奈良시대의 渡來系官人의 승진 -五位이상 귀족관인의 승진형태를 중심으로-

丁珍娥(Chung, Jin Ah) 일본사학회 2004 일본역사연구 Vol.21 No.-

The aim of this paper is to understand the aristocratic bureaucracy and society of ancient Japan by examining how the officials of overseas origins were promoted to and above the 5th rank in the Nara official hierarchy. As the system of legal codes (ritsuryo) was introduced and established, officials became promoted on merit. However, many people of overseas origins were excluded from the appointment of the government post. This promotion is not continued in the next era. During the reign of Emperor Shomu a new bureaucratic system called the naigaikai system was established. The new system required the people of overseas origins to be appointed to the posts below the 5th rank. Contrary to the previous system, the new system favored their talent. This led to a sharp rise in the number of their appointment. As the system became loosened, the number of people promoted above the fifth rank increased. This trend continued until the reign of Emperor Kammu. The new system favored those who had worked in the posts for a certain period of time. Many officials of overseas origins worked as scribes and were appointed above the fifth rank. The era of Fujiwara no Nakamaro marked a watershed in the history of official appointment of people of overseas origins. During this period the system of bureaucratic ranks were clarified. It continued to function during the second half of the Nara period and occupy the central position in the appointment and promotion of people of overseas origins.

전환학습을 통한 적응학습에서 임파워먼트와 네트워킹의 영향 및 팀 요인의 조절효과

정진아 ( Chung Jin Ah ),한태영 ( Han Tea Young ) 한국인적자원관리학회 2017 인적자원관리연구 Vol.24 No.2

Continuous learning activity of members in organizations contributes to organizational effectiveness in times of ever-changing demands(Arneson, 2006). Based on this viewpoint, the current study examined the process of continuous learning activities of service personnel and the process toward adaptive learning through transformative learning. At the individual level, psychological empowerment and networking were examined in terms of their effects on adaptive learning. At the team level, team learning climate and team knowledge characteristics were examined in the relationships between transformative learning and adaptive learning, as cross-level moderators. In order to test the research model, individual and team level surveys were conducted to 198 service personnel in 45 teams. AMOS was used to examine the model for the learning process, and HLM was used to analyze the moderation effects at the team level. The effect of psychological empowerment on adaptive learning through transformative learning was confirmed by partial mediation, whereas the effect of networking on adaptive learning through transformative learning was not significant. The moderating effects of the team learning climate and the team knowledge characteristics were significant in the relationship between the transition learning and the adaptive learning. Based on the results of the research, we provided theoretical and practical implications to stimulate the continuous learning activities.

성인 생체 간이식 수혜자에서 담도 외-배액관 잠그기 훈련 방법 비교

정진아,최혜란,Chung, Jin Ah,Choi, Hye Ran 한국중환자간호학회 2014 중환자간호학회지 Vol.7 No.1

Purpose: The propose of this study was to introduce the clamping protocols for a biliary external drainage tube and trace the results of using clamping protocols to prevent some possible biliary complications or enable their early detection in living-donor liver transplantation. Method: This study was a retrospective study to analyze the cases of 97 subjects who had undergone liver transplantation in a hospital in Seoul, Korea. Clamping protocol 1 was applied to 47 patients, and clamping protocol 2 was applied to 50 patients. Results: In the case of protocol 1, the success rate of the clamping protocol was 74.5%, while that of protocol 2 was 84.0%. However, there was no significant difference in the compiled statistics from authentic sources (p = .246). Conclusions: The difference in the success rate between the two protocols was not significant for the clamping protocols of the biliary external drainage tube. However protocol 2 is suggested for the clamping method due to the simplicity of application. Further study with a large sample size is suggested.

MOSFET 선량계 특성분석을 위한 팬톰 개발 및 특성 비교

정진범,이정우,김연래,이두현,최경식,김재성,김인아,홍세미,서태석,Chung, Jin-Beom,Lee, Jeong-Woo,Kim, Yon-Lae,Lee, Doo-Hyun,Choi, Kyoung-Sik,Kim, Jae-Sung,Kim, In-Ah,Hong, Se-Mie,Suh, Tae-Suk 한국의학물리학회 2007 의학물리 Vol.18 No.1

본 연구는 MOSFET (Metal Oxide Semiconductors Fleid Effect Transistors) 선량계의 교정과 특성분석을 위해서, 자체 팬톰을 개발하고 이 팬톰을 적용하여 표준감도와 고감도 두 종류의 MOSFET선량계의 특성을 비교 평가하는 것이다. 본 연구에서 개발한 팬톰은 직경 10cm의 반구형 모양인 팬톰과 1cm 두께 $30{\times}30cm^2$의 평판형의 팬톰으로 아크릴로 제작되었다. 평판형 팬톰은 MOSFET 선량계의 교정과 선량재현성, 선량직선성, 선량률 의존성을 측정하는데 사용하였으며 반구형 팬톰은 빔 입사각도 및 선량계 방향에 대한 MOSFET 선량계 특성을 분석하기 위해서 사용하였다. 모든 측정과정은 선형가속기(CL21EX, Varian, USA)의 6 MV 광자선, SSD 100cm, 조사면 $10{\times}10 cm^2$에서 수행하였다 선량계 교정과 선량재현성 평가에 사용된 5개의 표준감도와 고감도 MOSFET 선량계에 각각 200 cGy로 5번 반복 조사하여 $1.09{\pm}0.01{\sim}1.12{\pm}0.02,\;2.81{\pm}0.03{\sim}2.85{\pm}0.04mV/cGy$. 범위의 평균 교정계수가 결정되었고 선론쌔현성은 두 선량계 모두 2%이내로 거의 동일하였다. $5{\sim}600\;cGy$ 범위에서의 선량직선성은 두 MOSFET 선량계 모두 결정계수 $R^2=0.997$, 0.999인 좋은 선량직선성을 나타내었다. 200 cGy로 $100{\sim}600\;MU/min$ 범위의 선량률 의존성도 1%이내로 두 선량계가 동일하게 나타났다. 그러나 빔 입사각도와 선량계 방향의 의존성 평가에서, 표준감도와 고감도 MOSFET선량계는 평균적으로 빔 입사각도에 대해 13%, 10%의 변동폭과 ${\pm}4.4%$와 ${\pm}2.1%$의 표준편차가 있었으며, 선량계 방향에 대해 5%, 2%의 변동폭, ${\pm}2.1%$와 ${\pm}1.5%$의 표준편차로 두 선량계 간 현저한 차이를 나타났다 그러므로 여러 방향의 치료빔을 사용하는 방사선 치료의 선량검증을 위해서는 빔 입사각도와 선량계 방향의 의존성이 적은 고감도 MOSFET 선량계를 사용하는 것이 표준감도 WOSFET 선량계를 사용하는 것보다는 더 정확한 선량검증을 수행할 수 있을 것으로 사료된다. This study is to develope a phantom for MOSFET (Metal Oxide Semiconductors Field Effect Transistors) dosimetry and compare the dosimetric properties of standard MOSFET and microMOSFET with the phantom. In this study, the developed phantom have two shape: one is the shape of semi-sphere with 10cm diameters and the other one is the flat slab of $30{\times}30cm$with 1 cm thickness. The slab phantom was used for calibration and characterization measurements of reproducibility, linearity and dose rate dependency. The semi-sphere phantom was used for angular and directional dependence on the types of MOSFETs. The measurements were conducted under $10{\times}10cm^2$ fields at 100cm SSD with 6MV photon of Clinac (21EX, Varian, USA). For calibration and reproducibility, five standard MOSFETS and microMOSFETs were repeatedly Irradiated by 200cGy five times. The average calibration factor was a range of $1.09{\pm}0.01{\sim}1.12{\pm}0.02mV/cGy$ for standard MOSFETS and $2.81{\pm}0.03{\sim}2.85{\pm}0.04 mV/cGy$ for microMOSFETs. The response of reproducibility in the two types of MOSFETS was found to be maximum 2% variation. Dose linearity was evaluated In the range of 5 to 600 cGy and showed good linear response with $R^2$ value of 0.997 and 0.999. The dose rate dependence of standard MOSFET and microMOSFET was within 1% for 200 cGy from 100 to 500MU/min. For linearity, reproducibility and calibration factor, two types of MOSFETS showed similar results. On the other hand, the standard MOSFET and microMOSFET were found to be remarkable difference in angular and directional dependence. The measured angular dependence of standard MOSFET and microMOSFET was also found to be the variation of 13%, 10% and standard deviation of ${\pm}4.4%,\;{\pm}2.1%$. The directional dependence was found to be the variation of 5%, 2% and standard deviation of ${\pm}2.1%,\;{\pm}1.5%$. Therefore, dose verification of radiation therapy used multidirectional X-ray beam treatments allows for better the use of microMOSFET which has a reduced angular and directional dependence than that of standard MOSFET.

Comparison of Anisotropic Analytic Algorithm Plan and Acuros XB Plan for Lung Stereotactic Ablative Radiotherapy Using Flattening Filter-Free Beams

정진범,엄근용,김인아,김재성,이정우,홍세미,김연래,박병문,강상원,서태석,Chung, Jin-Beom,Eom, Keun-Yong,Kim, In-Ah,Kim, Jae-Sung,Lee, Jeong-Woo,Hong, Semie,Kim, Yon-Lae,Park, Byung-Moon,Kang, Sang-Won,Suh, Tae-Suk Korean Society of Medical Physics 2014 의학물리 Vol.25 No.4

이 연구는 비편평화여과기(flattening filter-free, FFF) 빔을 이용한 폐 정위절제방사선치료(stereotactic ablative radiotherapy, SABR)에 대하여 서로 다른 선량계산 알고리즘의 선량적 효과를 조사하였다. SABR를 받은 10명의 폐암 환자를 대상으로하여 평가하였다. 모든 치료계획은 Eclipse 치료계획시스템의 Acuros XB (AXB) 알고리즘을 이용하여 수립되었다. 다른 선량계산 알고리즘과 비교를 위하여, 추가적으로 anisotropic analytic algorithm (AAA) 알고리즘을 적용한 치료계획을 재 수립하였다. 두 알고리즘 평가를 위해서, 치료표적과 손상위험장기의 선량체적히스토그램(dose-volume histogrim, DVH)를 분석하였다. 그리고 기술적 인자로써 계산시간과 총 MU 값을 평가하였다. DVH 비교분석을 통해, PTV의 최대선량은 AXB이 AAA 보다 5.2% 높았으며 최소선량은 4.4% 낮게 나타났다. PTV의 $V_{105%}$에서 7.06%까지 큰 차이를 나타났다. 폐의 최대선량은 AXB 치료계획에서 약간 크게 나타났다. 동측성 폐에 5, 10과 20 Gy 선량이 조사되는 체적은 AAA 보다 AXB에서 더 크게 나타났으나 대측성 폐에 대해서는 거의 비슷하게 나타났다. 척수와 심장에서 최대선량의 차이도 크지 않았다. 계산시간의 경우, AXB가 AAA보다 13.7% 정도 소요시간이 적었고 MU 값은 AXB에서 3.47% 더 많았다. 이 연구의 결과들은 회전조절치료 기법을 포함하여 FFF 빔이 적용된 폐 SABR 치료계획에서 AXB 알고리즘은 선량계산의 정확성과 계산시간의 감소의 장점을 제공할 수 있을 것이다. This study investigated the dosimetric effects of different dose calculation algorithm for lung stereotactic ablative radiotherapy (SABR) using flattening filter-free (FFF) beams. A total of 10 patients with lung cancer who were treated with SABR were evaluated. All treatment plans were created using an Acuros XB (AXB) of an Eclipse treatment planning system. An additional plans for comparison of different alagorithm recalcuated with anisotropic analytic algorithm (AAA) algorithm. To address both algorithms, the cumulative dose-volume histogram (DVH) was analyzed for the planning target volume (PTV) and organs at risk (OARs). Technical parameters, such as the computation times and total monitor units (MUs), were also evaluated. A comparison analysis of DVHs from these plans revealed the PTV for AXB estimated a higher maximum dose (5.2%) and lower minimum dose (4.2%) than that of the AAA. The highest dose difference observed 7.06% for the PTV $V_{105%}$. The maximum dose to the lung was also slightly larger in the AXB plans. The percentate volumes of the ipsilateral lung ($V_5$, $V_{10}$, $V_{20}$) receiving 5, 10, and 20 Gy were also larger in AXB plans than for AAA plans. However, these parameters were comparable between both AAA and AXB plans for the contralateral lung. The differences of the maximum dose for the spinal cord and heart were also small. The computation time of AXB plans was 13.7% shorter than that of AAA plans. The average MUs were 3.47% larger for AXB plans than for AAA plans. The results of this study suggest that AXB algorithm can provide advantages such as accurate dose calculations and reduced computation time in lung SABR plan using FFF beams, especially for volumetric modulated arc therapy technique.

각막내피세포의 증식 및 손상의 회복에 대한 ROCK 억제제 Y-27632의 효과

김경환,정진권,류진숙,고아영,김미금,위원량,Kyeong Hwan Kim,Jin Kwon Chung,Jin Suk Ryu,MS,Ah Young Koh,BS,Mee Kum Kim,Won Ryang Wee 대한안과학회 2013 대한안과학회지 Vol.54 No.3

Purpose: To investigate the effect of ROCK inhibitor Y27632 on the human corneal endothelial cell proliferation in vitro and in vivo. Methods: Using corneal endothelial cells isolated and cultured from human donor cornea, we compared the effect of Y27632 (10 μM ) on the proliferation in vitro by flow cytometry analysis. For the evaluation of the effect of Y27632 (10 mM) in vivo, corneal thickness and wound area were analyzed for the corneal endothelial wound rabbit model induced by transcorneal freezing. Results: Ki67 positive cells were increased in the Y27632 group (9.1 ± 4.1 %) than the control group (8.0 ± 5.9 %), whereas annexin V positive cells in the Y27632 group (2.9 ± 1.0 %) were decreased compared to the control group (4.2 ± 2.2 %). However these were not statistically significant. Wound area after Y27632 application in animal model is concerned, the control group showed significant smaller area (45.6 ± 0.6 mm2) compared to the Y27632 group (49.3 ± 0.8 mm2; p = 0.029, Mann-Whitney U test), however, these were not significantly different from the baseline. Corneal thickness was not different between the two groups. Conclusions: Different from other reports for the effect of Y27632, no significant effect on the proliferation in vitro and wound healing in vivo, regarding human corneal endothelial cell, were found in this study.

The Effect of Caregiving Stress on Depression among Korean Married Adult Children of Korea

김윤정,정진아,가현수,Kim, Yun-Jeong,Chung, Jin-Ah,Ka, Hyun-Su The Society of Digital Policy and Management 2014 디지털융복합연구 Vol.12 No.10

본 연구의 목적은 노부모를 부양하는 성인자녀의 부양스트레스가 우울감에 미치는 영향을 파악하는데 있다. 이를 위해 2014년 1월 2월 충남의 H 대학의 대학원생을 조사원으로 활용하여 노부모부양에 책임이 있는 기혼의 성인자녀를 대상으로 편의표집을 하였으며, 350부를 배포하여 최종적으로 307명의 자료를 분석에 사용하였다. 성인자녀의 부양스트레스의 신뢰도는 .94, 우울감의 신뢰도는 .92로 높은 것으로 나타났다. 연구결과, 첫째, 노부모 부양 성인의 우울감은 평균 2.56점, 부양스트레스는 평균 2.53점으로 보통수준이하로 낮았다. 둘째, 기혼 성인자녀의 부양스트레스는 여성인 경우, 50대 이상, 농촌에 거주, 경제수준이 낮은 경우 더 높았다. 우울감은 배우자가 없는 경우, 경제수준이 낮은 경우 더 높았다. 셋째, 기혼 성인자녀의 경제수준이 낮을수록, 부양 스트레스가 높을수록 우울감이 높은 것으로 나타났다. The purpose of this study is to examine the relationship between caregivng stress and depression of the caregiver. The data was collected through by a survey on to married adults who are responsible for the care of old parents. The survey(by purposive sampling) was conducted over the course of for the three months duration from Jan. to Feb. 2014. A total of Finally, 307 copies of the questionnaire retrieved were used for analysis. First, in the case of women, those in their 50s or over, and in the all both gender cases, those who live in rural area, and those who perceive their economic levels as 'low' tend to have higher caregivng stress than other kinds of groups. Second, those who do not have spouses, and those who perceive their economic levels as 'low' tend to have higher depression than other kinds of groups, and those who hold the whole responsibility of caring old parents had a severe high depression. Third, it was found that the greater higher the caregivng stress of caregivers get, the more serious higher their stresses become get.

천연 고분자가 함유된 락타이드 글리콜라이드 공중합체 필름에서 슈반세포의부착과 증식 거동 비교평가

고현아(Hyun Ah Go),장지은(Ji Eun Jang),김형석(Hyeong Seok Kim),박찬흠(Chan Hum Park),권순용(Soon Yong Kwon),정진화(Jin Wha Chung),강길선(Gil Son Khang) 한국고분자학회 2014 폴리머 Vol.38 No.2

본 연구에서는 신경세포인 슈반세포(SC)의 증식에 가장 적합한 생체재료를 연구하였다. 락타이드 글리콜라이드 공중합체(PLGA)에 탈미네랄 골분(demineralized bone particle, DBP), 소장점막하조직(small intestine submucosa,SIS), 그리고 실크를 각각 20% 첨가하여, 용매 증발법으로 각각의 필름을 제조하고, SC세포의 부착과 증식을 확인하기 위해 MTT, SEM 그리고 RT-PCR 분석을 실시하였다. 또한 필름의 친수성을 확인하기 위해 접촉각을 측정하였다. 분석 결과, PLGA/DBP 20% 필름에서 높은 친수성을 보였으며, SC의 부착과 증식률이 다른 군에 비해 크게증가한 것을 확인할 수 있었다. 따라서 PLGA/DBP 필름은 중추신경재생 재료로 활용할 수 있을 것으로 사료된다. This study was designed to find an appropriate biomaterial to proliferate Schwann cell (SC). Poly(lactic-co-glycolic acid) (PLGA) films mixed with demineralized bone particle (DBP), small intestine submucosa (SIS), and silk were fabricated by a solvent casting method. Analysis of MTT, SEM and RT-PCR were performed to confirm adhesion and proliferation of SC. Contact angle of films was assayed for hydrophilicity of films. We confirmed that PLGA/DBP 20% film showed higher hydrophilicity, promoted adhesion and proliferation of SC than other films. It was concluded that PLGA/DBP film can be applied for the scaffold biomaterials for the regeneration of central nerve system.

국내 남성 하이 캐주얼 의류의 디자인에 관한 연구

강경영,김금순,오경애,왕향,이민옥,이지현,정진아,조귀선 연세대학교 생활과학대학 1989 婦學 Vol.22 No.-

The purposes of this study were to investigate historial background of men's hight casual wear in Korea and to make a suggestion for '89 s/s design based on the market research. The results of the market research show men's hight casual wear market divided into formal brand and informal brand, there is no great difference between their target markets which is based on age, taste, and price. On the basis of this results and the international fashion trend for '89 s/s, we suggested four trends for men's hight casual wear design in consideration of Time, Place, and Occasion.