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Extramedullary plasmacytoma with the uvula as first affected site:A case report

World Journal of Clinical Oncology 2025年第1期16卷 53-58页

作者： Jing Yang Hui Peng sheng-Ke Tu Min Li kui Song Department of Hematology The First Affiliated Hospital of Jishou UniversityJishou 416000Hunan ProvinceChina Department of Pharmacy The First Affiliated Hospital of Jishou UniversityJishou 416000Hunan ProvinceChina

BACKGROUND Extramedullary plasmacytoma(EMP)represents one of the rarer forms of plasma cell malignancies,capable of impacting a variety of tissues and organs throughout the *** majority of EMP cases are predominantly found in the head and neck region,especially within the laryngopharynx,as well as in the gastrointestinal *** there have been documented instances of oropharyngeal involvement in EMP cases in the academic literature,it is important to note that EMP specifically affecting the uvula is exceedingly ***,it is noteworthy that over 60% of epithelial carcinomas in the upper respiratory tract and oropharynx tend to metastasize to the cervical lymph nodes,indicating a propensity for regional spread in these types of *** this context,we present a rare case of extramedullary plasmacytoma where the uvula served as the initially affected *** case emphasizes the need for heightened awareness among clinicians regarding such unusual comorbidities,as early recognition and diagnosis can significantly influence patient management and treatment *** addition,a review of the relevant literature is included to further educate and inform healthcare professionals about this rare presentation,ultimately aiming to enhance clinical understanding and improve patient care in similar *** SUMMARY A 51-year-old man was admitted to our hospital because of a slowly enlarging neck mass.A physical examination revealed a palpable left lymph node,and magnetic resonance imaging(MRI)of the oropharynx and the neck showed a soft tissue mass in the oropharynx and enlargement of multiple lymph nodes in the *** soft tissue mass was diagnosed as plasmacytoma by immunohistochemical *** immunoglobulins and bone marrow biopsy showed normal ***,we diagnosed that as EMP of the *** four cycles of adjuvant chemotherapy dominated by bortezomib,MRI reexamination showed a significant reduction of the mass

关键词： Extramedullary plasmacytoma Plasmacytoma Uvula Multiple myeloma Case report

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Chondroitinase ABC combined with Schwann cell transplantation enhances restoration of neural connection and functional recovery following acute and chronic spinal cord injury

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Neural Regeneration Research 2025年第5期20卷 1467-1482页

作者： Wenrui Qu Xiangbing Wu Wei Wu Ying Wang Yan Sun Lingxiao Deng Melissa Walker Chen Chen Heqiao dai Qi Han Ying Ding Yongzhi Xia George Smith Rui Li Nai-kui Liu Xiao-Ming Xu Spinal Cord and Brain Injury Research Group Stark Neurosciences Research InstituteDepartment of Neurological SurgeryIndiana University School of MedicineIndianapolisINUSA Department of Hand Surgery the Second Hospital of Jilin UniversityChangchunJilin ProvinceChina Shriners Hospitals Pediatric Research Center Temple University School of MedicinePhiladelphiaPAUSA Department of Anatomy&Cell Biology Indiana University School of MedicineIndianapolisINUSA

Schwann cell transplantation is considered one of the most promising cell-based therapy to repair injured spinal cord due to its unique growth-promoting and myelin-forming properties.A the Food and Drug Administration-approved Phase I clinical trial has been conducted to evaluate the safety of transplanted human autologous Schwann cells to treat patients with spinal cord injury.A major challenge for Schwann cell transplantation is that grafted Schwann cells are confined within the lesion cavity,and they do not migrate into the host environment due to the inhibitory barrier formed by injury-induced glial scar,thus limiting axonal reentry into the host spinal *** we introduce a combinatorial strategy by suppressing the inhibitory extracellular environment with injection of lentivirus-mediated transfection of chondroitinase ABC gene at the rostral and caudal borders of the lesion site and simultaneously leveraging the repair capacity of transplanted Schwann cells in adult rats following a mid-thoracic contusive spinal cord *** report that when the glial scar was degraded by chondroitinase ABC at the rostral and caudal lesion borders,Schwann cells migrated for considerable distances in both rostral and caudal *** Schwann cell migration led to enhanced axonal regrowth,including the serotonergic and dopaminergic axons originating from supraspinal regions,and promoted recovery of locomotor and urinary bladder ***,the Schwann cell survival and axonal regrowth persisted up to 6 months after the injury,even when treatment was delayed for 3 months to mimic chronic spinal cord *** findings collectively show promising evidence for a combinatorial strategy with chondroitinase ABC and Schwann cells in promoting remodeling and recovery of function following spinal cord injury.

关键词： axonal regrowth bladder function chondroitinase ABC functional recovery glial scar lentivirus migration Schwann cell spinal cord injury transplantation

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一种无乘法的整数DCT快速实现方法

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微电子学与计算机 2008年第5期25卷 11-13页

作者：戴声奎刘建国汪国有祝平平华中科技大学图像识别与人工智能研究所湖北武汉430074

提出了一种无乘法的整数离散余弦变换(DCT)的实现方法:首先将蝶形运算的浮点数放大为整数,将浮点运算转化成定点的整数运算,然后根据蝶形运算的特点,将蝶形中的乘法转化为基于数值移位和累加的运算过程,从而得到一种通用的快速DCT实现方法.

关键词：图像压缩离散余弦变换整数运算

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一种低码率下的新型码率控制策略

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计算机科学 2006年第1期33卷 60-63页

作者：朱光喜戴声奎李霄刘文予张江山华中科技大学电子与信息工程系武汉430074

在大多数视频压缩标准中,码率控制方法都是针对中高码率情况而设计的,而在较低码率情况下的工作情况都不够理想。针对这个问题,本文提出了一个较低码率情况下的码率预测模型,并在该模型基础上建立起一种针对较低码率情况的码率控制策略... 详细信息

在大多数视频压缩标准中,码率控制方法都是针对中高码率情况而设计的,而在较低码率情况下的工作情况都不够理想。针对这个问题,本文提出了一个较低码率情况下的码率预测模型,并在该模型基础上建立起一种针对较低码率情况的码率控制策略。实验结果证明了这种码率控制策略的有效性。

关键词：视频压缩码率控制有效比特位低码率码率控制策略视频压缩标准预测模型

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德国《交易所法》对我国相关立法的启示

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上海财经大学学报 2001年第6期3卷 42-49页

作者：戴奎生南京大学中德经济法研究所江苏210008

本文首先对德国《交易所法》所规制的交易所组织机构的设置和交易说明书的法律责任等主要内容的进行介绍 ,接着指出我国现行的《证券法》对有关交易所的规定在组织机构、法律监管、交易说明书的法律责任方面存在着重大缺陷。最后。

关键词：德国证券交易所交易所法中国法制建设证券法

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Research status and prospects of the fractal analysis of metal material surfaces and interfaces

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 20-38页

作者： Qinjin dai Xuefeng Liu Xin Ma Shaojie Tian Qinghe Cui Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology BeijingBeijing 100083China Beijing Laboratory of Metallic Materials and Processing for Modern Transportation University of Science and Technology BeijingBeijing 100083China Laboratory for Advanced Materials Processing of Ministry of Education University of Science and Technology BeijingBeijing 100083China School of Mechanical and Electrical Engineering Xinjiang Institute of EngineeringUrumqi 830023China

As a mathematical analysis method,fractal analysis can be used to quantitatively describe irregular shapes with self-similar or self-affine *** analysis has been used to characterize the shapes of metal materials at various scales and *** methods make it difficult to quantitatively describe the relationship between the regular characteristics and properties of metal material surfaces and ***,fractal analysis can be used to quantitatively describe the shape characteristics of metal materials and to establish the quantitative relationships between the shape characteristics and various properties of metal *** the perspective of two-dimensional planes and three-dimensional curved surfaces,this paper reviews the current research status of the fractal analysis of metal precipitate interfaces,metal grain boundary interfaces,metal-deposited film surfaces,metal fracture surfaces,metal machined surfaces,and metal wear *** relationship between the fractal dimensions and properties of metal material surfaces and interfaces is *** from three perspectives of fractal analysis,namely,research scope,image acquisition methods,and calculation methods,this paper identifies the direction of research on fractal analysis of metal material surfaces and interfaces that need to be *** is believed that revealing the deep influence mechanism between the fractal dimensions and properties of metal material surfaces and interfaces will be the key research direction of the fractal analysis of metal materials in the future.

关键词： metal material surfaces and interfaces fractal analysis fractal dimension homogeneity

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A Multi-Objective Particle Swarm Optimization Algorithm Based on Decomposition and Multi-Selection Strategy

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Computers, Materials & Continua 2025年第1期82卷 997-1026页

作者： Li Ma Cai dai Xingsi Xue Cheng Peng School of Computer Science Shaanxi Normal UniversityXi’an710119China Fujian Provincial Key Laboratory of Big Data Mining and Applications Fujian University of TechnologyFuzhou350118China Information Construction and Management Center and Institute of Artificial Intelligence and Educational New Productivity Ningxia Normal UniversityGuyuan756099China

The multi-objective particle swarm optimization algorithm(MOPSO)is widely used to solve multi-objective optimization *** the article,amulti-objective particle swarm optimization algorithmbased on decomposition and multi-selection strategy is proposed to improve the search ***,two update strategies based on decomposition are used to update the evolving population and external archive,***,a multiselection strategy is *** first strategy is for the subspace without a non-dominated *** the neighbor particles,the particle with the smallest penalty-based boundary intersection value is selected as the global optimal solution and the particle far away fromthe search particle and the global optimal solution is selected as the personal optimal solution to enhance global *** second strategy is for the subspace with a non-dominated *** the neighbor particles,two particles are randomly selected,one as the global optimal solution and the other as the personal optimal solution,to enhance local *** third strategy is for Pareto optimal front(PF)discontinuity,which is identified by the cumulative number of iterations of the subspace without non-dominated *** the subsequent iteration,a new probability distribution is used to select from the remaining subspaces to ***,an adaptive inertia weight update strategy based on the dominated degree is designed to further improve the search ***,the proposed algorithmis compared with fivemulti-objective particle swarm optimization algorithms and five multi-objective evolutionary algorithms on 22 test *** results show that the proposed algorithm has better performance.

关键词： Multi-objective optimization multi-objective particle swarm optimization decomposition multi-selection strategy

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TZSearch算法分析和性能改进方法

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通信技术 2011年第3期44卷 63-65页

作者：杨中华戴声奎汤秀丽华侨大学信息科学与工程学院厦门361008 厦门微电子股份有限公司博士后工作站厦门361008

研究和改进多视点视频平台(JMVC,Joint Multi-view Video Coding)中的TZSearch快速搜索算法。首先介绍TZSearch算法原理、宏块最优匹配点分布特点及阈值设置方法,然后根据多视点视频帧间和视间的不同特性,结合钻石搜索算法和光栅搜索算... 详细信息

研究和改进多视点视频平台(JMVC,Joint Multi-view Video Coding)中的TZSearch快速搜索算法。首先介绍TZSearch算法原理、宏块最优匹配点分布特点及阈值设置方法,然后根据多视点视频帧间和视间的不同特性,结合钻石搜索算法和光栅搜索算法的特点及TZSearch中阈值设置规律,提出了两种改进的TZSearch快速搜索算法。实验结果表明,针对不同特性的序列进行测试,在保证重建视频质量与编码比特率的前提下,相比原算法,两种改进后的算法效果明显,总编码时间可减少30%-50%。

关键词：多视点视频 TZSearch 钻石搜索光栅搜索

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基于统计结构梯度特征的行人检测

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通信技术 2012年第7期45卷 75-77,93页

作者：定志锋戴声奎陈美龙国立华侨大学信息科学与工程学院福建厦门361021

针对自然背景下的行人检测问题,从人体最显著的轮廓信息出发,提出一种基于统计结构梯度(SSG,Statistical Structural Gradient)的行人检测算法。采用支持向量机(SVM,Support Vector Machine)算法对数据库中行人样本的SSG特征进行训练,... 详细信息

针对自然背景下的行人检测问题,从人体最显著的轮廓信息出发,提出一种基于统计结构梯度(SSG,Statistical Structural Gradient)的行人检测算法。采用支持向量机(SVM,Support Vector Machine)算法对数据库中行人样本的SSG特征进行训练,得到行人检测分类器。提出的SSG算法在sobel图像中仅做结构统计和角度幅值计算,能够采用积分图加速行人检测速度。对INRIA数据库中的288张样本进行测试,误检率(FPPW,False Positives Per Window)为10-5,检测率等于90.89%。

关键词：边缘信息统计结构梯度 SSG SVM

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基于局部显著性特征的人体检测方法

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通信技术 2012年第4期45卷 92-94,101页

作者：李嘉懿戴声奎定志锋国立华侨大学信息科学与工程学院福建厦门361021

通过分析人体轮廓的性质,结合Sobel算子、HOG和LBP算子,提出一种基于脊模型的局部显著性特征提取方法,该特征将人体轮廓的方向特性和结构特性有机结合,属于一种多属性融合的人体描述方法。在人体梯度空间中,通过使用改进的LBP算子和简... 详细信息

通过分析人体轮廓的性质,结合Sobel算子、HOG和LBP算子,提出一种基于脊模型的局部显著性特征提取方法,该特征将人体轮廓的方向特性和结构特性有机结合,属于一种多属性融合的人体描述方法。在人体梯度空间中,通过使用改进的LBP算子和简化的梯度方向直方图进行特征的提取、训练和识别。实验表明,使用该特征可有效的减少计算复杂度,提高行人检测速度;但与HOG相比,由于描述人体的特征维数较少,因此人体识别的检测率还有待提高。

关键词：图像处理局部显著性边缘轮廓人体检测

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