유방의 양성 및 악성 유두상 종양의 세포학적 소견의 비교 검색

이호정,공경엽,김봉희,안세현,박정미,허주령,강신광,노재윤,Lee, Ho-Jung,Gong, Gyung-Yub,Kim, Bohng-Hee,Ahn, Sei-Hyun,Park, Jeoug-Mi,Huh, Joo-Ryung,Khang, Shin-Kwang,Ro, Jae-Y. 대한세포병리학회 1999 대한세포병리학회지 Vol.10 No.1

Benign and malignant papillary neoplasms of the breast may be difficult to distinguish in both cytologic and histologic preparations. To define the cytologic features of benign and malignant papillary lesions, we retrospectively reviewed 18 cases of fine needle aspirates from histologically confirmed cases of papilloma or papillary carcinoma of the breast. This study included 3 intraductal papillary carcinomas, 3 invasive papillary carcinomas, and 12 intraductal papillomas. Ail cases were evaluated for presence or absence of papillary fragments, bloody background, apocrine metaplasia, macrophages, and degree of cellularity, atypia, and single isolated columnar epithelial cells. Papillary fragments were present in all cases. The background of the smear was bloody in all 6 carcinomas, but in only 7 out of 12 papillomas. Markedly increased cellularity was present in 4 carcinomas(67%) and 7 papillomas(58%). Single cells were present in 5 carcinomas(83%) and 8 papillomas(67%). The majority of papillomas and papillary carcinomas had mild to moderate atypia, and severe atypia was noted in one case of intraductal papillary carcinoma and one case of invasive papillary carcinoma. Apocrine metaplasia was absent in all cases of papillary carcinomas, but present in 8 papillomas(57%). Macrophages were noted in 4 carcinomas and were present in all cases of papillomas. The constellation of severe atypia, bloody background, absence of apocrine metaplasia and/or macrophages were features to favor carcinoma. Malignant lesions tended to show higher cellularity and more single isolated cells. The cytologic features mentioned above would be helpful to distinguish benign from malignant papillary lesions of the breast. However, because of overlapping of cytologic features, surgical excision should be warranted in all cases on papillary lesions of the breast to further characterize the tumor.

구강내 병변의 세침흡인 세포학적 소견

이호정,공경엽,정동해,허주령,김온자,Lee, Ho-Jung,Gong, Gyung-Yub,Chung, Dong-Hae,Huh, Joo-Ryung,Kim, On-Ja 대한세포병리학회 1998 대한세포병리학회지 Vol.9 No.2

Fine needle aspiration cytology(FNAC) has become a popular method for the diagnosis of a wide variety of both superficial and deep-seated lesions. However, there are few reports about the potential of FNAC for the diagnosis of intraoral lesions. We experienced 44 FNACS from intraoral lesions at Asan Medical Center: 22 from the palate, 6 from the tongue, 5 from the parapharyngeal space, 5 from the lip, 2 from the floor of mouth, 1 from the buccal mucosa, and 3 from other intraoral sites. Histological confirmation was obtained in 32 cases and we analyzed 27 cases excluding 5 cases of inadequate aspirates. Diagnosis was specifically made in 19 of 27 cases(70%) including 1 mucoepidermoid carcinoma, 1 undifferentiated carcinoma, 1 chordoma, 9 pleomorphic adenomas, 1 neurofibroma, and 6 benign lesions. There were three false negative cases(sensitivity, 62.5%) and no false positive cases(specificity, 100%): Two cases diagnosed as "cystic lesion" were confirmed to be mucoepidermoid carcinomas and a case diagnosed as pleomorphic adenoma was proved to be adenoid cystic carcinoma. The results of our study suggest that FNAC is a useful technique in the diagnosis of intraoral lesion.

세침흡인 세포검사로 진단된 턱밑 연조직 방선균증 - 1예 보고 -

이호정,김동훈,이원미,김은경,주종은,Lee, Ho-Jung,Kim, Dong-Hoon,Lee, Won-Mi,Kim, Eun-Kyung,Joo, Jong-Eun 대한세포병리학회 2005 대한세포병리학회지 Vol.16 No.1

A patient with actinomyces infection of the submandibular soft tissue was diagnosed by fine needle aspiration cytology (FNAC). A 38-year-old woman presented with a right submandibular mass which slowly grew in size over one month. Clinically and radiologically, the lesion was considered as tuberculous lymphadenitis or cellulitis. The polymerase chain reaction for tuberculosis was done by aspirated specimen but the result was negative. The smears of aspiration cytology showed characteristic colonies (sulfur granules) of actinomyces in inflammatory background. After antibiotic therapy for eight months, the patient has been well, showing no detectable mass. This patient was simply and rapidly diagnosed by FNAC and can avoid unnecessary surgical biopsy.

심층학습 기반 표정인식을 통한 학습 평가 보조 방법 연구

이호정(Lee, Ho-Jung),이덕우(Lee, Deokwoo) 한국공학교육학회 2020 공학교육연구 Vol.23 No.2

This paper proposes the approaches to the evaluation of learning using concepts of artificial intelligence. Among various techniques, deep learning algorithm is employed to achieve quantitative results of evaluation. In particular, this paper focuses on the process-based evaluation instead of the result-based one using face expression. The expression is simply acquired by digital camera that records face expression when students solve sample test problems. Face expressions are trained using convolutional neural network (CNN) model followed by classification of expression data into three categories, i.e., easy, neutral, difficult. To substantiate the proposed approach, the simulation results show promising results, and this work is expected to open opportunities for intelligent evaluation system in the future.

패션 렌탈 서비스 속성과 소비자 경험에 관한 연구

이호정 ( Lee Ho Jung ),오희선 ( Oh Hee Sun ) 한국기초조형학회 2020 기초조형학연구 Vol.21 No.1

본 연구는 패션 렌탈 서비스 속성에 따른 소비자 경험을 밝히고자, 20-30대 여성 9명을 대상으로, 2018년 11월 23일부터 12월 4일까지 개별 심층 면접을 실시하였다. 본 연구의 결과는 다음과 같다. 첫째, 경제성은 렌탈 비용, 관리 비용, 시간 비용 측면에서 경제적 효율을 경험하고 있었다. 저렴한 가격으로 많은 옷을 입을 수 있다는 가격적 측면과 옷의 관리 비용에 대한 금전적 비용에 대한 만족을 느끼고 있었다. 하지만 금전적 비용뿐만 아니라 패션 제품 선택을 위해 소요되는 시간의 경제적 효용 등 비금전적 비용도 중요하게 고려하고 있음을 알 수 있었다. 둘째, 편리성은 배송 및 반납, 보관 및 관리 측면에서 이용의 편의를 경험하고 있었다. 배송 및 회수에 절차상 불편함이 없고, 착용 후 바로 반납 처리하므로 보관 및 관리도 할 필요가 없으므로 편리하다고 하였다. 하지만 자기 것이 아니므로 착용 시, 부담감은 느끼고 있다. 셋째, 다양성은 제품, 브랜드, 스타일링 측면에서 다양한 경험을 충족하고 있었다. 피험자들은 제품과 브랜드의 다양함에 대한 만족을 느끼고 있으나, 인기 제품들은 렌탈이 어렵거나 유행이 지난 제품들이 많은 점에 대해 아쉬움을 느끼고 있었다. 그리고 세탁 및 수선이 잘된 제품이라도 여러 사람들이 입거나 오래된 흔적은 남아 있다고 하였다. 한 벌로 코디된 상품 렌탈 시, 피팅 된 사진이 없어 실제 착용 느낌을 알 수 없는 아쉬움도 있었다. 넷째, 친환경성은 자원을 효율적으로 순환시켜 환경을 보호하는 가치적 경험을 충족하고 있었다. 다섯째, 쾌락성은 사용과정을 통해 감각적 즐거움을 경험하고 있었다. 피험자들은 개인적으로는 패션 렌탈 서비스 이용과정을 통해 감각적인 즐거움을 느끼고 있는 반면, 패션 렌탈 서비스를 이용하고 있다는 사실을 타인에게 알려지는 것에 대한 심리적 불안감을 가지고 있었다. This study conducted a personal in-depth interview with 9 women in their 20s and 30s from November 23 to December 4, 2018 to find out the consumer experience according to the attributes of fashion rental service. The results of this study are as follows. First, economics was experiencing economic efficiency in terms of rental costs, administrative costs and time costs. I was satisfied with the price aspect of being able to wear a lot of clothes at an affordable price and the financial cost of managing them. However, we can see that not only the monetary cost, but also the non-monetary cost, such as the economic utility of the time it takes to select a fashion product, is important. Second, convenience was experienced in terms of delivery and return, storage and management. They said that it is convenient because there is no procedural inconvenience in shipping or recovery, and it does not need to be stored or managed immediately after wearing it. But since it's not yours, I feel pressured when I wear it. Third, diversity was meeting various experiences in terms of products, brands and styling. The subjects were satisfied with the variety of products and brands, but they were disappointed that popular products were difficult or out of fashion. They also said that even if the product is well-washed and repaired, there are still traces of people wearing it or old. When a set of products was co-ordinated together, there were also some regrets that it was hard to know how it felt to wear because there were no photos of it. Fourth, eco-friendly was meeting the valuable experience of protecting the environment by efficiently circulating resources. Fifth, pleasure was experiencing sensual pleasure through the process of use. While the subjects personally felt a sense of pleasure through the process of using the fashion rental service, they had a psychological anxiety about letting others know that they were using the fashion rental service.

중국 신장(新疆) 지역 출토 고대복식에 관한 재고찰

이호정(Ho Jung Lee) 아시아민족조형학회 2021 아시아민족조형학보 Vol.22 No.-

Diclofenac에 의한 다발성 고정약진 2예

이호정 ( Ho Jung Lee ),홍정연 ( Jeong Yeon Hong ),박태흠 ( Tae Heum Park ),이성열 ( Sung Yul Lee ),이종석 ( Jong Suk Lee ),정의현 ( Euy Hyun Chung ),이상훈 ( Sang Hoon Lee ),김정은 ( Jung Eun Kim ) 대한피부과학회 2020 대한피부과학회지 Vol.58 No.6

Fixed drug eruption (FDE) is a drug-induced disorder that may appear as patches or bullae. It recurs at the same sites as those involved in exposure to the same drug (causative drug). We encountered two cases of generalized FDE, and both patients had a history of diclofenac exposure before the onset of skin lesions. In the first case, an 82-year-old female patient presented with multiple erythematous patches on the trunk and lower extremities. In the second case, a 71-year-old male patient developed multiple bullae on violaceous patches on the trunk and extremities. The findings of histopathologic examinations were indicative of the diagnosis of FDEs. Although diclofenac is commonly used as a non-steroidal inflammatory drug, diclofenac-induced generalized FDE occurs rarely and has not been reported in Korea. With reuse of causative drugs, the size and number of lesions tend to increase. Therefore, early diagnosis of FDE is important, and avoidance of repeated exposure to drugs should be educated

진동절연계의 진동파워 해석에서 진동절연요소 질량의 영향에 관한 연구

이호정(Ho-Jung Lee),최규상(Gyu-Sang Choe),김광준(Kwang-Joon Kim) 한국소음진동공학회 1998 한국소음진동공학회 학술대회논문집 Vol.1998 No.11

신장(新疆) 지역 고대(BCE 20C~CE 8C) 신발의 유형과 변화 요인

이호정 ( Lee Ho-jung ) 중앙아시아학회 2017 中央아시아硏究 Vol.22 No.1

Xinjiang, China is one of the most important places where numerous ethnicities have experienced cultural exchanges and acculturation. This paper focuses on the culture of shoes of various ethnicities native to Xinjiang in the ancient times. The shoes, as a unique part of each culture helps to understand the cultural exchange of the region. In this paper this begins with the classification of the shoes and further investigate the factors of transformation. The shoes of the region are classified into three basic types: sandals, slip-ons, and boots. To Consider the formed aspect by the type of shoe, the boots had appeared earlier than slip-ons. In other words, boots were worn from about 4000 years ago, which suggests that it is the reflection of their climate and geography as well as the nomadic and pastoral lifestyle. The styles of the boots had developed from simple covering of the feet and ankles, through an early styles made of leather, woolen material and felt, and finally to the boots of the various designs and material in the 3th century, which suggest the cultural exchanges through the Eurasian continent. Another type of shoes, slip-ons, have appeared since the 2nd century BCE, which seem to have been introduced by influencing of the continuous expansion of the Han dynasty into the West. As Xinjiang region was became a trade route of international merchants on the Silk Road, and silp-ons have been more developed by influencing of its circumstance. The advent of slip-ons is the result of the social changes including the imported culture, the changes in lifestyle, and the economic development which the caravan trade brought about. Summarizing of the aspect of shoes changing in Xinjiang, the people who had lived in there wore boots only. With going into West of Han dynasty, slip-ons which had originated of Chinese Culture were introduced in Xinjiang and then, those two types of shoes were worn by the people of there. The cause of coexisting of two type shoes in Xinjiang, were presumed to be influenced of changing their life style that a nomadic life in ancient was changed gradually to be a trading post on Silk Road.

모회사 뉴스 감성을 이용한 딥러닝 기반 자회사 주가 등락 예측

이호정(Lee Ho Jung),손명균(Son Myeong Gyun),황병현(Hwang Byeonghyeon),윤고은(Youn Go Eun),전수현(Jeon Su Hyeon) 한국정보기술학회 2022 Proceedings of KIIT Conference Vol.2022 No.12

본 연구는 모회사의 뉴스 감성이 자회사의 주가 등락에 영향을 주는지 파악하기 위해 네이버 뉴스를 수집하여 분석하였다. 뉴스의 감성을 처리하기 위해 KoELECTRA를 사용하였으며, 주가 등락 예측 모델로는 LSTM을 사용하였다. sequence size별 예측을 진행했으며 분석 결과, 모회사의 뉴스가 주가 등락에 영향을 끼쳤음을 확인하였다. This study used to KoELECTRA to collect and analyze Naver news to understand whether the sensitivity of parent company news affects the stock price of subsidiaries, and used LSTM as a predictive model of stock price fluctuation. We made predictions by sequence size, and as a result of the analysis, we confirmed that the news of the parnet company affected the stock price.