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Search Results: 1 - 10 of 80937 matches for " Jinfang Liu "
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The Collusion Deterrence with Prisoner’s Dilemma  [PDF]
Aidong Liu, Jinfang Liu
Journal of Service Science and Management (JSSM) , 2010, DOI: 10.4236/jssm.2010.34053
Abstract: I tried to present a new method to prevent collusion through employing two auditors at the same time and inspiring them provide true report by exploiting their prisoner’s dilemma. But I found this method cannot be put into practice because of the high cost. So I analyzed whether sending the second auditor in a probability, a low cost method, can deter the audit collusion. I find sending the second auditor in a probability, enforcing the rigidly lawful punishment and perfecting the reward mechanism can prevent audit collusion. I also find the auditor’s ethical constraint do good to prevent collusion and the charger of state assets management can play the same role as the real owner of the state-owned enterprise in deterring collusion. This finding provides theory support for the government to implement the publicly audit bidding and random double auditing system on state-owned enterprise. The supervision of PCAOB on auditors is also the operation of this theory.
Pituitary tumor transforming gene-1 haplotypes and risk of pituitary adenoma: a case-control study
Shuai Chen, Lan Xiao, Zhixiong Liu, Jinfang Liu, Yunsheng Liu
BMC Medical Genetics , 2011, DOI: 10.1186/1471-2350-12-44
Abstract: We genotyped five PTTG1 haplotype-tagging SNPs (htSNP) by PCR-RFLP assays in a case-control study, which included 280 Han Chinese patients diagnosed with pituitary adenoma and 280 age-, gender- and geographically matched Han Chinese controls. Haplotypes were reconstructed according to the genotyping data and linkage disequilibrium status of the htSNPs.No significant differences in allele and genotype frequencies of the htSNPs were observed between pituitary adenoma patients and controls, indicating that none of the individual PTTG1 SNPs examined in this study is associated with the risk of pituitary adenoma. In addition, no significant association was detected between the reconstructed PTTG1 haplotypes and pituitary adenoma cases or the controls.Though no significant association was found between PTTG1 haplotypes and the risk of pituitary adenoma, this is the first report on the association of individual PTTG1 SNPs or PTTG1 haplotypes with the risk of pituitary adenoma based on a solid study; it will provide an important reference for future studies on the association between genetic alterations in PTTG1 and the risk of pituitary adenoma or other tumors.Pituitary tumors are commonly encountered benign monoclonal adenomas that arise from cells of the anterior pituitary gland, accounting for approximately 15% of all diagnosed intracranial tumors [1]. These monoclonal tumors arise from highly differentiated cells expressing hormone gene products, including growth hormone, prolactin, adrenocorticotrophic hormone, thyroid-stimulating hormone, follicle-stimulating hormone and luteinizing hormone. Pituitary adenomas may be functional and actively secrete hormones, leading to characteristic clinical features such as acromegaly, Cushing's disease and hyperprolactinaemia. Commonly, they are non-functional, leading primarily to hypogonadism and compressive pituitary failure [1]. Previous longitudinal incidence surveys reported that the prevalence of pituitary adenoma had been
On Low-Carbon Technology  [PDF]
Jinfang Lv, Shusheng Qin
Low Carbon Economy (LCE) , 2016, DOI: 10.4236/lce.2016.73010
Abstract: Low-carbon technology generalizes all the means and methods for low-carbon or carbon-free. It suits the need of adapting to a low-carbon economy, reducing greenhouse gas emissions and preventing global warming. Low-carbon technology mainly includes carbon reduction technology, carbon-free technology, carbon removal technology, carbon management technology, resource saving and recycling technology. Low-carbon technology aims at carbon reduction. It’s harmonious, sustainable, efficient and international. On one hand, low-carbon technology is the key of developing low-carbon economy. On the other hand, it’s a significant means of relieving climate warming, energy crisis and sustainable development. A series of policies, laws, systems are the necessary safeguards for low-carbon technology development.
Study on the interaction between Jak3 and IL-2R γ using the yeast two-hybrid system
Jinfang Zhu,Wei Tang,Hongbin Ji,Zhongcheng Zheng,Xinyuan Liu
Chinese Science Bulletin , 1999, DOI: 10.1007/BF03183485
Abstract: Both interleukin-2 (IL-2) receptor y subunit and non-receptor tyrosine kinase Jak3 play important roles in IL-2 physiological functions. Jak3 has been known to bind IL-2Ry and the interaction is very important for IL-2 signaling. In order to find the domains directly involved in the interaction between IL-2Ry and Jak3, various deletion mutants have been constructed and their interaction has been studied using the yeast two-hybrid system. Results show that the JH3–JH7 region of Jak3 N-terminal can bind to intracellular domain of IL-2Ry directly and the intact structure of JH3–JH7 region is necessary for this combination. In addition, the region from 305 to 317 amino acid residues near the C-terminal of IL-2Rγ plays a critical role in this interaction.
The Acute Liver Injury in Mice Caused by Nano-Anatase TiO2
Ma Linglan,Zhao Jinfang,Wang Jue,Liu Jie
Nanoscale Research Letters , 2009,
Abstract: Although it is known that nano-TiO2or other nanoparticles can induce liver toxicities, the mechanisms and the molecular pathogenesis are still unclear. In this study, nano-anatase TiO2(5 nm) was injected into the abdominal cavity of ICR mice for consecutive 14 days, and the inflammatory responses of liver of mice was investigated. The results showed the obvious titanium accumulation in liver DNA, histopathological changes and hepatocytes apoptosis of mice liver, and the liver function damaged by higher doses nano-anatase TiO2. The real-time quantitative RT-PCR and ELISA analyses showed that nano-anatase TiO2can significantly alter the mRNA and protein expressions of several inflammatory cytokines, including nucleic factor-κB, macrophage migration inhibitory factor, tumor necrosis factor-α, interleukin-6, interleukin-1β, cross-reaction protein, interleukin-4, and interleukin-10. Our results also implied that the inflammatory responses and liver injury may be involved in nano-anatase TiO2-induced liver toxicity.
catena-Poly[[bis(dimethylformamide-κO)cadmium(II)]-di-μ2-dicyanamido-κ4N1:N5]
Jinfang Zhang
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809046364
Abstract: In the title compound, [Cd(C2N3)2(C3H7NO)2], the Cd2+ ion lies on an inversion center and adopts an octahedral coordination geometry, in which four N atoms from four different dicyanamide ligands lie in the equatorial plane and two dimethylformamide O atoms occupy the axial positions. The Cd atoms are connected by two dicyanamide ligands, resulting in a neutral chain propagating parallel to [010].
catena-Poly[[tetrakis(hexamethylphosphoramide-κO)bis(nitrato-κ2O,O′)dysprosium(III)] [molybdenum(VI)-di-μ-sulfido-silver(I)-di-μ-sulfido]]
Jinfang Zhang
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810042728
Abstract: Hexamethylphosphoramide (hmp), tetrathiomolybdate, silver sulfide and dysprosium nitrate were self-assembled to form an anionic [AgMoS4]nn chain in the title complex, {[Dy(NO3)2(C6H18N3OP)4][AgMoS4]}n. The central Dy atom in the cation is coordinated by eight O atoms from two nitrate and four hmp ligands, resulting in a distorted square-antiprismatic environment. Together with the two nitrate ligands, the cation is monovalent, which leads to the anionic chain having an [AgMoS4] repeat unit. The polymeric anionic chain, with Mo—Ag—Mo and Ag—Mo—Ag angles of 161.911 (13) and 154.014 (13)°, respectively, presents a distorted linear configuration. The title complex is isostructural with the W analogue.
catena-Poly[[[(triphenylphosphane)copper(I)]-di-μ-iodido-[(triphenylphosphane)copper(I)]-μ-[3,6-bis(4-pyridyl)-1,2,4,5-tetrazine]] acetonitrile disolvate]
Jinfang Zhang
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810042807
Abstract: The title compound, {[Cu2I2(C12H8N6)(C18H15P)2]·2CH3CN}n, contains centrosymmetric dinuclear Cu2I2(PPh3)2 units bridged by 3,6-bis(4-pyridyl)-1,2,4,5-tetrazine ligands lying also across crystallographic inversion centers, giving a chain structure in the ab plane. The distorted tetrahedral CuI atoms in the dinuclear unit are coordinated by two bridging iodide anions, one pyridine N atom from the substituted tetrazine ligand and one terminal triphenylphosphine P-atom donor. The Cu...Cu distance is 2.8293 (12) , implying a weak Cu...Cu interaction.
catena-Poly[[bis[(dicyanamido)silver(I)](Ag—Ag)]-μ2-4,4′-bipyridine-κ2N:N′]
Jinfang Zhang
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809050491
Abstract: In the title compound, [Ag2(C2N3)2(C10H8N2)]n, the Ag atoms, lying on inversion centers, are separated by 3.3226 (12) . Each Ag atom is connected by one bridging 4,4′-bipyridine [Ag—N = 2.177 (4) ] and a terminal dicyanamide [Ag—N = 2.108 (4) ]. The Ag—Ag interactions play a key role in constructing a unique neutral polymeric chain.
Hexakis(dimethyl sulfoxide-κO)calcium μ6-oxido-dodecakis-μ2-oxido-hexaoxidohexatungstate(VI)
Jinfang Zhang
Acta Crystallographica Section E , 2012, DOI: 10.1107/s1600536812018338
Abstract: In the title compound, [Ca(C2H6OS)6][W6O19], the cation and anion both have a crystallographically imposed centre of symmetry. The CaII atom in the cation is coordinated by six O atoms from six dimethyl sulfoxide ligands in a distorted octahedral geometry. The [W6O19]2 isopolyanion possesses the well-known Lindqvist structure in which each WVI atom is coordinated by four μ2-O, one terminal O and one μ6-O atom.
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