期刊文献+
共找到989篇文章
< 1 2 50 >
每页显示 20 50 100
基于TCGA数据库资料评估头颈鳞状细胞癌患者Klotho基因表达与临床预后的关系
1
作者 张学聪 陈秉辉 +2 位作者 徐常艳 常方远 曹华 《中国耳鼻咽喉头颈外科》 2025年第1期48-50,共3页
目的探讨基于癌症基因组图谱(TCGA)数据库资料评估头颈鳞状细胞癌(head neck squamous cell carcinoma,HNSCC)患者Klotho基因表达对临床预后的影响。方法研究通过检索TCGA数据库收集HNSCC患者Klotho基因、微管相关蛋白轻链3(Microtubule... 目的探讨基于癌症基因组图谱(TCGA)数据库资料评估头颈鳞状细胞癌(head neck squamous cell carcinoma,HNSCC)患者Klotho基因表达对临床预后的影响。方法研究通过检索TCGA数据库收集HNSCC患者Klotho基因、微管相关蛋白轻链3(Microtubule-associated protein light chain 3,MAPLC3)、NOP2/Sun RNA甲基转移酶2(NOP2/Sun RNA methyltransferase 2,NSUN2)的表达及随访预后资料,根据Klotho基因表达水平分为低表达组(n=87例)、中表达组(n=87例)和高表达组(n=88例)。描绘Kaplan-Meier曲线分析Klotho基因表达对临床预后的影响,同时评价Klotho基因表达与MAPLC3及NSUN2的相关性。结果不同组别患者一般临床特征资料比较差异无统计学意义(P>0.05)。高表达组患者中位总生存率(overall survival,OS)显著高于低表达组(P<0.05)。与高表达组相比,低表达组风险比为0.62(95%CI:0.44~0.87,P<0.05)。HNSCC患者中Klotho基因与MAPLC3表达水平呈正相关(r=0.19,P=0.00),而与NSUN2表达水平呈负相关(r=-0.17,P=0.00)。结论Klotho基因表达与HNSCC患者临床预后有关,同时该基因可能影响下游MAPLC3及NSUN2的表达。 展开更多
关键词 头颈鳞状细胞癌(Squamous Cell Carcinoma of Head and Neck) 预后(Prognosis) Klotho基因(Klotho Gene) 微管相关蛋白轻链3(Microtubule-associated protein light chain 3) NOP2/Sun RNA甲基转移酶2(NOP2/Sun RNA methyltransferase 2)
暂未订购
Influence of shaped charge jet state on its interaction with ERA flying plate
2
作者 Nicolas Reboul Ashwin Chinnayya +5 位作者 Frederic Paintendre Simon Dalle Piagge Vincent Jaulin Jerome Limido Anthony Colle Fabien Rondot 《Defence Technology(防务技术)》 2025年第7期355-370,共16页
The Explosive Reactive Armors(ERA)are really efficient at reducing Shaped Charge Jet(SCJ)performance.The main destabilizing mechanism is the transverse movement of the front and rear moving plates(MP)on the SCJ.Theref... The Explosive Reactive Armors(ERA)are really efficient at reducing Shaped Charge Jet(SCJ)performance.The main destabilizing mechanism is the transverse movement of the front and rear moving plates(MP)on the SCJ.Therefore,a good understanding of the interaction SCJ/MP is essential for improving both weapon and armor systems.In a previous article,we have shown that interaction regimes are mainly influenced by the local collision geometry.Thus,in the collision point frame,the angle of collision be-tween the continuous SCJ and the MP is a key parameter.This flow angle is acute for the Backward Moving plate(BMP)moving against the SCJ and obtuse for the Forward Moving Plate(FMP)moving alongside it.In the former,the jet is simply deflected,which is the regime 1 of deflection.In the latter,the interaction turns on an alternative creation of fragment and ligament,which is the regime 2.Fragments are parts of the jet that are only slightly deflected while ligaments are the curved material bridges that connect two consecutive fragments.When stretching,the jet is systematically subject to instabilities that disturb its surface,creating necks along it.Their growth finally leads to the jet fragmentation.In this article,we focus on this jet distur-bance and its consequences on the SCJ/MP interaction.An experimental set-up was built to implement the interaction between a SCJ and a moving plate for different collision points,at different stand-off distances.The plate can interact with a smooth SCJ or a disturbed SCJ at a close and a far stand-off distance,respectively.One of the main results is the visualization of a regime change in SCJ/BMP interaction.A regime 1(deflection)interaction changes into a ligament regime interaction(similar to a FMP regime 2)when the collision point stand-off is increased.It is proposed that this change can be attributed as the increase of the amplitude of the jet surface disturbances.This phenomenon is well captured by the gSPH simula-tions.Finally,using both experimental and numerical approaches,we propose a new detailed analysis of the different phenomena occurring during the interaction between a disturbed-surface jet and a moving plate.Interaction regime changes are linked to jet local geometry changes.The interactions of a BMP with a smooth SCJ or with a disturbed surface SCJ are geometrically not the same and,thus,generate different local flows and interaction mechanisms.However,some other simulations have been carried out with constant velocity jet whose surface has been previously disturbed.These simulations underline the influence of both disturbance wavelength l and amplitude A on the interaction regimes.Surface disturbances of the SCJ,linked to its stretching,have a major influence on its interaction with a moving plate. 展开更多
关键词 Shaped charge jet disturbances Single moving plate necks and bumps and fragmentation gSPH simulations
在线阅读 下载PDF
头颈肿瘤患者治疗期间口腔咽喉黏液症状的风险因素及对策
3
作者 高菲 安然 +3 位作者 刘美子 吴子童 安学芳 陈文凤 《中国耳鼻咽喉头颈外科》 2025年第2期125-128,共4页
目的探讨头颈肿瘤患者治疗期间发生口腔咽喉黏液症状的风险因素。方法采用自制量表调查湖南省长沙市3所三级甲等医院就诊的头颈肿瘤患者,通过Logistic回归分析治疗期间口腔咽喉黏液症状发生的风险因素。结果最终纳入366例头颈肿瘤患者,... 目的探讨头颈肿瘤患者治疗期间发生口腔咽喉黏液症状的风险因素。方法采用自制量表调查湖南省长沙市3所三级甲等医院就诊的头颈肿瘤患者,通过Logistic回归分析治疗期间口腔咽喉黏液症状发生的风险因素。结果最终纳入366例头颈肿瘤患者,有312例患者出现口腔咽喉黏液症状。单因素分析结果显示,口腔咽喉黏液发生组与未发生组在性别、年龄、吸烟史、饮酒史、嚼槟榔史、远处转移、放疗次数、手术史和肿瘤类型方面,差异均有统计学意义(P<0.05);Logistic回归分析结果显示,放疗次数、肿瘤类型、年龄、嚼槟榔史是头颈肿瘤患者发生口腔咽喉黏液症状的风险因素(P<0.05)。结论放疗次数较多、口腔癌、年龄较大及有嚼槟榔史是头颈肿瘤患者治疗期间口腔咽喉黏液症状发生的高风险因素,临床人员需重点关注这类人群,并制定针对性的治疗措施。 展开更多
关键词 头颈部肿瘤(Head and Neck Neoplasms) 风险因素(Risk Factors) 核心症状(core symptom) 口腔咽喉黏液(oropharyngeal mucus)
暂未订购
The serum fascin-1 and tumor components containing this protein in patients with head and neck squamous cell carcinoma:A pilot study 被引量:1
4
作者 Gelena V.Kakurina Elena E.Sereda +4 位作者 Marina N.Stakheeva Liubov Tashireva Olga V.Cheremisina Irina V.Kondakova Evgeny L.Choinzonov 《Journal of Biomedical Research》 2025年第5期534-537,I0046,I0047,共6页
Dear Editor,Local recurrence and cervical lymph node metastases are major causes of mortality in patients with head and neck squamous cell carcinoma(HNSCC).To date,none of the proposed strategies for predicting outcom... Dear Editor,Local recurrence and cervical lymph node metastases are major causes of mortality in patients with head and neck squamous cell carcinoma(HNSCC).To date,none of the proposed strategies for predicting outcomes in this disease have proven fully effective,and a comprehensive physical examination remains the primary method for early detection and monitoring of HNSCC. 展开更多
关键词 serum fascin cervical lymph node metastases tumor components comprehensive physical examination head neck squamous cell carcinoma hnscc head neck squamous cell carcinoma pilot study local recurrence
暂未订购
CXCL16 promotes proliferation of head and neck squamous cell carcinoma by regulating GPX1-mediated antioxidant levels 被引量:1
5
作者 Ru HE Hongyi JIANG +10 位作者 Chengchi ZHANG Yuan CHEN Wenshun LIU Xinyue DENG Xiaozheng ZHU Yunye LIU Chuanming ZHENG Yining ZHANG Chengying SHAO Yanting DUAN Jiajie XU 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 2025年第1期92-106,共15页
Numerous studies have demonstrated that the high expression of CXC motif chemokine ligand 16(CXCL16)in cancer correlates with poor prognosis,as well as tumor cell proliferation,migration,and invasion.While CXCL16 can ... Numerous studies have demonstrated that the high expression of CXC motif chemokine ligand 16(CXCL16)in cancer correlates with poor prognosis,as well as tumor cell proliferation,migration,and invasion.While CXCL16 can serve as a tumor biomarker,the underlying mechanism in modulating head and neck squamous cell carcinoma(HNSCC)remains unclear.In this study,the aimed was to investigate the CXCL16 expression in HNSCC and to uncover the potential underlying mechanism.Hereby,we determined the high expression of CXCL16 in The Cancer Genome Atlas(TCGA)database,as well as in tissue samples from patients with HNSCC at our central hospital and from HNSCC cell lines.The results showed that CXCL16 knockdown inhibited the proliferation,migration,and invasion of HNSCC cells.Mechanistically,transcriptome sequencing revealed that CXCL16 may affect HNSCC cell growth by regulating the antioxidant pathway of glutathione peroxidase 1(GPX1).The reactive oxygen species(ROS)levels were elevated in small interfering CXCL16(si-CXCL16)cells,which may contribute to the inhibition of cell proliferation,migration,and invasion.Moreover,treatment of cells with the GPX1 inhibitor eldecalcitol(ED-71)revealed that HNSCC cell growth was significantly inhibited in the synergistic group of si-CXCL16 and GPX1 inhibitor compared to the si-CXCL16 group.In conclusion,CXCL16 contributed to the development of HNSCC cells by modulating the GPX1-mediated antioxidant pathway.Thus,targeting cellular CXCL16 expression seems to be a promising strategy for treating HNSCC. 展开更多
关键词 Antioxidant pathway CXC motif chemokine ligand 16(CXCL16) Glutathione peroxidase 1(GPX1) Head and neck squamous cell carcinoma(HNSCC)
原文传递
轻量级红外小目标检测方法
6
作者 崔玉杰 张上 +1 位作者 陈永麟 许欢 《红外技术》 北大核心 2025年第9期1142-1151,共10页
针对红外图像背景复杂、信噪比低、检测目标尺寸小和亮度弱等检测难点,提出一种基于YOLOv7s的轻量级红外小目标检测算法ISTD-YOLO(Infrared Small Target Detection-You Only Look Once)。首先,对YOLOv7s网络结构进行轻量化重构,分别将... 针对红外图像背景复杂、信噪比低、检测目标尺寸小和亮度弱等检测难点,提出一种基于YOLOv7s的轻量级红外小目标检测算法ISTD-YOLO(Infrared Small Target Detection-You Only Look Once)。首先,对YOLOv7s网络结构进行轻量化重构,分别将特征提取网络和特征融合网络重新调整,设计出一种三尺度轻量级网络架构,提高对小目标的检测性能;然后,采用VoV-GSCSP来取代模型颈部网络的ELAN-W模块,以降低计算成本和网络结构的复杂性,提高推理速度;其次,在颈部网络中引入一种无参注意力机制,增强局部上下文信息的关联性,更准确地提取目标的定位;最后,选用归一化高斯Wasserstein距离(Normalized Gaussian Wasserstein Distance,NWD)优化常用的IoU指标,来计算预测框与真实框之间的重叠关系,增强对小目标的定位和检测精度。实验结果表明,ISTD-YOLO可以有效改善检测效果,对比基线模型,在HIT-UAV与IDSAT数据集上的检测精度分别提高8.52%与4.77%;模型体积仅有21.8 MB,参数量减少69.8%,计算量下降17.6%;相较于当下主流算法,ISTD-YOLO在各方面指标均得到有效改善,能够实现对红外小目标的高质量检测。 展开更多
关键词 目标检测 红外小目标 模型轻量化 YOLOv7s 注意力机制 轻量级Neck网络 NWD
在线阅读 下载PDF
Mechanism of electroacupuncture treating detrusor-bladder neck dyssynergia after suprasacral spinal cord injury by proteomics
7
作者 Liya TANG Qirui QU +4 位作者 Jincan LIU Ming XU Lu ZHOU Qiong LIU Kun AI 《Digital Chinese Medicine》 2025年第2期267-278,I0044-I0052,共21页
Objectives To elucidate the potential mechanisms of electroacupuncture(EA)in restoring detrusor-bladder neck dyssynergia(DBND)following suprasacral spinal cord injury(SSCI).Methods A total of 52 specific pathogen-free... Objectives To elucidate the potential mechanisms of electroacupuncture(EA)in restoring detrusor-bladder neck dyssynergia(DBND)following suprasacral spinal cord injury(SSCI).Methods A total of 52 specific pathogen-free(SPF)grade famale Sprague-Dawley(SD)rats(10-12 weeks,250-280 g)were randomly assigned to either a sham group(n=12)or a spinal cord injury model group(n=40).In the model group,DBND was induced through Hassan Shaker spinal cord transection at T10 level,with 24 rats meeting inclusion criteria and subse-quently randomized into DBND group(n=12)and EA intervention group(DBND+EA group,n=12).After spinal shock recovery(day 19 after modeling),DBND+EA group received EA treatment at Ciliao(BL32),Zhongji(RN3),and Sanyinjiao(SP6)acupoints for 20 min per ses-sion at 10/50 Hz frequencies,once daily for 10 d.Sham and DBND groups received anesthe-sia only without EA intervention.On day 29 post-modeling,all rats underwent urodynamic assessments,followed by hematoxylin and eosin(HE)staining,tandem mass tag(TMT)pro-teomics,and Western blot(WB)analysis of detrusor and bladder neck tissues.Differentially expressed proteins(DEPs)were defined as proteins with P<0.05,unique peptides≥2,and fold change>1.2 or<0.83.Kyoto Encyclopedia of Genes and Genomes(KEGG)pathway anal-ysis was performed using KOBAS 3.0(P<0.01),and protein-protein interaction(PPI)net-works were analyzed using Search Tool for the Retrieval of Interacting Genes/Proteins(STRING)11.5 and Cytoscape 3.9.1.Results Compared with sham group,DBND group showed significantly elevated leak point pressure(LPP)and maximum cystometric capacity(MCC)(both P<0.01).EA treatment sig-nificantly reduced both LPP and MCC compared with DBND group(P<0.01 and P<0.05,re-spectively).HE staining revealed that EA reduced detrusor fibrosis and improved bladder neck inflammation.TMT proteomics identified 30 overlapping DEPs in detrusor and 59 over-lapping DEPs in bladder neck when comparing DBND+EA/DBND groups with sham group.In detrusor tissue,KEGG analysis revealed 10 significantly enriched pathways(P<0.01),in-cluding mitogen-activated protein kinase(MAPK)signaling pathway.PPI analysis showed 22 of 30 DEPs were interconnected.In bladder neck tissue,14 pathways were significantly en-riched(P<0.01),including relaxin signaling pathway,with 51 of 59 DEPs showing intercon-nections.Both TMT and WB validations demonstrated that compared with sham controls,DBND rats exhibited upregulated collagen type IV alpha 2 chain(Col4a2)and downregulated guanine nucleotide-binding protein G(z)subunit alpha(Gnaz)in detrusor tissue,while EA treatment normalized both proteins(both P<0.05).In bladder neck tissue,DBND rats showed decreased expression of smoothelin(Smtn)and calcium-activated potassium chan-nel subunit beta-1(Kcnmb1)compared with sham controls(both P<0.01),which were both upregulated following EA treatment(P<0.01 and P<0.05,respectively).Conclusion EA restores detrusor-bladder neck coordination in DBND through dual-target mechanisms.In detrusor tissue,EA modulates contraction via extracellular matrix remodel-ing,cyclic adenosine monophosphate(cAMP)signaling pathway regulation,and enhanced adenosine triphosphate(ATP)biosynthesis mediated by neurotransmitters.In bladder neck tissue,EA promotes relaxation by maintaining contractile phenotypes,reducing fibrosis,sup-pressing smooth muscle excitation,and regulating presynaptic neurotransmitter release.These findings provide mechanistic insights into EA's therapeutic role in managing DBND. 展开更多
关键词 ELECTROACUPUNCTURE Suprasacral spinal cord injury Detrusor-bladder neck dyssynergia DETRUSOR Bladder neck Proteomics analysis Differentially expressed proteins
暂未订购
A novel ejaculation-sparing surgical technique in the patient with primary bladder neck obstruction:Results of a single-arm cohort
8
作者 Marco Dellabella Luca Gasparri +5 位作者 Antonio Vinci Massimo Maurici Redi Claudini Alessandro Branchi Michele Pucci Edoardo Agostini 《Asian Journal of Urology》 2025年第2期278-280,共3页
Dear Editor,Primary bladder neck obstruction(PBNO)affects approximately 28%–54%of men[1].Its etiology remains unclear.Symptoms of PBNO present as voiding(e.g.,decreased force of stream,hesitancy,intermittent stream,a... Dear Editor,Primary bladder neck obstruction(PBNO)affects approximately 28%–54%of men[1].Its etiology remains unclear.Symptoms of PBNO present as voiding(e.g.,decreased force of stream,hesitancy,intermittent stream,and incomplete emptying),storage(e.g.,frequency,urgency,urge incontinence,and nocturia),or a combination of both[2].Untreated PBNO can lead to bladder dysfunction,bladder diverticula,hydronephrosis,and impaired renal function[3]. 展开更多
关键词 impaired renal function ejaculation sparing surgical technique storage symptoms bladder dysfunctionbladder diverticulahydronephrosisand voiding symptoms bladder neck obstruction pbno affects primary bladder neck obstruction
暂未订购
A Bibliometric Analysis of Research Trends in Neck Pain from 2000 to 2025
9
作者 Shiliang Xi Heqing Tang 《Journal of Clinical and Nursing Research》 2025年第5期387-396,共10页
Objective:This paper conducts a bibliometric analysis of the literature on neck pain research from 2000 to 2025,aiming to comprehensively and systematically understand the research landscape,hotspots,and frontier tren... Objective:This paper conducts a bibliometric analysis of the literature on neck pain research from 2000 to 2025,aiming to comprehensively and systematically understand the research landscape,hotspots,and frontier trends in this field,providing a reference for future research directions.Methods:Data were sourced from the Web of Science Core Collection,with the search term TI=“neck pain,”covering the time span from 2000 to 2025,resulting in 2746 articles.Software such as CiteSpace V6.3.R1 and VOSviewer 1.6.20 was used to analyze publication volume,countries,authors,institutions,keywords,and co-citation networks.Results:The number of publications in neck pain research has been increasing year by year,indicating a rising level of research activity.Authors like Falla,D,Jull,G,and institutions such as Univ Queensland and Univ Toronto have significant influence in this field.Co-occurrence analysis of keywords shows that“neck pain,”“low back pain,”and“disability index”are high-frequency keywords,reflecting research hotspots such as the characteristics and treatment of neck pain and its interrelation with pain in other regions.Timeline analysis and keyword emergence analysis reveal the frontiers and development trends in this field,such as the growing attention on emerging therapeutic methods like“exercise therapy”and“dry needling,”while keywords like“intensity,”“individuals,”and“quality”indicate an increasing emphasis on personalization,precision,and quality control in the treatment process.Conclusion:The field of neck pain research is continuously expanding and deepening.Future research should further investigate the pathogenesis of neck pain,its associations with other conditions,the refinement of assessment methods,and the development of innovative rehabilitation strategies.Emphasis should also be placed on interdisciplinary collaboration to provide more robust theoretical foundations and practical guidance for the clinical treatment and rehabilitation management of neck pain. 展开更多
关键词 Neck pain CITESPACE VOSviewer BIBLIOMETRICS Research Trends
暂未订购
Erratum to:Novel Approach to Osteoradionecrosis of the Temporal Bone:Vascularized Obliteration with Gracilis Muscular Free Flap
10
作者 Miguel Saro-Buendía Belén Andresen-Lorca +4 位作者 Alberto Pérez-García Nacho Llópez Carratala Joan Carreres Polo Miguel Armengot Carceller Jose María Perolada Valmaña 《Journal of Otology》 2025年第3期210-210,共1页
The online version of the original article can be found at:https://www.sciopen.com/article/10.26599/JOTO.2025.9540018 Erratum to Journal of Otology,2025,20(2):123-126.https://doi.org/10.26599/JOTO.2025.9540018 The sur... The online version of the original article can be found at:https://www.sciopen.com/article/10.26599/JOTO.2025.9540018 Erratum to Journal of Otology,2025,20(2):123-126.https://doi.org/10.26599/JOTO.2025.9540018 The surnames and given names of these authors are reversed:Saro-Buendía Miguel,Andresen-Lorca Belén,Pérez-García Alberto,Llópez Carratala Nacho,Carreres Polo Joan,Armengot Carceller Miguel,Perolada Valmaña Jose María.It should be Miguel Saro-Buendía,Belén Andresen-Lorca,Alberto Pérez-García,Nacho Llópez Carratala,Joan Carreres Polo,Miguel Armengot Carceller,Jose María Perolada Valmaña. 展开更多
关键词 OSTEORADIONECROSIS Osteoradionecrosis of the temporal bone Temporal bone resection Gracilis muscular free flap Head and neck radiotherapy Head and neck reconstructive surgery Vascularized flap obliteration
暂未订购
Novel Approach to Osteoradionecrosis of the Temporal Bone:Vascularized Obliteration with Gracilis Muscular Free Flap
11
作者 Saro-Buendía Miguel Andresen-Lorca Belén +4 位作者 Pérez-García Alberto Llópez Carratala Nacho Carreres Polo Joan Armengot Carceller Miguel Perolada Valmaña Jose María 《Journal of Otology》 2025年第2期123-126,共4页
Osteoradionecrosis of the temporal bone(ORN-TB)is usually controlled with conservative measures.However,a temporal bone resection may be required in unresponsive cases.The reconstruction of the resulting defects may b... Osteoradionecrosis of the temporal bone(ORN-TB)is usually controlled with conservative measures.However,a temporal bone resection may be required in unresponsive cases.The reconstruction of the resulting defects may be challenging because of the radiation damage to regional tissues.As a result,distant free flaps may be an optimal choice.For instance,the gracilis muscular free flap(GMFF)has consistent vascular anatomy and can be used to reconstruct small defects.We report three cases of uncontrolled ORN-TB requiring an extensive temporal bone resection followed by vascularized obliteration with a GMFF.The patients reported complete control of the main otologic symptoms(otorrhea,otalgia,and aural fullness)and optimal functional and aesthetic outcomes.Finally,the patients reported significant improvement in quality of life despite early postoperative complications.To our knowledge,the GMFF had not been used to obliterate temporal bone defects in patients with ORN-TB. 展开更多
关键词 OSTEORADIONECROSIS Osteoradionecrosis of the temporal bone Temporal bone resection Gracilis muscular free flap Head and neck radiotherapy Head and neck reconstructive surgery Vascularized flap obliteration
暂未订购
A Hypersensitive,Fast-response Biomimetic Pressure Sensor Inspired by the Superior Sensing Structures of the Dragonfly's Neck
12
作者 Yuechun Ding Rui Zhou +8 位作者 Changchao Zhang Hanliang Ding Bowei Li Bo Li Honglie Song Shichao Niu Junqiu Zhang Zhiwu Han Luquan Ren 《Journal of Bionic Engineering》 2025年第1期251-261,共11页
Flexible piezoresistive pressure sensors have attracted much attention for applications in health monitoring and human-machine interfaces due to their simple device structures and easy-to-read signals.For practical ap... Flexible piezoresistive pressure sensors have attracted much attention for applications in health monitoring and human-machine interfaces due to their simple device structures and easy-to-read signals.For practical applications,the deployment of flexible pressure sensors characterized by high sensitivity and fast response time is imperative for the rapid and accurate detection and monitoring of tiny signals.Such capabilities are essential for facilitating immediate feedback and informed decision-making across a spectrum of contexts.Drawing lessons from the hypersensitive and fast-responding pressure sensing structures in the dragonfly’s neck(for stable imaging during its highly maneuverable flight),a Biomimetic Piezoresistive Pressure Sensor(BPPS)with exquisite mechanically interlocking sensing microstructures is developed.Each interlocking perceptual structure pair consists of an ox-horn-shaped and a mushroom-shaped structural unit.Through the characteristic configuration of the perceptual structure pair,the BPPS realizes a fast gradient accumulation of the contact area,thus synergistically enhancing the sensitivity and fast response capability.Remarkably,the sensitivity of the BPPS reaches 0.35 kPa^(−1),which increased by 75%compared to the 0.2 kPa^(−1) of the pressure sensors without biomimetic structures.Moreover,the BPPS also achieves rapid response/recovery times(<90/15 ms).Our BPPS finds utility in tasks such as identifying objects of different weights,monitoring human respiratory status,and tracking motion,demonstrating its potential in wearable healthcare devices,assistive technology,and intelligent soft robotics.Moreover,it possesses the advantages of high sensitivity and fast response time in practical applications. 展开更多
关键词 Bionic Dragonfly neck HYPERSENSITIVITY Fast response Pressure sensor
在线阅读 下载PDF
Endovascular electrocoagulation for treating a blister-like microaneurysm with an extremely narrow neck:A case report
13
作者 Zhi-Yuan Zhang Xian-Yi Zhang +3 位作者 Guo-Zhang Lu Shi-Lei Wang Ji-Heng Hao Li-Yong Zhang 《World Journal of Clinical Cases》 2025年第32期110-115,共6页
BACKGROUND Intracranial blister-like microaneurysms are an extremely rare disease.Rupture of intracranial aneurysms can lead to subarachnoid hemorrhage(SAH).Patients with SAH may experience severe neurological symptom... BACKGROUND Intracranial blister-like microaneurysms are an extremely rare disease.Rupture of intracranial aneurysms can lead to subarachnoid hemorrhage(SAH).Patients with SAH may experience severe neurological symptoms,including severe headache,nausea,vomiting,transient or persistent loss of consciousness,limb weakness,and blurred vision.Ruptured aneurysms should be surgically treated as soon as possible.Intravascular electrocoagulation is becoming a promising treatment method for intracranial blister-like microaneurysms.The short-term follow-up results demonstrated that this method is safe and effective.This article presents a case of endovascular electrocoagulation for the treatment of a blisterlike microaneurysm.CASE SUMMARY This article reports the case of 71-year-old female patient with an intracranial aneurysm.The patient experienced a sudden headache with vomiting for 3 hours.Brain computed tomography(CT)scan showed a subarachnoid hemorrhage.She was diagnosed with rupture of an aneurysm and subarachnoid hemorrhage.The aneurysm was located in the choroidal segment of the right internal carotid artery.The size of the aneurysm was 2.00 mm×1.80 mm×1.97 mm,and the neck of the aneurysm was less than 0.5 mm wide.We successfully treated this aneurysm with endovascular electrocoagulation,and the patient was safely returned to the ward and discharged after subsequent supportive treatment.CT angiography reexamination 3 months after surgery revealed no contrast agent extravasation in the original lesion,with a good prognosis.CONCLUSION Endovascular electrocoagulation is an effective and safe method for the treatment of intracranial blister-like microaneurysms. 展开更多
关键词 MICROANEURYSM Blister-like Endovascular electrocoagulation Extremely narrow neck Case report
暂未订购
A Novel Passive Neck and Trunk Exoskeleton for Surgeons:Design and Validation
14
作者 Ce Zhang Juha M.Hijmans +3 位作者 Christian Greve Han Houdijk Gijsbertus Jacob Verkerke Charlotte Christina Roossien 《Journal of Bionic Engineering》 2025年第1期226-237,共12页
Musculoskeletal Symptoms(MSS)often arise from prolonged maintenance of bent postures in the neck and trunk during surgical procedures.To prevent MSS,a passive exoskeleton utilizing carbon fiber beams to offer support ... Musculoskeletal Symptoms(MSS)often arise from prolonged maintenance of bent postures in the neck and trunk during surgical procedures.To prevent MSS,a passive exoskeleton utilizing carbon fiber beams to offer support to the neck and trunk was proposed.The application of support force is intended to reduce muscle forces and joint compression forces.A nonlinear mathematical model for the neck and trunk support beam is presented to estimate the support force.A validation test is subsequently conducted to assess the accuracy of the mathematical model.Finally,a preliminary functional evaluation test is performed to evaluate movement capabilities and support provided by the exoskeleton.The mathematical model demonstrates an accuracy for beam support force within a range of 0.8–1.2 N Root Mean Square Error(RMSE).The exoskeleton was shown to allow sufficient Range of Motion(ROM)for neck and trunk during open surgery training.While the exoskeleton showed potential in reducing musculoskeletal load and task difficulty during simulated surgery tasks,the observed reduction in perceived task difficulty was deemed non-significant.This prompts the recommendation for further optimization in personalized adjustments of beams to facilitate improvements in task difficulty and enhance comfort. 展开更多
关键词 Neck exoskeleton Trunk exoskeleton Passive exoskeleton Surgeon support Nonlinear modeling
暂未订购
Influence of neck width on transient flow characteristics in saccular intracranial aneurysm models
15
作者 Feng Shen Siyuan Cheng +2 位作者 Xin Yang Xinran Lu Zhaomiao Liu 《Acta Mechanica Sinica》 2025年第4期53-69,共17页
Intracranial aneurysm(IA)is a prevalent cerebrovascular disease associated with high mortality and disability rates upon rupture.The hemodynamics of IA,which are significantly influenced by geometric parameters,direct... Intracranial aneurysm(IA)is a prevalent cerebrovascular disease associated with high mortality and disability rates upon rupture.The hemodynamics of IA,which are significantly influenced by geometric parameters,directly impact its rupture.This study focuses on investigating the transient flow characteristics in saccular IA models fabricated using a water droplet-based method,specifically examining the influence of neck widths.Particle image velocimetry technique and numerical simulation were employed to investigate the dynamic evolution of flow structures within three IA models.The results reveal that neck width(W)has a substantial effect on flow characteristics in the neck region,subsequently impacting the deep flow inside the sac.Three distinct patterns were observed during flow evolution inside the sac:for W=2 mm,two vortices occur and then disappear with relatively low average flow velocity;for W=4 mm,enhanced effects of a high-speed jet result in periodic pulsatile flow velocity distribution while maintaining stable vortex core position;for W=6 mm,significant changes in flow velocity occur due to size expansion and intensity increase of vortices.These findings demonstrate that neck widths play a complex role in influencing transient flow characteristics within IAs.Overall,this research contributes to further understanding transient flow behaviors in IAs. 展开更多
关键词 Intracranial aneurysm HEMODYNAMICS Flow pattern Neck width Particle image velocimetry
原文传递
Evaluation of clinical application of Korean medicine standard clinical pathway in a public hospital
16
作者 Seung-Jae Shin Jin-Won Kim Ji-Cheon Jeong 《World Journal of Clinical Cases》 2025年第17期16-26,共11页
BACKGROUND Clinical pathways(CPs)are structured guidelines introduced to improve healthcare quality and efficiency.In South Korea,CPs for Korean medicine have been developed since 2016 under the 3rd Comprehensive Plan... BACKGROUND Clinical pathways(CPs)are structured guidelines introduced to improve healthcare quality and efficiency.In South Korea,CPs for Korean medicine have been developed since 2016 under the 3rd Comprehensive Plan for Korean Medicine Promotion,with limited studies on their clinical application.Neck and shoulder pain are common conditions frequently treated at Korean medicine clinics,often by patients dissatisfied with conventional treatments.The demand for Korean medicine treatments for neck and shoulder pain is on the rise.AIM To evaluate the clinical applicability and effectiveness of Korean medicine CPs for neck pain and shoulder pain in public healthcare institutions in South Korea.METHODS We collected and analyzed data from patients aged 19 years and older who visited the outpatient clinic of the Department of Korean Medicine at the National Medical Center in Korea from March 1,2023 to August 31,2023.CP completion rates,along with patient satisfaction,clinical outcomes,and economic outcomes between the CP-implemented and non-CP groups were assessed.RESULTS The CP completion rates were 93.3%for neck pain and 96.8%for shoulder pain.Patient satisfaction scores showed an improvement of 17.7%for neck pain and 18.0%for shoulder pain in the CP-implemented group compared to the non-CP group.For neck pain,significant improvements were observed in the numerical rating scale(NRS)and the neck disability index,while for shoulder pain,only the University of California-Los Angeles shoulder rating scale showed notable progress,with no substantial change in NRS scores.CONCLUSION This study partially confirms the clinical applicability and effectiveness of the Korean medicine CPs for neck pain and shoulder pain.Further research is required to enhance and validate these findings. 展开更多
关键词 Clinical pathways Korean medicine Public healthcare Neck pain Shoulder pain
暂未订购
Trabecular titanium acetabular cup in patients with medial femoral neck fracture:Survivorship analysis and clinical and radiological outcomes
17
作者 Eugenio Jannelli Ester Boggio +3 位作者 Alberto Castelli Gianluigi Pasta Federico Alberto Grassi Mario Mosconi 《World Journal of Orthopedics》 2025年第3期41-48,共8页
BACKGROUND Clinical studies using Trabecular Titanium™acetabular cups have shown promising short and medium-term results.This material,due to its macro and micro surface roughness,provides a substrate for osseointegra... BACKGROUND Clinical studies using Trabecular Titanium™acetabular cups have shown promising short and medium-term results.This material,due to its macro and micro surface roughness,provides a substrate for osseointegration and enhances implant stability.However,there is a lack of evidence in the literature on the use of this material in patients with femoral neck fracture.AIM To evaluate the short-term clinical-functional and radiographic outcomes in patients with femoral neck fractures undergoing total hip arthroplasty(THA)with Trabecular Titanium™acetabular cup implants.METHODS The study included 104 patients with medial femoral neck fractures who underwent THA between January 2020 and December 2020 with the Delta TT acetabular cup(Lima Corporate,Villanova di San Daniele del Friuli,Italy).The mean age of the patients was 69.57±10.16 years(range:36-85 years).The followup period ranged from a minimum of 3 to a maximum of 4 years.Three questionnaires(Harris Hip Score,Oxford Hip Score,and EQ5D)were administered along with radiographic evaluations.Statistical methods included the Student's t-test and one-way analysis of variance for comparisons(with significance set at 0.05),and the Kaplan-Meier curve for prosthetic implant survival.RESULTS The mean follow-up was 41.5 months.The Harris Hip Score(HHS)showed a mean increase of 2.74 points(mean HHS 88.52 at 6 months postoperatively and mean HHS 91.26 at the last follow-up)with statistical significance.Similarly,the Oxford Hip Score demonstrated a statistically significant difference between follow-up groups.However,the EQ5D did not show statistically significant differences among the three groups(preoperative,6-month follow-up,and last follow-up).Revision surgery was required in 6 patients.According to Moore's criteria,96%of the acetabular components were radiographically stable and well-integrated at the last follow-up.The Kaplan-Meier curve showed a 96%survival rate.CONCLUSION The clinical and radiographic results obtained in the short to medium term confirm the excellent performance of the Delta TT acetabular cup in terms of osseointegration,providing an optimal solution both for young patients with high functional recovery demands and for fragile patients requiring optimal stability of the acetabular component to reduce the risk of implant failure. 展开更多
关键词 Trabecular titanium acetabular cups Hip arthroplasty Femur neck fracture Engh classification PROMs
暂未订购
Radiotherapy treatment time delay evidence,part I:Update on cervical,anal,prostate,and head and neck cancers
18
作者 Jose Antonio González Ferreira Castalia Fernandez +2 位作者 Daniela Gonsalves Imanol Paguey Felipe Couñago 《World Journal of Clinical Oncology》 2025年第10期171-179,共9页
Treatment delays during radiotherapy for head and neck cancer(HNC)are a well-established factor negatively affecting clinical outcomes,with similar trends observed in other cancers.In this first part of a two-part rev... Treatment delays during radiotherapy for head and neck cancer(HNC)are a well-established factor negatively affecting clinical outcomes,with similar trends observed in other cancers.In this first part of a two-part review,we assessed the impact of overall treatment time(OTT)prolongation on locoregional control(LRC)and survival(SV)in cervical cancer(CC),prostate cancer(PC),and anal cancer(AC),while updating evidence for HNC.A comprehensive literature search was performed in evidence-based databases,including MEDLINE,identifying studies evaluating the relationship between OTT prolongation and outcomes.Particular attention was paid to the strength of evidence,distinguishing univariate analysis from multivariate analysis(MV-An).For CC,37 articles were identified,with 88.8%reporting a detrimental impact on LRC and/or SV,mostly supported by MV-An.In AC,15 studies were found,with 33.3%showing negative impacts,although with weaker evidence.For PC,12 articles were reviewed,with 66.6%demonstrating detrimental effects mainly on LRC or biochemical control,and occasional associations with cancer-specific SV.Recent studies in HNC reinforced prior findings.When available,radiobiological parameters and practical recommendations are provided.In conclusion,strong evidence confirms that prolonged OTT worsens outcomes in HNC and CC,with less consistent but relevant effects in PC and AC. 展开更多
关键词 RADIOTHERAPY Overall treatment time DELAYS Locoregional control Survival CERVIX ANAL PROSTATE Head and neck cancer
暂未订购
Impact of neck massage on breast milk production in postnatal mothers-An outcome-based intervention
19
作者 Sudeshna PRADHAN Madhusmita NAYAK +1 位作者 Sephali MOHARANA Madhusmita NAYAK 《Journal of Integrative Nursing》 2025年第3期121-129,共9页
Objective:The aim of the study is to evaluate the effect of neck massage on increased breast milk secretion among postnatal mothers.Materials and Methods:The current study adopted a quasi-experimental design conducted... Objective:The aim of the study is to evaluate the effect of neck massage on increased breast milk secretion among postnatal mothers.Materials and Methods:The current study adopted a quasi-experimental design conducted among 60 primi postnatal mothers(30 in each group).Study was conducted at the Postnatal ward of IMS and SUM Hospital,Bhubaneswar,Odisha.Tools used were structured sociodemographic pro forma,structured breast milk adequacy questionnaire,and structured rating scale to assess the adequacy of breast milk production.The duration of the study is 1 year.All the postnatal mothers who were primigravida and undergone cesarean section were chosen as the sample through a convenience sampling technique.Then,the samples were assigned to the intervention group(receiving neck massage)and control group(receiving standard postnatal care).The data were collected and analyzed using both descriptive and inferential statistics by SPSS version 20.Results:The study resulted a significant difference between the pretest and posttest score of breast milk production after neck massage(P=0.000).The mean score of the posttest(2.90±0.36)is more than the mean score of the pretest(2.89±0.36)of the baby’s weight(P<0.001).Further,the number of urination and stool passed in 24 h was more in the intervention group than the control group(P<0.001).The Chi-square analysis showed statistical significance between breast milk production after neck massage with religion of the postnatal mothers(P<0.05).Conclusion:The neck massage is found effective in improving the breast milk production among primi c-section mothers with improve newborn parameters. 展开更多
关键词 Breast milk production BREASTFEEDING cesarean women neck massage postnatal mother
暂未订购
Merkel cell carcinoma presenting as a nasal dorsum mass:A case report and literature review
20
作者 Abdullah Ibrahim Ali Abuharb Abdullah Fahad Alzamil +5 位作者 Khalid Saad Alqarni Ali M Alsudays Saeed M Alqahtani Rawan Mosleh Alahmadi Alyaa Shojaa Al Mutairy Fareed Ramzi Alghamdi 《World Journal of Clinical Cases》 2025年第24期28-35,共8页
BACKGROUND Merkel cell carcinoma(MCC)is a rare and aggressive skin cancer with high incidence in older and immunocompromised patients.Its occurrence in the nasal dorsum is extremely rare and poses significant diagnost... BACKGROUND Merkel cell carcinoma(MCC)is a rare and aggressive skin cancer with high incidence in older and immunocompromised patients.Its occurrence in the nasal dorsum is extremely rare and poses significant diagnostic and therapeutic challenges.CASE SUMMARY We report the case of a 65-year-old woman with diabetes mellitus and hypertension who presented with a dorsal nasal mass.The initial differential diagnosis favored hemangioma-based clinical examination on imaging.Histopathological examination after excision revealed MCC,necessitating a complex management strategy.A 3 cm×2 cm nasal mass,initially suspected to be a hemangioma,was excised but revealed MCC with positive margins.Positron emission tomography–computed tomography confirmed metastatic cervical lymphadenopathy.The patient underwent bilateral neck dissection,revealing metastases in seven nodes.Residual activity was treated with radiation therapy,leading to a favorable response after 6 months.CONCLUSION This case highlights the importance of considering MCC in the differential diagnosis of nasal masses,and integrated management. 展开更多
关键词 Merkel cell carcinoma Nasal mass Cancer Head and neck OTORHINOLARYNGOLOGY Case report
暂未订购
上一页 1 2 50 下一页 到第
使用帮助 返回顶部