛的外周镇痛机制。方法:以福氏完全佐剂造成炎症痛模型AA、选取悬钟、昆仑穴EA治疗,采用免疫组织化学方法检测c-fos表达。结果:EA可以抑制AA大鼠炎症局部c-fos的表达。结论:c-fos可能参与了EA对炎症痛的外周镇痛作用。  相似文献   

12.
目的:观察不同间隔时间电针对佐剂性关节炎(AA)大鼠的镇痛效应,以探讨针刺镇痛的最佳间隔时间和作用机制。方法:将96只大鼠随机分为对照组、模型组和电针组,每组再分为3 h、6 h、12 h和24 h小组,以Freund’s完全佐剂造成AA大鼠模型,电针选取悬钟和昆仑穴,分别以3 h、6 h、12 h和24 h作为治疗间隔时间,连续治疗6 d,以痛阈、炎症局部前阿黑皮素(POMC)mRNA和前脑啡肽原(PENK)mRNA表达作为观察指标。结果:间隔24 h电针能显著提高AA大鼠的痛阈;不同间隔时间电针均能促进炎症局部POMC mRNA和PENK mRNA的表达。结论:间隔24 h电针可明显提高对AA大鼠的镇痛效应;不同间隔时间电针镇痛效应与促进炎症局部阿片肽基因表达有关。  相似文献   

13.
通过对天然沉积原状土和重塑土进行不同排水距离的固结试验,研究了重塑土和原状土的EOP压缩性状,明确了两者性状不同的原因.对于天然沉积结构性土,当固结压力小于结构屈服压力时,土结构性抵抗了土体的变形趋势,蠕动变形甚微,排水路径对其主固结应变量影响不大;当土体处于临界屈服状态时,土结构性丧失,大孔隙坍塌,蠕动变形速率骤增,外加应力引起固结作用而产生的EOP变形量将由于土体较大的蠕交作用而对排水路径产生较大的依赖性,随着固结压力的增大,依赖性逐渐减弱.对于重塑土,排水路径和应力水平对EOP性状的影响规律与原状土屈服后的性状一致,但是由于其EOP压缩曲线位于原状土的下方,相同有效应力下具有较小的孔隙骨架,排水路径和应力水平对EOP性状的影响程度较原状土小.  相似文献   

14.
Liu  Suxing  Luo  Fei  Shen  Shang  Yu  Yingxin  Han  Jisheng 《科学通报(英文版)》1999,44(3):240-240
There exists significant individual variation in electroacupuncture (EA) induced analgesia. Rats may be classified as high- and lowresponders according to their response to EA analgesia. The content of cholecystokinin octapeptide like immunoreactivity (CCK-8-ir) in the spinal perfusate of highresponder (HR) and low-responder (LR) rats was measured with radioimmunoassay. The result showed that the CCK-8-ir content in LR rats was significantly lower than that in HR rats. There exists a negative correlation between the EA effect and the CCK-8-ir content during EA stimulation. It is concluded that the spinal release of CCK-8 may be one of the key factors determining the effect of EA analgesia.  相似文献   

15.
(i) The structure and function of the meridian (channel and collateral) described by ancient medical doctors may correspond to the blood circulation, nerve control and neurohumoral modulation of modern medicine. (ii) The needling, which can injure the tissue, is a noxious stimulation inducing pain. Acupuncture manipulation, such as lifting and thrusting, twisting and twirling, or electroacupuncture (EA) with the sufferable biggest intensity for patients should be a stronger pain stimulation. The needling sensation of soreness, numbness, distension and heaviness is a deep pain. (iii) There is an intrinsic analgesic system in brain, which centers around the periventricular and periaqueductal grey matter, contains endorphins as possible mediators, goes through the descending inhibition system in medulla oblon-gata, and acts on the gating mechanism in spinal cord. Itcould be producing analgesia while the system is activated. (iv) NRM might be a supraspinal center modulating pain, and the R-S neurons could form a basic circuit of negative feedback modulating pain. The discovery of excitatory-inhibitory reversible R-S neurons may give a neuro-physiological explanation for the double direction modulation of acupuncture at acupoint. (v) Non-noxious stimulation such as massage or stroking could excite type I and n afferent fibers, producing a weaker and transient analgesia through the spinal mechanism. When the acupoint is near the pain area, the afferent information from them could be converged on the same and neighboring spinal segments, the light acupuncture or low intensity of EA also has analgesic effects, showing acupoint specificity. But the acupoint specificity is not limited in a specially designated channel line, and it is closely related to the segment of innervation. (vi) While acupuncture manipulation of lifting and thrusting, twisting and twirling or a high intensity of EA is used, because the intensities of these stimulations exceed the threshold of afferent C fibers, they could fully excite Ⅲ(Aδ) and Ⅳ (C) afferent fibers, producing a strong and lasting analgesia, mainly through the supraspinal negative feedback mechanism modulating pain, it has curative effects. Therefore, the essence of acupuncture analgesia may chiefly be inhibiting pain with pain.  相似文献   

16.
复方天麻制剂外周镇痛机理研究   总被引:1,自引:0,他引:1  
探讨复方天麻制剂外周镇痛机理,即对神经递质和c-fos基因表达的影响.以福氏完全佐剂制作慢性疼痛模型,高效液相色谱法测定血清中5-HTP、5-HI AA含量,免疫组织化学法检查外周组织c-fos的表达.实验结果表明,复方天麻制剂降低血清5-HTP、5-HI AA含量,抑制外周组织c-fos表达;通过降低血清吲哚类神经递质含量,抑制疼痛基因表达达到外周镇痛作用.  相似文献   

17.
Li  Li  Zhai  Qiwei  Tang  Wei  Wu  Tong  Zheng  Zhongcheng  Liu  Xinyuan 《科学通报(英文版)》1999,44(3):243-243
Interferon-α (IFN-α) and interleukin-2 (IL-2) are crucial cytokines in immune system. They also play an important role in nerve system. It has been reported that IL-2 can induce the central analgesia. It is demonstrated that IFN-α also can induce the peripheral analgesia, which can be blocked by naloxone as IL-2. Furthermore, the analgesic effect of IFN-α is reversible by monoclonal anti-IL-2 antibody. In vitro experiments show that IFN-α significantly increases the production of IL-2 in a dose dependent manner. These data suggest that IL-2 mediates the peripheral analgesia of IFN-α.  相似文献   

18.
本文探讨全膝关节置换术(TKA)围手术期镇痛效果和早期康复方法,采用术前进行患者心理辅导和术前塞来昔布400mg分6次口服镇痛,术中彻底切除滑膜和脂肪垫组织,术后多模式镇痛,系统的功能锻炼计划等进行综合分析研究。结果表明本方案具有明显的镇痛效果,并且秩序渐进的康复计划取得了明显的效果,对于TKA围手术期的综合镇痛和早期康复具有重要意义。  相似文献   

19.
研究发现硫酸镁能降低中枢神经系统对疼痛的敏感性,降低外周神经系统对伤害性刺激的反应性,可缩短全麻药异丙酚麻醉诱导时间,可明显减少麻醉镇痛药物和肌松药的用量,延长术后镇痛有效时间。  相似文献   

20.
毕瑞芸 《科学技术与工程》2012,12(24):5980-5984
本文通过观察实验性颞下颌关节炎症是否影响大鼠三叉神经节钠离子通道1.8(Nav1.8)mRNA的表达及其在雌、雄大鼠的表达有否差异,探讨钠离子通道是否参与调控颞下颌关节炎性痛及其性别差异。通过注射完全弗氏佐剂于SD大鼠颞下颌关节上腔建立颞下颌关节炎症模型,采用组织病理学手段确认关节炎症;通过测量摆头阈值及2小时进食量评估大鼠疼痛行为学的改变,采用实时荧光定量PCR方法评估三叉神经节Nav1.8 mRNA变化。结果显示,诱导颞下颌关节炎症24小时后,滑膜组织出现增生、炎细胞浸润及血管增生等滑膜炎特征;摆头阈值及2小时进食量明显降低,且雌性摆头阈值及2小时进食量低于雄性;同时三叉神经节Nav1.8 mRNA出现上调,且雌性Nav1.8 mRNA上调幅度高于雄性。这些结果提示,三叉神经节Nav1.8可能参与调控颞下颌关节炎性痛以及其性别差异,为进一步理解颞下颌关节紊乱病相关疼痛及其性别差异提供实验依据。  相似文献   

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