• Childhood Kidney Diseases
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• v.1 no.1
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• pp.60-66
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• 1997

Even though the urinary stones are rare in children, careful observation and monitoring are necessary because the incidence has been increasing. This study is aimed to document the characteristics of urinary stones in children including the symptoms, diagnosis, with or without urinary tract infection, other urinary tract anomaly and treatment. 45 patients under the age of 15 years with urinary stones hospitalized during Jan. 1986 to Jun. 1996 at Severance Hospital were reviewed retrospectively. Patients' mean age was 6.5 years and sex ratio (male : female) was 5.4:1. The most common symptom was gross hematuria. Stones accompanied with urinary tract infection was 46.7%, and stones associated with urinary tract anomaly was 35.6%. Extracorporeal shock wave lithotripsy, percutaneous nephrolithotorny, hydration and diuretics were the treatment modality used. Urinary stone were found to be a significant cause of urinary tract obstruction in children, requiring prompt diagnosis and treatment. Although KUB, IVP, and ultrasonography were commonly used to make the diagnosis, many cases were detected only by ultrasonographic study.

• Journal of The Korean Association For Science Education
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• v.32 no.5
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• pp.991-1006
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• 2012

The purpose of this research is to find factors that affect high school science teachers' class compositions. In this research, we developed the class composing factor analysis framework and we observed teachers' class to figure out the class composing factors. The results from this research were as follows: First, the class composing factor was classified with 'positive motive factor' and 'negative motive factor'. It is the positive motive factor that teachers' voluntary motives operate to teacher for class compositions. It is the negative motive factor that outer demands operate to teacher for class compositions. Second, both positive and negative motive factors were shown in all the steps, which included preparing a class, progressing a class, and after a class. Also, according to the circumstances, each factor changed. Minimizing and overcoming negative motive factors will lead to positive interaction between the teacher and students. It will also increase a teachers' achievements in class and maximize the effectiveness of class. Therefore, it is expected that this will be a great help for teachers to enhance their teaching professionalism.

• Childhood Kidney Diseases
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• v.12 no.2
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• pp.194-201
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• 2008

Purpose : Voiding cystourethrography(VCUG) is required to detect vesicoureteral reflux(VUR), which may manifest as urinary tract infection(UTI) in children. It is well known that VCUG can cause UTI(post-VCUG UTI). In this study, risk factors for post-VCUG UTI and the preventive effect of antibiotics against this complication of VCUG were explored. Methods : Medical records of 284 patients who underwent VCUG at our hospital in 2007 were reviewed retrospectively. The incidence of post-VCUG UTI and risk factors for post-VCUG UTI, and the impact of antibiotic use on prevention of post-VCUG UTI were evaluated. According to antibiotics usage, we divided the enrolled patients into 4 groups of noantibiotics group, prophylactic antibiotics group(prophylactic antibiotics having been used before), antibiotics-for-VCUG group(antibiotics added for VCUG) and antibiotics-for-treatment group(treatment dose of antibiotics). Results : Seven of 284 children(2.5%) developed UTI after they underwent VCUG. Highgrade(grade$\geq$III) VUR was the only statistically significant risk factor(odds ratio[OR] 6.266, P=0.026) for post-VCUG UTI, while sex, age, and other anomalies of urinary system were not significant. Five post-VCUG UTI cases belonged to prophylactic antibiotics group. Antibiotics use (three groups using antibiotics vs. no-antibiotics group) or addition of antibiotics for VCUG (antibiotics-for-VCUG vs. other groups) did not have any effect on prevention of post-VCUG UTI. Conclusion : The risk factor for post-VCUG UTI was high-grade VUR. Antibiotics use did not prevent post-VCUG UTI in this study.

• 한국벤처창업학회:학술대회논문집
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• 2018.11a
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• pp.35-37
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• 2018

본 연구는 민간 직업훈련 기관의 훈련생 모집에 영향을 미치는 요인을 분석하기 위해 훈련 등록한 대상들에게 설문조사를 실시하였다. 이를 위해 접근성 요인(교통편, 주차장 등), 시설 요인(교실 크기, 시설 환경 등), 상담자 역량 요인(응대 태도, 서비스 지식, 상담 Skill 등), 비용적 요인(훈련비, 훈련비 지원 유무 등), 교육 요인(교육 편성 내용, 강사진 등)으로 나누고 각 요인들이 훈련 등록에 어떠한 영향을 미치는지 분석 하였다.

• Proceedings of the ESK Conference
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• 1998.04a
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• pp.137-142
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• 1998

본 조사는 1996년 9월무터 12월에 걸쳐 마산.창원 공단지역 사업장에서 근무하는 정상근무 근로자 1,640명과 교대근무 근로자 1,360명을 대상으로 General Health Questionnaire(GHQ-30)을 이용하여 정신의 학적 특징 및 점수 분포를 검토하였다. 전체 문항에 대한 상관관계와 Cronbach .alpha. 계수에 의한 내적 일관성(Internal consistency)은 정상근무, 교대근무 모두 만족할 만한 수준이였고, Varimax 회전에 의한 주요인 분석으로부터 추출된 GHQ-30의 정신의학적 특징은 정상근무가 5개, 교대근무는 6개 요인이 추출되 었다. 정상근무에서 추출된 5개의 요인은 '심리적 요인', '신체적 요인', '사회적 요인', '스트레스 요인', '자신감 요인'이였고, 교대근무는 상기의 5개 요인 외의 '직무 요인'이 추출되었다. 상기의 공통된 5개 요인 구조는 대체로 비슷하였다. GHQ-30의 점수 분포는 정상.교대근무보다 왼쪽으로 치우치는 경향을 보였다. (Skewness: 정상근무=0.42, 교대근무=0.27). 인구동태학적 요인에 따른 감정적 혼란의 정도는 교대근무가 정상근무보다 높았으며, 정상.교대근무 모두 연령별, 자녀의 수, 결혼 유무에 대해서 유의한 차이를 보였으며, 각각 20대이하, 무자녀, 이혼.미혼의 집단에 있어서감정적 혼란이 큰 것으로 나타났다.

• Childhood Kidney Diseases
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• v.5 no.1
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• pp.30-35
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• 2001

Purpose : To evaluate tile frequency of urinary tract anomalies in male neonates less than 3 months old who presented with urinary tract infection(UTI) and to evaluate a appropriate imaging approach after first UTI. Materials and methods : During a period of 5 years from March 1994 to February 1999, 65 male infants less than 3months old(range: 4-92 days, mean: 43 days) with UTI were evaluated. Ultrasound(US) and Voiding cystourethrogram(VCUG) were done in 60 patients. Due to refusal and technological problem, 5 patients were missed. 99mTc-dimercaptosuccinic acid renal scan (99mTc-DMSA renal scan) was recommended to most patients but performed in 40 patients. Renal scan was performed at least 3 months later after urinary tract infection. Results : Urinary tract anomalies were found in 26 of 65 infants. Twenty-six had vesicoureteral reflux(VUR), two had both VUR and double ureter, two had both U and posterior urethral valve. In patients with VUR, eight had renal scar or renal atrophies. In case of renal scar or atrophy, grades of VUR were III or above. Conclusion : We suggest that US and VCUG should be routinely performed in infants(<3months)with first UTI. 99mTc-DMSA renal scan should be performed only when renal parenchymal damage was observed in US and VUR grade III or above in VCUG. (J. Korean Soc Pediatr Nephrol 5 : 30- 5, 2001)

• The Journal of Korean Association of Computer Education
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• v.16 no.2
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• pp.19-27
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• 2013

Internet addiction, one of adverse effects of the informatization, has become a very serious social problem. The purpose of this study is to seek solutions for the adverse effects of the informatization by analyzing the causal factors of internet addiction to maximize prevention of the internet addiction for college students. The three causal factors of the internet addiction: personal factors, familial factors, and social environmental factors are defined as the second confirmatory factors, and the first confirmatory factors for the each second confirmatory factor are reviewed for influential factors of internet addiction. The study concluded that the personal factors are the most influential factors of internet addiction for college students; furthermore, self-control and self-efficacy are key variables of the personal factors. Therefore, it can be effective ways to prevent internet addiction if countermeasures on self-control and self-efficacy of the personal factors are presented.

• Journal of the Korean School Mathematics Society
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• v.15 no.3
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• pp.487-509
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• 2012

This study, in order to contribute to improvement of the affective domain for mathematics which is one of the largest issues of mathematics education, examined the background variables influencing mathematics anxiety of middle/high school students. As the result, the middle school students showed a greater level of anxiety than the high school students did, and especially the anxiety level according to environment factor and learning strategy factor was high. Also, male students showed overall a greater mathematics anxiety than female students did, and both group of students showed a higher anxiety level according to environment factor and learning strategy factor. Besides, the greater the time spent on private education was, the higher the mathematics anxiety level, and in test/performance factor, the group with low self-initiated learning time showed a higher level of mathematics anxiety compared to other two groups. Among four subfactors of mathematics anxiety test, the students overall scored lowest in anxiety for test/performance factor, and highest in environment factor.

• Journal of Veterinary Clinics
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• v.27 no.3
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• pp.295-298
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• 2010

A five-year-old, castrated male, Pung-san dog was referred to Konkuk University Veterinary Teaching Hospital with trauma and persistent hemorrhage in the inguinal region. The dog had a history of being wounded by a wild boar at 5 days prior to presentation. Rupture of the membranous urethra and urethrocutaneous fistula were demonstrated by the retrograde positive contrast urethrography. A urinary catheter was placed to identify the urethra and urethrocutaneous fistula. The necrotic tissues and damaged tissues by urine leakage around urethrocutaneous fistula were debrided. An urethral anastomosis over an indwelling catheter was performed. The dog maintained normal urination without other complications including dysuria and hematouria at the follow-up evaluation after 1 month postoperatively. A retrograde urethrogram repeated at 2 months after surgery showed no urethral stricture.

• Culinary science and hospitality research
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• v.21 no.4
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• pp.325-338
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• 2015

The purpose of this study is to analyze service factors, particularly physical environment factor, that influence consumer satisfaction, and to identify how coffee consumption behavior is affected in relation to an increase in consumer satisfaction. For the study, factor and regression analyses were employed. As a result, five factors were derived relating to physical environment, while four factors impacted on consumer satisfaction. In addition, the three factors extracted from consumption behavior were influenced by consumer satisfaction. Additional discussion and implications for future study were provided.