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담론적 제도주의란 무엇인가? 커뮤니케이션 이론 및 연구방법론의 함의
백영민,강현희 한국언론학회 2021 커뮤니케이션 이론 Vol.17 No.2
This study deals with ‘discursive institutionalism,’ a newly suggested and advocated institutionalism since mid-2000s in social scientific disciplines, and how discursive institutionalism can be utilized to enrich our understandings of communication theories and methods. In social sciences before 2000s, three theories of new institutionalism had been introduced and adopted to explain ‘what the institution is’ and ‘how the institution is formed and maintained’: (1) rational choice institutionalism arguing human institutions are the results of human behaviors to maximize private interests with bounded rationality, (2) historical institutionalism emphasizing the influence of the past structure or experience on the working of the present institution, usually termed ‘path dependency,’ and (3) sociological institutionalism highlighting the influence of culture, value, or norm shared and held by social members on the institution based on the logic of appropriateness. Discursive institutionalism is a newly suggested institutionalism emphasizing the role of ideas comprising discourse in the formation and change of the institution in modern societies. After describing the discursive institutionalism, this study introduces several communication studies utilizing discursive institutionalism, and discusses the potential advantages and disadvantages, in terms of theoretical cogency and methodological soundness. 본 논문에서는 2000년도 중반 이후 사회과학에 등장한 ‘담론적 제도주의(discursive institutionalism)’를 소개하고, 커뮤니케이션 이론 및 방법론 관점에서 어떤 의미와 위상을 가질 수 있는지 살펴보았다. 2000년도 이전까지 사회과학에서 소개된 다양한 신제도주의 이론들로서 (1) ‘제한된 합리성’ 개념을 기반으로 경제적 인간관을 근거로 제안된 ‘합리적 선택 신제도주의’, (2) ‘경로의존성’ 개념에 바탕을 둔 ‘역사적 신제도주의’, (3) 인간 활동영역에서 ‘규범·문화의 적절한 적용’을 강조하는 ‘사회학적 신제도주의’를 개략적으로 소개한 후, 새로이 등장한 담론적 제도주의가 기존 신제도주의 이론들과 어떻게 다른지 커뮤니케이션 연구 관점에서 간략하게 논의하였다. 이후 담론적 제도주의가 저널리즘 제도의 등장 및 변화, 미디어 정책담론의 형성·변화 과정, 여론변화, 커뮤니케이션 개입(intervention) 등과 같은 커뮤니케이션 연구분야에 어떤 의미를 가질 수 있을지 논의한 후, 담론적 제도주의를 핵심어로 정성적·정량적 연구방법의 통합가능성에 대해 논의하였다.
백영민,신평수,김종현,박하승,K. Lawrence DeVries,박종만 한국섬유공학회 2019 Fibers and polymers Vol.20 No.11
Currently, continuous polymer fibers are usually manufactured in versatile forms such as, aramid fiber. In thisstudy, continuous polycarbonate (PC) fiber having the uniform diameter was manufactured from a thermoplastic PC resinusing a twin screw extruder. Carbon nanotubes (CNTs) were uniformly dispersed in the PC resin, using a solvent dispersionmethod. The effect of CNT on the mechanical properties of PC fiber was analyzed statistically, using Weibull distribution, bysingle PC fiber tensile test. Dynamic contact angle was measured to compare the surface energies of PC fiber and PC-CNTfiber on the water droplet. The difference in the wetting patterns was also observed by injecting a solvent between two fibers. Tensile strength and Young’s modulus of the PC fiber was significantly increased by the addition of even a small amount ofCNT. This improvement can be attributed to the excellent reinforcing and stress transferring effects of the CNT filler. Composites were made of both types of PC film and PC fiber as a matrix and their impregnation properties were investigatedby inspection of photographs of their cross-sections. The mechanical properties of the two-types of composites were alsocompared by tensile testing. From the cross-sectional fractography and the permeated PC weight, PC fiber type exhibitedbetter impregnation property than the PC film type, and thus resulted in the improved tensile strength.
원위부 내경동맥혈전증 및 진균동맥류파열 합병증을 동반한 치명적 코눈대뇌털곰팡이증
백영민,박혜진,주미,정규윤,김아로,김지은,이혜정,홍근식,조중양,박희경,SONGPAMELA,조용진 대한신경과학회 2015 대한신경과학회지 Vol.33 No.3
Mucormycosis is a rare opportunistic infection caused by fungi of the order Mucorales that typically occurs in patients with diabetes or immunocompromised state. Rhino-orbital-cerebral mucormycosis is the most common type, often has a life-threatening outcome. Mucormycosis has specific vascular tropism complicating mucorthrombosis or mycotic aneurysm. We report a diabetic patient presenting with ophthalmoplegia, orbital necrosis, and contralateral hemiparesis, who suddenly progressed to coma and died of subarachnoid hemorrhage due to the rupture of mycotic aneurysm in distal internal carotid artery.
백영민,신평수,김종현,박하승,권동준,K. Lawrence DeVries,박종만 한국섬유공학회 2018 Fibers and polymers Vol.19 No.8
The mechanical and interfacial properties were evaluated for carbon fiber reinforced composites (CFRC) manufactured using thermally recycled waste carbon fiber and recycled polyethylene terephthalate (PET). The mechanical properties of the recycled fiber were determined and compared to those of neat fibers using the single-fiber tensile test. The surfaces of the recycled and neat carbon fiber were examined and compared using FE-SEM and dynamic contact angle measurements. A goal of the study was to determine the applicability of industrial use of recycled CF and/or recycled PET in CFRC. Mechanical properties were measured using short beam and tensile tests. These properties were observed to be correlated with crystallinity. The interfacial properties between the recycled carbon fibers and recycled PET were evaluated using the microdroplet test. At low temperature residual resin remained on the recycled CFs surface resulting relatively the low interfacial properties. At excessively high temperatures, oxidation occurred, on the CFs surface, which also resulting in relatively poor low mechanical properties. The optimal treatment condition was 500 oC, where the surface was relatively clean and the reduction in mechanical properties was minimized.