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Association between VDR Apal Polymorphism and Hip Bone Mineral Density Can Be Modified by Body Mass Index:A Study on Postmenopausal Chinese Women

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Acta Biochimica et Biophysica Sinica 2005年第1期 61-67页

作者： Hong XUI~(1,2. Dong-Hai XIONG~3.Fu-Hua XU~3.Yuan-Yuan ZHANG~3.Shu-Feng LEI~1 Hong-Wen DENG~(1,3.) ~1Laboratory of Molecular and Statistical Genetics,College of Life Sciences,hunan normal University.{2. 410081,China ~2.department of Physiology,Jiangxi Medical College,Nanchang 3.0006,China ~3.Osteoporosis Research Center and department of Biomedical Sciences,Creighton University Medical Center,Omaha,NE 6813.,USA

Osteoporosis is a major public health problem for old *** factors are considered tobe major contributors to the pathogenesis of postmenopausal *** vitamin D receptor(VDR)gene is a prominent candidate gene for the regulation of postmenopausal bone mass;however,despite exten-sive studies,controversy remains regarding its association with postmenopausal body mineral density(BMD)*** this study,a total of 2.0 healthy postmenopausal Chinese women were genotyped at the VDRApaI locus using polymerase chain reaction(PCR)-restriction fragment length polymorphism (RFLP).Rawhip BMD was significantly associated with VDR ApaI polymorphism with and without adjusting for age(P=0.015 and 0.040,respectively).This genetic effect can explain 3.3.0} of hip BMD ***,the significant association vanished after correcting for both age and body mass index(BMI)(P=0.169).Inaddition,we observed a significant association between VDR ApaI polymorphism with unadjusted BMI(P=0.042.or BMI adjusted for age(P=0.049).The raw hip BMD was also found to be significantly corre-lated with BMI(r=0.517,P=0.0001),with BMI explaining 2..3.% of the variation of hip *** of thesefacts prompt us to conclude that the significant association between the VDR ApaI genotype and hip BMDmay be modified by BMI in postmenopausal Chinese *** findings may partially explain the earlierinconsistent association results concerning the VDR gene and BMD,and highlight the importance of incorpo-rating covariates such as BMI into osteoporosis association studies.

关键词： body mass index(BMI) bone mineral density(BMD) genetic association osteoporosis vitamin D receptor(VDR)gene

Impact of the order of soliton on fiber optical parametric amplification in ultra-short signal wave

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Impact of the order of soliton on fiber optical parametric a...

B→K~*γ Decay in Top-Quark Two-Higgs-Doublet Model

2.07亚洲光电子会议非线形光学及应用分会场

作者： Lin Gui a Yufeng Shaob aSchool of physics and Information Science hunan {2. University {3. 410081 China bSchool of Computer and Communication hunan University {3. 410082.China

The ultra-short pulse optical parametric amplification based on continuous wave pump and pulse signal model is investigated by solving three nonlinear Schrdinger equations numerically. The effect of the order of soliton is presented by comparing the evolution process of signal pulse and the changing of root mean square width of signal. The phenomenon of signal pulse splitting and the broadening of the pulse will appear in the amplification process. Larger order of the soliton makes the pulse split at first, then begin to broaden. Smaller order of the soliton leads to the broadening of pulse firstly, then the pulse begin to split after propagating in a section of fiber.

关键词： fiber-optic parametric amplifier ultra-short pulse depleted pump regime pulse splitting the order of soliton broadening of signal pulse

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Communications in Theoretical physics 2006年第11期46卷 895-900页

作者： XIAO Zhen-Jun,~+ CHENG Hui-Hui, and L Lin-Xia department of physics and Institute of Theoretical physics, Nanjing {3. University, Nanjing 2.0097, China department of physics Nanjing Normal University Institute of Theoretical physics Nanjing Normal University

By employing the QCD factorization approach for the exclusive B→Vγ decays, we study the exclusive decay B→K~*γ in the top-quark two-Higgs-doublet model (T2.DM). Within the considered parameter space, we find the following conclusions (a) A light charged-Higgs boson with a mass about 2.0 GeV is clearly excluded by the date of B→K~*γ decay, and this lower limit is comparable with that from the inclusive B→Xγ decay; (b) The theoretical predictions for CP asymmetry of B→K~*γ in the T2.DM is always less than 1% in size; and (c) The isospin symmetry breaking for B→K~*γ decay in the SM and T2.DM considered here is around 6% in size and well consistent with the data and the general expectations.

关键词： B meson decay charged-Higgs boson branching ratio CP asymmetry

PREPARATION AND SURFACE CHARACTERIZATION OF TiO2.THIN FILMS ON GLASS BY MAGNETRON SPUTTERING METHOD

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Acta Metallurgica Sinica(English Letters) 2002年第2期15卷 207-209页

作者： L.S.Yin1,3., H. Shen2. and J.X. Zhang3. 1)College of Information Engineering, Central South University, changsha 410075, China 2.Guangzhou Institute of Energy Conversion, CAS, Guangzhou 510070, China 3.{3. of {2., Zhongshan University, Guang College of Information Engineering Central South University Changsha 410075 China

Ti thin films were firstly deposited on glass substrates by magnetron sputtering method, then sintered the Ti thin films in air atmosphere and finally TiO2.transparence thin films on glass substrates were obtained. The structure and surface morphologies of the thin films were characterized by X-ray diffraction and SEM. The growth process of the thin films has been observed. The annealing time and annealing temperatures have an affect on the growth of the films.

关键词： TiO2. thin film. magnetron sputtering

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一维介观结链中的双电荷孤子

物理学报 2001年第10期50卷 1984-1990页

作者：郑小宏曾朝阳匡乐满湖南师范大学物理系长沙410081

采用半经典模型研究了一维介观结链中两个岛上各存在一个剩余电子时的电势分布 ,发现在一维介观链中存在双电荷孤子 .双电荷孤子的主要特征是它的电势峰发生了劈裂 ,形成双峰 ,两峰在通常情况下不等高 .研究了双电荷孤子电势峰和阈电压... 详细信息

采用半经典模型研究了一维介观结链中两个岛上各存在一个剩余电子时的电势分布 ,发现在一维介观链中存在双电荷孤子 .双电荷孤子的主要特征是它的电势峰发生了劈裂 ,形成双峰 ,两峰在通常情况下不等高 .研究了双电荷孤子电势峰和阈电压对一维介观结链结构参数的依赖关系 .提出了研究双电荷孤子的等效单电荷孤子方法 ,表明在等效电荷区域 ,双电荷孤子的电势分布与等效单电荷孤子在同一区域的电势分布相同 .

关键词：一维介观结链双电荷孤子单电子效应等效单电荷弧子方法纳米材料

Narrow line Seyfert 1 galaxies: where are the broad line regions?

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Science China(physics,Mechanics & Astronomy) 2010年第12期53卷 2307-2311,2339-2343页

作者： MAO WeiMing 1,2.3., HU Chen 2., WANG JianMin 2., BIAN WeiHao 4 , ZHANG Shu 2.& ZHAO Gang 1 1 Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012. China 2.Key Laboratory for Particle Astrophysics, Institute of High Energy physics, Chinese Academy of Sciences, Beijing 100049, China 3.Graduate University of the Chinese Academy of Sciences, Beijing 100049, China 4 {2. of physics, Nanjing normal University, Nanjing 2.0011, China Chinese Academy of Sciences Key Laboratory of Optical Astronomy National Astronomical Observatories Beijing China (GRID:grid.9227.e) (ISNI:***) Chinese Academy of Sciences Key Laboratory for Particle Astrophysics Institute of High Energy Physics Beijing China (GRID:grid.9227.e) (ISNI:***) Graduate University of the Chinese Academy of Sciences Beijing China (GRID:grid.458514.9) Chinese Academy of Sciences Key Laboratory for Particle Astrophysics Institute of High Energy Physics Beijing China (GRID:grid.9227.e) (ISNI:***) Nanjing normal University Department of Physics Nanjing China (GRID:grid.260474.3) (ISNI:***) Chinese Academy of Sciences Key Laboratory of Optical Astronomy National Astronomical Observatories Beijing China (GRID:grid.9227.e) (ISNI:***)

A sample consisting of 2.1 narrow line Seyfert 1 galaxies (NLS1s) with high quality spectra from the Sloan Digital Sky Survey (SDSS) is selected to explore where broad line regions are in these objects. We find that the Hβ profile can be fitted well by three (narrow, intermediate and broad) Gaussian components, and the FWHM ratios of the broad to the intermediate components hold a constant of 3.0 roughly for the entire sample. If the broad components originate from the region scaled by the well-determined Hβ reverberation mapping relation, we find that the intermediate components originate from the inner edge of the torus, which is scaled by dust K-band reverberation. We find that the IC and the BC are strongly linked dynamically, but the relation of their covering factors is much more relaxed, implying that both regions are clumpy.

关键词： black hole physics galaxies: evolution quasars: general

Analytical Potential Energy Function,Spectroscopic Constants and Vibrational Levels for A^1E_u^+ State of Dimer ~7Li_2

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Communications in Theoretical physics 2007年第12期48卷 1081-1087页

作者： SHI De-Heng~1 MA Heng~1 SUN Jin-Feng~(1,2.and ZHU Zun-Lue~1~1 College of physics & Information Engineering,Henan normal University,Xinxiang 453.07,China~2.{2. of physics & Electron Science,Luoyang normal University,Luoyang 47102.,China College of physics & Information Engineering Henan Normal University Xinxiang 453007 China department of physics & Electron Science Luoyang Normal University Luoyang 471022 China

The symmetry-adapted-duster configuration-interaction method is used to investigate the spectroscopicproperties of ~7Li_2.A^1∑_u^+) over the internuclear distance ranging from 2.4ao to *** complete potential energycurves are calculated at numbers of basis *** the ab initio calculated points are fitted to the analytic MurrellSorbie function and then employed to compute the spectroscopic *** comparison,the spectroscopic constantsreproduced by the potential attained at D95(3.f,3.d) are found to be very close to the experiments,a^d the values (T_e,D_e,R_e,ω_e,ω_eχ_e,α_e and B_e) are of 1.73.0}93.eV,1.161 3. eV,0.3.3.2. nm,2.1.95 cm^(-1),1.62. cm^(-1),0.005 3. cm^(-1),and0.490 cm^(-1),*** the potential obtained at D95(3.f,3.d),the totally 75 vibrational states are found whenJ=*** vibrational levels,the classical turning points and the inertial rotation constants of the first 68 vibrationalstates are calculated for the first time and compared with the available *** agreement is *** centrifugal distortion constants of the first 3.0}vibrational states are also reported for the first *** reasonabledissociation limit for ~7Li_2.A^1∑_u^+) is deduced using the calculated results at present.

关键词： analytic potential energy function harmonic frequency dissociation energy vibrational level classical turning point

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太赫兹电磁场照射下量子线中的纳米电子力

物理学报 2003年第8期52卷 2037-2040页

作者：杨谋周光辉肖贤波湖南师范大学物理系长沙410081

研究两端连接电子库的量子线在太赫兹 (THz)电磁场横向辐射下的电子力学问题 .在自由电子近似下求得了弹道区二能级电子波函数解析表达式 ,发现电子概率在两个能态间随线轴坐标作Rabi振荡 ,其幅度与外场强度和频率有关 .利用热力学统计... 详细信息

研究两端连接电子库的量子线在太赫兹 (THz)电磁场横向辐射下的电子力学问题 .在自由电子近似下求得了弹道区二能级电子波函数解析表达式 ,发现电子概率在两个能态间随线轴坐标作Rabi振荡 ,其幅度与外场强度和频率有关 .利用热力学统计算符方法并利用波函数计算出了传导电子对量子线中张力贡献的大小 .其计算结果可表示成与外场无关和与外场有关的两部分之和 ,前者与已有的实验观测和理论计算结果一致 ,而与外场参量有关的部分可用量子相干理论解释 .

关键词：太赫兹电磁场照射量子线纳米电子力电子力学二能级电子波函数热力学统计算符方法

Nuclear Effect on Gluon Distribution Function and Associate Production of J/Ψ and y with Large P_T in High Energy p-Fe Collision

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Chinese journal of nuclear physics 1995年第3期17卷 205-208页

作者： Zhang Shu~2.He Zhe-min~(1,2. Peng Hong-an~(1,3. Duan Chun-gui~2. CCAST(World Laboratory)P.O.Box 873.,Biejing 1000802.physics department,Hebei {2. University,Shijiazhuang,0500163.physics department,Peking University,Beijing 100871 Hebei normal Univ Shijiazhuang China

With three theoretical models of nuclear effects on gluon distribution functions,the differentialcross sections and the total cross sections for associate production of J/ψ and γ with large P_T in high energyp-Fe co... 详细信息

关键词： Gluon distribution function Nuclear effect J/Ψ production