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猫半规管破坏后线性加速度作用下耳石反应特点  [PDF]
裴静琛,严亦蔼,王玉清,李秀雯
空间科学学报 , 1988,
Abstract: 本文研究线性加速度作用下,猫半规管阻塞前后前庭-眼动反射、前庭-脊髓反射和姿态平衡的反应特性。发现猫手术前和双侧半规管阻塞后耳石-眼动反应的功率谱和相对增益无显著性差异,脊髓反射H波幅变化在不同加速度刺激下有相似的反应模式。单侧半规管阻塞后,前庭-眼动反射表现明显不对称,H波幅改变与线性加速度无关,反映出半规管功能不对称也引起耳石功能不对称。本文提出潜在性耳石半规管功能不平衡可能是空间前庭功能障碍的重要原因。
数值模拟人内耳半规管膜迷路的机械压痕实验  [PDF]
赵伟,沈双,孙秀珍,刘迎曦
工程力学 , 2014,
Abstract: 该实验数值模拟机械压痕实验,研究机械压痕激励下人半规管膜迷路壶腹嵴顶的位移响应,探求半规管结构和平衡机理的关系。基于文献实验结果数据,建立人半规管膜迷路的三维弹性流体动力学模型,采用液固耦合方法数值模拟机械压痕实验过程。研究结果表明:低频正弦压痕载荷时(<10/Hz),半规管整合激励产生的嵴顶位移响应与压痕峰值线性相关,相位相同。低频范围内的正弦压痕载荷,频率越低,水平半规管嵴顶位移峰值衰减速度越快,衰减比例大,趋于稳定时间越长。该实验建立了有效的半规管膜迷路液固耦合模型,描述了机械压痕激励与旋转激励的定量关系,为深入研究前庭力学及理解平衡机理奠定一定的基础。
两种手法复位治疗后半规管良性阵发性位置性眩晕  [PDF]
董钏,王杰,李莹,刘国旗,付启红,蔡艳,蒋振华
华西医学 , 2012,
Abstract: 目的 探讨管石复位法(Epley法)和嵴顶耳石解脱法(Semont法)两种手法复位治疗后半规管良性阵发性位置性眩晕(BPPV)患者的疗效。方法 收集2009年9月-2011年1月就诊的后半规管BPPV患者60例,依据随机数字表法平均分配到两个治疗组,分别采用Epley法和Semont法进行治疗,观察患者眩晕改善情况,并随访3~12个月。结果 两种方法的治愈有效率在治疗后1、2、3周,3个月时差异无统计学意义(P>0.05)。所有患者随访3~12个月,均无复发,治疗后均无不良反应。结论 两种方法治愈有效率相近。治疗时可先选用Epley法,疗效不佳,再选择Semont法。
多频稳态诱发电位分析后半规管瘘对豚鼠听力及耳蜗形态学结构的影响  [PDF]
谢南屏,陈国强,严星,舒斯云
南方医科大学学报 , 2006,
Abstract: 目的探讨豚鼠后半规管造瘘后的听力情况。方法健康杂色豚鼠10只,左耳为实验耳,右耳为对照耳,左耳后半规管造瘘后分别进行多频听觉稳态诱发电位测试。测试状态为戊巴比妥钠镇静睡眠。结果载波频率为0.5khz、1khz、2khz及4khz时,左耳多频听觉稳态诱发反应阈(dbspl)分别为30.00±8.66、25.56±5.27、20.00±5.00和22.22±4.21;右耳分别为35.56±5.27、27.78±10.93、18.89±3.33和21.11±3.33。左右耳同频率之间差异无统计学意义。结论单纯手术造成的较小的后半规管瘘管对听力无明显影响。?
视频头脉冲试验检测前庭神经炎急性期半规管的受损情况及其恢复特点的应用  [PDF]
陈瑛,庄建华,李斐,周晓闻
- , 2018, DOI: 10.16781/j.0258-879x.2018.01.0097
Abstract: 目的 探讨应用视频头脉冲试验检查前庭神经炎急性期半规管的受损情况及受损半规管的恢复特点。方法 对2015年3月至2016年3月间第二军医大学长征医院神经内科确诊的28例急性前庭神经炎患者进行临床分析及定期随访,应用视频头脉冲试验检查各半规管功能的受损和恢复情况。结果 在发病急性期,28例(100.00%)患者均存在水平半规管功能异常,24例(85.71%)存在前半规管功能异常,4例(14.29%)存在后半规管功能异常。发病2个月后随访显示,发病时水平半规管受损严重(增益值<0.5)者随访时增益值均未恢复正常,而发病时受损相对较轻(增益值为0.5~0.8)者中80.00%(12/15)的患者随访时恢复正常;发病时前半规管受损严重(增益值<0.5)者中82.35%(14/17)的患者随访时增益值未恢复正常,而发病时受损相对较轻(增益值为0.5~0.7)者随访时均恢复正常。结论 在前庭神经炎中前庭上神经支配半规管受损多于前庭下神经支配的半规管,视频头脉冲试验适用于受损半规管的检测和随访。受损半规管的恢复程度与发病时受损的严重程度有关。
Objective To investigate the application of video head impulse test in detecting the impairment of semicircular canal of patients with acute vestibular neuritis and the recovery features of the damaged semicircular canal. Methods The clinical data of 28 patients with acute vestibular neuritis, who were diagnosed in the Department of Neurology, Changzheng Hospital, Second Military Medical University from Mar. 2015 to Mar. 2016, were analyzed and regularly followed up. The damage and recovery of each semicircular canal function were evaluated by video head impulse test. Results During the onset period, the horizontal semicircular canal function was abnormal in 28 patients (100.00%), the anterior semicircular canal function was abnormal in 24 cases (85.71%), and the posterior semicircular canal function was abnormal in 4 cases (14.29%). After 2 months of follow-up, the gain of the patients with severe damage of horizontal semicircular canal (gain<0.5) at onset did not return to normal, while that of 80.00% (12/15) of the patients with less damage of horizontal semicircular canal (gain ranged from 0.5 to 0.8) recovered; 82.35% (14/17) of the patients with severe damage of anterior semicircular canal (gain<0.5) at onset did not recover, while that of the patients with less damage of anterior semicircular canal (gain ranged from 0.5 to 0.7) returned to normal. Conclusion In patients with vestibular neuritis, the damage of semicircular canal dominated by superior vestibular nerve is more severe than that dominated by inferior vestibular nerve. Video head impulse test is suitable for the detection and follow-up of the function of impaired semicircular canal. The recovery of impaired semicircular canal is related to its severity at onset
单侧特发性后半规管良性阵发性位置性眩晕的病例特征分析  [PDF]
陈钢钢,樊辉如,高伟,张春明,郑智英,皇甫辉,于文永,温树信,张芩娜,杨向茹,张海利,王建明,王娜,王斌全
- , 2017, DOI: 10.16781/j.0258-879x.2017.11.1379
Abstract: 目的 分析单侧特发性后半规管良性阵发性位置性眩晕患者的病例特征。方法 总结分析2013年11月至2015年2月在山西医科大学第一医院诊治的214例单侧特发性后半规管良性阵发性位置性眩晕患者的病例特点。结果 单侧特发性后半规管良性阵发性位置性眩晕患者Dix-Hallpike试验时的眼震平均潜伏期为(2.02±1.19)s,平均持续时间为(21.3±14.5)s,其眼震平均潜伏期、平均持续时间均无性别、年龄差异。184例(86.0%)患者1~2次Dix-Hallpike试验即可诱发出典型眼震。162例(75.7%)患者在醒后起床时或夜间睡眠翻身时首次发病。51例(23.8%)患者出现反转相眼震。患者痊愈率为88.3%(189/214),有效率为98.1%(210/214)。14例(6.5%)患者复位后出现耳石转管现象,67例(31.9%)患者复位后残留头晕或走路不稳症状。210例治疗有效的患者中,1、3、6、12、18个月电话随访时复发率分别为0(0/210,0例失访)、5.7%(12/210,0例失访)、8.7%(18/208,2例失访)、11.8%(23/195,15例失访)、17.4%(31/178,32例失访)。结论 单侧特发性后半规管良性阵发性位置性眩晕患者首次发病的高发时段为醒后起床时或夜间睡眠翻身时。大部分患者经过Epley法复位治疗后可痊愈,但长期疗效仍需继续随访观察。
Objective To analyze the clinical characteristics of patients with unilateral idiopathic posterior canal-benign paroxysmal positional vertigo (PC-BPPV). Methods We retrospectively analyzed and summarized the clinical characteristics of 214 patients with unilateral idiopathic PC-BPPV who were diagnosed in the First Hospital of Shanxi Medical University from Nov. 2013 to Feb. 2015. Results In the Dix-Hallpike displacement test (D-H test), the average latency of nystagmus in patients with unilateral idiopathic PC-BPPV was (2.02±1.19) s, and the average duration was (21.3±14.5) s. There were no gender or age differences in the latency or duration of nystagmus. Typical nystagmus was induced in 184 cases (86.0%) by one or two D-H tests. The first onset time of 162 cases (75.7%) was in wake up or sleep-tuning at night. Fifty-one cases (23.8%) displayed the reversal phase of nystagmus. The cure rate of patients was 88.3%, and the effective rate was 98.1%. Among 210 patients sensitive to treatment, the recurrence rates were 0 (0/210, 0 case lost to follow-up), 5.7% (12/210, 0), 8.7% (18/208, 2), 11.8% (23/195, 15) and 17.4% (31/178, 32) on 1st, 3rd, 6th, 12th and 18th month, respectively. Forteen cases (6.5%) had canal switch phenomenon after reduction, and 67 cases (31.9%) had residual dizziness or unstable symptoms after reduction. Conclusion The most common first onset time of patients with unilateral idiopathic PC-BPPV is in wake up or sleep-tuning at night. Most patients can be cured by Epley method, but the long-term efficacy still need follow-up observation
以理义悦其心:岳麓书院学规对当代高校学生 手册的启示
Being Pleasured by Reason and Justice: The Enlightenment of School Regulations of Yuelu Academy to Contemporary Student Handbook of University
 [PDF]

李盛幸,姜正国
- , 2016,
Abstract: 岳麓书院学规,虽几经流变,却一直“以理义悦其心”为 特点,具体体现在以“理义”为核心,以讲究求道、择良友、贵笃 行为核心,激发学生内心向善的本性;以“徽言”为载体,讲究 以温婉劝勉式的语言表达对学生的尊敬与诚意,使学生易于从 心底接受;并最终以“悦其心”为目的,培养了大批爱国、为民的 思想家。这为当代高校学生手册提供了启示:核心理念的转变, 即由从上而下的管理者到“以理义悦其心”的引导者;内容的转 变,即由重智育、行为规范的内容转变为加强德育的内容;话语 的转变,即由严肃刻板的语言转变为温婉劝勉式的语言等。
Although the school regulations of Yuelu Academy have been changed for several times, it were always featured by “pleasured by reason and justice”. In detail, it used “reason and justice” for core, which means using seeking Tao, selecting good companion, practicing sincerely for core to stimulate students’ nature of goodness. It used “tactful expressions” for carrier, which means using mild and advising words to express the esteem and sincerity of students. It used “pleasing students” for purpose, cultivating a lot of patriotic thinkers. All those enlighten the Student Handbook of university nowadays, such as the transformation of core idea, contents, expression, etc.
河南平顶山应国墓地出土料珠和料管的分析  [PDF]
干福熹,胡永庆,董俊卿,王龙正,承焕生
硅酸盐学报 , 2009,
Abstract: 为了探明我国早期(西周至春秋时期)料珠和料管的材质和制作方法,利用外束质子激发X射线荧光、X射线衍射、激光Raman光谱及扫描电子显微镜等测量技术,对河南省平顶山应国墓地出土的西周早期至春秋早期的料珠和料管进行了系统地分析研究。结果表明西周早期的料珠是发生了晶态转变为非晶态、非晶态包裹晶态现象的硅酸镁质玉石,而西周中期至春秋早期料珠和料管系人工用较纯的石英砂添加少量青铜冶炼后的炉渣或矿渣,在低温(700~800℃)烧制而成的釉砂(石英砂,faience),是古玻璃的前身。此前一般笼统地认为中国釉砂起源于西周至春秋时期,截至目前中国釉砂最早可追溯到西周中期。
非稳态轴对称度规的坐标变换  [PDF]
张镇九
科学通报 , 1986,
Abstract: 非稳态轴对称度规可表为
关于?粒??理???之??  [PDF]
?云龙
地质与勘探 , 1957,
Abstract: 关于?粒?进之原理??,目前还?有一个完整?点。苏联也正在进行??。几年?,虽然我?在?探效率上、?量上,有了?大的提高,但在理论上仍然是落后的。为了改变这一情况,有必要在?粒?进的理?研究上,进行一番??时?的??研究工作,以便用技术理?去指导实际工作,进一步提高?探工作的技术水平。目前?粒?进理?,虽然还?有获得?一的?点,然而基本上是在下边三种说法中进行??:第一种主?是:未被破碎的?粒,在?心压力的参助下对岩石压碎和碾磨;第二种主?是:已被破碎之?粒在?心压力的作
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