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서영철,임성우,신길조,이원철 한국한의학연구원 1996 한국한의학연구원논문집 Vol.2 No.1
This study was carried out to investigate the tracheal muscle relaxation of water extracts of three kinds of Coptis thizoma and also compare of Coptis rhizoma, in isolated rat tracheal smooth muscle. As a result, Coptis chinensis showed significant tracheal muscle relaxation on KCI-induced contraction and more markedly on carbachol-induced contraction in close-dependent manner. Coptis japonica exhibited also tracheal muscle relaxation on both contraction with slightly weaker activities than those of Coptis chinensis. The activities of the root hair of Coptis chinensis were the most weakest in three thizomas. Berberine and palmatine had strong tracheal muscle relazation, especially, on carbachol-induced contraction, however, their activities on KCI-induced contraction were weaker than that of Coptis chinensis. The inhibitory effects of three kinds of Coptis rhizoma on the contraction by KCI and carbachol were inbestigated to explain the process of their tracheal muscle relaxation. All rhizomas inhibited the contraction by both agents, among them, Coptis japonica showed the most significant effect, so indicating the tracheal muscle relaxation of Coptis rhizoma may be concerned with the blocking of muscarine receptor and Ca²+ channel.
Post-postmodern Theories, Modernism Redux and the Post-Postmodern Framework
서영철 한국영어영문학회 2020 영어 영문학 Vol.66 No.1
Since the 1990s, postmodernism has undergone the distinctively visible changes in the face of globalization and digital technology, as some theorists and critics claim that postmodernism is dead. Consequently, they have proposed many post-postmodern theories on this issue: remodern�ism, neomodernism, trans-postmodernism, performatism, altermodernism, digimodernism, metamodernism, transmodernism, and post-postmodernism not as a comprehensive term but as a cultural theory. As revealed from the rise and development of post-postmodern theories, they emerge as a result of the return to modernism. Therefore, modernism redux is examined to discover how it interacts with postmodernism in each theory: the return to modernism; and the integration or synthesis of modernism and postmodernism. In this context, metanarratives, one of the modern attributes, work as a common factor in the post-postmodern theories. From this study in terms of metanarratives, the post-postmodern framework, while echoing Charles Jencks’s critical modernism and Philip Galanter’s complexism, is expected to reach the goal of unveiling how the modern and postmodern attributes are integrated and synthesized into a new cultural entity on a new dimensional stage through interaction at the time of a paradigm shift. In consequence, the post-postmodern framework is revealed as an evolutionary system where the modern and postmodern attributes operate to create post-postmodernism, a new cultural environment. In addition, this mechanism of evolutionary process within the post-postmodern framework will continue to shape the cultural sensibilities years to come.
삼종(三種) 황연류(黃連類)의 기관지(氣管支) 평활근(平滑筋) 이완효과(弛緩效果)에 관(關)한 연구(硏究)
서영철,임성우,신길조,이원철,Suh, Young-Chel,Lim, Seong-Woo,Shin, Gil-Cho,Lee, Won-Chul 한국한의학연구원 1996 한국 한의학연구소 논문집 Vol.2 No.1
This study was carried out to investigate the tracheal muscle relaxation of water extracts of three kinds of Coptis rhizoma and also compare their effects with berberine and palmatine, which are the important alkaloid components of Coptis rhizoma, in isolated rat tracheal smooth muscle. As a result Coptis chinenis showed significant tracheal muscle relaxation on KCI-induced contraction and more markedly on carbachol-induced contraction in dose-dependent manner. Coptis japoinin exhibited also tracheal muscle relaxation on both contraction with slightly weaker activities than those of Coptis chinensts. The activities of the root hair of Coptis chinensis were the most weakest in three rhizomas. Berberine and palmatine had strong tracheal muscle relaxation, especially, on carbachol-induced contraction, however, their activities on KCI-induced contraction were weaker than that of Coptis chinenis. The inhibitory effects of three kinds of Coptis rhizoma on the contraction by KCI and carbachol were investigated to explain the process of their tracheal muscle relaxation. All rhizomas inhibited the contraction by both agents, among them, Coptis japonica showed the most significant effect, so indicating that the tracheal muscle relaxation of Coptis rhizoma may be concerned with the blocking of muscarine receptor and $Ca^{2+}$channel.
A Search for the (Postpostmodern) Framework of Everything and the Epic of Evolution
서영철 새한영어영문학회 2015 새한영어영문학 Vol.57 No.3
The early postpostmodern art movements demonstrate their search for the return of modern sensibilities like reality and universality, and the rejection of postmodern art. Seen from this line of discussion on the transition of social and cultural sensibilities, Jencks’s cosmogenic schema of modernisms in a continuum is a framework for the new scene of transition, with the constituting components of performativity through (re)combination, and inter(re)action. Within this framework, the hierarchical stages of cosmic evolution of the inorganic as well as the organic worlds—space and time—from the Big Bang to human culture have evolved through complexity/complexification: time of diachronicity and synchronicity simultaneously (arrow of time and Fraser’s hierarchically nested time) and space (of horizontal and vertical stages of matter/space in evolution). Now in the twenty-first century, the framework of directionality and integration can work as the framework of everything at every level of cosmic evolution, including humans.
Post-Postmodern Theories: A New Modernity
서영철 새한영어영문학회 2011 새한영어영문학 Vol.53 No.3
Cultural sensibilities beyond postmodernity have appeared in the constantly changing society. What, then, comes after postmodernism? Roughly since the year 2000, each post-postmodern theory has approached the issue beyond postmodernism with its unique perspective in its refutation of postmodernism. First, as seen from a semiotic/dialectic perspective, performatism and critical modernism are future-oriented, but still reminiscent of modernism. Second, hypermodernism and supermodernity present society and culture against postmodernism, toward modernity, in terms of excess. Third, digimodernism and automodernity have strong links with modernity produced by digital innovations. From the three categories of post-postmodern theories, a new modernity as the post-postmodern common factor is deduced. First, they reclaim certain modern tenets as seen from a semiotic/dialectic perspective. Second, post-postmodern theories are formulated in their adoption of cultural sensibilities produced by digital innovations. As a result of change, postmodernism as cultural concept has lasted only a shorter period. On the other hand, postmodernity will not disappear for several hundred years just as modernity still lives on under the postmodern circumstances. If so, who can offer any definite answer for what post-postmodernism is? Or should we wait more for a definite theory explaining what the current post-postmodernism is?