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Arthroplasty vs proximal femoral nails for unstable intertrochanteric femoral fractures in elderly patients: a systematic review and metaanalysis

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World Journal of Clinical Cases 2021年第32期9卷 9878-9888页

作者： wen-Huan Chen wen-xuan guo Shi-Hua Gao Qiu-Shi Wei Zi-Qi Li Wei He The Third Clinical Medical School Guangzhou University of Chinese MedicineGuangzhou 510405Guangdong ProvinceChina The First Clinical College Zhejiang Chinese Medical UniversityHangzhou 310000Zhejiang ProvinceChina The First Clinical Medical School Guangzhou University of Chinese MedicineGuangzhou 510405Guangdong ProvinceChina Department of Joint Surgery The Third Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhou 510405Guangdong ProvinceChina

BACKGROUND Proximal femoral nails(PFNs)are the most common method for the treatment of unstable intertrochanteric femoral fractures(IFFs),but postoperative bed rest is *** is a large amount of blood loss during the *** in elderly patients may cause nonunion of fractures and other *** can give patients early weight bearing and reduce financial burden,but whether it can replace PFNs remains *** To compare the clinical outcomes of arthroplasty and PFNs in the treatment of unstable IFFs in elderly *** A search was conducted in the PubMed,Embase,and Cochrane Library databases and included relevant articles comparing arthroplasty and *** search time was limited from January 1,2005 to November 1,*** investigators independently screened studies,extracted data and evaluated the quality according to the inclusion and exclusion *** to the research results,the fixed effect model or random effect model were selected for *** following outcomes were analyzed:Harris Hip score,mortality,complications,operation time,blood loos,hospital stay,weight-bearing time,fracture classification and type of *** We analyzed four randomized controlled trials that met the requirements.A total of 298 patients were included in these *** to the AO/OTA classification,there are 20 A1 types,136 A2 types,42 A3 types and 100 unrecorded *** outcome:The Harris Hip Score at the final follow-up of the PFN group was higher[mean difference(MD):9.01,95%confidence interval(CI):16.57 to 1.45),P=0.02].There was no significant difference between the two groups in the rate of overall mortality[risk ratio(RR):1.44,P=0.44]or the number of complications(RR:0.77,P=0.05).Secondary outcomes:blood loss of the arthroplasty group was higher(MD:241.01,95%CI:43.06–438.96,P=0.02);the operation time of the PFN group was shorter(MD:23.12,95%CI:10.46–35.77,P=0.0003);and the length of

关键词： Arthroplasty Proximal femoral nail Intertrochanteric femoral fracture Elderly Meta-analysis Systematic review

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Comb-like Poly(N-(2-hydroxypropyl) methacrylamide) Doxorubicin Conjugates: The Influence of Polymer Architecture and Composition on the Biological Properties

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Chinese Journal of Polymer Science 2018年第11期36卷 1225-1238页

作者： Hao Tang Jin Tang Yi Shen wen-xuan guo Min Zhou Rui-Hua Wang Ni Jiang Zhi-Hua Gan Qing-Song Yu The State Key Laboratory of Organic-inorganic Composites Beijing Laboratory of Biomedical Materials Beijing University of Chemical Technology College of Life Science and Technology Beijing University of Chemical Technology Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology

The synthesis and structure-property correlation of poly（N-（2-hydroxypropyl） methacrylamide）（PHPMA） conjugates with various architectures including random, block, branched or star-like structures and compositions have been thoroughly explored. However, related synthesis and structure-property data are still lacking for comb-like PHPMA. In this work, we report the synthesis of comb-like PHPMA copolymer-doxorubicin （DOX） conjugates with different backbone/side-chain lengths and location of drug moieties. Well-defined comb-like PHPMA-DOX conjugates are obtained via the combination of controlled radical polymerization and fractional precipitation techniques. The influences of structural factors on the biological properties such as cellular uptake, blood circulation and tumor accumulation have been investigated. Long blood circulation and efficient tumor accumulation can be achieved by proper control of the comb number, length and location of drug moieties. These facile comb-like structures possess great potentials in future theranostics for brachytherapy or surgical navigation.

关键词： Poly(N-(2-hydroxypropyl) methacrylamide) Comb-like copolymer Anticancer drug delivery Synthesis Structure-property correlation

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Reference values of gait parameters in healthy Chinese university students: A cross-sectional observational study

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World Journal of Clinical Cases 2023年第29期11卷 7061-7074页

作者： Jin-Sheng Yu Chen Zhuang wen-xuan guo Jun-Jie Chen Xiang-Ke Wu Wei Xie Xing Zhou Hui Su Yi-xuan Chen Li-Kang Wang wen-Kai Li Kun Tian Ru-Jie Zhuang The First School of Clinical Medicine Zhejiang Chinese Medical UniversityHangzhou 310053Zhejiang ProvinceChina Department of Orthopedics The First Affiliated Hospital of Zhejiang Chinese Medical UniversityZhejiang Provincial Hospital of Traditional Chinese MedicineHangzhou 310003Zhejiang ProvinceChina Alberta Institute Wenzhou Medical UniversityWenzhou 325035Zhejiang ProvinceChina

BACKGROUND Gait is influenced by race,age,and diseases *** values for gait are closely related to numerous health *** gain a comprehensive understanding of gait patterns,particularly in relation to race-related pathologies and disorders,it is crucial to establish reference values for gait in daily life considering sex and ***,our objective was to present sex and age-based reference values for gait in daily life,providing a valuable foundation for further research and clinical *** To establish reference values for lower extremity joint kinematics and kinetics during gait in asymptomatic adult women and *** Spatiotemporal,kinematics and kinetics parameters were measured in 171 healthy adults(70 males and 101 females)using the computer-aided soft tissue foot *** curve statistical parametric mapping was performed using independent and paired-samples *** Compared with females,males required more time(cycle time,double-limb support time,stance time,swing time,and stride time),and the differences were statistically *** addition,the step and stride lengths of males were *** to males,female cadence was faster,and statures-per-second and stride-per-minute were *** were no statistical differences in speed and stride width between the two *** adjusting for height,it was observed that women walked significantly faster than men,and they also had a higher ***,in terms of step length,stride length,and stride width,both genders exhibited *** We established reference values for gait speed and spatiotemporal gait parameters in Chinese university *** contributes to a valuable database for gait assessment and evaluation of preventive or rehabilitative programs.

关键词： Gait analysis Gait Reference values Spatiotemporal parameters Kinematics Chinese

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石门县地质灾害成因及防治对策研究

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矿冶工程 2013年第6期33卷 114-117页

作者：文选国湖南省常德青峰煤矿湖南石门415300

根据湖南省石门县的地质环境条件、气象条件、人类工程活动的特点,分析了该地地质灾害的成因,并针对区内地质灾害的特点提出了几点防治建议。

关键词：地质灾害成因分析防治对策石门县

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国有矿山企业退出的障碍及政策建议

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矿冶工程 2005年第1期25卷 75-78页

作者：文选国常德青峰煤矿湖南石门415300

资源枯竭的国有矿山企业都将面临退出问题 ,以国有煤炭企业为例。

关键词：国有矿山企业退出障碍政策建议

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武汉某深基坑加固设计实例分析

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岩土工程学报 2014年第S2期36卷 245-249页

作者：刘秀珍程杰林温国炫许水潮中机三勘岩土工程有限公司湖北武汉430030

结合武汉市某基坑支护工程未能按设计图纸施工,在基坑开挖之前及时对基坑进行加固设计,按加固设计后的图纸施工,基坑安全运营,没有出现险情。实践证明,该加固设计是必须的,加固达到预期效果,可为其它类似工程提供应用参考。

关键词：深基坑支护加固设计

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多重大直径同心环形支撑在超深基坑工程中的应用

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岩土工程学报 2014年第S1期36卷 122-126页

作者：程杰林李玉忠刘秀珍温国炫中机三勘岩土工程有限公司湖北武汉430030 无锡市勘察设计研究院有限公司江苏无锡214000

超大、超深基坑支撑布置上难度大,风险高,出土困难。圆环内支撑凭借其优良的后序施工空间与合理的受力特点,被越来越多的工程采用。介绍了多层多重大直径圆环内支撑在大面积超深基坑工程中的应用,节省了工程造价与工期。实施与监测结果... 详细信息

超大、超深基坑支撑布置上难度大,风险高,出土困难。圆环内支撑凭借其优良的后序施工空间与合理的受力特点,被越来越多的工程采用。介绍了多层多重大直径圆环内支撑在大面积超深基坑工程中的应用,节省了工程造价与工期。实施与监测结果表明,整个施工过程达到了安全可控的目标,较好的保护了工程环境,可为其它类似工程提供应用参考。

关键词：深基坑环撑造价工期

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A Simple and Efficient Temporal Concealment Technique for MPEG-4 Video Stream

A Simple and Efficient Temporal Concealment Technique for MP...

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第一届建立和谐人机环境联合学术会议（HHME2005）

作者： DING Xue-wen+ YANG Zhao-xuan guo Ying-chun WANG Zeng-min (School of Electronic Information Engineering, Tianjin University, Tianjin, 300072, China)

Compressed multimedia data streams transmitted over error prone channels, such as wireless networks and internet, are usually corrupted by channel errors. MPEG-4, which is one of the ISO visual coding

关键词： Error Concealment MPEG-4 temporal error concealment Inter4v mode

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Improved Error Detection and Localization Technique for MPEG-4 Video over Noisy Channel

Improved Error Detection and Localization Technique for MPEG...

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第一届建立和谐人机环境联合学术会议（HHME2005）

作者： DING Xue-wen+ YANG Zhao-xuan guo Ying-chun WANG Zeng-min (School of Electronic Information Engineering, Tianjin University, Tianjin, 300072, China)

Transmission of compressed video over error-prone channels requires techniques that are efficient in compressing the video and robust against the channel errors. The application of MPEG-4 in video com

关键词： Error detection error localization MPEG-4 transmission error

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The detection, extraction and parameter estimation of extreme-mass-ratio inspirals with deep learning

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 86-96页

作者： Qianyun Yun wen-Biao Han Yi-Yang guo He Wang Minghui Du Hangzhou Institute for Advanced Study University of Chinese Academy of Sciences Shanghai Astronomical Observatory Chinese Academy of Sciences School of Physics and Astronomy Shanghai Jiao Tong University School of Astronomy and Space Science University of Chinese Academy of Sciences Taiji Laboratory for Gravitational Wave Universe (Beijing/Hangzhou) University of Chinese Academy of Sciences Lanzhou Center for Theoretical Physics Key Laboratory of Theoretical Physics of Gansu Province Key Laboratory of Quantum Theory and Applications of MoE Lanzhou University Institute of Theoretical Physics & Research Center of Gravitation Lanzhou University International Centre for Theoretical Physics Asia-Pacific (ICTP-AP) University of Chinese Academy of Sciences (UCAS) Center for Gravitational Wave Experiment National Microgravity Laboratory Institute of Mechanics Chinese Academy of Sciences

One of the primary goals of space-borne gravitational wave detectors is to detect and analyze extreme-mass-ratio inspirals(EMRIs). This task is particularly challenging because EMRI signals are complex, lengthy, and faint. In this work, we introduce a2-layer convolutional neural network(CNN) approach to detect EMRI signals for space-borne detectors, achieving a true positive rate(TPR) of 96.9% at a 1% false positive rate(FPR) for signal-to-noise ratio(SNR) from 50 to 100. Especially, the key intrinsic parameters of EMRIs such as the mass, spin of the supermassive black hole(SMBH) and the initial eccentricity of the orbit can also be inferred directly by employing a neural network. The mass and spin of the SMBH can be determined at 99% and 92% respectively. This will greatly reduce the parameter spaces and computing cost for the following Bayesian parameter *** model also has a low dependency on the accuracy of the waveform model. This study underscores the potential of deep learning methods in EMRI data analysis, enabling the rapid detection of EMRI signals and efficient parameter estimation.

关键词： gravitational wave EMRIs deep-learing

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