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- 저자 : Wenjing Xie (검색결과 4 건)
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Political Ties and Firm Performance in China: Evidence from a Quantile Regression
Wenjing Xie,Keji Liu,Fei Xie,Haoyuan Ding 동아시아연구원 2017 Journal of East Asian Studies Vol.17 No.3
Whether political ties enhance or weaken firm performance has been widely investigated in a number of studies, including some on China. Based on a database of non-financial A-share listed firms from 2004 to 2012, we study the effects of political ties on firm performance within a quantile regression framework. We find that there is a positive relationship between political ties and economic performance, but that it is diminishing with respect to firm performance. Political ties appear particularly important for weaker firms.
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WENJING YUAN,LING ZHU,PING CHEN,ANJIAN XIE,HUI ZHANG,CUIPING WANG,YUHUA SHEN 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2013 NANO Vol.8 No.4
The Fe3O4@C core/shell microspheres were fabricated via a two-step process. Fe3O4 microspheres were firstly prepared, and Fe3O4@C core/shell microspheres were subsequently fabricated using glucose as a carbon source by a hydrothermal route, in which the thickness of the carbon coating was about 20 nm. The resulting products were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD) and Fourier transform infrared spectra (FTIR). The Nitrogen adsorption–desorption isotherms reveal their mesoporous structure and larger BET surface area (62.3 m2g-1). The Fe3O4@C core/shell microspheres possess ferromagnetism and high saturation magnetization (39.2 emu ⋅ g-1). Bovine hemoglobin (BHb) was used as a model protein to test the adsorption and desorption properties of the Fe3O4@C core/shell microspheres. The capacity for BHb adsorption was more than 71.3 mg/g. According to the values obtained in the MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide) assay the Fe3O4@C core/shell microspheres show a low toxicity. Therefore, the prepared Fe3O4@C core/shell microspheres are of great significance for guided site-specific drug delivery.
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Pei Shengxiang,Niu Siwen,Xie Fuquan,Wang Wenjing,Zhang Shuang,Zhang Gaiyun 한국미생물학회 2021 The journal of microbiology Vol.59 No.10
During a study of the marine actinobacterial biodiversity, a large number of Brevibacterium strains were isolated. Of these, five that have relatively low 16S rRNA gene similarity (98.5– 99.3%) with validly published Brevibacterium species, were chosen to determine taxonomic positions. On the basis of 16S rRNA gene sequence analysis and BOX-PCR fingerprinting, strains o2T, YB235T, and WO024T were selected as representative strains. Genomic analyses, including average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH), clearly differentiated the three strains from each other and from their closest relatives, with values ranging from 82.8% to 91.5% for ANI and from 26.7% to 46.5% for dDDH that below the threshold for species delineation. Strains YB235T, WO024T, and o2T all exhibited strong and efficient decolorization activity in congo red (CR) dyes, moderate decolorization activity in toluidine blue (TB) dyes and poor decolorization in reactive blue (RB) dyes. Genes coding for peroxidases and laccases were identified and accounted for these strains’ ability to effectively oxidize a variety of dyes with different chemical structures. Mining of the whole genome for secondary metabolite biosynthesis gene clusters revealed the presence of gene clusters encoding for bacteriocin, ectoine, NRPS, siderophore, T3PKS, terpene, and thiopeptide. Based on the phylogenetic, genotypic and phenotypic data, strains o2T, YB235T and WO024T clearly represent three novel taxa within the genus Brevibacterium, for which the names Brevibacterium limosum sp. nov. (type strain o2T = JCM 33844T = MCCC 1A09961T), Brevibacterium pigmenatum sp. nov. (type strain YB235T = JCM 33843T = MCCC 1A09842T) and Brevibacterium atlanticum sp. nov. (type strain WO024T = JCM 33846T = MCCC 1A16743T) are proposed.
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( Wan-long Chuang ),( Yan Luo ),( Jeong Heo ),( Gui-qing Wang ),( Ming-lung Yu ),( Yoon Jun Kim ),( Qing Xie ),( Cheng-yuan Peng ),( Mingxiang Zhang ),( Yan Huang ),( Wenjing Lu ),( Linda M. Fredrick 대한간학회 2017 춘·추계 학술대회 (KASL) Vol.2017 No.1
Aims: Hepatoprotective medications (HPMs) are commonly used in patients with chronic liver disease, especially across Asia. The phase 3 ONYX-I and ONYX-II studies evaluated the safety and efficacy of the 3-DAA regimen of ombitasvir and paritaprevir/ritonavir (OBV/PTV/r) plus dasabuvir (DSV) ± ribavirin (RBV) in an exclusively HCV GT1b-infected Asian population. This post-hoc analysis evaluated the impact of HPM use in patients treated with OBV/PTV/r + DSV ± RBV in these studies. Methods: ONYX-I and ONYX-II enrolled patients in China, South Korea and Taiwan. SVR12, treatment-emergent adverse events (AEs), and alanine transaminase (ALT) normalization, as well as mean changes in ALT over time were assessed in patients using vs not using HPMs. HPM use defined as all medications administered during any treatment period. Results: Overall, 11% (36/325) of non-cirrhotic and 57% (59/104) of cirrhotic patients were receiving HPMs, with ursodeoxycholic acid being the most commonly used in both non-cirrhotic (5.2% [17/325]) and cirrhotic (14.4% [15/104]) patients. SVR12 rates were high (99.7- 100%) in both non-cirrhotic and cirrhotic patients irrespective of HPM use. The regimen was generally well tolerated, with low rates of SAEs and AEs leading to treatment discontinuation (Table). Of patients with ALT above normal at baseline (BL), 100% vs 95% of non-cirrhotic and 98% vs 89% of cirrhotic patients using or not using HPMs, respectively, had normal ALT values at end of treatment (EOT). Mean ALT levels during treatment declined rapidly and similarly with and without HPM use; mean changes from BL to EOT were -38.8 and -37.0 U/L, respectively, in non-cirrhotic and -54.2 and -66.6 U/L, respectively, in cirrhotic patients. Conclusions: OBV/PTV/r + DSV ± RBV achieved high SVR12 and was generally well tolerated regardless of HPM use. HPM use had no impact on the safety profile of OBV/PTV/r + DSV therapy in Asian HCV infected subjects.
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