• Anxiety and mood
• /
• v.10 no.1
• /
• pp.44-51
• /
• 2014

Objective : The amygdala has been considered to be a critical region in the pathophysiology of social anxiety disorder, but subregional connectivity pattern has not been examined yet despite lots of previous functional neuroimaging studies. Methods : Resting-state functional magnetic resonance imaging data was obtained in 19 patients with social anxiety disorder and 20 normal controls, and default mode functional connectivity with each of basolateral, centromedial and superficial areas of the amygdala was measured and compared between the two groups. Results : Differential amygdala-based networks between the two groups were distributed to all over the brain. In particular, however, a bias on the amygdala-cingulate pathway was observed in the superficial amygdala only. Connectivity strengths between the superficial amygdala and perigenual anterior cingulate cortex were correlated with scores of social interaction and avoidance. Conclusion : Our findings provide new insights into understanding of the intrinsic cognitive bias model of social anxiety disorder. An abnormality in superficial amygdala-anterior cingulate connectivity may influence on cognitive processing of socially-relevant information in social anxiety disorder.

• Journal of Korean society of Dental Hygiene
• /
• v.12 no.4
• /
• pp.801-815
• /
• 2012

Objectives : To obtain necessary fundamental data for the development of oral health improvement programs for senior citizens in the manner of investigating the Status of their oral health. Methods : Data were collected from 346 senior citizens aged 65 years or older who had lived in Seoul and Gyeonggido province, Republic of Korea. This study was conducted for 3 months from April 2011 to June 2011. Excluding those obtained from 34 respondents who gave inadequate responses to given questions, the data from 312 respondents were analyzed. Results : 1. The number of senior citizens who chose 'Sometimes' to as an answer to the question about the self-perception of their own oral conditions such as mastication, swallowing, gingiva hemorrhage, dry mouth, and/or oral malodor was the largest. As an answer to the question about the presence of interpersonal avoidance, 'No' accounted for the largest proportion. The number of respondents choosing gingiva treatment regarding the perception of the necessity for medical interventions was the largest. 2. In regard to the knowledge of oral health care, the percentage of correct answers was the highest for 'I brush my tooth before each meal' ($0.69{\pm}0.156$), while the lowest percentage of correct answers was seen for 'Gingival diseases can be improved by medications' ($0.33{\pm}0.472$). Conclusions : Based upon the above mentioned results, the author conclude that developing relevant national programs and support policies at a national level as well as implementing proactive and systematic home-visiting oral health programs at the levels of local autonomous entities or communities will lead to significant improvements in senior citizens' oral health and QoL (quality of life).

• Journal of the Korean Society of Fisheries and Ocean Technology
• /
• v.41 no.4
• /
• pp.289-295
• /
• 2005

This study is intended to provide navigator with specific information necessary to assist in the avoidance of collision and in operation of ships to evaluate the manoeuvrability of own ship. The actual manoeuvering characteristics of ship can be adequately judged from the results of typical ship trials manoeuvres. Author carried out sea trials based full scale for turning test, zig-zag test, spiral tests and crash-stop test at actual sea going condition. The turning circle manoeuvres were performed on starboard and port sides with $35^{\circ}$ rudder angle at the service speed, and Zig-zag procedures were performed on both sides with $10^{\circ}$ and $20^{\circ}$ rudder angle respectively. Spiral tests were carried out on the both sides and crash stop test was also carried out. The results from tests could be compared directly with the standards of manoeuverability of IMO and consequently the manoeuvring qualities of the ship is fully satisfied with its.

• Proceedings of the Korean Institute Of Construction Engineering and Management
• /
• autumn
• /
• pp.40-45
• /
• 2001

Arbitration is adopted recently as dispute resolution vehicle for major construction projects in Korea. These arbitration cases show that complex construction disputes are resolved reasonably by newly-introduced arbitration process and this trend will continue. This paper reviews the expanded concept of dispute resolution for the new approaches to the disputes resolution processes in construction projects. The expanded concept includes that disputes need to be assessed reactively and proactively in construction project and need to be managed effectively in advance. In this paper, dispute resolution methods used in Korea are reviewed and analyzed against ADR methods available in US construction industry The new approaches to the dispute resolution Processes are based on the concept of 'Disputability' which means dispute management through prevention, avoidance and predictability of dispute issues and characteristics.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
• /
• v.25 no.1
• /
• pp.99-107
• /
• 2014

Abruptly occurred obstacles on highway threaten driving safety. Radar draws the attention to the collision avoidance system because it can be fully operational in all weather, and day and night condition. This paper presents the design, implementation and performance test results of pulsed Doppler radar system for detection and warning of road obstacles. The system is designed to consider highway environment and detection capability about various fixed and moving obstacles. The system consists of 4 subsystems, which include antenna unit, transmitter and receiver unit, radar signal & data processing unit, and controller & display unit. The core technologies include clutter map based change detection for fixed obstacles detection, Doppler estimation for velocity detection of moving targets, and azimuth angle estimation method using monopulse for lane estimation and tracking. The design performance of the developed radar system is verified through experiments using a fixed reference target and moving vehicles in test highway.

• Proceedings of the KSR Conference
• /
• 2008.06a
• /
• pp.1426-1440
• /
• 2008

In Korea, the concentration for the use of urban railroads is comparatively high during peak hours. In case of road traffic, overcrowdness leads the increase of total travel time and cost naturally but this does not happen in railroad systems because of fixed operational interval. Thus, passenger's disutility is generated physically and mentally from congestion increment. The increase of railroad capacity from new transit lines and expansion of existed lines contributes traveler's comfort benefits to rising. However, present evaluation guidelines for feasibility studies of road and railroad projects do not include any valuation methodology about passenger's comfort benefits. Therefore, in this research, various factors affecting comfort benefits are reviewed and stated preference survey is performed in order to estimate traveler's comfort benefits for congestion reduction. In addition, willingness to pay for congestion avoidance is calculated from that stated preference survey based on Tobit Model. As a result, detailed unit for willingness to pay according to congestion reduction is proposed in this study.

• Journal of Fisheries and Marine Sciences Education
• /
• v.28 no.4
• /
• pp.957-970
• /
• 2016

This study diagnosed the status of marine environmental impact assessment(MEIA) for project near the habitat of marine protected seagrass species such as Zostera caespitosa, Zostera asiatica, Phyllospadix iwatensis. For the preparation of a marine environmental impact statement, different monitoring parameters are used without any specific guideline for the assessment of current status. And also, both tools and techniques for MEIA are needed to improve for implementing. The monitoring plans and parameters are not considered well with the accuracy of the environmental predictions and effectiveness of any applicable mitigation measures. This study suggested the reasonable standard of the MEIA for the conservation of the marine protected seagrass species which have the habitat located near affected area. The inshore seagrasses need to be monitored including shoot count based on the "No Net Loss of Seagrass" as part of the monitoring parameters to assess the status of marine environment of environmental impact statement. In a process of effect prediction, we suggested a concentration of 10 mg/L suspended solids which added by the new developmental project near seagrasses habitat, referring to study of overseas case. But a further study for an appropriate standard is necessary effectively. In a mitigating process, priority needs to be considered in order of avoidance, minimization, reduction, compensation. In a post-monitoring process, it is necessary to monitor the seagrass species abundance to identify the variation of b/a (before and after) project. And in a case of implementing transplantation, survival rate need to be included to determine a success of project.

• Journal of the Korean Academy of Esthetic Dentistry
• /
• v.28 no.1
• /
• pp.54-60
• /
• 2019

Objective: Dental fear is a feeling of anxiety and fear without intervention during a dental visit, mainly due to past negative dental treatment experiences, and in adults, despite the recognition of the need for dental treatment, it can lead to avoidance of dental treatment, which may cause deterioration of oral health. Therefore, this study was conducted to measure dental fear and anxiety level in some adults, and to identify related factors and their causes. Methods: This study used Kleinknecht's Dental Fear Survey scale and the SPSS 21 program (IBM SPSS Statistics 21) was used for analysis. Result: When the dental fear was the higher, the "access to the dental clinic" was found to be the highest, followed by "sitting in dental unit chair" and "smell of dental clinic" in that order. Conclusions: Dentists and dental hygienists should be able to understand the fear, anxiety, and concerns of the dentist office and to find various ways to provide systematic medical services.

• Research in Community and Public Health Nursing
• /
• v.24 no.3
• /
• pp.264-272
• /
• 2013

Purpose: The aim of this study was to investigate coping styles for dysmenorrhea and explore factors related with their coping styles according to different health loci of control in middle schoolers. Methods: Data were collected by using a structured questionnaire for 572 students from three middle schools in Seoul from March 22 to April 2, 2010. The measurement included menstrual distress, coping method questionnaire and health locus of control. The data were analyzed by using t-test, ANOVA, Pearson's correlation coefficients, and multiple regression analysis. Results: Middle school students used the active behavioral coping style more often than the avoidance style. There was a significant difference in means within each coping style including levels of stress, levels of health, and regular exercise. There were also significant correlations between each coping style and health locus of control. Regression analyses indicated that the health locus of control factor is the most powerful factor in each coping style. Conclusion: We observed that various coping methods are used for dysmenorrhea in middle school students. However, the active behavioral coping style is dominant in such a condition. Based on these results, we need to develop a health locus of control to improve coping styles for dysmenorrhea.

• Journal of Korean Academy of Nursing
• /
• v.11 no.1
• /
• pp.29-44
• /
• 1981

Nursing role tends to be more complex then before because of the increased number of health professionals and of the health needs of patient. Accordingly, nursing role expectations are various and sometimes conflict by its role set. There are various literatures on role conflict of nurses and discussed how to eliminate the conflict in order to improve nursing service particularly in the hospital organization. This study was designed to determine if role conflict exist among nurses who work in a hospital and if so what resolution were most frequently selected by the nurses to the role conflict. The study population was fifty six registered nurses of K university hospital. The fifty six was defined and selected by nonproportional stratified sampling method to obtain subjects who are from uniform role set. A questionnaire, a list of role connect, stimulated by the literature review, knowledge based on several years' experience in nursing was formulated by the author and administered to the study population. The questionnaire included twenty nine closed question items of role conflict and classified according to the intra sender conflict, intersender conflict, person conflict and interperson conflict. The response choices to the questions range on a scale continuum with degrees of conflict from one to five: never - 0, seldom - 1, occasionally - 2, frequently - 3, and mostly -4. Per cent, means, standard deviation, and x² -test were used to analyze data. The findings of the study could be summarized as follows. 1. General characterstics of the study population: Most of the population were between the age of 22-27 and are not married. 2. Analysis of Role conflict Existence of Role conflict of nurses was found by the total mean conflict score, 2.06. Inter Sender Role conflict revealed the most high mean conflict score and the lowest one was inter person role conflict. Among the five role senders of nurses: Physician, patient and hi9 family, peer and superior, nursing students and hospital administrator, nurses showed the highest conflict mean score for physicians and the lowest score for Nursing student. 3. Analysis of role conflict resolution. Compromise through discussion with the role sender was the most frequently selected method by the respondents. The result also showed that the respondents tend to resolve the conflicting situation created by patient or his family by persuation. On the o thor hand, Avoidance and ignorance was frequently chosen for the conflicting role expectations from the hospital administrator.