• Korean Journal of Bronchoesophagology
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• v.3 no.1
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• pp.137-147
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• 1997

The rarity of primary tumor of the trachea, which was recently estimated in a circumscribed population to be 2.7 new cases per million per year, explains the relatively limited experience that has been acquired even by major institutions. Although there may already by a high degree of airway obstruction, tracheal tumors are usually misdiagnosed as bronchial asthma or chronic bronchitis because of its nonspecific symptoms. Surgery is the treatment of choice. Recently, the authors experienced three cases of primary tracheal malignant tumors ; one case of mucoepidermoid carcinoma and two cases of adenoid cystic carcinoma. The authors report on these cases with a review of the literature for give help in differential diagnosis and treatment planing of tracheal tumor.

• KIEAE Journal
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• v.5 no.1
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• pp.35-42
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• 2005

The primary concerns of recreation plan are to provide visitors with quality of recreational experience and to protect of recreation resources. The quality of recreational experience is often defined in terms of social carrying capacity. The carrying capacity is revealed as perceived crowding. In this respects, measuring perceived crowding is useful tool of social carrying capacity determination. This study is to test the structural equation model that includes variables affecting perceived crowding. Through an on-site questionnaire survey, 467 visitors on Naejangsan national park were collected. The results of the study are follows. The encounter level on facility area is higher evaluated as crowding factor than other area in the park. It can be concluded that visitor perceived crowding when facility area situates high density use level rather than other areas expose high density use level. In the path analysis, the input variables(attitude, experience, encounter level) on the structural equation model affect significantly on perceived crowding. Especially, the attitude on the park management polocy is the most affecting factor on perceived crowding.

• Korean Journal of Human Ecology
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• v.17 no.5
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• pp.903-914
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• 2008

The objective of this research was to investigate whether emotional experience and change in depression and stress in the regional children center was affected by participating in the recreation program. For the objective of research, pre-post test control group design was carried on to 21 primary school pupils and middle school students who participated in the regional children center after school. Children's emotional experience, depression and stress that children experienced while they stayed in regional children center were measured. The experimental group showed low negative emotion and high positive emotion after participating the recreation program. It can be concluded that the recreation activity in the regional children center is effective in diminishing the children's depression and stress.

• Journal of Korean Academy of Rural Health Nursing
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• v.17 no.2
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• pp.43-49
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• 2022

Purpose: This study was conducted to explore the telemedicine cooperation experience of nurses working in remote areas. Methods: A focus group interviews were used to collect data. All interviews were recorded and transcribed. Content analysis was used to analyze the data. Results: The three main categories and seven sub-categories of telemedicine cooperation experience that emerged are 1) requirement of education on remote support service, 2) consideration of the recipients of medical support services and the characteristics of the area, and 3) difficulties in conducting telemedicine cooperation. Conclusion: As a result of the study, legal protection should be given priority, and it is necessary to select an area where remote cooperation is essential, to discover subjects, and to reduce the burden of work and division of manpower and duties.

• The Korean Journal of Emergency Medical Services
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• v.16 no.1
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• pp.19-29
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• 2012

Purpose: This study was focused on the training effects of the cardiopulmonary resuscitation(CPR) which is based on the AHA guideline 2010 for lay person. The purpose of this study was to investigate the effectiveness of the CPR training for civilian by checking the performance ability of the subjects before and after the CPR education. Method: This study was a single primary experimental study designed with pre and post test. Study subjects were 55 apartment managers who participated in all test on December 5 and December 11, 2011. The tools of this study were CPR performing evaluation sheet and CPR teaching program(AHA). Data were analysed by descriptive statistics, t-test, repeated ANOVA and Bonferroni with SPSS 18.0 program. Result: The CPR practice performing ability was significantly increased by test. The CPR practice performing ability of the learning experience group had significantly higher score than that of non-experience group. The self-confidence on CPR practice when faced emergency situation was highly increased after practice training. Conclusion: Practical performance evaluation score has improved step by step. The primary and secondary practical evaluation showed a significant difference in all items and practice-oriented education was found to be effective in CPR training.

• The Research Journal of the Costume Culture
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• v.27 no.2
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• pp.169-180
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• 2019

The purpose of this study is to offer basic data on cosmetics by investigating college women's purchasing and use behaviors regarding cosmetics according to their experience with side effects. A questionnaire was administered to 351 college women in the Seoul and Kyoung-in areas. The data were analyzed with SPSS Statistics V22.0 using frequency, ${\chi}^2$-test, and t-test. The results are as follows. First, 72.6% of surveyed women reported experiencing side effects from cosmetics. The largest side effects were acne and boils, and the primary ways of coping with these side effects were discontinuing use and using other products. Second, the group that experienced cosmetics' side effects used brands that were more expensive and eco-friendly than the group without side effects. Third, the group that experienced side effects continued to use the product more than the group without side effects. The primary reason for continued use was efficacy, and the reasons for discontinued use were efficacy and curiosity. Fourth, the side-effects group proactively identified cosmetics ingredients more than the non-side-effects group. Specifically, they checked the major components, the function, and for any hazardous ingredients. Fifth and finally, 98.3% of survey respondents purchased and used functional cosmetics. The group that had experience with side effects used more functional cosmetics than the group without side effects.

• Research in Community and Public Health Nursing
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• v.33 no.2
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• pp.139-152
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• 2022

Purpose: This study aims to describe and understand the meaning and nature of community health practitioners' coping with COVID-19. Methods: In-depth interviews were conducted with 12 community health practitioners from August to October 2021, to describe and understand the nature of their coping with COVID-19. The collected data were examined and described based on Colaizzi's phenomenological method. Results: 16 theme clusters and five categories were derived from the community health practitioners' experience of coping with COVID-19. The categories derived were: a war that began without notice, a variety of correspondence tasks assigned, struggling to fulfill given roles, correspondence tasks becoming more systematic, and a fight that has not yet ended. Conclusion: Community health practitioners handled various response tasks related to COVID-19, and faithfully fulfilled their professional roles while performing the primary task of medical care. Hence, attention is required on issues related to the establishment of the national emergency healthcare system and improvement of professional competence of community health practitioners even after the COVID-19 pandemic is over. Furthermore, it is necessary to make ceaseless efforts to address those issues and, in order to do so, social interest and institutional support are needed.

• Journal of Gastric Cancer
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• v.12 no.4
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• pp.237-242
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• 2012

Purpose: Despite the great advances in laparoscopic techniques, most active general surgeons do not apply laparoscopic surgery in the treatment of duodenal ulcer perforation when facing a real-life emergency. Therefore, our study was designed to evaluate the feasibility of laparoscopic surgery in duodenal ulcer perforation, and provide a step-by-step protocol with tips and recommendations for less experienced surgeons. Materials and Methods: Between March, 2011 and May, 2012, 21 patients presenting with duodenal ulcer perforation underwent laparoscopic primary repair with omentopexy. There were no contraindications to perform laparoscopic surgery, and the choice of primary repair was decided according to the size of the perforation. The procedure for laparoscopic primary repair with omentopexy consisted of peritoneal lavage, primary suture, and omentopexy using a knot pusher. Results: During the operation, no conversion to open surgery or intra-operative events occurred. The median operation time was 45.0 minutes (20~80 minutes). Median day of commencement of a soft diet was day 6 (4~17 days). After surgery, the median hospital stay was 8.0 days (5~27 days). Postoperative complications occurred in one patient, which included a minor leakage. This complication was resolved by conservative management. Conclusions: Although our study was carried out on a small number of patients at a single institution, we conclude that laparoscopic primary repair can be an effective surgical method in the treatment of duodenal ulcer perforation. We believe that the detailed explanation of our procedure will help beginners to perform laparoscopic primary repair more easily.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.33 no.1B
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• pp.8-15
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• 2008

Cognitive radio technology enables to share the spectrum dedicated to primary users. In CR network, it is of primary concern to protect the primary users. Thus, it is required to periodically sense the spectrums occupied by primary users and adapt the communication parameters used by CR users to protect the primary users. However, it is inevitable to experience the hidden node problem due to the primary users, that are not detected by spectrum sensing. To perfectly protect the primary users, it is essential to address the hidden node problem in CR network. In this paper, we propose a new approach to handle the hidden node problem and evaluate the performance of proposed scheme.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.26 no.5
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• pp.231-238
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• 2023

Purpose: This systematic review and meta-analysis aimed to compare endoscopy as primary versus secondary prophylaxis to prevent future bleeding in children with esophageal varices. Methods: A systematic literature search using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses method was conducted using the Scopus, PubMed, and Cochrane databases for relevant studies on the outcome of rebleeding events after endoscopy in primary prophylaxis compared to that in secondary prophylaxis. The following keywords were used: esophageal varices, children, endoscopy, primary prophylaxis and bleeding. The quality of eligible articles was assessed using the Newcastle-Ottawa Scale and statistically analyzed using RevMan 5.4 software. Results: A total of 174 children were included from four eligible articles. All four studies were considered of high-quality based on the Newcastle-Ottawa Quality Assessment Scale. Patients who received primary prophylaxis had 79% lower odds of bleeding than those who received secondary prophylaxis (odds ratio, 0.21; 95% confidence interval [CI], 0.07-0.66; I²=0%, p=0.008). Patients in the primary prophylaxis group underwent fewer endoscopic procedures to eradicate varices than those in the secondary prophylaxis group, with a mean difference of 1.73 (95% CI, 0.91-2.56; I²=62%, p<0.0001). Conclusion: Children with high-risk varices who underwent primary prophylaxis were less likely to experience future bleeding episodes and required fewer endoscopic procedures to eradicate the varices than children who underwent secondary prophylaxis.