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单节段镜下融合治疗合并骨质疏松症的腰椎退变性疾病的近期疗效

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中国脊柱脊髓杂志 2024年第8期34卷 834-842页

作者：刘仲宇董健文陈子豪杨阳齐佳坤戎利民中山大学附属第三医院脊柱外科、广东省微创脊柱外科质量控制中心、广东省微创脊柱外科工程技术研究中心广州市510630

目的:探讨单节段镜下融合术治疗合并骨质疏松症的腰椎退变性疾病的临床疗效。方法:纳入2018年6月~2022年2月因腰椎退行性疾病接受腰椎单节段镜下融合手术,且住院期间完善双能X线吸收法(dual-energy X-ray absorptiometry,DXA)骨密度检... 详细信息

目的:探讨单节段镜下融合术治疗合并骨质疏松症的腰椎退变性疾病的临床疗效。方法:纳入2018年6月~2022年2月因腰椎退行性疾病接受腰椎单节段镜下融合手术,且住院期间完善双能X线吸收法(dual-energy X-ray absorptiometry,DXA)骨密度检测的病例24例,其中男7例、女17例;年龄44~80岁,平均66.0±9.9岁,术后随访时间21.6±12.6(3~47)个月。按是否合并骨质疏松症分为2组,其中8例合并骨质疏松症(骨质疏松组),16例不合并骨质疏松症(对照组)。骨质疏松症病例及时予抗骨松治疗。镜下融合手术均采用工作内径7.1mm的同轴水介质大通道脊柱内镜。比较两组患者一般资料及围手术期指标,术前、术后3d及末次随访时使用疼痛视觉模拟量表(visual analogue scale,VAS)评分、日本骨科协会(Japanese Orthopaedic Association,JOA)评分及Oswestry功能障碍指数(Oswestry disability index,ODI)评价临床疗效。术后3d复查腰椎数字X线摄影(digital radiography,DR)及腰椎计算机体层摄影(computed tomography,CT)评价减压与内固定情况;末次随访时行腰椎DR者,评估螺钉松动及融合器沉降情况;术后随访超过6个月且复查腰椎CT者,判断融合情况。记录并比较两组患者并发症发生情况。结果:两组患者的年龄、性别、术前诊断、术前椎间隙高度、手术节段,术前VAS、JOA评分及ODI等均无统计学差异。骨质疏松组最低骨密度平均值T=-3.2±0.6,明显低于对照组T=-1.4±0.8(P=0.000)。骨质疏松组平均手术时间为429.9±135.2min,对照组平均手术时间327.4±68.2min,差异具有统计学意义(P=0.020)。术中影像辅助方式、出血量、单侧入路双侧减压(unilateral laminotomy for bilateral decompression,ULBD)例数、术后椎间隙高度、住院天数两组间无统计学差异。两组术后3d及末次随访时腰痛/腿痛VAS评分、JOA评分及ODI均较术前明显改善,差异有统计学意义(P<0.05);但两组间比较均无统计学差异。两组术后3d椎间隙高度与术前比较显著增加(P<0.01),组间比较无统计学差异。并发症方面,骨质疏松组1例严重骨质疏松症患者(腰椎T=-4.4)术中置入融合器时损伤终板,出现融合器沉降,但无症状,无需特殊处理;另有1例硬膜撕裂合并神经根损伤,经神经营养等对症处理后症状缓解。末次随访时18例复查腰椎DR,随访时间超过6个月者10例复查腰椎CT,骨质疏松组与对照组相比,融合器沉降率、螺钉松动率与融合率均无统计学差异(P=1.000)。结论:单节段镜下融合术治疗合并骨质疏松的腰椎退变性疾病近期疗效安全有效。

关键词：镜下融合骨质疏松症脊柱退变性疾病脊柱微创手术临床疗效

福州国家森林公园游憩者场所感知与环境行为对健康效益评估的影响

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浙江农林大学学报 2024年第3期41卷 634-643页

作者：朱晋立林笑秋邵宏睿李文枭董建文郑宇福建农林大学风景园林与艺术学院福建福州350002 闽江学院美术学院福建福州350108

【目的】场所依恋和环境行为是探究游憩者与环境交互所形成的结果,与景观知觉的构建紧密联系,对于探讨森林公园与游憩者健康影响关系具有重要意义。结合游憩者场所感知与环境行为视角探讨森林公园健康效益的内在转化机制。【方法】以福... 详细信息

【目的】场所依恋和环境行为是探究游憩者与环境交互所形成的结果,与景观知觉的构建紧密联系,对于探讨森林公园与游憩者健康影响关系具有重要意义。结合游憩者场所感知与环境行为视角探讨森林公园健康效益的内在转化机制。【方法】以福州国家森林公园为研究样地,结合游憩者“感知评价—情感响应—行为实践”视角,构建景观知觉、场所依恋、环境行为与健康效益评估之间的关系模型,并通过结构方程模型解析四者之间的影响关系。【结果】①自然属性感知、设施属性感知、文化属性感知、空间属性感知是构成景观知觉的主要因素,影响系数分别为0.777、0.696、0.743、0.755,景观知觉对场所依恋有显著影响,影响效应达74.4%;②景观知觉能显著影响环境行为水平,直接影响效应达39.8%,间接影响效应达44.3%,场所依恋是两者影响关系中的中介变量。③景观知觉对健康效益评估产生30.2%的直接影响效应,并通过场所依恋和环境行为的中介作用对健康效益评估产生50.9%的间接影响效应。【结论】通过结构关系模型检验分析,揭示了游憩者在森林公园中的健康恢复是“感知评价—情感响应—行为实践”要素相互作用形成的复合体系。后续可结合媒体大数据以及科学的人体健康测定器材拓展研究的深度和广度。

关键词：森林公园景观知觉场所依恋环境行为健康效益

Development of a nurse robot serving in infectious disease isolation wards

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High Technology Letters 2007年第3期13卷 261-266页

作者：孙立宁 Zhao jianwen Du Zhijiang dong Wei Robotics Institute Harbin Institute of Technology Harbin 150001 P.R. China

A prototype of nurse robot system serving in infectious disease wards is developed by analyzing the systems requirement. Firstly, the type synthesis and dimension synthesis for optimizing the workspace are presented. Secondly, the tele-control system based on velocity control mode is introduced, and tele-control program is written. Finally, the imitation of position workspace and experiment of transforming objects from buffer area to isolation area are carried out.

关键词： medical robot nurse robot isolation ward parallel mechanism

经椎间孔入路与经关节突入路脊柱内镜下腰椎椎间融合术的疗效与安全性比较

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中国脊柱脊髓杂志 2024年第4期34卷 339-347页

作者：陈子豪董健文刘仲宇陈瑞强齐佳坤 Fawad Ullah 张涛涛戎利民中山大学附属第三医院、广东省微创脊柱外科质量控制中心、广东省微创脊柱外科工程技术研究中心广州市510630

目的:比较单孔同轴大通道内镜下单节段腰椎椎间融合术(镜下融合)经椎间孔入路与经关节突入路的疗效与安全性。方法:纳入2018年6月~2022年2月共46例单节段镜下融合病例,男18例、女28例;年龄40~80岁,平均60.9±10.5岁,术后随访时间3~47个... 详细信息

目的:比较单孔同轴大通道内镜下单节段腰椎椎间融合术(镜下融合)经椎间孔入路与经关节突入路的疗效与安全性。方法:纳入2018年6月~2022年2月共46例单节段镜下融合病例,男18例、女28例;年龄40~80岁,平均60.9±10.5岁,术后随访时间3~47个月。按手术入路不同分为两组,其中18例为经椎间孔入路,28例为经关节突入路,均采用工作内径7.1mm的大通道脊柱内镜。术前、术后3d及末次随访时使用腰椎Oswestry功能障碍指数(Oswestry disability index,ODI)、腰痛及腿痛的视觉模拟评分(visual analogue scale,VAS)、日本骨科协会评分(Japanese Orthopaedic Association,JOA)评价临床疗效。术后3d复查腰椎正侧位X线片及腰椎CT评价减压与内固定情况。术后随访超6个月且复查腰椎CT者,按照Bridwell标准判断融合情况。结果:两组患者的年龄、性别、术前诊断、术前椎间隙高度、手术节段,术前ODI评分、VAS评分及JOA评分等均无统计学差异(P>0.05)。经椎间孔入路组72.2%的患者术前存在单侧根性症状,而经关节突入路组则有64.3%术前为双侧根性症状,二者存在统计学差异(P=0.020)。经椎间孔入路组手术时间平均327.7±89.9min,住院时间平均14.8±6.0d;经关节突入路组手术时间平均385.9±96.7min,住院时间平均19.5±7.8d,两组差异具有统计学意义(P=0.047;P=0.038)。经关节突入路组75%的患者接受了单侧入路双侧减压。两组术后及末次随访ODI评分、腰痛及腿痛VAS评分、JOA评分均较术前明显改善,差异有统计学意义(P0.05)。两组术后椎间隙高度与术前比较显著增加(P0.05)。两组术中、术后均无严重并发症发生,并发症发生率比较无统计学意义(P>0.05)。末次随访时间大于6个月且复查CT者共21例,其中20例(95.2%)达到骨性融合,两组融合率比较无统计学差异。结论:经椎间孔入路与经关节突入路单孔同轴大通道内镜下行单节段腰椎椎间融合均安全、有效,经椎间孔入路的手术时间较短,住院时间较短。

关键词：腰椎椎间融合术内镜经椎间孔入路经关节突入路

Rectangular dielectric metagrating for high-efficiency diffraction with large-angle deflection

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Chinese Optics Letters 2020年第7期18卷 111-117页

作者： Weiyi Shi Weimin Deng Weinan Liu Zepeng Zhuang Zhibin Fan jianwen dong School of Physics&State Key Laboratory of Optoelectronic Materials and Technologies Sun Yat-sen UniversityGuangzhou 510275China

In this Letter,we propose a metagrating consisting of simple rectangular bars for nearly unity anomalous diffraction with a large deflection *** analysis performed by the scattering-matrix method shows that such exceptional beam steering derives from the couplings of the two lowest propagation waveguide-array-modes and their constructive *** tolerance of the incident angle for a high diffraction efficiency(e.g.,>90%)is within a range of 33°.We also discuss that such an advantage still exists after considering a reasonable loss and *** envision that the proposed strategy may have wide use in the field of high-performance wavefront-shaping applications.

关键词： metagrating high-efficiency diffraction large-angle deflection

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基于公众科学的城市绿地生物多样性研究进展

中国城市林业 2024年第4期22卷 84-91页

作者：黄雅凌傅伟聪陈梓茹任维董建文福建农林大学风景园林与艺术学院福州350100 福建理工大学建筑与城乡规划学院福州350118

城市绿地的生物多样性对城市生态环境具有重要价值,利用公众科学进行相关研究具有独特优势,但基于公众科学的城市绿地生物多样性研究尚未得到系统性回顾。文章通过CiteSpace软件对中国知网和Web of Science数据库中2004—2023年的文献... 详细信息

城市绿地的生物多样性对城市生态环境具有重要价值,利用公众科学进行相关研究具有独特优势,但基于公众科学的城市绿地生物多样性研究尚未得到系统性回顾。文章通过CiteSpace软件对中国知网和Web of Science数据库中2004—2023年的文献进行系统性筛选和分析,结果发现:近20年来公众科学在城市绿地生物多样性研究中呈增长趋势,尤其在近5年关注度急剧上升;现有的公众科学项目以美国居多,如iNaturalist和ebird;论文发表数量在美国、英国、澳大利亚等国家较为集中,而亚洲和非洲地区的国家在发表频次上与欧美国家存在一定差距;研究内容聚焦于物种监测、生境改造、生态教育等;公众科学与技术手段如大数据和人工智能的结合提高了数据分析的科学性、准确性。未来研究应着力提高公众科学素养,深化大数据应用,并强调跨学科合作,推动生物多样性保护和研究的持续发展。

关键词：公众科学城市绿地生物多样性公众参与

Ultracompact topological photonic switch based on valley-vortex-enhanced high-efficiency phases shift

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Light(Science & Applications) 2022年第11期11卷 2646-2654页

作者： Hongwei Wang Gujing Tang Yu He Zhen Wang Xingfeng Li Lu Sun Yong Zhang Luqi Yuan jianwen dong Yikai Su State Key Laboratory of Advanced Optical Communication Systems and Networks Department of Electronic EngineeringShanghai Jiao Tong University200240 ShanghaiChina State Key Laboratory of Optoelectronic Materials and Technologies&School of Physics Sun Yat-sen University510275 GuangzhouChina School of Physics and Astronomy Shanghai Jiao Tong University200240 ShanghaiChina

Topologically protected edge states based on valley photonic crystals(VPCs)have been widely studied,from theoretical verifcation to technical ***,research on integrated tuneable topological devices is still ***,we study the phase-shifting theory of topological edge modes based on a VPC *** from the phase vortex formed by the VPC structure,the optical path of the topological edge mode in the propagation direction is approximately two-fold that of the conventional optical mode in a strip *** experiments,we show a 1.57-fold improvement inπ-phase tuning *** leveraging the highefficiency phase-shifting properties and the sharp-turn features of the topological waveguide,we demonstrate an ultracompact 1×2 thermo-optic topological switch(TOTS)operating at telecommunication wavelengths.A switching power of 18.2 mW is needed with an ultracompact device footprint of 25.66×28.3μm in the wavelength range of 1530-1582 *** the best of our knowledge,this topological photonic switch is the smallest switch of any dielectric or semiconductor 1×2/2×2 broadband optical switches,including thermo-optic and electro-optic *** addition,a high-speed transmission experiment employing the proposed TOTS is carried out to demonstrate the robust transmission of high-speed *** work reveals the phase shifting mechanism of valley edge modes,which may enable diverse topological functional devices in many fields,such as optical communications,nanophotonics,and quantum information processing.

关键词： waveguide tuning valley

Conditional selection with CNN augmented transformer for multimodal affective analysis

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CAAI Transactions on Intelligence Technology 2024年第4期9卷 917-931页

作者： jianwen Wang Shiping Wang Shunxin Xiao Renjie Lin Mianxiong dong Wenzhong Guo College of Computer and Data Science Fuzhou UniversityFuzhouChina College of Computer and Cyber Security Fujian Normal UniversityFuzhouChina Key Laboratory of Network Computing and Intelligent Information Processing Fuzhou UniversityFuzhouChina Digital Fujian Institute of Big Data Security Technology Fujian Normal UniversityFuzhouChina Department of Sciences and Informatics Muroran Institute of TechnologyMuroranJapan

Attention mechanism has been a successful method for multimodal affective analysis in recent years. Despite the advances, several significant challenges remain in fusing language and its nonverbal context information. One is to generate sparse attention coefficients associated with acoustic and visual modalities, which helps locate critical emotional se-mantics. The other is fusing complementary cross‐modal representation to construct optimal salient feature combinations of multiple modalities. A Conditional Transformer Fusion Network is proposed to handle these problems. Firstly, the authors equip the transformer module with CNN layers to enhance the detection of subtle signal patterns in nonverbal sequences. Secondly, sentiment words are utilised as context conditions to guide the computation of cross‐modal attention. As a result, the located nonverbal fea-tures are not only salient but also complementary to sentiment words directly. Experi-mental results show that the authors’ method achieves state‐of‐the‐art performance on several multimodal affective analysis datasets.

关键词： affective computing data fusion information fusion multimodal approaches

Single depth image 3D face reconstruction via domain adaptive learning

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Frontiers of Computer Science 2024年第1期18卷 259-261页

作者： Xiaoxu CAI jianwen LOU Jiajun BU Junyu dong Haishuai WANG Hui YU College of Computer Science and Technology Zhejiang UniversityHangzhou 310013China School of Creative Technologies University of PortsmouthPortsmouth PO12DJUK College of Computer Science and Technology Ocean University of ChinaQingdao 266100China

1 Introduction In this paper,we propose a novel domain-adaptive reconstruction method that effectively leverages deep learning and synthetic data to achieve robust 3D face reconstruction from a single depth *** method applies two domain-adaptive neural networks for predicting head pose and facial shape,*** networks undergo training with a customized domain adaptation strategy,using a combination of auto-labeled synthetic and unlabeled real data.

关键词： networks image learning