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6 종류의 생식세포와 육종성 변화를 보인 혼합 생식세포종 1 예
방금화(Chin Hua Fang),박성민(Sung Min Park),송경은(Kyung Eun Song),송은섭(Eun Seop Song),임영구(Young Koo Lim),황성욱(Seong Ook Hwang),고승권(Seung Kwon Koh),조숙(Sook Cho),이우영(Woo Young Lee) 대한산부인과학회 1999 Obstetrics & Gynecology Science Vol.42 No.1
Malignant germ cell tumors of the ovary are uncommon neoplasms. Although 20-25% of all ovarian tumors are derived from germ cells, only about 3% of germ cell tumors are malignant. Mixed germ cell tumors contain at least two malignant germ cell elements. These lesions should be managed with combination chemotherapy, preferably BEP. Recently we experienced a case of mixed germ cell tumor with 6 components of germ cell and sarcomatous change in a 11 year old girl. Preoperative CA-125, B-hCG, aFP, LDH, a-1-antitrypsin were elevated and the final pathologic report was mixed germ cell tumor composed of endodermal sinus tumor, embryonal carcinoma, mature and immature teratoma, choriocarcinoma, dysgerminoma and sarcomatous change, Postoperative chemotherapy with 6 courses of BEP regimen was performed and all tumor markers became normal after 4 courses of chemotherapy. What we interested in this case was several components of germ cells and sarcomatous change and the sarcomatous change might be derived from the mature cystic teratoma component, so we present this case with a brief review of the literatures here.
( Man Chin Hua ),( Hsun Chin Chao ),( Tsung Chieh Yao ),( Ming Wei Lai ),( Jing Long Huang ),( The Patch Study Group ) 대한소화기학회 2013 Gut and Liver Vol.7 No.4
Background/Aims: The aim of this study was to investigate whether genetic variations at positions -1082, -819, and 592 in the interleukin (IL)-10 promoter affect IL-10 production in children with irritable bowel syndrome (IBS). Methods: Ninety-four children with IBS and 102 children as healthy controls (HCs) were enrolled. Genomic DNA was extracted, and IL-10 -1082, -819, and -592 polymorphisms were detected by direct sequencing from all participants. Peripheral blood mononuclear cells (PBMCs) from 46 IBS children and 38 HCs were isolated and cultured with and without 5 ng/mL Escherichia coli lipopolysaccharide (LPS). IL-10 levels in the culture supernatants were measured by enzyme-linked immunosorbent assay. Results: There were no significant differences in the distribution of IL-10 -1082, -819, and -592 polymorphisms or in the allele and haplotype frequencies between IBS children and HCs. PBMCs from children with IBS had significantly lower IL-10 levels after LPS stimulation than PBMCs from HCs (p=0.011); however, LPS-induced IL-10 levels in PBMCs with different genotypes of -819 and 592 polymorphisms were not significantly different between IBS patients and HCs. Conclusions: Although significantly lower LPS-induced IL-10 production by PBMCs was noted, it is unlikely that IL-10 production was fully genetically determined in our IBS children. ClinicalTrials.gov identifier: NCT01131442. (Gut Liver 2013; 7:430-436)
Aina Shasha Hashimi,Riski Titian Ginting,Siew Xian Chin,Kam Sheng Lau,Muhammad Amirul Nazhif Mohd Nohan,Sarani Zakaria,Chi Chin Yap,Chin Hua Chia 한국물리학회 2020 Current Applied Physics Vol.20 No.1
We report the microwave synthesis of copper nanowires (CuNWs) by using alkylamine-mediated approach. The aspect ratio of CuNWs of this study was two–fold compared to the previous microwave-assisted synthesis study. In addition, we showed that microwave synthesis could produce high aspect ratio CuNWs in a much shorter time compared to conventional method. Purification process of CuNWs was done via a simple and fast centrifugation method using water-hydrophobic organic solvent system. We also show the importance of purification process on the performance of the fabricated transparent conductive electrode (TCE) films. Purified CuNWs TCE showed a low sheet resistance of 35 Ω/sq with high transparency of 81% (at λ550 nm). Furthermore, we demonstrated how the retreatment of acetic acid was able to assist CuNWs to regain its high conductivity even after five cycles of repetitive continuous oxidation process.
Adaptive data hiding scheme based on magic matrix of flexible dimension
( Hua Wu ),( Ji-hwei Horng ),( Chin-chen Chang ) 한국인터넷정보학회 2021 KSII Transactions on Internet and Information Syst Vol.15 No.9
Magic matrix-based data hiding schemes are applied to transmit secret information through open communication channels safely. With the development of various magic matrices, some higher dimensional magic matrices are proposed for improving the security level. However, with the limitation of computing resource and the requirement of real time processing, these higher dimensional magic matrix-based methods are not advantageous. Hence, a kind of data hiding scheme based on a single or a group of multi-dimensional flexible magic matrices is proposed in this paper, whose magic matrix can be expanded to higher dimensional ones with less computing resource. Furthermore, an adaptive mechanism is proposed to reduce the embedding distortion. Adapting to the secret data, the magic matrix with least distortion is chosen to embed the data and a marker bit is exploited to record the choice. Experimental results confirm that the proposed scheme hides data with high security and a better visual quality.
Clinical and Urodynamic Predictors of the Q-Tip Test in Women With Lower Urinary Tract Symptoms
Chin-Jui Wu,Wan-Hua Ting,Ho-Hsiung Lin,Sheng-Mou Hsiao 대한배뇨장애요실금학회 2020 International Neurourology Journal Vol.24 No.1
Purpose: The Q-tip test is used to measure urethral hypermobility and can predict surgical outcomes. However, certain factors may affect the reliability of this test. Our aim was to identify independent clinical and urodynamic predictors of the results of the Q-tip test. Methods: Between January 2014 and June 2019, 176 consecutive women with lower urinary tract symptoms who underwent the Q-tip test and urodynamic studies were included in this retrospective study. Results: Multivariable regression analysis revealed that age (regression coefficient, -0.55), point Ba (regression coefficient, 4.1), urodynamic stress incontinence (regression coefficient, 9.9), maximum flow rate (Qmax) (regression coefficient, 0.13), pressure transmission ratio (PTR) at maximum urethral pressure (MUP) (regression coefficient, -0.14), and the score on the fifth question of the Incontinence Impact Questionnaire (IIQQ5; “Has urine leakage affected your participation in social activities outside your home?”; regression coefficient, -4.1) were independent predictors of the Q-tip angle, with a constant of 87.0. The following Spearman rank correlation coefficients were found between the Q-tip angle and the following variables: age, -0.38; point Ba, 0.34; urodynamic stress incontinence, 0.32; Qmax, 0.28; PTR at MUP, -0.28; and IIQQ5, -0.23. A receiver operating characteristic curve (ROC) analysis for the prediction of urodynamic stress incontinence found that the optimum cutoff for PTR at MUP was <81%, with an area under the ROC curve of 0.70. Conclusions: Age, point Ba, urodynamic stress incontinence, Qmax, PTR at MUP, and IIQQ5 were independent predictors of the Q-tip angle. However, none of these could be used as effective surrogates for the Q-tip test due to their lack of a sufficient correlation.
Chin-Chia Liang,Ming-Yung Chen,Cheng-Hua Yang 연세대학교 동서문제연구원 2015 Global economic review Vol.44 No.3
Using a data-set from the ASEAN-5 countries over the January 2000–August 2013 period, this paper revisits the Granger causal nexus between the equity and foreign exchange markets by employing the bootstrap panel Granger causality approach developed by Kònya, which allows for both cross-sectional dependency and heterogeneity across countries. The results indicate a unidirectional causality from stock prices to exchange rates in Malaysia, the Philippines and Thailand and from exchange rates to stock prices in Indonesia. These findings have important implications for policy-makers and institutional investors who should rigidly monitor the dynamic linkages between stock price and exchange rate movements across the ASEAN-5 financial markets when making policy decisions and investing in these countries.
THE EFFECT OF RESTAURANT INNOVATIVENESS ON CUSTOMER ADVOCACY
Chang-Hua Yen,Hui-Hsuan Yen,Shu-Chin Wu,Ko-Yu Chang 글로벌지식마케팅경영학회 2023 Global Marketing Conference Vol.2023 No.07
This study supplements the literature by determining how restaurant innovativeness is linked to customer advocacy as well as considering self-image congruity as mediator of this relationship. A questionnaire survey of 385 restaurant customers was conducted in Taiwan. The results indicated that restaurant innovativeness is positively related to customers’ self-image congruity and customer advocacy. Customers’ self-image congruity is positively associated with customer advocacy. In addition, self-image congruity mediates the relationship between restaurant innovativeness and customer advocacy. The research contributes to literature by extend the relationships between restaurant innovativeness, self-image congruity, and customer advocacy. Restaurant managers should adopt approaches (e.g. innovativeness-related activities) for enhancing self-image congruity in customers.