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Transmastoid resurfacing versus middle fossa plugging for repair of superior canal dehiscence:Comparison of techniques from a retrospective cohort

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World Journal of Otorhinolaryngology-Head and Neck Surgery 2016年第3期2卷 -页

作者： Brian Rodgers jim lin Hinrich Staecker Michigan Ear Institute Farmington Hills MI 48334 USA Department of 0tolaryngology Head and Neck Surgery University of Kansas School of Medicine KS 66061 USA

UNASSIGNED:To compare and contrast our experience with middle cranial fossa approach (MFR) and transmastoid approach with capping of the dehiscence (TMR) of superior semicircular canal dehiscence and to determine guidelines to help guide management of these patients.;UNASSIGNED:All patients from 2005 to 2014 with symptomatic superior semicircular canal dehiscence syndrome with dehiscence demonstrated on CT scan of the temporal bone who underwent surgical repair and had a minimum 3 months of follow up. Surgical repair via the MFR or TMR, preoperative CT temporal bone, preoperative, and postoperative cervical vestibular evoked myogenic potential (cVEMP) testing and anterior canal video head thrust testing (vHIT). Success of repair was stratified as complete success, moderate success, mild success, or failure based on resolution of all symptoms, the chief complaint, some symptoms, or no improvement, respectively.;UNASSIGNED:A total of 29 ears in 27 patients underwent surgical repair of canal dehiscence. Complete or moderate success was seen in 71% of the MFR group compared to 80% of the TMR group. There were zero failures with the MFR group and no major intracranial complications. There were 2 failures out of 15 ears that underwent the TMR. Residual symptoms were most commonly vertigo or disequilibrium in the MFR and aural fullness or autophony in the TMR groups, respectively. MFR hospital stay was approximately 2 days longer. Average cVEMP threshold shifted 18 dB with surgical correction in the MFR group. A 29 dB average shift was seen in the TMR group. The MFR group had a significant reduction in their anterior canal gain compared to the TMR group.;UNASSIGNED:TMR is a less invasive alternative to MFR. However, in our series, we have not seen any intracranial complications (aphasia, stroke, seizures, etc.) in our MFR patients. Interestingly, vestibular symptoms were better addressed than audiological symptoms by the TMR suggesting its usefulness as a less invasive option for patients with primarily vestibular compl

关键词： Cartilage graft Middle fossa Plugging Superior canal dehiscence Transmastoid

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二硫化碳作为谷物熏蒸剂的新观点

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粮油食品科技 2024年第3期32卷 1-15页

作者： jim DESMARCHELIER Yu XIAO Li GU Yong-lin REN 李燕羽(译) 默多克大学环境和生命科学学院澳大利亚珀斯WA 6150 国家粮食和物资储备局科学研究院粮食储运研究所

虽然二硫化碳(CS_(2))是一种古老的熏蒸剂,但澳大利亚新数据以及中国和埃及已发表的研究数据使它可被人们重新关注。这些数据包括谷物质量、自然释放和加工食品中的残留,但目前并不广为人知。埃及研究数据显示,即使在400 mg/m^(3)高剂量... 详细信息

虽然二硫化碳(CS_(2))是一种古老的熏蒸剂,但澳大利亚新数据以及中国和埃及已发表的研究数据使它可被人们重新关注。这些数据包括谷物质量、自然释放和加工食品中的残留,但目前并不广为人知。埃及研究数据显示,即使在400 mg/m^(3)高剂量下,二硫化碳对水稻的发芽率和幼芽长度都没有影响。中国研究数据显示,200 mg/m^(3)高剂量对大麦、小麦、玉米、高粱、棉花、胡萝卜等大多数种子发芽率没有影响。本研究中150 mg/L剂量对澳大利亚小麦、大麦以及鹰嘴豆发芽率和幼芽长度的影响数据也证明了这一点。澳大利亚储藏谷物研究实验室(SGRL)的商业规模实验数据表明,二硫化碳在1000~1500 mg·h·L^(-1)的CT值(浓度×时间)范围内可杀死所有受试昆虫,并且对小麦最终产品质量没有影响。二硫化碳在谷物上的吸附力低于甲基溴,且主要是物理吸附。它会在谷物上有残留物,但这些残留物在储存和加工的过程中会被大量降解,而剩余的二硫化二苯醚残留物会在小麦制粉前的清理和润麦过程中减少。在制粉和烘烤的过程中,二硫化碳的残留量会逐渐减少。例如,将含有27 g/m^(3)二硫化碳的小麦在仓内密封放置6 d,然后通风24 h,清理会使制粉前的残留量从6.7 mg/kg降至4.6 mg/kg,润麦会使残留量从4.6 mg/kg降至2.2 mg/kg。在制粉的过程中,残留量会进一步减少,而在面条(甚至在烹饪前)、意大利面以及面包的制作过程中,残留量还会进一步减少。当前检测分析方法无法检测加工产品中的残留量(定量限值<0.005 mg/kg),且其残留水平与同一来源未经二硫化碳熏蒸的小麦制品相同。

关键词：熏蒸剂二硫化碳吸附性发芽率残留

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前驱气体对大气细微粒浓度变化影响的研究

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中国粉体技术 2009年第2期15卷 27-31页

作者：林锐敏陈亲莹高雄第一科技大学环境与安全卫生工程系

重点研究以台湾地区高屏空品区的大寮、美浓、及左营测站为研究标地，以ISORROPIA热力学平衡模式仿真，假设气溶胶形态为稳定状态或亚稳定状态．且有无包含地壳元素，比较仿真结果与实际测量值之间的差异，以了解气溶胶形态为稳定或亚... 详细信息

重点研究以台湾地区高屏空品区的大寮、美浓、及左营测站为研究标地，以ISORROPIA热力学平衡模式仿真，假设气溶胶形态为稳定状态或亚稳定状态．且有无包含地壳元素，比较仿真结果与实际测量值之间的差异，以了解气溶胶形态为稳定或亚稳定状态下，气溶胶的变化反应。模式效能评估结果显示，在亚稳定状态及有包含地壳元素条件下，其仿真效果最好，且此条件也是较接近实际的环境状态。通过以大寮、美浓及左营测站为标地，以亚稳定状态及有包含地壳元素条件进行讨论，结果显示，在不同季节及不同地区，影响PM2.5浓度的最主要前驱污染物皆不同。此外，PM2.5临界值的结果显示，其前驱污染物对PM2.5浓度变化影响呈现非线性反应及非正比的关系。

关键词：热力学平衡前驱气体大气悬浮颗粒

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利用β-BaB2O4晶体的铜蒸汽激光倍频

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光学学报 1984年第6期4卷 513-516页

作者：张桂燕景春阳林福成陈创天吴柏昌中国科学院上海光学精密机械研究所中国科学院福建物质结构研究所

本文报道用铜蒸汽激光器和β-BaB2O4倍频晶体产生波长为255nm和289mm的紫外相干光.当输入基波的平均功率为0.5W时,可产生平均功率约3.5mW,峰值功率约7W的倍频波.倍频效率约为0.7%.整个实验装置十分简单.

关键词：倍频晶体基频光紫外相位匹配激光倍频倍频光 BaB2O4

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Effect of Spatial Variability in the Geometry of Fractures on Granite Slope Stability

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Journal of Earth Science 2023年

作者： lin Jia Jing-Sen Cai Li Wu Tian-Chyi jim Yeh E-Chuan Yan Yi Du Department of Hydrology and Atmospheric Sciences University of Arizona Tianjin Key Laboratory of Water Resources and Environment Tianjin Normal University Faculty of Engineering China University of Geosciences Engineering Research Center of Rock-Soil Drilling & Excavation and Protection Ministry of Education China University of Geosciences

A DFN-DEC(discrete fracture network-distinct element code) method based on MATLAB platform is developed to generate heterogeneous DFN. Subsequently, the effects of the spatial variability(the mean μ and the standard deviation σ) of the geometric properties(i.e., the fracture dip D,the trace length T and the spacing S) of both the gently-dipping(denoted with 1) and the steeply-dipping(denoted with 2) fractures on the stability of granite slope are investigated. Results indicate that the proposed DFN-DEC method is robust, generating fracture networks resemble the reality. In addition, the spatial variability of fracture geometry, influencing the structure of granite slope, plays a significant role in slope stability. The mean stability of the slope decreases with the increase of μD1, σD2, μT1,μT2, σT1, σT2, and the decrease of σD1, μD2, μS1 and μS2. Among them, μT1, μD1 and μS1 have the major impact.When the fracture spacing is large, the variability in the fracture geometry becomes less relevant to slope stability. When within some ranges of the fracture spacing, the spatial varying of dips can increase the slope stability by forming an interlaced structure. The results also show that the effects of the variability of trace length on slope stability depend on the variability of dip. These findings highlight the importance of spatial variability in the geometry of fractures to rock slope stability analysis.

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Productivity Gap and Inward FDI Spillovers: Theory and Evidence from China

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China & World Economy 2021年第2期29卷 24-48页

作者： jim Huangnan Shen Hao Wang Steve Chu-Chia lin School of Management Fudan UniversityChina Center for International Development Harvard Kennedy SchoolUS School of Economics and Trade Guangdong University of Foreign StudiesChina School of Slavonic and East European Studies University College LondonUK Department of Economics National Chengchi UniversityTaiwanChina

This paper constructs a two-stage sequential game model to shed light on the spillover effect of inward FDI on the efficiency of domestic firms in host countries.Our model shows that,given an optimal joint-venture policy made by foreign firms,the impact of the spillover effect of inward FDI is contingent upon the productivity gap between the domestic firms and foreign ones.In particular,we demonstrate that the spillover effect of inward FDI varies negatively with the productivity gap between domestic lowproductivity firms and foreign firms but works in the opposite way for high-productivity firms.This suggests that once the productivity gap widens,the entry of foreign firms will increase the efficiency of high-productivity firms but reduce the efficiency of lowproductivity firms.In support of our theoretical model,we provide robust empirical results by using the dataset of annual survey of Chinese industrial enterprises.

关键词： efficiency improvement inward FDI productivity gap spillover effect

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Laparoscopic Sleeve Gastrectomy following Pylorus-Preserving Pancreaticoduodenectomy

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Surgical Science 2023年第5期14卷 355-359页

作者： Chien-Hua lin Jing-jim Ou Yueh-Tsung Lee Hurng-Sheng Wu Department of Surgery Chang Bing Show Chwan Memorial Hospital Taiwan IRCAD Taiwan

Background: A 35-year-old married female (68 kg, 150 cm, BMI: 30.2) with pancreatic divisum complicated chronic pancreatitis and underwent pylorus-preserving pancreaticoduodenectomy in 2010. After that, her condition was well. However, body weight gained progressively to 76 kg (BMI: 33.7) and hypertension developed. During these two years, tried exercise and medication control for hypertension, but in vain. She received a laparoscopic sleeve gastrectomy in October 2013. The post-operative course was uneventful. Methods: We applied three ports for laparoscopic operation, including two 12 mm and one 5 mm trocars. The liver was not needed to be elevated due to adhesion. The operative time was 75 minutes. Results: The patient’s body weight was 10 kg reduced in the first two months and reduced to 59 kg 6 months later. Conclusions: We report a case that received laparoscopic sleeve gastrectomy following pylorus-preserving pancreaticoduodenectomy due to pancreatic divisum. This case encourages us to extend the indication of laparoscopic sleeve gastrectomy.

关键词： Sleeve Gastrectomy Morbid Obesity Obesity Pancreatectomy

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在役转轴表面疲劳裂纹的爬波检测

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无损检测 2009年第12期31卷 937-939页

作者：周昌智林俊明周正干北京航空航天大学机械与自动化系北京100191 北京中研国辰测控技术有限公司北京100192

采用常规超声检测方法对在役转轴表面疲劳裂纹检测的效果很差。针对此类在役转轴疲劳裂纹产生的机理,结合超声爬波传播的特性,选用超声爬波对在役转轴产生的表面疲劳裂纹进行检测。对某规格的阶梯转轴进行的检测结果表明,超声爬波检测... 详细信息

采用常规超声检测方法对在役转轴表面疲劳裂纹检测的效果很差。针对此类在役转轴疲劳裂纹产生的机理,结合超声爬波传播的特性,选用超声爬波对在役转轴产生的表面疲劳裂纹进行检测。对某规格的阶梯转轴进行的检测结果表明,超声爬波检测方法简便可行,能够有效地检测出转轴在役运行状态中出现的疲劳裂纹,因此可用于在役转轴表面疲劳裂纹的日常检测。

关键词：爬波表面疲劳裂纹超声波检测转轴

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老年高血压患者海水浴体疗前、后左房构形的变化

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心血管康复医学杂志 2003年第1期12卷 17-19页

作者：戴蓉王俊林龙郑文华王海军黄景仁郑钟萍林玲南京军区鼓浪屿疗养院福建厦门市361002

目的:海水浴体疗运动对老年高血压患者左房构形的影响。方法:采用心电图和超声心动图,对120例老年高血压海水浴体疗组和82例对照组,作疗养前后P波最大时限、左房内径、左房面积、左房容量测量,同时观察收缩压与心率乘积的变化,并作统计... 详细信息

目的:海水浴体疗运动对老年高血压患者左房构形的影响。方法:采用心电图和超声心动图,对120例老年高血压海水浴体疗组和82例对照组,作疗养前后P波最大时限、左房内径、左房面积、左房容量测量,同时观察收缩压与心率乘积的变化,并作统计学分析。结果:疗养结束后,海水浴体疗组的收缩压与心率乘积、P波最大时间、左房内径、左房面积及容量较疗养前及对照组疗养后比,具有显著或非常显著性的统计学意义(P0.05)。结论:海水浴体疗是项综合性的全身有氧运动,能降低老年高血压患者心肌耗氧量,减轻心脏负荷,改善左房构形。

关键词：高血压海水浴左房构形老年人

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Autologous bone marrow stem cell transplantation in critical limb ischemia： a meta-analysis of randomized controlled trials

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Chinese Medical Journal 2012年第23期125卷 4296-4300页

作者： LIU Fu-peng DONG Jian-jun SUN Shu-juan GAO Wei-yi ZHANG Zhong-wen ZHOU Xiao-jun YANG Liu ZHAO jim-yu YAO Jin-ming LIU Meng LIAO lin Division of Endocrinology Department of Medicine Division of Clinical Pharmacy Department of Pharmaceutical Sciences Shandong Provincial Qianfoshan Hospital Jinan Shandong 250014 China Division of Endocrinology Department of Medicine Qilu Hospital of Shandong University Jinan Shandong 250012 China

Background Amputation-free survival （AFS） has been recommended as the gold standard for evaluating No-Option Critical Limb Ischemia （NO-CLI） therapy. Early-phase clinical trials suggest that autologous bone-marrow derived cells （BMCs） transplantation may have a positive effect on patients with NO-CLI, especially decreasing the incidence of amputation. However, the BMCs therapeutic efficacy remains controversial and whether BMCs therapy is suitable for all CLI patients is unclear. Methods We conducted a meta-analysis using data from randomized controlled trials （RCTs） by comparing autologous BMCs therapy with controls in patients with critical limb ischemia, and the primary endpoint is the incidence of amputation. Pubmed, EBSCO and the Cochrane Central Register of Controlled Trials （to approximately July 25, 2012） were searched. Results Seven RCTs with 373 patients were enrolled in the meta-analysis. Because serious disease was the main reason leading to amputation in one trial, six studies with 333 patients were finally included in the meta-analysis. Pooling the data of the final six studies, we found that BMCs therapy significantly decreased the incidence of amputation in patients with CLI （odds ratio （OR）, 0.37; 95% confidence interval （CI）, 0.22 to 0.62; P=-0.0002）, and the efficacy had not significantly declined within 6 months after BMCs were transplanted; OR, 0.33; 95% CI, 0.16 to 0.70; P=0.004 within 6 months and OR, 0.30; 95% CI, 0.11 to 0.79; P=0.01 within 3 months. The rate of AFS after BMCs therapy was significantly increased in patients with Rutherford class 5 CLI （OR 3.28; 95% CI, 1.12 to 9.65; P=0.03）, while there was no significant improvement in patients with Rutherford class 4 （OR 0.35; 95% CI, 0.05 to 2.33; P=0.28） compared with controls. The BMCs therapy also improved ulcer healing （OR, 5.83; 95% CI, 2.37 to 14.29; P=-0.0001）. Conclusions Our analysis suggests that autologous BMCs therapy has a beneficial effect in decreasing the incidence of amputation and the efficacy does not decrease signif

关键词： bone marrow-derived cells stem cells transplantation critical limb ischemia meta-analysis

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