• Journal of Animal Science and Technology
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• v.61 no.5
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• pp.260-271
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• 2019

The objective of this study was to determine the effect of different stocker management programs on skeletal muscle development and growth characteristics, satellite cell (SC) activity in growing-finishing beef cattle as well as the effects of SC-conditioned media on preadipocyte gene expression and differentiation. Fall-weaned Angus steers (n = 76; $258{\pm}28kg$) were randomly assigned to 1 of 4 stocker production systems: 1) grazing dormant native range (NR) supplemented with a 40% CP cottonseed meal-based supplement ($1.02kg{\cdot}steer^{-1}{\cdot}d^{-1}$) followed by long-season summer grazing (CON, 0.46 kg/d); 2) grazing dormant NR supplemented with a ground corn and soybean meal-based supplement fed at 1% of BW followed by short-season summer grazing (CORN, 0.61 kg/d); 3) grazing winter wheat pasture (WP) at high stocking density (3.21 steers/ha) to achieve a moderate rate of gain (LGWP, 0.83 kg/d); and 4) grazing winter WP at low stocking density (0.99 steers/ha) to achieve a high rate of gain (HGWP, 1.29 kg/d). At the end of the stocker (intermediate harvest, IH) and finishing (final harvest, FH) phases, 4 steers / treatment were harvested and longissimus muscles (LM) sampled for cryohistological immunofluorescence analysis and SC culture assays. At IH, WP steers had greater LM fiber cross-sectional area than NR steers; however, at FH, the opposite was observed (p < 0.0001). At IH, CORN steers had the lowest Myf-5+:Pax7+ SC density (p = 0.020), while LGWP steers had the most Pax7+ SC (p = 0.043). At FH, CON steers had the highest LM capillary density (p = 0.003) and their cultured SC differentiated more readily than all other treatments (p = 0.017). At FH, Pax7 mRNA was more abundant in 14 d-old SC cultures from HGWP cattle (p = 0.03). Preadipocytes exposed to culture media from proliferating SC cultures from WP cattle isolated at FH had more $PPAR{\gamma}$ (p = 0.037) and less FABP4 (p = 0.030) mRNA expression compared with NR cattle. These data suggest that different stocker management strategies can impact skeletal muscle growth, SC function, and potentially impact marbling development in growing-finishing beef cattle.

• Korean Journal of Adult Nursing
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• v.23 no.6
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• pp.595-604
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• 2011

Purpose: This study was conducted to examine the effects of the nurse-led one-on-one discharge education on the levels of symptom experience and self-care compliance among patients with chronic obstructive pulmonary disease (COPD) who had not previously participated in an education or respiratory rehabilitation program. Methods: This study used a quasi-experimental pre-and post-test design with nonequivalent control group. Sixty seven hospitalized patients (34 for experimental and 33 for control groups) were recruited from in-patient units of a general hospital from August to November, 2010. The one-on-one education session of symptom management and daily self-care was administered to experimental group for 50 minutes along with a follow-up phone call. Self-administered questionnaire was administered at the pretest and at 1 month after discharge. Results: The subjects were 67.43(${\pm}10.24$)years old in average. The mean differences of symptom experience (t=3.39, p=.001) and self-care compliance (t=-38.13, p<.001) in the experimental group was significantly higher than those of the control group. Conclusion: Nurse-led one-on-one discharge education was effective in reducing the level of symptom experience and enhancing self-care compliance at home within one month after discharge. Therefore, this form of one-on-one education provided by nurses might be applicable effectively for COPD patients who do not have access to respiratory rehabilitation programs.

• Journal of the Korean Society of School Health
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• v.23 no.1
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• pp.1-10
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• 2010

Purpose: The purpose of this study was to investigate factors influencing health promoting behavior of the late school age children and to analyze the difference of health promoting behavior according to personal factors of children. Methods: The subjects consisted of 169 school-aged children in the 6th grade in Gyeonggi-do. Data were collected from Dec. 1 to Dec. 10, 2008. The data were analyzed by using frequency, percentage, mean, standard deviation, t-test, ANOVA, Pearson's correlation coefficients and Stepwise multiple regression with the SPSS/WIN 12.0 program. Results: 1) Health promoting behavior was proved to be relatively high. The average item score for the health promoting behavior was $3.85{\pm}.41$. The highest degree of health promoting behavior was stress management (4.13). whereas the one with the lowest degree was exercise (3.40). 2) In the relationship between personal factors and health promoting behavior, there were statistically significant differences in gender, perceived health status, family mood, father's drinking habits, school performance, school satisfaction. 3) Health promoting behavior was showed significant positive correlations with perceived self-efficacy (r=.55), social support (r=.65), prior related behaviors (r=.44), perceived benefits of action (r=.42), and significant negative correlations with perceived barriers of action (r=-.37). 4) Stepwise multiple regression analysis was revealed that the most powerful predictor of health promoting behavior was social support ($\beta$=0.36) Conclusion: The combination of social support, perceived self-efficacy, perceived benefits of action, gender, and family mood accounted for 57.8% of the variance in the health promoting behavior of the late school age children.

• Journal of East-West Nursing Research
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• v.17 no.2
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• pp.81-86
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• 2011

Purpose: The purpose of this study was to examine job involvement according to working pattern and daytime sleepiness in hospital nurses. Methods: At 2 hospitals in affiliation of university, after obtaining participant's consent form, data were collected from October to November, 2007. Twohundred fifty nurses participated in the study. Questionnaire consisted of Epworth Sleepiness Scale (ESS), Job Involvement. Collected data was analyzed with SPSS 14.0 program, which was used for frequency, percentage, mean, standard deviation, t-test and Pearson correlation coefficients. Results: Major findings of this study were as follows 1) The nurses for 3 shift work was 172 (68.8%), the nurses for 2 shift work was 3 (1.2%) and the nurses for day fixation was 75 (30.0%). 2) Mean of ESS was 5.94 (3.28), daytime sleepiness was 13.2% and Job involvement had a mean of $21.27.{\pm}4.61.3$) There were significant differences between shift work and day fixed work on ESS (t=4.33, p<.001), job involvement (t=6.54, p<.001). Higher ESS were significantly related to lower job involvement (r=-.185, p=.003). Conclusion: The finding of this study gives useful informations about sleep and work involvement of hospital nurses. It is need to develop systemic management for shift work nurses by hospital, nurse organization, and government.

• Korean Journal of Adult Nursing
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• v.20 no.6
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• pp.941-949
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• 2008

Purpose: This study was conducted to describe the effects of aroma inhalation on sleep and fatigue in night shift nurses. Methods: The research design was one group pre-posttest design. The subjects were 17 night shift nurses who work at neurosurgery intensive care unit of K hospital of C university in Seoul. During three consequent night shifts, the participants were worn the Actigraph to measure the sleep pattern on their wrist since their first night shift work. The quality of sleep and fatigue was measured by survey when they awoke at 6 pm after second night shift work. And these measures were repeated during the night shifts in second and third week. Aroma inhalation was applied before going to bed after finishing each night shift work during second and third week. SPSS 12.0 program was used for data analysis. Results: There were no statistically significant differences in sleep latency and total sleeping time. However, significant differences were found in the sleep efficiency, awakening number, sleep quality, subjective symptom and intensity of fatigue. Conclusion: These results showed that aroma inhalation had positive effects on the pattern and quality of sleep and reducing fatigue in night shift nurses.

• Journal of Korean Academy of Nursing
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• v.29 no.4
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• pp.817-828
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• 1999

This is a descriptive study on quality of life(QOL) and related factors of ostomates to provide a basic data for development of nursing interventions. The subjects were 110 ostomates who were members of the Daegu or Daejon branches of the Korean Ostomy Association. Data collection was performed between March 1st and April 6th, 1998. Measurements of QOL, self-care, family support, self-esteem, and hope were used as the study tools. Data were analyzed with the SAS program by using t-test, ANOVA Pearson correlation and stepwise multiple regression. The results are as follows : 1) The score on the QOL scale ranged from 97 to 226 with a mean of 164.53($\pm$28.29). 2) The score of QOL on the general and ostomate-related characteristics showed significant differences according to monthly income, monthly participation in ostomate meetings, combined treatments after operation, types of evacuation management, problems of ostomy, help in caring for the ostomy, length of time since ostomate surgery, and presence or absence of readmission after discharge. 3) There were significant positive correlations between quality of life and other factors : self-esteem(r＝0.7107, P＜0.001), hope(r＝0.6584, P＜0.001) family support(r＝0.6191, P＜0.001), perception of health condition(r＝0.6017, P＜0.001), and self-care (r＝0.2286, P＜0.05). 4) The variables that affected the quality of life of the subjects were self-esteem, level of family support, perception of health condition, monthly participation in ostomate meetings, combined treatments after operation, monthly income, level of hope, and age in that order. The variance of quality of life was $R^2$＝77.20 percent by calculating the sum of those variables. In conclusion, it is necessary for nursing intervention to promote self-esteem, family support, and hope in the care of ostomates in order to improve QOL.

• Research in Community and Public Health Nursing
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• v.15 no.4
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• pp.639-647
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• 2004

Purpose: The purpose of this study was to analyze the need for hospice care programs in families of patients with cancer. Method: The study surveyed 98 families who were taking care of patients with cancer. This survey was conducted from August 2004 to October 2004 at two general hospitals in Seoul. The data were collected through a self-reporting questionnaire of 22 items. The items were classified into five areas by factor analysis to identify the construct validity. The reliability of the tool was established by Cronbach's alpha as .93 and the data collected were analyzed by descriptive statistics, t-test and ANOVA. Results: 1) The degree of need for hospice care of the subjects showed a high average of $3.26({\pm}3.7$). The need for 'emotional care of patients showed the highest mean' (M=3.47), 'management of terminal physical symptoms' (M=3.34), 'control of secondary physical problems' (M =3.26), 'acceptance of the family's difficulty' (M=3.12), 'spiritual care for preparing for death' (M=2.96), respectively. 2) With respect to the demographic characteristics of the subjects, there were statistically significant differences in hospice care needs, according to the onset of diagnosis (F=3.110, p=.030). Conclusion: Hospice care must be provided considering the needs of families of patients with cancer. In this sense, this country's needs as well as hospice nurses' higher concern and support for hospice care of patients require further education and program development to meet the current demands.

• Journal of Digital Convergence
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• v.18 no.10
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• pp.361-370
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• 2020

This study identified the effect of menstrual attitude, life stress and clinical practice stress on premenstrual syndrome of nursing students. Data were analyzed with the SPSS 22.0 program using descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient and simple linear regression. Premenstrual syndrome was significantly negative correlated with menstrual attitude (r=.28, p=.004), positive correlated with life stress (r=.31, p=.001) and clinical practice stress (r=.29, p=.003). The factors that influence premenstrual syndrome were regular exercise (β=.-.18, p=.006) and dysmenorrhea (β=.51, p=.000), which explained 38.0%.

• Particle and aerosol research
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• v.17 no.3
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• pp.55-69
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• 2021

Chungnam region accounts for the largest SO_X (22.8%) emission with the second-largest NO_X (10.8%) emission in Korea due to the integration of many large industrial sources including a steel mill, coal-fired power plants, and petrochemical complex. Air pollutants emitted by large industrial sources can cause harmful problems to humans and the environment. Thus, it is necessary to understand dispersion patterns of air pollutants from large industrial sources in Chungnam to characterize atmospheric contamination in Chungnam and the surrounding area. In this study, seasonal atmospheric dispersion characteristics for SO_X, NO_X, and PM2.5 from ten major point sources in Chungnam were evaluated using HYSPLIT 4 model, and their contributions to SO₂, NO₂ concentrations in the regions near the source areas were estimated. The predictions of the HYSPLIT 4 model show a seasonal different dispersion pattern, in which air pollutants were dispersed toward the southeast in winter while, northeast in summer. In summer, due to weaker wind speed, air pollutants concentrations were higher than in winter, and they were dispersed to the metropolitan area. The local emissions of air pollutants in Taean area had a greater influence on the ambient SO₂ and NO₂ concentrations at Taean, whereas SO_X and NO_X emissions from large sources located at Seosan showed relatevely little effect on the ambient ambient SO₂ and NO₂ concentrations at Seosan.

• Journal of Digital Convergence
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• v.12 no.1
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• pp.457-466
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• 2014

This study aimed to investigate the awareness and utilization of Complementary and Alternative Medicine (CAM) in hypertension or diabetes patients to participate in health class in rural community health center. A total of 177 hypertension or diabetes patients were participated in this study. Data were collected using face-to face interviews and were analyzed using the SPSS WIN 18.0 program. About 56.5% of subjects experienced CAM and 16.0% of subjects told heath care providers about CAM. General awareness of CAM was $3.11{\pm}0.58$ in 5 point, and awareness significantly positively correlated with intention to reuse CAM, recommend CAM, and participate in CAM-related education (r=.604, r=.516, r=.419, p<.001). Health care providers such as doctors and nurses need to be concerned about CAM utilization and awareness in chronic disease patients. These findings can be used in developing effective strategies for health care providers and health policy makers to provide right awareness and utilization of CAM for chronic disease patients and the public.