• The Transactions of The Korean Institute of Electrical Engineers
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• v.57 no.2
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• pp.239-244
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• 2008

In order to improve cost and efficacy of AC PDP with metal discharge electrodes, a new II-type metal electrodes are suggested. The suggested asymmetrical II-type metal electrode is improved in the luminance, power and efficacy than the conventional metal electrode by 7.5%, 6%, and 14%, respectively. The efficacy of the suggested asymmetrical II-type metal electrode is almost the same with the conventional ITO electrode. Moreover, the address time of the II-type metal electrode is shorter than the conventional ITO electrode.

• Journal of Information Technology Services
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• v.9 no.3
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• pp.65-82
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• 2010

Mobile applications market has emerged as new business model. The purpose of this study is to analyze the factors of mobile applications adoption. Based on prior studies of TAM and mobile technology/service, service quality, user experience, OS compatibility, self-efficacy, innovativeness, perceived usefulness, perceived ease of use, and cost were identified as affecting factors of mobile applications adoption. According to the results, service quality is significantly related to the perceived usefulness, and self-efficacy and innovativeness are significantly related to the perceived ease of use. User experience was also found to be related to both the perceived usefulness and the perceived ease of use. In case of OS compatibility, it was found to be significantly related to the perceived ease of use, but not to the perceived usefulness. Both the perceived usefulness and the perceived ease of use were found to be related to the adoption of mobile applications. However, cost was not found to be significant to the relationship between the perceived usefulness/the perceived ease of use and the adoption of mobile applications. This study contributes to provide the base of activation strategies and practical implications for mobile applications.

• Asian Oncology Nursing
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• v.2 no.1
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• pp.50-60
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• 2002

Breast self-exam is easiest, safe and cost effective to be recommended as an important method for early detection of breast cancer. This experimental research with non-equal control design was to develop the efficacy expectation program for breast self-exam based on Bandura's self-efficacy information source. The study objects selected from two local churches in Busan. Twenty from S church were selected as a study group, twenty from D church as a control group. Efficacy expectation promoting program was based on Bandura's efficacy promoting source and was two hour lecture including slide, video tape, demonstration, pamphlet. After this, there were individual interviews with them and consultations through telephone f or verbal persuasion on the weekly basis between the first week and the fifth week. The effect from the experiment were measured on the first week after education and on the fifth week. Data from control group was collected during the period from Jan 11, 2 001 to Feb 15, 2001 and data from study group was collected during the period from Jan 12, 2001 to Feb 16, 2001. Measurement instrument for this study was developed by the author with the advice of specialist in order to measure self-efficacy and breast self-exam practice. Data analysis was done by using SPSS/10.0 PC program $with^2-$ test. t-test and ANCOVA. Proved results for hypothesis were as follows. 1) It was supported that "Study group educated by efficacy expectation promoting program has higher score in change rat e of self-efficacy than control group." (1 week after education F=18.395, p=.000 5 weeks after education F=28.972, p=.000) 2) It was supported that "Study group educated by efficacy expectation promoting program has higher score in change rate of exam practice than control group." (1 week after education F=37.984, p=.000 5 weeks after education F=28.972, p=.000) In conclusion, efficacy expectation promoting program for breast self-exam developed by this study may increase s elf-efficacy and breast self-exam practice.

• Research in Community and Public Health Nursing
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• v.16 no.4
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• pp.404-414
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• 2005

Objectives: The present study proposed to evaluate 1st-month and 3rd-month health status, depression, self-efficacy and medical expenses of a community-based health promotive self-management program for old Koreans. Method: Participants in the CDSMP were selected from elders in a community health center through convenient sampling. The program included a 3-hour session per week for 14 weeks. Outcomes of evaluation in the 1st month and the 3rd month included modified Self-rated Health Status Scale, Center for Epidemiologic Studies Short Depression Scale, Self-Efficacy for Managing Chronic Disease 6-item Scale, and 1-item Medical Expenses Scale. Results: Self-rate health scores increased significantly just after the intervention (16.22), in the 1st month (17.57) and in the 3rd month (19.04) (x2=32.06. p=.000); Depression scores (reversed) also increased significantly just after the intervention (6.04), in the 1st month (7.75) and in the 3rd month (8.39) ( $x^2=29.92$. p=.000); Self-efficacy score increased significantly just after intervention (12.87) but it decreased in the 1st month (12.73) and in the 3rd month (12.04). But all of the three scores were still higher than those before the intervention (8.65) ($x^2=32.42$. p=.000): Medical expense score decreased at the end of the intervention (1.57) but the cost score increased in the 1st month (2.48) and in the 3rd month (2.39) ($x^2$=7.81. p=.050). Conclusion: CDSMP is effective in increasing self-rate health and self-efficacy and in decreasing depression in the Korean elderly. However, no significant effect of the program was observed in decreasing the medical cost of the Korean elderly.

• Journal of Chest Surgery
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• v.53 no.2
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• pp.49-52
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• 2020

Background: Primary spontaneous pneumothorax is commonly treated with chest tube insertion, which requires hospitalization. In this study, we evaluated the efficacy, costs, and benefits of a portable small-bore chest tube (Thoracic Egg; Sumitomo Bakelite Co. Ltd., Tokyo, Japan) compared with a conventional chest tube. Methods: We retrospectively analyzed all primary spontaneous pneumothorax patients who underwent treatment at Gangnam Severance Hospital between August 2014 and May 2018. Results: A total of 279 patients were divided into 2 groups: the conventional group (n=236) and the Thoracic Egg group (n=43). Of the 236 patients in the conventional group, 100 were excluded because they underwent surgery during the study period. The efficacy and cost were compared between the 2 groups. There was no statistically significant difference between the groups regarding recurrence (conventional group, 36 patients [26.5%]; Thoracic Egg group, 15 patients [29.4%]; p=0.287). However, the Egg group had statistically significantly lower mean medical expenses than the conventional group (433,413 Korean won and 522,146 Korean won, respectively; p<0.001). Conclusion: Although portable small-bore chest tubes may not be significantly more efficacious than conventional chest tubes, their use is significantly less expensive. We believe that the Thoracic Egg catheter could be a less costly alternative to conventional chest tube insertion.

• Journal of Information Technology Applications and Management
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• v.20 no.1
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• pp.149-171
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• 2013

The purpose of this study is to investigate factors influencing Chinese consumers' intention to adopt Smartphones. This paper examines Smartphone characteristics factors (situational dependence, diversity and security) and consumer personality characteristics (innovation, self-efficacy and familarity) based on the Technology Acceptance Model. The 320 sets of data are tested against the model using SEM (structural equation model). The research results reveal that diversity and security have significant influences on both perceived usefulness and perceived playfulness. According to the data analysis, self-efficacy affects only perceived easy of use, and familiarity positively affects perceived easy of use, usefulness and playfulness. This study finds that perceived easy of use and perceived usefulness have positive influences on behavioral intention to adopt Smartphones, and situational dependence and innovation directly affect the behavioral intention. The perceived cost has a negative impact on the behavioral intention. Research results are discussed, and limitations of the current study and future research are presented.

• Journal of Korean Academy of Nursing
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• v.34 no.7
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• pp.1315-1325
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• 2004

Purpose: The purpose of this study was to examine the effects of a closed endotracheal suction system(CES) on oxygen saturation, ventilator associated pneumonia(VAP), and nursing efficacy in mechanically ventilated patients. Method: This study was conducted in the intensive care unit of a University Hospital in Gwangju City. Data was collected from July to October, 2003. Seventy mechanically ventilated patients were randomly divided into two groups; 32 for CES and 38 for open endotracheal suction system(OES) protocol. Twenty one nurses were also involved to examine the nurses' attitude of usefulness about CES. Result: $SaO_2$ was significantly different between CES and OES. The incidence of VAP in CES was lower than that of OES. Nursing efficacy was related to time, cost, and usefulness of the suction system. Time of suctioning in CES was shorter than that of OES. CES also contributed significantly to lower the cost of treatment than OES. The usefulness score of CES increased after 6 months of use. Conclusion: CES prevented VAP, was cost effective, and a safe suctioning system. CES can be used with patients with sensitivity to hypoxygenation and with a high risk of VAP.

• Asian Pacific Journal of Cancer Prevention
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• v.17 no.8
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• pp.3753-3757
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• 2016

Background: The aim of this study was to investigate whether electrochemotherapy is a clinically and cost-effective treatment option against skin tumors. Materials and Methods: We performed an analysis of the current literature based on database searches in PubMed/MEDLINE and we included articles till July 2012. Terms used for the search were 'electrochemotherapy', 'skin cancer', 'recurrence', and 'cutaneous and subcutaneous tumors'. Only papers published in English were included. In addition, we performed an analysis of the cost effectiveness of the method. Results: The combination of physics and chemistry is the foundation for electrochemotherapy and its efficacy, independent of the tumor histology. Clinical data showed that ECT is well tolerated and can be used in difficult cases without other available treatment options. The analysis also showed that the treatment is feasible and cost-effective. Conclusions: Electrochemotherapy is a clinically efficient safe and cost-effective treatment and clinicians should not hesitate to use it as alternative therapeutic modality or as palliative treatment.

• Journal of Animal Science and Technology
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• v.53 no.6
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• pp.517-523
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• 2011

The experiment was conducted with 144 broiler chicks from day-old to 5 weeks of age to investigate the efficacy of a water additive in broiler production. The chicks were randomly distributed into four different treatments namely T1 (control), T2 (water additive as per recommendation level), T3 (25% less than recommendation) and T4 (25% more than recommendation). Body weight of control group was higher in 2nd week of age, but at the end of the experiment additive groups showed higher values compare to control (p<0.05). Body weight gain was increased and feed conversion ratio was improved in the additives groups during the finishing and total period, although feed intake was different among the additive groups (p<0.05). When the hematological parameters were evaluated, packed cell volume and total erythrocytes counts were increased in the additive group that received 25% more than recommendation, and hemoglobin in 25% less than recommendation group. Mean cell volume and mean cell hemoglobin of the additive groups showed lower (p<0.05) values compare to the control, but other parameters were not affected. Sales price and profit were significantly higher in the additive groups compare to the control, although total production cost was increased in the additive groups (p<0.05). All levels of water additive increased profit in comparison with the control but 25% less than recommendation level appeared to be most profitable and cost effective. It also suggests that any additive considered for poultry, must undergo trial for determining efficacy as well as its cost effectiveness for application.

• Health Policy and Management
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• v.25 no.2
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• pp.67-70
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• 2015

To establish an appropriate policy for robotic surgery in Korea, the National Evidence-based Collaborating Agency (NECA) and the Korean Society of Health Policy and Administration held a round-table conference (RTC) to gather opinions through a comprehensive discussion of scientific information in gastric cancer. The NECA RTC is a public discussion forum wherein experts from diverse fields and members of the lay public conduct in-depth discussions on a selected social issue in the health and medical field. For this study, representatives from the medical field, patient groups, industry, the press, and policy makers participated in a discussion focused on the medical and scientific evidence for the use of robotic surgery in gastric cancer. According to the RTC results, robotic surgery showed more favorable results in safety and efficacy than open surgery and it is similar to laparoscopy. When the cost-effectiveness of robotic surgery and laparoscopy is compared, robotic surgery costs are higher but there was no difference between the two of them in terms of effectiveness (pain, quality of life, complications, etc.). In order to resolve the high cost issue of the robotic surgery, a proper policy should be implemented to facilitate the development of a cost-effective model of the robotic surgery equipment. The higher cost of robotic surgery require more evidence of its safety and efficacy as well as the cost-effectiveness issues of this method. Discussions on the national insurance coverage of robotic surgery seems to be necessary in the near future.