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Hui Ni,Yuan Fan Yang,Feng Chen,Hai Feng Ji,Hu Yang,Wu Ling,Hui Nong Cai 한국식품과학회 2014 Food Science and Biotechnology Vol.23 No.3
Pectinase and naringinase were investigated forimproving the production of pummelo juice by increasingthe juice yield and eliminating juice bitterness. Comparedto a control, the enzymatic treatment significantly (p<0.05)increased the juice yield, soluble pectin and total solublesolid (TSS) contents, and the clarity, while decreasing theconcentrations of the bitter chemicals naringin, limonin,and nomilin. A combined processing treatment of peelingand enzymatic hydrolyses using 5U/g of pectinase and 0.4 U/gof naringinase at 50oC for 60 min resulted in a juice yieldof 42.3%, a TSS content of 11.4oBx, a titrable acidity (TA)of 0.96%, a vitamin C concentration of 38.4 mg/100 mL,and concentrations of naringin, limonin, and nomilin of42.4 μg/mL, 33.5 μg/mL, and 13.3 μg/mL, respectively. The enzymatic method was effective and practical forproduction of high quantity pummelo juice.
Foreign Currency Derivative and Firm Value: An Australian Study
Hui Hu,Felix Lim Kay Wee 사람과세계경영학회 2010 Global Business and Finance Review Vol.15 No.1
In Australian context, only a single study done by Nguyen and Faff (2007) has addressed the question of whether the use of derivatives directly affects firm value. They found that the use of derivatives in general, and the use of interest rate derivatives in particular, are negatively related to firm value. However, using a sample of firms from 1999 and 2000, Nguyen and Faff (2007) may pick up noise from an event in March 1999, which saw the disclosure of derivative information become compulsory for the first time in Australia. Owing to the confounding nature of their results, this paper examines the use of foreign currency derivatives in a sample of 106 Australian nonfinancial firms between 2003 and 2008 and its potential impact on firm value. An insignificant relation between firm value (represented by Tobin’s Q) and using foreign currency derivatives is found. The findings of this study contradict the study done by Nguyen and Faff (2007).
Proper Fhl1 expression as Wnt signaling is required for chondrogenesis of ATDC5 cells
Hu-Hui Lee,Jing-Yu Lee,Lan-Hsin Shih 한국통합생물학회 2013 Animal cells and systems Vol.17 No.6
Wnt signaling is well known playing dual roles during chondrogenesis. The overexpression of Fhl1 (Four-and-a-half LIM domain 1) induces myotube formation as a downstream event of Wnt signaling. Because Fhl1 is widely expressed in other mesenchyme-derived tissues, including chondrocytes, we investigated the role of Fhl1 in chondrogenesis and its relationship with Wnt signaling. We found that the expression of Fhl1 can be enhanced by β-catenin and LiCl (Lithium chloride) in chondrogenic ATDC5 cells. Overexpression of Fhl1 as well as canonical Wnt signaling inhibits chondrogenesis of ATDC5 cells. Moreover, shRNA-mediated knockdown of Fhl1 expression also inhibited ATDC5 cell differentiation, and this result is resembled to the mutant phenotype caused by deletion of β-catenin as was described previously. Because the endogenous Fhl1 expression remains constant during the middle and late phases of chondrogenesis, we propose that proper Fhl1 expression is necessary for the chondrogenic differentiation of ATDC5 cells and altered Fhl1 expression serves as an aberrant Wnt signal that impedes chondrogenesis.
Embryoid bodies formation from chicken primordial germ cells
Hui Xiong,Yabin Pu,Qingyun Hu,Zhiqiang Shan,Pengfei Hu,Weijun Guan,Yuehui Ma 한국통합생물학회 2015 Animal cells and systems Vol.19 No.3
Primordial germ cells (PGCs) were demonstrated to be multipotential because of their differentiation ability in all embryonic lineages and because the pluripotential nature of PGCs caters for recent researches on stem cells. PGCs were cultured in suspension to form embryoid bodies (EBs). The characterization of PGCs and EBs was assessed by immunofluorescence technique, reverse transcription-polymerase chain reaction (RT-PCR) and paraffin section for Haematoxylin and Eosin (HE) stain. We established a stable chicken PGC line in vitro and prepared masses of EBs from PGCs. We also demonstrated that PGCs expressed stage-specific and stem cell-specific surface makers: SSEA-1, SSEA-3, Oct4, and Sox2. EBs expressed specific genes from three germ layers: gene AFP from entoderm, gene GATA6 from mesoderm, and gene Sox3 from ectoderm. The HE staining illustrated that EBs developed different cell types; relatively larger EBs (440 μm in diameter) were obtained, which contract rhythmically. We concluded that chicken PGCs were suitable for the formation of EBs. Abundant larger size EBs could be prepared in an effective way with our protocol, which could construct a good animal model and provide a useful clinical platform in studying human embryonic development and cell transplantation field.
Hu, Zheng-Hui,Lin, Yi-Wei,Xu, Xin,Chen, Hong,Mao, Ye-Qing,Wu, Jian,Xu, Xiang-Lai,Zhu, Yi,Li, Shi-Qi,Zheng, Xiang-Yi,Xie, Li-Ping Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.3
Objective: To evaluate the association between tea consumption and the risk of renal cell carcinoma. Methods: We searched PubMed, Web of Science and Scopus between 1970 and November 2012. Two evaluators independently reviewed and selected articles based on predetermined selection criteria. Results: Twelve epidemiological studies (ten case-control studies and two cohort studies) were included in the final analysis. In a meta-analysis of all included studies, when compared with the lowest level of tea consumption, the overall relative risk (RR) of renal cell carcinoma for the highest level of tea consumption was 1.03 (95% confidence interval [CI] 0.89-1.21). In subgroup meta-analyses by study design, there was no significant association between tea consumption and renal cell carcinoma risk in ten case-control studies using adjusted data (RR=1.08, 95% CI 0.84-1.40). Furthermore, there was no significant association in two cohort studies using adjusted data (RR=0.95, 95% CI 0.81-1.12). Conclusion: Our findings do not support the conclusion that tea consumption is related to decreased risk of renal cell carcinoma. Further prospective cohort studies are required.
Superplastic Deformation Behavior and Hot-Processing Map of the TiNp/2014 Al Composite
Hui-E Hu,Xin-yun Wang 대한금속·재료학회 2016 METALS AND MATERIALS International Vol.22 No.1
The superplastic deformation behavior and hot-processing map of the TiNp/2014 Al composite were investigated based on tensile tests conducted at various temperatures (773 K, 798 K, and 818 K) with various strain rates (0.033, 0.167, 0.33, and 0.67 s−1). The results revealed that the influence of strain on the energy dissipation map is negligible. The optimal superplastic deformation parameters corresponding to the peak power dissipation efficiency of 0.65 differ from those corresponding to the maximum elongation of 351%. For the superplastic deformation of TiNp/2014 composite, the deformation activation energy is much higher than that for the lattice self-diffusion in pure aluminum, which can be explained by the combination of mechanisms including grain (subgrain) boundary sliding accommodation, interface sliding accommodation, liquid-phase helper accommodation and load transfer. To avoid voids and wedge cracks, two obvious instability domains in the hot-processing maps should be avoided. The hot-processing maps obtained can approximately, but not accurately enough, optimize superplastic deformation parameters of the TiNp/2014 Al composite.