• 제목/요약/키워드: Trial Division

검색결과 645건 처리시간 0.027초

중환자실 입원 환자의 눈 간호를 위한 근거기반 지침 개발 (Development of an Eye Cure Protocol for ICU Patients)

  • 유지수;이원희;김소선;고일선;오의금;추상희;이주희;강세원;송은경;장수정;김복희;이정은
    • 기본간호학회지
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    • 제15권1호
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    • pp.34-44
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    • 2008
  • Purpose: The purpose of this study was to develop an eye care protocol for intensive care unit (ICU) patients. Method: A systematic review was conducted to develop an eye care protocol for ICU patients. Searches were performed using computerized databases (CINAHL, MEDLINE, EBM Review) and citation search from 1996 to January 2007. For the keywords, "eye care", and "randomized controlled trial" were used to identify experimental studies regarding eye care for ICU patients. After reviewing the collected studies, a preliminary eye care protocol algorithm was created. Then, content validity was examined with ophthalmologists and ICU nurses. Results: Six studies were included to serve as a basis for framing of the preliminary algorithm. The final eye care protocol was completed after verifying the preliminary algorithm's content validity. The final eye care protocol was organized in the following manner: 3 items in the assessment stage, 7 items in the no-risk stage, 4 items in the low-risk stage, and 5 items in the high-risk stage. Conclusion: The results indicate that, for ICU patients, nurses can broaden their knowledge regarding ocular diseases, as well as improve their practice-based eye care nursing performance.

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자하거(紫河車) 약침의 기관지 천식 치료 가능성에 대한 소고(小考) (Hominis Placental Pharmacoacupuncture, a Promising Asthma Therapy)

  • 최준용;오달석;정희재;최선미;정승기
    • Korean Journal of Acupuncture
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    • 제25권2호
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    • pp.87-94
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    • 2008
  • Objectives : The aim of this study was to find out some rationales for using Hominis placental extract(HPE) pharmaco-acupuncture on asthmatic patients, and to suggest an appropriate clinical research of HPE pharmaco-acupuncture on asthma. Methods : Articles regarding immunologic experiments about HPE and clinical reports about HPE-contained pharmaco-acupuncture on asthmatic patients were reviewed by on-line and off-line searching. Results and Conclusions : HPE is suggested to have several pharmacological effects on allergic diseases including asthma as well as autoimmune diseases. There are some observational studies of HPE-contained pharmaco-acupuncture on asthmatic patients. However, the designs of these studies are not sufficient to investigate the exact effect of HPE pharmaco-acupuncture on asthma. To investigate HPE pharmaco- acupuncture as a novel asthma therapy, it will be needed to perform further experiments about HPE's pharmacological mechanism on asthma and to try further advanced clinical researches such as well-designed randomized controlled trial of HPE pharmaco-acupuncture.

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3상 정류기부하에 대한 수동 고조파필터의 해석 및 설계 (Analysis and Design of a Passive Harmonic Filter for a Three-Phase Rectifier)

  • 조영식;차한주
    • 전기학회논문지P
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    • 제58권3호
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    • pp.316-322
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    • 2009
  • This paper presents an analytical design method of a passive harmonic filter for a three-phase diode rectifier and uses a new transfer function approach in the analysis and design. The transfer function approach derives an analytical formulation of an utility system including passive filters with a basis of Laplace transform and provides a graphical formulation so that a visualized insight into an interaction between individual filter and system response can be attainted. Harmonic impedance, voltage division and current division transfer function are used as a design tool, which makes a calculated filter parameters to satisfy IEEE-519 distortion limits. A simple five-step design procedure is introduced in the filter design, which consists of system analysis, selection of PCC(Point of Common Coupling), filter specification calculation, appropriate filter design for system and filter implementation. Philosophy governing the design procedure is based on a numerical/graphical iterative solution, trial and error with visualization feed-back based on "algebra on the graph". Finally, performance of the designed passive harmonic filter is verified by experiment and shows that 5th, 7th, 9th, 11th and 13th harmonics are decreased within IEEE-519 distortion limits, respectively.

Effects of Inclusion Levels of Dietary Vitamins and Trace Minerals on Growth Performance and Pork Stability in Finishing Pigs

  • Chae, B.J.;Choi, S.C.;Cho, W.T.;Han, In K.;Sohn, K.S.
    • Asian-Australasian Journal of Animal Sciences
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    • 제13권10호
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    • pp.1445-1449
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    • 2000
  • A total of one hundred twenty pigs ($L{\times}Y{\times}D$, $50{\pm}0.78kg$) were employed for a 7-week feeding trial to determine the effect of inclusion levels of vitamin and mineral (VTM) premixes on growth performance, nutrient digestibility and pork stability in finishing pigs. Treatments were 100% (Control), 150%, 200%, and 250% of NRC (1998) requirements. Increasing dietary VTM premixes in finishing pigs had a linear (p<0.05) effect on ADG. It also had a linear effect (p<0.05) on the digestibility of calcium and a linear and quadratic effect (p<0.05) on the digestibility of phosphorus. As dietary VTM levels were increased from 100 to 250% NRC (1998), TBARS values of pork samples were linearly (p<0.05) lowered when stored at $1^{\circ}C$ for 2 or 3 weeks. There was also a trend reducing POV of pig meat as dietary VTM level was increased. In conclusion, it would appear that inclusion of VTM premixes at the level of 200-250% of NRC (1998) requirements gave positive effects on growth performance and pork stability in finishing pigs.

전기 유압식 동력 조향시스템의 모델링 및 시뮬레이션에 관한 연구 (A Study on the Modeling and Simulation of an Electro-Hydraulic Power Steering system)

  • 김지혜;김성관
    • 한국산학기술학회논문지
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    • 제13권3호
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    • pp.1008-1013
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    • 2012
  • EHPS는 탈엔진형 조향기술로 BLDC 모터를 통해 유압펌프를 작동시켜 조향력을 보조하는 동력 조향장치이다. EHPS는 BLDC 모터, 기어펌프 및 유압회로, 파워 스티어링 등으로 이루어진 전기전자, 유압 및 기계시스템의 복합적 시스템으로 모델링이 어렵다. 본 논문에서는 EHPS 시스템의 구성 부품을 수학적 모델링 하였고, AMESim을 이용하여 multi-domain 시스템의 시뮬레이션 모델을 구축하였다. 이를 활용한 다양한 시뮬레이션을 통해 개발 초기단계에서의 시행착오를 줄이고 완성도 높은 EHPS 개발 업무를 수행하는 데 도움을 줄 수 있을 것으로 사료된다.

폐암(肺癌)의 한방치료 임상연구 방법론 (Clinical research methodology for Traditional Korean Medicine treatment of lung cancer : Evidence-based approach)

  • 김경석;김세현;어완규;전성하;엄석기;조학준
    • 대한한의학원전학회지
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    • 제23권4호
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    • pp.39-62
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    • 2010
  • Background : I investigated clinical research methodology of Traditional Korean Medicine(TKM) for treatment of lung cancer with Evidence Based Medicine(EBM) approach. Methods : I conducted the internet search of National Central Library, the National Assembly Library, Korea Education & Research Information Service, Korea Institute of Science and Technology Information for Korean theses and papers, and MEDLINE for the outside articles. Conclusion : In addition to outcomes of clinical trial, abundant clinician's experience and patients' preference are also considered. Pragmatic trials and quasi-experimental trials are better than clinical trials to plan clinical design of TKM for lung cancer and appropriate endpoints includes overall survival, disease-free survival, patient reporting outcome.

Ginseng for managing menopause symptoms: a systematic review of randomized clinical trials

  • Kim, Myung-Sunny;Lim, Hyun-Ja;Yang, Hye Jeong;Lee, Myeong Soo;Shin, Byung-Cheul;Ernst, Edzard
    • Journal of Ginseng Research
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    • 제37권1호
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    • pp.30-36
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    • 2013
  • The aim of this review was to assess the effectiveness of ginseng as a treatment option for managing menopause symptoms. We searched the literature using ll databases from their inception to 26 September 2012 and included all randomised clinical trials (RCTs) that compared any type of ginseng to a placebo controls in postmenopausal women. The methodological quality of all studies was assessed using a Cochrane risk of bias tool. Four RCTs met our inclusion criteria. Most RCTs had high risk of bias. One RCT showed that Korean red ginseng (KRG) significantly improved sexual arousal and global health compared with placebo. Another RCT reported the superiority of KRG over placebo for treating menopause symptoms on Kupperman's index and menopausal rating score. The third RCT failed to show a significant effect of KRG on hot flash frequency compared to placebo. The fourth RCT found beneficial effects of ginseng compared to placebo on depression and well-being. In conclusion, the evidence on ginseng as an effective treatment for managing menopause symptoms is limited. Most of the RCTs are burdened with a high risk of bias. Thus firm conclusions cannot be drawn. Rigorous studies seem warranted.

혈관성 치매 치료 약물에 대한 문헌 고찰 연구 : 외국문헌을 중심으로 (A review study of treatment effects for vascular dementia)

  • 이영준;한창현;전원경;백경민;전우현;최성훈
    • 대한예방한의학회지
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    • 제15권2호
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    • pp.51-67
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    • 2011
  • The average human life span has increased due to the development of modern medicine and science, resulting in prolonged life expectancy and increase in the population counts of the geriatric age group. In particular, a dramatic increase of elderly patients suffering from senile disorders including neurodegenerative diseases, Alzheimer's disease(AD), and vascular dementia has become a serious social problem in public health. Thus, this study is aimed to summarize available clinical trial data on several commonly used medicines include donepezil, rivastigmine, galantamine, memantine and oriental medicine, and examine the effect of oriental medicine combined with western medicine in the treatment of patients with senile disorders using the data from literature reviews and survey studies.

Disadvantages of Complete No. 10 Lymph Node Dissection in Gastric Cancer and the Possibility of Spleen-Preserving Dissection: Review

  • Toriumi, Tetsuro;Terashima, Masanori
    • Journal of Gastric Cancer
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    • 제20권1호
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    • pp.1-18
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    • 2020
  • Splenic hilar lymph node dissection has been the standard treatment for advanced proximal gastric cancer. Splenectomy is typically performed as part of this procedure. However, splenectomy has some disadvantages, such as increased risk of postoperative complications, especially pancreatic fistula. Moreover, patients who underwent splenectomy are vulnerable to potentially fatal infection caused by encapsulated bacteria. Furthermore, several studies have shown an association of splenectomy with cancer development and increased risk of thromboembolic events. Therefore, splenectomy should be avoided if it does not confer a distinct oncological advantage. Most studies that compared patients who underwent splenectomy and those who did not failed to demonstrate the efficacy of splenectomy. Based on the results of a randomized controlled trial conducted in Japan, prophylactic dissection with splenectomy is no longer recommended in patients with gastric cancer with no invasion of the greater curvature. However, patients with greater curvature invasion or those with remnant gastric cancer still need to undergo splenectomy to facilitate splenic hilar node dissection. Spleen-preserving splenic hilar node dissection is a new procedure that may help delink splenic hilar node dissection and splenectomy. In this review, we examine the evidence pertaining to the efficacy and disadvantages of splenectomy. We discuss the possibility of spleen-preserving surgery for prophylactic splenic hilar node dissection to overcome the disadvantages of splenectomy.

일황연(日黃連)의 시험재배(試驗栽培)와 Berberine 함량(含量)에 관(關)한 연구(硏究) (Studies on the Cultivation Trial of Coptis japonica $M_{AKINO}$ in Korea and Its Berberine Contents)

  • 윤원용;이용주;박재주
    • 생약학회지
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    • 제9권4호
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    • pp.177-180
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    • 1978
  • In oriental medicine, Coptis japonica $M_{AKINO}$ (Ranunculaceae) has been known as bitter stomachics. This plant originally grows wild and has been cultivated in Japan but not in Korea. However, a few years ago, some workers have been trying to cultivate this plant in Korea and have made much progress. Therefore, this . study was made for the purpose of conforming possibility in cultivation of Coptis japonica $M_{AKINO}$ in Korea. The results were as follows: 1) Berberine contents of rhizomes are much more than of K.P.. Difference in contents between Eu Jeon Bu $(4.88{\pm}0.77%)$ and Bo Seong area $(3.62{\pm}0.50%)$ is significant (p<0.05). 2) Berberine contents of fibrous roots of Eu jeong Bu $(0.97{\pm}0.28%)$ area was similar to that of Gang Nam $(0.93{\pm}0.21%)$, Yang Pyung area $(0.91{\pm}0.14%)$ but only contents of Bo Seong area $(0.74{\pm}0.25%)$ is less than that of other area and it's difference is not significant. 3) It was considered that the cultivation of Coptis japonica $M_{AKINO}$ in Korea is possible considering the cultivation results and berberine contents, and also more moderate than south region.

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