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Awareness of chronic obstructive pulmonary disease in current smokers: a nationwide survey
( So Yeong Mun ),( Yong Il Hwang ),( Joo Hee Kim ),( Sung Hoon Park ),( Seung Hun Jang ),( Jae Yong Seo ),( Ja Kyung Kim ),( Yong Bum Park ),( Jae Jung Shim ),( Ki Suck Jung ) 대한내과학회 2015 The Korean Journal of Internal Medicine Vol.30 No.2
Background/Aims: Cigarette smoking is the most common risk factor for chronic obstructive pulmonary disease (COPD). However, few studies of the attitudes toward COPD of smokers, the group at risk of developing this condition, have been conducted. The purpose of this study was to explore the awareness of and attitudes toward COPD of current smokers. Methods: The sample consisted of 502 individuals aged 45 and older from throughout Korea who smoked at least 10 packs of cigarettes per year. Telephone interviews using a structured questionnaire were conducted with respondents. Results: First, we evaluated the health status of subjects, finding that 45.4% considered themselves to be in good health. We also asked about COPD-related symptoms, and 60.6% of subjects reported such symptoms. However, only 1.2% of subjects had been diagnosed with or treated for COPD, only 0.4% spontaneously mentioned COPD as a respiratory disease, and only 26.5% recognized COPD as a respiratory disease after seeing a list of such diseases. Television ranked as the top source of information about COPD. The willingness of 45.0% of subjects to stop smoking increased after being informed about COPD. Conclusions: Despite having COPD-related symptoms, most smokers did not know that COPD is a respiratory disease. The attitudes of smokers toward COPD and smoking cessation varied according to socioeconomic status. In summary, a continuous effort to increase the awareness of COPD among smokers is needed. Additionally, strategies tailored according to different socioeconomic groups will also be necessary.
국소 진행된 직장암에서 근치적 절제술 후 방사선치료와 항암화학요법과의 병용치료에 대한 효과
강기문(Ki Mun Kang),최일봉(Ihl Bohng Choi),김인아(In Ah Kim),장지영(Jee Young Jang),신경섭(Kyung Sub Shinn),장석균(Suck Kyun Jang),이재학(Jae Hak Lee),김영하(Young Ha Kim),원종만(Chong Mann Won),최동환(Dong Hwan Choi),김진승(Jin Seun 대한방사선종양학회 1997 Radiation Oncology Journal Vol.15 No.2
목 적 : 국소 진행된 직장암 환자에서 근치적 절제술후 방사선치료와 항암화학요법과의 병용치료를 시행하여 치료에 따른 합병증, 국소재발 그리고 생존율에 대한 그 효과를 알아보고자 하였다. 방 법 : 1992년 9월부터 1995년 9월까지 직장암으로 진단받고 근치적 절제술후 방사선치료와 항암화학요법과의 병용치료를 받은 28명의 환자를 대상으로 하였다. 방사선치료는 근치적 절제술후 4주에서 6주이내에 시행하였으며 선형가속기 6MV와 15MV X-ray를 이용하여 주 5회, 1회 180cGy로 5-6주간 총조사선량은 5040cGy-5580cGy까지 조사하였다. 항암화학요법은 방사선치료 시작 1주와 5주째 처음 제1일부터 제4일까지 4일간 5-FU는 체표면적 m2당 400mg씩 그리고 Leucovorin은 체표면적 m2당 20mg씩을 정맥주사로 4주간격으로 2회 시행하였다. 추적관찰기관은 2개월에서 42개월이었으며 중앙값은 24개월이었다 결 과 : 전체환자의 2년 생존율과 무병생존율은 각각 78.6%, 70.8%였다. 병기에 있어 2년 생존율과 무병생존율은 B2+3에서는 93.0%와 79.4%, C2+ 3에서는 76.2%와 69.2%였다. 치료실패 양상은 국소재발이 10.7%(3/28), 원격전이가 3.6%(1/28), 국소재발과 원격전이가 동시에 발생한 경우는 7.1%(2/28)로 궁극적인 국소재발율이 17.9%(5/28)였다. 병기에 따른 국소재발율은 B2+3와 C2+3의 각각 13.3%(2/15)와 23.1%(3/13)였다. 치료에 따른 합병증으로는 방사선 피부염은 28.6%(8/28)로 가장 많이 발생하였고 혈액학적 부작용으로 백혈구감소증이 21.4%(6/28)에서 발생하였으나 보조적인 치료후 모두 회복되었고 치료와 관련되어 사망한 경우도 없었다. 생존율, 무병생존율과 국소재발율에 영향을 미치는 단변수분석에서는 조직학적 분화도에 있어 잘 분화된 선암이 분화도가 나쁜 선암보다 통계학적 유의성이 있었고(p=0.04, 0.05, 0.04) 그외에서는 초기병기일수록, 종양의 크기가 5cm 이하에서 좋은 결과를 보였지만 통계학적 유의성은 없었 다. 결 론 : 국소적으로 진행된 직장암의 경우 근치적 절제술후 방사선치료와 항암화학요법과의 병용치료가 비교적 안전하고 효과적인 방법이였다. 그러나 본 연구에서는 직장암이 국소적으로 진행된 대상환자의 수효가 적어 향후 좀 더 환자를 모으고 장기적인 추적 결과를 살펴보아야 근치적 절제술후 방사선치료와 항암화학요법과의 병용치료의 효율성을 보다 명확히 확인할 수 있으리라 생각된다. Purpose : To evaluate the effect of postoperative adjuvant radiation therapy and chemotherapy on the survival, pattern of failure and complication for locally advanced rectal carcinoma Materials and Methods : From October 1992 to September 1995, twenty eight patients with rectal carcinoma were treated by postoperative adjuvant radiation therapy and chemotherapy. Radiation therapy was delivered with 6MV and 15MV linear accelerator, 180cGy fractions 5 day per week. Total radiation doses were 5040cGy in B2 +3 and 5580cGy in C2+3. Within 4 weeks after radical surgery, 5-FU(400mg/m2/day) and Leucovorin(20mg/m2/day) were administered by intravenous injection for 4 days during the first and fifth week of radiation therapy. The median follow up was 19 months with a range 2 to 47 months. Results : The 2 year overall survival and disease free survival rates were 78.6% and 70.8%, respectively. The 2 year overall survival was 93.0% in B2+3 and 76.2% in C2+3(p=0.11). The 2 year disease free survival was 79.4% in B2+3 and 69.2% in C2+3(p=0.13). The overall failure rate was 21.4%(6/28) including 10.7%(3/28) locoregional recurrence, 3.6%(1/28) distant metastasis and 7.1%(2/28) locoregional recurrence with distant metastasis. The overall locoregional recurrence rate was 17.9%(5/28). The 2 year locoregional recurrence rates were 13.3%(2/15) and 23.1%(3/13) for respectively for B2+3 and C2+3. The difference between the locoregional recurrence of B2+3 and C2 +3 patients was not significant(p=0.07). Complications developed in 13 patients(46.4%), including 8 dermatitis, 7 loose stool, 6 leukopenia, 4 tenesmus, 2 diarrhea. In Univariate analysis, there was no statistically significant factor except for tumor grade in locoregional recurrence, disease free survival and overall survival rate(p=0.04, 0.05, 0.04). Conclusion : This study suggests that postoperative adjuvant radiation therapy and chemotherapy is effective in patients with locally advanced rectal cancer. Therefore these results need to be confirmed with a long term follow -up and larger number of patients with the further clinical trials including prospective controlled studies.
고성능 DSP를 이용한 모터, 엔코더 성능평가 시스템 개발
장문석,심재홍,이응혁,최상방,Jang, Mun-Suck,Shim, Jae-Hong,Lee, Enug-Hyuk,Choi, Sang-Bang 한국반도체디스플레이기술학회 2009 반도체디스플레이기술학회지 Vol.8 No.4
In robot operation, a motor with multi-degree of freedom motion control and an encoder for motor control are needed. To perform precise motion, location, and velocity control, the operation of motor and encoder with superior performance is important. In this paper, we studied performance evaluation system that can evaluate the performance of motor and encoder. The performance of motor and encoder can be evaluated in terms of disconnection check, signal variation count, and U, V, W signal check. Disconnection check verifies signal connection between a motor and an encoder, signal variation check verifies A, B signal by counting the number of signal A, B when a motor revolves, and U, V, W signal check verifies operating direction of a motor. The result is shown at graphic LCD integrated in system, and can be checked in PC with PC communication.
실내 환경에서 RFID와 초음파를 이용한 이동로봇의 위치 추정에 관한 연구
정기호(Ki-Ho Jung),장철웅(Chul-Woong Jang),강신혁(Shin-Hyuk Kang),이동광(Dong-Kwang Lee),염문진,장문석(Mun-Suck Jang),공정식(Jung-Shik Kong),권오상(Oh-Sang Kwon),이응혁(Eung-Hyeok Lee) 대한전기학회 2007 대한전기학회 학술대회 논문집 Vol.2007 No.10
In this paper we analyze whether recent Radio Frequence Identification technology can be used to improve the localization of mobile robot in their environment. This system make use of power control because Tag with Reader distance measurement. We are accurately the low at former time than the environment. A distance measurement is rather correct. This system used 900㎒ Frequencies.
권도익 ( Do Ik Kwon ),정순문 ( Sun Mun Jeong ),정장환 ( Jang Hwan Jung ),성설화 ( Seol Hwa Seong ),김준희 ( Joon Hee Kim ),박종빈 ( Jong Bin Park ),전영승 ( Young Seung Jeon ),서기석 ( Kee Suck Suh ),장민수 ( Min Soo Jang ) 대한피부과학회 2022 대한피부과학회지 Vol.60 No.5
Background: Lichenoid drug eruption (LDE) is a relatively rare form of cutaneous drug eruption and that resembles lichen planus on a clinical and histological basis. Although there are some studies on histopathological findings of LDE, studies on clinical findings of LDE are limited. Objective: To investigate the clinical and histopathologic findings and prognosis of LDE. Methods: We retrospectively investigated the clinicopathologic findings of LDE patients who visited Kosin University Gospel Hospital between 1990 and 2020. Results: This study included 44 LDE patients (male:female=1.4:1). The most common causative drug was anti-tuberculous drugs (52.3%), followed by 5-fluorouracil (11.4%), and captopril (9.1%). There were pruritic erythematous scaly or lichenoid patches and plaques in all cases. The most frequently involved sites were trunk and extremities. Notably, 15 cases (34.1%) involving the scalp and 3 cases (6.8%) involving the oral mucosa. Treatment modalities included oral, topical corticosteroid, and oral antihistamines. Among 44 cases, 28 patients discontinued the causative agent, and 16 patients continued to use it after diagnosis of LDE. The mean duration of treatment for patients who discontinued or did not discontinue the causative drugs was 4, 10 weeks, respectively. The most commonly observed histopathologic findings were superficial and deep perivascular infiltration of inflammatory cells (100.0%) and eosinophil infiltration (93.2%). Conclusion: LDE can be differentiated from idiopathic lichen planus by clinicopathologic findings. LDE appears to be a mild form of drug eruption in which symptoms can be controlled with conservative treatment, even without the cessation of causative drugs for the treatment of the underlying disease. (Korean J Dermatol 2022;60(5):275∼283)
벡터 연산 SIMD 그래픽 프로세서를 위한 멀티포트 레지스터 파일 설계
김경섭(Kyeong-Seob Kim),장문석(Mun-Suck Jang),윤완오(Wan-Oh Yun),최상방(Sang-Bang Choi) 대한전자공학회 2007 대한전자공학회 학술대회 Vol.2007 No.7
In this paper, we design multi-port register file for vectorized SIMD graphic processor that is used for 3D graphic processing. The number of registers in the register file is 318*4 and each register can store 32 bit single precision floating point data with IEEE-754 format. Because of memory block using 1-read and 1-write ports in Xilinx-4, we derive enhanced memory block using XOR and replicate it The implementation result for Virtex-4 shows that our register file operates above 50㎒ clock frequency and consumes 4894 slices.
A Study on Mobile Gait Rehabilitation Training Robots
Eom, Su Hong,Lee, Won Young,Jang, Mun Suck,Lee, Eung Hyuk Trans Tech Publications, Ltd. 2014 Applied Mechanics and Materials Vol.619 No.-
<P>The falling off of body functions occurs gait disturbances as the human body is aged. Rehabilitation training is needed for overcoming such gait disturbances and the training can be achieved through repetitive training. Recent robot-assisted rehabilitation training has been usually performed in indoors and training speed is to be passively selected. Thus, in this study a training method that implements mobile gait rehabilitation training and varies training speed intellectually is proposed. The proposed method estimates gait intentions and information in training subjects and that is used in determining training speed.</P>