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- 저자 : 차현욱 (검색결과 4 건)
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최근 20년간 대구-경북 지역 피부악성종양에 관한 역학적 고찰 : 전반기 10년(1994~2003)과 후반기 10년(2004~2013)간 비교
Background: Incidence of skin cancers is increasing recently and the changes in pattern may be suggested. Nevertheless, there has been little research into the incidence, clinical manifestation and prognosis of skin cancers and their changes in Korea, especially in Daegu and Kyungpook area. Objective: To analyze changes and its pattern of during recent two decades about incidence and clinical patterns including recurrence of skin cancers of university hospital setting located in Daegu city. Methods: We reviewed 1,566 cases of skin cancers from 1994 to 2013 at the Department of Dermatology in Kyungpook National University Hospital (KNUH). We also divided them into first (1994-2003) and second group (2004-2013) to see change over the years. Results: The average incidence of skin cancers among the total number of outpatients was 1.39% through whole study period including 0.38% in the first and 2.10% in the second decade. The highest average incidence was basal cell carcinoma (BCC) (total:1st:2nd = 0.60%:0.16%:0.91%), followed by squamous cell carcinoma (SCC) (0.43%:0.12%:0.65%) and malignant melanoma (MM) (0.22%:0.05%:0.34%). The most common site was the face in every skin cancers in each decade. The recurrence of three major skin cancers (BCC, SCC and MM) was diagnosed in 49 of the 1,402 patients (3.50%). In each disease, the recurrence rate(1st:2nd) was 1.64% (BCC, 4.11%:1.34%), 3.51% (SCC, 11.11%:2.55%), and 8.57% (MM, 4.35%:9.01%) Conclusion: This epidemiological study provided useful information for the changing of incidence and prognosis of skin tumors in Korea, especially in Daegu and Kyungpook area.
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온라인 다이렉트 마케팅에서 정보제공 유형에 따른 개인정보 기입 의도 분석 : 소비자의 조절초점 성향을 중심으로
차현욱 홍익대학교 광고홍보대학원 2021 국내석사
코로나19 바이러스와 비대면을 선호하는 이른바 언택트 소비자가 늘고 있으며 이에 따라 광고도 소비자의 개인정보를 취득하여 비대면 영업 후 결제 하는 언택트 광고가 성행하고 있다. 한편 온라인 결제 시스템이 발달되었음에도 불구하고 즉시결제가 아닌 개인정보를 입력한 후 결제로 이어지는 형식의 광고가 여러 제품 카테고리에서 광고의 방법으로 사용되고 있다. 그러나 이러한 온라인 다이렉트 마케팅에 관한 연구는 미진한 실정이다. 본 연구는 온라인 다이렉트 마케팅의 직접반응 광고에서 정보제공 유형에 따라 개인정보 기입 의도에 어떠한 영향을 미치는지 알아보고자 하였으며 나아가 소비자의 조절초점 성향이 어떤 영향을 미치는지 알아보고자 한다.
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Clarification of characteristic of bimetallic Ir(III)-Pt(II) complexes with alkyl bridging ligands
차현욱 Garduate School, Korea University 2019 국내석사
We investigated excited-state properties of 4′,7′-phenanthrolino-5′,6′:2,3-pyrazine (ppz)-bridged bimetallic complexes, (L)2Ir-ppz-PtCl2 (Ir-ppz-Pt) (L = 2-(4′,6′-difluorophenyl)pyridinato-N,C2 (dfppy)) and [(L)2Ir]2(ppz) (Ir-ppz-Ir). These properties were compared to those of reported dpp bridging complexes, 2,3-bis(2-pyridyl)pyrazine (dpp)-bridged bimetallic complexes, Ir-dpp-Pt and Ir-dpp-Ir. Excited state properties of hetero-bimetallic Ir-Pt systems were very different from those of related Ru-Pt systems with a dpp bridging ligand; while Ru-dpp-Pt displayed 3MLCT emission, Ir-dpp-Pt was relatively silent in emission. Steady-state photochemical studies and photodynamic studies were undertaken for each Ir or Pt center within peripheries of bridging ligands to confirm either energy or electron transfer and at the same time its direction. Thermodynamic driving force of the electron transfer (ET) process from Ir to Pt in the hetero-bimetallic Ir-Pt systems was predicted by the Rehm-Weller equation to be unfavorable for both Ir-ppz-Pt and Ir-dpp-Pt. However, when photo-induced electron transfer (PET) was considered, Ir-dpp-Pt could undergo a facile electron transfer process from Ir to Pt metal center. Such a prediction is well manifested from selective excitation on the bridging ligand.
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