Son, Dae Gu;Kim, Hyun Ji;Kim, Jun Hyung;Han, Ki Hwan
Archives of Reconstructive Microsurgery
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v.13
no.1
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pp.43-50
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2004
One of the major advantages of microsurgical reconstruction for defects of the hand is that these techniques allow for selection of the most ideal tissue to reconstruct a particular defect, thus optimizing the functional and aesthetic outcome. The dorsalis pedis free flap is an excellent reconstructive tool for various hand reconstructions. It has a reliable vasculature with vessels that are relative large on a long pedicle. It provides thin pliable tissue and be innervated by deep peroneal nerve. Coupled with its thinness and pliability, it is ideal for innervated cover of critically sensitive area, especially such as the hand. Thus it can be used as a cutaneotendinous flap, or an osteocutaneous flap. Otherwise, the major criticism with this flap is related to its uncertain vascularity and the donor defect. It is the purpose of this paper to outline our technique of flap elevation and donor site closure and to indicate our current use of this flap in hand reconstruction. We have treated 10 cases (6 burn scar contracture cases, 4 acute hand trauma cases) of hand reconstruction from Dec. 3, 1997 to Mar. 4, 2004 using dorsalis pedis free flap. The key points for sucess in terms of a viable flap and acceptable donor site are the preservation of the critical dorsalis pedis-first dorsal metatarsal vascular axis and the creation of a viable bed for grafting. In addition, we substituted preserved superficial fat skin graft for split thickness skin graft and wet environment was offered for good graft take. Preserved superficial fat skin is defined as composite graft containing epidermis, dermis and superficial fat layer. With sufficient care in flap elevation and donor site closure, a good graft take of preserved superficial fat skin under wet environment can be achieved with no functional disability and minimal cosmetic deformity in donor site. This flap has proved itself to be a best choice for hand reconstruction.
The results of this research on the diversity, zonation of vegetation and micro-topography by TWINSPAN classification and DECORANA ordination, executed with Sinduri coastal dunes of Korea, are as follows: The vegetation and micro-topography of coastal dunes formed a noticeably clear zonation structure. The beach in the direction of the coastline saw a lot of appearance of Salsola komarovi and the primary dune was dominated by Elymus mollis. Imperata cylindrica var. koenigii and Carex pumila formed a colony at flat area of the sand hills and Calamagrostis epigeios was widely distributed at the wet slack. The secondary dune was dominated mostly by Ischaemum anthephoroides and Imperata cylindrica var. koenigii, and it showed an aspect of the distribution of Vitex rotundifolia and Rosa rugosa. while the hinterland hillside in the direction of inland was dominated by Robinia pseudo-acacia and Pinus thunbergii. However, Carex kobomugi, known as the pioneer species of the coastline-bound areas at the coastal dune, dominantly occupied the secondary dune of the rear side and continentally-inclined Miscanthus sinensi and Oenothera biennis of naturalized plant were irregularly spread over the whole of the coastal dune, so the stabilization of micro-topography seemed to be uncertain. Particularly, Miscanthus sinensis was predicted to be changed into dominant species of the primary dune, and secondary dune and slack having a commonly high species gathering inclination with the more progress of stabilization of the coastal dune. The expansion of sand hill wetlands and roads located between the primary dune and secondary dune was judged to have an effect on the zonation structure of plant distribution.
Shipping companies involved in sea transportation service are exposed to uncertainty due to its volatile business environment. It is crucial that shipping companies take effective strategies to cope with uncertain business environments and to achieve high business performance. Using Porter's generic strategy, this study investigates the relationships between environmental uncertainty and competitive strategies, and the impact of competitive strategies on firm's business performance. To test hypotheses, OLS regressions and Tobit analysis were conducted on Korea shipping companies who provide global sea transportation service. The findings of this study can be summarized as follows. First, variation of environmental uncertainty affects cost-leadership strategy and differentiation strategy. Diversity of environmental uncertainty affects differentiation strategy, but not cost-leadership strategy. Second, firms attain business performance by using the cost-leadership strategy. That is, shipping companies can achieve high business performance by reducing their operating costs in the entire process of transportation service.
Journal of the Korean association of regional geographers
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v.15
no.5
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pp.671-687
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2009
This paper aims to link the development strategy of a local government(Guri-si, Kyunggi-do) to a spatial decision support system that is in the early stages of implementation and testing. Spatial Decision for a local governmental authority typically involves multiple stakeholders. To any specific regional problem, stakeholders often have various levels of knowledge and experiences about it, that yield conflicting views. In this point of view, the enhanced access to information can bring the decision process to solve the problem throughout more public participation. Recently, Urban development study was required to improve the decision making of public participation form. This study aim to investigate an analysis local government of Guri-si, can be supported as the suggestion of decision making system. Guri-si has been argued that it would improve citizen's life quality intent theme 'by historical tourism in general dimension' promote region identity, environment friendly and transportational strength, by reflecting various plan of urban development and it executed strategy. There are increasing interest in citizen participation and practical using of policy decision making to respond to uncertain environment and systematic exploration of local government. Focused on the contents of public participation decision making, it is important to investigate how to analysis urban development strategy and geographic information relationship for useful. The paper concludes with a discussion of current issues encountered during development and implementation of spatial decision making(or support) system for the local administrative authority.
This article aims to understand the process of effective leadership in the Community Care Centers for the Disabled(CCCD). Using a qualitative approach and the concept of 'Sensemaking', a term introduced by Weick (1995), I described and explored the process of leadership. Sensemaking enables leaders to have a better grasp of what is going on in their environments. Sensemaking theory offers a perspective on leadership that resolves successfully complex situations surrounding the CCCD. The CCCDs face the environmental changes such as a paradigm shift of disability and a rivalry system with private services. In this time of uncertain change, the CCCDs are in need of leadership of the executives who could reduce complexity with shared meaning. Data were collected over 5 weeks from the 6 CCCDs, through semi-structured interviews, with practitioners, middle managers and chief executives. The interview scripts were thematically analyzed through Atlas-ti programme. The findings showed three subjects, the people's perception of environment, organizational visioning and interactions among post positions. Even though the 6 CCCDs were under the same environment, the perceptions and the enactments of the practitioners were influenced by the chief executives' sensemaking. The important factors of the chief executives' sensemaking were the daily interaction as well as ongoing reflection on their experiences.
Most of researchers and business futurists agree that traditional organizational designs are inadequate for coping with today's turbulent and increasingly networked world. Executives in small firms find that their organizations must tap into an extended network of partners to achieve the scale and power needed to succeed in industries dominated by large, global firms. As they attempt to build lean yet agile businesses, these executives are finding that they no longer rely on gut instinct alone. Neither can they simply copy organizational model that worked in the past. They must understand how organizational design choices influence operational efficiency and flexibility and, even more important, how to best align the organization with the environment and the strategy chosen to quickly and effectively sense and respond to opportunities and threats This research examines the capabilities required to build businesses that can survive and prosper in today's fast-faced and uncertain environment. The insights presented in this research have emerged from over 30 years of work with hundreds of executives and entrepreneurs as they struggled to build businesses that could cope with the demands of a rapidly changing, networked global economy. The insights from this research suggest that IT is an important enabler for developing the best capabilities required for success.
The style of leadership and leader's competence are expected to be an important role in the rapidly changing and uncertain circumstances of the business environment. In particular, rapid change of business environment requires organizations to innovate, and appropriate innovation can have a direct impact on an organization's competitive advantage and sustainability. In this regard, this study focused on transformational leadership as a factor that improves innovative behavior. In addition, the mediating effect of self-efficacy was verified in the process of transformational leadership leading to innovative behavior. Furthermore, the moderated mediating effect of psychological safety was also verified. To verify hypotheses, this study conducted a survey on 307 public officials who work in Chinese public institutions. The result was found that transformational leadership had a positive effect on innovative behavior by mediating effect of self-efficacy. However, contrary to the expectations of this study, the moderated mediation effect of psychological safety was found to be insignificant. The moderating effect of psychological safety showed an insignificant effect. It showed showed the different results from previous studies. In relation to these results, theoretical and practical implications were presented in this study. Overall, this study presented a plan to increase innovative behavior and verified the research model. In addition, the directions of future research for innovative behavior were presented.
Unlike advancements on land, the maritime industry has been slow to embrace new technologies, primarily due to user apprehension toward unproven innovations in the development process. The existing paradigm of technology development, marked by expert-oriented and laboratory-centric test environments, often leads to a stagnation of progress at the research stage, as the applicability of the technology remains uncertain. This study departed from the conventional research system and introduced a novel methodology known as a "living lab." This approach aimed to ensure applicability by actively involving field-oriented users throughout the entire lifecycle of technology development, encompassing planning, development, verification, and evaluation. The presentation of a plan for the construction and operation of such a living lab in this study is expected to contribute to establishing an efficient experimentation system for ships that can reflect user opinions in the future and to secure technology applicability in the maritime field.
Landslides on hillside slopes with shallow soil cover over a sloping bedrock are frequently caused by increases in porewater pressures following of heavy rainfall and it is one of the most important factors of assessing the risk of landslide to predict the groundwater level fluctuations in hillslopes. This paper presents the comparative study of three unsaturated flow models developed by Sloan et al., Reddi, L.N., and Thomas, H.A., Jr., respectively, which are used to predict the increase of groundwater levels in hillside slopes. The parametric study for each of models is also presented. The Kinematic Storage Model(KSM) developed by Sloan et at. is utilized to predict the saturated groundwater flow. They are applied to the two sites in Korea so as to examine the possibility of use in the groundwater flow model. The results show that two unsaturated models developed by Sloan et al. and Reddi, L. N. are largely affected by the uncertain parameters like saturated permeability and saturated water content : the abed model has the potential of use in unsaturated flow model with the optimal estimates of model parameters utilizing available optimization techniques. And it is also found that the KSM must be modified to account for the time delay effect in the saturated zone. The results of this paper are able to be utilized in developing the predictive model of groan dwater level fluctuations in a hillslope.
This study analysed the components and characters of welfare rights through discussions of the concepts and types of universal rights, and discussions of human rights and citizenship rights. Welfare rights is claims rights which requires somewhat, and it is positive rights. And it is generally passive rights, but it contains collective participation rights which is active rights. The result of total discussions of rights, human rights, and citizenship rights led us to know the components and characters of welfare rights. Welfare rights contains social rights, economic rights, and cultural environmental rights. Social rights are composed of the right of social security, social welfare service, health, education, and residency. Economic rights are composed of the right of labor, intervension of labor market, job security, and capital control. cultural environmental rights are composed of the right of culture and environment. And welfare rights has several characters. First, it is natural rights which is bestowed on the citizens or people in modern civil societies. it is samely characterised as liberties and political rights. second, it has the same values like other rights such as lberties and political rights. Or it is more important, because it is necessary for other rights. Third, it is not the objective being which is constant, but it is changed, formed and constructed as total rights with human rights and citizenship rights. Fourth, it is truely rights, but is simultaniously accompanied by obligations. But the obligations is unconditional like as other rights. Endly, levels of welfare on the welfare rights must be modicum rather than minimum. The meaning of modicum level is uncertain, but it aims to the entire participation of peoples as citizen and social integration. And it has to aim to the prevention of heridity and continuity of inequality.
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