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How we can improve patients’comfort after Milligan- Morgan open haemorrhoidectomy

World Journal of Gastroenterology 2011年第11期17卷 1448-1456页

作者： Ma-mu-ti-Jiang A ba-bai-ke-re Hong-Guo Huang Wen-Ni Re Kai Fan Hui Chu er-Ha-ti Ai mai-mai-ti-tu-er-xun ke li-mu Yi-Rui Wang Hao Wen Department of Anorectal Surgical First Affiliated Hospital of Xinjiang Medical University Urumqi 830011 Xinjiang Uygur Autonomous Region China Department of Otolaryngeological Urumqi General Hospital Lanzhou Military Command Urumqi 830011 Xinjiang Uygur Autonomous Region China Department of Pharmocological First Affiliated Hospital of Xinjiang Medi- cal University Ururnqi 830011 Xinjiang Uygur Autonomous Region China Digestive and Vascular Surgical Center First Affili. ated Hospital Xinjiang Medical University Urumqi 830011 Xinjiang Uygur Autonomous Region China

AIM:To demonstrate the value of Diosmin(flavonidic fraction)in the management of post-haemorhoidectomic ***:Eighty-six consecutive patients with grades ⅢandⅣacute mixed hemorrhoids admitted to the Anorectal Surgical Department of First Affiliated Hospital,Xinjiang Medical University from April 2009 to April 2010,were enrolled in this *** observerblinded,randomized trial was conducted to compare post-haemorhoidectomic symptoms with use of Diosmin flavonidic fraction vs ***-six patients were randomly allocated to receive Diosmin flavonidic fraction 500 mg for 1 wk(n=43)or placebo(n=43).The Milligan-Morgan open haemorrhoidectomy was performed by a standardized diathermy excision ***,bleeding,heaviness,pruritus,wound edema and mucosal discharge were observed after *** postoperative symptoms and hospitalization time were ***:The mean age of the Diosmin group and controls was 53.2 and 51.3 years,*** Diosmin group,haemorrhoid piles were of the third degree in 33 patients and the fourth degree in 10;and in the control group,29 were of the third degree and 14 were of the fourth *** was no statistically significance in age,gender distribution,degree and number of excised haemorrhoid piles,and the mean duration of haemorrhoidal disease between the two *** was a statistically significant improvement in pain,heaviness,bleeding,pruritus from baseline to the 8th week after operation(Ptients taking Diosmin had a shorter hospitalization stay after surgery(Pere was also a significant improvement on the proctoscopic appearance(Per,there was no statistical difference between the two groups in terms of wound mucosal *** patients experienced minor bleeding at the 8th week in Diosmin group,and underwent ***:Diosmin is effective in alleviating postoperational symptoms of ***,it should be considered for the initial treatment afte

关键词： Flavonidic fraction Postoperative complication Haemorrhoids

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Evaluation of the injection and plugging ability of a novel epoxy resin in cement cracks

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Petroleum Science 2024年第2期21卷 1211-1220页

作者： Guang-Yao Leng Wei Yan Hai-mu Ye er-Dong Yao Ji-Bin Duan Zheng-Xian Xu ke-Pei li Jing-Ru Zhang Zhong li State key Laboratory of Petroleum Resource&Prospecting China University of Petroleum(Beijing)Beijing102249China CNPC liaohe Oilfield Gas Storage Co.LTD Panjin124000LiaoningChina CNOOC Research Institute Co. Ltd.Beijing100028China

Sustained casing pressure(SCP)is a crucial issue in the oil and gas production *** resins,exhibiting exceptional compressive strength,ductility,and shear bonding strength,have the potential to form reliable *** injectivity and sealing capacity of the epoxy resin is crucial parameters for the success of shallow remediation *** study aimed to develop and assess a novel solid-free resin sealant as an alternative to Portland cement for mitigating fluid *** investigation evaluated the viscosity,compressive strength,and brittleness index of the epoxy resin sealant,as well as its tangential and normal shear strengths in conjunction with casing *** flow characteristics and sealing abilities of conventional cement and epoxy resin were comparatively analyzed in *** results showed that the application of a viscosity reducer facilitated control over the curing time of the epoxy resin,ranging from 1.5 to 6 h,and reduced the initial viscosity from 865.53 to 118.71 m Pa,*** mechanical properties of the epoxy resin initially increased with a rise in curing agent content before experiencing a minor *** epoxy resin containing 30%curing agent exhibited optimal mechanical *** a 14-day curing period,the epoxy resin's compressive strength reached81.37 MPa,2.12 times higher than that of cement,whereas the elastic modulus of cement was 2.99 times greater than that of the epoxy *** brittleness index of epoxy resin is only 3.42,demonstrating high flexibility and *** tangential and normal shear strengths of the epoxy resin exceeded those of cement by 3.17 and 2.82 times,*** a 0.5 mm-wide crack,the injection pressure of the epoxy resin remained below 0.075 MPa,indicating superior injection and flow ***,the injection pressure of cement surged dramatically to 2.61 MPa within 5 *** breakthrough pressure of0.5 PV epoxy resin reached 7.53 MPa,decreasing the crack's perme

关键词： Sustained casing pressure Epoxy resin sealant Curing agent Viscosity reducer Mechanical properties Crack sealing

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超大城市边缘区空间演变、影响因素与治理路径——以广州市白云区为例

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地理科学进展 2024年第9期43卷 1744-1755页

作者：郭晓东李欢穆镁锐麦凤霞兰州大学资源环境学院兰州730000 广州市规划和自然资源局白云分局广州510405

超大城市边缘区是城市空间扩展蔓延的前沿区域,是亟需推进治理体系和治理能力现代化的重要场域。论文以广州市白云区为例,借助FROM-GLC10 LULC数据产品及土地利用转移矩阵、灰色关联度分析、GIS空间分析等方法,分析1985—2020年白云区... 详细信息

超大城市边缘区是城市空间扩展蔓延的前沿区域,是亟需推进治理体系和治理能力现代化的重要场域。论文以广州市白云区为例,借助FROM-GLC10 LULC数据产品及土地利用转移矩阵、灰色关联度分析、GIS空间分析等方法,分析1985—2020年白云区土地利用变化及城市空间演变的过程、特征、影响因素与驱动机制,在此基础上探讨超大城市边缘区的治理路径与模式。研究结果表明:①1985—2020年,白云区土地利用变化显著,土地利用变化特征主要表现为建设用地快速增长和耕地、林地和草地面积减少,耕地与建设用地此消彼长的特征极为显著。②研究时段内,白云区建设用地呈现出“急剧扩张”“高速稳定扩张”“扩张减缓”“低速扩张”4个阶段的演变过程与特征。建设用地扩展受到中心城区辐射的显著影响,呈现由南向北扩展的空间态势。③超大城市边缘区空间演变受到自然因素、地理区位、经济发展、要素投入、政策制度等因素影响,多种因素共同驱动超大城市边缘区土地利用变化和空间演变。④新时期中国超大城市边缘区治理应以革新治理理念、完善内容目标、创新手段模式、健全体制机制等为重点,有效推进治理体系和治理能力现代化,实现城乡共治、多元共治、整体智治和基层自治。研究结果可为新时期中国城市规划、建设和现代化治理提供理论参考和实践指导。

关键词：城市边缘区空间演变驱动机制治理路径广州市白云区

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EEF1A1对急性心肌梗死模型大鼠心肌细胞凋亡及Notch/AKT转导途径的影响

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中西医结合心脑血管病杂志 2024年第19期22卷 3519-3523页

作者：朱涛张为民阿不都乃比·麦麦提艾力刘正艾克热木·吐尔逊霍强新疆医科大学第一附属医院乌鲁木齐830054

目的:探讨人类真核翻译延长因子(EEF1A1)对急性心肌梗死(AMI)模型大鼠心肌细胞凋亡及Notch/蛋白激酶B(AKT)转导途径的影响。方法:将30只SD雄性大鼠随机分为假手术组、模型组、干预组,每组10只,模型组、干预组于冠状动脉左前降支结扎建立... 详细信息

目的:探讨人类真核翻译延长因子(EEF1A1)对急性心肌梗死(AMI)模型大鼠心肌细胞凋亡及Notch/蛋白激酶B(AKT)转导途径的影响。方法:将30只SD雄性大鼠随机分为假手术组、模型组、干预组,每组10只,模型组、干预组于冠状动脉左前降支结扎建立AMI大鼠模型,对照组仅手术穿线处理不结扎。建模后24 h干预组于心肌梗死区原位注射EEF1A1腺病毒,模型组、对照组注射等量生理盐水。干预72 h后,心脏彩超测定大鼠心功能,采用脱氧核糖核苷酸末端转移酶介导的缺口末端标记(tuNEL)染色法评估心肌细胞凋亡,2,3,5-氯化三苯基四氮唑(TCC)染色法评估心肌梗死面积,采用实时定量聚合酶链式反应(RT-PCR)法测定EEF1A1 mRNA表达量,蛋白免疫印迹法(Western Blot)检测心肌组织EEF1A1蛋白以及Notch/AKT信号通路相关蛋白表达情况。结果:干预前,模型组、干预组左室射血分数(LVEF)明显低于假手术组(P<0.05),而左心室收缩末期内径(LVESD)、左心室舒张末期内径(LVEDD)明显高于假手术组(P<0.05);干预后3 d后,干预组LVEDD、LVESD明显降低,而LVEF明显增加,模型组LVEDD、LVESD明显增加,而LVEF明显降低,差异均有统计学意义(P<0.05)。干预组心肌组织EEF1A1蛋白及mRNA表达水平高于假手术组、模型组(P<0.05),而模型组心肌组织EEF1A1蛋白及mRNA表达水平高于假手术组(P<0.05)。干预组心肌梗死面积小于模型组(P<0.05)。干预组心肌细胞凋亡率明显高于假手术组(P<0.05),明显低于模型组(P<0.05)。干预组Notch1、Hes1、磷酸化AKT(p-AKT)/AKT相关蛋白表达明显高于模型组、假手术组,模型组Notch1、Hes1、p-AKT/AKT相关蛋白表达均明显高于假手术组(P<0.05)。结论:EEF1A1可抑制AMI大鼠心肌细胞损伤、凋亡,缩小心肌梗死面积,改善心脏功能,其作用机制可能与上调Notch/AKT转导途径有关。

关键词：急性心肌梗死人类真核翻译延长因子细胞凋亡心脏功能 Notch/AKT转导途径实验研究

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Rapid detection and risk assessment of soil contamination at lead smelting site based on machine learning

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Transactions of Nonferrous Metals Society of China 2024年第9期34卷 3054-3068页

作者： Sheng-guo XUE Jing-pei FENG Wen-shun ke mu li Kun-yan QIU Chu-xuan li Chuan WU lin GUO School of Metallurgy and Environment Central South UniversityChangsha 410083China Henan key Laboratory of Monitoring and Remediation in Heavy Metal Polluted Soil Jiyuan 454650China Henan Academy of Geology Zhengzhou 450000China

A general prediction model for seven heavy metals was established using the heavy metal contents of 207soil samples measured by a portable X-ray fluorescence spectrometer(XRF)and six environmental factors as model correction *** eXtreme Gradient Boosting(XGBoost)model was used to fit the relationship between the content of heavy metals and environment characteristics to evaluate the soil ecological risk of the smelting *** results demonstrated that the generalized prediction model developed for Pb,Cd,and As was highly accurate with fitted coefficients(R~2)values of 0.911,0.950,and 0.835,*** presented the highest ecological risk,and there existed high potential ecological risk at some positions with different depths due to high mobility of ***,the application of machine learning significantly increased the accuracy of pXRF measurements,and identified key environmental *** adapted potential ecological risk assessment emphasized the need to focus on Pb,Cd,and As in future site remediation efforts.

关键词： smelting site potentially toxic elements X-ray fluorescence potential ecological risk machine learning

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The ALMA-QUARKS Survey.Ⅰ.Survey Description and Data Reduction

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Research in Astronomy and Astrophysics 2024年第2期24卷 104-124页

作者：刘训川 tie liu Lei Zhu Guido Garay Hong-li liu Paul Goldsmith Neal Evans kee-Tae Kim Sheng-Yuan liu Fengwei Xu Xing Lu Anandmayee Tej Xiaofeng mai Leonardo Bronfman Shanghuo li Diego Mardones Amelia Stutz ken'ichi Tatematsu ke Wang Qizhou Zhang Sheng-li Qin Jianwen Zhou Qiuyi Luo Siju Zhang Yu Cheng Jinhua He Qilao Gu Ziyang li Zhenying Zhang Suinan Zhang Anindya Saha Lokesh Dewangan Patricio Sanhueza Zhiqiang Shen Shanghai Astronomical Observatory Chinese Academy of SciencesShanghai 200030China Chinese Academy of Sciences South America Center for Astronomy National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China Departamento de Astronomía Universidad de ChileLas Condes7591245 SantiagoChile School of Physics and Astronomy Yunnan UniversityKunming 650091China Jet Propulsion Laboratory California Institute of Technology4800 Oak Grove DrivePasadena CA 91109USA Department of Astronomy The University of Texas at AustinTX 78712-1205USA Korea Astronomy and Space Science Institute 776 Daedeokdae-roYuseong-guDaejeon 34055Republic of Korea Institute of Astronomy and Astrophysics Academia SinicaRoosevelt RoadTaipei 10617China Kavli Institute for Astronomy and Astrophysics Peking UniversityBeijing 100871China Department of Astronomy School of PhysicsPeking UniversityBeijing 100871China Indian Institute of Space Science and Technology Thiruvananthapuram 695547KeralaIndia Max Planck Institute for Astronomy Königstuhl 17D-69117 HeidelbergGermany Departamento de Astronomía Universidad de ConcepciónCasilla 160-CConcepciónChile Nobeyama Radio Observatory National Astronomical Observatory of JapanNational Institutes of Natural Sciences462-2 NobeyamaMinamimakiMinamisakuNagano 384-1305Japan Center for Astrophysics∣Harvard&Smithsonian 60 Garden StreetCambridgeMA 02138USA Max-Planck-Institut für Radioastronomie Auf dem Hügel 69D-53125 BonnGermany School of Astronomy and Space Sciences University of Chinese Academy of SciencesBeijing 100049China National Astronomical Observatory of Japan 2-21-1 OsawaMitakaTokyo181-8588Japan Yunnan Observatories Chinese Academy of SciencesKunming 650216China Physical Research Laboratory NavrangpuraAhmedabad-380009India Astronomical Science Program The Graduate University for Advanced StudiesSOKENDAI2-21-1 OsawaMitakaTokyo 181-8588Japan University of Science and Technology Korea(UST)217 Gajeong-roYuseong-guDaejeon 34113Republic o

This paper presents an overview of the QUARKS survey,which stands for Querying Underlying mechanisms of massive star formation with ALMA-Resolved gas Kinematics and Structures."The QUARKS survey is observing139 massive clumps covered by 156 pointings at Atacama Large Millimeter/submillimeter Array(ALMA)Band 6(λ~1.3 mm).In conjunction with data obtained from the ALMA-ATOMS survey at Band 3(λ~3 mm),QUARKS aims to carry out an unbiased statistical investigation of massive star formation process within protoclusters down to a scale of 1000 *** overview paper describes the observations and data reduction of the QUARKS survey,and gives a first look at an exemplar source,the mini-starburst Sgr B2(M).The wide-b and width(7.5 GHz)and high-angular-resolution(~0."3)observations of the QUARKS survey allow for the resolution of much more compact cores than those could be done by the ATOMS survey,and to detect previously unrevealed fainter filamentary *** spectral windows cover transitions of species including CO,SO,N_(2)D^(+),SiO,H_(30)α,H_(2)CO,CH_(3)CN,and many other complex organic molecules,tracing gas components with different temperatures and spatial *** aims to deepen our understanding of several scientific topics of massive star formation,such as the mass transport within protoclusters by(hub-)filamentary structures,the existence of massive starless cores,the physical and chemical properties of dense cores within protoclusters,and the feedback from already formed high-mass young protostars.

关键词： stars formation-stars kinematics and dynamics-ISM clouds-ISM molecules

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NνDEx-100 conceptual design report

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Nuclear Science and Techniques 2024年第1期35卷 18-33页

作者： Xi-Guang Cao Yan-Long Chang Kai Chen Emilio Ciuffoli li-Min Duan Dong-liang Fang Chao-Song Gao Surja K.Ghorui Peng-Chong Hu Qiang Hu Si-Yuan Huang Ze-Yu Huang Lei Lang Yu-Lan li Zhi-Jie li tian-Yu liang Jun liu Chen-Gui Lu Fa-Tai mai Yuan Mei Hao Qiu Xiang-Ming Sun Xiao-Xing Tang Hu-lin Wang Qian-Ming Wang Le Xiao mu-Yun Xiao Jian-Yu Xin Nu Xu Peng Yang Yi-Chen Yang Zhen Yang Zong-Yang Yu Dong-liang Zhang Jun-Wei Zhang Cheng-Xin Zhao Dou Zhu NνDEx-100 collaboration Shanghai Advanced Research Institute Chinese Academy of SciencesShanghai 201210China Lanzhou University Lanzhou 730000China Central China Normal University Wuhan 430079China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China Lawrence Berkeley National Laboratory BerkeleyCA 94720USA North China University of Water Resources and Electric Power Zhengzhou 450045China 不详

Observing nuclear neutrinoless double beta (0vββ) decay would be a revolutionary result in particle *** such a decay would prove that the neutrinos are their own antiparticles,help to study the absolute mass of neutrinos,explore the origin of their mass,and may explain the matter-antimatter asymmetry in our universe by lepton number *** propose developing a time projection chamber (TPC) using high-pressure ^(82)SeF_(6) gas and Topmetal silicon sensors for readout in the China Jinping Underground Laboratory (CJPL) to search for neutrinoless double beta decay of82Se,called the NvDEx *** being located at CJPL with the world’s thickest rock shielding,NvDEx combines the advantages of the high Qββ(2.996 MeV) of82Se and the TPC’s ability to distinguish signal and background events using their different topological *** makes NvDEx unique,with great potential for low-background and high-sensitivity 0 vββ***-100,a NvDEx experiment phase with 100 kg of SeF_(6)gas,is being built,with plans to complete installation at CJPL by *** report introduces 0 vββ physics,the NvDEx concept and its advantages,and the schematic design of NvDEx-100,its subsystems,and background and sensitivity estimation.

关键词： Neutrinoless double beta decay time projection chamber ^(82)SeF_(6) China Jinping Underground Laboratory

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液晶空间光调制器及其在自适应光学中的应用

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光通信研究 2024年第2期2期(17)卷 76-87页

作者：李征穆毅梁静远李牧柯熙政西安理工大学自动化与信息工程学院西安710048

液晶空间光调制器(LC-SLM)通过对液晶折射率的调制来实现对光程的控制,在自适应光学中起着重要的作用。文章梳理了国内外LC-SLM的发展现状,对LC-SLM的工作原理和相位标定原理进行了详细介绍,针对LC-SLM在自适应光学中的应用,对国内外LC-... 详细信息

液晶空间光调制器(LC-SLM)通过对液晶折射率的调制来实现对光程的控制,在自适应光学中起着重要的作用。文章梳理了国内外LC-SLM的发展现状,对LC-SLM的工作原理和相位标定原理进行了详细介绍,针对LC-SLM在自适应光学中的应用,对国内外LC-SLM关键技术研究状况进行了讨论,分析总结了西安理工大学在该领域的实验研究。最后展望了LC-SLM的应用前景。

关键词：自适应光学液晶空间光调制器波前畸变校正

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基于调频连续波雷达的人体生命体征检测算法

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计算机应用 2024年第6期44卷 1978-1986页

作者：李牧骆宇柯熙政西安理工大学自动化与信息工程学院西安710048 西安市无线光通信与网络研究重点实验室(西安理工大学) 西安710048

针对现有雷达非接触生命体征检测精度低、实时性差等问题,提出一种基于调频连续波(FMCW)雷达的人体生命体征检测算法。首先,通过毫米波雷达获取生命体征信号;其次,利用改进的经验小波变换(EWT)算法,实现生命体征信号的自适应分解和重构... 详细信息

针对现有雷达非接触生命体征检测精度低、实时性差等问题,提出一种基于调频连续波(FMCW)雷达的人体生命体征检测算法。首先,通过毫米波雷达获取生命体征信号;其次,利用改进的经验小波变换(EWT)算法,实现生命体征信号的自适应分解和重构,通过引入麻雀搜索算法(SSA)和模糊熵(FE)寻找频谱分割线的最优值;最后,通过改进频率插值的估计算法计算心率和呼吸频率。通过与医用重症监护仪进行对比实验验证所提算法的优越性和鲁棒性。实验结果表明,所提算法相较于小波变换(WT)算法、CEEMD(Complementary Ensemble Empirical Mode Decomposition)算法和VMD(Variational Mode Decomposition)算法,均方误差(MSE)分别减小了77.65、27.25和21.05,平均绝对百分比(MAPE)分别减小了7.33、4.33和3.42个百分点,实时性分别提高了0.72 s, 16.74 s和1.87 s。同时,利用所提算法也实现了对心率变异性(HRV)的检测。

关键词：毫米波雷达经验小波变换生命体征心率变异性麻雀搜索算法

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肾癌根治术后6年伴全胰腺转移一例

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中国CT和MRI杂志 2024年第3期22卷 184-185页

作者：马柯潘燚琪麦筱莉徐州医科大学鼓楼临床学院医学影像科江苏南京210008 南京医科大学鼓楼临床医学院医学影像科江苏南京210008 南京大学医学院附属鼓楼医院医学影像科江苏南京210008

肾透明细胞癌胰腺转移患者往往缺乏特异性症状,需引起临床医师的重视。当患者有肾癌根治手术史时,在长期随访中出现其他器官的病灶时,应首先考虑肾癌转移。本文主要报道一例肾癌根治术后,患者行胰腺转移瘤切除继发全胰腺等其他器官转移... 详细信息

肾透明细胞癌胰腺转移患者往往缺乏特异性症状,需引起临床医师的重视。当患者有肾癌根治手术史时,在长期随访中出现其他器官的病灶时,应首先考虑肾癌转移。本文主要报道一例肾癌根治术后,患者行胰腺转移瘤切除继发全胰腺等其他器官转移,临床工作中罕见,以便为后续临床工作提供参考。

关键词：透明细胞肾细胞癌胰腺转移胰腺转移瘤切除术

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