BSC도입이 지방공기업 성과에 미치는 영향 :도시개발공사와 시설관리공단을 중심으로

김유미,정순여 한국회계정책학회 2015 회계와 정책연구 Vol.20 No.3

The purpose of this study is to empirically analyze the significant effects of adopting the Balanced Scorecard (BSC) on organizational performance such as return on equity (ROE), the amount of value-added production and labor productivity in local public enterprises. It is based on the financial data from 2003 until 2013, focusing on 12 urban development corporations and 15 facilities corporations. The results are summarized as follows. First, concerning the effect of BSC adoption on organizational performance, it is shown that the amounts of value-added production in local public enterprises are higher than before. In light of the characteristics of indicators related to value added, the amount of value-added production reflects the degree of an organization's social contribution. Accordingly, because the amounts of value-added production have increased significantly after BSC adoption, it can be said that the degree of social contribution in local public enterprises is higher than before. This partially supports the results of previous studies, which have shown that the adoption of the BSC in pubic institutions can have a positive effect on improvement in organizational performance. Second, concerning the effect of the period of BSC adoption on organizational performance, a significant difference is not shown when the six-year period following BSC adoption is compared with the ante-adoption period. This is not in accordance with the results of previous studies, which have found that the longer period of BSC implementation is associated with higher organizational performance. Therefore, it is thought that local public enterprises make little effort to establish the BSC through a continuous modification process of ensuing problems after adoption. 본 연구는 지방공기업의 BSC 도입이 조직성과(ROE, 부가가치생산액, 노동생산성)에 유의한 영향을 미치는가를 규명하는 것이다. 12개의 도시개발공사와 15개의 시설관리 공단을 대상으로 2003년부터 2013년도까지의 재무자료를 바탕으로 실증분석을 실시한 결과는 다음과 같다. 첫째, BSC 도입의 효과는 도입여부와 도입경과기간으로 나누어 분석하였다. ROE의 경우 도입 전․후의 차이는 통계적으로 유의하지 않았지만, 부가가치생산액의 경우 도입여부와 조직유형에서 모두 유의미한 차이가 있는 것으로 나타났다. 노동생산성의 경우는 도입여부에서는 차이가 없고, 조직유형에서는 유의미한 차이가 있는 것으로 나타났다. 둘째, BSC 도입여부가 지방공기업의 조직성과에 미치는 효과를 분석한 결과, 도입여부는 지방공기업(도시개발공사)의 ROE와 노동생산성에 통계적으로 유의한 영향을 미치지 않는 것으로 나타났지만, 부가가치생산액에는 통계적으로 유의한 영향을 미치는 것으로 나타났다. 셋째, BSC 도입경과기간이 지방공기업의 조직성과에 미치는 효과를 분석한 결과, 도입경과기간은 지방공기업(도시개발공사)의 ROE, 부가가치생산액과 노동생산성에도 각각 통계적으로 유의미한 영향을 미치지 않는 것으로 나타났다.

Anomalous Stress-Induced Hump Effects in Amorphous Indium Gallium Zinc Oxide TFTs

김유미,이가원,정광석,윤효진,양승동,이상율,이희덕 한국전기전자재료학회 2012 Transactions on Electrical and Electronic Material Vol.13 No.1

In this paper, we investigated the anomalous hump in the bottom gate staggered a-IGZO TFTs. During the positive bias stress, a positive threshold voltage shift was observed in the transfer curve and an anomalous hump occurred as the stress time increased. The hump became more serious in higher gate bias stress while it was not observed under the negative bias stress. The analysis of constant gate bias stress indicated that the anomalous hump was influenced by the migration of positively charged mobile interstitial zinc ion towards the top side of the a-IGZO channel layer.

종합병원 간호사의 신종감염병 관리에 대한 건강신념이 건강관리 자기효능감에 미치는 영향

정미라,정은,김유미,Jung, Mi-Ra,Jeong, Eun,Kim, Yu-Mi 한국융합학회 2021 한국융합학회논문지 Vol.12 No.9

본 연구의 목적은 종합병원 간호사의 신종감염병 관리에 대한 건강신념과 건강관리 자기효능감의 관련성을 확인하고, 건강관리 자기효능감에 영향을 미치는 요인을 규명하기 위함이다. 본 연구대상자는 S와 Y시의 종합병원에 근무하는 간호사 150명을 대상으로 2021년 1월 11일부터 1월 22일까지 설문조사를 하였다. 연구결과 종합병원 간호사의 건강관리 자기효능감에 영향을 미치는 요인은 지각된 유익성(β=.17, p=.040) 지각된 민감성(β=.19, p=.020), 연령(β=.21, p=.005)으로 건강관리 자기효능감을 14.0% 설명하였다(F=4.28, p<.001). 본 연구를 통해 종합병원 간호사의 신종감염병 관리에 대한 지각된 유익성과 지각된 민감성을 높일 수 있는 건강관리 자기효능감 교육 프로그램 개발이 필요하다. This study was to examine relationships among health belief of emerging infectious disease and self-efficacy for healthcare and identify the factors that influence on self-efficacy for healthcare in the general hospital nurses. The data were collected from 150 nurses working in the three general hospitals, located in S and Y city using self-administered questionnaires. Data was collected from January 11, 2021 to January 22. Among sub-factors of the health beliefs, perceived benefit (β=.17, p=.040), perceived sensitivity (β=.19, p=.020), and age (β=.21, p=.005), and these variables explained 14.0% of self-efficacy for healthcare(F=4.28, p<.001). Through this study, it is necessary to develop educational program self-efficacy for healthcare is needed for improving perceived benefit and perceived sensitivity among general hospital nurses.

저온 다결정 실리콘 박막 트랜지스터의 비정상적인 Hump 현상 분석

김유미,정광석,윤호진,양승동,이상율,이희덕,이가원,Kim, Yu-Mi,Jeong, Kwang-Seok,Yun, Ho-Jin,Yang, Seung-Dong,Lee, Sang-Youl,Lee, Hi-Deok,Lee, Ga-Won 한국전기전자재료학회 2011 전기전자재료학회논문지 Vol.24 No.11

In this paper, we investigated an anomalous hump phenomenon under the positive bias stress in p-type LTPS TFTs. The devices with inferior electrical performance also show larger hump phenomenon. which can be explained by the sub-channel induced from trapped electrons under thinner gate oxide region. We can confirm that the devices with larger hump have larger interface trap density ($D_{it}$) and grain boundary trap density ($N_{trap}$) extracted by low-high frequency capacitance method and Levinson-Proano method, respectively. From the C-V with I-V transfer characteristics, the trapped electrons causing hump seem to be generated particularly from the S/D and gate overlapped region. Based on these analysis, the major cause of an anomalous hump phenomenon under the positive bias stress in p-type poly-Si TFTs is explained by the GIDL occurring in the S/D and gate overlapped region and the traps existing in the channel edge region where the gate oxide becomes thinner, which can be inferred by the fact that the magnitude of the hump is dependent on the average trap densities.

중소병원 간호사의 환자안전에 대한 태도, 도덕적 민감성이 표준주의지침 수행에 미치는 영향

정은,정미라,김유미 한국디지털정책학회 2021 디지털융복합연구 Vol.19 No.9

Beam Diagnostics for Real-time 100 MeV Proton Beam Monitoring for RI Production

김유미,정명환,조원제,정광일,전권수,장혜민 한국공업화학회 2023 한국공업화학회 연구논문 초록집 Vol.2023 No.1

건강위험요인에서의 불평등: 우리나라의 현황

김유미,정최경희 대한의사협회 2013 대한의사협회지 Vol.56 No.3

Tackling socioeconomic inequalities in health risk factors is an important pathway for alleviating health inequalities. The aim of this study was to analyze the current state of inequality in health risk factors by socioeconomic status in Korea through a literature review of recently published studies and description of secondary data from the Korea National Health and Nutritional Examination Survey (KNHANES). We evaluated the extent and trends of socioeconomic inequalities in health behavior (smoking, high-risk alcohol drinking, moderate exercise, and nutritional deficiency) and clinical risk factors (hypertension, diabetes mellitus, hypercholesterolemia,and obesity) with 1998 to 2010 KNHANES data based on socio-economic status. Furthermore, we summarized the impact of several distal health determinants like income,education and occupation, and childhood period on health inequalities in Korea. The results showed that a wide range of health risk factors including more distal causes were socio-economically patterned to varying degrees. In order to reduce health inequalities by socioeconomic status,more comprehensive monitoring and measures, and well-designed studies are required for promoting the understanding of the causal pathway and developing interventional strategies.

Investigation of the Instability of Low-Temperature Poly-Silicon Thin Film Transistors under a Negative Bias Temperature Stress

김유미,정광석,윤호진,양승동,이상열,이희덕,이가원 대한금속·재료학회 2013 ELECTRONIC MATERIALS LETTERS Vol.9 No.-

In this work, we analyzed and correlated the hysteresis characteristics and instability under negative bias temperature instability (NBTI) stress in p-channel low-temperature poly-silicon (LTPS) thin-film transistors (TFTs). Positive VTH shifts were observed under the NBTI stress. The hysteresis does not appear to be affected by the NBTI stress; however, when the VG stress voltage is −40 V at 100°C, the hysteresis increases as the stress time increases and VTH shifts with sub-threshold slope (SS) degradation. The hysteresis may increase under the extreme stress condition due to the generation of trap-states.

Low-Frequency Noise 측정을 통한 Bottom-Gated ZnO TFT의 문턱전압 불안정성 연구

정광석,김영수,박정규,양승동,김유미,윤호진,한인식,이희덕,이가원,Jeong, Kwang-Seok,Kim, Young-Su,Park, Jeong-Gyu,Yang, Seung-Dong,Kim, Yu-Mi,Yun, Ho-Jin,Han, In-Shik,Lee, Hi-Deok,Lee, Ga-Won 한국전기전자재료학회 2010 전기전자재료학회논문지 Vol.23 No.7

Low-frequency noise (1/f noise) has been measured in order to analyze the Vth instability of ZnO TFTs having two different active layer thicknesses of 40 nm and 80 nm. Under electrical stress, it was found that the TFTs with the active layer thickness of 80 nm shows smaller threshold voltage shift (${\Delta}V_{th}$) than those with thickness of 40 nm. However the ${\Delta}V_{th}$ is completely relaxed after the removal of DC stress. In order to investigate the cause of this threshold voltage instability, we accomplished the 1/f noise measurement and found that ZnO TFTs exposed the mobility fluctuation properties, in which the noise level increases as the gate bias rises and the normalized drain current noise level($S_{ID}/{I_D}^2$) of the active layer of thickness 80 nm is smaller than that of active layer thickness of thickness 40 nm. This result means that the 80 nm thickness TFTs have a smaller density of traps. This result correlated with the physical characteristics analysis performmed using XRD, which indicated that the grain size increases when the active layer thickness is made thicker. Consequently, the number of preexisting traps in the device increases with decreasing thickness of the active layer and are related closely to the $V_{th}$ instability under electrical stress.

건강 수준에서의 불평등: 우리나라의 현황

정최경희,김유미 대한의사협회 2013 대한의사협회지 Vol.56 No.3

Both social interest in and studies of socioeconomic inequalities in health have increased in recent years. This article presents the current state of socioeconomic inequalities in health status in Korea, based on recent research.Socioeconomic inequalities in health status have been consistently observed in Korea as well as abroad. In both men and women, from birth-sometimes evenfrom before birth-to death, inverse relationships between socioeconomic position and most indicators of healthexist. For some health indicators, such as suicide, absolute and relative inequalities have become significantly worse than in the past. Knowledge of health inequalities in small geographic areas can be useful for allocating health resources. Representative indicators of socioeconomic inequalities in health shouldundergo ongoing monitoringby the government. In addition, there is a need for research to explore the mechanisms and to evaluate the effectiveness of specific policies and intervention programs as well as to identify socioeconomic inequalities in a variety of health outcomes.Learning the status of and trends in socioeconomic inequalities in health isan essential step toward increasing awareness of these inequalities in society and promoting an integrated and systematic policy for tackling them.