• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.4
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• pp.2526-2531
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• 2014

This paper has analyzed the effects of CEO turnover and other fundamental variables on stock returns. Therefore, the major purpose of this study is to analyze CEO turnover having a systematical effect on the stock return. The paper uses panel data analysis. We find that the results of regressions say that CEO turnover, book-to-market ratio, earning-to-price ratio, cash flow-to-price ratio, and firm size can explain the differences in average returns across stocks.

• Journal of Digital Convergence
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• v.14 no.2
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• pp.73-81
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• 2016

Elderly consumers of these days have economic power because of economic growth and live longer because of medical science development. Therefore, they have become very important customers to companies. However, if companies want to understand elderly consumers and induce them to spend money, empirical studies should have done first of all. So, this study examines the relationship between psychological characteristics of elderly consumers and purchase intention of health functional food. The results are: First, three psychological characteristics of elderly consumer are statistically significant to purchase intention of health functional food. 'Innovation-Achievement' and 'Elderly-Awareness' are positively significant to purchase intention of health functional food. Second, 'Trend-Convenience' and 'Elderly-Awareness' are more statistically significant to purchase intention of health functional food. Third, 'Trend-Convenience' is negatively significant to purchase intention of health functional food.

• Journal of Nutrition and Health
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• v.45 no.4
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• pp.324-335
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• 2012

The purpose of this study was to examine the relationship of dietary self-efficacy and illness beliefs, perceived benefits, and perceived barriers for the reduction of sodium intake in the elderly. A cross-sectional study was performed on 252 elderly people, aged 65 yrs and above, living in Daejeon Metropolitan city and Jecheon city, Chungbuk from March 21 to March 30, 2011. Dietary self-efficacy of three factors (resisting relapse, reducing salt and behavioral skills), perceived benefits and barriers, accurate and inaccurate illness beliefs were measured by 5 or 4 point Likert scale. With the increasing education level of the elderly, dietary self-efficacy, and accurate illness belief score increased and perceived barrier score decreased. Perceived benefits score was higher in the subject living alone compared to those living with siblings or spouses. Among three factors of dietary self-efficacy, reducing salt was scored highest and behavioral skills scored lowest in the elderly. Recording meal diary and reading labels for salt content in the items of behavioral skills showed lower score than other items. Accurate illness beliefs and perceived benefits were more scored than inaccurate illness beliefs and perceived barriers respectively in the subjects. The subjects with higher accurate illness beliefs, lower inaccurate illness beliefs, higher perceived benefits, and lower perceived barriers for the reduction of sodium intake showed higher dietary self-efficacy. In summary, accurate illness beliefs and perceived benefits positively correlated with dietary self-efficacy for the reduction of sodium intake in the elderly, whereas inaccurate illness beliefs and perceived barriers are negatively correlated.

• The Journal of Information Systems
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• v.25 no.3
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• pp.91-116
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• 2016

Purpose Quality and quantity of knowledge in virtual communities is at the discretion of knowledge contributors, and understanding what motivates knowledge contributors' behavior can be invaluable. The purpose of this paper is to find the social aspect of knowledge contribution in virtual communities within the frame of self-determination theory. Also, we seek differential effects of motivation value for novice vs. expert knowledge contributors. Design/methodology/approach Reputation and altruistic motives are studied as antecedents of intrinsic and extrinsic values in contributing knowledge in virtual communities. Gained social connectedness and satisfaction in their knowledge were behaviors studied as dependents of the motivational value. Also, the proposed model was tested for group differences between expert and novice knowledge contributors seeking motivational changes. Self-determination theory is the base theory which explains how externally motivated behaviors can evolve from extrinsically motivated to intrinsic-like behavior with social experiences as knowledge contributors. Findings Analysis of 262 data points gathered from knowledge contributors in Korean virtual communities in 2005 reveals social connectedness as an important dependent variable both for novice and expert knowledge contributors. Group difference analysis shows altruism has negative influence on extrinsic value only for experts. Intrinsic value has a positive influence on satisfaction for both groups alike but the expert group shows a statistically stronger influence than the other.

• Journal of Digital Convergence
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• v.15 no.12
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• pp.213-219
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• 2017

In recent years, the definition of corporate governance is a stakeholder-oriented corporate governance that can meet the needs of sustainability management and corporate social responsibility. The purpose of this study is to empirically analyze the effect of corporate governance on employees and creditors corporate governance on earnings management by using regression analysis. The results show that the corporate governance of employees and creditors plays a role in reducing the simultaneous profit management of discretionary accruals, which is the accrual of asset impairment loss, which is the accrual of negative I could confirm. The results of the empirical analysis show that stakeholder-centered corporate governance can play a role in controlling managers' behavior and market. In addition, the results of this study suggest that the responsibility of stakeholders as corporate governance is important for sustainable management of modern corporations where corporate social responsibility is important.

• Journal of Wetlands Research
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• v.7 no.2
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• pp.37-52
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• 2005

Vertical distribution of bacterial population and activities were compared between the muddy and sandy sediment of the tidal flat located in southern area of Ganghwa Island. The average of bacterial number and activities in mud flat was slightly higher than that in sand flat. Bacterial number was markedly increased at the sandflat during the investigation period, which seemed to be the result of increase of mud content. The number and activities of microorganisms in mudflat was comparable to that of the mangrove sediments. There was no differences in bacterial number with the depth, but the aminopeptidase activity and bacterial productivity were decreased markedly within 3~5cm depth of sediment due to the availability of carbon sources and molecular oxygen in pore water. The number and activities of microorganisms in mudflat did not correlated with the distribution of benthic microalgae; however, those in sand flat were closely correlated with the distribution of benthic microalgae. The distribution of marsh plant in the mudflat area might be the reason of the difference.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.247-251
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• 2008

There are many stakeholder whose interests against the rest and lots of complex projects in Urban Regeneration. Moreover, there are various communication routes and complex decision making structure because the benefits among stakeholder are conflict. Eventually, the lots of decision making task and complex structure cause inefficiency and delay of Urban Regeneration business. This Is a basic study for establishing decision making governance which help efficient decision making in Urban Regeneration. This study was conducted follow process. Through the analysis the Urban Regeneration process and literature study of "Governance", we characterize the decision making of Urban Regeneration, and based on that character we founded "decision making governance composition". Finally we suggest the "Decision Making Governance System Concept in Urban Regeneration"

• Journal of the Korea Society of Computer and Information
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• v.24 no.11
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• pp.41-49
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• 2019

We are to build an unsupervised machine learning-based language model which can estimate the amount of information that are in need to process words consisting of subword-level morphemes and syllables. We are then to investigate whether the reading times of words reflecting their morphemic and syllabic structures are predicted by an information-theoretic measure such as surprisal. Specifically, the proposed Morfessor-based unsupervised machine learning model is first to be trained on the large dataset of sentences on Sejong Corpus and is then to be applied to estimate the information-theoretic measure on each word in the test data of Korean words. The reading times of the words in the test data are to be recruited from Korean Lexicon Project (KLP) Database. A comparison between the information-theoretic measures of the words in point and the corresponding reading times by using a linear mixed effect model reveals a reliable correlation between surprisal and reading time. We conclude that surprisal is positively related to the processing effort (i.e. reading time), confirming the surprisal hypothesis.

• Journal of Convergence for Information Technology
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• v.10 no.2
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• pp.160-166
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• 2020

The purpose of this study was to identify dental hygiene students' interpersonal relationship ability, interpersonal relationship satisfaction, stress levels and to develop positive measures for adapting to university life through the investigation of their relevance to the departmental satisfaction. It was conducted by using the convenience sampling of students enrolled in the dental hygiene department and a self-reported survey. Collected data were analyzing by using SPSS Statistics version 22.0 program (p=0.05). The correlations among their interpersonal relationship ability, interpersonal relationship satisfaction, stress and department satisfaction were examined to show that interpersonal relationship ability have a positive correlation with department satisfaction, while stress has a negative correlation with the latter. Both department intelligibility and interpersonal relationship ability, as factors influencing their department satisfaction, have positive effects on department satisfaction, indicating that the factors influencing that the factors influencing dental hygiene students' department satisfaction are interpersonal relationship ability and department intelligibility. Although this study is limited to generalization by conducting research on some dental hygiene students, it is deemed necessary to develop and apply interpersonal relationship ability and department-related information programs as a way to increase department satisfaction.

• The Journal of the Korea Contents Association
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• v.14 no.6
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• pp.319-327
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• 2014

The purpose of this study was to examine the degree of loneliness and suicidal ideation and the difference of them according to character type in the elderly. The study involved 149 the elderly, 65 years and over, attending community senior centers and social welfare centers. Data were collected from May to June, 2013 using the structured questionnaire. According to the findings, the means of loneliness and suicidal ideation were 2.0(${\pm}0.5$) and 1.5(${\pm}0.6$) respectively and they were below the median. In character type, percentage of the active integrated coper was 67.1% and next was the dependent passive type, the self-negating undercoper, and the failing overcoper. Loneliness and suicidal ideation of the active integrated coper were lower than them of the failing overcoper and the self-negating undercoper in elderly. There was positive correlation between loneliness and suicidal ideation. It is meaningful that the study results will be provided for understanding of elderly' mental health. Based on the results, the differentiated intervention considered of character type should be developed and provided for decreasing the loneliness and suicidal ideation in elderly.