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Search Results: 1 - 10 of 18726 matches for " Aihong Gao "
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{μ-[2-(Dimethylamino)phenyl](2-fluorophenyl)methanolato}pentamethyldialuminum(III)
Aihong Gao,Qing Su,Ying Mu
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809012252
Abstract: Each of the Al atoms in the title compound, [Al2(CH3)5(C15H15FNO)], is four-coordinated in a distorted tetrahedral geometry. The dimethylaluminium centre is bound by the N and the O atoms of the (2-dimethylaminophenyl)(2-fluorophenyl)methanolate ligand. The second Al atom is bound by the methanolate O atom and by three methyl C atoms. The crystal studied was a racemic twin with a 0.4 (2):0.6 (2) domain ratio.
Hepatitis B virus inhibition in mice by lentiviral vector mediated short hairpin RNA
Lei Deng, Guoqiang Li, Lisen Xi, Aihong Yin, Yun Gao, Wei You, Xuehao Wang, Beicheng Sun
BMC Gastroenterology , 2009, DOI: 10.1186/1471-230x-9-73
Abstract: Hepatitis B surface antigen (HBsAg) and hepatitis B e antigen (HBeAg) in the sera of the mice were analyzed by quantitative sandwich enzyme linked immunosorbent assay (ELISA) technique, hepatitis B core antigen (HBcAg) and HBsAg in the livers of the mice were detected by immunohistochemical assay, HBV DNA and HBV mRNA were measured by fluorogenic quantitative polymerase chain reaction (FQ-PCR) and quantitative real-time PCR respectively.Co-injection of HBV plasmids together with the lentivirus targeting HBV shRNA induced an RNAi response. Secreted HBsAg was reduced by 89% in mouse serum, and HBeAg was also significantly inhibited, immunohistochemical detection of HBcAg or HBsAg in the liver tissues also revealed substantial reduction. Lentiviral mediated shRNA caused a significant suppression in the levels of viral mRNA and DNA synthesis compared to the control group.Lentivirus-based RNAi can be used to suppress HBV replication in vivo, it might become a potential therapeutic strategy for treating HBV and other viral infections.Hepatitis B virus (HBV) infection is still a worldwide health problem. There are an estimated 400 million chronic HBV infected patients worldwide, especially in China, where the infection rate is even as high as 9.8% and over one million people die of liver failure or HBV-associated liver cirrhosis and hepatocellular carcinoma (HCC) annually[1]. Attempts at treatment of chronic infections have had only limited success. Because of the low efficacy or side effects of current drugs and the occurrence of drug resistant HBV mutations, only about 20% of the patients benefit from combination therapy with interferon-α and nucleoside analogues such as lamivudine, entecavir and adefovir dipivoxil [2-6]. Therefore, there is an urgent need to develop a new therapeutic strategy that effectively inhibits HBV replication.The HBV virion comprises an envelope and a nucleocapsid containing a circular, partially double-stranded 3.2-kb DNA, which replicates via
Viscosity Approximation Methods for Equilibrium Problems, Variational Inequality Problems of Infinitely Strict Pseudocontractions in Hilbert Spaces
Aihong Wang
Journal of Applied Mathematics , 2012, DOI: 10.1155/2012/150145
Abstract: We introduce an iterative scheme by the viscosity approximation method for finding a common element of the set of the solutions of the equilibrium problem and the set of fixed points of infinitely strict pseudocontractive mappings. Strong convergence theorems are established in Hilbert spaces. Our results improve and extend the corresponding results announced by many others recently.
Women Characters in Katherine Mansfield’s Short Stories
Aihong REN
Studies in Literature and Language , 2012, DOI: 10.3968/j.sll.1923156320120503.1678
Abstract: This paper aims to discuss Katherine Mansfield’s women characters. As a woman writer, Mansfield is very much concerned with the position of women in society. Stories of women take up most of her compositions, in which she captures various women’s plight and pain. Her women characters can be neatly divided into three categories: victims in the family, invisible women at workplace, doll and rebel. Poor or rich, single or married, Mansfield’s women characters are all victims of their society. A discussion of Mansfield’s stories about women can enrich understanding not only of the complicated conditions of women in western society at her time, but also of her contributions to modern literature, especially to the female culture. Key words: Katherine Mansfield; Women characters; Victims
Footprints of the (Nearly) Perfect Liquid
Aihong Tang
Physics , 2009, DOI: 10.1016/j.nuclphysa.2009.10.061
Abstract: In relativistic heavy-ion collisions, the system has gone through a series of evolution, almost at every stage of its evolution it leaves behind footprints in flow observable. Those footprints contain valuable information of the bulk property of the (nearly) perfect liquid. By examing footprints of the nearly perfect liquid, we address a few important issues, including the ideal hydrodynamic limit, estimation of $\eta/s$, testing the Number of Constituent Quark scaling at low energy, in small system, at large transverse momentum, and in forward region. Future prospect of flow study is discussed.
Directed Flow of Identified Particles in Au + Au Collisions at $\sqrtsNN = 200$ GeV
Aihong Tang
Physics , 2010, DOI: 10.1088/1742-6596/230/1/012018
Abstract: STAR's measurements of directed flow ($v_1$) for pions, kaons (charged and $K_s^0$), protons and antiprotons for Au + Au collisions at $\sqrtsNN = 200$ GeV are presented. Negative $v_1(y)$ slope is observed for pions, antiprotons, protons and kaons. The proton $v_1(y)$ slope at midrapidity is found extremely small. Sizable difference is seen between $v_1$ of protons and anti-protons in 5-30% central collisions. Anti-flow can explain the negative slope, however, it has difficulties explaining the centrality dependence of the difference between the $v_1(y)$ slopes of protons and anti-protons. The $v_1$ excitation function is presented. Comparisons to model calculations (RQMD, uRQMD, AMPT and QGSM) are made, and it is found that none of the four models can successfully describe the data.
Elliptic Flow From Au+Au Collisions at 200 GeV
Aihong Tang
Physics , 2003, DOI: 10.1063/1.1664332
Abstract: This paper presents results of elliptic flow measurements at moderate high transverse momentum in Au+Au collisions using the STAR detector at RHIC. Sizable $v_{2}$ is found up to 7 GeV/c in transverse momentum. Non-flow effects are discussed comparing correlations in p+p collisions and Au+Au collisions. $v_{2}$ from two-, four- and six-particle cumulant are shown and discussed.
Collective Dynamics at RHIC
Aihong Tang
Physics , 2007, DOI: 10.1088/0954-3899/34/8/S13
Abstract: The property of the ``perfect liquid'' created at RHIC is probed with anisotropic flow measurements. Different initial conditions and their consequences on flow measurements are discussed. The collectivity is shown to be achieved fast and early. The thermalization is investigated with the ratio of $v_4/v_2^2$. Measurements from three sectors of soft physics (HBT, flow and strangeness) are shown to have a simple, linear, length scaling. Directed flow is found to be independent of system size.
Flow Results and Hints of Incomplete Thermalization
Aihong Tang
Physics , 2008,
Abstract: We classified $v_2$ measurements according to their sensitivities w.r.t. to two planes, namely, reaction plane and participant plane. Likewise, in $v_2/\epsilon$ scaling, we showed that one needs to choose a $\epsilon$ that is sensitive to the same plane as that $v_2$ is sensitive to. We presented our $v_2/\epsilon$ as a function of centrality and transverse momentum. We studied the ratio of $v_4/v_2^2$. We discussed the applicable range for hydrodynamics, as well as implications to an incomplete thermalization.
Directed and Elliptic Flow at RHIC
Aihong Tang
Physics , 2004, DOI: 10.1088/0954-3899/31/4/005
Abstract: We present the directed flow measurement ($v_1$) from Au+Au collisions at $\sqrtsNN = 62$ GeV. Over the pseudorapidity range we have studied, which covers $\eta$ from -1.2 to 1.2 and $2.4 < |\eta| < 4$, the magnitude of $v_1$ for charged particles is found to increase monotonously with pseudorapidity for all centralities. No ``$v_1$ wiggle'', as predicted by various theoretical models, is observed at midrapidity. Elliptic flow ($v_2$) from moderate high $p_t$ particles ($3-6 GeV/c$) at $\sqrtsNN = 200$ GeV is presented as a function of impact parameter. It is found that models that are based on {\it jet quenching} alone appear to underpredict $v_2$ at moderate high $p_t$, while the model that incorporates both, recombination and fragmentation, describes the data better.
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