• 대한기계학회:학술대회논문집
• /
• 대한기계학회 2001년도 춘계학술대회논문집E
• /
• pp.410-415
• /
• 2001

An analytical and numerical examination of second-order fractional-step methods and boundary condition for the incompressible Navier-Stokes equations is presented. In this study, the compatibility condition for pressure Poisson equation and its boundary conditions, stability, and numerical accuracy of canonical fractional-step methods has been investigated. It has been found that satisfaction of compatibility condition depends on tentative velocity and pressure boundary condition, and that the compatible boundary conditions for type D method and approximately compatible boundary conditions for type P method are proper for divergence-free velocity for type D and approximately divergence-free for type P method. Instability of canonical fractional-step methods is induced by approximation of implicit viscous term with explicit terms, and the stability criteria have been founded with simple model problems and numerical experiments of cavity flow and Taylor vortex flow. The numerical accuracy of canonical fractional-step methods with its consistent boundary conditions shows second-order accuracy except $D_{MM}$ condition, which make approximately first-order accuracy due to weak coupling of boundary conditions.

• Archives of Reconstructive Microsurgery
• /
• 제23권2호
• /
• pp.93-96
• /
• 2014

The microscope is a surgical instrument with wide use in plastic surgeries more often than other departments due to the high rate of microscopic surgeries. Unfortunately, because the microscope is used mainly for digital replantations and free flaps, the utilization rate is low compared to the price and usability of the microscope itself. From September 2013 to March 2014, a foreign body which was untraceable with radiology in a patient who desired surgical exploration (one case), and a foreign body which was detected but was smaller than 3 mm (two cases) were removed using the microscope. All foreign bodies, which were fish bone, thin metals, or wooden objects, matching the history of the patients, were completely removed without damage. There were no complications and patient satisfaction was high through follow-up. We have described the microscope as the last and optimal examination tool in removal of micro foreign bodies. A simple change of thought, so that the microscope can be used as a second diagnostic tool will decrease complications by foreign bodies.

• Child Health Nursing Research
• /
• 제11권1호
• /
• pp.90-98
• /
• 2005

Purpose: To provide basic information for developing a nursing program by examining health risk behavior of students rewriting college entrance examinations. Method: Data were gathered using questionnaires from 804 examinees in Seoul and Gyeonggi Province and analyzed with the SAS program using t-test, ANOVA, Scheffe's test, and Pearson correlation coefficients. Results: The mean score for health risk behaviors was 17.70 and the highest score for sub-areas of health risk behavior was drinking alcohol while substance use ranked lowest. There were significantly different scores for health risk behavior according to the following general characteristics; frequency of rewriting college entrance examinations, parents' marital status, level of father's education, grades, satisfaction with rewriting of college entrance examinations, parents' health concerns, need for health education and health status. Each behavior had positive or negative correlation with more than one other behavior. A negative correlation was found between health risk behavior and family support and self-esteem, while positive correlations were found between health risk behavior and general stress, studying stress and anxiety. Conclusion: This study suggest that these results be used to developed a prevention program to decrease health risk behaviors by promoting family support and self esteem and decreasing stress and anxiety.

• ETRI Journal
• /
• 제36권6호
• /
• pp.1051-1061
• /
• 2014

Technological advances made with the development of digital technology and the Internet have led to the emergence and evolution of digital convergence - the integration of media and communications. This, in turn, has led to the creation of the representative broadcast and communication convergence business model (IPTV service). This study examines the consumption patterns and behaviors of IPTV service customers and explores the process of their continuous use of the IPTV service, thereby endeavoring to contribute to the diffusion of digital convergence services. To survey customers' continuous use of the IPTV service, this study first designs a research framework based on an examination of the existing literature on satisfaction, loyalty, and so on. In addition, research is conducted on the switching barrier of the method of consolidating customers' adherence to a given IPTV service by increasing the burden on them, thereby developing a final research model with which to attempt yet another heterogeneous approach. This enables not only an analysis of the causal relationship with antecedent variables but also a measurement of the explanatory contribution of the antecedent variables' sub-variables.

• Journal of Korean Neurosurgical Society
• /
• 제59권1호
• /
• pp.65-68
• /
• 2016

Ochronosis is a musculoskeletal manifestation of alkaptonuria, a rare hereditary metabolic disorder occurs due to the absence of homogentisic acid oxidase and leading to various systemic abnormalities related to deposition of homogentisic acid pigmentation (ochronotic pigmentation). The present case reports the clinical features, radiographic findings, treatments and results of a cervical spondylotic myelopathy woman patient due to the ochronotic arthropathy of the cervical spine. The patient aged 62 years was presented with gait disturbance and hand clumsiness. Physical examination, X-rays, computed tomography and lab results of the urine sample confirmed the presence of ochronosis with the involvement of the cervical spine. The patient underwent a modified cervical laminoplasty due to multi-segment spinal cord compression. The postoperative follow-up showed a good functional outcome with patient satisfaction. The present study concludes the conditions and important diagnostic and surgical aspects of a patient. It is necessary to identify the condition clinically and if cord compression is observed, appropriate surgical interventions needs to be instituted.

• The Journal of Asian Finance, Economics and Business
• /
• 제9권5호
• /
• pp.397-407
• /
• 2022

The informal economy is a large part of the urban economy. The informal economy accounts for about half of Pakistan's GDP. This research examined nine different areas of Rawalpindi's Central Business District's business sector (CBD). A survey of 404 respondents from 16 CBD marketplaces enables a comprehensive examination of who works in the informal and formal economic sectors, how much they earn, their goals, perception of their job, and their degree of similarity to the rest of the working population. Furthermore, the statistics illustrate the pro-cyclical connections between the informal economic sector and the formal economy. The Multinomial Logistic Regression (MLR) technique is used for the analysis. The MLR results indicated the informal economic sector holds positive relation with earning members in a family, business expertise, average business sale, and negative relation with education level, satisfaction with government tax policies, household expense, and average investment in the business. From a resilience standpoint, governance is considered an intentional collective action to preserve a stable system condition. Hence, the current study recommends tax reforms and government institution reorganization to mobilize the informal sector and make effective institutional governance.

• 대한예방한의학회지
• /
• 제18권3호
• /
• pp.1-10
• /
• 2014

Objective : The purpose of this study is to assess the communication and medical interview level of the students in the college of korean traditional medicine using Standardized Patients(SP). Method : 35 students of 5th grade in the college who are doing their clinical practice class participated and conducted medical interview on standardized infertile female patient. SP and professor who observed the interview evaluated the students' communication skill and medical interview level using the assessment sheet composed of 23 questions. Results : 1. Satisfaction of SP was 1.66 of 3. In the communication section, students conducted well in appropriate voice and no inappropriate interruption but they didn't show good practice in considerate physical examination, understandable explanation relatively. 2. The scores that were acquired by students in informing the time required, obtaining agreement at initiating and closing, family history taking, checking mental status and physical examination 2 were low in the medical interview section. 3. There were some differences in the communication and medical interview scores by the students' sex (p<.01), age(p<.05) and medical camp experience(p<.05). But we couldn't find any evidence about the relation between character type and the communication and medical interview scores(p>.62). Conclusion : On the whole, students who participated this study had difficulties in building relationship with patient and conducting medical interview. They need to improve their ability in those fields by appropriate education before their graduation.

• Journal of Acupuncture Research
• /
• 제38권3호
• /
• pp.219-226
• /
• 2021

Background: The objective structured clinical examination (OSCE) is a widely used method to assess the clinical performance of students in clinical practice. Although OSCE has been used for undergraduate students of Korean medicine, this has not been widely reported. Methods: In 2020, the practical course for acupuncture and moxibustion medicine (acupuncture, electroacupuncture, pharmacopuncture, auricular acupuncture, and burning acupuncture) was taught using flipped learning, according to clinical practice guidelines, and assessed by the OSCE. The appropriateness of this model of education and its evaluation using OSCE were evaluated using a 5-point Likert scale, and the results were analyzed. Results: Of the respondents, 67% reported that the OSCE accurately reflected their competency, and 82% reported that online video lectures helped them to improve their clinical skills. The average adequacy score of the model was > 3.7/5, and the average adequacy score of the checklist used in the OSCE was > 4.1/5 for all 5 clinical application skills. The difference in the mean self-efficacy score between students who had taken the OSCE and those students who had not taken the OSCE, was highest in the burning acupuncture group (0.923). Conclusion: This study showed that students' satisfaction with the OSCE was high and flipped learning was an effective education model. In the future, models representing the human body or simulated patients should be used to evaluate students' skills and attitude.

• 한국보건간호학회지
• /
• 제3권1호
• /
• pp.18-37
• /
• 1989

This study was done in order to analyze the factors which influenced the performance level of community health practitioners' task. Interview survey was done during the period from August to October, 1986. Interviewee were 166 CHPs among total of 217 CHPs in Kyonggi province area. Multiple stepwise regression and canonical correlation analysis were used to identify major factors influenced to perform community health practitioners' task. The results of this study were summarized as follows: 1. General characteristics of CHPs 1) Personal characteristics The average age of CHPs was 37.8 years and their marital status was $77.6\%$ of married, educational back-ground was $65.3\%$ of junior college graduation. Their job career was $38.6\%$ of between 1-3 years, $33.3\%$ of between 3-5 years, $22.2\%$ of less than 1 years. Most of CHPs$(62.8\%)$ were fully satisfied with their job, $33.3\%$ were moderately, and $3.8\%$ were not satisfied. 2) Working environmental condition Only $31.7%$ of CHPs were satisfied with their working condition of primary health post, $26.6\%$ were not satisfied. Half of CHPs$(52.5\%)$ replied having good cooperation with health center, $10.1\%$ replied bad. Cooperation with health subcenter was good in $32.9\%$, and bad in $21.9%$. Cooperation with private health institutions was good in $34.2\%$, bad in $21.6%$. 2. Performance level of community health practitioners' task Among a total of 52 contents of their functions medical history taking. physical examination, referral of diagnostic laboratory work-up($(86.4\%)$, health assessment of pregnant women$(82.1\%)$, development of health information system$(79.4\%)$, supervision of health workers $(78.4\%)$, follow-up of family planning acceptors$(77.3\%)$, and follow-up of family planning acceptors' side effects$(77.3\%)$ were actively performed. Diagnosis of pregnancy$(62.1\%)$, sampling of drinking water for quality test$(52.5\%)$, making list of equipment' & supplies $(51.5\%)$, evaluation of primary health post activities $(37.6\%)$, organization of village health workers$(32.4\%)$ and management of village health workers $(30.1\%)$ were poorly performed. 3. Stepwise multiple regression analysis of job function The factors which influenced the performance level of community health practitioners' function were age, marital status, educational level, job career, job satisfaction, satisfaction of working environment of primary health post, cooperation of health center, cooperation of health center, cooperation of private health instiutions in orders. These 9 variables were able to explain job function from $25.7\%$ of program planning to $6.7\%$ of management of common disease. 4. Canonical correlation analysis between the performance of function and general characteristics of CHPs. Cooperation of private health institutions was found to be the factor influencing task performance of community organization, management of primary health post, technical supervision of health personnels. Job satisfaction of CHPs was also found to be the factor influencing task performance of family planning, management of common disease and maintenance of health information system.

• 초등상담연구
• /
• 제9권1호
• /
• pp.41-58
• /
• 2010

본 연구는 우리나라 아동을 대상으로 분노유발 자동적 사고 내용을 직접 조사하고 이를 바탕으로 아동용분노유발 자동적 사고 검사를 개발하는데 목적이 있다. 이를 위해 먼저 분노유발 자동적 사고 조사지(I, II)를 구성하여 아동의 자동적 사고 내용을 조사하였으며 내용과 빈도를 분석한 뒤 성인의 분노사고와 비교하였다. 다음으로 조사한 내용을 바탕으로 90문항의 예비 검사를 구성하고 실시한 후 수집된 자료의 문항의 평균, 표준편차, 첨도와 왜도 등을 고려하여 44문항을 선별하였으며 주성분분석, 배리맥스 회전한 후 최종 40문항 2요인 구조의 분노유발 자동적 사고 검사가 구성되었다. 마지막으로 구성된 분노유발 자동적사고 검사의 신뢰도, 타당도를 알아보았으며 2주 간격으로 검사-재검사를 실시하였고 분노유발 자동적 사고 점수에 따라 저중고 집단으로 나누고 긍정적 사고, 자아존중감, 삶의 만족도, 분노에서 집단 간 변화가 나타나는지를 확인하였다. 연구결과를 요약하면 다음과 같다. 첫째, 아동에게서 나타나는 분노유발 자동적사고의 내용은 부당함(56.4%), 보복 및 소극적 적극적 공격(16.3%), 비난 및 경멸(11.9%), 자존심 손상 및 거부당함(9.2%), 어이없음(3.9%), 포기 및 회피(2.1%), 자기 비하(0.3%) 순으로 나타났다. 둘째, 아동용 분노유발 자동적 사고 검사는 2요인 구조로 1요인(20문항)은 비난 및 보복, 2요인(20문항)은 부당함이었으며 총 40문항의 내적합치도는 .97, 반분신뢰도는 .93, 2주 간격으로 실시된 검사-재검사 신뢰도는 .86이었다. 셋째, 아동용 분노유발 자동적 사고 검사와 관련된 기존의 여러 지표들과의 상관을 구한 결과 준거타당도가 양호한 것으로 나타났다. 또한 변별타당도를 알아보기 위해 분노유발 자동적 사고의 점수에 따라 저중고 집단으로 구분하고 자아존중감, 긍정적 사고, 삶의 만족도, 분노에서 집단간 변화가 있는지 확인한 결과 집단 간 의미있는 차이가 나타났다. 본 연구는 우리나라 초등학생을 대상으로 분노 장면 혹은 분노 유발 상황에서 구체적으로 어떤 종류의 자동적 사고가 나타나는지를 탐색적으로 연구하고 이를 바탕으로 한국형 아동용 분노유발 자동적 사고 검사를 구성하고 타당도를 확인한 것에 의의가 있다고 생각한다.