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방임 및 보호 아동·청소년 원가정 회복지원 시범사업의 현황과 과제
정지영,안진경,김은혜,Jeong, Jeeyoung,Anh, Jinkyung,Kim, Eunhye 한국가족자원경영학회 2021 가족자원경영과 정책 Vol.25 No.3
Child abuse and neglect are recently increasing in Korea, and although the government has actively improved the child protection system, the number of abused children and the rate of cases judged as abuse have continuously risen. Given that 75% of child abusers are parents, child abuse and neglect are expected to recur. To prevent such a recurrence, various intervention programs for abused children and their parents are required. The purpose of this study were to design a recovery support service process and investigate the effectiveness of pilot program for families of origin, including neglected(protected) children, to improve the system by which these programs are operated, and formulate policy alternatives that reinforce "family preservation" principles. The pilot program was implemented from June to November 2020 in 4-local healthy family support center. The number of program participants and the frequency of participation in each other differed, because of the difference in number of confirmed coronavirus cases in each region and the requirement for social distancing. Through the program, a community-based service process was developed for neglected(protected) children and their parents, and cooperative networks between related facilities and institutions were established. The study formulated the following recommendations: First, a cooperation system among government departments mandated to provide different services to neglected(protected) children is needed. Second, wider and various channels through which abused children can avail of protective services should be developed within communities. Third, more stable environments for program operation should be cultivated, and cooperative partnerships should be sought for knowledge sharing among relevant government departments. Another necessary measure is for a center to develop its own business model, in which the duplication of services provided by involved organizations is avoided. Finally, clear guidelines, administrative standards, and specific plans for program operation should be arranged. Also regional characteristics are maintained, but services should be standardized.
절삭 깊이의 무작위 제어를 적용한 다이아몬드 선삭공정에서 소재회전 반경에 따른 미세패턴의 크기변화 분석 연구
정지영,한준세,최두선,제태진,Jeong, Ji-Young,Han, Jun-Se,Choi, Doo-Sun,Je, Tae-Jin 한국금형공학회 2020 한국금형공학회지 Vol.14 No.1
Ultra-high brightness and thin displays need to optical micro-patterns which can uniformly diffuse the lights and low loss. The micro random patterns have characteristics to rise the optical efficiency such as light extraction, uniform diffusion. For this reason, various fabrication processes are studied for random patterns. In this study, the micro random patterns were machined by diamond turning which used a controlled cutting tool path with random cutting depth. The machined patterns had random shape and directionality along the circumferential direction. The average width and length of machined random pattern according to rotation radius were 40.13㎛~55.51㎛ and 37.25㎛~59.49㎛, and these results were compared with the designed result. Also, the machining error according to rotation radius in diamond turning using randomly controlled cutting depth was discussed.
TDABC와 공헌이익분석을 통한 항만배후단지 물류센터 원가관리 사례연구
정지영(Ji-Young Jeong),안기명(Ki-Myung Ahn) 한국항만경제학회 2015 韓國港灣經濟學會誌 Vol.31 No.3
본 논문은 부산항 신항 배후단지에 위치한 항만물류창고 업체들에 대한 원가관리 실태를 점검하고, 향후 업체들을 지원할 수 있는 원가관리 모델을 제시하여 그 이론과 방법을 연구하였으며, 이를 동 지역의 사례업체인 K사에 직접 적용해 봄으로써 그 모델이 동 지역 업체들의 원가관리에 유용하다는 것을 규명하는데 그 목적을 두고 있다. 이에 따라 개별 원가계산 관리 모델로서 전통적 원가계산, 활동기준 원가계산(ABC), 시간동인 활동기준 원가계산(TDABC)의 3가지 모델을 제시하여 비교 연구하였으며, 최소이익 원가관리 모델로서는 공헌이익 분석 모델을 제시해서 연구하였다. 3가지 개별 원가계산 관리 모델 중에서는 TDABC가 가장 진일보되고 유용한 모델이라는 것을 규명할 수 있었으며, 공헌이익 분석 모델은 동 지역 업체들의 최소이익 관리 모델로서 적합하다는 것을 확인할 수 있었다. The purpose of this case study is to verify the usefulness of three costing models and a minimum profit management model that can support the logistics warehouse companies in the Busan Newport Distri-park. This case study investigated traditional costing, activity-based costing (ABC), and time-driven ABC (TDABC); and suggested that an appropriate minimum profit management model is contribution margin analysis. Accordingly, in order to verify the usefulness of models, this case study surveyed the actual cost management conditions of companies, applied the three costing models to the “K” warehouse company in the Busan Newport Distri-park, and undertook a comparative study of the results. This case study produced two main findings. First, TDABC was verified as the most useful and advanced of the three costing models tested. Second, contribution margin analysis was confirmed to be the most suitable model to manage minimum profits for port warehouse companies in the Busan Newport Distri-park.
펩티도글리칸에 의한 단핵세포의 Tumor necrosis factor-α 발현 기전 연구
정지영(Ji-Young Jeong),손용해(Yonghae Son),김보영(Bo-Young Kim),김관회(Koanhoi Kim) 한국생명과학회 2019 생명과학회지 Vol.29 No.11
본 연구에서는 펩티도글리칸이 단핵세포의 TNF-α 발현에 미치는 영향을 조사하였고, 또한 펩티도글리칸에 의한 TNF-α 발현에 관련된 세포의 요소들을 연구하였다. 사람의 단핵세포주인 THP-1 세포를 펩티도글리칸에 노출시키는 경우 TNF-α 분비 증가뿐만 아니라 TNF-α 유전자 전사를 유도하는 결과를 가져왔다. TLR-2/4의 억제제인 OxPAPC은 펩티도글리칸에 의한 TNF-α의 발현을 저해하였다. 그리고 U0126, SB202190, SP6001250, LY294002, Akti IV, rapamycin, NAC, DPI 같은 약리학적 저해제 또한 TNF-α 발현을 유전자/단백질 수준에서 상당히 약화시켰다. 그러나 polymyxin B는 TNF-α 발현에 영향을 주지않았다. 따라서 펩티도글리칸이 TLR-2, PI3K, Akt, mTOR, MAPKs, ROS 등을 통하여 단핵세포의 TNF-α 발현을 증가시킴을 확인하였다. Peptidoglycan (PG) is found in atheromatous lesions of arteries, where monocytes/macrophages express inflammatory cytokines, including tumor necrosis factor-alpha (TNF-α). This study investigated the effects of PG on TNF-α expression and examined possible cellular factors involved in TNF-α upregulation. The overall aim was to identify the molecular mechanisms underlying inflammatory responses to bacterial pathogen-associated molecular patterns in the artery. Exposure of human THP-1 monocytic cells to PG enhanced the secretion of TNF-α and induced its gene transcription. Inhibition of TLR-2/4 with OxPAPC significantly inhibited TNF-α gene expression, whereas inhibition of LPS by polymyxin B did not. The PG-induced expression of TNF-α was also significantly suppressed by pharmacological inhibitors that modulate activities of cellular signaling molecules; for example, U0126 (an ERK inhibitor), SB202190 (a p38 MAPK inhibitor), and SP6001250 (a JNK inhibitor) significantly attenuated PG-induced transcription of TNF-α and secretion of its gene product. TNF-α expression was also inhibited by rapamycin (an mTOR inhibitor), LY294002 (a PI3K inhibitor), and Akt inhibitor IV (an Akt inhibitor). ROS-regulating compounds, like NAC and DPI, also significantly attenuated TNFα expression induced by PG. These results suggest that PG induces TNF-α expression in monocytes/ macrophages by multiple molecules, including TLR-2, PI3K, Akt, mTOR, MAPKs, and ROS.