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만성두통 환자의 성격유형 A 행태, 스트레스, 우울 및 두통영향정도의 관계 연구
차남현,임사비나,정인태,김수영,안경애,김건식,이재동,이상훈,최도영,이윤호,이두익 EAST-WEST MEDICAL RESEARCH INSTITUTE KYUNG HEE UNI 2005 東西醫學硏究所 論文集 Vol.2005 No.-
To examine an estimate factor and grasp the relation of difference for Ype A Behavior Pattern(TABP), Perceived Stress Questionnaire. Depression and HIT-6 in the Chronic headache client. Method: Data collected by self-reported questionnaires from 38 client in S city who were selected by criteria of IHS, from the 19^(th) of October to 10^(th) of December, 2004. Result: 1) Differences between biographical data by TABP was significant by SaSang constitutions, by Stress was significantly influenced by age, and by Depression were significantly influenced health status and SaSang constitutions. 2) Correlations Coefficients among Study Variables were Stress and Depression(r=.494, p=.002) and Depression and HIT-6(r=.432, p=.010). 3) In regression analysis, HIT-6 were significantly influenced by Depression and Type A Behavior Pattern(TABP). These variables explained 38% and 34% respectively. Conclusion: The result suggest that chronic headache management with psychological aspect, as well as physical aspect should be a focus to enhance the quality of life.
차경환,박수홍,송도훈,이채봉 東西大學校 1999 동서논문집 Vol.5 No.-
본 연구에서는 원격 화상회의 시스템 등에서 Camera를 자동적으로 제어하기 위해 화자의 음성신호를 4개의 마이크폰 배열(Microphone Array)로 수음하여 그 신호에 의해 화자의 위치를 추정한다. 마이크로폰으로 수음한 음성신호의 TDE(Time Delay Estimation)를 계산할때 그 연산량을 감소시키기 위해 AMDF알고리즘을 사용한다. 각 마이크로폰 출력신호에 대해 amdf 알고리즘으로 시가니연을 구하고 DOA(Direction of Arrival)를 계산한다. 다양한 조건하에서 음성신호로 실험한 결과, AMDF 알고리즘을 이용한 화자위치 추정의 정확도가 기존의 cross-correlation 방법에 비해서 우수한 성능을 나타내었다. This paper decribes the estimation of speech source using four microphones array singnal for the automatic control caramera position in the teleconference system. To reduce the calculation rate, AMDF algorithm is empoloyed for the TDE(Time delay Estimation) of the speech signal with microphone. The time delay is calculated using AMDF algorithm of each microphone output signal and DOA is obatained. According to the estimation of speech source in speech signal/아/under various conditions. AMDF-technique-based method yields superier performance to the one with cross-correlation method.
정인태,이상훈,김수영,차남현,김건식,이두익,이재동,임사비나,이윤호,최도영 EAST-WEST MEDICAL RESEARCH INSTITUTE KYUNG HEE UNI 2005 東西醫學硏究所 論文集 Vol.2005 No.-
Objective : Because the cause and etiology of chronic headache are not yet fully explained, the treatment of this symptom is not simple. In order to study the effectiveness East-West pain treatment on chronic headache, we evaluated its effect of pain alleviation and quality of life improvement on chronic headache patients who were treated with nerve block and acupuncture, and only acupuncture for eight weeks. Methods : 92 clinical experiment participants were gathered and through a questionnaire patients who experienced headache for more than 4 hours a day and more than 15 days per month were qualified as chronic headache patients. The qualified patients were classified into two groups, nerve block and acupuncture group(EW group, n=49) and acupuncture group(E group, n=43). Treatment was applied 2 times a weeks for 8 weeks. The acupoints, GV20, HN23, ST8, HN46, TE17, GB20, LI20, LI11, LI14, ST36, and LR3 were stimulated for 20 minutes. The effects of two groups were analyzed using VAS scores and BPI(Brief Pain Inventory). Results : The VAS and BPI after four weeks of treatment showed significant improvement among two but differences between the three groups was statistically insignificant. The VAS and BPI of the EW group after eight weeks of treatment showed statistically significant improvement compared to the other two groups. Conclusion : The pain treatment for chronic headache might be contributed to improvement of quality of life as well as alleviation of pain of chronic headache patients. It was suggested that the West pain treatment in combination with East pain treatment might be an useful modality to improve the pain and quality of life in chronic headache patients.
정인태,이상훈,김수영,차남현,김건식,이두익,이재동,임사비나,이윤호,최도영 EAST-WEST MEDICAL RESEARCH INSTITUTE KYUNG HEE UNI 2005 東西醫學硏究所 論文集 Vol.2005 No.-
Objective : The purpose of this study was to assess the effect of acupuncture treatment for chronic headache patients using power spectrum analysis of the heart rate variability(HRV). Methods : 15 clinical experiment participants were gathered and through a questionnaire patients who experienced headache for more than 4 hours a day and more than 15 days per month were qualified as Chronic Headache patients. Treatment was applied 2 times a weeks for 8 weeks. The acupoints, GV20, HN23, ST8, HN46, TE17, GB20, LI20, LI11, LI14, ST36, and LR3 were stimulated for 20 minutes. The effects of acupuncture treatment were analyzed using power spectrum analysis of the HRV, HRV was recorded before and after acupuncture treatment. Results : HRV before and after treatment was compared after 8 weeks of acupuncture treatment. Increase in mean values of SDNN and RMSSD were observed but the increases were not statistically significants. Increase in mean values of TP, LF and HF were observed but, the increase was significant(p<0.05) only in TP. Conclusions : The results suggest that acupuncture treatment on chronic headache patients can increase the activity of autonomic nervous system. Further use of HRV for quantitative analysis of acupuncture treatment on autonomic nervous system related symptoms is suggested.
Cha, Gook Chan,Lee, Sukmin,Song, Jeom Sik,Kim, Jong Kwon,Kim, Kyung Hoon,Mun, Mu Seong,Youn, Hyoung Soon,Pyun, Do Gi,Choi, Yoon So Wiley Subscription Services, Inc., A Wiley Company 2006 Journal of applied polymer science Vol.100 No.4
<P>The purpose of this study is to prepare new polyurethane gels that can be used as stress- or pressure-distributing materials, particularly by being combined with selective plasticizers for medical or clinical applications. Because low-molecular-weight plasticizer molecules in polymer gels intrinsically tend to migrate to the surface of the gels by the so-called entropy effect in polymer miscibility, the stress-distributing function may decrease gradually after a certain amount of time. Correspondingly, both the chemical nature of the plasticizer and polymer gels and the compatibility between the polymer segments and plasticizer should be deliberately considered as important factors in determining the thermophysical properties and stress-distributing performance of polymer gels. New polyurethane gels comprising separated phases of soft and hard segments, the glass-transition temperature of which was around the ambient temperature, were prepared, and selective plasticizers were combined to obtain an optimized formulation of gels for stress-relieving properties. The glassy-to-rubbery transition of semicrystalline hard segments occurring around the ambient temperature caused the rearrangement of chain conformations, leading to the reduction of the pressure applied to the surface; this indicated that the pressure buildup or loss was somewhat related to the heat regulation by thermal absorption and release in the phase-transition range. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 100: 2750–2758, 2006</P>
Cha, Ji-Yun,Jeon, Yong-Deok,Xin, Mingjie,Kim, Do-Kuk,Lee, Hoon-Yeon,Kim, Bo-Ram,Hwang, Sung-Woo,Kim, Dae-Ki,Jin, Jong-Sik,Lee, Young-Mi Informa UK (TaylorFrancis) 2017 Bioscience, Biotechnology, and Biochemistry Vol.81 No.11
<P>The aim of this study is to examine the anti-inflammatory effect of Euphorbia supina (ES) ethanol extract in dextran sulfate sodium (DSS)-induced experimental colitis model. ES was per orally administered at different doses of 4 or 20 mg/kg body weight with 5% DSS in drinking water for 7 days. Twenty mg/kg of ES administration regulated body weight decrease, recovered colon length shortening, and increased disease activity index score and myeloperoxidase level in DSS-induced colitis. Histological features showed that 20 mg/kg of ES administration suppressed edema, mucosal damage, and the loss of crypts induced by DSS. Furthermore, ES suppressed the expressions of COX-2, iNOS, NF-kB, IkBa, pIkBa in colon tissue. These findings demonstrated a possible effect of amelioration of ulcerative colitis and could be clinically applied.</P>
Cha, Jae Myung,Suh, Mina,Kwak, Min Seob,Sung, Na Young,Choi, Kui Son,Park, Boyoung,Jun, Jae Kwan,Hwang, Sang-Hyun,Lee, Do-Hoon,Kim, Byung Chang,Lee, You Kyoung,Han, Dong Soo American College of Gastroenterology 2018 The American journal of gastroenterology Vol.113 No.4
<P>CONCLUSIONS: The positivity rate of FIT was lower in the summer, and the performance of the FIT screening program was influenced by seasonal variations in Korea. These results suggest that more efforts to reduce interval cancer during the summer are needed in population-based screening programs using FIT, particularly in countries with high ambient temperatures.</P>
Cha, Yong-Ho,Ko, Kwang-Hoon,Lim, Gwon,Han, Jae-Min,Park, Hyun-Min,Kim, Taek-Soo,Jeong, Do-Young The Optical Society 2010 Applied Optics Vol.49 No.9
<P>We have generated continuous-wave single-frequency 1.5 W 378 nm radiation by frequency doubling a high-power Ti:sapphire laser in an external enhancement cavity. An LBO crystal that is Brewster-cut and antireflection coated on both ends is used for a long-term stable frequency doubling. By optimizing the input coupler's reflectivity, we could generate 1.5 W 378 nm radiation from a 5 W 756 nm Ti:sapphire laser. According to our knowledge, this is the highest CW frequency-doubled power of a Ti:sapphire laser.</P>