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darier Ferrand mammary Dermatofibrosarcoma Simulating a Breast-Type myofibroblastoma: A Case Report

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Advances in Breast Cancer Research 2023年第1期12卷 10-16页

作者： michel Auguste mouelle Sarah gaëlle Adiang Esther meka Department of Surgery ICANS 17 Rue Albert Calmette Strasbourg Cedex Strasbourg France Fondation médicale Adlucem Yaoundé Cameroon Faculty of medicine and Biomedical Sciences University of Yaoundé I Yaoundé Cameroon

myofibroblastoma and darier Ferrand’s dermatofibrosarcoma are rare entities that are similar both in terms of clinical morphological characteristics and histological characteristics. We report the case of a 49-year-old non-menopausal woman with a history of right breast lumpectomy. Supported by the Chompret criteria, an oncogenetic consultation was performed. Clinical examination revealed a firm 25 mm mass on the medial part of the left breast with skin involvement. A biopsy was performed and analysis result came back in favor of a cellular type myofibroblastoma showing a fibrous component consisting of spindle cells with a herringbone arrangement. Anatomopathological results concluded to a dermatofibrosarcoma of darier Ferrand while immunohistochemistry stated a tumor population strongly positive for CD34 expression. The search for a rearrangement of the collagen type I alpha 1 gene (COL1A1) by fluorescence in situ hybridization (FISH) was positive. The diagnosis of Dermatofibrosarcoma of darier Ferrand can be suspected on imaging and confirmed by histology. Surgical treatment of darier Ferrand dermatofibrosarcoma consists of wide excision of the lesions with margins greater than 2 cm, on which the prognosis mainly depends. micrographic surgery and oncoplastic breast surgery are of major interest in this location.

关键词： myofibroblastoma Dermatofibrosarcoma of darier Ferrand Breast

Human-Environment Patterns of metropolitan Spatial Restructuring:Atlanta,Georgia and Shanghai,PRC,1950-2000

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世界地理研究 2002年第2期11卷 27-33,87页

作者： Susan m. Walcott (Department of Anthropology & Geography, Georgia State University, Atlanta, ga 30303-3083, U. S.) DepartmentofAnthropology&Geography GeorgiaStateUniversityAtlantaGA30303-3083U.S.

This paper compares the spatial and environmental impacts of rapid growth through the five decades in Atlanta, Georgia and Shanghai, PRC. Both metropolitan areas represent the prime demographic and economic engines of their respective regions, and exhibit some of the worst environmental degradation problems, though from significantly different sources. Atlanta epitomizes spatial patterns of sprawl arising from an unfettered topographic and economic setting. Shanghai, in a political economy transitioning from decades of centralized constraint, seeks to spread out some of the world’s densest core settlement population to its inner suburbs. Remotely sensed photographic images are utilized to classify land use changes, while census figures and environmental data are integrated in a Geographic Information System to correlate shifts through time.

关键词：亚特兰大州上海市乔治亚州人口-环境模式空间结构调整城市

damage Identification of A TLP Floating Wind Turbine by meta-Heuristic Algorithms

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China Ocean Engineering 2015年第6期29卷 891-902页

作者： m.m.Ettefagh mechanical Engineering Department University of Tabriz

damage identification of the offshore floating wind turbine by vibration/dynamic signals is one of the important and new research fields in the Structural Health monitoring（SHm）. In this paper a new damage identification method is proposed based on meta-heuristic algorithms using the dynamic response of the TLP（Tension-Leg Platform） floating wind turbine structure. The Genetic Algorithms（ga）, Artificial Immune System（AIS）, Particle Swarm Optimization（PSO）, and Artificial Bee Colony（ABC） are chosen for minimizing the object function, defined properly for damage identification purpose. In addition to studying the capability of mentioned algorithms in correctly identifying the damage, the effect of the response type on the results of identification is studied. Also, the results of proposed damage identification are investigated with considering possible uncertainties of the structure. Finally, for evaluating the proposed method in real condition, a 1/100 scaled experimental setup of TLP Floating Wind Turbine（TLPFWT） is provided in a laboratory scale and the proposed damage identification method is applied to the scaled turbine.

关键词： floating wind turbine multi-body dynamics damage identification meta-heuristic algorithms optimization

延性材料中球腔膨胀模型及其解析解的进一步研究

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安徽理工大学学报（自然科学版） 2017年第3期37卷 6-16页

作者：高光发李永池南京理工大学机械工程学院江苏南京210094 中国科学技术大学近代力学系安徽合肥230027 新加坡国立大学冲击工程实验室新加坡117576

空腔膨胀模型是当前广泛应用于许多工程领域的一个理论模型。基于Euler坐标构架,对球腔膨胀过程中不同阶段介质内的应力应变场的通解进行理论推导。讨论了当前国内外的一些推导成果的不足之处,分析表明当前的研究结果具有弹塑性解不连... 详细信息

空腔膨胀模型是当前广泛应用于许多工程领域的一个理论模型。基于Euler坐标构架,对球腔膨胀过程中不同阶段介质内的应力应变场的通解进行理论推导。讨论了当前国内外的一些推导成果的不足之处,分析表明当前的研究结果具有弹塑性解不连续、混淆了弹性体积压缩率和塑性阶段体积压缩率的概念等局限性,是一种间断的特解。给出了考虑塑性压缩性和塑性不可压两种情况下的弹塑性通解,在此基础上给出了考虑初始球腔尺寸和弹性变形等相关参数的准确的、连续的通解;并对塑性阶段压缩率的影响进行分析讨论。经过验证分析,这些通解更加普适,其简化及在特定假设下的特解与当前的国内外研究结果一致,该研究为球腔膨胀模型的应用和深化研究提供一定的参考。

关键词：球腔膨胀空腔膨胀应用力学塑性力学

Development and postnatal neurogenesis in the retina: a comparison between altricial and precocial bird species

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Neural Regeneration Research 2021年第1期16卷 16-20页

作者： Guadalupe Álvarez-Hernán José Antonio de mera-Rodríguez Yolanda gañán Jorge Solana-Fajardo Gervasio martín-Partido Joaquín Rodríguez-León Javier Francisco-morcillo Área de Biología Celular Departamento de AnatomíaBiología Celular y ZoologíaFacultad de CienciasUniversidad de ExtremaduraBadajozSpain Área de Anatomía Humana Departamento de AnatomíaBiología Celular y ZoologíaFacultad de MedicinaUniversidad de ExtremaduraBadajozSpain Servicio de Oftalmología Complejo Hospitalario Universitario de BadajozBadajozSpain

The visual system is affected by neurodegenerative diseases caused by the degeneration of specific retinal neurons,the leading cause of irreversible blindness in *** vertebrate phylogeny,the retina has two kinds of specialized niches of constitutive neurogenesis:the retinal progenitors located in the circumferential marginal zone and müller *** proliferative activity in the retinal progenitors located in the circumferential marginal zone in precocial birds such as the chicken,the commonest bird model used in developmental and regenerative studies,is very *** region adds only a few retinal cells to the peripheral edge of the retina during several months after hatching,but does not seem to be involved in retinal regeneration.müller cells in the chicken retina are not proliferative under physiological conditions,but after acute damage some of them undergo a reprogramming event,dedifferentiating into retinal stem cells and generating new retinal ***,regenerative response after injury occurs with low efficiency in the precocial avian *** contrast,it has recently been shown that neurogenesis is intense in the retina of altricial birds at *** particular,abundant proliferative activity is detected both in the circumferential marginal zone and in the outer half of the inner nuclear ***,stem cell niches are very active in the retina of altricial *** more extensive research is needed to assess the potential of proliferating cells in the adult retina of altricial birds,it emerges as an attractive model for studying different aspects of neurogenesis and neural regeneration in vertebrates.

关键词： altricial birds circumferential marginal zone müller glia postnatal neurogenesis precocial regeneration retinogenesis

Vertical gaN Shottky barrier diode with thermally stable TiN anode

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Chinese Physics B 2021年第3期30卷 479-482页

作者： da-Ping Liu Xiao-Bo Li Tao-Fei Pu Liu-An Li Shao-Heng Cheng Qi-Liang Wang Department of Physics Xinxiang UniversityXinxiang 453003China Institute of Technology and Science Tokushima UniversityTokushima 770-8506Japan School of Electronics and Information Technology Sun Yat-Sen UniversityGuangzhou 510275China State Key Laboratory of Superhard material Jilin UniversityChangchun 130012China

Vertical gaN Schottky barrier diodes with Ti N anodes were fabricated to investigate the electrical performance. The turn-on voltage and specific on-resistance of diodes are deduced to be approximately 0.41 V and 0.98 mΩ·cm2, *** current-voltage curves show rectifying characteristics under different temperatures from 25℃ to 200℃, implying a good thermal stability of Ti N/ga N contact. The low-frequency noise follows a 1/f behavior due to the multiple traps and/or barrier inhomogeneous at Ti N/ga N interface. The trapping/de-trapping between traps and Fermi level causes the slight capacitance dispersion under reverse voltage.

关键词： gaN Vertical Schottky barrier diode TiN interface quality

Vitamin D receptor gene Tru9I polymorphism and risk for incidental sporadic colorectal adenomas

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World Journal of gastroenterology 2005年第31期11卷 4794-4799页

作者： You-Ling Gong da-Wen Xie Zong-Lin Deng Roberd m Bostick Xi-Jiang miao Jin-Hui Zhang Zhi-Hong Gong Tumor Center West China Hospital Sichuan University Chengdu 610041 Sichuan Province China Department of Epidemiology and Biostatistics School of Public Health and South Carolina Cancer CenterUniversity of South Carolina Columbia SC 29203 USA Department of Epidemiology Rollins Schoolof Public Health Emory University Atlanta GA 30322 USA Department of Computer Science and Engineering University of South Carolina Columbia SC 29203 USA

AIm： Recent laboratory and epidemiological studies suggest that vitamin D is a potential agent for colorectal cancer prevention. Its function is partially mediated by the vitamin D receptor （VDR）. The aim of this study was to investigate whether a novel G （allele ‘U’g〉A （allele ‘u’ polymorphism （Tru9I） in the VDR intron 8 region is associated with risk for colorectal adenoma in a colonoscopy-based case-control study. mETHODS： Genotyping for a total of 391 subjects was carried out through PCR and restriction fragment length polymorphism. RESULTS： The frequencies of ‘U’ and ‘u’ alleles were 89.3% and 10.7%, respectively. The ‘Uu’ and ‘uu’ genotypes were associated with decreased risk for adenoma （OR, 0.71; 95%CI, 0.40-1.25）. The inverse association was more pronounced for multiple adenomas and adenomas that were larger had moderate or greater dysplasia, or were sessile： the odds ratios （ORs） were, 0.51 （95%CI, 0.21-1.24）, 0.37 （95%CI, 0.11-1.28）, 0.68 （95%CI, 0.33- 1.41）, and 0.36 （95%CI, 0.13-0.97） respectively. In joint/ combined analyses, inverse associations were more obvious among those who had at least one ‘u’ allele and also were younger （OR, 0.60; 95%CI, 0.26-1.37）, women （OR, 0.38; 95%CI, 0.17-0.88）, did not smoke （OR, 0.39; 95%CI, 0.13-1.23）, or took NSAID （OR, 0.38; 95%CI, 0.12-1.25）, but no evidence existed for interactions with calcium or vitamin D ***： Our findings suggest that the VDR TrugI polymorphism may be associated with lower risk for colorectal adenoma, particularly in interaction with various risk factors, but not with calcium or vitamin D.

关键词： Case-control study Colorectal adenoma Colorectal neoplasia Vitamin D receptor Genetic polymorphism

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城市地区灾害评价和沉积学模式的应用

国外第四纪地质 1989年第3期 14-24页

作者： m‘Kr.,ga 王伍云

^(99m)Tc制剂作心肌灌注显像的生理学基础

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国外医学（放射医学核医学分册） 1993年第4期17卷 184-188页

作者： Beller ga Watson DD 曹亦洪

近年来,人们对几种^(99m)Tc标记的心肌灌注显像剂进行了研究,以确定它们在评价局部心肌血流和细胞存活力的效果。由于极好的物理学特征,这些^(99m)Tc制剂可能比^(201)Tl更适合作心肌灌注显像。^(99m)Tc的能峰为140keV,适宜于γ照相成像... 详细信息

近年来,人们对几种^(99m)Tc标记的心肌灌注显像剂进行了研究,以确定它们在评价局部心肌血流和细胞存活力的效果。由于极好的物理学特征,这些^(99m)Tc制剂可能比^(201)Tl更适合作心肌灌注显像。^(99m)Tc的能峰为140keV,适宜于γ照相成像,且成象质量比^(201)Tl高。^(99m)Tc半衰期短,更好的放射剂量测定使它的使用剂量可比铊大10～15倍。

关键词：锝99m 心肌放射性核素成像