• 제목/요약/키워드: Reproductive Physiology

검색결과 283건 처리시간 0.018초

강제환우계에서 복강지방, 장기, 근육조직의 변화 (Recovery Pattern of Abdominal Eat, Visceral Organs, and Muscle Tissues in Induced Molting Hens)

  • M. Akram;rahman, Zia-ur;Park, J.H.;M.S. Ryu;C.S. Na;K.S. Ryu
    • 한국가금학회지
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    • 제29권4호
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    • pp.237-241
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    • 2002
  • 산란노계에서 강제환우가 체중, 복강지방, 장기, 근육조직의 변화에 미치는 영향을 고찰하고자 77주령 산란계 360수를 7주간 강제환우를 시행하였다. 강제환우전, 산란율 5%, 산란피크, 실험종료 시기인 126주령에 단계별로 각각 36수씩 희생시킨 후에 체중, 복강지방, 장기 및 번식기관의 길이와 무게를 조사하였으며, 가슴과 다리근육에서 지방함량을 분석하였다. 체중은 산란 5% 시기에 제일 낮았으며 산란율이 증가하면서 실험 종료시기에 극대화되었다. 복강지방도 체중의 변화와 비슷한 경향을 보였다. 간의 체중에 대한 비율도 강제환우 후에 제일 낮았지만 실험 종료시에 현저하게 높았다(P<0.05). 심장과 근위의 무게는 산란율이 5%에 도달하였을 때 제일 높았지만, 그 후에는 강제환우 이전과 동일한 경향을 보였다. 산란율이 5%에 도달한 시점에서 장기와 번식기관의 무게는 다른 시기에 비하여 현저하게 낮았지만 산란율이 높아지면서 그 무게가 증대되었으며 실험 종료시에 제일 높게 나타났다(P<0.05). 가슴과 다리근육의 지방함량도 산란율이 5% 도달시에 제일 낮게 나타났으며, 실험 종료시에 현저하게 높았다(P<0.05). 본 실험의 결과 산란노계에서 강제환우 전후시기에 체중, 장기, 근육의 변화의 주요 원인은 주로 복강지방과 다른 장기 및 근육에서 지방의 함량감소에 기인하였음을 확인하였다.

청색파장(靑色波長)영역이 결여된 태양광이 작물(作物)의 생산성(生産性) 및 내냉성(耐冷性)의 향상에 미치는 효과 Ⅰ. 광합성(光合成) 및 호흡(呼吸)의 전자전달계 활성(活性)의 변화 (Effect of Blue Color-deficient Sunlight on the Productivity and Cold Tolerance of Crop Plants)

  • 정진;김종범;민봉기
    • 한국환경농학회지
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    • 제5권2호
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    • pp.141-148
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    • 1986
  • 청색광(靑色光)이 결여된 자연광(自然光)이 작물의 생장특성(生長特性)에 미치는 효과를 조사하고 나아가 세포생리학(細胞生理學) 측면에서 그 효과를 검토하였다. 광질(光質) 환경(環境)을 조절하기 위해서 본(本)연구실에서 개발한 $350{\sim}500㎚$ 파장(波長)영역의 청색광을 약 70% 제거하는 plastic film(BCR film이라 명명(命名))으로 하우스를 설치하였고, 대조구(對照區)는 무색(無色) PE film으로 설치된 하우스를 이용하였다. 태양광(光)중 청색광이 결여된 광질(光質)의 환경은 공시품종(供試品種)인 고추, 오이, 호박, 상치, 토마토에서 시설 원예적인 측면으로 볼 때 두가지의 주목(注目)할 만한 효과를 나타냈다. 첫째, 대조구(對照區)에 비하여 전(全) 작기(作期)에 걸쳐 보다 왕성한 생장력(生長力)을 보였으며 현저한 증수(增收)를 가져왔다. 둘째, 저온처리(低溫處理)에 의한 냉해 발현(發現) 정도를 비교한 결과 내한(耐寒) 능력(能力)이 상당히 향상되었음을 관찰할 수 있었다. 이러한 효과는 세포내(內) 소기관(小器官)의 생리적(生理的) 활성(活性)에 반영(反映)되어 있었다. 즉 BCR film하(下)에서 자란 작물잎의 엽록체(葉綠體)는 백색광(白色光) 대조구(對照區)의 그것에 비하여 광합성(光合成)전자전달계의 활성이 월등히 향상되었으며, 미토콘드리아의 호흡(呼吸)전자전달계가 정상적인 활성을 유지하는 온도의 하한점(下限點)이 대조구(對照區)의 그것에 비하여 수(數) $^{\circ}C$ 하강되었다.

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임상 간호원을 위한 실무교육 과정으로서의 가족계획 (Family Planning as a Part of the Nursing-Staff In - Service Education Program)

  • 전춘영
    • 대한간호학회지
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    • 제5권1호
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    • pp.112-132
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    • 1975
  • When Korean family planning services began as a part of the National Policy in 1962, the annual population growth was 3.0%. This growth rate has been decreased to 2.0% during last ten year period. And it seems imperative that all hospitals, as well as related organizations, should participate in family planning in order to contribute to achieving the National goal of 1.5% population growth by 1976, the end of the Third Five Year Economic Development Plan. Nurses should be considered the most important human resources in charge of the core of family planning services in any setting. For the family planning services in the general hospital setting, nurses as a core members contribute much as change agent, motivators, counsellors, educators etc. A nurse can work with patients and their relatives when she is equipped with relevant knowledge and skills. Fur the more family planning cannot be ignored even in hospital setting where more comprehensive nursing care is needed Thus, the general objective of this study is to provide baseline data for better programming of In-service education in family planning so that effective hospital family planning nursing services can be made a part of comprehensive nursing care contributing to the national population program and human welfare. In order to meet the general objective, this study has the following specific objectives : 1. To find out the general characteristics of the clinical nurses working in Y Hospital 2. To evaluate their attitudes and practices of family planning 3. To assess their knowledge, attitudes and practices of population and family planning as professional nurses. 4. To examine and compare data collecting methods for the planning of an In-service Educational Program 5. To explore the contents to be included in this In-service Education Program. The study population randomly selected one hundred nurses working in Y Hospital A cross-sectional survey with questionnaires developed for this study was chosen for the study method. To collect reliable data, the questionnaires were distributed to and answered by the study population in a controlled situation. X²test and t-test was employed in analyzing the data. The findings of this study are as follows: 1. Y Hospital nurses had a lower ideal number of children (X=2.02) and showed no strong preference for male children, and 74% of them expressed the desire to use permanent methods of birth control 2. of this thirty Y Hospital nurses who were married 66.7% stated they were already practicing contraceptive methods. Most of them preferred male methods of contraception. 3. According to objective evaluation about knowledge of various aspects of population and family planning, respondents from collegiate programs significantly knew better the subjects on the average than did respondents from diploma programs of nursing. 4. There was a marked difference in the results of self-evaluation and objective evaluation in their family planning knowledge. It was found that the self-evaluation family planning knowledge seemed to be unreliable. Accordingly, the objective test methods appeared to be more reliable in the evaluation of knowledge levels. 5. The subject areas needed to be included in In-service education for the Hospital family planning services in Y Hospital are 1) rhythm methods, 2) tubal-legation, 3) family planning effects of contraceptives, 4) population growth, 5) demographic traction, 6) population structure and 7) infant mortality facts. In addition, 1) various oral contraceptives, 2) basal temperature method, 3) laparoscopic female sterilization, 4) interfering factors of family planning, 5) anatomy and physiology of the female reproductive organs were additional areas to be taught to respondents from 3-year diploma schools of nursing. Demographic transition was one subject area in which the four-year graduates need further study. 6. Population problems guidance and counselling in family planning instruction in the theory and practice of contraceptives should be included in future In-service Education Programs in order to provide more effective hospital Family Planning Services, stated 77.0% of the respondents.

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