• 제목/요약/키워드: Operation Strategies

검색결과 936건 처리시간 0.029초

수질 취약지역 및 관말에서 플러싱 적용 먹는물 수질 개선 효과 (Effects of flushing techniques on water quality at extremity with low chlorine residuals in drinking water distribution systems)

  • 고경훈;권지향;김인자;임우혁
    • 상하수도학회지
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    • 제25권3호
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    • pp.313-324
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    • 2011
  • Several complaints from consumers on red or turbid waters were often filed at the same places although various efforts were made to improve water quality in the drinking water plant. The red water problems were occurred due to corrosion of main water pipe, especially at extremity. The low concentrations of chlorine indicating poor water quality were detected at the problematic location. To solve the poor water quality at the extremity, flushing techniques, i.e., conventional flushing, unidirectional flushing, and continuous flushing, were recently practiced. In this study, effects of conventional flushing on water qualities were examined by comparing turbidity and residual chlorine before and after flushing. In addition, more detailed analyses on water qualities at the tap water were conducted to learn a reduction pattern during flushing. Five items from geographic information system of water distribution were used to obtain a relationship with water quality, washing duration or amounts of washing water. The flushing was effective to meet the National Drinking Water Quality Standard with simple and relatively short time operation. The key operational parameter in flushing was amounts of washing water which should be estimated based on water quality of the consumer's tap water. The positive relationship between the residual chlorine and pipe length implied that detention time in the pipeline was the main cause of the complaints. More experiments on effectiveness of flushing are needed to determine reasonable strategies of flushing.

식도에 발생한 위장관 간질종양 (Gastrointestinal Stromal tumor of the Esophagus)

  • 박영우;신화균;임재웅;고은석;김희경;원용순
    • Journal of Chest Surgery
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    • 제39권7호
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    • pp.565-568
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    • 2006
  • 46세 남자환자가 건강검진에서 발견된 식도 종양을 수술받기 위해 내원하였다. 수술 전 검사 및 수술소견에서 평활근종과 유사한 소견을 보여 적출술을 시행하였으나 면역조직화학적 염색에서 위장관 간질종양으로 확인되었다. 식도에 발생하는 위장관 간질종양은 매우 드문 질환이다. 평활근종과는 다른 병리생물학적 소견과 임상양상을 보이므로 다른 치료방법 및 경과관찰이 필요하다. 환자는 재발 및 전이에 대한 지속적인 추적관찰 중이다.

병원간호사의 조직냉소주의 영향요인 및 조직효과성에 대한 매개효과 검증 (The Determinants of Organizational Cynicism of Hospital Nurses and Its Mediating Effect on the Organizational Effectiveness)

  • 이주현;정애숙;서영준
    • 한국콘텐츠학회논문지
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    • 제16권7호
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    • pp.575-586
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    • 2016
  • 본 연구는 병원에서 간호사의 조직 냉소주의에 대한 영향요인을 조사하고 효과적인 조직 관리 및 조직의 효율성에 기여하는 요인을 알아보기 위해 수행되었다. 연구에 사용된 데이터는 2005년 일개 병원에 근무하는 간호사 전체 320명을 대상으로 자료를 수입하여 분석에 부적합한 설문지를 제외하고 최종 295개 설문지를 SPSS WIN 21.0 버전을 활용하여 분석 하였다. 연구결과, 리더십, 과업 상호 의존성, 직무 스트레스, 긍정적 및 부정적인 정서는 병원 간호사의 조직 냉소주의에 통계적으로 유의한 영향을 미치는 것으로 나타났다. 또한, 조직 냉소주의는 직무 만족과 조직몰입에 유의한 매개 효과가 있었고, 조직의 분위기는 직무 만족과 조직 몰입에 유의한 간접 효과를 보여 주었다. 결론적으로 병원경영진과 간호관리자는 조직 냉소주의를 감소시키기 위해서 즐거운 조직 분위기 조성, 적절한 지원, 공정한 보상 및 우호적인 조직 문화 조성, 원활한 의사소통과 피드백, 직원들간의 신뢰, 정보공유, 부서 내 및 부서간의 협력과 같은 전략을 수용할 필요가 있다.

Difference in Spinal Fusion Process in Osteopenic and Nonosteopenic Living Rat Models Using Serial Microcomputed Tomography

  • Park, Sung Bae;Yang, Hee-Jin;Kim, Chi Heon;Chung, Chun Kee
    • Journal of Korean Neurosurgical Society
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    • 제60권3호
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    • pp.348-354
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    • 2017
  • Objective : To identify and investigate differences in spinal fusion between the normal and osteopenic spine in a rat model. Methods : Female Sprague Dawley rats underwent either an ovariectomy (OVX) or sham operation and were randomized into two groups: non-OVX group and OVX group. Eight weeks after OVX, unilateral lumbar spinal fusion was performed using autologous iliac bone. Bone density (BD) was measured 2 days and 8 weeks after fusion surgery. Microcomputed tomography was used to evaluate the process of bone fusion every two weeks for 8 weeks after fusion surgery. The fusion rate, fusion process, and bone volume parameters of fusion bed were compared between the two groups. Results : BD was significantly higher in the non-OVX group than in the OVX group 2 days and 8 weeks after fusion surgery. The fusion rate in the non-OVX group was higher than that in the OVX group 8 weeks after surgery (p=0.044). The bony connection of bone fragments with transverse processes and bone formation between transverse processes in non-OVX group were significantly superior to those of OVX group from 6 weeks after fusion surgery. The compactness and bone maturation of fusion bed in non-OVX were prominent compared with the non-OVX group. Conclusion : The fusion rate in OVX group was inferior to non-OVX group at late stage after fusion surgery. Bone maturation of fusion bed in the OVX group was inferior compared with the non-OVX group. Fusion enhancement strategies at early stage may be needed to patients with osteoporosis who need spine fusion surgery.

수술실의 간호오류 및 과오 예방을 위한 E-learning 실무교육 프로그램의 개발 및 평가 (Development of an E-learning Education Program for Preventing Nursing Errors and Adverse Events of Operating Room Nurses)

  • 김정순;김명수;황선경
    • 성인간호학회지
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    • 제17권5호
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    • pp.697-708
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    • 2005
  • Purpose: This study was to develop, implement, and evaluate an e-learning education program for improving practical knowledge and preventing nursing errors and adverse events of nurses working in the operating room (OR). Method: The e-learning program was developed and evaluated according to the following processes: 1) preparation phase 2) implementation phase 3) evaluation phase. In evaluation phase, the effectiveness was analyzed based on the Kirkpatrick's model. Results: The e-learning program consisted of OR basic nursing skills and techniques and nursing activities' manual based on the categories of nursing errors: surgical operation preparation, nursing skills and techniques, environment management, patient safety and comfort, and patient monitoring. The program was provided through on-line, http://cafe.daum.net/pnuhorn, for 4 weeks. The mean score(percent) of participants' satisfaction was $21.24{\pm}1.71$(68.2%). Their total knowledge level was significantly improved(Z=-3.00, p=.003) and specifically in the category of environment management(Z=-3.77, p<.001) and patient monitoring(Z=-2.46, p=.014). The occurrence of nursing errors or adverse events was a little decreased, but not statistically significant(Z=-3.10, p=.756). Conclusion: E-learning for nurses is one way of effective and efficient teaching-learning strategies. For better e-learning, it is important to develop the vital content of the education and objective measures for detecting nursing errors and adverse events.

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환자-간호사간의 치유적 관계형성 경험과 과정 (Experiences and Process of Patients' Healing Relation with Nurses)

  • 강병옥;지성애
    • 간호행정학회지
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    • 제1권1호
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    • pp.112-131
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    • 1995
  • The purpose of this study is to know experiences and process of patients' healing relation with nurses. This study had been conducted from July to September in 1994. The subjects were 7 patients who had hospitalized within 10 days at general surgery unit in C university hospital. The data were collected through in-depth interview and observation on the basis of Grounded Theory. In-depth interview were performed 3-6 times for each patient and taken 10-15 minutes at once. The result were as follows : (1) The main concepts are worry to operation, worry to hospital environment, worry to their children, worry to nurses, general appraisal, appraisal of appearance, appraisal of attitude, appraisal of nurses' response, appraisal of nurses' help, interest to patients, appraisal of explanation, appraisal of direct nursing, appraisal of nursing role, appraisal of nursing fairness, empathy, feeling of jung, discontent exposure, content, rapport. (Jung is a unique feeling that appeared in only korean culture) (2) The main categories are worry, general appraisal, concrete appraisal, empathy, and rapport. (3) These process is worry, appraisal, empathy, and rapport in the order. (4) The core category is the need of relation formation. The hospitalized patients have had need of relation formation with nurses. In order to satisfy this need, patients in the early of hospitalization had the worries to nurses, hospital environment, their children and themselves. The more patients have information about themselves, the more they have worries. In addition to, patients have general appraisal through the first impression or feeling to nurses. A time goes by, general appraisal has changed concrete appraisal. High educated group (above bachelor degree) have expressed concretely and variousely their needs. The patients who have empathy to nurses are content with nurses and form rapport to be shown frankly thier discontents. Therefore, patients' healing relation formation is the process of being filled up the need of relation formaton with Nurses. As mentioned above, researcher suggests that nurses need study nursing strategies to make earlier the last phase of the healing relation formation, rapport.

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자기주도학습을 위한 이러닝 콘텐츠 검색 지원 시스템 설계 (E-Learning Content Search Support System Design for Self-Directed Learning)

  • 용성중;김유두;문일영
    • 실천공학교육논문지
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    • 제12권1호
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    • pp.73-83
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    • 2020
  • 최근 공교육, 사교육, 평생교육, 직업훈련교육 분야에서 지식전달 위주의 주입식 교육방식에서 학습자들이 능동적으로 지식에 대처할 수 있는 자기주도학습에 대해 중요성이 대두되고 있으며, 이는 사회변화에 따라 요구되는 인재상으로 스스로 자아개념, 자신감, 창의성을 발견하고 계발시키는 학습 방법으로 더욱 중요해지고 있다. 하지만 자기주도적 학습에 대한 개념 및 전략 등 다양한 이론적 지식들이 존재하고 있지만, 실제 자기주도학습 운영계획 또는 학습 분야에 따라 학습자가 원하는 학문 분야의 콘텐츠를 손쉽게 제공받는 시스템에 대해 부족한 상황이다. 따라서 본 논문에서는 학습자가 자기주도적 학습을 위한 다양한 학습 콘텐츠를 제공받기 위해 정보를 획득하고 의미를 정제하여 범주화 할 수 있는 텍스트 마이닝 기법을 활용하여 온라인상에서 학습자가 습득하려고 하는 학문 분야의 다양한 콘텐츠를 제공하는 시스템을 설계하고 활용하는 방안에 대한 연구를 수행하였다.

일본 전통마을의 유지.관리방법 분석 -쯔마고마을과 시라카와마을을 사례로- (An Analysis of Management Methods for Traditional Village in Japan -The Case of Tumago Village and Shiragawa Village-)

  • 강동진
    • 한국조경학회지
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    • 제28권4호
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    • pp.91-104
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    • 2000
  • The traditional village, which is subject for this paper, can be defined as a community having unique combinations of natural, cultural, and social characteristics of that nation, which reflects settlement environments during hundreds of years. Now, in spite of tis potential power of traditional village, national strategies do not find satifsactory directions in Korea. In terms of this concenrs, this paper tries to analyze and diagnose about successful precedents(Tsumage village and Shiragawa village, Japan) with focus on the village management. And this paper aims to explore concrete management systems of Japanese cases, to find clues for practical application, and to suggest several instructive concepts in the light of management system of traditional village management. The analysis is progressed in three viewpoints(village space, village attraction, and village community). And it is extracted that diverse management systems are necessary to secure sustainable traditional village and their way of life, particularly in the face of the pressure of tourism. As a result of exploring of Japanese two cases, representative characteristics, which are found, are as follow; Fist, objective of management is not tourism development but maintenance of sustainable life system. Second, management systems are having not compulsory but spontaneous open decision making process, and in particular, village management is mainly operated by the local government and semipublic institute(inhabitants-oriented0 which have the strongest influential power in village composition units. Finally, village management programs are mostly experience-type and are composed of public law and regulations, diverse operation program, and individual efforts of inhabitants for village management. Because this paper mainly focused on two precedents, there should be more diverse cases. however, extracted conclusions have practical meanings for village management and can be used in re-establishing management concepts of Korean traditional villages.

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한국 간호교육에서의 시뮬레이션: 통합적 고찰 (Simulation in Nursing Education in South Korea: An Integrative Review)

  • 장애리;김자숙;김수현
    • 한국산학기술학회논문지
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    • 제21권4호
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    • pp.525-537
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    • 2020
  • 본 연구 목적은 향후 시뮬레이션 기반 운영 과정에 대한 과학적 근거를 제공하기 위해 연구 결과를 종합적으로 검토함으로써 Jeffries 이론적 프레임 워크를 기반으로 한국의 간호 교육에서 시뮬레이션 기반 운영 프로세스의 현재 상태와 특성을 확인하는 것이다. 본 연구는 2017년 11월까지 "시뮬레이션"과"간호"라는 용어를 사용하여 한국 교육연구 정보원, 국립 도서관, 한국학 정보원 서비스 시스템, 국립 디지털 과학 도서관, 한국 과학 기술 정보원, KOREAMED, 한국 의료 데이터베이스 등 8개의 데이터베이스에서 한국어로 출간된 연구들을 검색했다 연구결과 16개의 연구가 확인, 검토 및 평가되었다. 문헌은 연구의 일반적인 특성, 운영 방법, 교수학습방법, 참여자 특성, 결과변수 및 이론적 틀이라는 주제로 분류되었습니다. 본 연구에서 분석한 한국의 간호 교육 시뮬레이션 과정은 NLN Jeffries 시뮬레이션 이론적기틀에서 제안된 주요 개념을 완전히 반영하지는 않았다. 추후 시뮬레이션 프로그램 개발자는 시뮬레이션 효율성을 향상시키기 위해 필수 구성 요소를 확인하고 다양한 전략을 고려하여 통합해야 할 것이다.

통합적 교육프로그램이 진단 직후 유방암 환자의 지식, 자기효능감 및 대응방식에 미치는 효과 (The Effects of a Comprehensive Education Program on Knowledge, Self-Efficacy, and Coping Style among Newly Diagnosed Patients with Breast Cancer)

  • 이건숙;이란;김동미;김수현
    • 종양간호연구
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    • 제12권1호
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    • pp.35-43
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    • 2012
  • Purpose: The purpose of the study was to identify the effect of a comprehensive education program on knowledge, self-efficacy for self-management, and coping style among newly diagnosed patients with breast cancer. Methods: This study used a one group pretest-posttest design. Data were collected from April to September, 2010 at a cancer-specific hospital in Goyang, Korea. One hundred forty three women received a comprehensive education program consisting of 3 sessions composed of 8 themes was conducted by several experts (nurses, doctors, dietitians and clinical psychologists) for 3.5 hours a day for 3 days (1 day before and 2 days after the operation). Results: This study showed that knowledge and self-efficacy for self-management significantly increased after education (p<.001). In terms of coping style, however, only the subscale, 'anxious preoccupation', significantly improved (p=.001) among 5 sub-scales of coping style after education. Conclusion: A comprehensive education program for newly diagnosed patients with breast cancer was effective for increasing the knowledge and self-efficacy for self-management of breast cancer, in addition to decreasing the coping style of 'anxious preoccupation'. However, it did not improve other coping style. Therefore, other strategies for improving coping style are needed.