Kim, Jong-Shik;Woo, Jung-Hee;Kim, Jun-Tae;Park, Nyun-Ho;Kim, Choong-Gon
Korean Journal of Microbiology
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v.46
no.1
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pp.1-8
/
2010
New technologies are providing unprecedented knowledge into microbial community structure and functions. Even though nucleic acid based approaches provide a lot of information, metaproteomics could provide a high-resolution representation of genotypic and phenotypic traits of distinct microbial communities. Analyzing the metagenome from different microbial ecosystems, metaproteomics has been applied to seawater, human guts, activated sludge, acid mine drainage biofilm, and soil. Although these studies employed different approaches, they elucidated that metaproteomics could provide a link among microbial community structure, function, physiology, interaction, ecology, and evolution. These approaches are reviewed here to help gain insights into the function of microbial community in ecosystems.
Proceedings of the Botanical Society of Korea Conference
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1995.07a
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pp.57-86
/
1995
Molecular mapping of plant genomes has progressed rapidly since Bostein et al.(1980) introduced the idea of constructing linkage maps of human genome based on restriction fragment length polymorphism (RFLP) markers. In recent years, the development of protein and DNA markers has stimulated interest for the new approaches to plant improvement. While classical maps based on morphological mutant markers have provided important insights into the plant genetics and cytology, the molecular maps based on molecular markers have a number of inherent advatages over classical genetic maps for the applications in genetic studies and/or breeding schemes. Isozymes and DNA markers are numerous, discrete, non-deleterious, codominant, and almost entirely free of environmental and epistatic interactions. For these reasons, they are widely used in constructing detailed linkage maps in a number of plant species. Plant breeders improve crops by selecting plants with desirable phenotypes. However a plant's phenotyes is often under genetic control, positioning at different "quantitative trait loci" (QTLs) together with environmental effects. Molecular maps provide a possible way to determine the effect of the individual gene that combines to produce a quantitative trait because the segregation of a large number of markers can be followed in a single genetic cross. Using market-assisted selection, plants that contain several favorable genes for the trait and do not contain unfavourable segments can be obtained during early breeding processes. Providing molecular maps are available, valuable data relevant to the taxonomic relationships and chromosome evolution can be accumulated by comparative mapping and also the structural relationships between linkage map and physical map can be identified by cDNA sequencing. After constructing high density maps, it will be possible to clone genes, whose products are unknown, such as semidwarf and disease resistance genes. However, much attention has to be paid to level-up the basic knowledge of genetics, physiology, biochemistry, plant pathology, entomology, microbiology, and so on. It must also be kept in mind that scientists in various fields will have to make another take off by intensive cooperation together for early integration and utilization of these newly emerging high-techs in practical breeding. breeding.
'Pattern' is the term that is frequently used in the aspects of history, society, and science. It always appears in the remains or relics of the age of civilization when recording was started, and its evaluation and value differ by time. Patterns in the ancient civilization were symbolic, social, and spatially crucial. However, after the modernization, they were considered to be immoral and unnecessary, so the range of their significance came to reduce. Due to the development of science, ornament patterns lost the limitation of its range of use along with new interpretation of them. Especially with the advent of new scientific theories such as the evolution theory from the biological aspect, quantum mechanics, and super string theory, morphological possibilities more than the human scale perceived by men came to be discovered. Living organisms maintain their lives through patterns, structures, and processes in order to produce a system alive. Among them, patterns are the organization of relations determining the characteristics of the system. The present patterns may correspond to this meaning. The pattern in a space is the matter of how to relate the components after all. In a space, however, there are numerous components mingled with one another. If these tasks are conducted as analogue work, it will take a lot of time and effort. However, if digital media are utilized to perform the tasks like analysis, generation, or fabrication, it will produce a result with higher precision and efficiency. In this sense, parametric modeling is quite useful media. Opening morphological variation, it realizes more possibilities, connects conveniently the relations between complex components composing a space, and helps produce creative patterns.
Kim, Nam-Woo;Lee, Seung-Jae;Lee, Joon-Jae;Lee, Byung-Gook
Journal of Korea Multimedia Society
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v.11
no.3
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pp.373-385
/
2008
The evolution of input device for computer has pretty much slowed down after the introduction of mouse as feinting input device. Even though stylus and touch screen were invented later on which provide some alternatives, all these methods were designed to have close range interaction with computer. There are not many options available for user to interact with computer from afar, which is especially needed during presentation. Therefore, in this paper, we try to fill the gap by proposing a laser pointer interaction system to allow user to give pointing input command to the computer from some distance away using only laser pointer, which is cheap and readily available. With the combination of image processing based software, we could provide mouse-like pointing interaction with computer. The proposed system works well not only in currently plane screen, but also in flexible screen by incorporating the feature of non-linear coordinate mapping algorithm in our system so that our system can support non-linear environment, such as curved and flexible wall.
International Journal of Vascular Biomedical Engineering
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v.1
no.1
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pp.13-23
/
2003
Backgrounds: The present study in angulated coronary stenosis was to evaluate the influence of velocity and wall shear stress (WSS) on coronary atherosclerosis, the changes of hemodynamic indices following coronary stenting, as well as their effect of evolving in-stent restenosis using human in vivo hemodynamic parameters and computed simulation quantitatively and qualitatively. Methods: Initial and follow-up coronary angiographies in the patients with angulated coronary stenosis were performed (n=80). Optimal coronary stenting in angulated coronary stenosis had two models: < 50 % angle changed(model 1, n=43), > 50% angle changed group (model 2, n=37) according to percent change of vascular angle between pre- and post-intracoronary stenting. Flow-velocity wave obtained from in vivo intracoronary Doppler study data was used for in vitro numerical simulation. Spatial and temporal patterns of velocity vector and recirculation area were drawn throughout the selected segment of coronary models. WSS of pre/post-intracoronary stenting were calculated from three-dimensional computer simulation. Results: Follow-up coronary angiogram demonstrated significant difference in the percent of diameter stenosis between two groups (group 1: $40.3{\pm}30.2$ vs. group 2: $25.5{\pm}22.5%$, p<0.05). Negative WSS area on 3D simulation, which is consistent with re-circulation area of velocity vector, was noted on the inner wall of post-stenotic area before stenting. The negative WSS was disappeared after stenting. High spatial and temporal WSS before stenting fell into within physiologic WSS after stenting. This finding was prominent in Model 2 (p<0.01) Conclusions: The present study suggests that hemodynamic forces exerted by pulsatile coronary circulation termed as WSS might affect on the evolution of atherosclerosis within the angulated vascular curvature. Moreover, geometric change, such as angular difference between pre / post-intracoronary stenting might give proper information of optimal hemodynamic charateristics for vascular repair after stenting.
Proceedings of the Korean Operations and Management Science Society Conference
/
1995.04a
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pp.847-864
/
1995
In this paper we present an integrated methodology for strategic planning in telecommunications standardization. Especially this paper focuses on the method of setting priorities for telecommunications SWAs(Standardization Work Areas) and related SWls(Standardization Work Items). To make a strategic plan for telecommunications standardization in which usually includes prioritization, resource allocation, standardization schedule for each SWA is based on prioritization of SWAs. Our methodology integrated various existing methods including the Analytic Hierarchy Process(AHP) and a modified Delphi technique. Recently, rapid technology evolution in telecommunications fields increases the necessity of developing more and more new standards. Also increased complexity of those technologies makes standards more complicated, more specified and more thick than the past ones. As a result, the number of SWAs and SWIs are being increased constantly. Furthermore, rapid telecommunication environment changes such as deregulation, liberalization, privatization, regionalization, and globalization surrounding standardization bring about new challenges and opportunities. Due to all these trends, strategic planning for telecommunications standardization grows more and more important. To cope with these challenges and also to make the more efficient use of the limited standardization resources including time, financial, human resources, we suggest more logical and rational approach that will be a backbone of strategic plan for telecommunications standardization. The telecommunications standardization planning process involves a MCDM(Multi-Criteria Decision Making) process. The Analytic Hierarchy Process(AHP) is a kind of MCDM approaches. Our method is based on a combination of a modified Delphi technique and an application of AHP(Liberator's spreadsheet model). Analyzed data from Delphi technique is used as inputs to ABP. In addition, we also focus on the technique how to combine group judgments and to handle a large number of comparisons. We present analyzed results including Pilot and Full Scale Survey according to the proposed process. The result of this study will be useful input for telecommunications standardization policy making and practical implementation.
The Journal of Korean Institute of Communications and Information Sciences
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v.2
no.1
/
pp.2-13
/
1977
Along with the evolution of social phenomena such as politics, econmics, and culture, communication that is also one of social activities or social procedures has been developed as an independent science with integral characteristics.Originally formed in the United States of America in 1950s, the science of communication is now greatly spreading all over the world. Indebted to this world tendency, Korean Institute of Communication Science was inaugulated in February of 1575, acknowledging the need of accepting this science in Korea with the objectives to secure social and national development. The science of communication is to analyze its internal elements and search for the scientific trait and their relativities. Moreover, this science aims to contribute to human welfare by means of systematizing communication activities intimately related with various adjoining sciences. In other words, the science of communication is to logically systematize the principles and theories based on communication practices and to a great extent cultivate the applying theory and efficient method of communication.Accordingly, 1 would like to suggest that many scholars, educators, practitioner, and managers interested in communication fields have a new acknowledgment and outlook for· communication andeavor to make it scientific and self - independent .
The purpose of this research is to rethink Alvar Aalto's architecture on the basis of the aesthetic concept of play. This attempt is valid because he had asserted the importance of play in his design. But more fundamentally, his critical view of the instrumentalised rationalism implied the idea that a human being is "Man the Player" as well as "Man the Thinker", of which theory was elaborated in Johan Huizinga's Homo Ludens (1938). Premised on it, this paper investigated the evolution of the play idea in aesthetics and located Aalto's concept within the map. Summing up, his play was an intuitively grasped desire opposed to a rational requirement, which leads to a dialectical synthesis. This schema is similar to that of Schiller, in which Spiel reconciles the reason and the sense. However, Aalto's play could be differentiated into the "astonishingly rational" and "a jest", each of which roughly corresponds to the Spieltrieb (play impulse) and the sinnliche Trieb (sensuous impulse) in Schiller's thinking. On the other hand, Aalto's architecture illustrates play that could be interpreted as the overflow of surplus energy. This play is the very concept that can bridge the gap in the form-function formula of modern architecture. Aalto's play idea seemed to basically originate from his personality but its value must be confirmed by the Finnish litterateur Yrjo Hirn as Aalto mentioned in his statements (1953 & 1972). It appears that Aalto's play concept was materialised in architecture through his typical design language, such as the undulating wall, the aperspective space, the imitation of nature and the collage of heterogenous elements. However, we should be careful not to reductively analyse the application of play in practise. As Huizinga's comprehensive theory suggests, the play element exists in any cultural areas including any architectural activities. In conclusion, this paper argues that Alvar Aalto the Homo Ludens presented the possibility of critical rationalism in modern architecture by imbuing dry modernism with "the life enhancing charm" of "the art of play".
Kim, Kwang-Soo;Lee, Eun-Ju;Lee, Seung-Hoon;Seo, Tae-Gun;Jang, Ik-Soon;Park, Jun-Soo;Lee, Je-Ho
BMB Reports
/
v.42
no.1
/
pp.22-27
/
2009
Replication Protein A (RPA) is a single stranded DNA-binding protein involved in DNA metabolic activities such as replication, repair, and recombination. RPA-Interacting Protein $\alpha$ ($RIP{\alpha}$) was originally identified as a nuclear transporter of RPA in Xenopus. The human $RIP{\alpha}$ gene encodes several splice isoforms, of which $hRIP{\alpha}$ and $hRIP{\beta}$ are the major translation products in vivo. However, limited information is available about the alternative splicing of $RIP{\alpha}$ in eukaryotes, apart from that in humans. In this study, we examined the alternative splicing of RIP{\alpha} in the Drosophila, Xenopus, and mouse system. We showed that the number of splice isoforms of RIP{\alpha} was species-specific, and displayed a tendency to increase in higher eukaryotes. Moreover, a mouse ortholog of $hRIP{\alpha}$, $mRIP{\beta}2$, was not SUMOylated, in contrast to $hRIP{\alpha}$. Based on these results, we suggest that the $RIP{\alpha}$ gene gains more splice isoforms and additional modifications after molecular evolution.
In this study, we consider the evolved interactivity at the Artificial Life Art beyond 'open interactivity' as 'closed relationship' between viewer/participant and artwork by immersive and interactive features of digital media art. In order to consider this evolved interactivity, we survey the theory of artificial life of which result of many studies like biology and computational science. And then we analysed characteristics related artistic context of artificial life at the autonomy and emergent behavior of artificial life. Especially, we research the artworks of interaction with ecologies and of living in outside(not in- silico) among the artworks of officially adopting an artificial life arts in 'VIDA : Art and Artificial Life International Awards'. And we are going to understand the relationship of emotional subjects between viewer/participant and artwork, and a step further to understand the diverse relationship of symbiosis and co-evolution of the technology and human.
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