• Title/Summary/Keyword: incidental

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Huge Primary Pleural Cyst Mimicking an Exophytic Echinococcal Cyst: A Case Report

  • Jaeshin Yoon;Hyun Ah Lim;Hee Kyung Kim;Kyung Soo Kim
    • Journal of Chest Surgery
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    • v.56 no.4
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    • pp.286-289
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    • 2023
  • A 58-year-old woman presented with an incidental asymptomatic mass occupying the entire right lower thorax. A radiologic study demonstrated a huge cystic mass, initially suggestive of an exophytic echinococcal cyst. After unsuccessful catheter drainage, the patient was referred for surgery, and curative resection of the lung-, heart-, and diaphragm-compressing mass was performed under video-assisted thoracoscopic surgery. Culture studies revealed no growth of parasitic, bacterial, or fungal infections, and the final pathological result confirmed a primary pleural cyst. Thoracic cystic masses mostly manifest as bronchogenic or pericardial cysts, while primary pleural cysts have rarely been reported. We present a rare case of a huge pleural cyst that initially mimicked an echinococcal cyst.

Experimental Proof for Symmetric Ramsey Numbers (대칭 램지 수의 실험적 증명)

  • Lee, Sang-Un
    • Journal of the Korea Society of Computer and Information
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    • v.20 no.3
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    • pp.69-74
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    • 2015
  • This paper offers solutions to unresolved $43{\leq}R(5,5){\leq}49$ and $102{\leq}R(6,6){\leq}165$ problems of Ramsey's number. The Ramsey's number R(s,t) of a complete graph $k_n$ dictates that n-1 number of incidental edges of a arbitrary vertex ${\upsilon}$ is dichotomized into two colors: (n-1)/2=R and (n-1)/2=B. Therefore, if one introduces the concept of distance to the vertex ${\upsilon}$, one may construct a partite graph $K_n=K_L+{\upsilon}+K_R$, to satisfy (n-1)/2=R of {$K_L,{\upsilon}$} and (n-1)/2=B of {${\upsilon},K_R$}. Subsequently, given that $K_L$ forms the color R of $K_{s-1)$, $K_S$ is attainable. Likewise, given that $K_R$ forms the color B of $K_{t-1}$, $K_t$ is obtained. By following the above-mentioned steps, $R(s,t)=K_n$ was obtained, satisfying necessary and sufficient conditions where, for $K_L$ and $K_R$, the maximum distance should be even and incidental edges of all vertices should be equal are satisfied. This paper accordingly proves R(5,5)=43 and R(6,6)=91.

Clinicopathologic Characteristics of Incidentally Discovered Thyroid Carcinomas (갑상선 우연암종의 임상병리적 특성)

  • Chung Woung-Youn;Cheong Jae-Ho;Chang Hang-Seok;Park Cheong-Soo
    • Korean Journal of Head & Neck Oncology
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    • v.16 no.1
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    • pp.64-68
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    • 2000
  • Objectives: With the recent advances and increasing use of imaging techniques in examination of the neck, the incidence of incidentally discovered thyroid carcinoma has been increasing. This study was carried out to evaluate the clinicopathologic characteristics of incidental thyroid carcinomas and to find optimal therapeutic strategies for these lesions. Materials & Methods: From Jan. 1988 to Aug. 1998, 1,053 patients were operated on for thyroid cancer, of whom 127(12.1%) had incidentally discovered thyroid cancers which were identified during routine health checkups(n=40), diagnostic procedures for unrelated medical conditions(n=39) and mass screening for thyroid cancer(n=48). The preoperative diagnosis was obtained by ultrasound-guided FNAB and the extent of surgery was determined based on frozen section examinations, as well as prognostic factors and gross findings at the time of surgery. Results: There were 6 men and 121 women with a mean age of 45.9 years. Histopathological diagnosis included papillary carcinomas(n=1l9), follicular carcinomas(n=6), poorly differentiated carcinoma(n=l) and medullary carcinoma(n=1). Thirty patients(23.6%) had multifocallesions. The mean diameter of the tumors was 1.1 cm(0.2-3.4 cm). Capsular invasions were found in 53 patients(41.7%) and nodal metastases in 41(32.3%). The surgical procedures used were: 90 less-than total thyroidectomies and 37 total thyroidectomies with central neck node dissection. Lateral neck dissection was added in 5 patients. According to TNM staging, 79 patients(63.2%) were at stage I, 15(12.0%) at stage II, 31(24.8%) at stage III and 0(0.0%) at stage IV. By AMES scoring system, 102 patients(81.6%) were in the low-risk group and 23(18.4%) in the high-risk group. And by MACIS scoring system, 103(86.6%) of 119 papillary thyroid cancer patients were less than 6. Conclusions: The clinicopathological characteristics of incidentally discovered thyroid carcinomas are similar to ordinary thyroid carcinomas. The treatment of choice should be individualized based on the particular clinical situation encountered, as in ordinary thyroid carcinomas.

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Legal Study on the Provision of Financial Services Professionals and the Policy Implication for Korea -Based on the UK Financial Services and Markets Act Systems- (전문직종사자의 금융서비스 제공에 관한 법적 고찰과 국내 시사점 -영국 금융서비스 및 시장법 체계를 바탕으로-)

  • Park, Tae-Jun;Park, Chang-Wook
    • Management & Information Systems Review
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    • v.35 no.3
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    • pp.81-93
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    • 2016
  • UK "FSMA" provides a safe harbour for members of professions, which are lawyers, accountants, and actuaries in their provision of certain financial services, despite the general prohibition, the professions carry on exempt regulated activities. In particular, DPBs(designated professional bodies), which professional bodies are designated by the Treasury, must have rules and have to supervise and regulate their members those activities by rules. Also, the FSA must keep itself informed about the role of DPBs, and may make directions concerning the safe harbour in relation to particular classes of persons of different descriptions of regulated activities. On the other hand, Korea "FSCMA" explicitly except provision of financial services by professions to investment adviser without regard to mainstream financial services activities or incidental activities. Under "FSMA", if the professions conduct provision of financial services as mainstream activities, they must be authorized person and even if their activities is incidental, they have to comply with exemption sections. Therefore, there is a need of prepare the legal safeguards about provision of financial services by professions for the investor protection.

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Operation Financing Method for Management Activities and Effect on Management Performance in Regional Public Hospitals (지방의료원의 경영활동 운영자금 조달방법과 경영성과에 미치는 영향)

  • Jung, Yong-Mo;Ha, Au-Hyun
    • Journal of Convergence for Information Technology
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    • v.10 no.11
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    • pp.324-331
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    • 2020
  • This study used the financial information of 29 Regional public hospitals registered in the HASPA. Regional public hospitals analyzed the ratio of operating financing by management activities and how they affect net profit. The results of the study, Regional Public Hospitals ratio of fund financing for management activities was 83.50 percent for medical revenues, 9.53 percent for Incidental Revenue of Medical, 4.54 percent for Contribution Revenue, 4.42 percent for Other non-medical profits, 1.21 percent for depreciation Expense and 0.73 percent for Amount of reserve for unique purpose project. As a result of examining the effect of financing by management operation on net profit, the ratio of operating funds by medical revenue, by incidental revenue of medical, by contribution revenue and by other non-medical profits had a positive impact on net profit of Regional public hospitals. And It has been confirmed that the ratio of amount of reserve for unique purpose project has a negative impact on net profit. Therefore, it is necessary for Regional public hospitals to manage costs in consideration of revenues and internal reserves.

Effect of Psychological Variables on Decision-making Time in the Online Centipede Game (온라인 지네 게임으로 알아본 심리적 변인이 의사결정 시간에 미치는 영향)

  • Kim, Bora;Kwon, Young-Mi
    • Journal of Digital Convergence
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    • v.15 no.12
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    • pp.169-185
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    • 2017
  • Given that nowadays things get very fast due to the pervasive use of the Internet and mobile devices, decision-making time can be an important variable in the online economic decisions. Although in experimental and behavioral economics, measures like scores or earnings are usually preferred, this study argues that the time variable can be dealt with as a new decision outcome. Thus, by selecting some psychological factors presumably impactful in the online context (i.e., incidental emotions, psychological distances, and individual's impulsivity), this study tested their effect on decision time in the online centipede game. As a result, the mean decision time in the game was longer (1) in the happiness condition than in the anger condition and (2) in the friend condition than in the stranger condition. The people with attention difficulties spent a short time in the decision and the people who dislike complex problems spent a short time in explaining their decision. This study can contribute to the field as it used the decision time as the dependent variable and it tested the effect of psychological factors in the context of online decision-making. Future studies can be conducted in other online decision situations or by considering other psychological variables.

A Study on Maximum Likelihood Method for Multi Target Estimation (다중 목표물 추정을 위한 최대 우도 방법에 대한 연구)

  • Lee, Min-Soo
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.13 no.3
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    • pp.165-170
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    • 2013
  • In spatial, desired target direction of arrival estimation is to find a incidental signal direction on receive antennas. In this paper, we were an estimation a desired target direction of arrival using maximum likelihood method. Direction of arrival estimation method estimated a desired target calculating the maximum likelihood sensitivity using singular value decomposition above threshold signals among receive signals in maximum likelihood method. Through simulation, we were analysis a performance to compare existing method and proposal method. In direction of arrival estimation, proposed method is effectivity to decrease processing time because it is not doing an eigen decomposition in direction of arrival estimation, and desired target correctly estimated. We showed that proposal method improve more target estimation than general method.

Impact of Environmental Uncertainty, Trust and Information Technology on User Behavior of Accounting Information Systems

  • DWIRANDRA, A.A.N.B.;ASTIKA, Ida Bagus Putra
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.12
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    • pp.1215-1224
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    • 2020
  • Micro, Small and Medium Enterprises in Denpasar City still face low mastery of technology and financial management, one of which is the application of technology-based accounting information systems (e-commerce) for small and medium enterprises. The research objective was to determine the relationship between environmental uncertainty, trust and ease of information technology moderating behavior in accounting information systems. Research with a quantitative approach, the method used is multiple linear regression with moderated regression analysis. The study population was 816 small and medium enterprises. The sampling method technique was the incidental sampling approach and the Slovin formula so that a sampling of 100 small and medium enterprises that had used e-commerce was determined in the city of Denpasar. The results of research that have been conducted determine the relationship between user behavior in accounting information systems that affect individual performance, the relationship between environmental uncertainty affects accounting information systems mediated by individual performance, while the ease of information technology and its ability to be mediated by individual performance has an effect on the behavior of using accounting information systems. The application of accounting information systems in small and medium enterprises is expected to improve individual performance so as to increase income.

Incidental finding of subclavian artery occlusion and subsequent hypoplastic internal mammary artery as a candidate recipient vessel in DIEP flap breast reconstruction

  • Seong, Ik Hyun;Woo, Kyong-Je
    • Archives of Plastic Surgery
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    • v.46 no.6
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    • pp.599-602
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    • 2019
  • We report a case of autologous breast reconstruction in which a thoracodorsal vessel was used as a recipient vessel after a hypoplastic internal mammary vessel was found on preoperative computed tomography (CT) angiography. A 46-year-old woman with no underlying disease was scheduled to undergo skin-sparing mastectomy and breast reconstruction using a deep inferior epigastric artery perforator flap. Preoperative CT angiography showed segmental occlusion of the right subclavian artery with severe atherosclerosis and calcification near the origin of the internal mammary artery, with distal flow maintained by collateral branches. The thoracodorsal artery was selected to be the recipient vessel because CT showed that it was of adequate size and was not affected by atherosclerosis. The patient experienced no postoperative complications, and the flap survived with no vascular complications. The breasts were symmetrical at a 6-month follow-up. This case highlights that preoperative vascular imaging modalities may help surgeons avoid using diseased vessels as recipient vessels in free flap breast reconstructions.

Effects of the Health Support Network Project on Musculoskeletal Disorders of Females (근골격계 질환 여성의 건강지원 네트워크 사업 효과)

  • Kim, Deok-Ju;Han, Hee-Jung;Yang, Yeong-Ae
    • The Korean Journal of Health Service Management
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    • v.9 no.1
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    • pp.169-178
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    • 2015
  • This study implemented a health support network project to improve the quality of life of women with musculoskeletal disorders. These activities were intended to analyze the effects of the impact on the quality of life of women with musculoskeletal diseases, continuing to base their future needs for materials and practice so as to provide a method for this purpose. On August 19, 2013 through December, a survey of 320 people living in Seoul included 31 women with symptoms of musculoskeletal disorders. Another, 16 weeks led to a total of 127 people with housewives screened as a subjects for social support networks projects. After the research, the health support network project was implemented, and most musculoskeletal pain was reduced, depression levels were reduced, and a quality improvement was noted in health-related life activities. In particular, mental- health-related quality of life was found to increased. As incidental factors that may cause musculoskeletal disorders, marital status, living with family, low income, and a high depression index were related to low health-related quality of life. Future studies can support continued health at the local business community level rather than with smaller samples. This work can also be supported by follow-up studies to evaluate the effectiveness of program.