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Regulation on Darkcoins in Korea : Focusing on Its Policy Analysis
한대훈,정제용 한국산업보안연구학회 2020 한국산업보안연구 Vol.10 No.3
Since its appearance in 2008, cryptocurrencies have provided not only opportunities but also threats to individual users and society. Cryptocurrency is characterized by no central control due to blockchain technology and strengthened anonymity. Recently, Darkcoin with enhanced anonymity have appeared and it is being abused for various crimes, terrorism, and money laundering. Recently, related crimes are continuously increasing in Korea., as we have seen in the “Telegram Nth room incident”. The purpose of this study is to make regulatory policy proposals to relevant government agencies by examining the criminality of Darkcoin and analyzing related policies. First, through stakeholder analysis, interests and influences of regulatory agencies, law enforcement agencies, virtual currency service providers, cyber security companies, users, and criminals are examined. Second, domestic policy and legal environments are reviewed and four policy alternatives are suggested. Third, those policy alternatives are analyzed in terms of cost, effectiveness, implementation feasibility, and political feasibility through Criterion-Alternative Matrix. Based on these analyses, relevant policy recommendations are proposed to the authorities.
한대훈,강창무,이우정,지훈상 연세대학교의과대학 2014 Yonsei medical journal Vol.55 No.1
Radical antegrade modular pancreatosplenectomy (RAMPS) is regarded as a reasonable approach for margin-negative and systemic lymph node clearance in left-sided pancreatic cancer. We present a patient with more than 5 years disease-free survival after robotic anterior RAMPS for pancreatic ductal adenocarcinoma in the body of the pancreas. The distal part of pancreas, soft tissue around the celiac trunk, and the origin of splenic vessels was dissected with the underlying fascia between the pancreas and adrenal gland. Resected specimen was removed through small vertical abdominal incision. Robot working time was about 8 hours, and blood loss was about 700 mL without blood transfusion. He returned to an oral diet on the postoperative first day and recovered without any clinically relevant complications. There was no lymph node metastasis, perineural or lymphovascular invasion. Both the pancreatic resection margin and the tangential posterior margin were free of carcinoma. The patient received only postoperative adjuvant radiotherapy around the tumor bed. The patient has survived for more than 5 years without evidence of cancer recurrence. Minimally invasive radical left-sided pancreatectomy with splenectomy may be oncologically feasible in well-selected pancreatic cancer.
한대훈(Dai Hoon Han),최기홍(Gi Hong Choi),김동현(Dong Hyun Kim),최새별(Sae Byeol Choi),강창무(Chang Moo Kang),김경식(Kyung Sik Kim),최진섭(Jin Sub Choi),박영년(Young Nyun Park),박준용(Jun Yong Park),김도영(Do Yong Kim),한광협(Kwang-H 한국간담췌외과학회 2008 한국간담췌외과학회지 Vol.12 No.4
Purpose:Although surgical resection is the most effective treatment for hepatocellular 4 carcinoma (HCC), high recurrence after resection is a major challenging problem. We attempted to determine the optimal strategies for improving the long-term surgical outcome through the review of our 10 years’ experience with surgically treating HCC. Methods: We retrospectively reviewed 497 patients who received curative resection at the Yonsei University Health System from January 1996 to August 2006. Results: The 5 year disease-free rate and the overall survival rate after curative resection were 45.0% and 63.9%, respectively. Of the 497 patients, 491 (98.8%) were Child-Pugh A and 107 (56.3%) were diagnosed with liver cirrhosis. The postoperative complication and mortality rates were 28.6% and 1.8%, respectively. Of the 243 recurrent patients, 184 (75.7%) were diagnosed with intrahepatic recurrence alone. Of these intrahepatic recurrent patients, 169 (91.9%) received active treatment, including transplantation (n=7), re-resection (n=12), local ablation therapy (n=18) and transarterial chemoembolization (n=132). Multivariate analysis revealed that perioperative transfusion, a satellite nodule, the pathologic TNM stage, the Edmondsons-Steiner grade, the serum alkaline phosphatase (ALP) and aspartate aminotransferase levels and cirrhosis were associated with disease free survival, and perioperative transfusion, a satellite nodule, macroscopic vascular invasion, the Edmondsons-Steiner grade, the ALP and serum albumin levels and the platelet count were related with overall survival after resection. Conclusions: The long-term surgical outcome of HCC can be further improved by proper patient selection, delicately performed surgery and administering postoperative adjuvant therapy for patients with a high risk of recurrence. Early diagnosis and aggressive treatment are needed to treat the recurrence.