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본태성 진전 환자의 검지에서의 자세성 진전에 대한 감각자극 효과
이상기,김지원,권유리,이영재,이정환,엄광문,권도영,이찬녕,서유미,김미경,박건우,정호춘,Lee, S.K.,Kim, J.W.,Kwon, Y.R.,Lee, Y.J.,Lee, J.H.,Eom, G.M.,Kwon, D.Y.,Lee, C.N.,Seo, Y.M.,Kim, M.K.,Park, K.W.,Jeong, H.C.,Manto, M. 대한의용생체공학회 2013 의공학회지 Vol.34 No.3
The essential tremor is an involuntary oscillatory movement of body parts. Conventional treatments of essential tremor have little effects in some patients and also leads to significant side effects. Alternative to these treatments, sensory stimulation may have beneficial effects on the essential tremor. The purpose of this study was to analyze an effect of sensory stimulation on essential tremor. Ten patients with essential tremor ($67.4{\pm}8.82$ yrs, 5 men and 5 women) participated in this study. Three-axis gyro sensors were attached on index finger, hand and forearm of patients. Task of 'arms outstretched forward' was performed with and without sensory stimulation. Vectorsum of three dimensional angular velocities (pitch, roll, yaw) was calculated. Outcome measures included root-meansquare (RMS) mean of the vector-sum amplitude, total power, peak power and peak frequency. RMS amplitude, total power and peak power were reduced by sensory stimulation (p < 0.05). Peak frequency was not affected by sensory stimulation. The results indicate that the sensory stimulation is useful to suppress the essential tremor.
이상기,이정민,Lee Sangkhee,Lee Jungmin 부경대학교 인문사회과학연구소 2015 인문사회과학연구 Vol.16 No.2
본 연구는 ‘미디어 폭력’과 관련된 국내의 전반적인 연구경향을 파악해 보고자 했다. 1991년부터 20014년까지 38개의 학술지에서 66개의 논문을 분석대상으로 삼아 메타분석을 하였다. 분석결과 미디어 폭력을 다루는 논문들은 사회과학의 영역에서 가장 많이 나온 것으로 확인 되었다. 연구 주제는 크게 ‘미디어 폭력자체’와 ‘미디어 폭력의 효과 및 영향’ 두 줄기의 흐름으로 이어져 왔다. 새로운 매체는 새로운 미디어 폭력의 유형이 생산된다고 간주되었으며, 미디어 폭력 연구의 지형도 미디어에 따라 변해왔다. 미디어가 늘어난 만큼 미디어 폭력 연구 또한 증가하는 경향을 보였다. 그렇지만 미디어 폭력의 인과관계를 설명하는 부분은 공통된 결론을 찾을 수 없었다. 이러한 이유는 첫째, 청소년에 치중되어 있는 연구 대상의 제한, 둘째, 실제 폭력 측정의 제한, 셋째, 측정에 있어 윤리적인 문제, 넷째, 매체의 특성이 다른 점, 다섯째, 개인 성향 및 다양한 환경 문제로 보인다. 이러한 점에서 미디어 폭력에 대한 학제간 연구의 필요성이 요구된다. This research aims at understanding the overall trend of domestic research related to media violence in Korea. From 1991 to 2014 in 38 scholarly journals, meta-analysis was employed to analyze 66 articles. The result shows that the articles dealing with the analysis of media violence came mostly from the social sciences field. The research topics are largely about “media violence” itself. Also the effectiveness and impact of media violence has led to two streams of ideas. New media is also considered to produce new form of media violence. So the focus of research on media violence has changed according to which type of media is involved. As the media has increased, media violence studies also tended to increase. However, a common ground has not been found in explaining the relationships that can be found between causes and effects of media violence. The reasons are; (1) limits the focus of the studies on the youths, (2) limits the studies to survey of actual violence, (3) ethical issues involved in survey, (4) the particular characteristics of each medium, (5) personal dispositions and other environmentally induced problems. Taking all these into consideration brings to fore the importance of this interdisciplinary approach to the study of media violence.
당뇨로 인한 우측(右側 ) 족저부(足底部) 및 좌수지(左手指) 궤양(潰瘍)을 동반한 환자 치험 1 예
이상기,이경로,송정모,Lee, Sang-Gi,Lee, Kyung-Lo,Song, Jeong-Mo 사상체질의학회 2004 사상체질의학회지 Vol.16 No.3
1. Objectives Besides Diabetes Mellitus, its complications are matter of concerns as well. Its following complications are cardiovascular disease, glomerulopathy, retinopathy, neuropathy and diabetic gangrene. These complications can cause overall damage in major organs. In traditional oriental medicine it has been perceived that gangrene is mainly caused by "hwa(火)" but under sasang constitutional medicine its has been diagnosed as Taeumin superficial-disease(太陰人 表病) and Taeumin Jowiseungchung-tang(調胃升淸湯) was prescribed. As a result, significal improvments was noted and thefore we report the outcome. 2. Methods We have given Taeumin Jowiseungchung-tang(太陰人 調胃升淸湯) to a patient for treating diabetes complications. 3. Results This patient was treated with Sasang Constitional Medicine and acupuncture for about three weeks. After treatment, ulcer and whole body edema were improved considerbly. 4. Conclusions We have dianosed the patient as Taeumin superficial-disease(太陰人 表病) by undergoing several diagnostic method used in sasang constutional medicine. Therefore we have given Taeumin Jowiseungchung-tang(太陰人 調胃升淸湯) to the patient and has obtained satisfactory results in curing several diabetic complications especially ulcer due to diabetes.
M/E<sub>n</sub>/1 대기모형에서 얼랑분포의 성질을 이용한 오버슛의 분포에 대한 근사
이상기,배종호,Lee, Sang-Gi,Bae, Jongho 한국통계학회 2015 응용통계연구 Vol.28 No.1
본 논문은 $M/E_n/1$ 대기모형에서 작업부하량과정의 오버슛의 분포함수에 대한 근사식을 제안한다. 오버슛이란 작업부하량과정이 미리 정해진 한계점을 처음으로 초과할 때 초과하는 양을 말하는데 정확한 분포함수는 수학적인 표현으로만 얻어졌을 뿐 분포함수를 실제로 계산하는 것은 거의 불가능하다. 그래서 기존 연구에서는 오버슛에 관한 몇가지 성질을 이용하여 오버슛의 분포함수에 대한 근사식이 구해졌다. 본 논문은 고객의 서비스시간의 분포가 얼랑분포라는 점을 활용하여 기존에 얻어진 근사식보다 더 정확한 근사식을 제안한다. 그리고 제안한 근사식이 얼마나 참값에 가까운지 판단하기 위하여 시뮬레이션을 통하여 얻어진 오버슛의 분포함수와 비교한다. We consider an $M/E_n/1$ queueing model where customers arrive at a facility with a single server according to a Poisson process with customer service times assumed to be independent and identically distributed with Erlang distribution. We concentrate on the overshoot of the workload process in the queue. The overshoot means the excess over a threshold at the moment where the workload process exceeds the threshold. The approximation of the distribution of the overshoot was proposed by Bae et al. (2011); however, but the accuracy of the approximation was unsatisfactory. We derive an advanced approximation using the property of the Erlang distribution. Finally the newly proposed approximation is compared with the results of the previous study.