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The 8th Biennial Meeting of the Asian Society of Gynecologic Oncology, December 1st to 3rd, 2023
Heng-Cheng Hsu,김재원,박정열,서동훈,김세익,Jen-Ruei Chen,Peng-Hui Wang 대한부인종양학회 2024 Journal of Gynecologic Oncology Vol.35 No.2
As per the 2018 GLOBOCAN database, Asia accounted for 48.7% (637,761) of new gynecologiccancer cases and 50.1% (305,000) of gynecologic cancer deaths [1]. Recognizing the distinctdifferences in genetic background, cancer epidemiology, disease characteristics, and socio-cultural environment between Asian and non-Asian women, it is noteworthy that much ofthe experimental evidence guiding clinical gynecologic oncology practices has historicallybeen drawn from studies in Western populations. Established in 2008, the Asian Society ofGynecologic Oncology (ASGO) ser ves as a key organization in Asia, dedicated to advancingthe study, prevention, and treatment of gynecological cancer through scientific exchange,regional/international collaboration, educational initiatives, and fostering camaraderieamong its members [2]. Presently, ASGO boasts members from over 10 countries in Asia. Building on the success of the previous meetings held in Tokyo (2009) [3], Seoul (2011)[4], Kyoto (2013) [5], Seoul (2015) [6], Tokyo (2017) [7], Incheon (2019) [8], and Bangkok(2021) [9], the eighth Biennial Meeting of ASGO took place at the state-of-the-art HNBKInternational Convention Center in Taipei, Taiwan, from December 01 to 03, 2023. Theoverarching theme for this event was “Reunion to Overcome Gynecologic Cancer in Asia.”Notably, due to the impact of the coronavirus disease 2019 pandemic in 2021, the meetingwas transformed into a hybrid format. This gathering marked a significant milestone as thefirst in-person Pan-Asia meeting focused on gynecological cancer following the pandemic. Additionally, it is worth highlighting that this was the inaugural ASGO meeting held outsideof Korea and Japan, underscoring the broadening geographical scope and global impactof the conference. Professor Peng-Hui Wang and Jae-Weon Jim chaired the organizingcommittee. ASGO 2023 witnessed the participation of 633 attendees from 17 countries,featuring 152 honored speakers and chairs from 12 countries. The event included 44 oral/surgical video presentations and 187 poster presentations, covering a diverse range ofscientific topics, from fundamental principles of gynecological cancer care to advanced, high-technology practices rooted in cutting-edge research (Table 1). Photos from the meetingare accessible on the official meeting website (http://tinyurl.com/26xtts2f ).
Li, Da-Peng,Du, Chen,Zhang, Zuo-Ming,Li, Guang-Xiao,Yu, Zhi-Fu,Wang, Xin,Li, Peng-Fei,Cheng, Cheng,Liu, Yu-Peng,Zhao, Ya-Shuang Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.12
The present systematic review and meta-analysis was conducted to assess any association between breastfeeding and the risk of ovarian cancer. A systematic search of published studies was performed in PUBMED and EMBASE and by reviewing reference lists from retrieved articles through March 2013. Data extraction was conducted independently by two authors. Pooled relative risk ratios were calculated using random-effect models. Totals of 5 cohort studies and 35 case-control studies including 17,139 women with ovarian cancer showed a 30% reduced risk of ovarian cancer when comparing the women who had breastfed with those who had never breastfed (pooled RR = 0.70, 95% CI: 0.64-0.76; p = 0.00), with significant heterogeneity in the studies (p = 0.00; I2 = 76.29%). A significant decreasd in risk of epithelial ovarian cancer was also observed (pooled RR = 0.68, 95% CI: 0.61-0.76). When the participants were restricted to only parous women, there was a slightly attenuated but still significant risk reduction of ovarian cancer (pooled RR = 0.76, 95% CI: 0.69-0.83). For total breastfeeding duration, the pooled RRs in the < 6 months, 6-12 months and > 12 months of breastfeeding subgroups were 0.85 (95% CI: 0.77-0.93), 0.73 (95% CI: 0.65-0.82) and 0.64 (95%CI: 0.56-0.73), respectively. Meta-regression of total breastfeeding duration indicated an increasing linear trend of risk reduction of ovarian cancer with the increasing total breastfeeding duration (p = 0.00). Breastfeeding was inversely associated with the risk of ovarian cancer, especially long-term breastfeeding duration that demonstrated a stronger protective effect.
Efficient Scheme for Secret Hiding in QR Code by Improving Exploiting Modification Direction
( Peng-cheng Huang ),( Yung-hui Li ),( Chin-chen Chang ),( Yanjun Liu ) 한국인터넷정보학회 2018 KSII Transactions on Internet and Information Syst Vol.12 No.5
QR codes as public patent are widely used to acquire the information in various fields. However, it faces security problem when delivering the privacy message by QR code. To overcome this weakness, we propose a secret hiding scheme by improving exploiting modification direction to protect the private message in QR code. The secret messages will be converted into octal digit stream and concealed to the cover QR code by overwriting the cover QR code public message bits. And the private messages can be faithfully decoded using the extraction function. In our secret hiding scheme, the QR code public message still can be fully decoded publicly from the marked QR codes via any standard QR Code reader, which helps to reduce attackers’ curiosity. Experiments show that the proposed scheme is feasible, with high secret payload, high security protection level, and resistant to common image post-processing attacks.
Cheng Jiaxing,Sheng Dongfa,Shi Peng-peng 대한기계학회 2017 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.31 No.5
As an important supplement and development to crystallography, the applications about quasicrystal materials have played a core role in many fields, such as manufacturing and the space industry. Due to the sensitivity of quasicrystals to defects, the research on the fracture problem of quasicrystals has attracted a great deal of attention. We present a boundary collocation method to research fracture problems for a finite dimension rectangular one-dimensional hexagonal quasicrystal plate. Because mode I and mode II problems for onedimensional hexagonal quasicrystals are like that for the classical elastic materials, only the anti-plane problem is discussed in this paper. The correctness of the present numerical method is verified through a comparison of the present results and the existing results. And then, the size effects on stress field, stress intensity factor and energy release rate are discussed in detail. The obtained results can provide valuable references for the fracture behavior of quasicrystals.
Effect of different thawing methods on the quality of mackerel (Pneumatophorus japonicus)
Peng-cheng Zhou,Jing Xie 한국식품과학회 2021 Food Science and Biotechnology Vol.30 No.9
Five thawing methods such as flow waterthawing, ultrasonic flowing water thawing, air thawing,microwave thawing and low temperature thawing wereused, and the physical, chemical properties and structure ofmackerels after thawing were assessed. The results showedthat the low temperature thawing had the best waterretention, lower protein and fat oxidation. The microwavethawing had the shortest thawing time, but uneven heatingleads to partial maturation. Air thawing prolonged exposureto air leads to high levels of protein and fat oxidation. The flow water thawing had better water retention than thatof the ultrasonic flowing water thawing, only the thawingtime was slightly longer than that of the ultrasonic flowingwater thawing. In general, the low temperature thawingperformed well after thawing. The flow water thawing usedonly 1/43 of the low temperature thawing’s elapsed timeafter sacrificing some acceptable qualities. Thus, flowwater thawing is more suitable for thawing frozenmackerel.
Peng, Cheng,Mansour, Alaa M.,Wu, Chunfa,Zuccolo, Ricardo,Ji, Chunqun,Greiner, Bill,Sung, Hong Gun Techno-Press 2018 Ocean systems engineering Vol.8 No.4
Floating Production Storage and Offloading (FPSO) units have the advantages of their ability to provide storage and offloading capabilities which are not available in other types of floating production systems. In addition, FPSOs also provide a large deck area and substantial topsides payload capacity. They are in use in a variety of water depths and environments around the world. It is a good solution for offshore oil and gas development in fields where there is lack of an export pipeline system to shore. However due to their inherently high motions in waves, they are limited in the types of risers they can host. The Low Motion FPSO (LM-FPSO) is a novel design that is developed to maintain the advantages of the conventional FPSOs while offering significantly lower motion responses. The LM-FPSO design generally consists of a box-shape hull with large storage capacity, a free-hanging solid ballast tank (SBT) located certain distance below the hull keel, a few groups of tendons arranged to connect the SBT to the hull, a mooring system for station keeping, and a riser system. The addition of SBT to the floater results in a significant increase in heave, roll and pitch natural periods, mainly through the mass and added mass of the SBT, which significantly reduces motions in the wave frequency range. Model tests were performed at the Korea Research Institute of Ships & Ocean Engineering (KRISO) in the fall of 2016. An analytical model of the basin model (MOM) was created in Orcaflex and calibrated against the basin-model. Good agreement is achieved between global performance results from MOM's predictions and basin model measurements. The model test measurements have further verified the superior motion response of LM-FPSO. In this paper, numerical results are presented to demonstrate the comparison and correlation of the MOM results with model test measurements. The verification of the superior motion response through model test measurements is also presented in this paper.
( Cheng Peng ),( Chang-hwan Bae ),( Eun-hong Choi ),( Myoung-kwon Kim ) 대한물리의학회 2019 대한물리의학회지 Vol.14 No.2
PURPOSE:This study was conducted to investigate effects of shoulder adduction load on rotator cuff muscles, including the infraspinatus, during the external rotation exercise of shoulder. METHODS: This study investigated 16 healthy university students from Daegu University. Before the study started, all participants understood the content of this study. They signed an informed consent form. Five electrodes for surface electromyography (sEMG) were attached to their infraspinatus, middle deltoid, posterior deltoid, upper trapezius and pectoralis major. The participants then underwent the shoulder external rotation exercise with the shoulder adduction at three loads (0 mmHg, 20 mmHg and 40 mmHg) that were controlled using a stabilizer Pressure Biofeedback ™ device. The surface electrodes recorded the electromyographic data during the external rotation exercise of shoulder. RESULTS: The infraspinatus was most activated when the shoulder adduction pressure was 40 mmHg during the external rotation exercise of shoulder. The infraspinatus activation significantly increased when the shoulder adduction pressure intensity increased, while the middle deltoid activation and the posterior deltoid activation significantly decreased (p<.05). CONCLUSION: In conclusion, increases in shoulder adduction load intensity during shoulder external rotation exercises can have a positive effect on the infraspinatus, which consists of rotator cuff muscles, with minimal activity in the middle and posterior deltoid.
Bicluster and Pathway Enrichment Analysis of HCV-induced Cirrhosis and Hepatocellular Carcinoma
Cheng, Peng,Cheng, You,Su, Mei X.,Li, Dong,Zhao, Guo Z.,Gao, Hui,Li, Yan,Zhu, Jie Y.,Li, Hua,Zhang, Tao Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.8
Background: Hepatocellular carcinoma (HCC) is the sixth most common cancer worldwide and the most common form of liver cancer. However, while it is associated frequently with hepatitis C virus (HCV) there is only an elementary understanding of its molecular pathogenesis. Methods: To gain insight into the molecular mechanisms of HCV-induced hepatocarcinogenesis, we performed microarray analysis on 75 surgical liver samples from 48 HCV-infected patients. Results: There were 395 differentially expressed geness between cirrhotic samples and HCC samples. Of these, 125 genes were up-regulated and 270 genes were down-regulated. We performed pathway enrichment analysis and screened as described previously. Conclusions: The differentially expressed genes might be involved in hepatocarcinogenesis through upregulating the pathways of ECM-receptor interaction, focal adhesion, cell adhesion molecules and other cancer-related pathways, and downregulating the pathways of "complement and coagulation cascades". We hope our results could aid in seeking of therapeutic targets for HCV-induced hepatocellular carcinoma.