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.

실용음악 전공 학생들의 발성치료 전후 성대 및 음성 특성 비교

황연신,심미란,김철준,최용석,김상연,최찬호,선동일,Hwang, Yeon Shin,Shim, Mi Ran,Kim, Chul Jun,Choi, Yong Suk,Kim, Sang Yeon,Choi, Chan Ho,Sun, Dong Il 대한후두음성언어의학회 2016 대한후두음성언어의학회지 Vol.27 No.2

Background and Objectives : Many students major in applied music singing have various difficulties in phonation when they sing or perform. But the studies about this cause are lack. The purpose of this study is whether singing voice therapy based on vocal music is effective or not to applied music singing students that have difficulties in phonation. Materials and Methods : Singing voice therapy program had been done to 8 students major in applied music singing during 7 weeks. We did laryngeal stroboscope, perceptual, acoustic and aerodynamic examination before and after singing voice therapy to this students. And we studied post examination results have differences or improvements compared to pre examination results. Results : Four male students don't have effective improvement after singing voice therapy but they shows slight improvement in aerodynamic examination values compared to pre examination values. Four female students shows improvement in aerodynamic examination values and pitch range increasing. Above all, one student's vocal nodules disappeared after singing voice therapy. Conclusion : Singing voice therapy based on music singing is very effective to the students major in applied music singing. Above all, their curriculum in applied music singing should include phonation training based on music singing before training perform and technic practices.

인체 유방암종에서 Cyclic-Dependent Kinase Inhibitor, p27^Kip1 발현의 의의

송상용,김덕환,서연림,고영혜,김대식,남석진,양정현 대한병리학회 1998 Journal of Pathology and Translational Medicine Vol.32 No.12

일본·대만기업의 대중국 직접투자 동향과 한국기업의 대응전략 : Current Trends and Strategy

성용모 淸州大學校 産業經營硏究所 2005 産業經營硏究 Vol.28 No.1

프레탈정 (실로스타졸 100mg)에 대한 실로스탄정 (한국유나이티드 제약)의 생물학적 동등성

용철순,이경희,최진석,박병주,정세현,김용일,박상만,유봉규,이종달,최한곤 한국병원약사회 2003 병원약사회지 Vol.20 No.2

Bioequivalence of one cilostazol tablets, the Pletaal^(R)(Korea Otsuka Pharmaceutical Co., Ltd.) and Cilostan^(R)(Korea united Pharmaceutical Co., Ltd.), was evaluated according to the guideline of KFDA. Sixteen normal male volunteers(age 20~30 years old)were divided into two groups and a randomized 2×2 cross-over study was employed. After one tablet containing 100㎎ of cilostazol were orally administered, blood was taken at predetermined time intervals and the concentration of cilostazol in plasma was determined with an HPLC method using UV detector. The pharmacokinetic parameters(C_(max), T_(max) and AUC_(t)) were calculated and ANOVA was utilized for the statistical analysis of parameter. The results showed that the differences in C_(max), T_(max) and AUC_(t) between one tablet were 16.08%, 18.88% and 17.57%, respectively. The powers (1-β) for C_(max), T_(max) and AUC_(t) were 85.03%, 83.92% and 80.12%, respectively. Detectable differences(Δ) and confidence intervals were all less than 20%, and confidence interval of all the parameters were also less than 20% at the significance level(α) of 0.05. All of these parameters met the criteria of KFDA for bioequivalence, indicating that Cilostan^(R) tablet is bioequivalent to Pletaal^(R) tablet.

Drosophila immigrans Sturtevant에 있어서 同所集團과 異所集團의 性的隔離

成耆昌,金容圭,金溶聲 성균관대학교 기초과학연구소 1989 論文集 Vol.40 No.2

한국 Drosophila immigrans 집단의 유전적 구조를 밝히는 연구의 일환으로 5개집단(설악, 대전, 광주, 부산, 제주)을 대상으로 pair-mating시켜 "dissection of sperm"방법을 이용하여 동소집단과 이소집단의 성적격리를 실험하였다. 본 실험의 결과는 다음과 같다. (1) 한국 D. immigrans 집단의 경우 동소집단의 성적격리도가 이소집단보다 높았으며 Ehrman & Parsons^17,18)과는 상반되는 결과를 보였다. (2) 지리적격리가 성적도태 요인이 되지 않는 것 같다. (3) 한국 D. immigrans 집단의 평균성적격리도는 지금까지 조사된 어느 집단보다도 낮았다. (4) 집단간의 성적격리도는 통계적으로 유의한 차를 보였다. (5) 한국 D. immigrans 집단의 성적격리는 "founder effect"로 설며하는 것이 타당하나, 환경여건 및 "habitat selection"에 의해 일어나는 현상도 결코 배제할 수 없을 것 같다. (6) isofemale 계통에 관한 계속적인 연구가 행하여지는 경우, 한국 D. immigrans 집단의 성적격리에 의한 진화문제에 좋은 자료가 될 것으로 기대한다. In order to clarify the genetic structure of Korean populations of Drosophila immigrans, the natural populations of D. immigrans were sampled at 5 localities (Mt. Sorak, Daejon, Kwangju, Pusan, Jeju isl.). By pair-mating and dissection of sperm, sexual isolation in sympatric and allopatric populations was analyzed. The results are as follows: 1. Sexual isolation of sympatric populations is higher than that of allopatric populations and it is opposed to the results of Ehrman and Parsons.^17,18) 2. The degree of isolation does not depend upon the geographic distance. 3. It was noted that the average isolation indices observed in Korean populations of D. immigrans were low as compared with those of several populations of D. immigrans by other workers. 4. Statistically significant sexual isolation occured between populations. 5. It is suggested that the maintenance of sexual isolation in Korean populations of D. immigrans be due to "founder effect" and cannot be excluded that it is due to environmental conditions and "habitat selection". 6. The detailed study of isofemale strains will give an idea of the potential for evolution of sexual isolation in Korean populations of D. immigrans.

"질적 자료 수집" 에 대한 토론

성용구 한국교육인류학회 1999 교육인류학연구 Vol.2 No.2

발표자의 글은 자신이 박사학위 논문을 작성하면서 직접 경험한 생애사 연구("원불교 수행과정의 교육학적 해석")의 자료 수집 과정을 구체적으로 제시함으로써, 질적 연구에서 자료 수집에 대한 이론적 탐색과 더불어 연구의 실제 과정에 기초하여 살아 있는 자료 수집의 과정을 보여 주었다는 점에서 가치를 찾을 수 있었고, 발표자의 이러한 작업은 질적 연구에 관심을 가지고 연구를 수행하려는 사람들에게 실제적으로 매우 유용한 길잡이가 될 수 있다는 의미를 토론자는 발견하였다.

Study on Microstructure and Mechanical Properties of the Al–25Cr–5Si (at%) Alloy Powder Using Gas-Atomization and SPS Process

Yong‑Ho Kim,Hyo‑Sang Yoo,Jeong‑Han Lee,Ik‑Hyun Oh,Hyun‑Kuk Park,Hyeon‑Taek Son 대한금속·재료학회 2021 METALS AND MATERIALS International Vol.27 No.7

In order to investigate the microstructure and mechanical properties on Al–25Cr–5Si (at%) alloy, a mixed powder with pureelements and an alloy powder using a gas atomization process were used. Fine and high purity Al–25Cr–5Si (at%) alloypowder was successfully prepared by gas atomization and densified using a spark plasma sintering (SPS) process. The overallpowder size distribution of the mixed Al, Cr, and Si elemental powders was in the range of 10–15 μm. The atomized Al–Cr–Sialloy powder was fine and spherical in morphology and difficult to be formed by intermetallic formation. Densification wasclearly confirmed at 1000 °C, with almost isolated pores formed, by clear removal of pores between particles, deformationof particles, an increase in the number of contacts, and a change in size between particles. As a result of XRD analysis ofthe sintered compacts, single phase was observed using the mixed powder, but the compact using gas atomization remainedthe alloy phase even at the process temperature. The Vickers hardness of the compacts by mixed powder was observed at59.70 Hv and the compact using gas atomized powders on the temperature 1000 °C of the Vickers hardness increased to702.6 Hv. The compressive yield strength of the compact with mixed powder was 195.24 MPa and the compressive strengthof the compact with gas atomized powder increased to 802.07 MPa. It is considered not to be decomposed by the AlCrSi,Al13Cr4Si4and Al8Cr5phases sintering process, resulting from the improvement of mechanical properties.

대뇌실질에 발생한 포도낭미충증 -증례 보고-

김상진,김진용,박상근,고원규,신형식,황용순 대한신경외과학회 1999 Journal of Korean neurosurgical society Vol.28 No.9

1980년대 후반 한국대학생들의 저항적 행동경향

성용구 大邱敎育大學校 1993 論文集 Vol.28 No.-