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Copyright of Journal of Fuzhou University is the property of Journal of Fuzhou University, Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

An analytical method was developed for the determination of pendimethalin and oxyfluorfen in Zingiber officinale Roscoe (ginger), Z. officinale stem and soil using gas chromatography-tandem mass spectrometry (GC-MS). The final residues of the above two herbicides in Z. officinale and their dissipation dynamics in soil were studied using this new method. A simple and efficient pretreatment method called QuEChERS was used and samples were extracted with acetonitrile. Primary-secondary amine (PSA) and graphitized carbon black (GCB) were used to purify the Z. officinale and stem samples and Florisil was used to purify the soil samples.Ion scanning module (SIM) was selected for the mass spectrometry determination and the external standard and peak area method is employed for quantitative analysis. At the spiked levels of 0.01-0.5 mg/kg, the average recoveries of pendimethalin in Z. officinale, stem and soil were 91%-100%, 90%-98% and 86%-100%, respectively, and the relative standard deviations were 3.2%-3.7%, 2.7-4.2% and 3.2%-5.1%, respectively; the average recoveries of oxyfluorfen in Z. officinale, stem and soil were 90%-95%, 86%-91% and 85%-95%, respectively, and the relative standard deviations were 2.4%-4.4%, 3.9%-5.5% and 2.3%-4.9%, respectively, the limit of quantity (LOQ) of pendimethalin and oxyfluorfen samples were both 0.01 mg/kg. The dissipation half-lives of pendimethalin in soil were 12.5-20.5 days and the dissipation half-lives of oxyfluorfen in soil were 18.8-25.6 days in the ginger field study. When 33% pendimethalin emul-sifiable concentrate (EC) and 24% oxyfluorfen EC were sprayed at the recommended dose (active ingredients:693 g/hm2 and 72 g/hm2) and high dose (active ingredients:1 039 g/hm2 and 108 g/hm2) once after Z. officinale was planted, the pendimethalin and oxyfluorfen residues were not detected in Z. officinale in the harvest period. The results can provide a reference for the rational use and the maximum residue limits (MRL) standard development of pendimethalin and oxyfluorfen in Z. officinale. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Medical Equipment Journal is the property of Chinese Medical Equipment Journal Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To explore the correlation of constipation and aging, by detecting age-related indices of rat constipation model. Methods The rats were fed with Rhubarb powder, then the shape, color, weight and number of feces and the intestinal transport function within 24 h were measured to confirm the successful model. The serum SOD, thymus index and spleen index, and the expression of klotho protein in the hippocampus were compared between the healthy rats and the model rats. Results Compared with the healthy rats, the weight and number of feces of model rats within 24 h, percentages of the intestinal propulsion of activated carbon the level of serum SOD, thymus index, and klotho protein expression in the hippocampus, as well as the optical density of the klotho target protein and klothoβctin, all declined significantly( P<0.01 or P< 0.05). Conclusion Laxative-induced constipation has a certain correlation with aging, but its mechanism should be done. [ABSTRACT FROM AUTHOR]

Based on structural model tests of three-dimensional transmission towers and FEA results, secondary stresses in main members of tower legs of nine narrow base tubular transmission towers under various slenderness ratios and angles between main members and diagonal members were investigated. In addition , the stress state of auxiliary members of tower legs and ultimate bearing capacity of tower legs were analyzed. The results indicate that the secondary stress of the main member of tower leg is mainly predominated by the angle between the main member and the diagonal member in the case of two divided lattices for auxiliary members, and the value decreases as the angle increases. Comparatively, the influence of slenderness ratios on secondary stresses of main members is relatively insignificant. The internal force ratio between the auxiliary member and the main member becomes larger with the decrease of the intersection angle. And the influence of secondary stresses on main members of tower legs is negligible when the ratio between secondary stress and axial stress is not more than 30% upon the transmission tower being considered as a spatial truss. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Guangdong University of Technology is the property of Journal of Guangdong University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To explore the effects of exenatide on autophagy and occurrence of brown adipocytes for white adipose tissue in obese rats. Methods Twenty 4-week-old male SD rats were randomly divided into 2 groups according to random number table: control group with normal fat diet (n=10)and high fat diet group(HFD group, n=10 ). The rats in HFD group was fed with high-fat diet for 12 weeks, then they were randomly divided into intervention group(Exe group) and obesity group. The rats in the Exe group were subcutaneously injected with exenatide 10 μg•kg--1•d-1 through abdominal wall for 10 weeks, while the rats in control and obesity group were subcutaneously injected with saline solution. Western blotting and real time polymerase chain reaction (RT-PCR) were used for protein and gene expression assays. One-way analysis of variance and independent- samples t test were used for statistical analysis. Results (1) After 4 weeks of high-fat diet feeding, the body weight in the HFD group was increased than that in the control group ( (472± 38) vs (420 ± 28) g ，t=3.302，P=0.011）. After 4 weeks of exenatide treatment, the body weight was significantly decreased in the Exe group than the obesity group ((598±24) vs (696±35) g , t=4.554，P= 0.002）. (2) Compared with the obesity group, the level of autophagy-related protein light chain 3B(LC3B) II/ LC3BI was increased in the Exe group(2.17±0.12 vs 1.16±0.08，t=3.584 ，P<0.05). The level of uncoupling proteins 1(UCP- 1, which represents the occurrence of brown adipocytes for white adipose tissue) was increased than that in the obesity group(1.63 ± 0.09 vs 0.82 ± 0.06，t=8.397，P=0.0014). Conclusion Exenatide may reduce the body weight in obesity rats induced by high- fat- diet. The mechanism maybe promotion of the autophagy and converting into brown fat in white adipose tissue. [ABSTRACT FROM AUTHOR]

作为一门新型的、具有强大生命力的临床学科，重症医学科在现代医学体系中发挥着越来越重要的作 用。与一般学科临床教学不一样，重症医学临床教学更具有难度和挑战性。提高重症医学临床教学质量对于重症医学人 才的培养至关重要。该文就如何提高重症医学临床教学质量进行了如下探讨。通过严格教学查房、利用多媒体进行重症 医学临床教学、采用口诀与歌诀记忆法、开展系列小讲座、重视医学生临床实践技能培训与理论教学紧密结合，提高了重 症医学临床教学质量，增强了重症医学临床教学效果，有助于培养符合社会需求的高品质、高素质的重症医学专业人才。 [ABSTRACT FROM AUTHOR]

In social networks, reference correctness of name to entities is the basis for correct inference and analysis in the network. In order to disambiguate reference of name to entities, this paper proposed a name disambiguation algorithm based on random walk in social networks. Firstly, it constructed social ambiguous networks according to the co-occurrence of names in a source. Secondly, it computed the similarity between ambiguous nodes based on random walk in social ambiguous network. Finally, it implemented the name disambiguation algorithm by hierarchical clustering. The experiments show that, the proposed algorithm has better accuracy and higher execution efficiency than related works. [ABSTRACT FROM AUTHOR]

Aiming at the potential safety problems, such as the shallow gas leak and eruption, which exists in the geological exploration and underground construction, the damage and the characteristics of shallow gas were researched, and current methods of shallow gas detection were summarized, a portable shallow gas detector based on the technology of ARM and Linux was designed. The principal components of the shallow gas were methane and carbon dioxide. The gas sensor MH-410D and MH-440D based on Non-Dispersive infrared (NDIR) principle were used to detect CH4 and CO2. Data acquisition was carried out through the microprocessor S3C2440 internal ADC unit, the dual channel ADC Linux driver was designed to implement A/D conversion. And the shallow gas concentration data was saved in the backend SQLite database. Qt Creator was used to design the graphical user interface (GUI), which can show real-time concentration, historical data and the data curve respectively. Finally, the flow ratio mixing method was adopted to prepare different standard concentration gases on the shallow gas measurement experimental platform,and the measurement experiment was performed.The experimental results indicate that the detector is stable and reliable, good repeatability, great practicability. [ABSTRACT FROM AUTHOR]

To solve the three-dimensional (3-D) position calibration problem of spatial feature points, a vision calibration method of spatial point position under multi-view scene determination is proposed. Based on the computer vision principle, the scene pose of image is determined through placing a chessboard pattern in the scene, and then the 3-D position of spatial point is solved by using the image coordinates of spatial point in multi-view images and the scene poses of multi-view images. Results show that the 3-D position of spatial point calibrated by the method has a distance error less than 1 mm, which means the [ABSTRACT FROM AUTHOR]

Copyright of Shandong Medical Journal is the property of Shandong Medical Health Newspapers and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

目的 观察帕瑞昔布钠用于超声刀痔切除术后镇痛的效果和安全性。方法 120例接受超声刀痔切除术治疗Ⅱ~Ⅳ度内痔或混合痔患者,将其随机分为观察组和对照组各60例,观察组术后给予帕瑞昔布钠镇痛治疗,对照组给予氨酚羟考酮镇痛治疗,比较两组术后疼痛评分、24 h镇痛满意率和24 h尿潴留发生率,记录两组不良反应发生情况。结果观察组与对照组相比,术后疼痛评分低、术后24 h镇痛满意率高、术后24 h尿潴留发生率低(P均<0.05),两组不良反应发生率比较差异无统计学意义。结论 帕瑞昔布钠用于超声刀痔切除术后镇痛效果良好,不良反应少。 [ABSTRACT FROM AUTHOR]

For evaluating the safety of code models for the shear strength of continuous deep flexural members，a shear tests database is built in this paper by collecting and filtering the test results in literatures and research reports. The strut-and-tie model (STM) adopted by the American code ACI 318-11 and the shear strength equation for deep flexural members in the Chinese code GB 50010~2010 are analyzed and evaluated based on the database. The results indicate that both of the codes overestimate the shear strength of continuous deep flexural members. For the Chinese code, by setting the upper and lower limits of the shear span-to-depth ratio A to 3. 00 and 0. 25 respectively, its equation can safely estimate the shear strength of continuous deep flexural members ； for STM in the American code，its safety is improved by modifying the effective coefficient of concrete in strut. [ABSTRACT FROM AUTHOR]

【目的】研究深静脉血栓形成(DVT)患者血浆蛋白C(PC)、蛋白S(PS)活性水平、活化蛋白C 抵抗(APCR)和狼 疮样抗凝物(LA)阳性率, 进一步探讨它们与静脉血栓形成间的关系。【方法】用凝固法在Sysmex CA 1500、CA 6000 全自动血 凝仪上检测38 例DVT 患者和40 名正常对照的血浆PC 、PS 活性、活化蛋白C 反应性和LA 。【结果】治疗前DVT 组PC 、PS 活性分别为(70 ±23)%、(76±25)%, 与对照组相比差异均有极显著性意义(P 0.05)。DVT 组APCR 阳性率为21% , 明显高于对照组 2.5 %(P 0.05)。【结论】DVT 患者血浆PC 、PS 活性呈消耗性降低, 经治疗可逐渐恢复正常。LA 与DVT 患者血栓形成无关, APCR 是DVT 患者血栓形成的高危因素。