A Multi-Center Educational Research Regarding Breastfeeding for Pediatrics Residents in Korea

Yong Sung Choi,정성훈,김은선,Eun Sun Kim,Eunhee Lee,Euiseok Jung,So-Yeon Lee,이우령,Hye Sun Yoon,Yong Joo Kim,Ji Kyoung Park,Son Moon Shin,Ellen Ai-Rhan Kim 대한신생아학회 2022 Neonatal medicine Vol.29 No.1

Purpose: Pediatricians have a significant responsibility to educate mothers about the importance of breastfeeding. However, there have been minimal efforts in the courses of resident training in Korea. The purpose of this study is to evaluate the change in knowledge and attitude before and after a 4-week breastfeeding educational intervention among multicenter residents. Methods: Prospective interventional educational research was designed for residents at eight training hospitals in Korea. Institutional reviews were obtained in each hospital. The education curriculum consisted of 14 courses regarding breastfeeding theory and practice. These materials were used to teach pediatric residents for 4 weeks. Knowledge-based tests were administered before the course, and re-tests were administered after the course using different test items of similar levels. Test scores and survey responses were compared before and after the intervention. Results: A total of 73 residents (1st year 20, 2nd year 23, 3rd year 16, and 4th year residents 14) from eight training hospitals completed the intervention. Their average age was 30.3±2.9 years, 17 (23.3%) were male, 22 (30.1%) were married, and eight had more than one child of their own. The mean pre-test score was 61.8±13.4 and the mean post-test score was 78.3±7.5 (P<0.001). The inter-grade difference in the score was significant in the pre-test (P=0.005), but not significant in the post-test (P=0.155). There were more responses of obtaining confidence after the intervention (P<0.001). Conclusion: In our study, pediatric residents showed improvement in their knowledge and confidence level after 4 weeks of the breastfeeding curriculum. This will provide a basis for future policymaking in the training of pediatric residents regarding breastfeedReceived: 6 January 2022 Revised: 15 February 2022 Accepted: 15 February 2022 Correspondence to: Ellen Ai-Rhan Kim, MD Department of Pediatrics, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea Tel: +82-2-3010-3390 Fax: +82-2-3010-6978 E-mail: arkim@amc.seoul.kr A Multi-Center Educational Research Regarding Breastfeeding for Pediatrics Residents in Korea Yong-Sung Choi, MD,PhD1, Sung-Hoon Chung, MD, PhD2, Eun Sun Kim, MD, PhD3, Eun Hee Lee, MD4, Euiseok Jung, MD5, So Yeon Lee, MD, PhD5, Wooryoung Lee, MD6, Hye Sun Yoon, MD, PhD7, Yong Joo Kim, MD, PhD8, Ji Kyoung Park, MD, PhD9, Son Moon Shin, MD, PhD9, and Ellen Ai-Rhan Kim, MD, PhD5 1Department of Pediatrics, Kyung Hee University Hospital, Seoul, Korea 2Department of Pediatrics, Kyung Hee University Hospital at Gangdong, Seoul, Korea 3Department of Pediatrics, Kangwon National University Hospital, Chuncheon, Korea 4Department of Pediatrics, Korea University Anam Hospital, Seoul, Korea 5Department of Pediatrics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea 6Department of Pediatrics, Soonchunhyang University Seoul Hospital, Seoul, Korea 7Department of Pediatrics, Nowon Eulji Medical Center, Eulji University, Seoul, Korea 8Department of Pediatrics, Hanyang University Seoul Hospital, Seoul, Korea 9Department of Pediatrics, Inje University Busan Paik Hospital, Busan, Korea Neonatal Med 2022 February;29(1):28-35 https://doi.org/10.5385/nm.2022.29.1.28 pISSN 2287-9412 . eISSN 2287-9803 Copyright(c) 2022 By Korean Society of Neonatology This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http:// creativecommons.org/licenses/by-nc/4.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Original Article 29 Neonatal Med 2022 February;29(1):28-35 https://doi.org/10.5385/nm.2022.29.1.28 ing in Korea.

구강 내 디지털 인상채득을 통한 맞춤형 지대주와 시멘트 합착 후 나사형 임플란트 보철 수복 증례

홍용신,박은진,김선종,김명래,허성주,박지만 대한치과보철학회 2012 대한치과보철학회지 Vol.50 No.1

최근 디지털 인상채득 시스템이 개발되면서 이를 기존의 CAD/CAM 시스템과 접목한 인레이, 온레이, 크라운이나 간단한 계속가공의치 등의 고정성 보철물의 제작이 활발히 소개되고 있다. 그러나 임플란트 보철에서는 주로 기존의 아날로그식 인상채득 후 이를 스캔하여 제작하는 방법이 사용되어 왔으나, 구강 내 디지털 스캔한 데이터를 이용하여 나사형 보철물을 제작하는 술식은 아직 활발히 이루어지지 않았다. 이에 본 증례보고에서는 6명의 환자를 대상으로 구강 내 스캐너인 iTero를 사용하여 디지털 스캔을 시행한 후 그중 다섯명은 맞춤형 지대주와 시멘트 합착 후 나사형 임플란트 보철물(screw-retained implant prosthesis after cementation, or SCRP)을 제작하였고, 임상적으로 기능과 심미적인 측면으로 만족할 만한 결과를 얻었기에 이를 보고하고자 한다. Fixed dental prostheses such as inlay, onlay, crown, and bridge fabricated by CAD/CAM technique combined with digital impressions is getting popular due to the recent rapid progress of digital impression taking system. For the scope of implant prosthesis, however, digital intra-oral scan hasn’t been actively utilized for the fabrication of superstructures. In this case report, 6 cases of titanium-milled custom abutment based on the iTero intra-oral scan data were introduced, five of them were restored with screw-type prosthesis after cementation (SCRP) and the clinical results were satisfactory on restoring the function and esthetics.

현훈 환자 Neuron Specific Enolase의 임상적 의의

김원주,김선곤,유철형,김원찬,김용덕,최영철,이명식 대한신경과학회 1998 대한신경과학회지 Vol.16 No.4

세라믹 섬유필터를 이용한 디젤 입자상물질 배출저감에 관한 기초연구

주용남,홍민선,문수호,이동섭,임우택 한국대기환경학회 2003 한국대기환경학회지 Vol.19 No.3

Works were focused on back pressure characteristics of ceramic fiber filter on DPF(Diesel Particulate Filter) system and experiments were performed to select appropriate filter which can filter particulates. Filters were installed on metal-support tube which has openings for exhaust as flow. Ceramic fiber filters with high specific surface area and adequate high temperature strength are commercially available for filtration of diesel particulates and in-situ hot regeneration. Thus, ceramic blanket and ceramic board which are used as insulating media were applied to filter and filteration apparatus was installed on exhaust as line connected to 2.0L diesel engine. Alternating filter structure to adapt DPF system, collection efficiency test of diesel particulates was measured. In case of ceramic blanket, pressure drop was low, caused by the destruction of soft structures. Also, particulate collection efficiency was decreased depending on loading time. In case of ceramic board, structure design was altered to reduce back pressure on DPF system. Structure design was altered to induce Z-flow by making 10mm and 5mm holes on the surface of media. Alteration of 5mm hole showed that media have low back pressure but particulate collection efficiency was 77%, while 10mm hole showed that of 90%.

기체크로마토그래피를 이용한 산양삼,백삼,홍삼중의 농약잔류 분석

맹주양;이용구;이숙재;정진아;김정미;김선화;김송아 순천향대학교 기초과학연구소 2010 순천향자연과학연구 논문집 Vol.16 No.2

Commercial Korean ginseng-Ginseng cultivated in mountains(GCM), White Ginseng (WG), and Red Ginseng (RG) - were used, respectively, to analyze the pesticide residues in them. The selected pesticides for the analysis of residue were procymidone and tolclofos-methyl. Procymidone residue was no detected in all of them and tolclofos-methy residue was shown as follows: RG(0.270ppm)>GCM(0.0541ppm)>WG(0.007ppm).

추출조건에 따른 다시마 추출액의 특성에 미치는 물리적 특성의 영향

허상선,정재용*,박영호,주길재,최용희* 경북대학교 농업과학기술연구소 1999 慶北大農學誌 Vol.17 No.-

The objective of this research was to characterize viscosity of sea tangle extract isolated from sea tangles in Korea to obtain basic data for production of dietary fiber materials with new functional properties. The viscosity of sea tangle extract was increased as the the extraction time increased. However, these values increased inginficantly up to 1 hour of extraction time and then slow increased in case of hot water extraction and enzymatic hydrolyzed sea tangle extract. As for addition of sugar and salts, the values of viscosity of sea tangle extract was very low in the additon of EDTA-2Na regardless of concentration. But in case of sucrose and NaCl, the viscosity of sea tangle extract were tended to decreased up to 2.5% concentration.

정신분열병 환자의 인터류킨-2 생산능

이선미,박주홍,김동인,은헌정,김임,김경용 大韓神經精神醫學會 1996 신경정신의학 Vol.35 No.4

급성기 및 관해상태의 정신분열병 환자와 정상 대조군의 IL-2 생산능을 비교함으로써, 정신분열병의 여러 발병원인 중 자가면역 병인론의 증거인 세포성 면역방응의 저하 및 질병상태와 관련한 세포성 면역기능의 변화를 일부 한국인 정신분열병 환자에서 조사에서 조사하고자 하였다. 방 법 : DSM-IV의 정신분열병 진단기준에 적합한 급성기 환자 19명(남 : 10, 여 : 9)과 관해상태의 환자 21명(남 :12, 여: 9) 및 정상대조군 40명(남 : 20, 여 : 20)을 연구대상으로 하였다. 피험자로부터 채혈한 혈액에서 임파구를 분리하여 phytohemagglutinin으로 T임파구를 자극하고 세포배양하여 증식시킨후 IL-2immunoassay kit을 이용하여 T임파구의 IL-2 생산능을 측정하였다. 결 과 : IL-2 생산능은 성별에 관계없이 정신분열병 환자군에서 정상 대조군에 비하여 유의하게 감소하였다. (t=5. 97, p<0.001). 질병상태에 따라 급성기 정신분열병 환자군 및 관해상태 정신분열병 환자군으로 구분하여 정상대조군의 IL-2 생산능과 비교한 결과, IL-2 생산능이 정상 대조군에서 가장 높았고 다음은 관해상태 환자군이었으며 급성기 환자군에서 가장 낮았다. 세 군 사이에는 모두 유의한 차이가 있었다. (F=35.35, p<0.001). 결 론: 일부 한국인 정신분열병 환자에서 질병상태와 유의하게 관련된 세포성 면역기능의 저하가 관찰되며, 이는 정신분열병의 다양한 원인중 자가면역 기전에 의한 발병을 시사한다. Objects : This study was designed to examine the decreased cellular immune response and the change in cellular immunity related to to clinical status in Korean schizophrenic patients. Methods : The subjects were 19 acute schizophrenics and 21 remitted schizophrenics who met the DSM-IV criteria of schizophrenia and 40 healthy volunteers as the normal control. After the lymphocyte was separated from blood which had been drawn from the subjects and then T lymphocyte was stimulated by PHA and proliferated by cell culture, the examiner measured IL-2 productivity by IL-2 immunoassay kit. Results : IL-2 productivity of the schizophrenics was significantly lower than that of the normal controls. There was no significant difference between male and female in two groups. In the comparison by clinical status, acute schizophrenic group was the lowest, remitted schizophrenic group was next, and normal control group was the highest in the IL-2 productivity, with statistically significant difference among the groups(p<0.001). Conclusion : We suggest that there is a decrease in the cellular immune response which is significantly related to clinical status in some Korean schizophrenics. This finding supports that onset of schizophrenia may be the result of autoimmune mechanism, which is one of the various etiologic factors in schizophrenia.

백서 뇌에서 전기경련 충격에 의해 발현이 조절되는 새로운 유전자

정선주,박정은,강웅구,구영진,박주배,김용식 大韓神經精神醫學會 2000 신경정신의학 Vol.39 No.5

연구목적: 이 연구는 백서 뇌에서 전기경련 충격(Electroconvulsive shock, ECS)에 의해 발현이 조절되는 새로운 유전자를 검색하고, 발달단게 및 뇌 조직에 따른 발현양상을 관찰하기 위하여 시행되었다. 방법: 생후 7일, 21일된 어린 웅성 백서에 전기경련 충격을 가한 후 mRNS differential display-PCR(DD-PCR) 기법을 시행하여 발현의 차이를 나타내는 유전자를 검색한 후 서열분석을 실시하였다. 생후 7일 및 21일된 백서의 뇌와 성년 백서의 대뇌피질, 해마를 이용한 Northern blot 분석을 시행하여 검색된 유전자의 ECS 처치 후 시간경과에 따른 유전자 발현양상을 관찰하였다. 결과: ECS 처치군과 위충격군간에 발현의 차이를 나타낸 유전자 4개를 검색할 수 있었으며, 이중 ECS에 의해 발현이 증가되는 1개의 유전자를 선정하여 서열분석을 실시한 결과 EST 서열만이 보고된 새로운 유전자임이 밝혀졌다. 이 유전자는 생후 7일된 백서의 뇌에서는 ECS 처치 후 180분에 발현양의 증가가 최고치에 도달하였으나, 생후 21일된 백서의 뇌와 성년백서의 대뇌피질 및 해마에서는 360분 경과시까지 지속적으로 발현 양이 증가하였다. 결론: 이같은 결과는 ECS에 의해 생체 내에서 유전자 발현의 조절이 이루어짐을 시사하며, 향후 이러한 유전자의 세포 내 기능에 관한 연구를 시행함으로써, ECS에 의한 생체의 반응과 치료기전에 대한 이해를 넓힐 수 있을 것으로 기대된다. 중심단어:전기경련 충격·DD-PCR·유전자·백서 뇌. Objectives: This study was performed to identify genes regulated by electroconvulsive shock (ECS) and to observe the pattern of expression of genes according to different developmental stages and brain regions. Method: ECS(130V, 0.5 sec) was given to male Sprague-Dawley rats with age of postnatal day 7 and 21(P7, P21 respectively). After screening genes regulated by ECS with mRNA diffe-rential display-PCR(DD-PCR), we selected one clone among them and observed the induction of this gene after ECS by time-dependent Northern blot analysis of rat brain of P7, P21 and adult rat cortex and hippocampus. Results: By DD-PCR method, we have identified four clones whose expression was regulated by ECS. Among them, one(CP 10-2) was proved to be a new gene by sequencing and BLAST search. Its expression was increased after ECS in P7, P21, and adult rat brain. The expression of CP 10-2 reached peak level at 180 minutes after ECS in P7 rat brain, but was further increased until 360 minutes after ECS in P21 and adult rat brain. Conclusion: In this study, a new gene was identified in rat brain which showed up-regulated expression in response to ECS. Cloning and characterization of this new gene would be helpful to elucidate the effect of ECS in rat brain. KEY WORDS:Electroconvulsive shock·Differential display-PCR·Gene·Rat brain.

웹 카메라를 이용한 시설 내 국화생산 광 환경 원격 모니터링

정선옥(Sun-Ok Chung),김용주(Yong-Joo Kim),이규호(Kyu-Ho Lee),성남석(Nam-Seok Sung),이철휘(Cheol-Hwi Lee),노현권(Hyun-Kwon Noh) 충남대학교 농업과학연구소 2015 농업과학연구 Vol.42 No.4

Increase of national family income improved demand of high-quality and year-round horticultural products including chrysanthemum. To meet these demand, farmers have introduced protected facilities, such as greenhouses, of which environmental conditions could be monitored and controlled. Environment management up to three weeks after transplanting is critical for chrysanthemum quality. Artificial lighting and light-blocking screen are especially important for long-day (day period > 13 hours) and short-day (night period > 13 hours) treatments. In this study, a web-camera was installed, and the image was obtained and transmitted to mobile phones to monitor the status of 3-wavelength(RGB) lighting environments. RGB pixel values were used to determine malfunctioning of the lighting lamps, and leaking out and incoming illumination status during short-day and long-day treatment periods. Normal lighting lamps provided RGB pixel values of 240~255. During long-day treatment period, G pixel values were useful to detect abnormal lighting conditions (e.g., leaking). During short-day treatment period, R pixel values were useful to determine incoming light (e.g., sun-light). Results of this study would provide useful information for remote monitoring of light conditions for protected chrysanthemum production under artificial lights.

정신분열병 환자의 인터류킨-2 생산능

김경용,김임,박주흥,은헌정,김동인,이선미 예수병원 1997 예수병원학술지 Vol.18 No.-