A Case of Placenta Increta Presenting as Delayed PostabortalIntraperitoneal Bleeding in the First Trimester

Jieun Kwon,Hyejin Cho,김상운,Gahyun Son,Bosung Yoon,남은지,김재훈,Jaewook Kim,조남훈,김영태,김성훈 대한의학회 2007 Journal of Korean medical science Vol.22 No.5

Age-related Outcome of Arthroscopic Repair of Isolated Type II Superior Labral Anterior to Posterior Lesions

Jieun Kwon,Yeun Ho Kim,Tae Sung Yeom,Joo Han Oh 대한견주관절의학회 2015 대한견주관절학회지 Vol.18 No.1

Background: Repair of superior labral anterior to posterior (SLAP) lesion in patients older than 40 years is controversial. The purpose of this study was to evaluate clinical outcomes of arthroscopic repair of SLAP lesions between younger and older patient groups. Methods: We reviewed 50 patients with isolated type II SLAP lesions who underwent arthroscopic repair. Patients were divided into 2 groups: group 1 included 20 patients aged <40 years, and group 2 included 30 patients aged ≥40 years. Functional outcome at the final follow-up was assessed using a visual analog scale for pain and satisfaction, American Shoulder and Elbow Surgeons form, Constant score, University of California at Los Angeles score, and periodic change in range of motion (ROM). Anatomical outcome was evaluated using computed tomography (CT) arthrography at least 1 year after surgery. Results: No significant differences in functional scores or postoperative ROM were observed between the 2 groups. In group 2, later recovery of ROM (forward flexion, p=0.025; internal rotation, p=0.034) and lower satisfaction score (p=0.06) were observed for atraumatic patients (n=16) compared to patients with traumatic injury (n=14). Fifteen patients in group 1 (15/17, 88%) and 21 patients in group 2 (21/26, 81%) demonstrated a healed labrum on postoperative CT arthrography, and this difference was not significant. Conclusions: The results of this study suggest that arthroscopic repair of type II SLAP lesions can yield good functional and anatomical outcomes regardless of age, if patient selection is adequate. However, the delay in ROM recovery and lower satisfaction, particularly in older patients without traumatic injury, should be considered.

Application of Motion Analysis to User Participation Behavior Model

Jieun Kwon,Ken Nah 대한인간공학회 2014 大韓人間工學會誌 Vol.33 No.3

Objective: The goal of this research is to develop new user behavior model using user motion analysis with microscopic perspective for attracting user"s participation in interactive space. Background: The interactive space is "human"s place", which is made up of complex elements of digital virtual space and traditional analog and physical environment based on human-computer interaction system. Human behavior has changed in it at the same time. If the user couldn"t make participation in interaction, the purpose of the system is not met, which reduces its effect. Therefore, we need to focus on interactive space that is potential future direction from a new point of view. Method: For this research, we would discuss and study fields of interactive space; (1) finding definition of interactive space and studying background of theory about it. (2) providing base of user behavior model with study of user"s context that is to be user information and motion. (3) examining user motion, classify basic motion type and making user participation behavior model in phases. Results: Through this process, user"s basic twenty motions which are systematized are taken as a standard for analysis of interaction process and participation in interactive space. Then, ‘NK-I5 (I Five)" model is developed for user participation types in interactive space. There are five phases of user participation behavior: Imperception, Interest, Involvement, Immersion, and Influence. In this analysis, three indicators which are time, motion types, and user relationship are found to be related to participation. Conclusion: The capabilities and limitation of this research is discussed to attract user participation. This paper focuses especially on contribution of design to lead user"s participation in interactive system and expectation to help adapt to user centered design of various interactive space with new aspect of user behavior research. Application: The results of the ‘NK-I5 (I Five)" model might help to realize successful interactive space based on user centered design.

Cytotoxic Drimane Sesquiterpenoids Isolated from <i>Perenniporia maackiae</i>

Kwon, Jaeyoung,Lee, Hyaemin,Seo, Young Hye,Yun, Jieun,Lee, Jun,Kwon, Hak Cheol,Guo, Yuanqiang,Kang, Jong Soon,Kim, Jae-Jin,Lee, Dongho American Chemical Society and American Society of 2018 Journal of natural products Vol.81 No.6

<P>A chemical investigation of a basidiomycetes fungus, <I>Perenniporia maackiae</I>, led to the discovery of 12 drimane sesquiterpenoids, including seven new constituents (<B>1</B>-<B>7</B>). The elucidation of the structures was performed via interpreting extensive spectroscopic methods, including ECD calculations. Among all isolated compounds, <B>1</B>, <B>2</B>, and <B>6</B> exhibited cytotoxicity toward six carcinoma cells, including ACHN, HCT-15, MDA-MB-231, NCI-H23, NUGC-3, and PC-3 cells, with half-maximal inhibition of cell proliferation values of 1.2-6.0 μM.</P> [FIG OMISSION]</BR>

How long should we monitor high-grade partial thickness rotator cuff tears?

Jieun Kwon(권지은),Do Yeon Kim,Je Kyun Kim,Jeong Dong Lee,Yeong Kyoon Park,Sae Hoon Kim,Joo Han Oh 대한견주관절의학회 2015 대한견주관절학회 학술대회논문집 Vol.2015 No.4

Usability Evaluation Scale for Product of Intelligent Homecare based on Retail Consumer

Jieun KWON,이진석 한국유통과학회 2019 유통과학연구 Vol.17 No.12

Purpose: The number intelligent homecare products are focused on the development of technology, resulting in a lack of realistic environments or requirements for consumers. The purpose of this paper is to define the consumer and context for intelligent homecare products and to develop a usability evaluation scale. Research design, data and methodology: For this study, first, consumer and contexts related to intelligent homecare products were analyzed through literature review. Second, the primary usability evaluation factors were derived for intelligent homecare products by collecting the factors related to usability evaluation and conducting in-depth interviews with experts. Third, the second usability evaluation factors were derived through survey and statistical analysis based on the derived usability evaluation factors. Results: As a result, users of intelligent homecare products were classified as primary users and secondary consumers and six related contexts. The usability evaluation scale was established with four factors – Functionality, Error, Convenience, and Emotion – and 13 items. Conclusions: This study can be the basis for developing and distributing products that meet the consumer environment and requirements related to intelligent homecare products that will contribute to securing the competitiveness of companies and developing the technology and service value of related industries.

Expressions of Emotion in Smart-doll Eyes using a Micro Display

Jieun Kwon 대한전자공학회 2020 IEIE Transactions on Smart Processing & Computing Vol.9 No.3

Recently, technologies for expressing or recognizing emotion from facial expressions in digital displays, such as those found on smart dolls and robots, have been advancing. Among such facial expressions, the eyes can express detailed emotions through fine movements and reactions. The purpose of this study is to extract the elements for expressions of emotion via digital media used for smart-dolls’ eyes, and to develop guidelines for creating such expressions of emotion. Extraction of factors for the expression of emotion along with a suitability verification process were conducted to develop suitable eye content for smart dolls through expert focus group interviews, surveys, and statistical analysis. As a result, four elements for the expression emotion with the eyes (eye shape, gaze, iris size, and effect) were derived, and 13 emotional expression guidelines were developed accordingly. The findings of this study are expected to play an important role as an effective technology tool for communication of emotions when developing facial expression systems using the digital displays that continuously appear.

Effects of Allogenic Dermal Fibroblasts on Rotator Cuff Healing in a Rabbit Model of Chronic Tear

Kwon, Jieun,Kim, Yun Hee,Rhee, Sung-Min,Kim, Tae In,Lee, Jimin,Jeon, Saewha,Oh, Joo Han SAGE Publications 2018 AMERICAN JOURNAL OF SPORTS MEDICINE - Vol.46 No.8

<P>Conclusion: This controlled laboratory study verified, on the basis of biomechanics and histology, the potential for the use of ADFs in rotator cuff healing. The current results suggest a new biological supplement to increase the rate of rotator cuff healing.</P>

종말서사 속 유토피아적 상상력의 가능성과 한계 ―『스테이션 일레븐』을 중심으로

권지은 ( Jieun Kwon ) 미국소설학회(구 한국호손학회) 2021 미국소설 Vol.28 No.1

This paper aims to explore how utopian imagination is intertwined with the post-apocalyptic narrative in Emily St. John Mandel’s Station Eleven. The novel is praised by many critics for conveying an optimistic and hopeful vision of the post-apocalyptic world, particularly through the power of culture and art. This paper follows this thread of criticism, on one hand, by arguing that Station Eleven indeed embodies the impulse of articulating utopian thoughts, which is heralded not just by art but also by the effort to reclaim the idea of community. Contrary to the majority of criticism on the novel, however, this paper also attempts to show the ideological limitation of the utopian impulse manifested in Station Eleven. This is revealed foremost by the novel’s treatment of reality. By positing modern technology as normality and Shakespeare as the only legitimate gatekeeper of spirituality, Station Eleven presents the real world as the ultimate goal for the post-apocalyptic world to return to. In doing so, the sense of temporality becomes disrupted and the apocalypse turns into a historically contingent incident. By closely examining these ahistorical aspects, this article argues that the utopian imagination of the novel, however with good faith, functions to reconfirm a romanticized version of reality and thus an ideological perception of history.

충돌 증후군에서 Ketorolac 국소주사 요법의 단기 효과

권지은(Jieun Kwon),이예현(Ye Hyun Lee),김해민(Hae Min Kim),김종민(Jong Min Kim),정현석(Hyun Suk Jung),이승림(Seung Rim Yi) 대한정형외과학회 2017 대한정형외과학회지 Vol.52 No.2

목적: 견봉 하 국소주사 요법으로 ketorolac과 corticosteroid의 효과를 비교 분석하고자 하였다. 대상 및 방법: 견관절 충돌 증후군으로 진단된 환자 20명에게 ketorolac 60 mg을, 또 다른 20명에게 triamcinolone 40 mg을 주사하고, 시간에 따른 시각적 통증 점수(visual analogue scale, VAS), 관절 운동 범위(range of motion, ROM) 및 Constant-Murley score를 측정하여 후향적인 방법으로 비교, 분석하였다. 결과: VAS는 주사 4주 후, 두 군 모두에서 감소된 소견을 보였으나 corticosteroid군에서 ketorolac군에 비하여 유의하게 더 감소된 소견을 보였고(p=0.001), 12주 후에는 두 군 간의 차이가 없었다(p=0.707). Constant-Murley score는 두 군 모두에서 향상되었으며 유의한 차이가 없었다(p=0.677). ROM 역시 두 군 모두 향상되었으며, 외회전의 경우 ketorolac군이 corticosteroid군보다 유의하게 향상되었다(p=0.005). 결론: 당뇨 등의 기저 질환이나 반복되는 주사 치료로 인한 부작용이 우려될 경우, ketorolac은 견봉 하 스테로이드 국소주사 치료에 대한 대안이 될 수 있을 것으로 생각된다. Purpose: The purpose of this study was to compare the clinical results between the subacromial injection of the ketorolac and that of the corticosteroid in patients with subacromial shoulder impingement syndrome. Materials and Methods: Twenty patients with shoulder impingement syndrome received an injection of 60 mg ketorolac and were evaluated in terms of visual analogue scale (VAS), range of motion (ROM) and Constant-Murley score. The outcomes are compared with the data of patients treated by 40 mg triamcinolone injection, retrospectively. Results: There was no significant difference in the demographics, VAS, ROM, and Constan-Murley score between the two groups before the injection. At the 4 weeks follow-up, pain improvement was significantly greater in the corticosteroid group (2.7±1.53) than in the ketorolac group (4.9±2.08; p=0.001). However 12 weeks after the injection, there was no significant difference in pain improvement between the two groups (ketorolac: 2.9±2.32, corticosteroid: 2.6±1.82; p=0.707). The Constant-Murley score at the final follow-up improved from 33.5 to 52.1 in the corticosteroid group, and from 39.0 to 56.6 in the ketorolac group (p=0.677). ROM was increased in both groups, and external rotation was significantly greater in the ketorolac group than in the corticosteroid group at the final follow-up (ketorolac: 29.3°±9.90°, corticosteroid: 20.8°±7.99°; p=0.005). Conclusion: In this study, ketolorac provided an effect equivalent to triamcinolone in the treatment of subacromial shoulder impingement syndrome at 12 weeks after the injection. This result could offer better opportunities to manage patients with diabetes or local and systemic side effects of repetitive use of corticosteroids.