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Hu, Zhi-Bin,Luo, He-An,Wang, Xiao-Guang,Huang, Ming-Zhi,Huang, Lu,Pang, Huai-Lin,Mao, Chun-Hui,Pei, Hui,Huang, Chao-Qun,Sun, Jiong,Liu, Ping-Le,Liu, Ai-Ping Korean Chemical Society 2014 Bulletin of the Korean Chemical Society Vol.35 No.4
In attempt to lead compounds exhibiting both insecticidal and fungicidal activities, a series of O-benzyl oximeether derivatives were designed and synthesized by introducing ${\beta}$-methoxyacrylate pharmacophore into a scaffold. The insecticidal activity against Aphis fabae and the fungicidal activity against Erysiphe graminis were screened. The title compounds exhibited remarkable insecticidal and fungicidal activities. The most potent compound 6d was identified. Its insecticidal $LC_{50}$ against A. fabae is 6.4 mg/L, which is lower than that of chlorfenapyr (19.4 mg/L) and even close to the level of imidacloprid (4.8 mg/L). Its fungicidal $EC_{90}$ in preventive and curative treatment against E. graminis are 2.2 and 4.8 mg/L, respectively, which are lower than azoxystrobin (7.0 and 5.9 mg/L). These results indicate that compound 6d can be considered as a lead for further developing new O-benzyl oxime-ether typed candidates with both fungicidal and insecticidal activities.
Hui-Chao Hu,Xin-Sheng Chai,Ying-Xin Tian,Wei-Feng Si,Gang Chen 한국공업화학회 2013 Journal of Industrial and Engineering Chemistry Vol.19 No.3
This paper reports on a headspace gas chromatographic method (HS-GC) for the determination of residual formaldehyde in formaldehyde related polymer latexes. The method is based on the reaction between formaldehyde and borohydride in a sodium hydroxide solution (1 mol/L), in which formaldehyde is quantitatively converted to methanol within 30 min at 90 8C and then determined by HS-GC. The results showed that the repeatability of the method had a relative standard deviation of less than 5.0%; the limit of quantification (LOQ) was 17.3 mg, and the recovery ranged from 96.2–102%. The present method is simple, rapid, and accurate.
Hui Jie Hu,Zhen Wei Zhang,Yu Liang,Yan Yan Luo,Qi Feng Dou,Cui Ping Song,Hui Min Zhang,Ying Zhao,Guang Run Tian,Ke Zhang,Qiu Fang Mao,Jing Gui Song,Soren Rittig,Jian Guo Wen 대한배뇨장애요실금학회 2021 International Neurourology Journal Vol.25 No.1
Purpose: This study aimed to investigate the prevalence, risk factors, and effects of primary nocturnal enuresis (PNE) on physical and mental health in young adults in mainland China. Methods: An anonymous questionnaire was used to collect information including the sociodemographic characteristics, history of PNE, family history, daytime voiding symptoms, Pittsburgh Sleep Quality Index (PSQI) scores, Self-Esteem Scale (SES), and Self-Rating Depression Scale (SDS). A total of 22,500 university students from 23 provinces and 368 cities in mainland China were included. Results: In total, 21,082 questionnaires were collected, and 20,345 of them qualified for statistical analysis. The PNE prevalence was 1.17%, and the distribution of monosymptomatic nocturnal enuresis (MNE) and nonmonosymptomatic nocturnal enuresis (NMNE) was 66.1% and 33.9%, respectively. In total, 28% of respondents with PNE reported bedwetting daily, 31.6% between 1 and 7 times weekly, and 40.4% between 1 and 4 times monthly; 80% of PNE cases had no history of treatment. The prevalence of PNE in patients with a family history, frequency, urgency, urinary incontinence, and recurrent urinary tract infections was significantly higher than in those without these conditions (P<0.001). PNE was significantly correlated with the PSQI total score (sleep quality) (P=0.011). The SES score was lower and the SDS was higher (P<0.001) in the PNE group than in those without PNE. Conclusions: In mainland China, the PNE prevalence among young adults was found to be high, and PNE had significant effects on physical and mental health. Risk factors included a family history, daytime voiding symptoms, and lack of treatment.
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).
Hui-Chao Hu,Hui-Jun Jin,Xin-Sheng Chai 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.1
This paper reports an improved headspace gas chromatographic (HS-GC) technique for thedetermination of oxalate content in bleaching effluents. The method is based on the redox reactionbetween potassium iodate and oxalate, from which the carbon dioxide is generated and measured by HSGC. The results showed that the reaction in a sulfuric acid solution (0.05 mol/L) was complete in 35 minat 95 ℃. The RSD of the method in the repeatability testing was less than 4.5%, the LOQ was 0.35 mg, andthe recovery ranged from 95 to 103%. The present method is simpler, more reliable, and more practicalcompared to the methods reported previously.
( Hui Jing ),( You Jin Dai ),( Yuan Yuan Bian ),( Hui Li ),( Xiao Jin Cui ),( Xiao Jie Yu ),( Song You ),( Feng Qing Hu ) 한국미생물 · 생명공학회 2012 Journal of microbiology and biotechnology Vol.22 No.7
Based on their respective antitumor and thrombolytic activities, the superantigen staphylococcal enterotoxin C2 (SEC2) and staphylokinase (Sak) were chosen for the construction of the novel chimeric proteins Sak-linker- SEC2 and SEC2-linker-Sak using a linker composed of nine Ala residues. Both chimeric proteins possessed nearly the same PBMC proliferation stimulating activity and antitumor activity as SEC2 and thrombolytic activity as Sak. Neither the SEC2 or Sak component of each chimeric protein affected the activity of the other component. The results presented in this study provide a possible strategy to prevent and cure tumor thrombus.
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.