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Suprapubic cystostomy versus nonsuprapubic cystostomy during monopolar transurethral resection of prostate： a propensity score-matched analysis

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Asian Journal of Andrology 2018年第1期20卷 62-68页

作者： Run-Qi Guo Yi-Sen Meng Wei yu Kai Zhang Ben Xu yun-Xiang Xiao Shi-liang Wu Bai-Nian Pan Department of Urology Peking University First Hospital and Institute of Urology National Research Center for Genitourinary Oncology Beijing 100034 China

We aim to reassess the safety of the monopolar transurethral resection of the prostate （M-TURP） without suprapubic cystostomy at our institution over the past decade. This retrospective study was conducted in patients who underwent M-TURP at Peking University First Hospital between 2003 and 2013. A total of 1680 patients who had undergone M-TURP were identified, including 539 patients in the noncystostomy group and 1141 patients in the cystostomy group. After propensity score matching, the number of patients in each group was 456. Smaller reductions in hemoglobin and hematocrit （10.9 g vs 17.6 g and 3.6% vs 4.7%, respectively） were found in the noncystostomy group. In addition, patients undergoing surgery without cystostomy had their catheters removed earlier （4.6 days vs 5.2 days）, required shorter postoperative stays in the hospital （5.1 days vs 6.0 days）, and were at lower risk of operative complications （5.7% vs 9.2%）, especially bleeding requiring blood transfusion （2.9% vs 6.1%）. Similar findings were observed in cohorts of prostates of 30-80 ml and prostates 〉80 ml. Furthermore, among patients with a resection weight 〉42.5 g or surgical time 〉90 min, or even propensity-matched patients based on surgical time, those with cystostomy seemed to be at a higher risk of operative complications. These results suggest that M-TURP without suprapubic cystostomy is a safe and effective method, even among patients with larger prostates, heavier estimated resection weights, and longer surgical times.

关键词： benign prostatic hyperplasia complication suprapubic cystostomy transurethral resection of the prostate transurethralresection syndrome

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Geomorphic features of Quaternary glaciation in the Taniantaweng Mountain, on the southeastern Qinghai-Tibet Plateau

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Journal of Mountain Science 2019年第2期16卷 256-274页

作者： ZHANG Wei CHAI Le IAN S.Evans LIU liang LI Ya-peng QIAO Jing-ru TANG Qian-yu SUN Bo College of Urban and Environmental Sciences Liaoning Normal University Geography Department Durham University

We present geomorphological evidence for multiple glacial fluctuations during the Quaternary in the Taniantaweng Mountain, which is situated at the transition zone of the southeastern Qinghai-Tibet Plateau and the yunnan-Guizhou Plateau. To reconstruct the history of glacial evolution during the Quaternary Glaciation, we present a ~13000 km^2 geomorphologic map(1:440,000) for the Quaternary glaciations, as well as three electron spin resonance(ESR) ages and three optically stimulated luminescence(OSL) ages from the landforms. By integrating these with ages from previous studies, four major glacial advances are identified during marine oxygen isotope stages(MIS) 6, 3, 2 and 1. This glacial chronology is in reasonable agreement with existing glacial chronologies from other parts of the Hengduan Mountains and surrounding mountains. Glaciers had extended to the yuqu River during the glacial maximum advance(MIS 6), but became successively more restricted from MIS 3 to MIS 1. The glacial distribution show that precipitation brought by the south Asian monsoon might play a primary role in driving glacial advances during the last glacial period in the southeastern Qinghai-Tibet Plateau.

关键词： Qinghai-Tibet Plateau Taniantaweng Mountain Glacial landform ESR dating OSL dating South Asian monsoon

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硫铝酸盐水泥协同垃圾焚烧副产物固化浓缩液污泥的强度和水稳定性试验研究

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岩土力学 2022年第6期43卷 1453-1468页

作者：梁仕华冯德銮广东工业大学土木与交通工程学院广东广州510006

采用浸没燃烧工艺产生的生活垃圾卫生填埋场浓缩液污泥具有含水率高、有机质含量和重金属含量低,但含盐量极高的特点。选用硫铝酸盐水泥作为主固化剂,垃圾焚烧飞灰和底渣作为辅助固化剂,制备不同水泥、飞灰和底渣掺量的固化污泥试样,进... 详细信息

采用浸没燃烧工艺产生的生活垃圾卫生填埋场浓缩液污泥具有含水率高、有机质含量和重金属含量低,但含盐量极高的特点。选用硫铝酸盐水泥作为主固化剂,垃圾焚烧飞灰和底渣作为辅助固化剂,制备不同水泥、飞灰和底渣掺量的固化污泥试样,进行一系列的无侧限抗压试验、水稳定性试验和微观测试试验,以定量分析不同固化剂对浓缩液污泥的固化效果,探索固化污泥强度演化规律和浸水劣化机制的宏微观耦合控制机制。试验结果表明:单掺10%水泥,固化污泥的7 d无侧限抗压强度大于50 kPa,即可达到填埋的强度要求;当单掺50%以上的水泥时,28 d龄期的固化污泥才具有满足填埋强度要求的水稳定性;飞灰和底渣对水泥固化试样28d强度的提升存在一个最优掺量,分别为5%(水泥掺量<40%)和10%(水泥掺量≥40%);在水稳定性方面,复掺底渣较复掺飞灰有效。扫描电镜(SEM)和X射线衍射(XRD)微观测试结果表明:水泥与一定量的飞灰或底渣共同生成的针柱状钙矾石晶体与水泥水化产物形成空间镶嵌互锁结构,是掺飞灰或底渣固化试样水稳定性提高的主要原因。

关键词：浓缩液污泥极高含盐量固化稳定化垃圾焚烧副产物水稳定性

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Identification of a novel inflammatory-related gene signature to evaluate the prognosis of gastric cancer patients

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World Journal of Gastrointestinal Oncology 2024年第3期16卷 945-967页

作者： Jia-Li Hu Mei-Jin Huang Halike Halina Kun Qiao Zhi-yuan Wang Jia-Jie Lu Cheng-liang Yin feng Gao Department of Gastroenterology People's Hospital of Xinjiang Uygur Autonomous RegionUrumqi 830001Xinjiang Uygur Autonomous RegionChina Xinjiang Clinical Research Center for Digestive Disease Urumqi 830001Xinjiang Uygur Autonomous RegionChina Department of Oncology 920th Hospital of PLA Joint Logistics Support ForceKunming 650032Yunnan ProvinceChina Faculty of Medicine Macao University of Science and TechnologyMacao 999078China

BACKGROUND Gastric cancer(GC)is a highly aggressive malignancy with a heterogeneous nature,which makes prognosis prediction and treatment determination *** is now recognized as one of the hallmarks of cancer and plays an important role in the aetiology and continued growth of *** also affects the prognosis of GC *** reports suggest that a number of inflammatory-related biomarkers are useful for predicting tumour ***,the importance of inflammatory-related biomarkers in predicting the prognosis of GC patients is still *** To investigate inflammatory-related biomarkers in predicting the prognosis of GC *** constructed using the least absolute shrinkage and selection operator Cox regression model based on the GEO *** patients from the GSE26253 cohort were used for *** and multivariate Cox analyses were used to determine the independent prognostic factors,and a prognostic nomogram was *** calibration curve and the area under the curve based on receiver operating characteristic analysis were utilized to evaluate the predictive value of the *** decision curve analysis results were plotted to quantify and assess the clinical value of the *** set enrichment analysis was performed to explore the potential regulatory pathways *** relationship between tumour immune infiltration status and risk score was analysed via Tumour Immune Estimation Resource and ***,we analysed the association between risk score and patient sensitivity to commonly used chemotherapy and targeted therapy *** A prognostic model consisting of three inflammatory-related genes(MRPS17,GUF1,and PDK4)was *** prognostic analysis revealed that the risk score was a separate prognostic factor in GC *** to the risk score,GC patients were stratified into high-and low-risk groups,and patients in the high-risk group ha

关键词： Gastric cancer Inflammation Immune infiltration Prognosis signature Subt

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Effect of nitrogen gas flow and growth temperature on extension of GaN layer on Si

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Chinese Physics B 2021年第11期30卷 604-609页

作者： Jian-Kai Xu Li-Juan Jiang Qian Wang Quan Wang Hong-Ling Xiao Chun feng Wei Li Xiao-liang Wang Key Laboratory of Semiconductor Materials Science Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China School of Microelectronics University of Chinese Academy of SciencesBeijing 100049China Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices Beijing 100083China The State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100China Institute of Novel Semiconductors Shandong UniversityJinan 250100China

The effect of nitrogen flow and growth temperature on extension of GaN on Si substrate has been *** increasing the nitrogen flow whose outlet is located in the center of the MOCVD(metal–organic chemical vapor deposition)gas/particle screening flange and by increasing the growth temperature of HT-AlN and AlGaN buffer layers near the primary flat of the wafer,the GaN layer has extended more adequately on Si *** the meantime,the surface morphology has been greatly *** the AlN and GaN crystal quality uniformity has been improved.X-ray diffraction results showed that the GaN(0002)XRD FWHMs(full width at half maximum)decreased from 579 arcsec~1655 arcsec to around 420 arcsec.

关键词： GaN extension MOCVD nitrogen flow growth temperature

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Single-celled metasurface for labeled vortex beam generator

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Journal of Materiomics 2024年第4期10卷 811-818页

作者： Congling liang Qi Dai Tian Huang Hong-Chao Liu Zhiqiang Guan Rao Fu Jin Tao Zile Li Shaohua yu Guoxing Zheng Electronic Information School and School of MicroelectronicsWuhan UniversityWuhan430072China Wuhan Institute of Quantum Technology Wuhan430206China Peng Cheng Laboratory Shenzhen518055China Suzhou Institute of Wuhan University Suzhou215123China Institute of Applied Physics and Materials Engineering University of MacaoAvenida da UniversidadeTaipaMacao SARMacao999078China State Key Laboratory of Optical Communication Technologies and Networks China Information Communication Technologies Group Corporation(CICT)Wuhan430074China

Vortex light is a unique beam characterized by a spiral phase as it propagates. A fundamental parameter of vortex light is the topological charge, which determines the amount of angular momentum and plays a crucial role in tailoring its behavior. However, conventional measurement methods for determining the topological charge, such as those based on interference and phase modulation, tend to be intricate and complex. In this regard, a labeled vortex beam generator is proposed, composed of a metasurface with a single-celled configuration. When the metasurface is illuminated by light of the designed wavelength, the outgoing light exhibits a vortex structure. Furthermore, the topological charge numbers can be directly observed with distinct labeled patterns when the metasurface is placed in an orthogonal-polarized optical path. With advantages such as ultra-compactness, high robustness, and exceptional precision, the proposed metasurface exhibits significant potential for applications in optical communication, light manipulation, optical sensing, etc.

关键词： Metasurface Vortex beam generator Topological charge

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我国食品安全连带赔偿立法的完善

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食品科学 2020年第13期41卷 302-309页

作者：肖峰孙亮湘潭大学法学院湖南湘潭411105

自《食品安全法》引入连带赔偿责任制度以来,司法实践就连带责任主体、责任连带的方向,特别是惩罚性赔偿的可连带性等问题,产生了诸多争议。究其原因,乃是我国现行立法存在三点不足:一是食品安全的连带责任归责标准片面引用民事连带的规... 详细信息

自《食品安全法》引入连带赔偿责任制度以来,司法实践就连带责任主体、责任连带的方向,特别是惩罚性赔偿的可连带性等问题,产生了诸多争议。究其原因,乃是我国现行立法存在三点不足:一是食品安全的连带责任归责标准片面引用民事连带的规则,对“明知”等特别规定缺乏清晰表达;二是在“经营者-消费者”对外赔偿关系与“连带经营者-本责任经营者”内部追偿关系之间,就“实际损失和惩罚性赔偿金”在内的所有赔偿款缺乏科学的责任分担规则;三是立法价值上过于追求对消费者的事后补偿,供应链内纵向经营者间相互监督不适应风险预防的需要。因此,应当走出移用民事连带责任的制度窠臼,在立法和司法方面明确连带责任标准,以过错状况形成精细化的连带责任机制和追偿规则,并相应地修正追偿制度的设计,着力构建由连带责任引领下的食品安全责任共担、风险共防体系。

关键词：食品安全连带责任立法完善

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The Role of ROS in Hydroquinone-induced Inhibition of K562 Cell Erythroid Differentiation

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Biomedical and Environmental Sciences 2014年第3期27卷 212-214页

作者： yu Chun Hong Suriguga LI Yang LI Yi Ran TANG Ke Ya JIANG liang YI Zong Chun School of Biological Science and Medical Engineering Beihang University

The role of ROS in hydroquinone-induced inhibition of K562 cell erythroid differentiation was investigated. After K562 cells were treated with hydroquinone for 24 h, and hemin was later added to induce erythroid differentiation for 48 h, hydroquinone inhibited hemin-induced hemoglobin synthesis and mRNA expression of y-globin in K562 cells in a concentration-dependent manner. The 24-h exposure to hydroquinone also caused a concentration-dependent increase at an intracellular ROS level, while the presence of N- acetyI-L-cysteine prevented hydroquinone- induced ROS production in K562 cells. The presence of N-acetyI-L-cysteine also prevented hydroquinone inhibiting hemin-induced hemoglobin synthesis and mRNA expression of y-globin in K562 cells. These evidences indicated that ROS production played a role in hydroquinone-induced inhibition of erythroid differentiation.

关键词： ROS NAC

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A Constant Potential Molecular Dynamics Simulation Study of the Atomic-Scale Structure of Water Surfaces Near Electrodes

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Chinese Journal of Chemistry 2019年第12期37卷 1251-1258页

作者： Pengli Yang Zhenxing Wang Zun liang Hongtao liang Yang Yang School of Physics and Electronic Science East China Normal UniversityShanghai 200241China Microvast Power Systems Co. Ltd.HuzhouZhejiang 313000China

Summary of main observation and conclusion Novel and technologically important processes and phenomena arise at water surfaces in the presence of electric ***,experimental measurements on water surfaces are challenging,and the results are scarce and *** this work,the constant potential molecular dynamics method,in which the electrode charges are allowed to fluctuate to keep the electric potential fixed,was implemented in the study of a near-electrode water surface *** simulation system was set up with a vapor/liquid-water/vapor slab and two electrodes under different sets of applied electrostatic potential,yielding i)a detailed characterization of the external E-field dependent electrostatic potential/density/dipole moment density profiles,and ii)the relationship between the water surface width and the applied electrode voltage differences which has been rarely *** adjustments in the number density profiles in the vicinity of water surfaces due to external E-fields were observed,while the capillary interfacial widths for the surfaces near both cathode and anode were found with different increment rates under increasing *** examining dipole density profiles across the water surfaces,we found that external E-field induced polarization occurs in both bulk and surface regimes,yet the surface polarization densities vary asymmetrically with respect to the increasing *** discussions were carried out to explain the correlation between water surface tension and surface widths,as well as the interplay between the surface polarization densities and the hydrogen bond network *** conclude that the mechanical and structural properties of the water surfaces could be tuned by both magnitude and direction of the strong external *** also recognize that more surface properties with application value,such as dielectric permittivity tensor or surface potential,could also be regulated by the external E-fields

关键词： electrode polarization electrostatic

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金属玻璃的热塑性成型

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物理学报 2017年第17期66卷 231-244页

作者：马将杨灿龚峰伍晓宇梁雄深圳大学机电与控制工程学院广东省微纳光机电工程技术重点实验室深圳518060

金属玻璃在其过冷液相区内表现出随着温度升高黏度逐渐降低的特性,因此可以对其进行热塑性加工.该性质颠覆了传统金属的加工成型方式,使得其在远低于传统金属材料加工的温度和应力作用下可以按照人们的要求进行成型.因此,一些具有低玻... 详细信息

金属玻璃在其过冷液相区内表现出随着温度升高黏度逐渐降低的特性,因此可以对其进行热塑性加工.该性质颠覆了传统金属的加工成型方式,使得其在远低于传统金属材料加工的温度和应力作用下可以按照人们的要求进行成型.因此,一些具有低玻璃转变温度的金属玻璃又被称作金属塑料.另外,由于金属玻璃是一种无序结构材料,不存在位错、晶界等晶体缺陷,且热膨胀系数小,在热塑性成型中具有优异的尺寸精度,因此被认为是理想的微成型材料,有广阔的应用前景.本文系统介绍了金属玻璃的热塑性成型性质及其应用,从热塑性成型的基本概念出发,阐述了金属玻璃热塑性成型能力的评估指标、热塑性成型技术、热塑性微成型及其理论、热塑性微成型的应用等,对认识金属玻璃的热塑性及扩展其应用有重要的意义.

关键词：金属玻璃过冷液相区热塑性成型

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