• Korean Journal of Pharmacognosy
• /
• v.38 no.1
• /
• pp.27-30
• /
• 2007

We examined the inhibitory activities against monoamine oxidase (MAO) of Chrysanthemum indicum L. in vitro and in vivo methods. Methanolic extract of C. indicum showed significant inhibitory activities on MAO-A that were prepared from rat brain in vitro. The inhibitory activities were measured by serotonin as a substrate. The $IC_{50}$ value of methanolic extract of C. indicum was 0.24 mg/ml for the inhibition of MAO-A. The ethylacetate fraction of methanolic extract of C. indicum exhibited the best activity toward MAO-A with $IC_{50}$ value of 0.05 mg/ml in vitro. It was observed that those activities in vivo tests have different tendency each other. Ethanolic extract of C. indicum was have no effect on rat MAO by the oral administration (p<0.05). However, MAO inhibitory activities of ethanolic extract of C. indicum by the oral administration have similar tendency to those of iproniazid. Consequently, we suggest that C. indicum may have the effects on the inhibitory activities against MAO both in vitro and in vivo. These results indicates that the C. indicum extract has properties indicative of potential neuroprotective ability.

• Journal of Korea Game Society
• /
• v.20 no.2
• /
• pp.113-122
• /
• 2020

This study is the research tendency(2016~2019) on the content and the intelligent information technology. After the IIT emerged as a social topic, related research increased, and interest in VR and AR was the highest. In games, more research has been done on VR and AR. In the case of big data technology, it was a tendency to pay attention to the study of movie contents. Many studies have attempted a technological approach to IIT. With regard to artificial intelligence technology, there were differences by technology and content area, mainly viewed from a legal and institutional perspective.

• Journal of the Korean Society of Safety
• /
• v.25 no.6
• /
• pp.180-185
• /
• 2010

We have to develop more correct and systematic way to choose Hazardous Highway Segments. In this research, we applied CRP(Continuous Risk Profile) technique which developed by UC Berkeley Traffic Safety Center in year of 2007, and can analyze yearly dangerous level tendency of continuity in the route of main road that is under California Department of Transportation(Caltrans). We changed standard of CRP to suit in Korean circumstance with consideration in radius of curve and traffic volume. For the verification by actual accident data, we embodiment the CRP by using the data from total of 587 case of accident in latest 10 years in Gyeong-Bu Highways, the amount of 56km. Finally, the effectiveness of technique in this research has been verified by obtained same result with current method for Hazardous Highway Segments. In addition, when calculating the Hazardous Highway Segments with technique that presented in this research we obtained following statements. First, identified dangerous level of continuity in the route by using CRP. Second, Accurate of Actual Hazardous Highway Segments selection has been developed by using last 10 year's data and profile making which provide simplicity analyze of Tendency. Third, after reforming the way of selection, effective range has been wider than former selection and it gives advantage for the policy side.

• Journal of odor and indoor environment
• /
• v.17 no.4
• /
• pp.322-329
• /
• 2018

The objective of this study is to identify the research trend in the field of indoor environment in Korea. We collected 419 papers published in the Journal of the Korean Society for indoor environment between 2004 and 2018, and attempted to produce datasets using a topic modeling technique, Latent Dirichlet Allocation(LDA). The result of topic modeling showed that 8 topics ("VOCs investigation", "Subway environment", "Building thermal environment", "School health", "Building particulate matter", "Asbestos risk", "Radon risk", "Air cleaner and treatment") could be extracted using Gibbs sampling method. In terms of topic trends, investigation of volatile organic compounds, subway environment, school health, and building particulate matter showed a decreasing tendency, while the building thermal environment, asbestos risk, radon risk, air cleaners, and air treatment showed an increasing tendency. The results of this topic modeling could help us to understand current trends related indoor environment, and provide valuable information in developing future research and policy frameworks.

• Journal of Distribution Science
• /
• v.22 no.8
• /
• pp.99-107
• /
• 2024

Purpose: The aim of this study is to explore the psychological characteristics of users in mobile distribution channels (MDC) during mobile shopping. Research design, data and methodology: A conceptual framework based on shopping satisfaction theory was developed, leading to the proposal of a research model to examine the relationships between emotional control (EC), emotional practice (EP), prudential buying tendency (PBT), prudential buying urge (PBU), prudential buying behavior (PBB), and mobile shopping satisfaction (MSS) in MDC. To validate the research model, 125 survey responses were collected from mobile shoppers, and the relationships among EC, EP, PBT, PBU, PBB, and MSS were analyzed using the PLS structural equation model. Results: The empirical analysis revealed that EC did not have a significant impact on PBT, while EP had a significant effect on PBT. Moreover, PBT was found to influence both PBU and PBB, with PBU significantly affecting PBB. Finally, the study found that PBB significantly influences MSS. Conclusions: This study elucidates the relationships among EC, EP, PBT, PBU, PBB, and MSS, providing valuable insights for enhancing consumer shopping satisfaction in MDC. Practically, the study suggests various strategies for personalized and differentiated mobile customer management. Theoretically, it contributes to the field by stimulating further research on prudent purchasing behavior in mobile commerce.

• Fire Science and Engineering
• /
• v.34 no.1
• /
• pp.37-46
• /
• 2020

This is a basic research on potential application of fire detection by measuring fire detection tendency of indoor air quality measurement factors. In this study, operation experiment using smoke detector sensitivity tester and paper fire experiment specified in UL 268 standards were conducted to evaluate the fire detection tendency of indoor air quality measurement factors. Based on the cross-substitution of values measured in the paper fire experiment, PM10 (excluding average) and HCHO (excluding average and maximum) for the indoor air quality meter (IAQ); PM1.0, PM2.5, and PM10 for IAQ S2; and CO (excluding the average and maximum) for combustion gas analyzers showed consistent tendency despite changes in the measured values for smoke generation under all experimental conditions. In particular, PM10 and CO are considered the most applicable fire detection factors among the factors measured in the experiment.

• Korean Journal of Child Studies
• /
• v.11 no.1
• /
• pp.100-114
• /
• 1990

The present research investigated scholastic self-concepts and attribution tendencies of institutionalized children in comparison with home-reared children. The subjects were 286 institutionalized and 327 home-reared fifth. sixth, seventh, and eighth grade children. Instruments were the Scholastic Self-Concept Test(Park. Lee. & Cho. 1980). the Attribution Tendency Test(Lee, 1983) and a questionnaire constructed by the researcher. Data were analyzed by ANOVA. Duncan's Test of Multiple Comparsion, and product- moment correlation coefficient(r). Findings showed that (1) the scholastic self-concept of institutionalized children was lower than that of home-reared children; (2) higher scholastic self-concept of institutionalized children was correlated with (i) higher degree of contentment with the institution. (ii) shorter length of residence in the institution. and (iii) older age at admission to the institution; (3) institutionalized children attributed achievement more to uncontrollable. external factors. while home-reared children attributed achievement more to controllable. internal factors; (4) institutionalized children with a lower degree of contentment with the institution attributed achievement to luck while those with a higher degree of contentment attributed achievement to ability; and (5) the higher the scholastic self-concept. the higher the tendency to attribute achievement to internal. controllable factors, and the lower the scholastic self-concept, the higher the tendency to attribute achievement to external, uncontrollable factors.

• The Research Journal of the Costume Culture
• /
• v.7 no.3
• /
• pp.72-92
• /
• 1999

The purpose of this thesis is to review relationship between various expression method in modern make-up and the tendency of Neo-Avantgarde. In this paper, the author classified the distinctive characters in Neo-Avantagarde with Historicism, Decadence, Humor, and Inhumanism and explained innovation and creatio which is manifested in the late 1990\`s make-up by studying Neo-Avantgarde tendency expressed in modern make-up. The results are as follows. 1. The Historicism in modern make-up is expressed in Japanese Kabuki Make-up, Chinese Pecking Opera make-up, and Primitive mask Make-up in Africa. 2. The Decadence is manifested in Tattoo make-up which is expressing fetishism and fin-de-냗칟 image, and Snobism Make-up which is expressing selg-ostentation and eroticism with artificial nail and eyelash. 3. The humor appears to the Character Make-up copying the characters in doll plays, animation and juvenile story. In addition it is showed in Kitsch Make-up, which has vulagr, rustic and childish image by wearing so diffusive and cheap ornaments. 4. The Inhumanism is appeared in Graphic Make-up which is in the pursuit of the visual happiness. It includes simple geometrical type, drawing and coloring. It is also showed in Vampire Make-up, which means the make-up style mading horro, hizarrerie, and mistery by primary color(black and red) make-up. As the above, Neo-Avantgarde can account for the diversity and pluralism of contemporary make-up.

• Human Ecology Research
• /
• v.52 no.4
• /
• pp.429-441
• /
• 2014

The use of smartphones has grown rapidly over a short period of time, particularly for commuting news search, smart banking, and social networking services, and has had a significant impact on the pattern of contemporary life. Further, a wide range of applications are downloaded on to smartphones. This has also led a considerable number of complaints regarding these applications. In this study, we focus on the levels of dissatisfaction that users experience with smartphone applications and their effects on consumer complaint behavior along with the moderating effects of the complaint handling process and attribution. The aim of this study is to verify whether the following hypothesis--2 (low/high dissatisfaction level of smartphone applications)${\times}2$ (poor/excellent complaint handling process)${\times}2$ (internal/external consumer attribution)--is in accordance with the betweengroup design to build a factorial design experiment. The results of this study are as follows. First, the consumer's tendency to complain significantly influenced their dissatisfaction level. Second, consumer complaint behavior is modulated by the complaint handling process. Third, the external-attribution tendency of consumers was found to lead to more dissatisfaction than the tendency for internal attribution.

• International Commerce and Information Review
• /
• v.12 no.1
• /
• pp.403-428
• /
• 2010

This research is about global investment for managing the important position, what Korea is doing in World's main market. Considering there are some differences between developed countries' model and developing countries' model in doing direct overseas investment, they target to get political agreement and develop the new invest plan and strategy by understanding changes of Korean manufacturing companies in direct overseas investment between 2001 and 2008 and analyzing the change of yearly investment motivation. The result from this result let us know that company should develop their own idea for their competitive advantage by doing direct overseas investment. And, the overseas investment, which was already done in other countries, 1. Review its realities and tendency in terms of investing countries, industries, and its scale and then Set up an actual model, based on strategic combination of investing location select and determination of Korean manufacturing companies. 2. Analyze how the situational factors have influenced and what factors would be considered for direct overseas investment. From the analyzing result, even though it is fairly true that raising wage and getting resources, and developing alternating industries for export had influenced at the beginning, overseas investing companies' policy will be influenced by the results from studying marketing-pursuit type, local producing and manufacturing by using low-wage people for local sale, and situation for changing investing tendency as service industry.