유성신 (流星身) : 불교청년제군 (佛敎靑年諸君)이게 간고 (懇告) / 경도유학불교생 (京都留學佛敎生) 김지현 (金智玄) ( 조선불교월보 제 19 호 )

김지현 조선불교월보사 1916 朝鮮佛敎月報 Vol.19 No.-

산화그래핀(Graphene Oxide)을 활용한 시멘트 페이스트 제조기술

김지현,김지현,최익제,김상호,한승윤,정철우 한국건축시공학회 2020 건축시공 Vol.20 No.2

T 림파구의 Uropod 형성에 있어 인산화 Ezrin단백질의 역할

김지현,김경민,최우봉,김정환,김광현,이종환,장안희,윤선미,김지현 대한암예방학회 2009 Journal of cancer prevention Vol.14 No.2

Migrating T cell shows typical hand-mirror shape, leading edge and uropod polarity. EL 4 T cells features partitioned morphology like leading edge and uropod. In order to verify this polarity, EL 4 T cells were stained for nucleus, Golgi apparatus, cell membrane with DAPI, BODIPY-FL C5-ceramide and CD44, respectively. EL4 T cells showed typical migrating T cell shape. Ezrin is a cross-linker between cell membrane and cytoskeleton. Especially, phospho-ezrin may play an important role for uropod region. Phospho-ezrin was accumulated in uropod region immune-stained with anti phospho ezrin antibody. T567D ezrin, phospho-mimetic form of ezrin, was transfected into EL4 T cells. T567D transfectants showed enhanced uropod structure and disrupted leading edge. NH2 terminal domain (NT)-ezrin transfectants showed weak uropod structure. In addition, T567D had ability of cytoplasmic accumulation of F-actin in P3X63,653 myeloma cell. To test cell biological function with enhanced uropod, cell migration assay was carried out with T567D ezrin transfectants. Reduced cell migration was detected in T567D transfectants with F2 endothelial cell, however cell migration was increased in T567D transfectants without F2 cells. Collectively, phospho-ezrin is involved in uropod fromation and uropod facilitates the rapid cell migration.

S-315 : 체동맥 폐순환의 Amplatzer vascular plug 를 이용한 치료의 1예

김지현,박용근,배준기,김지현,박용근,배준기 대한내과학회 2013 대한내과학회 추계학술대회 Vol.2013 No.1

폐격리증 없이 정상 기관지와 연결된 폐실질 조직에 체동맥이 분포하는 선천성 기형은 드문 질환으로 이중 좌폐하엽 기저분절의 체동맥 분포가 가장 많은 것으로 알려져 있다. 수술적인 치료가 일반적이었지만, 최근 수술의 위험성 및 합병증을 줄이기 위해 동맥색전술을 이용한 치료가 시도되고 있으며, 주로 코일을 이용한 동맥색전술이 보고되어 왔다.저자들은 반복적인 객혈을 하였던 22세 남자에서 폐격리증이 동반 되지 않은 우폐하엽의 10 mm의 체동맥 분포를 확인 하였고, 섭식동맥 직경이 크고 혈류가 빨라 Amplatzer 혈관폐색장치를 이용한 색전술을 시행한 증례를 경험하여 보고하는 바이다. 22세의 특이질환 없는 남자 환자가 반복되는 객혈로 입원하였다. 이학적 검사상 특별한 소견은 없었고, 혈액검사 및 X-ray 상에서도 특별한 소견은 보이지 않았다. Bronchoscopy상 오른쪽 제2기관 분기부에서 출혈의 흔적과 식염수세척시 피가 나오는 것을 관찰할 수 있었다. 흉부 CT상 우폐하엽의 유리음영과 함께 약 10 mm의 흉부동맥에서 우하폐엽으로 분지되는 섭식동맥이 관찰되었다. 혈관조영술에서 흉부대동맥에서 우폐하엽으로 분지되는 섭식 동맥, 동정맥혈관 및 분출 정맥을 관찰하였고 직경이 크고 혈류가 빠를 때 유리한 Amplatzer 혈관폐색장치를 사용하여 동맥색전술을 시행하였다. 시술 이후 색전술 후 중후군 및 폐렴으로 2주간의 항생제 치료 이후 양호한 상태로 퇴원하였고 2년간 외래를 통한 관찰 결과 특별한 합병증은 없었다. 최근의 여러 가지 보고를 통해 체동맥 폐순환에 의한 합병증으로 치료의 적응증이 있는 경우 동맥색전술이 우선적인 치료법으로 고려될 수 있을 것으로 보인다. 그리고 섭식동맥의 크기가 커서 기존의 코일 색전술시 합병증의 발생위험이 높은 경우, Amplatzer 혈관폐색장치를 경피적 색전술이 유용하게 사용될 수 있을 것으로

Carbon thin-films/SiOx nanowires complex using a polyvinylchloride (PVC) solution for lithium-ion batteries

김지현,이영석,이순창 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.27 No.-

Carbon thin-films/SiOx nanowires (C/SiOx NWs) complex were fabricated by combining a simpleelectrospinning process combined with a carbon heat treatment method using a polyvinylchloride (PVC)solution as organic precursor. This material was investigated for use as the anode in lithium rechargeablebatteries. The specific capacity of C/SiOx NWs complex have exhibited 600 mA h/g when first cycled at0.1 C rate which was higher than that for C/silica nanoparticles (C/silica NPs) complex, and the reversiblecapacity for the C/SiOx NWs complex of approximately 360 mA h/g was retained after 30 cycles. The SiOxNWs exhibited normal reversible capacities, which are adaptable in LIB.

학생들의 수학 학습 동기 촉진에 대한 고찰 : 유기체적 접근을 중심으로

김지현,오영석 고려대학교 교과교육연구소 2020 교과교육연구 Vol.13 No.1

The purpose of the study is to theoretically consider mathematics learning motivation on the basis of organismic approach. For this purpose, we examined the operational definitions of learning motivation, the factors to improve mathematics learning motivation, and the teaching strategies to foster students’ mathematics learning motivation on the basis of organismic approach. As a result of the study, based on the operational definition of mathematics learning motivation, The factors to improve mathematics learning motivation included organismic psychological needs for autonomy, competence, and relatedness. The teaching strategies to foster students' mathematics learning motivation suggested forming norms and scaffolding. Through the analysis, we hope that more studies on mathematics learning motivation in school field will be conducted based on the study.

학교장의 진정성 리더십 영향 요인에 관한 통합적 문헌고찰

김지현 한국교육행정학회 2020 敎育行政學硏究 Vol.38 No.3

This integrative literature review identified the characteristics of 15 articles on principal’s authentic leadership and developed the conceptual model categorized as individual factors, organizational factors and relational factors influenced by the authentic leadership. Torraco’s(2005, 2016a, 2016b) approach served as the methodological framework of this research. The characteristics of this literature were synthesized according to author, publication year, article type, research purpose, research type, methodology, scale, statistical method and sample. Next, the individual factors as the outcomes influenced by principal’s authentic leadership were job satisfaction, organizational adaptability, job performance, organizational commitment, teaching commitment, teacher efficacy, subjective career success, self-directed learning ability, followership, informal learning activity, teacher’s calling and psychological well-being. The organizational factors were organizational culture, organizational climate, organizational performance and collective teacher efficacy. The relational factors were principal-teacher exchange, teachers‘ empowerment, teachers‘ trust in school principal and trust relationship. For further approach research that explored the relationship between antecedents and authentic leadership was required. We concluded by making suggestions for the future direction of research on the topic. 본 연구의 목적은 교육기관을 대상으로 수행된 학교장의 진정성 리더십에 관한 문헌을 고찰하여 일반적 특성을 도출하고 영향 요인을 통합적으로 구명하는 데 있다. 이를 위하여 Torraco(2005, 2016a, 2016b)의 통합적 문헌고찰 방법론에 따라 최종적으로 선정된 논문 총 15편을 분석하였다. Gardner 외(2011) 및 이정환과 박한규(2013)의 연구모형을 토대로, 학교장의 진정성 리더십이 영향을 미치는 요인을 개인차원 요인, 조직차원 요인, 관계차원 요인으로 범주화한 후 종합적으로 분석하였고 그 결과는 다음과 같다. 우선 학교장의 진정성 리더십에 관한 일반적 특성은 연구자, 발표연도, 논문유형, 연구목적, 연구유형, 연구방법, 측정도구, 분석방법, 연구대상의 준거를 설정하여 자료를 추출하였다. 다음으로 진정성 리더십이 영향을 미치는 개인차원 요인으로 직무만족, 조직적응, 직무성과, 조직몰입, 교직헌신, 교사효능감, 주관적 경력성공, 자기주도 학습능력, 팔로워십, 무형식 학습활동, 소명의식, 심리적웰빙을 제시하였고, 조직차원 요인으로 조직문화, 조직풍토, 조직성과, 집단적 교사효능감을, 관계차원 요인으로는 학교장-교사 교환관계(LMX), 교사임파워먼트, 학교장신뢰, 교장-교사 신뢰관계를 제시하였다. 한편 학교장의 진정성 리더십과 결과변인 간의 관계를 검증한 연구가 중심이어서 향후 진정성 리더십의 선행변인에 관한 연구가 수행될 필요가 있다. 이러한 연구 결과에 기초하여 논의하였고 후속연구를 위한 방향에 대해 제언하였다.

사이버불링 유형의 결정요인(언어폭력, 폭로, 소외, 아이디 도용)에 관한 연구

김지현,김하균 사단법인 미래융합기술연구학회 2021 아시아태평양융합연구교류논문지 Vol.7 No.5

Cyberbullying refers to the behavior of intentionally, continually, and repetitively harassing others in cyberspace by using various information devices such as mobile phones, computers, and tablets. Unlike offline bullying or violence, cyberbullying is even more serious because it takes place on the Internet. The nature of cyberbullying is even more serious because it is not constrained by time and place and does not face to face. It is easily attempted due to the anonymity of the Internet and is expressed in a more radical form. In addition, it is characterized by being repetitive and continuous, not one-off. For the basic statistical analysis of the questionnaire, the statistical package SPSS 22.0 was used. For hypothesis testing, the centralized validity and discriminant validity were verified using the structural equation package Smart PLS 2.0. The purpose of this study is to analyze the relationship between cyberbullying styles and cyberbullying in cyberspace. The factors that determine the type of cyberbullying were divided into verbal violence, disclosure, alienation, and identity theft. The results of the study is as follows. First, verbal violence had a significant effect on ethical consciousness. Second, revelation had a significant effect on ethical consciousness. Third, alienation had a significant effect on ethical consciousness. Fourth, identity theft had a significant effect on ethical consciousness. Fifth, ethical awareness had a significant effect on cyber abuse. 사이버불링이란 휴대전화, 컴퓨터, 태블릿 등의 다양한 정보기기를 이용하여 사이버공간에서 의도적, 지속적, 반복적으로 다른 사람을 괴롭히는 행동을 의미한다. 사이버 괴롭힘은 오프라인 괴롭힘이나 폭력과 달리 인터넷상에서 이루어지기 때문에 더욱 심각하다. 사이버 괴롭힘의 특성은 시간과 장소의 제약을 받지 않고 직접적인 대면을 하지 않기 때문에 더욱 심각하다. 인터넷의 익명성으로 인해 쉽게 시도되며 더욱 과격한 형태로 표현되기도 한다. 또한, 일회성이 아닌 반복적, 지속으로 행동한다는 특징을 보인다. 설문지의 기본통계분석을 위해 통계패키지인 SPSS 22.0을 사용하였다. 가설검정을 위해 구조방정식 패키지 Smart PLS 2.0을 사용하여 집중 타당성과 판별 타당성을 검증하였다. 본 연구는 사이버공간에서 사이버불링 유형이 윤리의식과 사이버 가해의 영향 관계를 분석하는 데 연구의 목적이 있다. 사이버불링의 유형을 결정하는 요인으로 언어폭력, 폭로, 소외 및 아이디 도용으로 나누었다. 본 논문의 연구에 비추어 본다면 논문의 연구결과는 다음과 같다. 첫째, 언어폭력은 윤리의식에 유의한 영향을 미쳤다. 둘째, 폭로는 윤리의식에 유의한 영향을 미쳤다. 셋째, 소외는 윤리의식에 유의한 영향을 미쳤다. 넷째, 아이디 도용은 윤리의식에 유의한 영향을 미쳤다. 다섯째, 윤리의식은 사이버 가해에 유의한 영향을 미쳤다.

Adherence of PARP inhibitor for frontline maintenance therapy in primary epithelial ovarian cancer: a cross-sectional survey

김지현,이유미,김다영,김시내,서상수,강석범,박상윤,임명철 대한부인종양학회 2024 Journal of Gynecologic Oncology Vol.35 No.1

Objective: To identif y the adherence rate to poly (ADP-ribose) polymerase (PARP) inhibitorsand identif y factors contributing to the deterioration of adherence at our institution. Methods: The adherence rate to PARP inhibitors was calculated using self-reported Adherenceto Refills and Medications Scale questionnaires from a cross-sectional sur vey. Multivariablelogistic regression analysis was performed to identif y the factors that affected adherence. Results: Of the 131 respondents, 32 (24.4%) showed non-adherence to PARP inhibitors. In the multivariable logistic regression analysis, unemployed or retired status (odds ratio[OR]=4.878; 95% confidence inter val [CI]=1.528–15.572; p=0.008), patients receivingniraparib (OR=3.387; 95% CI=1.283–8.940; p=0.014), and a lower score on the quality-of-life assessment (EORTC-QLQ-OV28), which reflects a better quality of life (QOC) with alower symptom burden (OR=1.056; 95% CI=1.027–1.086; p<0.001) were associated with highadherence to PARP inhibitors. Conclusion: Approximately one-fourth of patients with ovarian cancer are non-adherent toPARP inhibitors as maintenance treatment for newly diagnosed advanced ovarian cancer. Theoccupational status, type of PARP inhibitor, and QOC may affect adherence to PARP inhibitors.

Novel Potentially Biobased Copolyesters Comprising 1,3-Butanediol, 1,4-Cyclohexanedimethanol and Dimethyl Terephthalate; Effect of Different Catalysts on Polymerization Behavior

김지현,김무송,김형준,김종량,안철희 한국고분자학회 2022 Macromolecular Research Vol.30 No.1

A new series of potentially biobased copolyesters, poly(1,3-butylene 1,4- cyclohexylenedimethylene terephthalate) (P13BCT) based on 1,3-butanediol (1,3-BD) with 1,4-cyclohexane dimethanol (CHDM) was synthesized. Dibutyltin oxide (DBTO) and titanium(IV) butoxide (TBT) catalysts were employed, and the resulting copolymers were analyzed to evaluate the efficacy of each catalyst on the copolymerization. DBTO produced low molecular weight oligomers with M n ranging from 2,000 to 2,500, whereas TBT produced high molecular weight copolymer M n ranging from 8,700~21,900. GC-MS analysis was performed to identify the by-products during the transesterification process, and side reactions such as dehydration were observed, which were in good agreement with previous results showing the same by-product. The correlation spectroscopy (COSY), heteronuclear single-quantum correlation spectroscopy (HSQC), 1H and 13C NMR analyses revealed that the chain end of P13BCT_Sn was primarily composed of the vinyl end group rather than the hydroxyl group, which was a major contributor to the formation of low molecular weight polymers. The density of P13BCT slightly increased with the addition of 1,3-BD. The T g of P13BCT decreased with 1,3-BD contents from 74℃ to 51℃ due to the enhanced flexibility of the main chain. The thermal stability of the copolyesters was determined using TGA in a nitrogen atmosphere. The copolyesters were stable up to 330-360℃, and the decomposition temperature decreased as the 1,3-BD content increased. Yield strength increased from 39.4 MPa to 43.6 MPa as 1,3-BD content increased; however, Young's modulus and yield strength difference was not statistically significant.