• The Journal of the Korea Contents Association
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• 제17권11호
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• pp.264-273
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• 2017

The purpose of this study was to identify the relationship between volunteer activities and emotional intelligence on the major satisfaction level of nursing college students. This study was a descriptive research design to investigate 252 nursing college students in a university. The data were collected using self-reported questionnaires and analyzed by descriptive statistics, frequency analysis, t-test, one-way ANOVA, correlation analysis, and multiple regression analysis using dummy variables. As a result of the study, 71.8% of the students had experienced volunteer activities. The average level of emotional intelligence of all participants was 4.84 points out of 7, and the major satisfaction level was 3.87 points out of 5 points, each of them was above middle level. The correlations among the attitude of volunteer activity, emotional intelligence, and major satisfaction were statistically significant. The attitude of volunteer activity and emotional intelligence (r=0.329), the attitude of volunteer activity and major satisfaction (r=0.271), emotional intelligence and major satisfaction(r=0.525) showed a statistically significant difference at the significance level of 0.01. There were grade, university life satisfaction, and emotional intelligence as factors affecting major satisfaction, and the explanatory power of these factors was 41.6%. In order to improve the major satisfaction level of nursing students based on the results of this study, it was confirmed that various strategies are needed to improve university life satisfaction and emotional intelligence.

• Journal of the Korea Academia-Industrial cooperation Society
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• 제18권7호
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• pp.121-129
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• 2017

The purpose of this study was to examine the mediating effects of experiential avoidance on the relationships between life stress, depression and smartphone addiction in nursing college students. This study was conducted using a descriptive survey design. Participants were 283 nursing college students attending freshmen and sophomore yearsat one university in Jeollanam-do. Data were collected from September 1 to 15, 2015 using self-report questionnaires. Data were analyzed using descriptive statistics, Pearson's correlation coefficient, hierarchical regression and Sobel test with SPSS 21.0. There were significant positive correlations between life stress, depression, smartphone addiction and experiential avoidance. Experiential avoidance partially mediated the relationship between life stress and depression of nursing students. Additionally, experiential avoidance partially mediated the relationship between their life stress and smartphone addiction. The results show that experiential avoidance plays a key role in psychopathology and grows with depression and smartphone addiction. Based on the present findings, nursing interventions should be developed to decrease experiential avoidance, with additional consideration towards the relationship between life stress and experiential avoidance, in order to prevent depression and smartphone addiction among nursing college students.

• Journal of the Korea Academia-Industrial cooperation Society
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• 제18권11호
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• pp.594-601
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• 2017

The purpose of this study was to identify the effects of clinical nurses' intrinsic motivation, affective commitment, and turnover intention on organizational performance. Participants were 189 nurses currently working at four general hospitals in C city. Data were collected by a self-report questionnaire and analyzed by using the SPSS/WIN 18.0 program with descriptive analysis, t-test, ANOVA, Pearson correlation coefficient, and multiple regression. Mean scores were as follows: intrinsic motivation($3.02{\pm}0.57$), affective commitment ($3.47{\pm}0.71$), turnover intention ($3.30{\pm}0.59$), and organizational performance ($3.37{\pm}0.52$). Organizational performance was significantly correlated with intrinsic motivation, affective commitment, and turnover intention. Nurses with higher affective commitment and intrinsic motivation showed higher organizational performance, where as higher turnover intention was correlated with lower organizational performance. The factors that influenced organizational performance were affective commitment(${\beta}=.42$), intrinsic motivation(${\beta}=.36$), and turnover intention(${\beta}=-.11$), with an explanatory power of 51.6%. Results of this study indicate the need to evaluate and manage the significant predictors of organizational performance. Further studies are needed to identify the relationships between clinical nurses' intrinsic motivation, affective commitment, turnover intention, and organizational performance.

• Journal of the Korea Academia-Industrial cooperation Society
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• 제18권11호
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• pp.62-71
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• 2017

This study classified cities across South Korea according to their urban characteristics, selecting representative cities for respective types, and drawing a relationship among urban characteristic elements, carbon emissions, and the energy consumption of cities. For the classification of cities, the elements of the urban characteristics were examined through a review of the related literature. Factor analysis was then carried out to select the variables from among these elements. The absolute coefficient value found in the analysis was set as a standard. A classification of cities across the country was performed using these variables, and representative cities were chosen for a comparison of the characteristics of each type. For an analysis of the relationships among the urban characteristics according to the type of city, the greenhouse gases, and the energy consumption of cities, emissions of greenhouse gases, electricity consumption, and oil consumption of the representative cities were compared and analyzed by correlation analysis. The analysis results indicated that the cause of greenhouse gas emissions and electricity consumption varies according to the elements of the characteristics of the representative cities, even when they show similar emissions and consumption.

• Journal of the Korea Academia-Industrial cooperation Society
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• 제21권5호
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• pp.121-130
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• 2020

This study identified the differences and relationships between clinical practice stress, sleep quality, and daytime sleep disorder before and after clinical practice of college nursing students. The subjects were 130 students in the third year of nursing science. The results showed that the average clinical stress of the study subjects was 3.15 out of 5 points. Out of the external factors for clinical practice stress, the score for the task was 3.64. There was a significant difference in gender (t=-3.88, p<).001), subjective health status (F=5.78, p=.004), residence (F=3.20, p=.026). Nursing students showed lower sleep quality (80.0% before practice, 70.0% after practice), and those with daytime sleepiness (26.9% before practice, 42.3% after practice) were more than those of general college students. There was a difference between sleep quality (χ²=4.06, p=.004) and daytime sleepiness (χ²=6.08, p=.009) before and after clinical practice. There was also a negative correlation between daytime sleepiness and sleep quality (r=-.259, p<0.01). Therefore, strategies to reduce clinical practice stress and improve the quality of sleep are needed for the physical and mental health of nursing college students. The quality of nursing can be improved in the future by helping nursing students adapt to the clinical practice of changing nursing education field.

• Nutrition Research and Practice
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• 제10권4호
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• pp.442-447
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• 2016

BACKGROUND/OBJECTIVES: College students are in a period of transition from adolescence to adulthood, in which proper dietary habits and balanced nutritional intake are very important. However, improper dietary habits and lifestyles can bring several health problems. This study was performed to investigate blood lipid profiles, blood aluminum and mercury in college students and the relationships among them. SUBJECTS/METHODS: The subjects were 80 college students (43 males and 37 females) in Gyeonggi-do. General characteristics, anthropometric measurements, blood pressure, blood lipids, SGOT, SGPT, and blood aluminum and mercury of the subjects were measured and analyzed, and their relationship was studied. RESULTS: The BMI was significantly higher in males, $23.69{\pm}3.20kg/m^2$, than in females, $20.38{\pm}2.37kg/m^2$ (P < 0.001). The blood pressure was significantly higher in males with $128.93{\pm}12.92mmHg$ systolic pressure and $77.14{\pm}10.31mmHg$ diastolic pressure compared to females with $109.78{\pm}11.97mmHg$ and $65.95{\pm}6.92mmHg$, respectively (P < 0.001). HDL cholesterol in males, $61.88{\pm}13.06mg/dl$, was lower than $64.73{\pm}12.16mg/dl$ in females, but other blood lipid levels were higher in males. Blood aluminum was significantly higher in males, $9.12{\pm}2.11{\mu}g/L$, than in females, $8.03{\pm}2.14{\mu}g/L$ (P < 0.05), and blood mercury was higher in males, $3.08{\pm}1.55{\mu}g/L$, than in females, $2.64{\pm}1.49{\mu}g/L$. The blood lipids showed positive correlation with obesity and blood pressure. CONCLUSIONS: The degree of obesity, blood pressure, triglycerides, and LDL cholesterol were higher in males, suggesting possible association with chronic disease incidence such as hyperlipidemia and hypertension. Thus, it is considered that a systematic health education is needed for college students, especially for males.

• Asian Pacific Journal of Cancer Prevention
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• 제15권1호
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• pp.375-380
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• 2014

This study examined the incidence rates of cancer cases (averages for 2006-2010) and relationships with environmental radioactivity levels. Soil and water samples were collected from provincial and district centers of Van city and the outdoor gamma doses were determined using a portable gamma scintillation detector. Gross alpha and beta, (226)Ra, (232)Th, and (40)K activities were measured in both tap water and soil samples. Although high rates of stomach and esophagus cancers have been reported previously in Van the underlying reasons have not hitherto been defined. Incidences of cancers were highest in the Gurpmar (326.0) and Ozalp (377.1) counties (p<0.001). As to the results of the gross alpha and gross beta radioactivity measurements in the drinking water, these two counties also had high beta radionuclide levels: Gurpmar ($140mBq/dm^3$) and Ozalp ($206mBq/dm^3$). Even if within the normal range, a relation between the higher rate of the incidence of stomach and esophagus cancers with that of the higher rate of beta radionuclide activity was clear. On Spearman correlation analysis, the relation between higher beta radionuclide levels and cancer incidence was found to be statistically significant (p<0.01). According to the results of the analysis, Van residents receive an average 1.86 mSv/y annual dose from outdoor gamma radiation, ingestion of radionuclides in the drinking water, and indoor $^{222}Rn$ activity. Moreover, gross alpha and beta activities were found to be extremely high in all of the lakes around the city of Van, Turkey. Further investigations with long-term detailed environmental radiation measurements are needed regarding the relationship between cancer cases and environmental radioactivity in the city of Van.

• Magazine of the Korean Society of Agricultural Engineers
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• 제20권1호
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• pp.4575-4591
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• 1978

In order to investigate the effects of grain size distribution, cement content, and molding pressure on the strength and durability of soil-cement mixtures, a laboratory test of soil cement mixtures was performed at four levels of cement content, five levels of molding pressure, and four levels of normal curing periods. The results are summarized as follows: 1. Optimum moisture contents in loam soil and maximum dry density in sand soil increased with the increase of cement content, but in others, both optimum moisture contents and maximum dry density were changed ununiformly. 2. When the specimens were molded with molding pressure, 50kg/$\textrm{cm}^2$, strength of soil cement mixture with cement content, 2 and 4 per cent, was lower than the strength of soil cement mixture without cement content by more than 40 to 50 per cent. 3. The strength of soil-cement molded with molding pressure, 100kg/$\textrm{cm}^2$, was higher than the strength of soil-cement molded with M.D.D. obtained from standard compaction test more than 40 per cent in sand loam cement and 50 per cent in loamy cement. 4. There was highly significant positive correlation among molding pressure, cement content and unconfined compressive strentgh and so the following multiple regression equations were obtained. Loam: fc=1.9693C+0.197P-0.84 Sandy loam: fc=2.9065C+0.235P-0.77 5. When the specimens were molded with molding pressure, 20 to 100kg/$\textrm{cm}^2$, the regression equation between the 28-day and 7-day strenght was obtained as follows. Loam : q28=1.1050q7+7.59(r=0.9147) Sandy loam : q28=1.3905q7+3.17 (r=0.9801) 6. At the cement contents of above 50 per cent, the weight losses by freeeze-thaw test were negligible. At the cement content of below 8 per cent the weight losses were singnificantly high under low molding pressure and remarkably decreased with the increase of molding pressure up to 80kg/$\textrm{cm}^2$. 7. Resistance to damage from water and to absorption of water were not improved by molding pressure alone, but when the soil was mixtured with cement above 6 per cent, damage seldoms occurred and absorbed less than 5 per cent of water. 8. There was highly significant inverse-corelationship between the compressive strength of soil cement mixtures and their freeze-thaw loss as well as water absorption. By the regression equation methods, the relationships between them were expessed as followed fc=-7.3206Wa+115.6(r=0.9871) log fc=-0.0174L+1.59(r=0.7709) where fc=unconfined compressive stregth after 28-days curing. kg/$\textrm{cm}^2$ Wa=water absorption, % L : freeze-thaw loss rate, %

• Journal of Korean Society for Atmospheric Environment
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• 제23권2호
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• pp.225-241
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• 2007

A closed flux chamber system was used for measuring major greenhouse gas (GHG) emission from tideland and/or wetland soils in estuarine area at Saemankum, Kunsan in southwestern Korea during from months of February to June 2006. Hourly averaged GHG soil emissions were measured two to three times a day during the ebb tide hours only. Site soils were analyzed for soil parameters (temperature, pH, total organic contents, N and C contents in soil) in the laboratory. Soil GHG fluxes were calculated based on the GHG concentration rate of change measured inside a closed chamber The analysis of GHG was conducted by using a Gas Chromatography (equipped with ECD/FID) at laboratory. Changes of daily, monthly GHGs' fluxes were examined. The relationships between the GHG emissions and soil chemical contents were also scrutinized with respect to gas production and consumption mechanism in the soil. Soil pH was pH $7.47{\pm}0.49$ in average over the experimental period. Organic matter contents in sample soil was $6.64{\pm}4.98\;g/kg$, and it shows relatively lower contents than those in agricultural soils in Kunsan area. Resulting from the soil chemistry data, soil nitrogen contents seem to affect GHG emission from the tidal land surface. The tidal soil was found to be either source or sink for the major GHG during the experimental periods. The annual average of $CH_{4}\;and\;CO_{2}$ fluxes were $0.13{\pm}0.86\;mg\;m^{-2}h^{-1}\;and\;5.83{\pm}138.73\;mg\;m^{-2}h^{-1}$, respectively, which will be as a source of these gases. However, $N_{2}O$ emission showed in negative flux, and the value was $-0.02{\pm}0.66\;mg\;m^{-2}h^{-1}$, and it implies tidal land surface act as a sink of $N_{2}O$. Over the experimental period, the absolute values of gas fluxes increased with soil temperature in general. Averages of the ambient gas concentration were $86.8{\pm}6.\;ppm$ in $CO_{2},\;1.63{\pm}0.34\;ppm\;in\;CH_{4},\;and\;0.59{\pm}0.15\;ppm\;in\;N_{2}O$, respectively. Generally, under the presence of gas emission from agricultural soils, decrease of gas emission will be observed as increase in ambient gas concentration. We, however, could not found significant correlation between the ambient concentrations and their emissions over the experimental period. There was no GHG compensation points existed in tide flat soil.

• Journal of the Korea Academia-Industrial cooperation Society
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• 제14권12호
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• pp.6257-6264
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• 2013

The aim of this study was to identify the influencing factors and the relationships between the learning ability and stress according to the character type in nursing college students. A total of 209 subjects were selected by convenient sampling. The data was collected using a self-reported questionnaire from November 2 to 20, 2012. The differences in the character type, learning ability and stress according to the general characteristics were as follows. The character type was significantly different according to grade (F=6.551, p<.036). In addition, the learning ability was significantly different according to the grade (F=7.059, p<.001), religion (F=4.651, p<.001), school record (F=7.667, p<.001), economic status (F=7.700, p<.000) and methods of reducing stress (F=2.531, p<.030). Stress was significantly different according to the grade (F=7.414, p<.001), school record (F=4.776, p<.009) and cohabitation (F=9.989, p<.000). A negative correlation was observed between the character type and learning ability, and between learning ability and stress. 8.4% of the variance was observed in character type A, which was explained by the learning ability and stress. These findings may be useful for understanding the learning ability of nursing college students and developing more specific programs regarding personality and stress control.