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      • Factors affecting smile esthetics in adults with different types of anterior overjet malocclusion

        Hsin-Chung Cheng,Pei-Chin Cheng 대한치과교정학회 2017 대한치과교정학회지 Vol.47 No.1

        Objective: This study aimed to quantitatively assess the relationship of smile esthetic variables with various types of malocclusion, and identify the cephalometric factors affecting smile measurements. Methods: This retrospective study included 106 patients who were treated with retention at the orthodontic department of Taipei Medical University Hospital. Hard-tissue variables were measured using lateral cephalographic tracings, and nine smile esthetic variables were measured using facial photographs. The patients were divided into three groups according to their overjet (< 0, 0–4, and > 4 mm). An analysis of variance was conducted to compare the pretreatment cephalometric variables and smile esthetic variables among the three groups. Multiple linear regression analysis was performed to identify the cephalometric factors affecting the smile measurements in each group. Results: Except the upper midline and buccal corridor ratio, all of the smile measurements differed significantly among the three groups before orthodontic treatment. Some of the smile characteristics were correlated with the cephalometric measurements in different types of malocclusion. The overjet was the major factor influencing the smile pattern in all three types of malocclusion. Conclusions: Smile characteristics differ between different types of malocclusion; the smile may be influenced by skeletal pattern, dental procumbency, or facial type. These findings indicate that establishment of an optimal horizontal anterior teeth relationship is the key to improving the smile characteristics in different types of malocclusion.

      • KCI등재

        Synthesis and characterization of nickel–manganese oxide via the hydrothermal route for electrochemical capacitors

        Chung-Hsien Wu,Jeng-Shin Ma,Chung-Hsin Lu 한국물리학회 2012 Current Applied Physics Vol.12 No.4

        Nano-sized and well dispersed manganese oxide and nickelemanganese oxide (NieMneO) powders are synthesized via the hydrothermal route. The addition of nickel ions significantly affects the morphology,particle size and the electrochemical properties of the obtained powders. Adding nickel ions results in a significant change in the shape of the powders from rod-like to plate-like. The electrochemical analysis of the electrode reveals that the specific capacitance of the synthesized powders is greatly increased with the addition of nickel ions. When the hydrothermal temperature is increased to 125 ℃, the specific capacitance also increases to 284 F/g and decreases by about 4% after 1500 cycles of charge and recharge. NieMneO is considered to be a promising material for the electrodes used in electrochemical capacitors. Nano-sized and well dispersed manganese oxide and nickelemanganese oxide (NieMneO) powders are synthesized via the hydrothermal route. The addition of nickel ions significantly affects the morphology,particle size and the electrochemical properties of the obtained powders. Adding nickel ions results in a significant change in the shape of the powders from rod-like to plate-like. The electrochemical analysis of the electrode reveals that the specific capacitance of the synthesized powders is greatly increased with the addition of nickel ions. When the hydrothermal temperature is increased to 125 ℃, the specific capacitance also increases to 284 F/g and decreases by about 4% after 1500 cycles of charge and recharge. NieMneO is considered to be a promising material for the electrodes used in electrochemical capacitors.

      • KCI등재

        Effects of reducing agents on the electrochemical properties of the prepared manganese oxide powders

        Chung-Hsien Wu,Jeng-Shin Ma,Chung-Hsin Lu 한국물리학회 2012 Current Applied Physics Vol.12 No.4

        Manganese oxide powders with high specific capacitance were successfully fabricated via a simple redox reaction at room temperature. The reducing agents used for the redox reaction significantly affected the oxidation states and the electrochemical properties of the prepared manganese oxide powders. As C2H5OH was used as the reducing agent, high Mn3+ content and high amount of hydroxide were observed in the prepared manganese oxide powders. In addition, the molar ratios of KMnO4 and C2H5OH also influenced the electrochemical properties of the prepared manganese oxide powders. When the molar ratio of KMnO4 and C2H5OH was 1:40, the specific capacitance of the prepared manganese oxide was as high as 402 F/g. These results of the electrochemical analysis showed that, adjusting the molar ratios of KMnO4 and C2H5OH demonstrated to be an effective method for controlling the electrochemical characteristics of manganese oxide powders.

      • KCI등재

        Effects of nitrogen and carbon doping on properties and photocatalytic activity of TiO2-In2O3 composite

        Chung-Hsin Wu,Chao-Yin Kuo,Jui-Tai Wu,Pui-Kwan Andy Hong,Chih-Hao Lai,Wei-Yang Chung 한국화학공학회 2015 Korean Journal of Chemical Engineering Vol.32 No.5

        TiO2-In2O3 (Ti-In) was synthesized by the sol-gel method and the composite was further doped with nitrogen and carbon to create Ti-In-N and Ti-In-C, respectively. The dye C.I. Reactive Red 2 (RR2) was used a model compound to be subjected to various composites and measured for removal by photocatalytic degradation and adsorption. Ti-In-N possessed a larger mean diameter than Ti-In-C, while the latter possessed a greater anatase content and surface area than the former. After N or C doping, the spectra of corresponding Ti-In-N and Ti-In-C showed absorption edges at longer wavelengths than the parent Ti-In. Ti-N-O and Ti-O-C bonds were found in Ti-In-N and Ti-In-C composites, respectively. Ti-In-N was more effective for RR2 photodegradation than Ti-In-C, and the Ti-In-C removed more RR2 by adsorption than Ti-In-N.

      • KCI등재

        The assessment of host and bacterial proteins in sputum from active pulmonary tuberculosis

        Hsin-Chih Lai,Yu-Tze Horng,Pen-Fang Yeh,Jann-Yuan Wang,Chin-Chung Shu,Chia-Chen Lu,Jang-Jih Lu,Jen-Jyh Lee,Po-Chi Soo 한국미생물학회 2016 The journal of microbiology Vol.54 No.11

        Pulmonary tuberculosis (TB) is caused by Mycobacterium tuberculosis. The protein composition of sputum may reflect the immune status of the lung. This study aimed to evaluate the protein profiles in spontaneous sputum samples from patients with active pulmonary TB. Sputum samples were collected from patients with pulmonary TB and healthy controls. Western blotting was used to analyze the amount of interleukin 10 (IL-10), interferon-gamma (IFN-γ), IL-25, IL- 17, perforin-1, urease, albumin, transferrin, lactoferrin, adenosine deaminase (also known as adenosine aminohydrolase, or ADA), ADA-2, granzyme B, granulysin, and caspase- 1 in sputum. Results of detection of IL-10, IFN-γ, perforin- 1, urease, ADA2, and caspase-1, showed relatively high specificity in distinguishing patients with TB from healthy controls, although sensitivities varied from 13.3% to 66.1%. By defining a positive result as the detection of any two proteins in sputum samples, combined use of transferrin and urease as markers increased sensitivity to 73.2% and specificity to 71.1%. Furthermore, we observed that the concentration of transferrin was proportional to the number of acidfast bacilli detected in sputum specimens. Detection of sputum transferrin and urease was highly associated with pulmonary TB infection. In addition, a high concentration of transferrin detected in sputum might correlate with active TB infection. This data on sputum proteins in patients with TB may aid in the development of biomarkers to assess the severity of pulmonary TB.

      • KCI등재

        Effectiveness of N-acetylcysteine in Treating Clinical Symptoms of Substance Abuse and Dependence: A Meta-analysis of Randomized Controlled Trials

        Chung-Ting Chang,Pei-Ju Hsieh,Hsin-Chien Lee,Chun-Hong Lo,Ka-Wai Tam,El-Wui Loh 대한정신약물학회 2021 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.19 No.2

        Objective: Treatment with N-acetylcysteine (NAC) is believed to reduce the clinical symptoms among individuals with substance abuse or dependence. We conducted a meta-analysis of randomized controlled trials to evaluate the effective-ness of NAC in treating substance abuse and dependence. Methods: PubMed, EMBASE, ClinicalTrials.gov registry, and the Cochrane Library were searched for trials published before June 2020. Results: A total of 16 trials were analyzed. The treatment effectiveness domains assessed in this study were craving and depressive symptoms, withdrawal syndrome, adverse events, and smoking frequency. Standardized mean difference (SMD), weighted mean difference (WMD), and odds ratio (OR) were used for evaluation where appropriate. A significant decrease in craving symptoms was observed in the NAC treatment group compared with the control group (SMD, −0.67; 95% confidence interval [CI], −1.21 to 0.21). When withdrawal and depressive symptoms were considered as a single domain, the NAC treatment group demonstrated a significantly higher overall improvement than the control group (SMD, −0.35; 95% CI, −0.64 to −0.06). No between-group differences in term of the OR of adverse events (OR, 1.18; 95% CI, 0.68 to 2.06) and a non-significant trend toward reduction in smoking frequency was observed in the NAC treatment group compared with the control group (WMD, −3.09; 95% CI, −6.50 to 0.32). Conclusion: NAC provides certain noticeable benefits in attenuating substance craving and might help alleviate depres-sive symptoms and withdrawal syndrome. Precautious measures should be considered when using NAC although no difference in adverse effects was found between NAC treatment and control group.

      • A System Dynamics Study of Enterprise Value $Creation{\sim}$ the Example of Taiwan's SMEs

        Chung, Yi-Chan,Tsai, Chih-Hung,Tien, Shiaw-Wen,Lin, Yu-Hsin,Lin, Ja-Lin The Korean Society for Quality Management 2006 The Asian Journal on Quality Vol.7 No.1

        With the globalization of economy, industries are facing increasingly greater challenges. Business integration, both internally and externally, is undoubtedly an important topic. However, how does an enterprise create its own value will be the key to an enterprise's success in the future. Therefore, this study bases on the evaluation of company value to assess the key factors and competitive strategies of an enterprise. Yet, only with stable enterprise performance can the company value be correctly evaluated. This will be an important issue for enterprise performance and business strategy. Subject of this study are mainly small and medium-sized (enterprises (SMEs). Model construction for SME value assessment is established through the system dynamics approach. Scholars' opinions on literature validation and application of Delphi Method are explored through literature review on local and foreign studies, in order to compile the relevant perspectives and indices for enterprise value creation. Hence model construction of the value creation system is established, and the correlation between the perspectives and related factors is explored to understand the overall dynamics model of SMEs' value creation system. Consequently, a research method based on the system dynamics perspective is provided for the study of enterprise value creation is provided, as policy reference for improvement of decision-making and value creation.

      • KCI등재

        Association of Interleukin-10 A-592C Polymorphism in Taiwanese Children with Kawasaki Disease

        Kai-Chung Hsueh,Ying-Ju Lin,Jeng-Sheng Chang,Lei Wan,Yu-Hsin Tsai,Chang-Hai Tsai,Chih-Ping Chen,Fuu-Jen Tsai 대한의학회 2009 Journal of Korean medical science Vol.24 No.3

        Elevated serum levels of interleukin-10 (IL-10) have been reported in patients with Kawasaki disease (KD). IL-10 reduces the inflammatory actions of macrophages and T cells and it may play a significant role in the regulation of inflammatory vascular damage associated with systemic vasculitis. The aim of this study was to examine whether -592 IL-10 promoter polymorphism is a susceptibility or severity marker of KD in Chinese patients in Taiwan. The study included 105 KD patients and 100 normal controls. Genotype and allelic frequencies for the IL-10 gene polymorphism in both groups were compared. There were no significant between-group differences in the genotype distribution of IL-10 A-592C gene polymorphism (P=0.08). However, the frequency of the -592*A allele was significantly increased in the patients with KD compared with controls (71.9% vs. 61.0%, P=0.019). The odds ratio for developing KD in individuals with IL-10 -592*A allele was 1.64 (95% confidence interval, 1.06-2.52) compared to individuals with the IL-10-592*C allele. No significant difference was observed in the genotype and allelic frequencies for the IL-10 A-592C polymorphism between patients with and without coronary artery lesions. The IL-10-592*A allele may be involved in the development of KD in Taiwanese children.

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