• Journal of Convergence for Information Technology
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• v.10 no.1
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• pp.44-50
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• 2020

This study was performed to examine the effect of convergence-based simulation education on the problem solving ability and self-efficacy and confidence of core fundamental nursing skill performance for nursing students. A non equivalent control group post-test only design was utilized(experimental group(n=97), control group (n=87)). Data were analyzed using independent t-test, Chi-square test and Pearson's correlation. The scores of the problem solving ability(t=-2.04, p=.043) and confidence of core fundamental nursing skill performance(t=5.31, p<.001) were higher than those of the experimental group than control group. It is necessary to find ways to iterative and convergent research that verifies the continuous development and effectiveness of various courses.

• Korean Journal of Clinical Laboratory Science
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• v.37 no.3
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• pp.220-227
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• 2005

Recently, the use of an electrical apparatus has brought up concerns of health risks from exposure to electromagnetic fields. EMF is composed of electric fields and magnetic fields. Heavy exposure to EMF can occur only in the vicinity of high-voltage overhead transmission lines, close to transformers and underground cables, and also close to large electrical machinery. In this thesis I have investigated the hypothesis of the correlation between occupational exposure to ELF-EMF and the risks of leukemia, anemia, cancer. Therefore, the aim of this study is to investigate whether or not ELF-EMF emitted from electric power stations and transformer substations affect some hematological parameters and tumor markers of electric utility workers. The hematological test results and tumor markers under investigation were similar in the two groups but some of parameters such as RBC, AFP, LDH showed significant difference between the two groups from two sample t-test (p<0.05). The exposure group showed increased LDH level compared to the control group by two sample t-tests. In addition, the abnormal LDH level in the exposure group was observed to be clinically significant by ${\chi}^2$-test. However, the levels of RBC, AFP observed were not clinically significant by ${\chi}^2$-test (p>0.05). These results suggested that ELF-EMF does not affect most blood test parameters except LDH of electric utility workers.

• Korean Architects
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• no.5 s.87
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• pp.3-5
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• 1976

본 연구는 서울시에 분포되어 있는 1급 건축설계사무소중 34개소에서 122명의 건축설계 종업원을 대상으로 건축설계사무소의 규모에 따른 종업원들의 직업에 대한 만족도, 사기가치관 작업조건에 대한 태도등의 심리학적 변화도를 조사하였다. 이상의 사항에 대한 자료는 규모에 따라 3그룹으로 분류하여 Chi-Test와 T-Test 검정법에 의하여 설계사무소 규모별 각종변수들의 상이점을 분석 확인하였다. 결론에서 종업원들의 권익보호 동기유발 사기확장등에 관한 문제점의 해결방안과 기업의 확대와 안전성을 위한 이상적인 조직형태에 대한 모델을 제시하였다.

• Journal of the Korean Society of School Health
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• v.12 no.2
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• pp.321-337
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• 1999

The purpose of this study was to obtain basic data for the prevention and control of adolescent back pain through analyzing connections between study environments and physical posture. The subjects were 960 male general high school students in the Chonju area and the data were collected by a self-reported questionnaire from Mar. 17 to Mar. 22, 1999. The collected data were analyzed by a frequency, chi-square and t-test using an SPSS program. The results are as follows; 1) The experience rate of back pain perceived by subjects was 67.5% and by each grade: 1st-27.5%, 2nd-35.4%, 3rd-37.1%. The relationship between grades and the experience of back pain didn't show any significant difference. 2) The causes of back pain perceived by subjects such as 'postures are not good' was 56.7%, 'sitting too much time in a chair' was 39.1%, and 'too severe exercise' was 32.4%. 27.8% had back pain first during the 3rd grade of middle school, and 23.9% had it first during the 1st grade of high school. 3) Intensity of subjects' back pain spread from 'moderate' at 49.6%, to 'severe' at 16.4%. Concerning the frequency of back pain, 58.6% said it was 'irregalar'. 4) Among interventions to deal with back pain: 'move by exercising my back or ask friends to beat my back' was 41.0%, 'just bear it' was 23.1%, and at home 'don't have 'any treatment' was ranked first, at 54.9%. 5) The relationship between subjects' general characteristics and back pain experiences: height (t=-1.99, P=.046), sitting/height (t=-2.61, P=.009), self-perceived condition of health (${\chi}^2=23.530$, P=.000), family history (${\chi}^2=43.903$, P=.000) showed significant difference, but the kinds of transportation, sleeping postures, sleeping method and smoking didn't show significant differences. 6) The relationship between subjects' learning environment and back pain experiences, the height of students' desk and chair showed significant difference (${\chi}^2=23.054$, P=.000), but the sitting time didn't show significant difference. 7) The relationship between the characteristics of subjects' physical postures and back pain experiences: standing postures (${\chi}^2=15.105$, P=.001), and sitting postures (${\chi}^2=20.264$X2, P=.001) showed significant difference, but lifting postures didn't show significant difference.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.3
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• pp.1197-1206
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• 2013

The purpose of this study was to develop a suction care education program and to evaluate the effects on clinical performance, self-efficacy, and problem-solving process regarding suction practice. The participants were 96 in second-year nursing students at P university in Pusan, Korea. The data was collected from Oct. 6th toward Oct. 19th, 2011, and analyzed by ${\chi}^2$, t-test, ANCOVA test using SPSS 18.0. The scores of clinical performance were 23.72 in the experimental group who learned this program and 22.16 in the control group, and were statistically significant(p<.001). Self-efficacy were 7.58 in the experimental group and 7.08 in the control group, which was statistically significant(p=.03), and the pre-to-post difference of self-efficacy was statistically significant as well(p<.001). However, there were no significant differences in the problem-solving process(p=.06) and the pre-to-post difference related to this(p=.011). This study showed that clinical performance and self-efficacy were improved by suction care education program.

• Korean Journal of Adult Nursing
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• v.23 no.4
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• pp.386-396
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• 2011

Purpose: This study was conducted to examine the level of physical activities at time points of pre-illness and current treatment, and the differences in body mass index (BMI), anxiety, depression and fatigue according to their physical activity in cancer patients undergoing chemotherapy. Methods: The survey was used with 126 cancer patients undergoing daily chemotherapy at injection room, cancer clinic of C University Hospital in G city. Data were collected from June to September, 2009 using a structured questionnaire. The data were analyzed by descriptive statistics, chi-square, Fisher's exact test and t-test using SPSS/WIN15.0. Results: The significant increase in physical activity was reported from pre-illness to the time in treatment (${\chi}^2$=69.027, p<.001). The anxiety level of the group with increased physical activity was significantly lower than those who did not (t=-2.218, p =.028). There were no significant differences in BMI, depression, and fatigue according to physical activity. Conclusion: The level of physical activity was significantly associated with the anxiety level of the cancer patients undergoing chemotherapy. Cancer patients should been encouraged regular physical activity during chemotherapy treatment. And an appropriative nursing intervention should be established in order to motivate cancer patients to increase physical activity.

• The Journal of Asian Finance, Economics and Business
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• v.7 no.2
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• pp.213-219
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• 2020

Studies related to Electronic Word-of-Mouth (eWOM) show that the acceptance of eWOM information is an important factor in customer purchase decisions. When consumers accept eWOM information, they tend to use that information in considering before making purchase decisions. In Viet Nam, there are few studies about eWOM information, especially on the acceptance of eWOM information. Research is conducted to test the influence of consumers on the perception of the senders' identity to the acceptance of online reviews (a kind of eWOM) in Viet Nam - a case study in Ho Chi Minh City. Using adjustment techniques, inspecting the scales and a theoretical model represent the relationship among the influential factors. The research is based on a sample of 522 consumers who use the Internet to search for product reviews before buying and used Structural Equation Modeling (SEM) to test the relationships among the variables. The research results show that the scales of the variables: Message Quality, Source Credibility, Perceived Message Usefulness, Perceived Senders' Identity, Perceived Message Credibility, Message Acceptance attain the validity and reliability in the research. The research contributes to the understanding of the determinants that influence the acceptance of eWOM information, which are informational factors, and factors related to consumer skepticism.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.14 no.1
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• pp.15-23
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• 2004

Westfeld analyzed a sequential LSB embedding steganography effectively through the $\chi$$^2$statistical test which measures the frequencies of PoVs(pairs of values). Fridrich also proposed another statistical analysis, so-called RS steganalysis by which the embedding message rate can be estimated. This method is based on the partition of pixels as three groups; Regular, Singular, Unusable groups. In this paper, we propose a new steganographic scheme which preserves the above two statistics. The proposed scheme embeds the secret message in the innocent image by randomly adding one to real pixel value or subtracting one from it, then adjusts the statistical measures to equal those of the original image.

• The Korean Journal of Rehabilitation Nursing
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• v.15 no.1
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• pp.39-46
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• 2012

Purpose: This study was to examine the relationship between mental health status and suicidal thinking among cancer patients. Methods: The data set of the 4th Korea National Health and Nutrition Survey (2009) was used and 230 subjects with cancers were included in the present study. Using SPSS/WIN 18.0 program, data were analyzed with descriptive statistics, ${\chi}^2$ test and logistic regression analysis. Results: About one-third of subjects had stress, symptoms of depression and suicidal thinking. Female had more suicidal thinking than male (${\chi}^2$=5.44, p=.020). In addition, subjects with high income level had more thinking about suicide compared with those in low income level (${\chi}^2$=7.54, p=.023). There was a significant difference in suicidal thinking according to the educational levels (${\chi}^2$=13.25, p=.004). In the logistic regression analysis, it was indicated that gender, depression and stress were significant predictors on suicidal thinking, accounting for 26.7~38.1%. Conclusion: From the findings in this study, it was suggested that the healthcare providers should try to improve their mental health status in order to prevent suicidal thinking among the individuals diagnosed with cancer.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.9
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• pp.156-162
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• 2016

This study was conducted to investigate the effects of a death education program on self-esteem, spiritual well-being, and pain in adults. This investigations employed a nonequivalent control group non-synchronized design, and was performed in C hospital located in Chungju, Chungcheongbukdo province, Korea from January 4-13, 2016. The study included 48 participants who agreed to enrolled. Participants were randomly divided into an experimental and a control group of 22 and 26 applicants each. Participants (n=22) in the experimental group participated in the death education program for 2 hours, three times a week for 2 weeks. The effects of treatment were measured using a structured questionnaire to evaluate self-esteem, spiritual well-being, and pain before and after 2 weeks of intervention. Data were analyzed using a t-test, chi-squared test, Fisher's Exact-test and a paired t-test. The experimental group showed significantly increased self-esteem (P<0.002) and spiritual well-being (P<0.015), and significantly reduced pain (P<0.014) compared to the control group after 2 weeks of intervention. Overall, the death education program was shown to be an effective nursing intervention for adults; therefore, of its use in various fields should be considered.