• 제목/요약/키워드: discharge cleaning

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섬유 폐수 활성 슬러지에서 분리한 Comamonas testosteroni의 생물학적 페놀 분해 (Biodegradation of Phenol by Comamonas testosteroni DWB-1-8 Isolated from the Activated Sludge of Textile Wastewater)

  • 권해준;최두호;김미경;김동현;김영국;윤혁준;김종국
    • 생명과학회지
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    • 제30권2호
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    • pp.156-161
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    • 2020
  • 산업화 이후 다양한 화학물질의 생산과 이용은 우리 삶의 질을 높이는데 기여하였지만 그로 인한 대량의 폐기물 방출은 필연적이며 환경오염은 날이 갈수록 심각해지고 있다. 환경오염에 의한 화학물질의 노출은 인간의 건강과 생태계에 악영향을 주고 있다. 우리의 삶에 영향을 줄 수 있는 오염된 환경을 정화하는 것은 매우 중요한 문제이다. 광범위한 석유화학제품의 사용으로 인해 독성 난분해성 방향족화합물이 토양, 지하수, 폐수 등에서 빈번하게 검출되고 있다. 특히 합성수지, 합성섬유, 염료, 살충제, 방부제 등의 원료로 사용되는 페놀은 주요 오염물질이며, 호흡곤란, 두통, 구토, 돌연변이, 발암 등을 일으킬 수 있다. 본 연구에서는 페놀분해균주인 DWB-1-8을 섬유폐수에서 분리, 동정하였으며 16S rRNA유전자 염기서열분석결과 Comamonas testosteroni로 동정 되었다. 본 실험 균주의 최적 생장 및 최적페놀분해 배양 조건은 0.7% K2HPO4, 0.6% NaH2PO4, 0.1% NH4NO3, 0.015% MgSO4·7H2O, 0.001% FeSO4·7H2O, 초기 pH 7 및 30℃ 였으며, 다른 독성 화합물인 벤젠, 톨루엔 혹은 크실렌(BTX)을 유일탄소원으로 이용하여 생장할 수 있었다.

산모와 간호원이 본 선택된 산욕기 간호활동의 중요도에 관한 탐색적 연구 (An Exploratory Study about the Importance of Selected Nursing Activities during the Puerperal Period, as Viewed by Women in the Puerperal Period and by Nurses Caring for Them)

  • 박주봉
    • 대한간호학회지
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    • 제8권1호
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    • pp.152-162
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    • 1978
  • The desire to maintain health is increasing, consequently the role of nursing which has as one chief aim the solving of man′s basic problems is more and more important. Today, in spite of a growing concern about the nursing activities which nurses provide for individual human having specific needs, clinically in fact, it is questionable that individual′s expectation of nursing activities agrees with nurse′s performance of nursing activities. In this study the importance and agreement of the importance of the nursing activities during the hospitalized puerperal period as viewed by women in the puerperal period and by nurses caring for them, were assessed. The present study was undertaken in an attempt to furnish the basic data for expediting the progress of research activities in this area and further to be helpful in planning maternity nursing practice. The study population defined and selected was nurses (13) caring for women in the puerperal period and doing duty on obstetric & gynecologic ward at Y. hospital, and the women in puerperal period (39) as sum of 3 women selected by each nurse during the period of May 13th-June 4th 1976. The study data was collected by the direct interview method based on the questionnaire which the investigator made out. The study result was analyzed by percentage, t - test. The findings can be summarized as follows: 1. General characteristics of nurses doing duty on puerperal ward: a. Nurses′average age was 24.8 years old. b. 84.6% had educational background of 4 years of college. c. 69.2% had a religion. d. 53.8% were married. e. 53.8% had clinical experience of 1 year -3 years. f, 61.5% did duty on puerperal ward during 1 year -3 years. g. 46.2% desired to do duty on obstetric ? gynecologic ward. 2. General characteristics of the women who were studied during their puerperal period: a. Women′s average age was 26.4 years old. b. 79.5% had educational background above high school. c. 56.4% had a religion. d. 84.6% had living standard above medium. e. 89.7% had no occupation. f, 53,8% had previous hospitalization experience. g. 56.4% had previous delivery experience. 3. Examining the importance of 39 nursing activities during puerperal period selected by investigator, studied group of women considered that the most important nursing activity was "Record precisely about condition, medical treatment and nursing activity results etc". Nurses considered that the most important nursing activity was "Notice whether having pain and care for that". Both groups considered that the least important nursing activity was "Talk with her about topics such as news, hobbies, other interests". 4. Examining the importance of nursing activities in 4 specific categories, studied group of women considered that the most important nursing activity in physical nursing category was "Be sure of safety measure to prevent accidents, injuries", and nurses considered that the most important nursing activity was "Make her sleep and rest sufficiently". Studied group of women considered that the most important nursing activity in psychological category was "Explain about medical treatment and nursing activity ahead of time so she knows what to expect" , and nurses considered that the most important nursing activity was "Explain about puerperal period so she understands". Studied group of women considered that the most important nursing activity in relation to medical care was "Record precisely about condition, medical treatment and nursing activity results etc.", and nurses considered that the most important nursing activity was "Observing, cleaning and protecting the perineum" Studied group of women considered that the most important nursing activity in nursing category in preparation for discharge was "Instruct about personnel hygiene during puerperal period", and nurses considered that the most important nursing activity was "Instruct self-care to protect the perineum". 5. The analysis of this study showed a significant amount of disagreement computed by subtracting the nurse′s score from the patient′s score. Studied group of women put greater importance on physical nursing category, psychological nursing category, nursing in relation to medical care, than the nurses. These results were statistically significant at 0.01 level.

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