• The Korean Journal of Emergency Medical Services
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• v.23 no.3
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• pp.53-65
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• 2019

Purpose: This study aimed to assess the awareness of good Samaritan law and attitude toward basic life support (BLS) of university students. Methods: A 29-item questionnaire survey was conducted among 147 students in A university. The participants were freshmen and sophomores who had received cardiopulmonary resuscitation (CPR) training in middle or high school. Statistical analysis was carried out using SPSS 21.0. Results: The majority (85%) of the participants knew about the good Samaritan clause in the Emergency Medical Service Act, but only about half (58.5%) knew about the Non-rescuer Act. Almost all of the patients said they would administer CPR to patients and showed a positive attitude toward BLS (3.74±0.40). Conclusion: Greater help attitude was exhibited by those who knew the good Samaritan law. These findings suggested that such education may increase their likelihood or helping in emergencies.

• Proceedings of the Korea Concrete Institute Conference
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• 1995.04a
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• pp.355-359
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• 1995

In this paper, the possibility of interferometric shows very good linearity to the strain. Fiber optic sensors have various merits for health monitoring systems. They are very small in diamerter. So, they don't give any disturbance in strength to the structures, Optical fiber sensors are innert to the electro-magnetic field. Therefore, fiber optic sensors give us a good solution to the electro-magnetic field. Therefore, fiber optic sensors give us a good solution to the maintainance systems of the structures, which are exposed to the electric fields, such as bridges, dams and buildings.

• Archives of Plastic Surgery
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• v.35 no.6
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• pp.751-754
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• 2008

Purpose: Delayed rupture of flexor pollicis longus as a sequelae of the plate inserted for distal radius fracture is a very rare. This is the first case reported and published in Korea. Methods: A 48 years old female patient visited hospital, complaining flexor disturbance of interphalangeal joint of left thumb, which suddenly occurred without any external wound. We found that she had received operation of fixing plate for fracture of left distal radius 10 years ago. As operational opinion, we have checked that flexor pollicis longus tendon has been ruptured with oblique ways being stimulated by extended plate to palmar side over long period. Results: Authors performed tenorrhaphy of flexor pollicis longus without tendon graft and presented a successful active flexion of the left thumb interphalangeal joint 1 year after the operation. Conclusion: If the extruded part of the end plate is observed during the operation or follow-up, it is considered to be necessary to get rid of the plate as early as possible after the fracture healing.

• Journal of The Korean Association For Science Education
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• v.36 no.1
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• pp.103-112
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• 2016

The purpose of this study is to investigate secondary science teacher's concepts of good science teaching. To do these, I have developed a questionnaire composed of 32 good teachings on education content, instructional method, instructional environment and atmosphere and assessment categories. 136 secondary science teachers have participated in the questionnaire and were requested to show agreement. Additionally, they were requested to describe the best science teachings that they have experienced. Results are as follows: First, the best science teaching that science teachers thought is a teaching that is in full accord with students' level in education content category, a teaching with an energetic interaction in instructional method category, a teaching in a trustful atmosphere in instructional environment and atmosphere category, a teaching in which students could learn something through a teaching-related assessment in assessment category. Second, secondary science teachers thought that a self-directed learning, a differentiated instruction and a teaching with diverse materials are not important factors in good science teaching. Third, there is a difference between good teaching that secondary science teachers have conceived and good teaching that they have experienced. It shows that science teachers did not precisely understand what good science teaching is. Additionally, I discussed the need of finding a case on good science teachings and a support of an interaction-focused teaching.

• Archives of Plastic Surgery
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• v.38 no.1
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• pp.69-72
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• 2011

Purpose: Myositis ossificans is a benign condition of heterotopic bone formation that still requires more of its pathologic explanation. The lesions are localized predominantly to the high-risk sites of injury, involving flexor muscles of the upper limbs and thigh, but rarely in the head and neck area. Methods: A case of a 44-year-old male patient presented with a palpable hard mass on nasal dorsum. The patient experienced a similar lesion on upper limb few years ago. On computed tomographic image, the lesion presented focal definite increase in opacity compatible to adjacent bone densitiy on nasal dorsum. Results: The lesion was excised under open rhinoplasty incision. The pathologic report revealed focal bone formation and calcification within skeletal muscle. Conclusion: We describe a unique and only case of a myositis ossificans on nasal dorsum which is indifferent from previous concept.

• Korean Medical Education Review
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• v.23 no.2
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• pp.108-117
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• 2021

This study investigated medical students' perceptions of good jobs. We classified medical students' perceptions of good jobs and analyzed the characteristics of each type. The Q methodology was used to extract medical students' subjective thoughts. After extracting statements based on previous studies, 46 Q samples were selected. The P sample consisted of 40 medical students divided evenly by gender and grade. They performed a Q sort of the 46 Q sample questionnaire and the results were analyzed using the QUANL ver. 1.2 program. Very few consensus statements were found in the replies. We divided answers into four types, each of which was clearly distinguished: (1) quality of life-oriented jobs, (2) reward-oriented jobs, (3) service-oriented jobs, and (4) self-realization-oriented jobs. Medical students in type 1 prioritized quality of life equally at work and at home. Medical students in type 2 preferred high-paying jobs. Medical students in type 3 placed importance on serving others. Finally, medical students in type 4 viewed good jobs as involving learning and development. The types of jobs sought were classified according to individual students' values and subjectivity. Medical schools may use the results of this study as a basis for career guidance.

• Journal of Chest Surgery
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• v.27 no.10
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• pp.824-832
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• 1994

Recently we developed the concept of totally implantable electrohydraulic artificial heart. We tested the artificial heart which was drived by external compressive air in the calves. All three calves had pneumonia before surgery, so postoperative course was not only bad but also the results was not good. The first calf died severe pneumonia on 76th day, the second calf died from troublesome bleeding and uncertain allergic like reaction, and the third died because of bleeding. However, the performance of the artificial heart was good, and especially the blood contacting surface showed excellent hemocompatibility. The anatomic fitting was also very good even in the 35 Kg small newborn calf. During treadmill test, the first calf did not well tolerate for 1 minute but by the Full Fill Full Empty control method the artificial heart responsed well to the physiologic needs. In conclusion, the artificial heart had the very good hemocompatible surface, however, the volume of the artificial heart was a little deficient for the calf and the control algorithm needed further development.

• Archives of Craniofacial Surgery
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• v.14 no.2
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• pp.124-128
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• 2013

Cystadenocarcinoma of the salivary gland is a rare malignant tumor. It was first defined as papillary cystadenocarcinoma in the 1991 World Health Organization (WHO) classification, and it was reclassified as cystadenocarcinoma in the 2005 WHO classification. It is a low-grade neoplasm that features slow growing and predominantly cystic growth. We report a case of cystadenocarcinoma occurring on the parotid gland of a 61-year-old female patient presenting palpable mass on her left cheek. Preoperative examination may not reveal typical malignant characteristics. Such as in our case, the differential diagnosis between cystadenocarcinoma and benign lesion is difficult occasionally. We discuss the clinical and histopathological features of cystadenocarcinoma with the review of the literature.

• International Journal of Fuzzy Logic and Intelligent Systems
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• v.10 no.2
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• pp.146-151
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• 2010

This paper proposes a rank-based control method of mutation probability for improving the performances of genetic algorithms (GAs). In order to improve the performances of GAs, GAs should not fall into premature convergence phenomena and should also be able to easily get out of the phenomena when GAs fall into the phenomena without destroying good individuals. For this, it is important to keep diversity of individuals and to keep good individuals. If a method for keeping diversity, however, is not elaborately devised, then good individuals are also destroyed. We should devise a method that keeps diversity of individuals and also keeps good individuals at the same time. To achieve these two objectives, we introduce a rank-based control method of mutation probability in this paper. We set high mutation probabilities to lowly ranked individuals not to fall into premature convergence phenomena by keeping diversity and low mutation probabilities to highly ranked individuals not to destroy good individuals. We experimented our method with typical four function optimization problems in order to measure the performances of our method. It was found from extensive experiments that the proposed rank-based control method could accelerate the GAs considerably.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2001.05a
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• pp.109-113
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• 2001

The purpose of this paper is to propose an analytical method for evaluating user satisfaction of Internet websites using the structural equation model(SEM). This paper is intended to identify critical evaluation factors of user satisfaction for websites to determine criteria for evaluating the websites, and use the criteria to develop a SEM model for quantitatively evaluation of each factors' effects of user satisfaction. The SEM model used 2 variables of usability and good-looks for the evaluation factors of websites user satisfaction and each factors have 4 sub evaluation criteria, 3 portal sites were evaluated to construct the SEM model, and 155 subjects participated the website evaluation using the walk-through and face-to-face survey method. Analysis results showed that the SEM model was statistically significant for all the 3 websites evaluated. Both the usability and good-looks two factors also showed significant effects to user satisfaction of websites and have positive correlation. The user satisfaction was more effected by the usability factor than good-looks, and the simplification and harmonization were the most critical sub-factors of the usability and good-looks.