• International Journal of Contents
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• v.14 no.4
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• pp.51-56
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• 2018

This study was conducted to explore the relationship between personality characteristics and mood in the selection of media content. Using meta-analysis, this study analyzed past studies regarding media content selection in television program. The results of this research showed that the preference of a given media content would depend on the viewer's mood, personality characteristics and the interaction between personality characteristics and mood states. The secondary data of television programs supported the association.

• Journal of the Korean Physical Society
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• v.73 no.9
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• pp.1385-1392
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• 2018

A network with coupled biological neurons provides various forms of collective synchronous dynamics. Such phase-locking dynamics states resemble eigenvectors in a linear coupling system in that the forms are determined by the symmetry of the coupling strengths. However, the states behave as attractors in a nonlinear dynamics system. We here study the collective synchronous dynamics in a neural system by using a novel theory. We exhibit how the period and the stability of individual phase-locking dynamics states are determined by the characteristics of synaptic couplings. We find that, contrary to common sense, the firing rate of a synchronized state decreases with increasing synaptic coupling strength.

• Proceedings of the Korean Society of Crop Science Conference
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• 2021.10a
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• pp.8-8
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• 2021

• Bulletin of the Korean Mathematical Society
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• v.61 no.2
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• pp.479-488
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• 2024

Convergence to a steady state in the long term limit is established for global weak solutions to a chemotaxis model with degenerate local sensing and consumption, when the motility function is C¹-smooth on [0, ∞), vanishes at zero, and is positive on (0, ∞). A condition excluding that the large time limit is spatially homogeneous is also provided. These results extend previous ones derived for motility functions vanishing algebraically at zero and rely on a completely different approach.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.38 no.2
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• pp.153-163
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• 2020

After launching the GOCE (Gravity Field and Steady-State Ocean Circulation Explorer) which obtains high-frequency gravity signal using a gravity gradiometer, many research institutes are concentrating on the development of GGM (Global Geopotential Model) based on GOCE data and evaluating its precision. The precision of some GGMs was also evaluated in Korea. However, some studies dealt with GGMs constructed based on initial GOCE data or others applied a part of GNSS (Global Navigation Satellite System) / Leveling data on UCPs (Unified Control Points) for the precision evaluation. Now, GGMs which have a higher degree than EGM2008 (Earth Gravitational Model 2008) are available and UCPs were fully established at the end of 2019. Thus, EIGEN-6C4 (European Improved Gravity Field of the Earth by New techniques - 6C4), GECO (GOCE and EGM2008 Combined model), XGM2016 (Experimental Gravity Field Model 2016), SGG-UGM-1, XGM2019e_2159 were collected with EGM2008, and their precisions were assessed based on the GNSS/Leveling data on UCPs. Among GGMs, it was found that XGM2019e_2159 showed the minimum difference compared to a total of 5,313 points of GNSS/Leveling data. It is about a 1.5cm and 0.6cm level of improvement compare to EGM2008 and EIGEN-6C4. Especially, the local biases in the northern part of Gyeonggi-do, Jeju island shown in the EGM2008 was removed, so that both mean and standard deviation of the difference of XGM2019e_2159 to the GNSS/Leveling are homogeneous regardless of region (mountainous or plain area). NGA (National Geospatial-Intelligence Agency) is currently in progress in developing EGM2020 and XGM2019e_2159 is the experimentally published model of EGM2020. Therefore, it is expected that the improved GGM will be available shortly so that it is necessary to verify the precision of new GGMs consistently.

• Journal of the Korean Society for Precision Engineering
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• v.28 no.7
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• pp.859-865
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• 2011

A bio-check unit and health index were developed to provide information on personal health state with easily available noninvasive measurements and surveys. Four health indices were defined such as cardiovascular index, stress index, obesity index, and management index. Methods were developed to calculate health index scores from measured physiological signals and answer of survey questions. In order to evaluate effectiveness of the health indices, a clinical trial was conducted for 362 persons who visited general hospital for annual health inspection. The cardiovascular index showed a good correlation coefficient of 0.685 with the cardiovascular health graded by a medical doctor. The stress index showed a good correlation coefficient of 0.638 with the results of stress questionnaires being used in the public health center. Once the health index function is added in the bio-check unit, the unit may provide useful contents for personal health management.

• Asian Journal of Innovation and Policy
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• v.9 no.1
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• pp.95-105
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• 2020

Air pollution is a global challenge that not only threatens public health, but also takes away lives. Strategic communication, in other words, public relations, is an essential way of tackling air pollution and managing the risks involved. Engaging global citizens into the public sphere requires the building of a sense of collectivity and duty on achieving clean air. Strategies and policies on an international scale that are based on the theoretical framework (Behavior Procedure Model) and focus on leading citizens into the mature and unified Collectivity during the observance of the 'International Day of Clean Air for blue skies' are crucial. Notably, the Asian continent has inevitably found itself at the crossroad between economic growth and environmental protection, and has even been observed to be pursuing a passive response to air pollution. The key communication strategies are supported by the three goals, which include: expanding existing communities and building a new Collectivity, supporting international solidarity and individual member state activities, and implementing systems and structures. The key goals can be further specified into six strategies. This paper has analyzed global problems and discussed possible communication strategies to increase public engagement for the observation of the 'International Day of Clean Air for blue skies.' It will be the responsibility of all nations to implement the aforementioned strategies and policies as well as promoting global action.

• Preventive Nutrition and Food Science
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• v.16 no.4
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• pp.394-407
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• 2011

Better understanding of the complex factors leading to human diseases will be necessary for both long term prevention and for managing short and long-term health problems. The underlying causes, leading to a global health crisis in both acute and chronic diseases, include finite global health care resources for sustained healthy human survival, the population explosion, increased environmental pollution, decreased clean air, water, food distribution, diminishing opportunities for human self-esteem, increased median life span, and the interconnection of infectious and chronic diseases. The transition of our pre-human nutritional requirements for survival to our current culturally-shaped diet has created a biologically-mismatched human dietary experience. While individual genetic, gender, and developmental stage factors contribute to human diseases, various environmental and culturally-determined factors are now contributing to both acute and chronic diseases. The transition from the hunter-gatherer to an agricultural-dependent human being has brought about a global crisis in human health. Initially, early humans ate seasonally-dependent and calorically-restricted foods, during the day, in a "feast or famine" manner. Today, modern humans eat diets of caloric abundance, at all times of the day, with foods of all seasons and from all parts of the world, that have been processed and which have been contaminated by all kinds of factors. No longer can one view, as distinct, infectious agent-related human acute diseases from chronic diseases. Moreover, while dietary and environmental chemicals could, in principle, cause disease pathogenesis by mutagenic and cytotoxic mechanisms, the primary cause is via "epigenetic", or altered gene expression, modifications in the three types of cells (e.g., adult stem; progenitor and terminally-differentiated cells of each organ) during all stages of human development. Even more significantly, alteration in the quantity of adult stem cells during early development by epigenetic chemicals could either increase or decrease the risk to various stem cell-based diseases, such as cancer, later in life. A new concept, the Barker hypothesis, has emerged that indicates pre-natal maternal dietary exposures can now affect diseases later in life. Examples from the studies of the atomic bomb survivors should illustrate this insight.

• Journal of Digital Convergence
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• v.18 no.5
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• pp.139-144
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• 2020

While networks of many countries around the world are actively connected with the establishment of ICT-based infrastructure, diplomatic activities are also evolving into various diplomatic forms that are different from traditional diplomacy before. In particular, in the process, public diplomacy activities that focus on subjects other than the government and new diplomatic areas are accelerating. This study identifies the current state of public diplomacy that has emerged as a representative type of new diplomatic style and derives policy implications for the revitalization of global governance. The analysis was attempted based on data generated mainly on the main contents of various diplomatic activities by each entity, and the future direction of public diplomacy was sought. In particular, the subject of diplomacy is becoming more diverse, and most of all, various activities are being carried out based on the world stage due to changes in diplomatic means. Most of all, they understood that all the people are playing the role of private diplomacy, and that the roles and capabilities of local governments are becoming stronger. Global governance needs to be built to revitalize public diplomacy, and support policies need to be continued by expanding the role of public diplomacy and various topics.

• Journal of the Economic Geographical Society of Korea
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• v.16 no.3
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• pp.323-343
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• 2013

This study explores spatial and temporal evloution of Dak Lak as one of coffee frontiers in Vietnam. So far, many authiors have studied this region under the framework of global-local interactions and emphasized the impacts from global coffee market. However not only unique past situation as the underdeveloped frontier and also the interventions of Vietamese government for transforming her socioeconomic system have played not less pivotal role than the global market in forging the present geography of Dak Lak. Under this logic, this study have traced restucturing in production system of state farms and smallholders' particpation in coffee farming. This study shows that various and unique localities as a frontier and specific situation accrued from transitional process has reflected in the present geography of coffee production in Dak Lak. Finally, this paper can be arguable to contribute some useful insights for understanding the evolution of coffee frontier in Vietnam.