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암모니아가 가토심방근 및 동방결절세포의 활동전압에 미치는 효과
조용수,강석한,김진혁,고상돈,김기순,Cho, Yong-Soo,Kang, Sok-Han,Kim, Jin-Hyuk,Koh, Sang-Don,Kim, Kee-Soon 대한생리학회 1989 대한생리학회지 Vol.23 No.2
Electrophysiological effects of ammonia was studied in the isolated superfused sinus node and atrial muscle cells of the rabbit heart. No significant changes were observed in the overshoot potential (05), maximum diastolic potential (MDP), and action potential amplitude (APA) of the sinus node cells following superfusion with 3.0 mM ammonia, fifty times upper limit of the normal human plasma level. However the action potential duration (APD) of sinus node cells were significantly prolonged after superfusion with 0.6 mM ammonia for 20 min or with 1.2 and 3.0 mM ammonia for 5 minutes. Ammonia in all the concentrations tested decreased the rate of spontaneous firing (RSF) from the sinus node cells. After superfusion of sinus node cells with 0.3 mM ammonia for 20 min, the RSF significantly decreased from 20 min to 25 min after onset of superfusion while a significant decrement in the RSF was observed from 7 min to 30 min following superfusion with 3.0 mM ammonia for S min. On the other hand, the effects of ammonia on the action potential of the rabbit atrial muscle cell were much similar to those on pacemaker cells except that the atrial cell was generally less sensitive to ammonia. The results suggest that ammonia may cause changes in the action potential of the rabbit cardiac cells by the direct action, and that the cardiac effects of ammonia are generally opposite to those of glycine.
유기적 특성을 활용한 워터프론트 디자인 요소에 관한 연구
조용수(Yong-Soo Cho),김기수(Ki-Soo Kim),이정재(Jurng-Jae Yee),도근영(Geun-Young Doe) 한국항해항만학회 2004 한국항해항만학회지 Vol.28 No.1
본 연구는 수변공간의 친환경적 개발 가능성을 모색하는데 목표를 두고 있다. 따라서 본 연구에서는 근대의 기계론적 가치관에 대하여, 최근 과학 분야에서 새로운 발전 또는 친환경적 패러다임으로 등장한 유기적 세계관의 특징에 주목하여 워터프론트의 개발 방향성을 총체성ㆍ복합성ㆍ역동성ㆍ상보성 등 4가지로 설정하였다. 한편 구체적인 워터프론트 디자인 요소를 도시ㆍ건축의 장소적, 의장적, 시각적 특성을 통하여 검토하였다. 그리고 이를 토대로 친환경적 수변공간의 유기적 개발 방향성과 구체적 디자인 요소간의 상관관계 및 사례 제시를 통하여 유기적 특성을 활용한 워터프론트 디자인 요소를 제시하였다. This study is aiming at examining the possibilities to develop eco-friendly waterfront, and discusses characteristics of the organic worldview which has been emerged as new development or eco-friendly paradigm in recent science against the mechanical worldview of modem times. The orientation of waterfront development is characterized as unity, diversity, dynamics and mutuality. In addition, I examined the factors for waterfront design according to the locational, decorativeand visual properties of urbanㆍarchitecture to find out concrete factors of its design. This study suggests the factors for waterfront design making use of organic properties, by examining the orientation for organic development of eco-friendly waterside environment and showing correlation between the factors of specific design, and their examples.
2015년 개정된 식품공전에 따른 국내 시장에서 ‘Bifidus’ 요구르트 제품에 대한 비피더스균수 조사
조용수(Yong Soo Cho),전수현(Su-Hyun Chun),이광원(Kwang-Won Lee) 한국식품과학회 2018 식품과학과 산업 Vol.51 No.1
Yogurt, which has long been consumed as a longevity food, is characterized by a large number of lactic acid bacteria. The sales of yogurt market have increased for the past three years due to research findings that the intestinal microbial environment is closely associated with many human diseases and the well-being trend of recent consumers. The recent trends in the yogurt market have focused to low sugar content, functionalities such as enhanced immunity, and yogurt for freezing. In addition, recent yogurt products tend to be labeled for certain lactic acid bacteria having functionality in their products. Many yogurts have names of specific lactic acid bacteria on their products, such as ‘Activia’ and ‘Bifidus’. We monitored the ‘Bifidus’ products in the market for reflecting its regulated counting in their products required to contain more than 10 million Bifidobacteria according to the revised lactic acid bacteriacounting test of Food Code 2015.
조용수(Cho, Yong-Soo),박규현(Park, Gyu-Hyun) 대한건축학회 2013 대한건축학회논문집 Vol.29 No.7
Walter Benjamin suggested ‘porosity’ as an important factor for making urban life and space when he studied and read european cities especially Napoli. Though the porosity he suggested was a little primitive and “barbarous”, it becomes an important concept to make urban life inhabitable and urban space fertile. We studied a theoretical background for the application of porosity to urban architecture and experimentally probed a readability of the city Busan with it. First, we studied on reading methodology of ‘image’, ‘trace’ and ‘body’ as a basic theory to read the ‘metropolis’. With this background we could establish 4 characteristics of urban porosity, ambiguities of “inside and outside”, “old and new”, “public and private”, and “improvision and theatericality”. With this concept of Benjamin’s porosity we could read and analyse that of Busan Metropolis.
비기하학적 현대건축의 초월론적 추상 - 들뢰즈의 사유를 중심으로 -
조용수(Cho, Yong-Soo) 대한건축학회 2019 대한건축학회논문집 Vol.35 No.5
Non-geometric shapes in contemporary architecture was explained from the transcendental schema of Deleuze with his abstraction theory. In this explanation, the intensity, the movement and change and the sublime were suggested as the expressional elements of the transcendental abstraction related with the artistic sensation of architecture. First, the intensity as a power of sensation which acts to the body before the recognition of brain is mainly expressed with the movement of curved lines of architectural space. Second, the movement of change is expressed as the de-centralized and de-formalized nomadic curve as the line in architectural ‘smooth space’ which has unrestrained orientations. Third, the sublime is expressed in the hugeness, enormousness or sometimes uncanny in void space, which could be contradictively mixed with senses of displeasure and pleasure. The sublime feelings in architecture can be emerging by rationally overcoming the unpleasant senses of contradictive spaces in architecture or urban fabric. This study has explained those expressional elements with the architectural works of Steven Holl, Frank Gehry and Zaha Hadid.