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Search Results: 1 - 10 of 115893 matches for " LIU Jin-fu "
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An analysis of Cyclin D1, Cytokeratin 5/6 and Cytokeratin 8/18 expression in breast papillomas and papillary carcinomas
Yu Wang, Jin-fu Zhu, Ying-ying Liu, Gui-ping Han
Diagnostic Pathology , 2013, DOI: 10.1186/1746-1596-8-8
Abstract: Fifty-nine cases of papillary lesions including 36 papillomas and 23 intracystic papillary carcinomas were examined. Cyclin D1, CK 5/6 and CK 8/18 expression levels were evaluated by double immunostaining.Cyclin D1 is highly expressed in papillary carcinomas (27.54%?±?15.43%) compared with papillomas (8.81%?±?8.41%, p?<?0.01). Cyclin D1 is predominantly expressed in Cytokeratin 8/18- expressing cells, rather than in Cytokeratin 5/6-expressing cells, regardless of the type of lesion. In Papillomas, Cyclin D1 exhibited a mean 11.42% (11.42%?±?10.17%) co-expression rate with Cytokeratin 8/18 compared with a mean 2.50% (2.50%?±?3.24%) co-expression rate with Cytokeratin 5/6 (p?<?0.01). In papillary carcinomas, Cyclin D1 exhibited a mean 34.74% (34.74%?±?16.32%) co-expression rate with Cytokeratin 8/18 compared with a co-expression rate of 0.70% (0.70%?±?0.93%) with Cytokeratin 5/6 (p?<?0.01).The increase in Cyclin D1 suggests an association of Cyclin D1 staining with papillary carcinomas. Although Cyclin D1 is an effective marker for the differential diagnosis of other papillary lesions, it cannot be used to distinguish between papilloma and papillary carcinoma lesions because its expression occurs in both lesions. Our results show that Cyclin D1 and CK 5/6 staining could be used in concert to distinguish between the diagnosis of papilloma (Cyclin D1?<?4.20%, CK 5/6 positive) or papillary carcinoma (Cyclin D1?>?37.00%, CK 5/6 negative). In addition, our data suggest that Cyclin D1 is expressed only in the cancer stem or progenitor cells that co-immunostained with CK 8/18 in papillary carcinomas, and predominantly with CK 8/18 in the papillomas.The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/7299340558756848 webcitePapillary breast tumors consist of proliferative mammary epithelial cells that invade the ductal lumen and form fibro-vascular stalks that may evolve into branching arborescent structures. Intraductal papi
Review on Models of Homosexual Identity Development
同性恋认同发展的理论模型述评

LIU Jun,ZHANG Jin-Fu,
刘俊
,张进辅

心理科学进展 , 2009,
Abstract: 本质论取向的阶段模型和社会建构论取向的影响因素模型是早期的同性恋认同发展理论,两者对性倾向是否为人类的本质属性产生了激烈的争论。当代发展心理学从生态化理论、毕生发展观、生命历程观出发试图对这两种研究取向进行整合,并提出了相应的模型。未来的研究应该注意同性恋认同发展多样性的特点,正确理解对外暴露在认同发展中的作用,并把纵向研究作为以后的研究方向。最后,提出了中国同性恋认同的特点和本土化研究的假设
A MODIFIED LOGISTIC MODEL OF THE GROWTH PATTERN OF DOMINANCE IN A CASTANOPSIS KAWAKAMII POPULATION
格氏栲种群优势度增长改进模型的研究

LIU Jin-Fu,and,HONG Wei,
刘金福
,洪伟

植物生态学报 , 2001,
Abstract: 提出有限的空间种群增长的Logistic改进模型探讨格氏栲种群基面积增长规律,即dS/dt=rS(1-S^θ/K)。该模型通过树种的竞争特性因子θ控制,将指数增长、线性制约、下凹增长和上凸增长非线性制约概括一个统一的自适应性的非线性制约通用模型。运用改进单纯形对Logistic改进模型进行优化,拟合结果表明改进模型是格氏栲种群优势度增长动态变化的一个极好机理描述式,其增长速度最大是在141年。
Formation mechanism of anomalous eutectics in highly undercooled Ag--39.9 at%Cu alloy

Zhao Su,Li Jin-Fu,Liu Li,Zhou Yao-He,

中国物理 B , 2009,
Abstract: This paper investigates the solidification behaviour of the Ag--Cu eutectic alloy melt undercooled up to 100K. It is revealed that lamellar eutectics grow in a dendritic form in the Ag--Cu eutectic melt with undercooling equal to or greater than 76K. As undercooling increases, the remelted fraction of the primary eutectics during recalescence rises. The severe remelting and the subsequent ripening of the primary eutectic dendrites lead to the formation of anomalous eutectics.
LOW-LYING SPECTRA AND E2 TRANSITION RATES IN EVEN--EVEN Pd ISOTOPES IN THE INTERACTING BOSON MODEL

Liu Feng-ying,Zhang Jin-fu,Pak Jae-you,

中国物理 B , 2001,
Abstract: The positive parity collective states in the even-even 100Pd-116Pd isotopes are studied in the framework of the interacting boson model. A schematic Hamiltonian capable of describing their spectra and transition is used. It is found that the spectra can be well described by a U(5) plus SU(3) perturbation interaction. As the valence neutron number changes, the structure of the isotopes shows regular patterns of change. In the meantime, the behaviour of 0+2 can also be partially described by the model.
Structural Risk Minimization for Controlling Generalization Performance of Rough Set Learning Machine
粗糙集学习机器泛化性能控制的结构风险最小化方法

LIU Jin-fu,YU Da-ren,
刘金福
,于达仁

计算机科学 , 2009,
Abstract: The factors influencing the generalization performance of rough set learning machine were analyzed. Through introducing the principle of structural risk minimization into rough set learning process, structural risk minimization on rough set learning was proposed. Experiments on 12 UCI data sets show that the proposed method is effective for improving the generalization performance of rough set learning machine.
Simulation of four-body interaction in a nuclear magnetic resonance quantum information processor
Wen-Zhang Liu,Jin-Fu Zhang,Gui Lu Long
Physics , 2007,
Abstract: Four-body interaction plays an important role in many-body systems, and it can exhibit interesting phase transition behaviors. Historically it was the need to efficiently simulate quantum systems that lead the idea of a quantum computer. In this Letter, we report the experimental demonstration of a four-body interaction in a four- qubit nuclear magnetic resonance quantum information processor. The strongly modulating pulse is used to implement spin selective excitation. The results show a good agreement between theory and experiment.
Preparation and Characterization of Amphiphilic Ti-grafted KIT-1
两亲性含钛介孔KIT-1分子筛的制备与表征

LI Hui-Yun,LIU Yuan-Ying,WANG Shao-Mei,GUO Jin-Fu,
李惠云
,刘院英,王绍梅,郭金福

无机材料学报 , 2008,
Abstract: 以钛酸丁酯为钛源,以KIT-1为载体,采用嫁接法制备了含钛介孔分子筛Ti-KIT-1,将Ti-KIT-1分子筛经三甲基氯硅烷改性得到两亲性含钛介孔分子筛.利用XRD、DRS、FT-IR和低温N2吸附-脱附等手段对其进行了表征;并通过测定样品在水或有机物饱和蒸汽中的吸附量,研究了样品的两亲性.与改性前样品Ti-KIT-1相比,制备出的两亲性含钛分子筛保持了原来的介孔结构,其BET比表面积和BJH孔容均稍有下降.FT-IR和DRS结果说明该分子筛骨架中存在四配位钛,从而有可能成为催化烯烃环氧化反应的活性中心,由于外表面部分覆盖有增水性的硅烷基团而其它部分呈现亲水性,使分子筛表现出很好的两亲性.
内蒙古甲乌拉铅锌银矿区岩浆岩年代学、地球化学特征及其对成矿的约束
The zircon U Pb geochronology and the geochemistry of magmatic rocks and their constraints on the mineralization of Jiawula Pb Zn Ag deposit, Inner Mongolia, China.

戴蒙, 严光生, 刘翠, 邓晋福
DAI Meng
, YAN Guang-Sheng, LIU Cui, DENG Jin-Fu

- , 2016, DOI: 10.13745/j.esf.2016.05.026
Abstract: 内蒙古满洲里地区的甲乌拉铅锌银矿区的成岩、成矿事件及其相互关系目前仍有很大争议。文中对矿区内与成矿密切相关的石英斑岩、闪长玢岩开展详细研究。锆石SHRIMP UPb年代学研究表明:矿区致矿侵入体之一石英斑岩形成于(129±4.8) Ma,成矿晚(或后)期的闪长玢岩形成于约(124±2.5) Ma;认为铅锌银等成矿作用应发生于(129±4.8)~(124±2.5) Ma,为早白垩世末期。岩石地球化学特征显示石英斑岩具有高硅、高钾、贫钙等特征,TAS图上属于亚碱性系列,硅铁镁图上属于钙碱系列,硅钾图上属于高钾钙碱系列。轻重稀土分馏明显,具有明显的负铕异常。相对富集大离子亲石元素(LILE),而亏损高场强元素(HFSE),且具有低Sr、高Y等特征。闪长玢岩同样展现出高钾、高铝、贫钙特征,TAS图上属于亚碱性系列,硅铁镁图上属于拉斑系列;轻、重稀土分馏明显,具明显负铕异常,但稀土总量较高;相对富集大离子亲石元素(LILE),亏损高场强元素(HFSE),同具有低Sr、高Y等特征。这些研究结果表明:石英斑岩具有火山弧的特征,主要来源于壳源的熔融;闪长玢岩具有活动大陆边缘弧的特征,主要来源于地幔的熔融,但经历了壳源的混染上述岩浆与甲乌拉的铅锌银矿;推测应为蒙古—鄂霍次克洋由俯冲向陆陆转换阶段产物。
A MATHEMATICAL MODEL OF "THE ACCIDENTAL SLAUGH- TER" BETWEEN NATURAL ENEMIES IN NATURAL ENEMY-PEST SYSTEMS
关于天敌-害虫系统中天敌之间“误杀作用”的一种数学模型

Wang Jin-Fu,
王金福

生态学报 , 1991,
Abstract:
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