• Journal of Chest Surgery
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• v.23 no.3
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• pp.566-571
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• 1990

The Bronchial stump disruption in bronchopleural fistula with empyema thoracis after pneumonectomy has remained one of the most dreaded complications of thoracic surgery. Management of chronic bronchopleural fistula still poses a therapeutic dilemma in spite of various surgical techniques that have been attempted to control this complication. Only recently, transsternal transpericardial approach for repair of the postpneumonectomy bronchopleural fistula has been utilized in some cases. The patient was a 31 year-old woman who was admitted to our hospital on August 18th, 1989 due to right postpneumonectomy bronchopleural fistula with empyema thoracis for 5 years since she had undergone right pneumonectomy due to pulmonary tuberculosis at E-hospital in 1984. Transsternal transpericardial closure of the fistula was employed and then the thoracic catheter was removed two months later, after the empyema cavity was sterilized by the Clagett method. So, we think this surgical technique is a relatively simple and effective method to the control of chronic postpneumonectomy bronchopleural fistula with empyema thoracis.

• Korean Journal of Bronchoesophagology
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• v.3 no.1
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• pp.154-158
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• 1997

A case of squamous cell carcinoma of the thyroid gland associated with esophageal carcinoma is presented A squamous cell carcinoma of the thyroid gland is rare and is prognosis is poor. The histogenesis of squamous cell carcinoma is not clear, but at present, it is believed that most cases arise from the follicular epithelium It is very important to know whether squamous cell carcinoma of the thyroid is primary or secondary. Thus, the possibility of squamous cell carcinoma in the thyroid being the result of a metastasis or extension from a primary tumor in the trachea or esophagus must always be ruled out and intensive evaluation should be required to confirm the diagnosis of this disease. We report a squamous cell carcinoma of the thyroid associated with esophageal cancer with brief review of literature.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.47 no.2
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• pp.145-148
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• 2021

Minor salivary gland sialolithiasis (MSGS) is a not uncommon oral mucosal disease. Its clinical appearance may mimic a mucocyst or other benign submucosal overgrowth. Stasis of saliva, which accompanies MSGS, usually results in minor salivary gland inflammation, with a chronic sialadenitis appearance. MSGS typically is a painless lesion but can become painful when the salivary gland parenchyma or excretory duct becomes infected, with or without pus. However, misdiagnosis of this condition is rather common, as the clinical appearance is asymptomatic. The most common location is the upper lip, and MSGS affects males and females, with a slight predilection for males. The sialolith causing MSGS may be obvious during surgical excision, as in the case reported. In other cases, sialolith may be absent or fragmented. Differential diagnosis includes mucocele, swelling due to local irritation like fibroma and diapneusia, chronic abscess of the oral mucosa, and neoplasms either benign (lymphangioma, pleiomorphic adenoma) or malignant. Histopathological examination is needed to establish clinical diagnosis.

• Journal of Convergence for Information Technology
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• v.7 no.1
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• pp.93-98
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• 2017

To recover the capital market's confidence, interest in accounting ethics education has increased recently. The purpose of this paper is to introduce a simple classroom games for moral hazard problem and to analyze the results. This case study introduces the classroom games in which well-known experiment of principal-agent dilemma in experimental economics implemented accounting ethics education. This paper suggests that game lesson is effective and efficient way to understanding moral hazard problem. During the games, cause and effect of players' decision making react upon each other. This paper contributes to generating further discussion on accounting ethics education and providing practical implication.

• Knowledge Management Research
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• v.17 no.3
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• pp.207-225
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• 2016

Recently, flipped learning is being highlighted especially at the college of engineering because of its self-directed learning which direction matches that of the engineering education system. Although many engineering professors have tended to apply the flipped learning to their classes, they experienced a number of significant problems and challenges in practical implementing. By using TRIZ method as a tool for creative problem solving, that have been developed and applied in many fields ranging from engineering as well as management, this study aims to solve the education dilemma between learning efficiency and learning effectiveness, create a new concept of the flipped learning based on the solutions, and then explore its educational feasibility for successfully adopting it to engineering courses. This study suggests an instructional design for implementing the flipped learning according to the characteristics of engineering classes and then designs a new model of the flipped learning according to that procedure. Also, based on the empirical results in applying a new flipped learning model to the applied mathematics, this paper proposes several guidelines for the successful application of flipped learning in the future.

• The Journal of the Korean bone and joint tumor society
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• v.13 no.2
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• pp.201-206
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• 2007

It is a well-accepted tenet that wide surgical margins are necessary for the treatment of soft-tissue sarcomas, and it is still true that the rate of recurrence depends on the adequacy of the surgical margins. Sarcomas that rest directly against bone pose a dilemma for the surgeon. A wide margin is not possible in the literal sense without excision of the bone. Whereas reconstruction of skeletal defects is possible, it adds to the complexity of the surgery and increases potential complications. We report the experience of treatment in a case of synovial sarcoma which located at popliteal fossa adjacent to proximal tibia.

• Informatization Policy
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• v.21 no.3
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• pp.56-84
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• 2014

ICT development has led the government to provide more personalized services which means that the government has to collect more private information to satisfy the information demand from citizen. It is a dilemma because the more tailored information services may arise conflict against the right of private information protection which is one of the side effect by ICT. In this study, we analyzed the case of NEIS which still represents the issue of privacy conflict among each stakeholder's perspectives. To analyze the case, we used the frame analysis which is used as a tool for analyzing the case of public conflict. Through the analyses and discussions, we found the policy implication for the future ICT policies which can mediate the conflict between a data opening and the protection of privacy. Finally, we suggest a new governance approach for the better ICT policy contrary to top-down approach.

• Strategy21
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• s.40
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• pp.115-130
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• 2016

The security environment surrounding the East Asian seas is rapidly changing due to the naval arms race among coastal states. The arms race is likely to worsen the security dilemma of the countries involved, thus increasing the chances for armed conflicts. It is too early to tell how the contemporary naval arms race in the region will evolve. But, for sure, the level of uncertainty is increasingly becoming high and intense. At the same time, there is emerging a legal warfare or lawfare among the rival countries. In particular, the United States and China have been involved in a serious debate about the nature and scope of the right of innocent passage and freedom of navigation in other countries' maritime zones. In collaboration with its regional allies, the United States has also put normative pressures on China with its excessive claims in the South China Sea. The latest arbitral tribunal case between the Philippines and China illustrates the point. With both arms race and normative competition in play, the future of East Asian maritime security will remain very complex and uncertain.

• Journal of Trauma and Injury
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• v.33 no.1
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• pp.48-52
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• 2020

Composite skull defects in patients with severe head injuries are very challenging to manage. The dilemma when deciding whether to perform a definitive reconstruction is how long to wait for physiological recovery before an intervention complicates the situation. The inability of such patients to tolerate prolonged anesthetic exposure is a driving factor for performing the minimal intervention necessary to facilitate recovery. Herein, we present a case involving the successful immediate reconstructive treatment of a severely head-injured adolescent with a composite scalp defect secondary to trauma. A 14-year-old boy sustained a severe head injury from a motor vehicle accident with a composite scalp defect in the right fronto-parietal region. The frontal lobe was exposed, and the right eye was crushed and devitalized. The patient was deeply unconscious for 3 days, without any significant improvements before reconstructive surgery was proposed due to fear of possible meningitis resulting from the exposure of brain structures. We successfully managed the patient with a fronto-parieto-occipital flap, after which the patient promptly recovered consciousness.

• Journal of National Security and Military Science
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• s.5
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• pp.173-202
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• 2007

After successful nuclear tests Pakistan launched a more severe surprise attack toward India than before. It is highly possible that North Korea will adopt this Pakistan military strategy if it is armed with nuclear weapons. The North Korean forces armed, with nuclear bombs could make double its war capability through strengthening aggressive force structure and come into effect on blocking reinforcement of the US forces at the initial phase of war time. Therefore we may regard that Pyongyang's nuclear arming is a major one of various factors which increase possibility of waging a conventional warfare or a nuclear war. North Korea's high self-confidence after nuclear arming will heighten tension on the Korean Peninsula via aggressive military threat or terror toward South Korea, and endeavor to accomplish its political purpose via low-intensity conflicts. For instance, nuclear arming of the Pyongyang regime enforces the North Korean forces to invade the Northern Limit Line(NLL), provoke naval battles at the West Sea, and occupy one or two among the Five Islands at the West Sea. In that case, the South Korean forces will be faced with a serious dilemma. In order to recapture the islands, Seoul should be ready for escalating a war. However it is hard to imagine that South Korea fights with North Korea armed with nuclear weapons. This paper concludes that the Pyongyang regime after nuclear arming strongly tends to occupy superiority of military strategy and wage military provocations on the Korean Peninsula.