• Child Health Nursing Research
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• 제7권2호
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• pp.213-224
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• 2001

This study was conducted to identify the effect on the weight control of the REBT group program as a nursing intervention. For this purpose, non-equivalent control group design with pretest and posttest and follow-up test as quasi-experiment was used. Subjects of the study were consisted of twenty-four obese girls (Experimental group: 10, control group: 14) who appeared to having above 20％ of the body mass index from ane high school in M city. The whole program was carried out from January to June, 2000. Used dependent variables for evaluating the effect of the REBT group program including were weight control belief(rational thinking, emotion about exercise, eating self-efficacy, eating behavior), body mass index and serum lipids(total cholesterol, triglyceride, low-density lipoprotein, high-density lipoprotein). For evaluating the effect of the program, dependent variables was analyzed by experimental stages three times; the first week, the fourth week, and the eighth week since the experimental input began. Data were analyzed by the SAS PC＋ program with t-test, repeated measure ANOVA to determine the effect of program. The results of this study can be summarized as follows; 1. After the REBT group program, only eating self-efficacy among the weight control belief of experimental group was significantly increased than that of control group. 2. After the REBT group program, body mass index of experiment group was significantly decreased than that of control group. 3. After the REBT group program, triglyceride and low density lipoprotein among the serum lipids in the experiment group were significantly decreased than those of control group.

• Journal of Power Electronics
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• 제17권4호
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• pp.892-904
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• 2017

A design of a Class-E inverter with only one inductor and one capacitor is presented. It is operated at the optimal operation mode for domestic cooker. The design principle is based on the zero-voltage derivative switching (ZVDS) of the Class-E inverter with a parallel load network, which is a parallel resonant equivalent circuit. An induction load characterization is obtained from a large-signal excitation test bench, which is the key to an accurate design of the induction cooker system. Consequently, the proposed scheme provides a more systematic, simple, accurate, and feasible solution than the conventional quasi-resonant inverter analysis based on series load network methodology. The derivative of the switch voltage is zero at the turn-on transition, and its absolute value is relatively small at the turn-off transition. Switching losses and noise are reduced. The parameters of the ZVDS Class-E inverter for the domestic induction cooker must be selected properly, and details of the design of the components of this Class-E inverter need to be addressed. A 1,200 W prototype is designed and evaluated to verify the validation of the proposed topology.

• 대한간호학회지
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• 제35권1호
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• pp.186-194
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• 2005

Purpose: The purpose of this study was to investigate the effect of aromatherapy on pain, depression, and feelings of satisfaction in life of arthritis patients. Method: This study used a quasi-experimental design with a non-equivalent control group, pre-and post-test. The sample consisted of 40 patients, enrolled in the Rheumatics Center, Kangnam St. Mary's Hospital, South Korea. The essential oils used were lavender, marjoram, eucalyptus, rosemary, and peppermint blended in proportions of 2:1:2:1:1. They were mixed with a carrier oil composed of almond (45%), apricot(45%), and jojoba oil(10%) and they were diluted to 1.5% after blending. The data were analyzed using an 2-test, Fisher's exact test, t-test and paired t-test. Result: Aromatherapy significantly decreased both the pain score and the depression score of the experimental group compared with the control group. However, aromatherapy didn't increase the feeling of satisfaction in life of the experimental group compared with the control group. Conclusion: The result of this study clearly shows that aromatherapy has major effects on decreasing pain and depression levels. Based on our experiment's findings, we suggest that aromatherapy can be a useful nursing intervention for arthritis patients.

• 대한간호학회지
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• 제41권3호
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• pp.285-293
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• 2011

Purpose: In this study, the effects of laughter therapy on levels of depression, quality of life, resilience and immune responses in breast cancer survivors were examined. Methods: A quasi-experimental nonequivalent control group, pretest-posttest design was used. Participants (n=37) included breast cancer survivors who finished chemotheraphy and radiation therapy: 16 in the experiment group and 21 in the control group. Data were collected from August to November 2009. The experimental group participated in laughter therapy eight times, twice a week for 60 min per session. Questionnaires were used to me-asure pretest and posttest levels of depression, quality of life and resilience. A blood test was used to analyze changes in Total T cell, T helper, T suppressor, Th/Ts ratio, Total B cell, T cell/B cell ratio and NK cell for immune responses. Results: The results showed that laughter therapy was effective in increasing the quality of life and resilience in breast cancer survivors. but depression and immune responses did not differ significantly between the groups. Conclusion: The results of the study indicate that laughter therapy may be an effective nursing intervention to improve quality of life and resilience in breast cancer survivors.

• 대한간호학회지
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• 제43권3호
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• pp.370-378
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• 2013

Purpose: The purpose of this study was to evaluate effects of a maternal sexuality education program for mothers of preschoolers. Methods: A quasi-experimental with non-equivalent control group pretest-posttest design was conducted. The participants were 55 mothers of preschoolers in G city (Experimental group=27, Control group=28). The experimental group received the maternal sexuality education, and the control group received the program after the experiment. Data were collected during October and November 2012 through self-administered questionnaires at two times: prior to the intervention and after the intervention. Data were analyzed using $x^2$-test, Fisher's exact test and t-test. Results: After the intervention, mothers in the experimental group reported significant differences in knowledge of sex (t=3.74, p<.001), attitude toward sex (t=4.31, p<.001), parent-efficacy on child sexuality education (t=11.96, p<.001). compared to mothers in the control group. Conclusion: These results indicate that a sexuality education program for mothers of preschoolers is effective in improving knowledge of sex, attitude toward sex, and parent-efficacy on child sexuality education. Therefore further study should be done with larger and varied participants to confirm the effects of sexuality education programs for mothers of preschoolers.

• 성인간호학회지
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• 제18권1호
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• pp.22-30
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• 2006

Purpose: This study was conducted to identify the effects of the self efficacy promoting program on self efficacy and performance of preventive health behavior of uterine cervical cancer for community nurses. Method: A one group quasi-experimental research with pre and post test design was used. The subjects of the study were consisted of twenty two community nurses in a city in Korea. The whole program was carried out from July to September, 2003. The effect of the program was analyzed at the first week, the fifth week, and the ninth week since the experiment input began. Data were analyzed with repeated ANOVA to determine the effects of program. Results: 1) After the self efficacy promoting program, self efficacy scores were significantly increased compared to those before the program(F=12.029. p=0.005). 2) After the self efficacy promoting program, preventive health behavior scores were significantly increased than those before the program(F=10.431. p=0.006). Conclusions: This 9-week program showed much affirmative effect on the prevention of uterine cervical cancer for community nurses. Thus this program can be recommended to the management of the prevention and early detection of uterine cancer.

• 복식문화연구
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• 제15권5호
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• pp.863-874
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• 2007

The propose of the study was to evaluate impression effects and likeness of clothing styles and make-up types. The stimuli were composed of 4 clothing styles(base, natural, romantic, classic) and 4 make-up types(no make-up, natural, romantic, classic). The subjects were 512 male and female university students in Daejeon and Chungnam province. The study consisted of a survey and quasi- experiment. The experimental materials used for this study were 16 stimuli, 32 hi-polar adjectives, and likeness scale were composed of 7-point Likert type scales. As a result, the clothing styles and make-up types effected on the 4 impressional dimensions: grace, evaluation, salience, and dynamism. The clothing styles effected on grace, salience and dynamism dimension and the effect of dynamism dimension was the most powerful among the dimensions. The make-up types effected on all of the 4 impression dimensions and the effect of salience dimension was the most powerful among the dimensions. The interaction effects existed between the clothing styles and make-up types in salience dimension. The likeness showed significant difference only on the make-up types. The effect of grace dimension was the most powerful among the dimensions. The main reason that make-up effect appears greatly could be analyzed into that clothes color is controlled by white. The results suggest the necessity of succession study about the effect of clothes color.

• 한국자동차공학회논문집
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• 제18권1호
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• pp.58-65
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• 2010

For the improvement of fuel consumption, the study on the use of lightweight material or thinner sheet have been carried out in automotive industry. With the need for the use of thinner sheet, the dent resistance became one of the major concern in th design of exterior panels in automotive industry. Many studies have been carried out for the dent resistance by experiment or quasi-static numerical simulation. In this study, the dent formation behavior is investigated by dynamic finite element analysis using ABAQUS. Dent formation may be affected by many factors such as sheet thickness, material properties, pre-strain, and sheet curvature. The effect of these factors on dent resistance is investigated. From the analysis following three conclusions are derived. First, dent resistance become hard as the sheet curvature radius increases. Second, dynamic dent resistance is mainly affected by bending stress rather than tensile stress. Third, the pre-strain itself do not give any guidance for dynamic dent resistance and dynamic dent resistance have to be decided considering the strain hardening and thickness reduction together. The results are considered to be reliable and useful to improve the dent damage of automotive panels.

• Journal of Korean Biological Nursing Science
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• 제13권2호
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• pp.109-116
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• 2011

Purpose: The purpose of this study was to exam the effects of nursing information about intensive care unit environment on ICU patient's environmental stress, anxiety and comfort. Methods: A non-equivalent control group with non-synchronized quasi-experimental research design was used. Participants were 60 (control 30, experimental 30) patients who admitted at ICU in one hospital in Gangneung. Experimental group was provided with nursing information about intensive care unit environment. To avoid contamination of the experiment, data for the control group were collected prior to the experimental group. Paired t-test, t-test, chi-square test were used to analyze the data using the SPSS WIN 19.0 Program. Results: ICU environmental stress (t=-.089, p=.045) and anxiety (t=-5.65, p<.001) were significantly more reduced than before intervention. Also, comfort (t=-2.98, p=.036) was significantly more improved than before intervention. Conclusion: It confirmed that nursing information on ICU environment is effective in reducing environmental stress, anxiety and improving comfort in ICU patients.

• 지역사회간호학회지
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• 제22권2호
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• pp.100-110
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• 2011

Purpose: The purpose of this study was to evaluate the effects of hand moxa and hand press pellet on blood pressure, blood lipids and blood cell components in elderly women. Methods: This study was conducted as a quasi-experiment with none equivalent control group pre-post test design. The participants were elders who had essential hypertension. There were 18 members in the experimental group and 20 members in the control group. The experimental group received hand moxibustion and hand press pellet 3 times a week for 12 weeks. The results were analyzed using $x^2$ test, t-test, Fisher's exact test and repeated measures ANOVA with the SPSS/WIN program. Results: There were significant decreases in blood pressure in the experimental group compared to the control group. No significant difference was observed in total triglyceride, LDL cholesterol and HDL cholesterol between the two groups. Differences in hemoglobin and hematocrit were not significant either. However, there were significant increases in RBC in the experimental group after the intervention. Conclusion: The results suggest that combined hand therapy contributes to the decrease of blood pressure among the elderly with hypertension. Therefore combined hand therapy is recommended as a complementary nursing intervention strategy for the elderly with essential hypertension.