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Fingered Intrusion of Shallow Saucer-shaped Igneous Sills: Insights from the Jiaojiang Sag, East China Sea 被引量:8
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作者 GUO Rui ZHANG Gongcheng +4 位作者 ZHANG Jinwei ZHAO Xingbin LIU Junbang YUAN Dawei SONG Shuang 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2013年第5期1306-1318,共13页
An extensive suite of igneous sills was intruded into the Tertiary sedimentary section of the Jiaojiang sag, East China Sea. This suite has been well imaged offshore through 2D and 3D seismic surveys, showing a close ... An extensive suite of igneous sills was intruded into the Tertiary sedimentary section of the Jiaojiang sag, East China Sea. This suite has been well imaged offshore through 2D and 3D seismic surveys, showing a close relationship with CO2 content in nearby gas discoveries. A new observational model, which incorporates simple upward propagation, simple horizontal propagation, and transgressive propagation, was proposed to interpret these sill intrusions. In this model, the source magma of the saucer-shaped sills was injected from their lowest points near the center. The transgressive propagation can be interpreted as a combination of the vertical and horizontal propagation. Most shallow sub-volcanic intrusions in the Jiaojiang sag exhibit fingered characteristics, both vertically and horizontally. The vertical fingered propagation produced saucer-shaped sills arranged in the flower style. Along the brims of lower sills could usually be found the upper sills, which are interpreted to have formed simultaneously with or later than the lower feeder sills. In the second type, the chilled paths of the older sills were reutilized by subsequent intrusions. The horizontal fingered propagation formed sheet intrusions that exhibit groove, lobate, tubular, and crevasse splay- like geometry in plan view. In 3D view, the sheet intrusions have still preserved the lower center and higher rim that similar with the sub-rounded saucer-shaped sills. Although fracture propagation may be important, flow inflation was the key mechanism of magma intrusion. Further consideration of the mechanisms underlying sill formation may help explain the fingered characteristics of sill propagation. 展开更多
关键词 Saucer-shaped sill fingered intrusion feeder relationship lobate sill flow inflation Jiaojiang sag
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Imaginary displacement method for analysis of multi-fingered robot hands grasping stability
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作者 张永德 刘廷荣 李华敏 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 1999年第4期24-29,共6页
0 INTRODUCTION  (1)OverviewofpresentresearchesongraspingstabilityAmultifingeredhandhasmultiplefingersandmul... 0 INTRODUCTION  (1)OverviewofpresentresearchesongraspingstabilityAmultifingeredhandhasmultiplefingersandmultiplecontactpoin... 展开更多
关键词 ROBOT multi fingered HAND GRASP STABILITY imaginary DISPLACEMENT method
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OPTIMUM GRASPING PLANNING FOR MULTIFINGERED DEXTROUS HANDS BASED ON THE ASYMPTOTICAL STABILITY
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作者 Yang Yang Lu Zhen Zhang Qixian(Robotics Research Institute, Beijing University of Aeronautics and Astronautics, Beijing, China, 100083) 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 1996年第2期147-155,共9页
The grasp stiffness and joint stiffness for the grasping system of amulti-fingered dextrous hand are characterized, and the expressions are developed forthe potential energy, kinetic energy and the dissipation functio... The grasp stiffness and joint stiffness for the grasping system of amulti-fingered dextrous hand are characterized, and the expressions are developed forthe potential energy, kinetic energy and the dissipation function in a grasp. Using aLagrangian formula, the small displacement disturbance equation for a multi-fingeredgrasping system is introduced and the equation is solved by modal analysis. Based onthis work, an optimum grasping planning is formulated as a non-linear programmingproblem so that the grasping system could have ideal asmptotical stability. An examplefor the BH-2 anthropoid hand grasping a cylinder-object demonstrates theapplicability and effectiveness of the method. 展开更多
关键词 ROBOTS FINGERS STABILITY optimization
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Quantitative trait loci identification reveals zinc finger protein CONSTANS-LIKE 4 as the key candidate gene of stigma color in watermelon(Citrullus lanatus)
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作者 Shuang Pei Zexu Wu +4 位作者 Ziqiao Ji Zheng Liu Zicheng Zhu Feishi Luan Shi Liu 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第7期2292-2305,共14页
Stigma color is a critical agronomic trait in watermelon that plays an important role in pollination.However,there are few reports on the regulation of stigma color in watermelon.In this study,a genetic analysis of th... Stigma color is a critical agronomic trait in watermelon that plays an important role in pollination.However,there are few reports on the regulation of stigma color in watermelon.In this study,a genetic analysis of the F2 population derived from ZXG1553(P1,with orange stigma)and W1-17(P2,with yellow stigma)indicated that stigma color is a quantitative trait and the orange stigma is recessive compared with the yellow stigma.Bulk segregant analysis sequencing(BSA-seq)revealed a 3.75 Mb segment on chromosome 6 that is related to stigma color.Also,a major stable effective QTL Clqsc6.1(QTL stigma color)was detected in two years between cleaved amplified polymorphic sequencing(CAPS)markers Chr06_8338913 and Chr06_9344593 spanning a~1.01 Mb interval that harbors 51 annotated genes.Cla97C06G117020(annotated as zinc finger protein CONSTANS-LIKE 4)was identified as the best candidate gene for the stigma color trait through RNA-seq,quantitative real-time PCR(qRT-PCR),and gene structure alignment analysis among the natural watermelon panel.The expression level of Cla97C06G117020 in the orange stigma accession was lower than in the yellow stigma accessions with a significant difference.A nonsynonymous SNP site of the Cla97C06G117020 coding region that causes amino acid variation was related to the stigma color variation among nine watermelon accessions according to their re-sequencing data.Stigma color formation is often related to carotenoids,and we also found that the expression trend of ClCHYB(annotated asβ-carotene hydroxylase)in the carotenoid metabolic pathway was consistent with Cla97C06G117020,and it was expressed in low amounts in the orange stigma accession.These data indicated that Cla97C06G117020 and ClCHYB may interact to form the stigma color.This study provides a theoretical basis for gene fine mapping and mechanisms for the regulation of stigma color in watermelon. 展开更多
关键词 WATERMELON stigma color gene mapping zinc finger protein CONSTANS-LIKE 4
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Therapeutic targeting of cellular prion protein: toward the development of dual mechanism anti-prion compounds
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作者 Antonio Masone Chiara Zucchelli +2 位作者 Enrico Caruso Giovanna Musco Roberto Chiesa 《Neural Regeneration Research》 SCIE CAS 2025年第4期1009-1014,共6页
PrPSc,a misfolded,aggregation-prone isoform of the cellular prion protein(PrPC),is the infectious prion agent responsible for fatal neurodegenerative diseases of humans and other mammals.PrPSccan adopt different patho... PrPSc,a misfolded,aggregation-prone isoform of the cellular prion protein(PrPC),is the infectious prion agent responsible for fatal neurodegenerative diseases of humans and other mammals.PrPSccan adopt different pathogenic conformations(prion strains),which can be resistant to potential drugs,or acquire drug resistance,posing challenges for the development of effective therapies.Since PrPCis the obligate precursor of any prion strain and serves as the mediator of prion neurotoxicity,it represents an attractive therapeutic target fo r prion diseases.In this minireview,we briefly outline the approaches to target PrPCand discuss our recent identification of Zn(Ⅱ)-Bn PyP,a PrPC-targeting porphyrin with an unprecedented bimodal mechanism of action.We argue that in-depth understanding of the molecular mechanism by which Zn(Ⅱ)-Bn PyP targets PrPCmay lead toward the development of a new class of dual mechanism anti-prion compounds. 展开更多
关键词 anti-prion drug anti-PrPC antibody antisense oligonucleotide NEURODEGENERATION pharmacological chaperone porphyrin prion disease PrPC degrader PrPC shedding zinc finger repressor
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ZNF554 Inhibits Endometrial Cancer Progression via Regulating RBM5 and Inactivating WNT/β-Catenin Signaling Pathway
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作者 Cheng-cheng ZHU Heng-liang SUN +3 位作者 Teng-fei LONG Yuan-yuan LYU Jiang-li LIU Guan-tai NI 《Current Medical Science》 SCIE CAS 2024年第2期406-418,共13页
Objective:Uterine corpus endometrial carcinoma(UCEC),a kind of gynecologic malignancy,poses a significant risk to women’s health.The precise mechanism underlying the development of UCEC remains elusive.Zinc finger pr... Objective:Uterine corpus endometrial carcinoma(UCEC),a kind of gynecologic malignancy,poses a significant risk to women’s health.The precise mechanism underlying the development of UCEC remains elusive.Zinc finger protein 554(ZNF554),a member of the Krüppel-associated box domain zinc finger protein superfamily,was reported to be dysregulated in various illnesses,including malignant tumors.This study aimed to examine the involvement of ZNF554 in the development of UCEC.Methods:The expression of ZNF554 in UCEC tissues and cell lines were examined by qRT-PCR and Western blot assay.Cells with stably overexpressed or knocked-down ZNF554 were established through lentivirus infection.CCK-8,wound healing,and Transwell invasion assays were employed to assess cell proliferation,migration,and invasion.Propidium iodide(PI)staining combined with fluorescence-activated cell sorting(FACS)flow cytometer was utilized to detect cell cycle distribution.qRT-PCR and Western blotting were conducted to examine relative mRNA and protein levels.Chromatin immunoprecipitation assay and luciferase reporter assay were used to explore the regulatory role of ZNF554 in RNA binding motif 5(RBM5).Results:The expression of ZNF554 was found to be reduced in both UCEC samples and cell lines.Decreased expression of ZNF554 was associated with higher tumor stage,decreased overall survival,and reduced disease-free survival in UCEC.ZNF554 overexpression suppressed cell proliferation,migration,and invasion,while also inducing cell cycle arrest.In contrast,a decrease in ZNF554 expression resulted in the opposite effect.Mechanistically,ZNF554 transcriptionally regulated RBM5,leading to the deactivation of the Wingless(WNT)/β-catenin signaling pathway.Moreover,the findings from rescue studies demonstrated that the inhibition of RBM5 negated the impact of ZNF554 overexpression onβ-catenin and p-glycogen synthase kinase-3β(p-GSK-3β).Similarly,the deliberate activation of RBM5 reduced the increase inβ-catenin and p-GSK-3βcaused by the suppression of ZNF554.In vitro experiments showed that ZNF554 overexpression-induced decreases in cell proliferation and migration were counteracted by RBM5 knockdown.Additionally,when RBM5 was overexpressed,it hindered the improvements in cell proliferation and migration caused by reducing the ZNF554 levels.Conclusion:ZNF554 functions as a tumor suppressor in UCEC.Furthermore,ZNF554 regulates UCEC progression through the RBM5/WNT/β-catenin signaling pathway.ZNF554 shows a promise as both a prognostic biomarker and a therapeutic target for UCEC. 展开更多
关键词 zinc finger protein 554 endometrial carcinoma RNA binding motif 5 Wingless/β-catenin signaling pathway
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Upregulated lncRNA PRNT promotes progression and oxaliplatin resistance of colorectal cancer cells by regulating HIPK2 transcription
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作者 Sai-Nan Li Shan Yang +5 位作者 Hao-Qi Wang Tian-Li Hui Meng Cheng Xi Zhang Bao-Kun Li Gui-Ying Wang 《World Journal of Gastrointestinal Oncology》 SCIE 2024年第4期1564-1577,共14页
BACKGROUND Colorectal cancer(CRC)is the third most common cancer and a significant cause of cancer-related mortality globally.Resistance to chemotherapy,especially during CRC treatment,leads to reduced effectiveness o... BACKGROUND Colorectal cancer(CRC)is the third most common cancer and a significant cause of cancer-related mortality globally.Resistance to chemotherapy,especially during CRC treatment,leads to reduced effectiveness of drugs and poor patient outcomes.Long noncoding RNAs(lncRNAs)have been implicated in various pathophysiological processes of tumor cells,including chemotherapy resistance,yet the roles of many lncRNAs in CRC remain unclear.AIM To identify and analyze the lncRNAs involved in oxaliplatin resistance in CRC and to understand the underlying molecular mechanisms influencing this resistance.METHODS Gene Expression Omnibus datasets GSE42387 and GSE30011 were reanalyzed to identify lncRNAs and mRNAs associated with oxaliplatin resistance.Various bioinformatics tools were employed to elucidate molecular mechanisms.The expression levels of lncRNAs and mRNAs were assessed via quantitative reverse transcription-polymerase chain reaction.Functional assays,including MTT,wound healing,and Transwell,were conducted to investigate the functional implications of lncRNA alterations.Interactions between lncRNAs and trans-cription factors were examined using RIP and luciferase reporter assays,while Western blotting was used to confirm downstream pathways.Additionally,a xenograft mouse model was utilized to study the in vivo effects of lncRNAs on chemotherapy resistance.RESULTS LncRNA prion protein testis specific(PRNT)was found to be upregulated in oxaliplatin-resistant CRC cell lines and negatively correlated with homeodomain interacting protein kinase 2(HIPK2)expression.PRNT was demonstrated to sponge transcription factor zinc finger protein 184(ZNF184),which in turn could regulate HIPK2 expression.Altered expression of PRNT influenced CRC cell sensitivity to oxaliplatin,with overexpression leading to decreased sensitivity and decreased expression reducing resistance.Both RIP and luciferase reporter assays indicated that ZNF184 and HIPK2 are targets of PRNT.The PRNT/ZNF184/HIPK2 axis was implicated in promoting CRC progression and oxaliplatin resistance both in vitro and in vivo.CONCLUSION The study concludes that PRNT is upregulated in oxaliplatin-resistant CRC cells and modulates the expression of HIPK2 by sponging ZNF184.This regulatory mechanism enhances CRC progression and resistance to oxaliplatin,positioning PRNT as a promising therapeutic target for CRC patients undergoing oxaliplatin-based chemotherapy. 展开更多
关键词 Colorectal cancer Oxaliplatin resistance Prion protein testis specific Zinc finger protein 184 Homeodomain interacting protein kinase 2
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Linearizing the soft finger contact constraint with application to dynamic force distribution in multifingered grasping
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作者 ZHENG Yu QIAN Wenhan 《Science China(Technological Sciences)》 SCIE EI CAS 2005年第2期121-130,共10页
Currently, most efficient algorithms for force-closure analysis and dynamic force distribution utilize linear programming, but friction models are nonlinear. Substituting polyhedral cones for circular cones of Coulomb... Currently, most efficient algorithms for force-closure analysis and dynamic force distribution utilize linear programming, but friction models are nonlinear. Substituting polyhedral cones for circular cones of Coulomb friction realizes the linearization of the frictional point contact constraint. So far, however, there is no approach to soft finger contact. This paper presents such an approach. Then the foregoing algorithms can be extended to grasping with soft finger contact. Herein an optimal force distribution algorithm for soft multifingered grasps is developed with an illustrative example. 展开更多
关键词 multifingered grasping SOFT FINGER contact linearization force-closure dynamic force DISTRIBUTION (DFD).
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Grasping Force Optimization Algorithm of Soft Multi-fingered Hand Based on Safety Margin Detection
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作者 WANG Xuelin XIAO Yongfei +1 位作者 ZHAO Yongguo FAN Xinjian 《机器人》 EI CSCD 北大核心 2017年第6期844-852,共9页
The classical gradient flow optimization algorithm requires a valid initial point before starting the recursive algorithm,and the existing methods can’t guarantee that the initial values fully satisfy the friction co... The classical gradient flow optimization algorithm requires a valid initial point before starting the recursive algorithm,and the existing methods can’t guarantee that the initial values fully satisfy the friction cone constraints of contact point in the optimization process of gradient flow algorithm.In order to improve safety margin and prevent the finger from slipping at contact point,we present an iterative method of safe initial values with safety margin detection and develop a gradient flow optimization algorithm based on the safe initial values.Firstly,the safety margin is defined which more intuitively reflects the margin of the grasping forces at contact point.The resulting safe initial values can be achieved by the detection of desired safety margin at each iteration.Secondly,the safe initial values are usually not optimal,even with the valid initial values,and it can’t always ensure that the finger contact force always satisfies the friction cone constraints during the optimization.It is an effective way to eliminate the unreliable initial values in the optimization and obtain a safer initial values by increasing the safety margin.By transforming the safe initial values into an initial point of the gradient flow algorithm,the final optimized values of grasping forces can be generated efficiently by gradient flow iteration.Grasp examples of the soft multi-fingered hand indicate the effectiveness of the general solution of the force optimization algorithm based on safety margin detection.The method eliminates the shortcomings of the gradient flow optimization process caused by the initial value problem and provides a more accurate and reliable force optimization result for multi-fingered dexterous manipulation. 展开更多
关键词 force optimization grasping force multi-fingered hand soft finger gradient flow friction cone
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Line Patterns Segmentation in Blurred Images Using Contrast Enhancement and Local Entropy Thresholding
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作者 Marios Vlachos Evangelos Dermatas 《Journal of Computer and Communications》 2024年第2期116-141,共26页
Finger vein extraction and recognition hold significance in various applications due to the unique and reliable nature of finger vein patterns. While recently finger vein recognition has gained popularity, there are s... Finger vein extraction and recognition hold significance in various applications due to the unique and reliable nature of finger vein patterns. While recently finger vein recognition has gained popularity, there are still challenges associated with extracting and processing finger vein patterns related to image quality, positioning and alignment, skin conditions, security concerns and processing techniques applied. In this paper, a method for robust segmentation of line patterns in strongly blurred images is presented and evaluated in vessel network extraction from infrared images of human fingers. In a four-step process: local normalization of brightness, image enhancement, segmentation and cleaning were involved. A novel image enhancement method was used to re-establish the line patterns from the brightness sum of the independent close-form solutions of the adopted optimization criterion derived in small windows. In the proposed method, the computational resources were reduced significantly compared to the solution derived when the whole image was processed. In the enhanced image, where the concave structures have been sufficiently emphasized, accurate detection of line patterns was obtained by local entropy thresholding. Typical segmentation errors appearing in the binary image were removed using morphological dilation with a line structuring element and morphological filtering with a majority filter to eliminate isolated blobs. The proposed method performs accurate detection of the vessel network in human finger infrared images, as the experimental results show, applied both in real and artificial images and can readily be applied in many image enhancement and segmentation applications. 展开更多
关键词 Finger Vein Vessel Enhancement Vessel Network Extraction Non-Uniform Images BINARIZATION Morphological Post-Processing
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Analysis of the Effect of Intensive Nursing Care on Improving Sleep Quality During the Perioperative Period of Severed Finger Reimplantation
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作者 Yan Zhu Chao Huang 《Journal of Clinical and Nursing Research》 2024年第6期322-327,共6页
Objective:To investigate the clinical effect of perioperative intensive nursing on patients who underwent severed finger reimplantation and its influence on sleep quality.Methods:62 patients who underwent severed fing... Objective:To investigate the clinical effect of perioperative intensive nursing on patients who underwent severed finger reimplantation and its influence on sleep quality.Methods:62 patients who underwent severed finger reimplantation between January 2023 and December 2023 were included.They were divided into two groups:the observation group(n=31)and the control group(n=31).The control group received basic nursing interventions,while the observation group received intensive nursing care.The comparison parameters included visual analog pain score(VAS),incidence of vascular crises,length of hospitalization,Pittsburgh Sleep Quality Index(PSQI),Hamilton Depression Score(HAM-D),Hamilton Anxiety Score(HAM-A),and patient satisfaction.Results:Postoperative VAS score,incidence of vascular crisis,hospitalization time,PSQI score,and HAM-A and HAM-D scores of the observation group were lower than those of the control group(P<0.05).Meanwhile,the patient satisfaction of the observation group was higher than that of the control group(P<0.05).Conclusion:Perioperative intensive nursing care for patients undergoing severed finger reimplantation demonstrates significant benefits.It reduces postoperative pain,lowers the incidence of vascular crises,shortens hospitalization durations,enhances sleep quality,alleviates negative emotions,and improves nursing satisfaction.These findings underscore the importance and applicability of such care practices. 展开更多
关键词 Intensive nursing care Replantation of severed fingers Perioperative period Sleep quality
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Intron-retained alternatively spliced VIN3-LIKE 2 gene from Chimonanthus praecox promotes flowering in transgenic Arabidopsis 被引量:1
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作者 Tian Xu Ning Liu +4 位作者 Chunyu Wu Yi Zhang Mingkang Tian Shunzhao Sui Zhineng Li 《Horticultural Plant Journal》 SCIE CAS CSCD 2023年第4期789-800,共12页
Vernalization is a process of acquiring or accelerating the flowering ability by prolonged cold exposure.VERNALIZATION INSENSITIVE3(VIN3)is induced by chilling and is extremely important for the vernalization response... Vernalization is a process of acquiring or accelerating the flowering ability by prolonged cold exposure.VERNALIZATION INSENSITIVE3(VIN3)is induced by chilling and is extremely important for the vernalization response in Arabidopsis thaliana.However,the issue of the induction of the VIN3-LIKE genes in wintersweet(Chimonanthus praecox)has been largely neglected.In the present study,we explored the molecular regulation of the PHD type finger protein-encoding gene CpVIL2 in relation to the growth and development of wintersweet in Arabidopsis.In wintersweet,quantitative real-time PCR(qRT-PCR)analysis showed that the relative expression of CpVIL2-As2i(intron-retained alternatively spliced in the second intron)was extremely higher in the pistils than in the other tissues.And the relative CpVIL2-As2i expression in flower buds(FBs)treated at 8°C was higher than that of FBs in December,2016 under natural conditions,which was not detected in non-flowering FBs at 16°C.In Arabidopsis,the expression patterns of the CpVIL2-As2i gene were detected at first in CpVIL2-As2i pro::GUS(β-glucuronidase)lines,with predominantly higher expression in flowers and inflorescence.Meanwhile,the hormone-induced expression profiles of the CpVIL2-As2i promoter were confirmed using exogenous induction by abscisic acid(ABA)and indole acetic acid(IAA)phytohormones,where the GUS enzyme activity obviously decreased compared with that of control.In comparison with Arabidopsis/Col-0,early flowering was detected in ectopic 35S::CpVIL2-As2i lines.Overall,these results demonstrated the function of the CpVIL2-As2i gene,at the same time,provided us with new insights into the molecular mechanisms of early flowering and complex regulatory networks of vernalization in wintersweet. 展开更多
关键词 Chimonanthus praecox PHD finger protein VIL2 Ectopic expression Flowering time VERNALIZATION
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介导植物干旱应答的RING finger类型泛素连接酶的研究进展
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作者 孙雯雯 陈新 +1 位作者 马艳春 赵庆臻 《中文科技期刊数据库(全文版)自然科学》 2023年第4期88-94,共7页
干旱是影响植物生长和农作物产量的重要环境因素。泛素连接酶E3是蛋白质泛素化修饰的关键酶之一,对于植物生长发育和干旱胁迫应答具有重要的调控作用。RING finger类型泛素连接酶是其成员最多的一种类型。本文主要概述了植物对干旱胁迫... 干旱是影响植物生长和农作物产量的重要环境因素。泛素连接酶E3是蛋白质泛素化修饰的关键酶之一,对于植物生长发育和干旱胁迫应答具有重要的调控作用。RING finger类型泛素连接酶是其成员最多的一种类型。本文主要概述了植物对干旱胁迫的响应机制及植物中的RING finger类型E3,并详细综述了RING finger类型E3介导植物干旱胁迫应答的研究进展,可以供大家参考。 展开更多
关键词 RING FINGER 泛素连接酶 干旱 脱落酸
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Investigation of Experimental Devices for Finger Active and Passive Tactile Friction Analysis
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作者 Xue Zhou Marc A.Masen +3 位作者 Jiliang Mo Xinyu Shi Yaosheng He Zhongmin Jin 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2023年第2期129-139,共11页
Complicated tribological behavior occurs when human fingers touch and perceive the surfaces of objects.In this process,people use their exploration style with different conditions,such as contact load,sliding speed,sl... Complicated tribological behavior occurs when human fingers touch and perceive the surfaces of objects.In this process,people use their exploration style with different conditions,such as contact load,sliding speed,sliding direction,and angle of orientation between fingers and object surface consciously or unconsciously.This work addressed interlaboratory experimental devices for finger active and passive tactile friction analysis,showing two types of finger movement.In active sliding experiment,the participant slid their finger freely against the object surface,requiring the subject to control the motion conditions themselves.For passive sliding experiments,these motion conditions were adjusted by the device.Several analysis parameters,such as contact force,vibration acceleration signals,vibration magnitude,and fingerprint deformation were recorded simultaneously.Noticeable friction differences were observed when comparing active sliding and passive sliding.For passive sliding,stick-slip behavior occurred when sliding in the distal direction,evidenced by observing the friction force and the related deformation of the fingerprint ridges.The employed devices showed good repeatability and high reliability,which enriched the design of the experimental platform and provided guidance to the standardization research in the field of tactile friction. 展开更多
关键词 Finger friction Experimental device Active sliding Passive sliding Rotating
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Sensitivity and specificity of hearing tests for screening hearing loss in older adults
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作者 Hsin-Chen Ting Yung-Yao Huang 《Journal of Otology》 CSCD 2023年第1期1-6,共6页
Objectives: The study aimed to determine the most appropriate hearing screening test to identify disabling hearing loss for adults aged 65 years or older.Methods: This study included 577 older adults. Four hearing scr... Objectives: The study aimed to determine the most appropriate hearing screening test to identify disabling hearing loss for adults aged 65 years or older.Methods: This study included 577 older adults. Four hearing screening tests were considered in the study, including the Hearing Handicap Inventory for Elderly Screening(HHIE-s), three single question tests, the whisper test, and the finger rub test. The sensitivity and specificity of these tests referenced to the hearing threshold of disabling hearing loss were estimated.Results: Among all tests, only the single self-perception question(0.7064 for sensitivity;0.7225 for specificity) and whisper test(0.7833 for sensitivity;0.7708 for specificity) could obtain both sensitivity and specificity higher than 70% for adults aged ≥65 years.Conclusion: Overall, we suggest using the whisper test to identify disabling hearing loss(>40 dB HL at the better ear) for adults aged 65 years or older. However, if the conditions do not permit, the single selfperception question is also acceptable. Moreover, HHIE-s might not be a good test to detect disabling hearing loss for adults aged 80 years or older. 展开更多
关键词 Sensitivity and specificity Hearing screening QUESTIONNAIRE Whisper test Finger rub test
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Biometric Finger Vein Recognition Using Evolutionary Algorithm with Deep Learning
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作者 Mohammad Yamin Tom Gedeon +1 位作者 Saleh Bajaba Mona M.Abusurrah 《Computers, Materials & Continua》 SCIE EI 2023年第6期5659-5674,共16页
In recent years,the demand for biometric-based human recog-nition methods has drastically increased to meet the privacy and security requirements.Palm prints,palm veins,finger veins,fingerprints,hand veins and other a... In recent years,the demand for biometric-based human recog-nition methods has drastically increased to meet the privacy and security requirements.Palm prints,palm veins,finger veins,fingerprints,hand veins and other anatomic and behavioral features are utilized in the development of different biometric recognition techniques.Amongst the available biometric recognition techniques,Finger Vein Recognition(FVR)is a general technique that analyzes the patterns of finger veins to authenticate the individuals.Deep Learning(DL)-based techniques have gained immense attention in the recent years,since it accomplishes excellent outcomes in various challenging domains such as computer vision,speech detection and Natural Language Processing(NLP).This technique is a natural fit to overcome the ever-increasing biomet-ric detection problems and cell phone authentication issues in airport security techniques.The current study presents an Automated Biometric Finger Vein Recognition using Evolutionary Algorithm with Deep Learning(ABFVR-EADL)model.The presented ABFVR-EADL model aims to accomplish bio-metric recognition using the patterns of the finger veins.Initially,the presented ABFVR-EADL model employs the histogram equalization technique to pre-process the input images.For feature extraction,the Salp Swarm Algorithm(SSA)with Densely-connected Networks(DenseNet-201)model is exploited,showing the proposed method’s novelty.Finally,the Deep-Stacked Denoising Autoencoder(DSAE)is utilized for biometric recognition.The proposed ABFVR-EADL method was experimentally validated using the benchmark databases,and the outcomes confirmed the productive performance of the proposed ABFVR-EADL model over other DL models. 展开更多
关键词 Biometric authentication finger vein recognition deep learning evolutionary algorithm SECURITY PRIVACY
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Multiple flexor tendon ruptures due to osteochondroma of the hamate:A case report
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作者 Tae Young Kwon Young-Keun Lee 《World Journal of Clinical Cases》 SCIE 2023年第13期3038-3044,共7页
BACKGROUND Closed rupture of the little and ring finger flexor tendons caused by the hamate is mostly associated with a fracture or nonunion of the hamate hook.Only one case of a closed rupture of the finger flexor te... BACKGROUND Closed rupture of the little and ring finger flexor tendons caused by the hamate is mostly associated with a fracture or nonunion of the hamate hook.Only one case of a closed rupture of the finger flexor tendon caused by osteochondroma in the hamate has been reported.Here,we present a case study to highlight the possibility of hamate osteochondroma as a rare cause of finger closed flexor tendon rupture based on our clinical experience and literature review.CASE SUMMARY A 48-year-old man who had been a rice-field farmer for 7–8 h a day for the past 30 years visited our clinic due to the loss of right little finger and ring finger flexion involving both the proximal and distal interphalangeal joints.The patient was diagnosed with a complete rupture of the ring and little finger flexors because of the hamate and was pathologically diagnosed with an osteochondroma.Exploratory surgery was performed,and a complete rupture of the ring and little finger flexors due to an osteophyte-like lesion of the hamate was observed,which was pathologically diagnosed as an osteochondroma.CONCLUSION One should consider that osteochondroma in the hamate may be the cause of closed tendon ruptures. 展开更多
关键词 Flexor tendon FINGER Closed tendon rupture HAMATE OSTEOCHONDROMA Case report
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Iatrogenic flexor tendon rupture caused by misdiagnosing sarcoidosis-related flexor tendon contracture as tenosynovitis: A case report
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作者 Rui Yan Zhe Zhang +2 位作者 Long Wu Zhi-Peng Wu He-De Yan 《World Journal of Clinical Cases》 SCIE 2023年第36期8512-8518,共7页
BACKGROUND Sarcoidosis is a multisystem disease characterized by granuloma formation in various organs.Sarcoidosis-related flexor tendon contractures are uncommon in clinical settings.This contracture is similar to st... BACKGROUND Sarcoidosis is a multisystem disease characterized by granuloma formation in various organs.Sarcoidosis-related flexor tendon contractures are uncommon in clinical settings.This contracture is similar to stenosing tenosynovitis and po-tentially leads to misdiagnosis and mistreatment.Herein,we report a rare case of sarcoidosis-related finger flexor tendon contracture that was misdiagnosed as tenosynovitis.A 44-year-old woman presented to our department with flexion contracture of the right ring and middle fingers.The patient was misdiagnosed with tenosynovitis and underwent acupotomy release of the A1 pulley of the middle finger in an-other hospital that resulted in iatrogenic rupture of both the superficial and profundus flexors.Radiological presentation showed multiple sarcoid involve-ments in the pulmonary locations and ipsilateral forearm.A diagnosis of sar-coidosis was made based on the presence of non-caseating granulomas with tubercles consisting of Langhans giant cells with lymphocyte infiltration on biopsy,and the patient underwent surgical repair for the contracture.After 2 mo,the patient experienced another spontaneous rupture of the repaired middle finger tendon and underwent surgical re-repair.Satisfactory results were achieved at the 10 mo follow-up after reoperation.CONCLUSION Sarcoidosis-related finger contractures are rare;thus,caution should be exercised when dealing with such patients to avoid incorrect treatment. 展开更多
关键词 SARCOIDOSIS Finger CONTRACTURE IATROGENIC MISDIAGNOSIS Case report
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Finger compartment syndrome due to a high-pressure washer injury:A case report
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作者 Jun Ho Choi Seung Yeon Choi +2 位作者 Jae Ha Hwang Kwang Seog Kim Sam Yong Lee 《World Journal of Clinical Cases》 SCIE 2023年第13期3017-3021,共5页
BACKGROUND Although the finger compartment syndrome is not common,it compresses the neurovascular bundles in a limited space and blocks blood flow to the fingers,causing necrosis of the fingertips.Finger fasciotomy th... BACKGROUND Although the finger compartment syndrome is not common,it compresses the neurovascular bundles in a limited space and blocks blood flow to the fingers,causing necrosis of the fingertips.Finger fasciotomy through unilateral or bilateral midline release of the finger can achieve decompression of the finger compartment.Herein,we report a case of the compartment syndrome in a finger injury caused by a high-pressure water flow which is commonly used in car washing stations.CASE SUMMARY A 60-year-old man injured his right middle finger while using a high-pressure washer at a car washing station.The patient complained of severe pain in his middle finger and a 0.2 cm punctured open wound on the volar side of the distal phalangeal joint of the middle finger.The fingertip was pale,numb,and characterized by severe swelling and a limited range of motion.Finger radiography showed that there was no fracture in the finger.Digital decompression was performed through finger fasciotomy by bilateral midline incision.On the second day after surgery,the color of the fingertip returned to pink,swelling was resolved,and the range of motion returned to normal.The sensation of the fingertip was completely restored,and the capillary refill test and pinprick test were positive.CONCLUSION The fingertip compartment syndrome can be caused by a high-pressure water flow damage to the fingers when using high-pressure washers at a car washing station.To avoid finger necrosis,rapid diagnosis of the finger compartment syndrome and appropriate digital decompression are essential to better outcome. 展开更多
关键词 Compartment syndrome Crush injuries FASCIOTOMY Finger injuries Case report
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Considerations for gluten free foods-pearl and finger millet processing and market demand
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作者 Manivannan Selladurai Manoj Kumar Pulivarthi +3 位作者 Anu Suprabha Raj Mehreen Iftikhar P.V.Vara Prasad Kaliramesh Siliveru 《Grain & Oil Science and Technology》 CAS 2023年第2期59-70,共12页
The market demand for gluten free foods is increasing due to frequent incidences of celiac disease and increasing awareness on consumption of gluten free foods.Millets have become the major constituent of diet as they... The market demand for gluten free foods is increasing due to frequent incidences of celiac disease and increasing awareness on consumption of gluten free foods.Millets have become the major constituent of diet as they are gluten-free and also excellent sources of micro and macro nutrients such as vitamins,minerals,dietary fibers and phenolic compounds.Among various millets,the finger millet and the pearl millet are the two most important and common millet varieties grown extensively.Since,they are regarded as the staple foods of the poor and vulnerable populations,development of new products and improvements in their nutritional quality will aid in the general health of these population.Processing of millets and production of variable gluten-free ready-to-eat and nutritional supplements has increased their market value in the recent years.Furthermore,processing can also help in shelf-life extension of the millets with nutritional enrichment,expanding its markets to non-traditional millet consumers.In this context,the present review is aimed to focus on the current processing methods to develop products from the two millet varieties that are gluten free and outline their nutritional benefits. 展开更多
关键词 Pearl millet Finger millet Nutritional value PROCESSING Market value
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