• Journal of Dental Rehabilitation and Applied Science
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• v.27 no.3
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• pp.305-316
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• 2011

Cracked teeth are a common problem with incomplete fracture that typically shows pain on biting and temperature stimuli. The most common cause of crack is known to be the masticatory accident. Predisposing factors were aging, old restoration, and iatrogenic stress concentration, etc. Accurate diagnosis is needed for detecting the extent of crack and pulp vitality. There are many diagnostic tools like bite test, direct observation with transillumination, dye penetration, and radiographs. Immediate treatment for pain relief and occlusal adjustment would be needed. Composite resin and bonded amalgam showed favorable prognosis. Moreover, cusp protection is reliable permanent treatment for cracked teeth. The purpose of this article is to review the literature about the prevention, diagnosis, and treatment for cracked teeth.

• Fashion & Textile Research Journal
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• v.17 no.6
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• pp.932-941
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• 2015

An aging population and increasing consumer demand for high-quality and innovative new products are key drivers for growth in the cosmeceutical industry. Cosmeceuticals are defined as products with biologically active ingredients that have a measurable effect on the user. This study explored the effects of shopping orientation and store attributes on impulse buying behavior for cosmeceuticals. We obtained 437 usable questionnaires from university students who had purchased cosmeceutical products. Data analysis was conducted using confirmatory factor analysis and structural equation modeling analysis via AMOS 18.0. The findings were: 1) hedonic shopping orientation and convenience shopping orientation had positive effects on product efficacy and promotion of the cosmeceutical store 2) brand shopping orientation had a positive effects on store atmospheric, skin care service, and brand of the cosmeceuticals store and 3) product efficacy and promotion of store attributes had a direct effect on impulse buying behavior for cosmeceuticals. Consumers who tended to enjoy the shopping to refresh themselves and to experience convenient shopping were likely to purchase cosmeceuticals impulsively, which mediated by the store attributes (product efficacy and promotion). Therefore, we confirmed partly causal relationships among the shopping orientation, store attributes, and impulse buying behavior of cosmeceuticals. Both managerial and theoretical implication for practitioners and researchers were discussed for managing product information more efficiently along with promotion strategies to trigger cosmeceuticals consumers in the context of shopping.

• Journal of Physiology & Pathology in Korean Medicine
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• v.23 no.2
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• pp.294-300
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• 2009

Nowadays, as the era of aging is developing remarkably fast, conventional disease treatments such as surgery or emergency therapy are now being substituted to 'health promotion' and 'health prevention through whole-life management. Recently, many oriental medicine colleges are teaching subjects related to Yangsaeng and Gigong. However, detail investigation about the exact education situation and correlation between among subjects has not been performed yet. Thus, in this research, I collected data about each oriental medicine college's Yangsaeng/Gigong-related subjects' prevalence and management situation through the analysis of 'National Education Report about Korea's Oriental Medicine Colleges' and direct investigation, First, I analyzed oriental medicine colleges' education object. Among 11 basic medicine subjects, there were 2 subjects related to Yangsaeng and Gigong. And among 13 clinical medicine subjects, there were 7 subjects related to Yangsaeng and Gigong. In these subjects, the word 'Yangsaeng' was used for 14 times. The word 'Gigong' was used for 5 times and the words 'natural medicine' and 'alternative medicine' were used for 4 times. Total class hours related to Yangsaeng and Gigong were 19.6 hours (practice classes were 4.6 hours). Each class of subjects had 'study objects'. Study objects were categorized into A (Essential) and B (Recommendation) Items. There were44 A items and 23 B items. Among 11 oriental medicine colleges all over Korea, 10 classes related to Yangsaeng and Gigong existed in 9colleges. 7 classes were included in pre-OM course and 3 classes were included in major-OM course. 6 classes were taught only for one semester and 4 classes were taught for 2 semesters. 6 classes were single unit and 4 classes were 2-units sunjects. 3 classes were held 3 hours a week. 6 classes were held 2 hours a week and one class was held an hour per week. In conclusion, each oriental medicine college should focus on the education and research about Yangsaeng and Gigong. To achieve this object, systemic regulation and specialized human resources should also be made.

• Proceedings of the IEEK Conference
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• 2001.10a
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• pp.532-536
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• 2001

LD slag, that is, a by-product of steel making process, has been mainly used as land construction materials. Recently, the seashore application of LD slag was tried in Japan and Korea but the reaction between LD slag and seawater was not studied yet. We tried to clarify the leaching reaction and/or mechanism of LD slag and the reaction between seawater and LD slag. We tried to apply these results to the decarbonization of seawater for seawater magnesia process. The high pH solution(over 12) was injected into the sea water and the pH of mixed liquid was adjusted to 9.8. This mixed solution was aged for 8 hours and the 104ppm of CO$_3$$^{-2}$ in the sea water was decreased to 23ppm with the negligible loss of $Mg^2$$^{+}$. The slag particle was directly inserted into the seawater fur practical application. The 0.5~1mm particles were suitable for decarbonization when 5 grade slags mentioned above were reacted with sea water. In this case, the content of CO$_3$$^{-2}$ in the sea water was 53 ppm with the negligible loss of $Mg^2$$^{+}$ after 8 hours aging. The direct application of slag particle fur the decarbonization of seawater takes more reaction time.ime.

• Journal of Ginseng Research
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• v.33 no.3
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• pp.177-182
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• 2009

Macrophages play an important role in the first line of immunologic effects against tumor cells. The effects of nonsaponin red ginseng (NSRG) components on macrophage functions like tumoricidal activity, phagocytic activity, and NO production in young (8-weeks-old) and aged (82-weeks-old) male C57BL/6 mice were assessed in vitro, respectively. The treatment of tumor cells (melanoma B16 cells) with the supernatants of NSRG-treated macrophages resulted in an increase of cytotoxicity at 300 $\mu$g/ml in the aged mice, whereas the supernatants did not have a cytotoxic effect in the young mice. It was observed that the supernatants induced the increase of tumor cell proliferation at 150 $\mu$g/ml in the young mice, suggesting that the supernatants contain growth factors rather than cytotoxic molecules. In addition, NSRG alone had a direct cytotoxic effect on the B16 tumor cells. NSRG had no effect on the NO production by the macrophages in the young mice, while it significantly increased the level of NO release in the aged mice. There was no difference in the phagocytic activities of the macrophages by NSRG in both groups of mice. These results suggest that NSRG has differential effects on the macrophage functions in young and aged mice.

• Korean Journal of Social Welfare
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• v.68 no.1
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• pp.53-71
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• 2016

This study, we analyzed the following in order to verify the effects of depression on suicidal ideation. First, correlations among depression, family solidarity and suicide variables were analysed. Second, the hierarchical regression analysis was conducted to examine the effects of suicidal ideation. Third, family solidarity Sobel-test was performed to investigate whether family solidarity mediates the link between depression and suicidal ideation. The data used in the study comes from the survey conducted by Hallym Aging Research Institute in 2014. Through stratified multi-stage random sampling, 2,034 individuals aged 65 and over and living in Chun-cheon city were analysed. The result with depression and family solidarity together shows the higher the level of depression is, the more suicide ideation is. which means depression has a direct impact on suicide ideation. In addition, it indicates the higher family solidarity is, the less suicide ideation is. Sobel-test which examines indirect effects of depression on suicidal ideation through family solidarity produces a statistically meaningful result. The result is family solidarity mediates the link between depression and suicidal ideation.

• Asian Pacific Journal of Cancer Prevention
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• v.14 no.9
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• pp.5513-5518
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• 2013

IFN-${\gamma}$ plays an indirect anti-cancer role through the immune system but may have direct negative effects on cancer cells. It regulates the viability of gastric cancer cells, so we examined whether it affects their proliferation and how that might be brought about. We exposed AGS, HGC-27 and GES-1 gastric cancer cell lines to IFN-${\gamma}$ and found significantly reduced colony formation ability. Flow cytometry revealed no effect of IFN-${\gamma}$ on apoptosis of cell lines and no effect on cell aging as assessed by ${\beta}$-gal staining. Microarray assay revealed that IFN-${\gamma}$ changed the mRNA expression of genes related to the cell cycle and cell proliferation and migration, as well as chemokines and chemokine receptors, and immunity-related genes. Finally, flow cytometry revealed that IFN-${\gamma}$ arrested the cells in the G1/S phase. IFN-${\gamma}$ may slow proliferation of some gastric cancer cells by affecting the cell cycle to play a negative role in the development of gastric cancer.

• Journal of the Korea Convergence Society
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• v.6 no.5
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• pp.257-274
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• 2015

The purpose of the current study was to validate Fetzer Institute & National Institute on Aging Working Group[NIA](1999)'s Brief-Multidimensional Measure of Religiousness/Spirituality Scale (BMMRS) in Korean adults. The Korean version of BMMRS, Spiritual Well-Being Scale(SWS), Korean Sprituality Scale(KSS), Penn State Worry Questionnaire(PSWQ), and Intolerance of uncertainty Scale(IUS) were administered to the 286 students and community samples. A principle axis factoring analysis with direct oblimin rotation and Kaiser normalization identified a six-factor solution accounting for 66.24% of the variance in scores, labeled as: positive spiritual experience, negative spiritual experience, forgiveness, religious practices, negative congregational support, and positive congregational support. Confirmatory factor analysis results showed that 6 factor model of BMMRS have a good fitness. Also, the internal consistency(.64~.97) and the test-retest reliablity was adequate.(.72~.88) Korean version of BMMRS has adequate psychometric characteristics so it can be used to verify the effects of various compassion-related psychotherapeutic approaches.

• Archives of Plastic Surgery
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• v.42 no.3
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• pp.282-287
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• 2015

Background Morphological changes that accompany aging, such as wrinkles and skin laxity, are particularly prominent on facial skin. Recently, facial rejuvenation using the hydrofilling effect of hyaluronic acid (HA) filler has been employed for improvement of skin texture. In this study, we studied rejuvenating effects of stabilized HA (Restylane Vital) through direct intradermal injections. Methods A total of 30 female patients underwent a series of procedures on face, including three sessions at intervals of four weeks. A total of 2 mL of Restylane Vital was injected along the whole face using an automatic injector. Improvement of skin surface roughness, elasticity, brightness, moisture, and fine wrinkles was evaluated. Patient satisfaction was evaluated, and pictures of patients were taken at each visit and 6 months after last treatment session. Scoring for each patient was performed by three doctors according in five subjects. Moisture, oil and elasticity were measured before the procedure and before the last treatment in 10 patients. Results The majority of patients (77%) were satisfied with the therapeutic outcomes. Approximately 66% of patients responded that the effects of this procedure persisted for longer than four months, and the majority of patients (77%) wanted to undergo this procedure again and would recommend this procedure to acquaintances. Regarding doctors' evaluation, scores for improvement of skin surface roughness, elasticity, and brightness were significantly higher than those for improvement of moisture and fine wrinkle. Conclusions Intradermal injection of HA can have a rejuvenating effect on dry and tired facial skin, especially in improvement of skin surface roughness.

• Journal of Welding and Joining
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• v.31 no.3
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• pp.31-38
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• 2013

The transition of serrated grain boundary and its effect on liquation behavior in the simulated weld heat-affected zone (HAZ) have been investigated in a wrought Ni-based superalloy Alloy 263. Recently, the present authors have found that grain boundary serration occurs in the absence of adjacent coarse ${\gamma}^{\prime}$ particles or $M_{23}C_6$ carbides when a specimen is direct-aged with a combination of slow cooling from solution treatment temperature to aging temperature. The present study was initiated to determine the interdependence of the serration and HAZ property with a consideration of this serration as a potential for the use of a hot-cracking resistant microstructure. A crystallographic study indicated that the serration led to a change in grain boundary character as special boundary with a lower interfacial energy as those terminated by low-index {111} boundary planes. It was found that the serrated grain boundaries are highly resistant to boron enrichment, and suppress effectively grain coarsening in HAZ. Furthermore, the serrated grain boundaries showed a higher resistance to susceptibility of liquation cracking. These results was discussed in terms of a significant decrease in interfacial energy of grain boundary by the serration.