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박은경,이상민,한영호,이종연,권세윤,김인영,김선일,Park E. K.,Lee S. M.,Han Y. H.,Lee J. Y.,Kwon S. Y.,Kim I. Y.,Kim Sun I. 대한의용생체공학회 2004 의공학회지 Vol.25 No.6
혈압은 심혈관계 질환을 비침습적인 방법으로 진단할 때 사용하는 중요한 생리적 지표 중 하나이다. 보통 동맥 혈압을 측정하기 위해 사용되는 기존의 비침습적인 방법들은 커프를 사용해야 하며. 연속적 혈압 측정이 어렵다. 수축기 혈압과 맥파전달시간은 서로 반비례 관계를 가지고 있다. 실험은 피검자로부터 휴식을 통한 평온한 상태와 운동을 통한 격한 상태로부터 수축기 혈압과 맥파전달시간 데이터를 얻었다. 얻어진 데이터를 이용하여 각 피검자용 회귀식과 전체 피검자용 회귀식을 만들기 위해 선형회귀분석을 하였다. 만들어진 회귀식의 정확도를 검증하기 위해 측정한 수축기 혈압값과 예측한 수축기 혈압값을 비교하였다. 비교 결과, 각 피검자용 회귀식이 혈압계는 오차의 평균과 표준편차가 각각 ±5mmHg, 8 mmHg를 가져야 된다고 규정한 American National Standards Institute of the Association of the Advancement of Medical Instrument (ANSI/AAMI)에 적합하였다. 그러나 전체 피검자용 회귀식은 ANSI/AAMI의 규정에 적합하지 않았다. 이 결과는 맥파전달시간과 각 피검자에 맞는 초기 보정을 통해서 커프를 사용하지 않고, 연속적으로 수축기 혈압을 측정할 수 있음을 의미한다. Blood pressure (BP) is one of the important physiological parameters for diagnosing cardiovascula diseases by means of noninvasive method. Existing noninvasive methods for measuring arterial BP have to use cuff and difficult in measuring arterial BP continuously. Systolic blood pressure (SBP) and pulse transit time (PTT) have a kind of inverse relationship. We acquired PTT data when subjects were in relaxation and also after exercise. We performed the linear regression analysis for making the regression equations for each subject and the regression equation for all subjects. We compared the estimated SBP with the measured SBP to check the accuracy of our regression equations. From the result, the regression equations for each subject was appropriate according to the American National Standards Institute of the Association of the Advancement of Medical Instrument (ANSI/AAMI) which says that BP devices should have ±5mmHg mean of error and 8mmHg standard deviation of error. However, the regression equation for all subjects was not proper to ANSI/AAMI recommendation. The result means that, without cuff, we can continuously estimate each subject's SBP through PTT and indivisual calibration.
김정애 ( J A Kim ),박은경 ( E K Park ),변대훈 ( D H Byun ) 대한임상검사과학회 1992 대한임상검사과학회지(KJCLS) Vol.24 No.1
EDTA 2K, one of the some kinds of anti-coagulants used for hematology tests, is most frequently used for CBC tests since it does not affect the size and blood cell morphology. Nowadays automatic cell counters are widely supplied to many hospitals, big or small, and are commonly used. As a result, platelet test has become a routine CBC ,test. In fact, patient blood sample with a normal platelet sometimes show a much decreased number of platelet due to platelet aggregation and platelet satellism affected by EDT A anti-coagulant which is so called pseudothrombocytopenia. If any further confirmation tests are not done for such patient, then it can lead misdiagnosis and unnecessary medical care such as bone marrow aspiration, various platelet function test and transfusion for platelet concentrated and it can raise a problem later on. We found that pseudothrombocytopenia from two patient blood samples showing decrease of platelet and report hereunder with brief literatures.
담배줄기 속썩음병균 Erwinia carotovora subsp. carotovora의 토양중에서의 월동
강여규,박은경,추홍구,Gang, Yeo-Gyu,Park, E.K.,Chu, H.G. 한국연초학회 1989 한국연초학회지 Vol.11 No.1
The significance of soil and/or rhisosphere populations of Erwinia carotovora sobsp. carotovora (Ecc) as a source of primary inoculum for tobacco hollow stalk disease has been demonstrated conclusively. The survival of Ecc in field soils fter overwintering was estimated by using the enrichment technique. The population number of pectolytic erwinia (PE) in field soils relatively decreased at the rate of 102-104 colony forming unit(CFU) per g of soil after overwintering. Higher level of PE population overwintered in the rhlzosphere foils of tobacco stubbles and detected more frequently in rhizosphere soils of weed plants than in those of bare fields. All of the tobacco stubbles collected from fields where tobacco had been grown the previous year contained Ecc. The more survived population number of PE at the 30cm depth of artifitiany infested soils than at the upper of those by introducing with diseased tobacco plant tissue after overwintering. Ecc overwintered effectively in rhizosphere soils of tobacco stubbles, overwintered weeds and tobacco debris in field soils.
폴리에칠렌 차단망 설치에 의한 연초의 진딧물 전염 PVY 방제효과
채순용,김상석,박은경,Chae, S.Y.,Kim, S.S.,Park, E.K. 한국연초학회 1994 한국연초학회지 Vol.16 No.1
Potato virus Y (PVY) is an important viral disease in burley tobacco in Korea and is mostly transmitted by green peach aphid, Myzus penicae, in nature. Effects of barrier nets on the immigration of the aphid population into tobacco fields and on the control of PVY were investigated in 3 tobacco fields with 1.8 m - height polyethylene (PE) nets on their outer - sides in Iseo - Myeon, Wanju - Kun, Cheonbuk. Immigration of aphids to the tobacco yields started at late April and reached maximum at early June. The immigrating aphid population was apparently blocked by the barrier nets to be reduced by 54-73%. PVY severity was also reduced by the barrier nets. However, the control value was variable, ranging 24-67%, which suggests that effect of the PE net barrier on the prevention of aphid-borne virus might be variable depending on the location and slope of the fields.
폐경 전,후 여성의 운동 및 음주습관에 따른 골밀도와 체력에 관한 연구
유재현 ( J. H. Yoo ),박은경 ( E. K. Park ),유광욱 ( K. W. Yoo ) 한국운동생리학회(구-한국운동과학회) 2011 운동과학 Vol.20 No.1
본 연구는 폐경 전·후 여성을 대상으로 운동습관과 음주습관에 따라 골밀도와 체력에 미치는 영향을 분석하여 운동프로그램에 관련된 유용한 정보를 제공하는데 목적이 있다. 연구를 수행하기 위하여 강원도 C보건소를 내원한 여성 508명(폐경 전 215명, 폐경 후 293명)을 대상으로 하였다. 피험자들은 운동습관에 따라 비운동군, 저운동군(주당 2회 이하 운동), 중정도 운동군(주당 3회 이상)으로, 음주습관에 따라서는 비음주군과 음주군(주당 2회 이하 음주)으로 각각 분류하였다. 측정변인은 골밀도와 최대산소섭취량, 체지방률, 악력, 유연성, 민첩성, 평형성으로 하였으며, 집단 간 차이를 검증하기 위하여 운동습관에 따라서 one-way ANOVA, 음주습관에 따라서 Independent t-test를 각각 실시하였다. 폐경 전의 경우, 운동습관에 따라 유연성에서만 유의한 차이를 보였으며, 골밀도 및 기타 체력요인에서는 유의한 차이를 나타내지 않았다. 폐경 후의 경우, 골밀도와 체지방율에서 통계적으로 유의한 차이를 나타내었다. 음주습관에 따라서는 폐경 전 음주군이 비음주군에 비하여 골밀도가 낮았으나 통계적으로 유의하지는 않았다. 하지만 폐경 후의 경우, 음주군이 비음주군에 비하여 통계적으로 유의한 수준에서 높은 수준을 나타내었다. 결론적으로 규칙적인 운동은 골밀도와 체력유지에 도움을 주지만 본 연구에 비추어 볼 때, 성별, 연령별 특성을 고려한 운동목적의 설정과 교육 및 홍보가 필요하다고 사료되어진다. The purpose of the this study was to examine the comparison of bone mineral density and health related physical fitness induced exercise & drinking habits on pre and post-menopause of female. Using a cross-sectional approach, we studied 508 women(respectively, pre menopausal 215, post menopausal 293) who visited the C health center at Kangwon-Do. Subjects were divided into 3 groups depended on exercise habit(sedentary, exercise less than twice a week and more than three time a week) also, 2 groups depended on drinking habit(not drink and drink less than twice a week), respectively. We measured bone mineral density and health related physical fitness. One-way ANOVA were used to assess differences among 3 groups divided on exercise habits. Independent t-test were used to assess differences between drinkers and non-drinkers. Significance was accepted at p<.05. In pre-menopause, exclude sit & reach, physical fitness and BMD showed no significant difference among the exercise habits. Also, comparing with the non-drinkers, the drinkers had no significant differences in bone mineral density and physical fitness levels. In post-menopause, BMD and % of body fat showed significant differences among the exercise habits. Also, bone mineral density of drinkers showed a higher tendency than non-drinkers, but physical fitness had no significant differences between the groups. This study suggests that regular exercise can improve bone health by increasing bone mass or preventing age-related bone loss. Also, low intake of alcohol in pre-menopausal women may have decreased the bone mineral density, but in post-menopausal women may prevent decreasing of bone mineral density.