• Journal of Convergence for Information Technology
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• v.8 no.5
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• pp.11-17
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• 2018

This study was conducted to analyze the factor of suicide ideation in the elderly living alone. This study is a descriptive research study of 175 elderly living alone in K&C region. It is a frequency analysis, correlation analysis, simple rare analysis. AMOS statistics were performed. Data collection was from January 2017 to March 2017. The results of this study are as follows. social activity (r=-.106, p<.05), subjective health status (r=-.292, p<.01) Self-esteem (r=-.069, p<.05), mind control(r=-.201, p<.01), and depression(r=.023, p<.01), stress (r=.320, p<.05). Suicidal influence factor 43.5% explanatory power. In order to prevent the suicide of the elderly living alone, It will be necessary to seek active nursing intervention to help prevent suicide.

• Journal of Radiation Protection and Research
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• v.43 no.3
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• pp.114-119
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• 2018

Background: The retrospective dosimetry using RTL quartz can be improved by information for an optical sensitivity of sample connected with the equivalent dose determination. Materials and Methods: The quartz sample from a volcanic rock of Japan was used. After correcting the thermal quenching effect, RTL peaks of quartz were separated by the CGCD method cooperated with the general order kinetics. The number of overlapped glow peaks were ascertained by the $T_m-T_{stop}$ method. The optical sensitivity was examined by comparing the change of intensity on RTL glow peaks measured after exposure to light from a solar simulator with various illumination times. Results and Discussion: Seven glow peaks appeared to be overlapped on the RTL glow curve. The general order kinetics model was appropriate to separate glow peaks. After exposure to light from a solar simulator from a few minutes to 416 hr, the signals for peaks P4 and P5 decayed following the form of $f(t)=a_1e^{-{\lambda}1t}$, while the signals for peaks P6 and P7 decayed by the form of $f(t) = a_1e^{-{\lambda}1t}+a_2e^{-{\lambda}2t}+a_3e^{-{\lambda}3t}$. Conclusion: For dosimetric peaks, the times taken to reduce the RTL signal to half of its initial value were 70 sec for the peak P4, 54 s for the peak P5, 9,840 sec for the peak P6 and 26,580 sec for the peak P7, respectively. We conclude that the optical sensitivity of peaks P4, and P5 gives much higher than that of peaks P6 and P7.

• International Journal of Oral Biology
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• v.43 no.3
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• pp.155-160
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• 2018

There exists very little information on the ultrastructure of substance P immunopositive (+) fibers in the human dental pulp, which may help in understanding the mechanism for substance P associated pulpal inflammatory pain. To address this issue, we investigated the presence of substance P+ fibers in the human dental pulp by light- and electron-microscopic immunohistochemistry. Light microscopy revealed that substance P+ fibers ran within neurovascular bundles in the radicular pulp and in the core of coronal pulp. They were also frequently present in the peripheral pulp. Substance P+ fibers showed beads like swellings interconnected by thin axonal strand, in a manner similar to bouton en passants and interconnecting axonal strand in the spinal cord. Electron microscopy revealed that almost all the substance P+ axons were unmyelinated. The axonal swellings of the substance P+ contained numerous clear round vesicles (40-50 nm in diameter) and many large dense-cored vesicles (80-110 nm in diameter) as well as many mitochondria. The vesicles and mitochondria were rarely observed in the thin axonal strand interconnecting the swellings. Intimate interrelationship or synaptic structure between the swellings of substance P+ axon and nearby pulpal cells or axons was not found. These findings suggest co-release of substance P and glutamate from the substance P+ pulpal axons and its action on nearby structures in a paracrine manner.

• Journal of Convergence for Information Technology
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• v.7 no.4
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• pp.205-213
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• 2017

This study was conducted to identify convergence factors affecting smoking behavior among college students through the lens of a Health Belief Model. A descriptive study was carried out with 417 college students in Jeju, South Korea. Descriptive statistics and multiple regression analysis were performed using the SPSS 19.0 program. The results showed that sex(t=-7.44, p<.001), pocket money(t=-2.06, p=.040), smoking in the family(t=4.43, p<.001), smoking of close friends(t=9.59, p<.001), and perceived barriers(t=0.87, p=.014), cues to action(t=6.33, p<.001) were statistically significant variables influencing smoking. These findings indicate that among smoking-related and health belief-related variables needs to be considered for preventive and therapeutic approach to stop smoking in college students.

• Journal of the Korea Convergence Society
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• v.11 no.3
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• pp.153-162
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• 2020

This study was conducted to identify the factors that affect the views on marriage of male and female students. Of the students recruited, 172 were male, and 185 were female. Data were collected using questionnaires about views on marriage, children, gender roles, and gender attitudes and were analyzed using the IBM SPSS 23.0 program. Data were collected from May 1, 2019 to June 15, 2019. The significant predictors of views on marriage were views on children(F=29.530, p<.001), gender roles(F=9.850, p<.001) and gender attitudes(F=7.038 p=.009), explaining 33.4% of the variance in male, were views on children(F=48.767, p<.001), gender attitudes(F=32.204, p<.001) and gender roles(F=18.904, p<.001), explaining 43.8% of the variance in female. Therefore, it is necessary to develop programs to improve views on students.

• The Journal of the Convergence on Culture Technology
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• v.7 no.4
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• pp.237-242
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• 2021

The purpose of this study was to investigate the effect of patient safety competencies and ethical climate in long-term care hospital nurses and to provide the basic data. Data were collected from 120 in D city and analyzed by t-test, ANOVA, Pearson correlation coefficient, and multiple regression using SPSS/WIN 25.0. The degree of Patient Safety Competencies in long-term care hospital nurses was 3.45± .41. There were not significant differences in Patient Safety. There was positive correlation between patient safety competencies and peer(r=.123, p<.001), manager(r=.241, p<.001), and hospital(r=.241, p<.001). The factors affecting the patient safety competencies confidence of the study subjects were peer(β=.23, p=.003), manager(β=.55, p=.004), hospital(β=.43, p=.031), with an explanatory power of 33.5%. Through this research requires the fellow study to determine the factors affecting patient safety competencies confidence of long-term care hospital nurses.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.43 no.5
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• pp.324-330
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• 2017

Objectives: There are only a limited number of studies on cyclin D1 and p63 expression in oral squamous cell carcinoma (OSCC) and leukoplakia. This study compared cyclin D1 and p63 expression in leukoplakia and OSCC to investigate the possible correlation of both markers with grade of dysplasia and histological grade of OSCC. Materials and Methods: The study included a total of 60 cases, of which 30 were diagnosed with OSCC and 30 with leukoplakia, that were evaluated immunohistochemically for p63 and cyclin D1 expression. Protein expression was correlated based on grades of dysplasia and OSCC. Results: Out of 30 cases of OSCC, 23 cases (76.7%) were cyclin D1 positive and 30 cases (100%) were p63 positive. Out of 30 cases of leukoplakia, 21 cases (70.0%) were cyclin D1 positive and 30 (100%) were p63 positive (P<0.05). Conclusion: The overall expression of cyclin D1 and p63 correlated with tumor differentiation, and increases were correlated with poor histological grades, from well-differentiated to poorly-differentiated SCC. Increased cyclin D1 and p63 expression was associated with the severity of leukoplakia. Based on these results cyclin D1 and p63 products can be a useful tool for improved leukoplakia prognosis.

• Korean Journal of Food Science and Technology
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• v.43 no.1
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• pp.114-118
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• 2011

Resveratrol is a polyphenolic compound frequently found in the diet, and its physiological actions have been extensively investigated. In the present study, modulation of the antioxidant and cytotoxic properties of resveratrol at different pHs by various antioxidants were investigated. To measure its antioxidant effects, resveratrol was incubated at different pHs, including 6.5, 7.4, and 8.0. Resveratrol incubated at pH 6.5 showed significantly higher DPPH radical scavenging activity, whereas resveratrol incubated at pH 8.0 did not show antioxidant effects. Resveratrol produced much higher amounts of $H_2O_2$ at pH 8.0 than 7.4. The cytotoxic effects of resveratrol on HeLa cells were significantly enhanced by several antioxidants, including superoxide dismutase, N-acetyl cysteine, glutathione, and ascorbic acid. The present results suggest that resveratrol shows anti- or pro-oxidant effects in different cellular organelles according to the pH conditions, and blocking of reactive oxygen species from resveratrol enhances its cytotoxic effects.

• BMB Reports
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• v.43 no.1
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• pp.9-16
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• 2010

The promoters of OsCaM1 and OsCaM3 were characterized after sequencing and fused to the reporter gene, GUS. The constructs were then transformed into the tobacco plant. Histochemical analysis of GUS showed different expression patterns in pOsCaM1::GUS and pOsCaM3:: GUS transgenic plants. The expression of pOsCaM1::GUS in 4- to 15-day-old seedlings in particular was observed only in the root, while the expression of pOsCaM3::GUS was detected in both the cotyledons and root. Also, pRCaM1::GUS was detected in all the tissues surrounding the root system, while the presence of pOsCaM3::GUS was observed in the root, except in the root meristem. However, in mature transgenic plants, the expression of pOsCaM1::GUS and OsRCaM3::GUS was scarcely detected. Under wounding stress, the GUS activity of pOsCaM1 and pOsCaM3 was strongly induced, and the activity of pOsCaM3 especially, was retained for long periods. In the phloem, pOsCaM3 activity induced by hormone treatments and abiotic stresses was also identified.

• Korean Journal of Food Science and Technology
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• v.43 no.6
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• pp.791-794
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• 2011

The aim of this study was to investigate the antimicrobial characteristics of citral against Salmonella Typhimurium and Staphylococcus aureus. Antimicrobial activities were determined according to the citral concentration and initial pH. The tested citral concentrations were 0-1,000 ppm in tryptic soy broth (TSB) and 0-5,000 ppm in Angelica keiskei juice (NokJeup). The initial pHs tested were 4-7. Antimicrobial activities increased as citral concentration increased. S. aureus was more susceptible than S. Typhimurium during culture in TSB. But S. aureus was less susceptible to pH changes. Citral caused about 1-2 log reduction of S. aureus and 2-5 log reduction of S. Typhimurium after 10 min exposure at different pHs. As the citral concentration in the Algelica keiskei juice increased, S. aureus was easily inactivated but S. Typhimurium was not inactivated.