• Journal of KIISE:Computing Practices and Letters
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• v.15 no.6
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• pp.425-429
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• 2009

Recently, Chen et al.'s proposed mutual authentication scheme based on the quadratic resiidue, finding the squaring root problem, for avoiding exhaustive search on the server. But, if a malicious reader sends same random value, the tag is traced by an adversary. Moreover, there is realization problem because of its limited ability to compute squaring and hash function. In this paper, we analyze Chen et al.'s scheme and its weakness. Furthermore we present an improved mutual authentication scheme based on the quadratic residue which solves the tracing problem by generating random value on the tag and uses only squaring. We also make the scheme satisfy to forward secrecy without updating and synchronizing and avoid exhaustive search.

• Journal of KIISE:Databases
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• v.29 no.6
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• pp.500-500
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• 2002

Most of previous replication schemes assume lazy schemes, which asynchronously propagate replica updates to other nodes after the updating transaction commits. While lazy schemes are novel in the sense that they can resolve high deadlock frequencies of eager schemes, they suffer from the fact that users should be responsible for the data consistency. Recently replication schemes based on the messaging order of group communication have been studied. They can reduce the deadlock frequencies using the messaging order, but they have another problem of increasing execution overhead of aborted transactions at high degree of concurrency. This is because the sender node validates global serializability after multicasting replica update messages to other nodes. In this paper, we propose an efficient eager replication scheme for reducing the number of messaging and overhead of aborted transactions significantly. The proposed scheme validates any conflicts before multicasting and does not multicast when there is any conflict; hence, it can exploit performance improvement by alleviating the message traffic for replica update or by reducing the number of disk accesses and locking delay due to aborted transactions.

• The Journal of the Korea Contents Association
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• v.19 no.11
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• pp.401-414
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• 2019

The purpose of this study is to present the results of in-depth analysis of family disintegration experience as a qualitative study to understand the meaning and nature of the experiences of marriage and divorce of women who have divorced in Vietnam. The participants were selected as six Vietnamese women who had been divorced for less than two years after five to 12 years of marriage. The collection of data and the analysis of the data were done by six concrete steps that should be followed in the scientific phenomenology suggested by Colaizzi(1978) Through this study, 74 subjects from 203 semantic meanings were derived and identified as 23 subject groups and finally organized into 7 categories. The seven categories were presented as life in Vietnam before marriage, motive of getting married, method and process of marriage, good experience of marriage, difficult experience in marriage, cause of divorce, changed life after divorce. The results of this study suggest that sexual relationship is a major conflict factor in marriage, and that this problem can lead to divorce. It is hoped that this study will help to find a solution for the dissolution of multicultural families.

• Science of Emotion and Sensibility
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• v.6 no.1
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• pp.11-16
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• 2003

In this study, we examined the evaluation of virtual Reality (VR) according to the use of motion platform. We recorded electrogastrogram, skin conductance, blood volume, skin temperature, heart rate, and the frequency of eyeblink before, during, after virtual navigation in 33 subjects. We used simulator sickness questionnaire, presence questionnaire , and self-report to evaluate cybersickness and presence in VR system. All subjects experienced VR two times in Motion platform condition and non-Motion platform condition at two-week intervals. Presence score of motion platform condition was greater than non-motion platform condition. The frequency and severity of cybersickness were significantly reduced in motion platform condition than non-motion platform condition. These results suggest that the use of motion platform that synchronizes visual presentation provides higher presence and reduces cybersickness.

• Science of Emotion and Sensibility
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• v.17 no.2
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• pp.25-34
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• 2014

The current study investigates the impacts of empathic concern, as a personal trait, and rational/emotional appeal on responses over the campaigns to help the disabled. Empathic concern is an emotional personality known as strongly activating altruistic motivations. The experiment proceeded at two stages that in the first stage, the personal disposition was measured and in the second stage, the condition of appeal type was presented. Thus, the whole experimental design was empathic concern(2) ${\times}$ appeal type(2) on attitudes and behavioral intention. Individuals high in empathic concern showed higher ratings, compared to people low, on attitudes and behavioral intention in the condition of rational appeal. The difference between high and low empathic concern in the condition of emotional appeal was small.

• Journal of Oriental Neuropsychiatry
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• v.15 no.1
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• pp.187-196
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• 2004

Objective: This clinical study was aimed to search the therapeutic effects of Oriental Medicine in Submaxillary Tremor. In Oriental Medicine, the tremor of the elder is caused by Gansinyinheo and Qihyeolyangheo. Besides, it has relation to liver, kidney, heart, and spleen according to Jangbu theory. On the basis of this theory, we performed various treatment on Submaxillary Tremor. Method: We carried out three people cases who are elder female-patients with Submaxillary Tremor. We treated them with Herbal medicine(Jihwangyeumjagami, Guibiondamtanggami), acupuncture(Ganjeonggyeok), and moxibustion on Baekhoi(GV20). Result and Conclusion: As the result of our treatment, Submaxillary Tremor was disappeared and some other symptoms were improved.

• Therapeutic Science for Rehabilitation
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• v.4 no.1
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• pp.29-38
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• 2015

Objective : The purpose of the study is to propose the treatment methods for problem of handwriting, micrographia in Parkinsons disease. Methods : For this purpose, foreign literatures on the subjects with Parkinsons disease was researched. Results : The results of this review is summarized as follows. The treatment methods for micrographia were applied to external cue and feedback among motor learning strategies in order to improve motor initiation. The external cues included visual, auditory, and verbal stimulations, and feedback strategy was visual stimulation. For writing with external cue or visual feedback, result in expanding the size of the letters in addition, writing task performance is maintained for a short period without those. Conclusion : Further studies are needed to examine the strategy maintained effect for long periods.

• Korean journal of food and cookery science
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• v.31 no.4
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• pp.413-422
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• 2015

The purpose of this study was to examine the effects of a lifestyle consisting of a health oriented diet and personal motivation toward health improvement on an individual's desire to participate in condolence or "healing" -workshops and programs. In order to examine the influence of the "health diet" and motivation, the "health diet" lifestyle was classified into nutrition pursuit factors, psychological factors, food safety factors, and health conscious consumption factors. Personal motivation was categorized into perceived benefits, environmental factors and the individual's desire for happiness. Empirical analysis showed that nutrition pursuit factors had an impact on perceived benefits and the desire for happiness. Psychological aspect factors had a significant influence on perceived benefits, environmental factors and the desire for happiness. However, food safety factors and health conscious consumption factors did not have an effect on individual motivation to improve health. Regarding personal motivation toward health improvement on the desire for "healing", perceived benefits and environmental factors had significant influence. However, the individual's desire for happiness did not influence the demand for "healing". Regarding the effect of a "health diet" on the desire for "healing", only the psychological aspects of a "health diet" had any significant effects on the desire for "healing". The results from this study can help local organizations or service companies that provide "healing" programs with developing effective marketing strategies that could lead to greater customer satisfaction. Especially, the significant influence of psychological aspects of a "health diet" on the demand for "healing" is noteworthy in that this could play a key role in establishing a more effective marketing strategy to attract increasing numbers of consumers using health conscious diets.

• Korean journal of food and cookery science
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• v.32 no.6
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• pp.754-761
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• 2016

Purpose: This study was investigated the effects of culinary and foodservice major selection motive and work value on the major satisfaction, career search efficacy and career exploration behavior of college students. Methods: Survey comprising total 53 questions including 8 for major selection motive, 8 for work value, 6 for major satisfaction, 20 for career search efficacy, 5 for career exploration was distributed to 400 college students majoring in culinary or foodservice. Frequency analysis, factor analysis, correlation analysis, and multiple regression were conducted using SPSS Statistics (ver. 21.0). Organization of concept and analyses of the relationship between variables based on the advanced study and database is essential. Research model based on the theory and analysis of the extracted data was established; and subsequently, the proof relations between the variables were analysed. Results: The study results indicated that, only intrinsic work values among personal motivation and work values were significant. This is because personal motivation and intrinsic work values are related to subjects' aptitudes, interests, talents, and future professions when students choose their majors. Therefore, interest, abilities, achievement, high understanding, and satisfactory schooling are important factors. Conclusion: This study has newly expanded the research on career search behavior to include psychological factors and cognitive and attitudinal factors. We also determined competitive operations that enhance students' major satisfaction, career search efficiency, and career search behavior.

• Journal of Oriental Neuropsychiatry
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• v.23 no.2
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• pp.67-84
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• 2012

Objectives : The purpose of this study is to evaluate the effects of Yeongkyekamjo-tang on patients with menopausal disorder. Methods : We recruited 3 patients with menopausal disorder, who have been suffering from palpitation and depression. In addition, the patients had been administrated Yeongkyekamjo-tang. The patients of menopausal disorder had been estimated with Kupperman's index, Beck's Depression Inventory, The Menopause Quiz of Argosy University, visual analogue scale and Heart rate variability. We measured the Kupperman's index, Beck's Depression Inventory and The Menopause Quiz of Argosy University for every seven days. The heart rate variability was estimated twice, before and after the treatment. Results : After the treatments, symptoms of menopausal disorder were decreased. Conclusions : This study suggests that Yeongkyekamjo-tang is significantly effective on patients with menopausal disorder as well as palpitation and depression.