자연 유산의 염색체 이상과 질식 초음파검사 소견과의 관련성에 관한 연구

정경아(Kyung Ah Jeong),강태정(Tae Jung Kang),한지은(Jee Eun Han),이경순(Kyung Soon Lee) 대한산부인과학회 2001 Obstetrics & Gynecology Science Vol.44 No.2

Objective : To investigate the importance of transvaginal ultrasonographic findings of spontaneous abortion and the relation of transvaginal ultrasonographic finding and the karyotype of abortus. Materials and Methods : Transvaginal sonography was undergone to 48 subjects with spontaneous abortion in their early pregnancies who had visited Ewha Womans University Mokdong Hospital, from March 1996 to June 1999. A chromosome analysis of their aborted products was done. Results : The frequency of chromosome abnormalities of abortus was 47.9%. Among the chromosomal abnormalities, trisomy was 31.2%(simple trisomy 27.0%, double trisomy 4.2%), monosomy X 8.4%, poliploidy 8.4%(tripoidy 4.2%, tetraploidy 4.2%). The average maternal age for trisomy was 30.2±4.9, and their past number of spontaneous abortions was 1.0±0.9, with trisomy 16 most frequent with 23.0%. In the case with trisomy 5, 22, and double trisomy, the average maternal age was increased with 38.0, 36.0±2.8, 35.5±5.0, respectively. However, no significant relevance could be found. The average maternal age for polyploidy was 30.5±3.7, and their past number of spontaneous abortions was 1.0±2.0. No significant relevance could be found compared with normal karyotypes. The average maternal age for monosomy X was 27.5±1.7, which is lower than the average maternal age for normal karyotypes, but not significantly so. The mean number of past abortions was no different with 1.0±0.8. No significant relevance could be found between ultrasonographic findings and chromosomal abnormalities. The measured/expected crown-rump length ratio of the aborted group was smaller than those of the control group. Conclusion : Serial ultrasonographic findings in early pregnancies help to diagnose spontaneous abortion, but not efficient to diagnose chromosomal abnormalities in the aborted group.

권두논문 : 미야자키 하야오의 『바람이 분다』에 드러난 "아름다움"과 "살아야 함"의 의미 연구

정경운 ( Kyung Woon Jeong ) 전남대학교 호남학연구원 2016 감성연구 Vol.0 No.12

이 글은 미야자키 하야오의 은퇴작이자 동시에 국내외에서 ‘군국주의 미화’ 논란을 일으켰던 < 바람이 분다 >를 다룬다. 작품을 둘러싸고 벌어진 논란과 감독의 제작 의중 사이에 상당한 간극이 있다고 판단, 작품의 핵심 키워드인 ‘아름다움’과 ‘살아있음’을 통해 작품 제작의 궁극적 의도가 무엇인지를 찾아보고자 했다. 논란의 핵심과는 상관없이 미야자키는 <바람이 분다>의 주인공 호리코시 지로를 통해 ‘아름다움’의 본질로 육박해 들어가는 ‘예술가-장인’으로서의 삶의 방식을 말하고자 하는 것으로 보인다. 이를 좀 더 적극적으로 해석하자면, 미야자키는 모든 개인들이 각자의 삶을 마치 예술가-장인처럼 전력투구하며 살아갈 것을 우리에게 요구하고 있는 것으로 볼 수도 있다. 그 노력의 결과물이 의도치 않게 역사적 파국에 직결된다 하더라도, 이는 개인이 책임질 수 없는 불가항력의 문제이다. 그런 상황에서 개인이 결국 할 수 있는 일이란 ‘인간이기를 포기하지 않고 사는 것’뿐이다. 단지 곤혹스럽게 살아가는 것만이 우리가 할 수 있는 일인 것이다. 호리코시 지로에게 최종적으로 남은 메시지 ‘살아라’는 바로 이런 의미이다. 이런 점에서 <바람이 분다>에 대해 단순히 전쟁의 미화나 역사적 탈맥락화 등을 논란거리로 삼는 것보다, 우리들의 논의는 미야자키의 세계 이해 방식과 관련된 훨씬 더 근본적인 질문으로 전환되어야 할 필요가 있다. This paper covers Hayao Miyazaki``s swan song < The Wind Rises >, which provoked controversy over ``beautification of militarism`` in Korea and overseas. Considering that there is a substantial gap between the controversy over the film and the director``s intention for production, this paper aims to determine the ultimate intention for making this film through its keywords ``beauty`` and ``being alive.`` Regardless of the point of controversy, it seems that Miyazaki wants to talk about the lifestyle as an ``artist-artisan`` on the verge of the essence of ``beauty`` through Jiro Horikoshi, the hero of <The Wind Rises>. More specifically, it seems that Miyazaki requests all individuals to make the utmost efforts in life like an artist-artisan. Even if the outcome of such efforts unintentionally leads to historical catastrophe, this is just an irresistible force for which an individual cannot be responsible. In the end, the only thing an individual can do in this situation is to ``live without giving up being human.`` Living with perplexity is the only thing we can do. This is what ``Live,`` the final message left for Jiro Horikoshi, actually means. In this sense, < The Wind Rises > is a text that raises a much more fundamental question than controversies over beautifying war or decontextualizing history.

고강도 및 고열전도성을 가지는 메탈 구조체 기반 배연탈질 촉매에 대한 탈질 성능평가

정경철(Kyung Chul Jeong),박대원(Dae-Won Park),임동하(Dong-Ha Lim) 한국에너지기후변화학회 2018 한국에너지기후변화학회 학술대회 Vol.2018 No.11

일부지역 치과위생사의 심폐소생술관련 지식과 태도에 대한 연구

정경이 ( Kyung Yi Jeong ),하명옥 ( Myung Ok Ha ) 한국치위생학회 2014 한국치위생학회지 Vol.14 No.5

Objectives : The purpose of this study is to investigate the knowledge and attitude toward cardiopulmonary resuscitation(CPR) in some dental hygienists. Methods : A self-reported questionnaire was filled out by 207 dental hygienists in Gwangju from February to March, 2014. The questionnaire consisted of knowledge and attitude toward CPR dental hygienists. The data were analyzed using IBM SPSS 19.0 program for chi-square test, independent t-test, one-way ANOVA and multiple regression analysis. Results : Dental hygienists having basic life support(BLS) provider accounted for 16.9%. CPR knowledge was 8.40 and attitude was 3.59 points. There were positive correlations between CPR knowledge and attitude including education, performance, and confidence(r=.231, r=.207, r=.377). In the regression analysis, attitude toward CPR confidence were positively associated with BLS provider certificate within two years. Conclusions : Dental hygienists had low level of knowledge and confidence toward CPR. It is important to educate BLS provider course to the dental hygienists.

코 끝에 발생한 피부 기저양 편평세포암

정경묵 ( Kyung Muk Jeong ),전지현 ( Jiehyun Jeon ),김애리 ( Aeree Kim ),송해준 ( Hae Jun Song ),백유상 ( Yoo Sang Baek ) 대한피부과학회 2020 大韓皮膚科學會誌 Vol.58 No.3

일부지역 치과위생사의 기본심폐소생술에 대한 태도 및 영향요인 분석

정경이 ( Kyung Yi Jeong ),조민정 ( Min Jung Cho ) 한국치위생학회 2015 한국치위생학회지 Vol.15 No.5

Objectives: The aim of the study was to investigate the attitude and influencing factors toward basic life support in the dental hygienists. Methods: A self-reported questionnaire was completed by 218 dental hygienists in Gwangju. The questionnaire consisted of the general characteristics of the subjects and attitude toward basic life support (BLS). The attitude included cognitive belief, behavioral components, and emotional components. The data were analyzed by independent t-test, one-way ANOVA and multiple regression analysis by using IBM SPSS 21.0 program. Results: The cognitive belief, behavioral component, and emotional components of attitude toward BLS had higher scores in those who were between 34-34 years old and had more than 10 years of career. Most of them worked in dental clinic and did not earn the BLS certificate. There were positive correlations between the cognitive belief, behavioral components, and emotional components toward BLS. By the regression analysis, cognitive belief toward BLS was positively associated with educational experience within a year, behavioral components, and emotional components. The behavioral components were associated with working between 5-10 years in dental clinic and the emotional components. Conclusions: The attitude toward BLS in the dental hygienists was low in cognitive belief, behavioral components, and emotional components. Therefore, BLS education must be expanded to the dental hygienists.

악교정 수술이 요구되는 골격성 II급 성인의 설측 절충 치험례

정경소(Kyung-So Jeong),이수현(Su-Hyun Lee),이언화(Eon-Hwa Lee) 대한치과교정학회 2021 대한치과교정학회 임상저널 Vol.11 No.4

As an esthetic demand is becoming greater, more people are seeking for orthodontic treatment. However, patients do not want to show their brackets or any orthodontic appliance during treatment. Therefore, lingual orthodontic treatment is one of the options to satisfy these patient’s demands. This case was about the treatment of a 26-year-old male with skeletal Class II malocclusion, severe lip protrusion and retruded chin. Both maxillary 1st premolars and a mandibular right incisor were extracted. By using temporary skeletal anchorage devices (TSADs), enough retraction of the maxillary anterior dentition and intrusion of the mandibular anterior dentition was achieved. With the help of TSADs, proper occlusion and esthetic profile were achieved without any surgical procedures.

나트륨-물 반응에 의한 전열관 표면에서의 부식과 반응특성에 대한 연구

정경채 ( Kyung Chai Jeong ),정지영 ( Ji Yong Jeong ),김병호 ( Byung Ho Kim ),김태준 ( Tae Joon Kim ),최종현 ( Jong Hyeun Choi ),김의식 ( Eui Sik Kim ) 한국공업화학회 2003 공업화학 Vol.14 No.1

본 연구에서는 증기발생기 전열관 재질로 예상되는 페라이트 강을 사용해서, 액체 나트륨 분위기에서 미량 물누출 실험을 수행하여, 시편의 누출 부위와 표적표면에서 발생되는 재질의 부식현상. 나트륨-물 반응에 의한 온도 상승현상 등에 대한 특성을 관찰하였다. 실험결과, 시편의 누출구멍 주변은 나트륨부위에서 나트륨-물 반응에 의해 발생되는 부식 및 침식에 의한 wastage 현상에 의해 손상을 입어 누출 구멍의 직경이 확대되었으며, 누출 부위에서의 손상은 초기 누출구멍 크기인 150㎛에서 200㎛정도로 확대되었고, 표적표면에 나타난 손상부위의 크기는 약 1000㎛ 정도로 분석되었다. 또한, 표적표면에서의 온도는 나트륨-물 반응에 의해 형성되는 반응열에 의해 약 70-80℃ 정도 상승하였으며, 손상부위 표명을 EPMA 및 EDX로 분석한 결과, 나트륨 산화물과 전열관의 모지 금속을 구성하는 Fe이나 Cr 등의 원소와 반응하여 (NaOH+Na_2O)ㆍFe_xO_y나 (NaCrO_2+Na_2Cro_4) 같은 형태의 복합산화물을 형성하는 것으로 판명되었다. In this study we observed and analyzed the corrosion phenomena in a leak site and he effect of temperature at the target surface of heat transfer tube material by sodium-water reaction through water leakage in liquid sodium atmosphere. Surrounding of the leak hole of the specimen was damaged by the wastage phenomena due to corrosion and erosion of material, and the hole size, by damage of leak site, was extended from 150㎛to about 200㎛. Also, the damaged size appeared in the target surface was observed to be about 1000㎛ diameter. The temperature of target surface increased about 70~80℃ by the heat of sodium-water reaction even with a small leakage of 15mL water. From the results of EPMA and EDX analysis, damaged areas are found to be covered with complex compounds such as (NaOH+Na_2O)·Fe_xO_y or (NaCrO_2+Na_2CrO_4) mixed up with the sodium oxides by sodium-water reaction and the Fe or Cr element by matrix of tube material.

≪??雅集圖≫からみる??堂會の有樣―繪·詩·跋文の總合的な檢討を通じて―

정경진 ( Jeong Kyung-jin ) 동서대학교 일본연구센터 2017 次世代 人文社會硏究 Vol.13 No.-

本稿は、1764年朝鮮通信使行の際に大坂で制作された≪??雅集圖≫を取り上げ、その中の繪·詩文·跋文を總合的に分析したものである。朝鮮通信使行の歷史上、朝鮮側の者が日本人に繪卷制作を依賴した事例は、他に例をみないということからも、本雅集圖の制作と贈答は興味深いものと言える。本稿では雅集圖の主題ともいえる詩社·??堂會に焦点を當て、雅集圖の構成要素、すなわち、繪·詩·跋文を總合的に分析していく。さらに、大坂での交遊の前年にあたる1763年に記された??堂會の?「草堂會約」の內容と雅集圖の序文、詩を見比べることで、京坂文人の交遊の有樣を浮き彫りにする。まずは、雅集圖の跋文の內容を分析してから、繪と詩に表されている視覺イメ一ジと??堂會の有樣を浮き彫りにする。最後に、雅集圖の詩と「草堂會約」の內容を比較し、??堂會という18世紀の文人詩社の交遊の有樣を明らかにする。雅集圖の跋文で大典が强調した、盟主·??堂の「禮」と「和」の詳細についても考察することができた。さらにいえば、本稿の考察は、??堂會の終焉が混沌社の發足にどのように結びついていったのかを考える一つの手がかりになった。それは雅集圖が朝鮮の文人のために制作されたことの意義に加え、本雅集圖が日本の文人集いの樣相を理解する上でも有效な資料である、ということを意味する。同時代の日本と朝鮮の文人たち間に、共通する「文人世界のイメ一ジ」が存在していたことの證左であると言えよう。本考察の試みが今後、同時期の兩國文人の詩社の特質を考察する上で重要な絲口になることを確信する。 This paper provides a comprehensive analysis of the pictures, poems, and epilogue in Kenka`s Elegant Gathering(Kenka gashuzu) that was produced in Osaka during the 1764 Choson Communication Embassy to Japan. Given that there was no precedent in the history of such missions for the Koreans to commission the Japanese to produce a picture scroll, the production of this piece and its role in the gift exchange merits our attention. This paper focuses on the Kenkado kai, the salon of poets that is the main subject of the picture scroll, and provides a comprehensive analysis of the piece`s structural elements―that is, its pictures, poems, and epilogue. Moreover, the paper uncovers the nature of companionship among men of letters in Kyoto and Osaka by comparing the contents of the Kenkado kai`s “House Rules” (sodo kaiyaku), codified in 1763, one year prior to the Osaka exchange, with the preface and poems contained in the picture scroll. The paper begins by unveiling the visual imagery of the pictures and poems as well as the nature of the Kenkado kai, after analyzing the contents of the epilogue. Finally, the paper compares the piece`s poems with the contents of the “House Rules,” and clarifies the nature of companionship in the eighteenth-century salon of poets that was the Kenkado kai. The paper also considers in detail society leader Kimura Kenkado`s ideas on “propriety” and “harmony,” emphasized by Daiten Kenjo in his epilogue. Moreover, insights from the paper suggest a clue for considering how the disbandment of the Kenkado kai led to the founding of Konton shisha. Not only is this picture scroll significant because it was produced for Korean men of letters, but it also demonstrates how picture scrolls can serve as valuable sources for understanding various aspects of the gatherings between Japanese literary figures. This can only mean that there existed an “image of the literary men`s world” common to Japanese and Korean men of letters in this period. I hope that this inquiry will provide important clues for examining the characteristics of both Japanese and Korean salons of poets in this period.

고점성 모사용액 내 Carbon Black 입자의 분산특성

정경채 ( Kyung Chai Jeong ),엄성호 ( Sung Ho Eom ),김연구 ( Yeon Ku Kim ),조문성 ( Moon Sung Cho ) 한국공업화학회 2013 공업화학 Vol.24 No.2

An external gelation method in place of an internal gelation method applied to the fabrication process of an intermediated compound of Uranium Oxy-Carbide (UCO) kernel spheres for Very High Temperature Reactor (VHTR) fuel preparation is under development in Korea. For the preliminary experiments of the UCO kernel sphere preparation using an external gelation method, the carbon black dispersion experiments were carried out using a simulated broth solution. From the selection experiments of various kinds of carbon black through dispersion experiments in a viscous metal salt solution, Cabot G carbon black was selected owing to its dispersion stability, and the homogeneous dispersing state of carbon black particles in our system. For the effective dispersion of nano-size aggregated carbon black particles in a high viscous liquid, the carbon black particles in a metal salt solution were first de-aggregated with ultrasonic force. The mixed solution was then dispersed secondly by the use of the extremely high-speed agitation with a mechanical mixer of 6000 rpm after feeding the Poly Vinyl Alcohol (PVA) in the solution. This results in the broth solution with good stability and homogeneity alongside no further changes in physical properties.