존재론과 인식론이 사회과학 연구에 미치는 실질적인 영향 : 국민연금제도 연구사례를 중심으로

문현경(Hyungyung Moon),김혜진(Hyejin Kim) 비판과 대안을 위한 사회복지학회 2021 비판사회정책 Vol.- No.70

본 연구는 존재론과 인식론이 사회과학의 연구과정에 미치는 영향을 국민연금제도 연구를 예로 들어 보여주고자 한다. 이를 위해 ‘연구자의 존재론과 인식론이 전반적인 연구과정을 어떻게 다르게 하는가?’라는 질문을 설정한다. 이에 답하고자 Moon(2018)과 김혜진, 신승희, 유현경(2019)을 선정하여 존재·인식론적 관점을 토대로 연구질문의 설정과 연구방법의 선택, 자료수집 및 분석 과정, 연구결과 및 함의도출을 살펴본다. Moon(2018)은 근본주의-실재론을 토대로 두 차례 국민연금 개혁의 인과기제를 추론한다. 따라서 연구질문은 “어떻게”로 기술되고 과정추적법을 연구방법으로 하여 인터뷰와 공식문서 등을 활용했다. 반근본주의-해석주의 기반의 김혜진 등(2019)은 국민연금 감액수급자의 근로활동 실태는 어떤지, 즉 “무엇”에 주목하며 감액적용되어도 “왜” 일을 계속하는지 이해하고자 포커스그룹 인터뷰를 활용했다. 두 사례는 선행연구와 다른 함의를 제시하는데 이는 연구자가 존재론과 인식론을 분명히 했기 때문이다. 본 연구는 사회과학에 종사하는 학생과 연구자가 존재론과 인식론에 대한 진지한 고민을 통해 다양한 연구논리와 방법론으로 사회문제에 대한 폭넓은 논의를 하길 기대한다. The philosophical perspective of researchers on social phenomena has a great influence on designing their research. It is the discussion of ontological and epistemological positions, according to which subsequent stages of the research is shaped to a large extent. Exploring Moon(2018) and Kim et al.(2019), this paper highlights how the philosophical orientation results in substantial differences in research questions, research methods, type of data gathered, and their implications. Based on foundational ontology and realist epistemology, Moon(2018) examines the reform process of the National Pension Scheme to infer the causal mechanism working behind the reforms. Hence, he set the research questions that consist of “how” questions, and collected data mainly by conducting elite interviews and obtaining official documents. Applying anti-foundational ontology and interpretivist epistemology, Kim et al.(2019) explores the economic activities of pensioners who have received reduced pension benefits due to the economic activities after retirement. Kim et al.(2019), therefore, set out the research questions with “what” and “why” questions and obtained data through focus group interviews. In conclusion, this paper expects students and researchers in social science to reflect upon their own ontological and epistemological orientations in a serious manner, whereby they could provide fertile ground for the extensive discussions of social issues.

Cerebral oxidative stress and angiotensin Ⅱ signaling in chronic isoproterenol-infused rabbits

Hyejin Moon(문혜진),Hyunju Kim(김현주),Nari Kim(김나리),Hyun Joo(주현),Jae boum Youm(염재범),Won sun Park(박원선),Hyunsuk Lee(이현숙),Sunghyun Kang(강성현),Dang Van Cuong,Hyoung kyu Kim(김형규),Teaho Kim(김태호),Tran Minh Khoa,Vu 한국생물공학회 2005 한국생물공학회 학술대회 Vol.2005 No.10

Wound management

Hyejin MOON 한국간담췌외과학회 2021 Annals of hepato-biliary-pancreatic surgery Vol.25 No.-

Do complexity and ambiguity affect people's intent to apply for public assistance?

Moon Hyejin,Heo Yong‐Chang 한국사회복지학회 2022 Asian Social Work and Policy Review Vol.16 No.1

This article aims to raise and empirically test whether complexity and ambiguity would affect the intent to apply for public assistance in the case of South Korea. Results of regression analysis reveal that the complexity of the application process has led to a greater decline in the intent of the poor to apply, possibly because the present bias is relatively greater. These outcomes indicate that the ambiguity aversion attitude of the poor was not different from that of the non-poor. However, when ambiguity is combined with complexity, it has an additive effect, lowering the intention to apply. From these findings, understandable policy manuals should be provided to potential applicants of assistance services and multiple forms, and evidence materials should be simplified in public assistance. Finally, in terms of behavioral economics and social policy, decreasing the complexity and ambiguity could “nudge” the Non-take- up and encourage them to apply for selective welfare programs.

Atmospheric rivers in East Asia: Climatology

Hyejin Moon,Jinwon Kim,Bin Guan,Duane Waliser,Young-Hwa Byun,Juntae Choi 한국기상학회 2018 한국기상학회 학술대회 논문집 Vol.2018 No.10

세 가지 재분석 자료에서의 겨울철 북반구 평균 자오면 순환-에디 상호작용

문혜진(Hyejin Moon),하경자(Kyung-Ja Ha) 한국기상학회 2015 대기 Vol.25 No.3

The present study examines an interaction between the eddy and mean meridional circulation (MMC) comparing the results in three reanalysis data sets including ERA-Interim, NCEP2, and JRA-55 during the boreal winter in the Northern Hemisphere. It is noteworthy that the JRA-55 tends to produce stronger MMC compared to those of others, which is mainly due to the weak eddy flux. ERA-Interim represents the ensemble averages of MMC. The MMC-eddy interaction equation was adopted to investigate the scale interaction of the eddy momentum flux (EMF), eddy heat flux (EHF), and diabatic heating (DHT) with MMC. The EMF (EHF) shows a significant correlation coefficient with streamfunction under (above) 200 hPa-level. The perturbation (time mean) part of each eddy is dominant compared to another part in the EMF (EHF). The DHT is strongly interacted with streamfunction in the region between the equator and extra-tropical latitude over whole vertical column. Thus, the dominant term in each significant region modulates interannual variability of MMC. The inverse (proportional) relationship between MMC and pressure (meridional) derivative of the momentum (heat) divergence contributions is well represented in the three reanalysis data sets. The region modulated interannual variability of MMC by both EMF and DHT (EHF) is similar in ERA-Interim and JRA-55 (ERA-Interim and NCEP2). JRA-55 shows a lack of significant region of EHF due to the high resolution, compared to other data sets.

북반구 겨울철 에디들에 의한 운동량, 열 그리고 수분 수송

문혜진(Hyejin Moon),하경자(Kyung-Ja Ha) 한국기상학회 2016 대기 Vol.26 No.4

This study investigates eddy transports in terms of space and time for momentum, heat, and moisture, emphasizing comparison of the results in three reanalysis data sets including ERA-Interim from the European Center for Medium-range Weather Forecasts (ECMWF), NCEP2 from the National Center for Environmental Prediction and the Department of Energy (NCEP-DOE), and JRA-55 from the Japan Meteorological Agency (JMA) during boreal winter. The magnitudes for eddy transports of momentum in ERA-Interim are represented as the strongest value in comparison of three data sets, which may be mainly come from that both zonal averaged meridional and zonal wind tend to follow the hierarchy of ERA-Interim, NCEP2, and JRA-55. Whereas in relation to heat and moisture eddy transports, those of NCEP2 are the strongest, implying that zonal averaged air temperature (specific humidity) tend to follow the raking of NCEP2, ERA-Interim, and JRA-55 (NCEP2, JRA-55, and ERA-Interim), except that transient eddy transports for heat in ERA-Interim are the strongest involving both meridional wind and air temperature. The stationary and transient eddy transports in the context of space and time correlation, and intensity of standard deviation demonstrate that the correlation (intensity of standard deviation) influence the structure (magnitude) of eddy transports. The similarity between ERA-Interim and NCEP2 (ERA-Interim and JRA-55) of space correlation (time correlation) closely resembles among three data sets. A resemblance among reanalysis data sets of space correlation is larger than that of time correlation.

Atmospheric River 상륙이 한반도 강수와 기온에 미치는 영향 연구

문혜진(Hyejin Moon),김진원(Jinwon Kim),Bin Guan,Duane E. Waliser,최준태 (Juntae Choi),구태영(Tae-Young Goo),김영미(Youngmi Kim),변영화(Young-Hwa Byun) 한국기상학회 2019 대기 Vol.29 No.4

The seasonal climatology of atmospheric rivers (ARs) and their effects on the seasonal precipitation and temperature in Korea are examined using the AR chronology obtained by a methodology based on the vertically integrated water vapor transport (IVT) in conjunction with a fine-scale gridded analysis of station precipitation and temperature. ARs are found to affect Korea most heavily in the warm season with minimal impacts in winter. This contrasts the AR effects in the western North America and the Western Europe that are affected most in winters. Significant portions of precipitation in Korea are associated with AR landfalls for all seasons; over 35% (25%) of the summer (winter) rainfall in the southern part of the Korean peninsula. The percentage of AR precipitation over Korea decreases rapidly towards the north. AR landfalls are also associated with heavier-than-normal precipitation events for all seasons. AR landfalls are associated with above-normal temperatures in Korea; the warm anomalies increase towards the north. The warm anomalies during AR landfalls are primarily related to the reduction in cold episodes as the AR landfalls in Korea are accompanied by anomalous southerlies/southwesterlies.

수치예보자료를 이용한 강우 및 홍수 예측 적용성 평가

문혜진(Moon, Hyejin),유완식(Yu, Wansik),정관수(Jung, Kwansue) 한국방재학회 2017 한국방재학회 학술발표대회논문집 Vol.2017 No.-

CMIP5 MME와 Best 모델의 비교를 통해 살펴본 미래전망

문혜진(Hyejin Moon),김병희(Byeong-Hee Kim),오효은(Hyoeun Oh),이준이(June-Yi Lee),하경자(Kyung-Ja Ha) 한국기상학회 2014 대기 Vol.24 No.3

Future changes in seasonal mean temperature and precipitation over East Asia under anthropogenic global warming are investigated by comparing the historical run for 1979~2005 and the Representative Concentration Pathway (RCP) 4.5 run for 2006~2100 with 20 coupled models which participated in the phase five of Coupled Model Inter-comparison Project (CMIP5). Although an increase in future temperature over the East Asian monsoon region has been commonly accepted, the prediction of future precipitation under global warming still has considerable uncertainties with a large inter-model spread. Thus, we select best five models, based on the evaluation of models’ performance in present climate for boreal summer and winter seasons, to reduce uncertainties in future projection. Overall, the CMIP5 models better simulate climatological temperature and precipitation over East Asia than the phase 3 of CMIP and the five best models’ multi-model ensemble (B5MME) has better performance than all 20 models’ multi-model ensemble (MME). Under anthropogenic global warming, significant increases are expected in both temperature and land-ocean thermal contrast over the entire East Asia region during both seasons for near and long term future. The contrast of future precipitation in winter between land and ocean will decrease over East Asia whereas that in summer particularly over the Korean Peninsula, associated with the Changma, will increase. Taking into account model validation and uncertainty estimation, this study has made an effort on providing a more reliable range of future change for temperature and precipitation particularly over the Korean Peninsula than previous studies.