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RISS 인기검색어
- 검색키워드
- 저자 : Ming-Ching Ou (검색결과 5 건)
- 무료
- 기관 내 무료
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Adjusting Recreation Specialization Investments to Develop a Tourism Destination
Shih-Ming Ou,Ching Chang,Zong-Wei Zhu 세계문화관광학회 2010 Conference Proceedings Vol.11 No.0
This paper explores the question of how recreation specialization affects the development of a tourism destination over time. We formulate the development process as an optimal control problem by adjusting specialization investments for the purpose of either attracting more tourists or discouraging tourists from visiting. Our research suggests investment strategies for two types of tourism destination consistent with the intensity of correlation between recreational activities and degree of specialization. Our data show that when the influx of tourists exceeds the carrying capacity of a destination, tourism companies will reduce investment to avoid congestion. Otherwise, companies will increase expenditures to maximize profits.
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Yi-Sheng Liu,Ming-Ching Ou,Yi-Shan Tsai,Xi-Zhang Lin,Chien-Kuo Wang,Hong-Ming Tsai,Ming-Tsung Chuang 대한영상의학회 2015 Korean Journal of Radiology Vol.16 No.1
To retrospectively compare treatment of hepatocellular carcinoma (HCC) with transarterial chemoembolization (TACE) using gelatin sponges or microspheres plus lipiodol-doxorubicin vs. doxorubicin-loaded drug-eluting beads (DEB). A total of 158 patients with HCC received TACE from November 2010 to November 2011 were enrolled in this study, including 64 (40.5%) received TACE with lipiodol-doxorubicin and gelatin sponges (group A), 41 (25.9%) received TACE with lipiodol-doxorubicin and microspheres (group B), and 53 (33.5%) received TACE with doxorubicin-loaded DEB (group C). Tumor response and adverse events (AEs) were evaluated. No significant difference was found at baseline among the three groups. The doxorubicin dosage in group C wassignificantly (p < 0.001) higher compared to the dose used in groups A or B (median, 50 mg vs. 31 mg or 25 mg). Significantly (p < 0.001) more patients in group C achieved complete response compared to those in groups A or B (32.1% vs. 6.3% or 2.4%). Significantly (p < 0.001) less patients in group C had progressive disease compared to those in groups A or B (34.0% vs. 57.8% or 68.3%). Minor AEs were more common in groups A and B compared to group C, with rates of 54.7%, 34.1%, and 5.7%, respectively. In patients with HCC, TACE with DEB offers better safety and efficacy profiles compared to either TACE with gelatin sponges or TACE with microspheres.
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Chyong-Huey Lai,Elizabeth Vallikad,Hao Lin,Lan-Yan Yang,Shih-Ming Jung,Hsueh-Erh Liu,Yu-Che Ou,Hung-Hsueh Chou,Cheng-Tao Lin,Huei-Jean Huang,Kuan-Gen Huang,Jiantai Qiu,Yao-Ching Hung,Tzu-I Wu,Wei-Yang 대한부인종양학회 2020 Journal of Gynecologic Oncology Vol.31 No.1
Objectives: An Asian Gynecologic Oncology Group phase III randomized trial was conducted to determine whether maintenance chemotherapy could improve progression-free survival (PFS) in stages III/IV ovarian cancer. Methods: Between 2007 and 2014, 45 newly-diagnosed ovarian cancer patients were enrolled after complete remission and randomized (1:1) to arm A (4-weekly carboplatin area under the curve 4 and pegylated liposomal doxorubicin [PLD] 30 mg/m2, n=24) for 6 cycles or arm B (observation, n=21). The primary end-point was PFS. A post hoc translational study was conducted to deep sequence BRCA/homologous recombination deficiency (HRD) genes, because BRCA/HRD mutations (BRCA/HRDm) are known to be associated with better prognosis. Results: Enrollment was slow, accrual was closed when 7+ years had passed. With a median follow-up of 88.9 months, the median PFS was significantly better in arm A (55.5 months) than arm B (9.2 months) (hazard ratio [HR]=0.40; 95% confidence interval [CI]=0.19–0.87; p=0.020), yet the median overall survival was not significantly different in arm A (not reached) than arm B (95.1 months) (p=0.148). Overall grade 3/4 adverse events were more frequent in arm A than arm B (60.9% vs 0.0%) (p<0.001). Quality of life was generally not significantly different. Distribution of BRCA1/2m or BRCA/HRDm was not significantly biased between the two arms. Wild-type BRCA/non-HRD subgroup seemed to fare better with maintenance therapy (HR=0.35; 95% CI=0.11–1.18; p=0.091). Conclusions: Despite limitations in small sample size, it suggests that maintenance carboplatin-PLD chemotherapy could improve PFS in advanced ovarian cancer.
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Shao-Hua Lee,Chia-Ying Lin,Ya-Chun Hsu,Yi-Sheng Liu,Ming-Tsung Chuang,Ming-Ching Ou 대한암학회 2020 Cancer Research and Treatment Vol.52 No.1
Purpose Transarterial chemoembolization (TACE) delivers cytotoxic drugs intra-arterially and induces ischemic necrosis by arterial embolization. Embolization is achieved using a variety of agents that differ widely in particle size and range, deformation, and in vivo arterial distribution. The clinical significance of these differences has not been thoroughly characterized. The present study is to compare the efficacy of Embosphere and Embozene microspheres in TACE therapy for hepatocellular carcinoma. Materials and Methods This retrospective study includes 108 hepatocellular carcinoma (HCC) patients who received TACE/doxorubicin with Embozene (70 patients) or Embosphere (38 patients) at a single medical center. Patient outcomes, including liver function, tumor size, tumor response, and complications after treatment, were analyzed. The change in total target lesion size and tumor response was evaluated according to embolization agent and clinical characteristics. Results The postoperative glutamate oxaloacetate transaminase (mean, 194.5 vs. 147.5; p=0.032) and bilirubin (mean, 1.11 mg/dL vs. 0.73 mg/dL; p=0.016) were higher among patients treated with Embozene, the decrease in the number (55.86±25.55% vs. 41.81±38.51%, p=0.027) and size (56.37±25.91 mm vs. 43.44±37.89 mm, p=0.001) of liver tumors relative to baseline was greater in these patients than in those treated with Embosphere. These greater antitumor effects were achieved using lower doses of doxorubicin than for treatment with Embozene. Minor complications were more common among patients treated with Embosphere than with Embozene. Conclusion These results suggest that Embozene is more efficacious than Embosphere for HCC treatment using TACE/doxorubicin.
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The effect of bending loads on the dynamic behaviors of a rolling guide
James Shih-Shyn Wu,Jyh-Cheng Chan,Gent-An Tsai,Ching-Yuan Lin,Feng-Ming Ou 대한기계학회 2012 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.26 No.3
Dynamic behaviors of ball-type contact surfaces under unbalanced bending loads are studied using point-to-point analysis, threedimensional finite element simulation based on the Hertz Contact Theory, and a modal test. Results derived from these models are very similar but the Finite Element Model provides the best results since it allows for more elements of study, such as the steel ball, carriage,rail etc. In the study, results also show that frequencies vary slightly, but there is an obvious change in shapes. Therefore, the contact stiffness in simulations must be properly selected with the conclusion that different external loadings may affect the dynamic characteristics of such structures significantly.
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