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Masato Yoshihara,Hiroaki Kajiyama,Satoshi Tamauchi,Shiro Suzuki,Kunihiko Takahashi,Shigeyuki Matsui,Fumitaka Kikkawa 대한부인종양학회 2019 Journal of Gynecologic Oncology Vol.30 No.6
Objective: The aim of this study was to investigate the clinical characteristics of youngpatients with stage I clear-cell carcinoma (CCC) and evaluate the prognostic factors andeffects of fertility-sparing surgery (FSS) using propensity score (PS) adjustment. Methods: We conducted a regional multi-institutional study between 1986 and 2017. Among4,277 patients with ovarian tumor, clinical and pathological data of 103 fertile women withstage I unilateral CCC were collected. We evaluated survival and reproductive outcomesin these patients. Additionally, to analyze the effects of FSS, baseline imbalance betweenpatients with and those without FSS was adjusted with an inverse probability of treatmentweighting using PSs involving independent clinical variables. Results: The mean patient age was 39.4 years, and the median follow-up period for survivingpatients was 55.6 months. In multivariate analysis, stage IC2/IC3 (vs. IA/IC1) was the onlyindependent prognostic factor for recurrence-free survival (RFS) and overall survival (OS). FSS was not associated with poorer prognosis when compared to the prognosis with nonpreservingsurgery with regard to both RFS and OS. No statistical difference in survivaloutcomes between FSS and other approaches was confirmed after PS adjustment. Amongpatients who underwent FSS, four deliveries with healthy neonates were noted without anygestational complications. Conclusion: FSS can be considered in stage I CCC, specifically in stage IA and IC1 patientswho strongly desire to have children in the future. Further clinical research is needed toclarify the optimal application of FSS for CCC.
China's "Soft" Naval Power in the Indian Ocean
Toshi Yoshihara 인하대학교 국제관계연구소 2010 Pacific Focus Vol.25 No.1
For the past several years, Beijing has been attempting to “shape” the diplomatic and strategic environment in maritime Asia, projecting an image of itself as an innately trustworthy great power. As a part of this public relations campaign, Chinese leaders have retailed the story of Zheng He, the Ming Dynasty eunuch admiral who voyaged to destinations throughout the South China Sea and the Indian Ocean six centuries ago. They have touted the feats of Zheng He, who sojourned in maritime Asia without attempting military conquest, as a metaphor for China’s current peaceful ascent in the maritime domain. In doing so, Beijing hopes to convince key audiences in Southeast Asia and South Asia that it remains pacific in outlook - and thus can be counted on not to abuse the sea power it is amassing. An attractive vision of China, they hope, will avert the tendency of regional states to band together to balance Chinese power. Until now, Chinese diplomats have had the luxury to tell their story how they wanted, since deployments of China’s naval forces beyond East Asia remained abstract. Beijing neither saw the need nor boasted the capacity to maintain strong forces far from Chinese shores. However, the headline-grabbing dispatch of two destroyers and a combat logistics ship to the Gulf of Aden on counterpiracy duty in late 2008 has put China squarely in the spotlight. By depicting itself as an inherently defensive power, China has set a high standard for its behavior at sea. Fellow Asian powers will hold Beijing to this lofty benchmark - measuring its actions against the storyline Chinese leaders have developed around Zheng He’s voyages. Beijing’s antipiracy mission thus offers an ideal opportunity to test empirically the efficacy of Chinese soft power at sea. To this end, this paper explores the motives behind the Zheng He narrative and assesses the key messages that Chinese leaders are attempting to convey to Asian capitals. This study then examines the extent to which China’s unprecedented naval presence in the Indian Ocean has dovetailed with the Zheng He storyline and with the larger strategy of easing regional misgivings about Chinese maritime power. Finally, the paper analyzes how India, a target audience, is responding to China’s narrative, drawing several preliminary conclusions about the effectiveness and the prospects of Chinese soft power in the Indian Ocean.
Flow-based Service Discipline for TCP Streaming in Advanced IP Router
Naotoshi Yoshihara,Hideki Tode,Koso Murakami 한국멀티미디어학회 2009 한국멀티미디어학회 국제학술대회 Vol.2009 No.-
Video-sharing applications using TCP (called "TCP streaming") like YouTube have been increased recently. However, it is difficult for the existing IP network to guarantee QoS of TCP streaming. So far, to achieve the QoS enhancement per flow, we have proposed the class-based output buffer control mechanism in QoS-aware router. In this paper, to guarantee more sophisticated QoS for TCP streaming, we propose the mechanism which calculates transmission bandwidth and buffer volume preferentially available (called "basic volume") according to active flows' condition estimated by measuring transmitted packets per flow. Furthermore, by computer simulation, the effectiveness of our proposal is verified.