• 한국동물학회:학술대회논문집
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• 한국동물학회 1998년도 한국생물과학협회 학술발표대회
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• pp.152.1-152
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• 1998

No Abstract, See Full Text

• 한국콘텐츠학회논문지
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• 제11권1호
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• pp.350-356
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• 2011

본 연구의 목적은 전자적 임상시험 데이터 관리를 위한 설계 시 시간적 요인에 주목하여 시스템의 효율성을 검증해 보고자 함이다. 임상시험 데이터 관리에 대한 관심이 커지고 있고 시스템 도입이 활발한 데 반해, 실제 효율성 측정에 관한 실증연구는 많지 않다. 특히 국내의 경우 임상시험 데이터 관리를 위한 전산화 도입률 조차 낮은 실정이다. 본 연구는 전자적 임상시험 데이터 관리에 대한 중요성 인식 확산을 위하여 전자적 시스템의 효과에 대한 실증연구를 시도하였으며, 시간효율성 측정지표를 활용하여 다기관 임상시험 사례의 자료를 분석하였다. 연구결과로서 전자적 시스템으로의 전환이 임상시험 전체 프로세스에 제공할 수 있는 시간 측면에서의 효율성을 검증하였으며 전자적 임상시험 데이터 관리 시스템의 활용 효과를 분석하기 위한 국내 첫 실증연구의 시도라는 의미가 있다. 나아가 전략적 데이터 관리 수립 및 임상단계 별 비교연구 등 향후 다양한 비교 연구들의 초석이 될 것이다.

• 한국간호교육학회지
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• 제16권1호
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• pp.5-13
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• 2010

Purpose: This study investigated the effects of Web-Contents Learning by nursing students on nursing knowledge, self-directed learning and clinical competence. Method: This study was a quasi-experimental, nonequivalent control group pre-post test. For the study, 146 nursing students were selected from three colleges. Seventy-six were experimental subjects and 70 were control subjects. The subjects in the experimental group studied Web-Contents along with four weeks of clinical practice. Data were collected by structured questionnaires and analyzed using the SPSS program. Result: The experimental group showed significant increase in their nursing knowledge (t=-3.866, p=.001). However, no significant differences were observed between the two groups in self-directed learning (t=-.759, p=.449) and clinical competence (F=.891, p=.347). Conclusion: From our investigation, the present study suggests some implication for learner-related variables. Elaboration of experimental design to validate the effects of Web-Contents Learning should be carried out.

• 대한치과의사협회지
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• 제48권8호
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• pp.576-586
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• 2010

Recent advancement in molocular biology enhanced further understanding of the carcinogenesis of oral cancer and its relation with various genetic backgrounds. Familial risk factors includes similar habits of the family and polymorphic variations of the genes. Recently, human papilloma virus has been suggested to be linked with oral cancer progression. Enhancement of understanding of the damage or alteration in molecular pathway in various cellular response of oral cancer progression would lead the targeted therapy or precise early diagnosis of the oral cancer.

• 대한간호학회지
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• 제34권5호
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• pp.838-848
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• 2004

Purpose: This study was to describe nurses' research activities, perceptions and performances of evidence-based practice and barriers to the use of research evidence in nursing practice in Korea. Method: A cross-sectional survey design was used. A questionnaire, except for Barriers Scale, was developed for the study. Data was collected from a convenient sample of 437 registered nurses working at research and education oriented university hospitals. Result: Nurses' research-related activities were relatively low compared to previous studies. Also perceptions and performances of evidence based nursing practice were low. Preferred informational resources for clinical decision making were identified as ward manuals/clinical guidelines, manager/senior nurses, and literature/research. The major barriers to research utilization were a lack of implication for practice along with inadequate facilitation to implement research evidence and difficulty understanding research written in English. Priorities of barriers factor were Administrator, Communication, Adopter, and Research. Conclusion: The findings provide directions for future training, education, and managerial policy to achieve successful evidence based nursing practice.

• 한국동물학회:학술대회논문집
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• 한국동물학회 1996년도 한국생물과학협회 국제학술대회
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• pp.151.2-151
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• 1996

No Abstract, See Full Text

• The Journal of Advanced Prosthodontics
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• 제2권2호
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• pp.50-53
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• 2010

BACKGROUND. In order to restore severely attrited teeth properly, surgical intervention in the form of a crown-lengthening procedure may be required. And also, proper diagnosis and treatment sequencing is critical to obtain a successful results. Adequate diagnostic wax-up ensures good esthetics and healthy periodontal tissue. CASE DESCRIPTION. This clinical case report describes a diagnostically based protocol for restoration on mandibular anterior teeth with crown lengthening procedure and the treatment of partially edentulous mandible combined with an edentulous maxilla. In addition, the effort to prevent the combination syndrome was described. CLINICAL IMPLICATION. An interdisciplinary diagnosis and examination through visualization of the desired results ensure conservative and more predictable outcome.

• BMB Reports
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• 제55권1호
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• pp.3-10
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• 2022

Extracellular vesicles (EVs) released from different types of kidney cells under physiologic conditions contribute to homeostasis maintenance, immune-modulation, and cell-to-cell communications. EVs can also negatively affect the progression of renal diseases through their pro-inflammatory, pro-fibrotic, and tumorigenic potential. Inhibiting EVs by blocking their production, release, and uptake has been suggested as a potential therapeutic mechanism based on the significant implication of exosomes in various renal diseases. On the other hand, stem cell-derived EVs can ameliorate tissue injury and mediate tissue repair by ameliorating apoptosis, inflammation, and fibrosis while promoting angiogenesis and tubular cell proliferation. Recent advancement in biomedical engineering technique has made it feasible to modulate the composition of exosomes with diverse biologic functions, making EV one of the most popular drug delivery tools. The objective of this review was to provide updates of recent clinical and experimental findings on the therapeutic potential of EVs in renal diseases and discuss the clinical applicability of EVs in various renal diseases.

• Journal of Chest Surgery
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• 제37권3호
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• pp.252-260
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• 2004

다량의 흉수는 수술 전 방사선 검사로 쉽게 평가할 수 있지만, 미량의 흉수나 흉막의 미세전이를 평가하는 것은 매우 어렵다. 본 연구는 원발성 폐암 환자에서 미량의 흉수나 흉막의 미세전이 여부가 예후에 미치는 영향을 연구하기 위해 흉강 세척액 세포검사를 시행해서 그 결과를 분석하였다. 1998년 11월부터 2002년 8월까지 서울아산병원 흉부외과에서 원발성 폐암으로 폐절제술을 시행받은 환자 중 수술 전 방사선 검사에서 흉수가 없고, 수술 소견에서 종양의 흉벽 침범 소견이 없고, 광범위한 흉막 유착 소견이 없었던 315명을 대상으로 삼아 전향적으로 연구하였다. 흉강 세척액은 개흉 직후와 수술이 끝나고 흉강을 봉합하기 직전에 생리식염수 100 mL로 흥강을 세척해서 검체를 얻어 세포조직학적 검사를 시행하였다. 대상 환자는 남자 237명, 여자 78명이며, 평균 연령은 60.8$\pm$9.7세(27∼82세)였다. 315명의 흉강 세척액 세포검사에서 악성세포가 발견된 경우는 총 28예(8.9%)였으며, 20예(6.3%)는 개흉 직후 시행한 흉강 세척액 세포검사에서 악성세포가 발견되었다. 흉강 세척액 세포검사에서 악성세포의 양성률은 조직학적 세포형, 림프절 전이, 장측 흉막 침범 여부 등과 통계학적으로 유의한 차이가 없었다. Stage I 및 II 환자 중 흉강 세척액 세포검사에서 악성세포가 음성인 군은 1년 생존율이 93.9%인 반면 양성인 군은 85.7%로 통계학적으로 유의한 차이가 없었다. 재발은 31예(13.6%)에서 있었고, 2-year recurrence-free rate는 흉강 세척액 세포검사에서 악성세포가 음성인 군(90.1%)과 양성인 군(87.5%) 사이에 유의한 차이를 보이지 않았다. 대상 환자들의 중간 추적기간은 16.4개월(1∼48개월)였다. 원발성 폐암으로 폐절제술을 받은 환자에서 시행한 흉강 세척액 세포검사에서 악성세포의 존재 유무는 수술 후 생존율이나 재발률에 있어 통계학적으로 유의한 영향을 미치지 않았지만 대상 환자들의 평균 추적기간이 짧은 점 등을 고려할 때 향후 지속적인 연구가 필요하다고 생각한다.

• Clinical and Experimental Pediatrics
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• 제51권10호
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• pp.1031-1037
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• 2008

Macrolide antimicrobial agents including erythromycin, roxithromycin, clarithromycin, and azithromycin are commonly used in the treatment of respiratory tract infections in children. Newer macrolides that have structural modifications of older drug erythromycin show improved change in the spectrum of activity, dosing, and administration. However, recent studies reported that increasing use of macrolide antibiotics is the main force driving the development of macrolide resistance in streptococci. In particular, azithromycin use is more likely to select for macrolide resistance with Streptococcus pneumoniae than is clarithromycin use, a possible reflection of its much longer half life. Recently, erythromycin resistance rates of S. pneumoniae and Streptococcus pyogenes are rapidly increasing in Korea. Two main mechanisms of acquired macrolide resistance have been described, altered binding site on the bacterial ribosome encoded by the ermB gene and active macrolide efflux pump encoded by the mef gene. Relationship between the susceptibility of S. pneumoniae and the response to macrolides has been shown in studies of acute otitis media, but less clear in cases of pneumonia. This article reviews the spectrum of activity, pharmacokinetic properties, mechanisms of action and resistance, and clinical implication of resistance on the treatment of respiratory tract infections in children.