• Management & Information Systems Review
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• v.10
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• pp.1-31
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• 2002

As the modern society is called the narcissistic society, the narcissism is widespread in the personality of individuals and the society at large. In consideration of this side, this study explored for several characteristics of the narcissistic personality and the job stress, and explored for the relationships between the two things theoretically. The narcissism is an attempt to repair self-esteem weakened by the splitting anxiety, the lack and the pathological fusion of self-structure. The job stress is a factor that a characteristic of the job influenced on the behavioral and affective response of the person on the job directly or indirectly. This study selected organizational justices, organizational constraints, role conflict, role ambiguity, role overload, organizational climate, interpersonal relations and career development as factors of the job stress. This study viewed that the stress is made from an interaction between environmental stimulus and personal particular reaction by defining the stress as an interaction model of stimulus-response and personal reaction is caused by psychological adjustment process, personal differences. On this occasion, this study discussed that the narcissistic personality is easy to get stress and weak in the job stress with regarding the personality as a mediation variation of psychological process. As a result, the narcissists estimated themselves positively and their self-esteem is high, but they excessively showed a self biased cognitive and affective response about the negative feedback to protect themselves. Moreover, this positive estimate on themselves and high self-esteem was vulnerable and weak in the self threat. In this view, the narcissistic personality is easy to get more job stress such as organizational justices, organizational constraints, role conflict, role ambiguity, role overload, organizational climate, interpersonal relations and career development.

• Journal of Korean Medicine for Obesity Research
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• v.4 no.1
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• pp.161-183
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• 2004

Context : Oriental medicine deals with mind cardinally and effectiveness of CBT on weight control is well-known. but there is no well-structured psychotherapy for weight control like CBT in Oriental medicine so far. Therefore It is necessary to develop new cognitive program based on the theory of Oriental medical. Objective: This study examined whether Yangsung program based on new cognitive weight regulation model is effective on weight loss, self esteem and self control. Design and setting: 44 women were assigned randomly to 2 groups; experimental group(n=24) and control group(n=10). experimental group had 11 sessions consisted of cognitive therapy, meditation, general diet and exercise education. Control group had personal interview with general diet and exercise education and ear acupuncture once a week for two months. All subjects were weighed and evaluated with Rosenberg self esteem scale, and three factor eating questionnaires at the beginning of the program and at the end of the program. Result: Experimental group reported significant changes of weight, self esteem, restraint eating, disinhibition and hunger(p<0.01). Compared with control group, more significant(p<0.05) Weight reduction and self-esteem enhancement were reported in experimental group than control group. There is no significant difference between two groups in changes of restraint eating, disinhibition and hunger.

• Journal of Microbiology and Biotechnology
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• v.22 no.3
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• pp.422-430
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• 2012

Previous studies have demonstrated that repeated restraint stress in rodents produces increases in depression and anxiety-like behaviors and alters the expression of corticotrophin-releasing factor (CRF) in the hypothalamus. The current study focused on the impact of Bupleurum falcatum (BF) extract administration on repeated restraint stress-induced behavioral responses using the forced swimming test (FST) and elevated plus maze (EPM) test. Immunohistochemical examinations of tyrosine hydroxylase (TH) expression in rat brain were also conducted. Male rats received daily doses of 20, 50, or 100 mg/kg (i.p.) BF extract for 15 days, 30 min prior to restraint stress (4 h/day). Hypothalamic-pituitary-adrenal axis activation in response to repeated restraint stress was confirmed base on serum corticosterone levels and CRF expression in the hypothalamus. Animals that were pre-treated with BF extract displayed significantly reduced immobility in the FST and increased open-arm exploration in the EPM test in comparison with controls. BF also blocked the increase in TH expression in the locus coeruleus of treated rats that experienced restraint stress. Together, these results demonstrate that BF extract administration prior to restraint stress significantly reduces depression and anxiety-like behaviors, possibly through central adrenergic mechanisms, and they suggest a role for BF extract in the treatment of depression and anxiety disorders.

• Proceedings of the Korean Society of Food Science and Nutrition Conference
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• 2001.12a
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• pp.22-37
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• 2001

Melatonin is secreted during the hours of darkness and is thought to influence the circadian and seasonal timing of a variety of physiological processes. Serotonin N-acetyltransferase (AA-NAT) which is found to be expressed in pineal gland, retina, and various tissues, catalyses the conversion of serotonin to N-acetylserotonin and is known as the rate-limiting enzyme in the biosynthetic pathway of melatonin. The compounds that modulate the activity of AA-NAT can be used to treat serotonin-and melatonin-related diseases such as insomnia, depression and seasonal affective disorders (SAD). Several assay methods have been developed by which to measure AA-NAT activity. We have also developed a simple, rapid and sensitive AA-NAT assay method that takes advantage of differences in the organic solubilities between acetyl CoA and N-acetyltryptamine. We screened modulators of AA-NAT activity from the water extracts of the medicinal plants. We found MNP1005 which strongly inhibited the activity of AA-NAT ($IC_{50}$=2.2$\mu$M). Enzyme inhibitory kinetic studies revealed that MNP1005 exhibited a noncompetitive inhibition toward tryptamine. The antidepressant effect of MNP1005 was investigated on behavioral despair test so called forced swimming test (FST). MNP1005 significantly increased swimming behavior by reducing immobility with treatment of 10 mg/kg when compared to the vehicle-treated control group (P < 0.05). This suggests that MNP1005 possesses antidepressant activity. The influence of chronic MNP1005 treatment on the expression of brain-derived neurotrophic factor (BDNF) was examined by in situ hybridization and Northern blot. Chronic treatment of MNP1005 blocked the downregulation of BDNF mRNA in the frontal cortex and other cortex regions in response to restraint stress.

• Korean Business Review
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• v.14
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• pp.211-235
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• 2001

The level and motivational basis of consumer involvement have been recognized as having important effects on purchase behavior. To explore the importance of hedonic aspects of involvement upon consumer purchase behavior, survey data on involvement degree and type concerning 8 product classes from 388 respondents was analyzed. Major findings of this study are summarized as follow. First of all, hedonic factor is evidenced as an important component of consumer involvement. In addition, hedonic dimension of involvement is proved to have significant effects on consumer purchase behavior in general. Secondly, analysis of the difference in behavioral tendencies between purchasing product with hedonic value(coffee) and utilitarian motive(washing machine) shows that consumers have relatively high in degree of brand differentiation, brand commitment, product knowledge in purchasing product with hedonic value. This means that hedonic aspect of product and thus hedonic involvement has not less important in predicting consumer behavior. Finally, several interactive effects, which suppot to and conflict against the previous research findings, between level and type of involvement upon purchase behaviors are detacted. This implies that hedonically induced involvement has moderating roles in the effects of consumer involvement on purchase behavior.

• Journal of the Korea Concrete Institute
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• v.14 no.4
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• pp.566-577
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• 2002

As advanced earthquake analysis/design methods such as the nonlinear static analysis are developed, it is required to estimate precisely the cyclic behavior of reinforced concrete members that is characterized by strength, deformability, and capacity of energy dissipation. However, currently, estimation of energy dissipation depends on empirical equations that are not sufficiently accurate, or experiment and sophisticated numerical analysis which are difficult to use in practice.0 the present study, nonlinear finite element analysis was performed to investigate the behavioral characteristics of flexure-dominant RC members under cyclic load. The effects of axial force, arrangement of reinforcing bars, and reinforcement ratio on the cyclic behavior were studied. Based on the investigation, a simplified method to estimate the capacity of energy dissipation was proposed, and it was verified by the comparison with the finite element analyses and experiments. The proposed method can estimate the energy dissipation of RC members more precisely than currently used empirical equations, and it is easily applicable in practice.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.31 no.3
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• pp.239-247
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• 2005

This study demonstrated that xenogenic human marrow mesenchymal stem cells (hMSCs) could elicit the regeneration of the sensory nerve after axotomy in the adult rats infraorbital nerves without immunosuppression. For this, we evaluated the behavioral testing for functional recovery of the nerve and histological findings at weeks 3 and 5 compared to controls. Xenogenic hMSCs did not evoke any significant inflammatory or immunologic reaction after systemic and local administrations. HMSCs-treated rats exhibited significant improvement on sensory recovery tested with von Frey monofilaments. At 5 postoperative weeks, in the hMSCs treated nerve, expression of myelin basic protein (MBP), neurofilament (NF) at the site of axotomy was higher than control. And mRNA expression of neurotropin receptor Trk precursor (TrkPre), nerve growth factor receptor (NGFR) and neuropeptide (NPY) in trigeminal ganglion were also higher. The number of myelinated nerve at distal stump and cells in trigeminal ganglion were higher in hMSC treated rats. So it was supposed that transplanted MSCs contributed to reducing post-traumatic degeneration and production of neurotrophic factors. Immunofluorescence labeling showed small portion of hMSCs (<10%) expressed a phenotypic marker of Schwann cell (S-100). Xenogenic or allogenic mesenchymal stem cells might have immune privileged characteristics and useful tool for cell based nerve repair.

• Journal of the Korean GEO-environmental Society
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• v.13 no.6
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• pp.73-81
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• 2012

Safety issue for offshore wind-turbine foundation becomes a crucial factor as offshore wind turbines have been scaled up. Correspondingly, there is a demand to understand the effect of soil-structure interaction on to system behavior in geotechnical engineering point of view. The p-y curve method researched in past few decades is one of the most appropriate methodology to analyze the problem. In this study, recently proposed p-y curve models for various rocks are calibrated to analyze the engineering characteristics of seabed of Jeju Island where it is known to be most suitable area for offshore wind energy farm. Step by step calibration process for p-y models is presented. Analysis results show that subgrade reaction generally increases as closer to seabed. It is also shown that the behavioral characteristics of foundation reflect well rock properties in terms of resultant moment, shear force, etc.

• Korean Journal of Health Education and Promotion
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• v.20 no.1
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• pp.187-202
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• 2003

The conveyance of health information through mass media is becoming more popular, even through recreation at television programs. This study aims to investigate the influence of health related TV programs for recreation on a practice action of health behavior. In particular, the relationship between attitude, belief, and behavioral practice of the TV audience is explored. Data was collected from 200 respondents for two weeks in May, 2002. The results showed that the motive of the TV audience for watching TV recreation programs was either entertainment or fun. They satisfied with the programs in general. However, the rate of desirable health behavior practice after watching those programs was low. The degree of practice was significantly correlated with belief, satisfaction, and application possibility of the TV audience to the program. In addition, two personal factors such as gender and subjective evaluation of personal health status were significant in influencing health behavior. The appearance of experts on programs was the most important factor influencing the belief of an audience. This implies that audiences want to have the health information fulfilling scientific evidences. It is suggested that TV recreation programs would be beneficial to most audience members for in receiving important health information, only if recreation and interest factors in the program as well as the evidence-based health information and knowledge are successfully combined.

• Journal of Digital Convergence
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• v.8 no.4
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• pp.123-136
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• 2010

The purpose of this study examines how the self-leadership in organization affects citizenship behavior and which types(transformational leadership, transactional leadership) of leadership can moderate between self-leadership and organizational citizenship behavior. Hypotheses were tested by surveying 255 employees in small and medium enterprises. we conducted exploratory factor analysis for two constructs(behavioral strategy, cognitive strategy) using oblique rotation method that did not assume independence among the factors and main factors of self-leadership were grouped together by two factors. The results of this study are as followings; First, all factors of self-leadership had a significant positive effect on the organizational citizenship behavior. Second, only transformational leadership moderated between cognitive strategy of self-leadership and organizational citizenship behavior.