• 대한의용생체공학회:의공학회지
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• 제24권5호
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• pp.465-471
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• 2003

본 논문에서는 생체신호 파라미터들을 이용해서 만성적인 스트레스를 평가하는 방법을 개발하고자 하였다. Wistar 쥐에게 14 일간의 소음 스트레스를 부과하고, 매 시간마다 생체신호를 획득하였다. 생체신호로부터 추출한 파라미터들을 통합하기 위한 퍼지추론시스템을 구축하기 위하여, 적응형 뉴로-퍼지 추론시스템으로 퍼지추론시스템의 파라미터들을 구하였다. 훈련 데이터 집합 중 입력 데이터 집합은 생체신호로부터 추출한 파라미터들을, 출력 데이터 집합은 코티솔 호르몬의 생성량으로부터 추정한 목표값을 사용하였다. 퍼지추론시스템으로 생체신호 파라미터들을 통합하고, 그 결과를 24 시간마다 구분하여 Cosinor 분석법을 적용하여 생체리듬의 변화를 관찰하였다. 생체리듬이 깨어진 정도에 의해서 만성적인 스트레스를 평가하였다. 생체신호 파라미터들을 퍼지추론으로 통합하고, 그 결과에서 생체리듬을 분석하여 스트레스 정도를 계산했다. 휴식기의 스트레스 정도를 l이라고 가정하면, 소음 스트레스를 받은지 14일째 되는 날에는 1.37. 7일간의 회복 후에는 1.47의 스트레스 정도가 나왔다. 즉, 쥐는 14일간의 소음으로 휴식 때보다 37% 증가된 스트레스를 받았고, 7일의 회복기를 통해 스트레스로부터 회복되지 않았다.

• Journal of Yeungnam Medical Science
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• 제28권1호
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• pp.45-53
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• 2011

Background: Increasing numbers of young people go to clubs. In Korea, however, no studies have been conducted regarding the exposure of club patrons to secondhand smoke. The present study was conducted to evaluate the degree of club customers' exposure to secondhand smoke. Methods: The study subjects included 10 male and 12 female non-smokers. The investigational site was a club located in Daegu. Urine samples were collected before exposure to secondhand smoke in the club and 6 hours after a 3-hour exposure. The urine cotinine levels were measured via the LC -MS/MS method. A survey was conducted to collect data regarding the subjects' smoking experiences and the degree of exposure to secondhand smoke in their daily lives. Results: The average urine cotinine level increased from 1.09 ${\mu}g/L$ to 5.55 ${\mu}g/L$ ($p$<0.05). No significant difference existed in the change in urine cotinine level between the male and female subjects. In addition, there was no significant difference in the change in urine cotinine level by the degree of exposure to secondhand smoke in daily life. Conclusions: The average urine cotinine level in all the subjects significantly increased after exposure to secondhand smoke. This is the first study on exposure to secondhand smoke in clubs; these results can be used to craft measures that reduce exposure to secondhand smoke in public places, such as clubs.

• Journal of Acupuncture Research
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• 제27권5호
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• pp.69-78
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• 2010

Objectives : To prove the effectiveness of acupuncture treatment targeting the insomnia-complaining patients from the group of hospital inpatients. Methods : Among Wonkwang University Iksan Oriental Medical Hospital impatients, needling Sinmaek($BL_{62}$) and Johae($KI_6$) and Venesection on Eunbaek(SP1) on the 15 insomnia-complaining patients. Then, confirmed the degree of insomnia symptom improvements through Saint's Mary Hospital(SMH) questionnaire, insomnia severity index(ISI), and Korean sleep scale(KSS). Results : 1. Result indicated after the acupuncture treatment, the total hours of sleeping increased in average per hour. 2. When evaluating the degree of improvement using Insomnia Severity Index(ISI) after the treatment, average score was lowered and the statistical data showed the result was significant. 3. When evaluating the degree of improvement using Korean Sleep Scale(KSS), the average score was increased and the statistical data showed the result was significant. Conclusions : Among the insomnia patients from the group of Oriental Medical Hospital inpatients, the total hours of sleeping increased, showed the score improvement by using the tool for evaluating sleeping, and indicated statistically significant treatment effectiveness.

• 재활간호학회지
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• 제7권1호
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• pp.15-23
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• 2004

The purpose of this study was to verify the effects of Yoga exercise as one way of the nursing intervention on stress and health status. This study was a quasi-experimental design with a non-equivalent control group pretest and posttest design. The study subjects were clinical nurses at K University hospital, in J city. Fifty one nurses were selected with 26 to a experimental group and 25 to a control group. The study data were collected from November, 2002 to January, 2003. During this period Yoga exercise was given to experimental group three times per week(one hour every time) for twelve weeks and no program was given to control group. The degree of general stress, job stress, health perception and health status was measured before and after experiment. The data were analyzed using SAS 8.1 program to obtain chi-square, paired, unpaired t-test. The results of this study are as follows. 1. After the experiment, the degree of general stress increased (t=-3.61, p=0.001) in experimental group, but in control group. There was significant difference between two groups (t=-2.10, p=0.041). However there was no significant difference in job stress between two groups and in each group (p=0.001), 2. After the experiment, the degree of health perception in experimental group increased (t=2.13, p=0.043) in control group. There was no significant difference between two groups. Health status in experimental group increased (t=3.14, 0.004) but in control group after the experiment. There was no significant difference between two groups. From the results, we are convinced that Yoga exercise is the nursing intervention that could decrease stress and promote health status in clinical nurses. Therefore Yoga exercise could be largely applied as one way of health care for nurses.

• 구강회복응용과학지
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• 제19권3호
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• pp.185-193
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• 2003

The object of this study is to observe the effects of magnetism on the osteoblasts using a neodymium magnet. The osteoblasts was cultured under magnetic fields of varying intensities to evaluate the effect of magnetism on the activity and alkaline phosphatase acitivty of the osteoblasts. Osteoblasts were cultured in the cell density of $10^4$ for the evaluation of cell proliferation and 105/ml for the evaluation of ALP activity under 0. 10, 100, 500, 1000, 2000, 4000 gauss for 24 hour. For evaluation of osteoblast morphologic changes under magnetic, osteoblasts were observed by inverted microscope and TEM. To elucidate if IGF-receptors are increased under the magnetic field, we investigated osteoblasts by immunofluoroscence staining. The results were as follows: In the varying intensities of magnetic fields, the degree of cell proliferation was the highest in the magnetic field of 10 gauss and this gradually decreased up to 1000 gauss. In the magnetic fields stronger than 1000 gauss, the degree of the cell proliferation decreased to an even lower level than that of the control group. The ALP activity and protein synthesis showed a similar increase pattern as the degree of cell proliferation compared to the control group but showed little difference. Under the microscope, morphological change of the cells ( decrease in length and increase in roundness) were observed but no peculiarity of cell distribution could be found according to the magnetic field line. In the proper intensity of magnetic fields (10 gauss), the cultured cells showed increase in number of IGF Receptors compared to that of the control group.

• Journal of Chest Surgery
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• 제2권2호
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• pp.155-166
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• 1969

Heterotopic abdominal homograft of canine heart was carried out in 20 pairs of dogs. Of these 12 cases were subjected as a control and 8 were subjected to immunosuppressive group. The dosage of immunosuppressive agent was 5mg/kg/day of Imuran [Azathioprine] for 3 days preoperatively, 10mg/kg on operative day and 5mg/kg/day postoperatively. For reducing the metabolic demand, the donor heart was preserved in 4degree heparinized saline solution for approximately I4 minutes. In the most of the cases, transplantation was performed with the technique of end-to-side aorto-aortic anastomosis and end-to-side pulmonary artery-inferior vena cava anastomosis at the infrarenal portion. Five out of 20 grafted dogs were survived more than one day. The longest survived 18 days in the control group and survive more than 60 days in the treated group. The survival cases were 3 out of 8[37. 5%] in the group of dogs treated with lmuran and 2`out of 12 [16.6%] in the group of non-treated. A prominent gross findings of the grafted heart was a minimal to moderate degree of dilatation of the heart with or without thrombosis in the cardiac chambers and/or anastomotic site. The case number 10, 15, and 19 showed moderate hypertrophy in grossly. The microscopic findings were as follows; 1. There were early hypersensitive histologic reactions such as interstitial edema, cellular infiltrations and early degenerative changes in the myocardium in the cases of 3 hour survival. 2. In the cases of more than 6 hours survival, organizing thrombosis of myocardial vessels, vasculitis,myocardial necrosis and lymphocyte, plasma cell, round cell infiltrations were noted. In the cases of more than 12 hours survival, the degree of these histologic changes especially in the non-treated group were more intensified than in the treated. 3. In the cases which survived more than one day, so called homograft specific histologic changes were milder in the immunosuppressive group compared with the control. 4. All the host hearts showed no evidence of pathologic findings histologically. Among the homologous canine cardiac transplantation tissue reaction, was milder and suvival time longer in the group treated with immunosuppressive drug.

• 한국대기환경학회지
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• 제14권4호
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• pp.321-332
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• 1998

Various meleorologlcal dada obtained by SODAR system in shoreline area surrounding Boryung power plant have been analysed to investigate atmospheric diffusibility. Important conclusion may be summarized as follows; (i) Stability classification scheme based on co (standard deviation of wind direction in degree for averaging time of 1 hour) appears to evaluate certain atmospheric velocity and : indicate horizontal mean wind speed. Thus different scheme for stability classification seems to be preferable in order to appropriately estimate lateral and vertical dispersion coefficients cy and cz, respectively. (ii) As a result of comparisons between 3 available schemes for estimating of mixing height, best one turned out to be the double height scheme where height corresponds to maximum cw.

• 한국응용과학기술학회지
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• 제17권1호
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• pp.49-53
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• 2000

For decompose carbon dioxide, manganese oxide was synthesized with $0.25M-MnSO_{4}{\cdot}nH_{2}O$ and 0.5M-NaOH by coprecipitation. We made magnetite deoxidized manganese oxide by hydrogen reduction for 1hour at $330^{\circ}C$. We investigated characteristics of catalyst, hydrogen reduction degree and decomposition rate of carbon dioxide. The structure of the hausmannite certified spinel type. The specific surface area of synthesized hausmannite and deoxidized hausmannite were $22.36m^{2}/g$, $33.56m^{2}/g$ respectively. The decomposition rate of $CO_{2}$ of deoxidized hausmannite was 57%.

• 한국막학회:학술대회논문집
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• 한국막학회 2004년도 추계 총회 및 학술발표회
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• pp.142-145
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• 2004

Anion-exchange porous hollow-fiber membranes with a thickness of about 1.2 mm and a pore size of about $0.30{\mu}m$ were used as a supporting matrix to immobilize cycloisomaltooligosaccharide glucanotransferase (CITase). CITase was immobilized to the membrane via anion-exchange adsorption and by subsequent enzymatic cross-linking with transglutaminase, the amount of which ranged from 3 to 110 mg per g of the membrane. The degree of enzyme multilayer binding was equivalent to 0.3 to 9.8. Dextran, as the substrate, was converted into seven- to nine-glucose-membered cycloisomaltooligosaccharides (CI-7, -8, and -9) at a maxi mum yield of $28\%$ in weight at a space velocity of 10 per hour during the permeation of $2.0(w/w)\%$ dextran solution across the CITase-immobilized porous hollow-fiber membrane.

• 기본간호학회지
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• 제15권1호
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• pp.45-52
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• 2008

Purpose: The purpose of this study was to examine the effects of balance taping for elders suffering from leg pain. Method: This study was a nonequivalent pretest-posttest design, quasi-experimental study. There were 25 elders in the experimental group and 25 in the control group. The degree of leg pain was measured three times. Results: In the experimental group, the leg pain score before taping was 6.28, but 1 hour after the taping was applied it was 3.24, and at 24 hours after the taping was applied, 2.16. The leg pain score for elders in the experimental group decreased significantly but for those in the control group, it hardly changed. Conclusion: The findings of this study support the conclusion that balance taping may benefit individuals with leg pain. Also, balance taping therapy can be used as an independent nursing intervention.