• The Korean Journal of Financial Studies
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• v.2 no.2
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• pp.315-344
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• 1995

The relationship of information flow and market price formation are central to the basic tenets of financial economics. Whereas information is usually treated as being either public or private(monopolistic), most empirical studies focus on the price effects of public announcements. More recent research has centered more on the role of private information, such as insider trading, in efficient pricing and whether such trading increases investor welfare. Typically, 'insider trading' refers to an officer that trades in his/her company's shares. Insider trading, however, also refers to anyone who generates private, albeit costly, information concerning a stock's fundamental value. Normally, such insider activity is more difficult to ascertain. One way in which negative information is revealed is through short-selling activity, especially the monthly short-interest positions reported by the national stock exchanges. Diamond and Verrecchia(1987) provide a theoretical paradigm that predicts a negative price adjustment upon announcement of n company's monthly short interest, if the short interest displays an unusual increase and is correlated with negative information that is not yet public. Empirical studies of the short-run, negative price effect predicted by Diamond and Verrecchia find mixed results. One explanation is that the time period studied is too short for the market to absorb the informational content of these announcements. One reason is that these announcements are an ambiguous signal that requires more individuals and time to collect and act on the same information before full revelation occurs or before the implicit information becomes publicly known. This 'long delayed reaction' also serves as a motivation for related research on the wealth effect of mergers, share repurchases, and initial equity offerings in which long-run performance differs from the initial, short-run reaction to such announcements or offerings.

• The Journal of the Korea Contents Association
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• v.16 no.7
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• pp.720-729
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• 2016

This study was the effect of depression, anxiety, stress on suicidal ideation for some of the elderly living in the Youngdong county. Then it establishes alternatives for elderly suicide prevention and community improvements to help improve the quality of life of the elderly. For this study, a random sampling of 367 people aged sixty or older living in the eleven villages in Youngdong county participated in a survey. As a result, depression, anxiety and stress affects suicid in the positive direction. The correlation between depression, anxiety, stress, and suicidal ideation was significant. The relationship between depression and anxiety was highest and the probability is less than 0.05. As an alternative to the Elderly Suicide Prevention, First, mental health census and management for elderly, Second, a need to provide jobs for the elderly. Third, it requires a tight safety net of health and safety officer with reinforcements. Fourth, there is a need for enhanced recognition of life-love.

• The Journal of the Korea Contents Association
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• v.16 no.3
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• pp.346-353
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• 2016

This research examines the effect of family member in board of directors. In Korea, the ownership and management of a firm is not thoroughly separated and most of firms are managed by controlling family. These family officers have same intent with family CEOs who identify themselves with the firm and want to hand over it to their descendants. Thus, family officers will influence positively on firm performance. Besides, the moderating effect of professional CEO on the above relation will be also positive. It is because professional CEO will be curbed by family officers in board of directors. Under this condition, the potential self-interest seeking behavior will be minimized and the specialty of professional CEO will be manifested. 2,456 firm-year panel data are gathered in manufacturing listed firms from 2004 to 2010 and the result suggests that hypotheses are supported.

• Research in Plant Disease
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• v.17 no.1
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• pp.82-85
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• 2011

Bakanae disease symptom were observed in barnyard grass in paddy field in Heanam, Jeonnam. The infected plants were blighted and white mass of spore were formed on the stem. Fusarium species were isolated from infected stem and the isolates were identified as Fusarium fujikuroi based on their morphological and molecular characteristics. The isolates of F. fujikuroi were assigned to reference of F. fujikuroi among related Fusarium species based on the translation elongation factor 1-alpha gene sequence. Pathogenicity of the fungal isolates was confirmed on seedlings of rice and barnyard grass by artificial inoculation. The results indicated that barnyard grass can be inoculum source of Bakanae disease on rice. Thus, effective weed management is necessary to Bakanae disease control and healthy seed production.

• Convergence Security Journal
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• v.13 no.2
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• pp.111-120
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• 2013

Army NCO roles and responsibilities in conjunction with the Defense Reform 2020 plan to perform a pivotal role in the bag the past tradition inherited bag and development, transition the mission commander helpers battle conductor, mainly functional experts, management experts from the bag to show PowerIt has a pivotal role as a transition. It embodies the director and the military organization of work within the scope of the statutes and rules, such as planning and implementation as the core of the Power which is most frontline officers, the NCO instructions and control through education and functional personnel to maintain the best Power will. Propose the measures that can be overcome by considering the importance of key personnel, operating personnel NCO in the military organization and analysis of the issues, the problem of the NCO system. The social awareness to be able to build a system to obtain a stable workforce through effective operations for changes in the revival, especially in the Department College of NCO activated mutual development challenges were present.

• Korean Journal of Occupational Health Nursing
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• v.13 no.1
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• pp.30-39
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• 2004

Purpose: This study was performed to identify the factors of the job stress and to analysis affecting job satisfaction in clinical nurses, using the Job Stress Model by the National Institute for Occupational Safety and Health (NIOSH). Method: Data collection was done from July 21 to July 30, 2003. The study was involved in 203 nurses who work at the hospital. It was examined the self-recording questionnaire about general characteristics, work-related factors, non-work factors, instrument revised by NIOSH Job Stress questionnaire translated by the Korea Occupational Safety & Health Research Institute(1999). Instrument about shift work was the tool developed by Kim and Gu(1984). Result: Job satisfaction of subjects at an average level with $1.96{\pm}0.37$ score on the basis of 3 points. According to general characteristics, job satisfaction was high in those with older age and married group. According to work related general factors, job satisfaction was high with working career, an officer to higher grade. According to work characteristics factors, job satisfaction was low with much role conflict at work and much workload and much interpersonal conflict. As for the relationship between job satisfaction and non-work factor, job satisfaction was did not show statistically significant differences. As a result of Stepwise multiple regression analysis, job satisfaction was influenced by shift work, conflicts of between group and grade of office. Conclusion: Therefore, it suggests that the nurses need stress management related shift work for improvement of job satisfaction.

• Journal of Navigation and Port Research
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• v.38 no.5
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• pp.541-547
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• 2014

Busan was known firstly to the western world in the end of 18th century. When the Joseon opened a port under the western powers in the late 19th century, Busan was an important port. The increasing number of international ship exchange had magnified the harbor facility and the importance of lighthouses of Busan port. Busan maritime customs officer were in charge of installation and management of lighthouses. The operations of maritime customs became historical origin of Joseon changing from feudal society to modern nation. The majority of the documents from maritime customs was disappeared. So it was hard to know the exact history. But investigating documents and papers of Joseon, even media records will enable us to establish the objective fact relations. Moreover, published and translated data from the past make it possible such investigations. As a result, modern lighthouse of Busan harbor in the late Joseon after opening port was could be found. It could be offered to establishing the Korean modern history as the objective data.

• Journal of Environmental Impact Assessment
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• v.28 no.3
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• pp.287-298
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• 2019

This study found that wildlife crossing created through environmental impact assessments didn't reduce the number of wildlife accidents on the road by review of "A Study on the Legal and Institutional Review for Reproving Bio-Mobile in Environmental Impact Assessment(2018)". Specific considerations to be reviewed at each stage of the environmental impact assessment consultation were presented for practical site application. Therefore, in this study, the consultation steps for environmental impact assessment were presented in five stages, including planning, design, construction, monitoring, maintenance and management, and detail of the items to be reviewed by public officer. It will be able to prevent loss of habitats and improve biodiversity by improving the practice and institutional problems that were planned and designed at the time of construction.

• Journal of Digital Convergence
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• v.17 no.3
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• pp.271-280
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• 2019

This study aimed to examine the relations between organizational fairness and organizational effectiveness in fire-fighting organizations, and provide basic data for higher organizational effectiveness. The subjects of the study were fire-fighting officers under the Jeollanamdo Fire Service and were interviewed with the use of questionnaire from April 3 through 13, 2016. 433 copies of the responses were analysed with the use of SPSS ver. 18.0 for Window. The results are presented as follows: Distributive justice and interaction justice had a positive effect on job satisfaction, and procedure justice and distributive justice had a positive effect on organizational commitment. Distributive justice and interaction justice had a negative effect on turnover intention.

• The Korean Journal of Emergency Medical Services
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• v.23 no.2
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• pp.139-151
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• 2019

Purpose: To discuss the records and legal standards of emergency medical technician training institutions in Korea and abroad, to identify the problems, and to provide the basic resources for improving the EMT-basic training institutions. Methods: We received advice through an advisory meeting of experts (professors of department of emergency medical technicians) and interested parties (Korean Association of Emergency Medical Technicians, officials of emergency medical technician training institutions) and referred to various reports published by governments, official institutions, and other trustworthy organizations. Also, we communicated with the related experts abroad (3 countries) on the phone or by email for surveys. Results: Compared to the abroad, it is necessary to categorize the standards and procedures of designating the emergency medical technician training institutions in Korea and improve the management of training institutions to train competent emergency medical technicians. Conclusion: It is necessary to designate and manage continuously the emergency medical technician-basic training programs for the systematic primary healthcare service.