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Current Status and Prospect of Stent Placement for May-Thurner Syndrome

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Current Medical Science 2021年第6期41卷 1178-1186页

作者： Qin LIU Fang LIU Ping LÜ Hong-xiao WU Pin YE Yun YOU zhong YAO Department of Vascular Surgery Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China Department of Nuclear Medicine Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China Donnelly Centre for Cellular and Biomolecular Research University of TorontoTorontoOntario M5S 2E8Canada

Stent implantation has been proven to be safe and has become the first-line intervention for May-Thumer syndrome(MTS),with satisfactory mid-term patency rates and clinical *** research has demonstrated that catheter-directed thrombolysis is the preferred strategy when MTS is combined with deep vein thrombosis after self-expanding stent ***,the stent used for the venous system was developed based on the experience obtained in the treatment of arterial ***,relatively common corresponding complications may come along later,which include stent displacement,deformation,and *** measures such as adopting a stent with a larger diameter,improving stent flexibility,and increasing stent strength have been employed in order to prevent these *** ideal venous stent is presently being evaluated and will be introduced in detail in this review.

关键词： May-Thumer syndrome deep vein thrombosis post-thrombotic syndromes stent stent placement

混凝剂种类对高悬浮物矿井水处理效率的影响研究

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煤炭加工与综合利用 2024年第6期 91-96页

作者：张晓广韩少科谢阳吴凡李传峰钟晓勇李琼呼伦贝尔东明矿业有限责任公司内蒙古呼伦贝尔021500 中煤(北京)环保股份有限公司北京100013 华北科技学院化工安全学院河北三河065201

选用石英重砂加载混凝处理高悬浮矿井水为研究对象,分析矿混凝剂种类(聚合氯化铝(PAC)、非离子型聚丙烯酰胺(PAM)和聚合氯化铁(FeCl_(3))等)对石英重砂加载混凝处理高悬浮物矿井水效率的影响。结果表明:投加适量的PAC有助于提升单位时... 详细信息

选用石英重砂加载混凝处理高悬浮矿井水为研究对象,分析矿混凝剂种类(聚合氯化铝(PAC)、非离子型聚丙烯酰胺(PAM)和聚合氯化铁(FeCl_(3))等)对石英重砂加载混凝处理高悬浮物矿井水效率的影响。结果表明:投加适量的PAC有助于提升单位时间内加载混凝沉淀处理的效率和速率,而过量的PAC投加会降低其处理效率和速率。投加PAM可有助于提升单位时间内加载混凝沉淀处理的效率和速率,但投加量的作用可忽略。适量投加FeCl_(3)可有效提升加载混凝沉淀高悬浮煤粉矿井水的去除效率和速率,但对高悬浮岩粉矿井水的作用较弱。该研究成果为保障重砂加载混凝处理高悬浮矿井水的效率,保障我国煤炭矿区水资源综合利用具有重要的作用。

关键词： PAC PAM FeCl_(3) 混凝沉淀矿井水研究

黑孢藻粉对Cu^(2+)和Cd^(2+)的吸附特性研究

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南宁师范大学学报（自然科学版） 2024年第2期41卷 97-105页

作者：杨小霞钟俏君庄炜东周洁华赵志娟南宁师范大学地理科学与规划学院广西南宁530100 南宁师范大学北部湾环境演变与资源利用教育部重点实验室广西南宁530100 南宁师范大学环境与生命科学学院广西南宁530100 南宁师范大学广西山地生态系统动植物进化与保护重点实验室广西南宁530100

重金属污染对水生态系统的影响日益严重,利用藻类去除水体中的重金属,已越来越受到研究者的关注。本研究以黑孢藻粉为生物吸附材料,探究其对Cu^(2+)和Cd^(2+)的吸附作用。通过分批实验研究不同的pH、温度、初始离子浓度、吸附时间对黑... 详细信息

重金属污染对水生态系统的影响日益严重,利用藻类去除水体中的重金属,已越来越受到研究者的关注。本研究以黑孢藻粉为生物吸附材料,探究其对Cu^(2+)和Cd^(2+)的吸附作用。通过分批实验研究不同的pH、温度、初始离子浓度、吸附时间对黑孢藻粉吸附效果的影响,并采用动力学、热力学、等温模型对吸附特性进行探讨。结果表明,黑孢藻粉在pH为6和7时对Cu^(2+)和Cd^(2+)的吸附效果最佳,吸附量可达13.0 mg/g和13.4 mg/g;随着初始离子浓度的增加,黑孢藻粉对Cu^(2+)和Cd^(2+)的吸附量逐渐升高,当浓度为100 mg/L时,吸附量分别为26.7 mg/g和22.9 mg/g;升温可促进黑孢藻粉吸附Cu^(2+)和Cd^(2+),在30℃时对两种离子的吸附量均大于11.0 mg/g。热力学研究表明黑孢藻粉对Cu^(2+)和Cd^(2+)的吸附为吸热反应;等温线分析显示黑孢藻粉吸附Cu^(2+)和Cd^(2+)的过程分别符合Freundlich和Langmuir模型;Cu^(2+)和Cd^(2+)的准二级动力学模型拟合效果较好,相关系数均大于0.9,即吸附过程受化学反应控制。

关键词：黑孢藻粉影响因素 Cu^(2+) Cd^(2+) 吸附特性

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狂犬病病毒GX074株P-M^(S20F)突变体构建及其生长特性鉴定

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南方农业学报 2024年第1期55卷 253-262页

作者：彭璟李文芳陆丽莹韦显凯李晓宁罗廷荣广西大学动物科学技术学院广西南宁530004 亚热带农业生物资源保护与利用国家重点实验室广西南宁530004

【目的】明确狂犬病病毒(RABV)强毒株GX074的P蛋白和M蛋白第20位苯丙氨酸(Phe)替换至弱毒株r RC-HL的重组突变体在宿主细胞内的生长特性,为P蛋白和M蛋白转录复制机理研究提供理论依据。【方法】运用反向遗传技术以强毒株GX074的M蛋白第2... 详细信息

【目的】明确狂犬病病毒(RABV)强毒株GX074的P蛋白和M蛋白第20位苯丙氨酸(Phe)替换至弱毒株r RC-HL的重组突变体在宿主细胞内的生长特性,为P蛋白和M蛋白转录复制机理研究提供理论依据。【方法】运用反向遗传技术以强毒株GX074的M蛋白第20位Phe替换弱毒株r RC-HL(GX074P)的M蛋白第20位丝氨酸(Ser),构建r RC-HL(GX074P-M^(S20F))突变体感染性c DNA克隆并拯救病毒。以重组突变体感染BSR/T7-9细胞,进行多步生长曲线测定,比较重组突变体与亲本毒株的生长能力,采用Western blotting检测N蛋白、P蛋白和M蛋白相对表达水平,利用实时荧光定量PCR检测N基因、P基因和M基因的相对表达量。【结果】经RT-PCR和测序鉴定,拯救的突变体r RC-HL(GX074P-M^(S20F))M蛋白第20位Ser成功替换为Phe。多步生长曲线测定结果显示,构建的重组突变体在感染24、48、72和96 h后,病毒滴度均高于亲本弱毒株r RC-HL和对照弱毒株r RC-HL(GX074PM1),平均约为亲本弱毒株r RC-HL的10倍。在蛋白表达水平上,r RC-HL(GX074P-M^(S20F))毒株在感染48 h后,N蛋白和M蛋白相对表达水平均极显著高于亲本弱毒株r RC-HL(P<0.01),说明强毒株GX074的P蛋白联合M蛋白第20位Phe替换至弱毒株r RC-HL后,增加了突变体N蛋白和M蛋白表达。感染24和48 h后,r RC-HL(GX074P-M^(S20F))毒株N基因、P基因和M基因的相对表达量均高于亲本弱毒株r RC-HL和对照弱毒株r RC-HL(GX074PM1)。【结论】强毒株GX074的M蛋白第20位Phe替换可提高病毒的增殖能力,同时增强病毒的复制与转录能力,M蛋白第20位Phe可能是影响病毒复制和转录的关键位点。

关键词：狂犬病病毒(RABV) P蛋白 M蛋白生长特性反向遗传

Design of the yielding support used highly deformable elements for a tunnel excavated in squeezing rock

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Journal of Mountain Science 2023年第5期20卷 1458-1468页

作者： TIAN Hong-ming TIAN Yun CHEN Wei-zhong TAN Xian-jun SHU xiao-yun LIU Xia-lin State Key Laboratory of Geomechanics and Geotechnical Engineering Institute of Rock and Soil MechanicsChinese Academy of SciencesWuhan 430071China Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province School of Civil EngineeringShaoxing UniversityShaoxing 312000China College of Civil and Transportation Engineering Hohai UniversityNanjing 210024China China communications second highway survey and design institute Co. Ltd.Wuhan 430058China

Yielding support is often used in the squeezing tunnel to prevent damage to the lining induced by large deformation of the surrounding *** Deformable Elements(HDE)which is often installed along the circumferential direction of the shotcrete lining is a common type of yielding *** determine the yield parameters of HDE,the support characteristic of the lining using HDE and the ground pressure considering strain-softening of soft rock were analyzed by an analytical *** analytical solution showed that when considering the strain-softening of squeezing ground,the ground pressure has a non-zero minimum *** minimum value of ground stress can be used to determine the constant yield stress of the HDE,and the corresponding deformation of the minimum ground pressure can be used to determine the deformation capacity of the *** on the variation in the design constant yield stress and yield displacement of HDE with the in-situ stress and the mechanical parameters of the soft rock,equations were proposed for determining of the yield parameters of the HDE.

关键词： Highly deformable elements Squeezing tunnel Yielding support Strain-softening behavior

Retrospective evaluation of lymphatic and blood vessel invasion and Borrmann types in advanced proximal gastric cancer

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World Journal of Gastrointestinal Oncology 2019年第8期11卷 642-651页

作者： Shan Gao Guo-Hui Cao peng Ding Yang-Yang Zhao peng Deng Bin Hou Kai Li xiao-Fang Liu Department of Gynecology and Obstetrics Shengjing Hospital of China Medical UniversityShenyang 110001Liaoning ProvinceChina The first department of oncology Hebei general HospitalShijiazhuangHebei Province 050051China Department of Surgical Oncology the First Affiliated Hospital of China Medical UniversityShenyang 110001Liaoning ProvinceChina School of Public Health China Medical UniversityShenyang 110001Liaoning ProvinceChina

BACKGROUND The Borrmann classification system is used to describe the macroscopic appearance of advanced gastric cancer,and Borrmann typeⅣdisease is independently associated with a poor *** To evaluate the prognostic significance of lymphatic and/or blood vessel invasion(LBVI)combined with the Borrmann type in advanced proximal gastric cancer(APGC).METHODS The clinicopathological and survival data of 440 patients with APGC who underwent curative surgery between 2005 and 2012 were retrospectively *** In these 440 patients,LBVI+status was associated with Borrmann typeⅣ,low histological grade,large tumor size,and advanced pT and pN *** 5-year survival rate of LBVI+patients was significantly lower than that of LBVI– patients,although LBVI was not an independent prognostic factor in the multivariate *** significant difference in the prognosis of patients with Borrmann typeⅢ/LBVI+disease and patients with Borrmann typeⅣdisease was ***,we proposed a revised Borrmann typeⅣ(r-BorⅣ)as Borrmann typeⅢplus LBVI+,and found that r-BorⅣwas associated with poor prognosis in patients with APGC,which outweighed the prognostic significance of pT *** LBVI is related to the prognosis of APGC,but is not an independent prognostic *** status can be used to differentiate Borrmann typesⅢandⅣ,and the same approach can be used to treat r-BorⅣand Borrmann typeⅣ.

关键词： Proximal gastric cancer Lymphatic and/or blood vessel invasion Borrmann types Prognosis

Interwoven nickel(II)-dimethylglyoxime nanowires in 3D nickel foam for dendrite-free lithium deposition

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Chinese Chemical Letters 2022年第4期33卷 2165-2170页

作者： Tianyi Zhou Yanlu Mu Jianyang Wu Bing zhong Chengkai Yang Qian Wang Wen Liu Henghui Zhou peng Jiang CAS Key Laboratory of Standardization and Measurement for Nanotechnology CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing 100190China College of Chemistry and Molecular Engineering Peking UniversityBeijing 100871China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Chemical Resource Engineering College of ChemistryBeijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029China College of Materials Science and Engineering Fuzhou UniversityFuzhou 350108China Institute of Energy Innovation College of Materials Science and EngineeringTaiyuan University of TechnologyTaiyuan 030024China

Metal skeletons,such as Nickel Foam(NF) has attracted worldwide interests as stable host for lithium metal anode because of its high stability,large specific surface area and high ***,most metal skeletons have lithophobic surface and uneven current distribution that result in sporadic lithium nucleation and uncontrolled dendrites ***,we describe a sequential immersing strategy to generate interwoven Nickel(Ⅱ)-dimethylglyoxime(Ni-DMG) nanowires at NF to obtain composite skeleton(NDNF),which can be used as an stable host for Li metal *** Ni-DMG has proved effective to realize uniform lithium nucleation and dendrite-free lithium *** with the three dimensional(3 D) hierarchical porous structure,the composite host shows a significantly improved coulombic efficiency(CE) than pristine commercial nickel ***,the corresponding Li‖Li symmetrical cells can run more than 700 h with low voltage hysteresis 22 mV at 1.0 mA/cm^(2),and Li@NDNF‖LiFePO;full-cell exhibits a high capacity retention of 82.03% at 1.0 C during 630 *** results proved the effectiveness of metal-organic complexes in governing Li metal growth and can be employed as a new strategy for dendrite-free Li metal anode and safe Li metal batteries(LMBs).

关键词： Nickel(II)-dimethylglyoxime Nickel foam Metal-organic complex Uniform nucleation Dendrite-free

Dose response and time course of manganeseenhanced magnetic resonance imaging for visual pathway tracing in vivo

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Neural Regeneration Research 2016年第7期11卷 1185-1190页

作者： Wei-ling Wang Hui Xu Ying Li Zhi-zhong Ma xiao-dong Sun Yun-tao Hu Department of Ophthalmology Beijing Tsinghua Changgung HospitalTsinghua University Medical Center Department of Ophthalmology General Hospital of Ningxia Medical University Department of Radiology Peking University Third Hospital Peking University Eye Center Peking University Third HospitalKey Laboratory of Vision Loss and RestorationMinistry of Education Department of Ophthalmology Shanghai Jiao Tong University Affiliated First People's Hospital

Axonal tracing is useful for detecting optic nerve injury and regeneration,but many commonly used methods cannot be used to observe axoplasmic flow and synaptic transmission in ***（Mn^2＋）-enhanced magnetic resonance imaging（MEMRI） can be used for in vivo longitudinal tracing of the visual ***,we explored the dose response and time course of an intravitreal injection of Mn Cl2 for tracing the visual pathway in rabbits in vivo using *** found that 2 m M Mn Cl2 enhanced images of the optic nerve but not the lateral geniculate body or superior colliculus,whereas at all other doses tested（5–40 m M）,images of the visual pathway from the retina to the contralateral superior colliculus were significantly *** images were brightest at 24 hours,and then decreased in brightness until the end of the experiment（7 days）.No signal enhancement was observed in the visual cortex at any concentration of Mn *** results suggest that MEMRI is a viable method for temporospatial tracing of the visual pathway in *** enhancement in MEMRI depends on the dose of Mn Cl2,and the strongest signals appear 24 hours after intravitreal injection.

关键词： tracing detecting optic brightness retina viable synaptic until cortex fitting

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论《周易》的“中行”观念及其思想史意义

吉林师范大学学报（人文社会科学版） 2024年第4期52卷 45-51页

作者：秦晓西北大学中国思想文化研究所陕西西安710127

“中行”是《周易》的重要观念,是中正之道的体现。《周易》经文从君臣行事和道德品质两方面对“中行”进行论述,是为政之道的主要原则。《周易》传文对“中行”观念进行阐发,凸显“中行”在道德修养上的突出作用和地位。先秦儒家普遍... 详细信息

“中行”是《周易》的重要观念,是中正之道的体现。《周易》经文从君臣行事和道德品质两方面对“中行”进行论述,是为政之道的主要原则。《周易》传文对“中行”观念进行阐发,凸显“中行”在道德修养上的突出作用和地位。先秦儒家普遍重视“中行”,孔孟更将其与“中道”“中庸”等结合起来,成为儒家道德与政治所追求的至德。汉唐至宋明时期,对“中行”观念的诠释呈现出从象数到义理的思想演变。“中行”蕴含着对“中”的崇尚,是道德修养和社会治理的理想境界。依“中”而“行”、全面考虑、不走极端、坚守道义,对化解当今时代发展中的矛盾有重要的启示意义。

关键词：《周易》中行诠释意义启示