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여성암환자의 운동프로그램 운영 및 참여경험에 관한 사례연구
정재연(Jae Youn Chung),안기용(Ki Yong Ann),박지혜(Ji Hye Park),이동훈(Dong Hun Lee),나루세마사요(Masayo Naruse),추상희(Sang Hui Chu),전용관(Justin Y. Jeon) 한국생활환경학회 2011 한국생활환경학회지 Vol.18 No.1
The purpose of this study is to investigate the subjective experiences of exercise instructors and participants in a 4 weeks exercise program for female cancer patients on treatment. This case study offers important background informations for future studies of developing exercise programs for cancer patients. Cancer patients in the Y university hospital attended the health clinic offering resistance training (core exercise) and aerobic exercise (line dance). Case study, a kind of qualitative study method, was performed in order to investigate the characteristics of this health clinic program. This program could bring high satisfaction, because it was held in the hospital, nurses cared patients during the program and patients could enjoy the program together. Especially, In a reality that patients could only participate in walking, exercise instructors and peers sharing same cancer worked as an important motivation to participate in the exercise. Moreover, we could help patients get confidence to overwhelm their cancer by offering self-leading exercise program. This confidence brought not only mental, but also physical improvements. As a result, patients could realize the importance of exercise and keep on exercise by themselves after this program. Health clinic program impressed on cancer patients the importance and the effectiveness of exercise. Moreover, this program motivated inactive cancer patients to start on exercise.
정재연(Jae Youn Chung),안기용(Ki Yong Ann),이동훈(Dong Hun Lee),나루세마사요(Masayo Naruse),손유나(Yu Na Son),이지원(Ji Won Lee),추상희(Sang Hui Chu),전용관(Justin Y. Jeon),김남규(Nam Kyu Kim) 한국생활환경학회 2011 한국생활환경학회지 Vol.18 No.1
The purpose of this study was to investigate the level of physical activity participation and attitude toward exercise among people with colorectal cancer. A total of 303(±) patients, diagnosed with colorectal cancer, were recruited for our study. Each patient was given a structured interview in S hospital between July and September, 2010. The result indicated that 75.4% of the patients believed that exercise is helpful for the prevention and recurrence of colorectal cancer. However, only 35% of patients participated in more than 18 MET-hours per week of physical activity, the amount known to be beneficial for cancer recurrence and increase the survival. The level of physical activity participation increased significantly after patients were diagnosed with colorectal cancer. In addition, subjects participated in more of moderate and high intensity physical activity after the completion of cancer treatment compare to the level of physical activity participation during cancer treatment (p<0.05). 64.8% of patients were willing to participate in some kind of physical activity program. The survey showed that 34.7% of patients wanted to participate in walking exercise, 80.3% preferred to exercise more than 30 minutes, 49% preferred to exercise 3 times in a week. In conclusion, colon cancer patients had a positive attitude about physical activity and exercise. After colon cancer diagnosis, participation of physical activity were increased among colorectal cancer patients, however, higher amount of physical activity is required to have preventive effects of cancer recurrence.
저체온치료를 받은 병원전 심정지 환자에서 비정상 이산화탄소분압과 예후와의 관계
정다원,이병국,정경운,정용훈,이성민,이동훈,송경환,허탁,민용일 대한응급의학회 2014 대한응급의학회지 Vol.25 No.5
Purpose: There is a lack of clinical evidence in terms of theassociation between carbon dioxide tension and outcomes incardiac arrest survivors treated with therapeutic hypothermia(TH). We investigated the association of time-weighted meancarbon dioxide tension (TWMCO2) and outcomes in out-ofhospitalcardiac arrest (OHCA) survivors treated with TH. Methods: This was a retrospective cohort study including177 OHCA survivors. The patients were divided into threegroups according to the values of TWMCO2 (normocarbia,35~45 mmHg; hypocarbia, <35 mmHg; hypercarbia, >45mmHg). The primary outcome was in-hospital mortality andthe secondary outcome was neurologic outcome at discharge. We assessed neurologic outcome at hospital dischargeusing the Cerebral Performance Categories (CPC). Neurologic outcome was dichotomized as either good neurologicoutcome (CPC1 and CPC2) or poor neurologic outcome(CPC 3 to 5). The odds ratio with 95% confidenceinterval (CI) was estimated. Results: The median value of PaCO2 was 38.2 (33.9-43.3)mmHg. Among a total of 1,239 PaCO2 values, normocarbia,hypocarbia, and hypercarbia were 618 (49.8%), 380(30.7%), and 241 (19.5%), respectively. Results of univariatelogistic regression analysis showed that hypocarbia hada significantly high odds ratio for in-hospital mortality (2.474(95% CI, 1.129-5.424), p=0.024) compared with normocarbia. Results of multivariate logistic regression analysisshowed that hypocarbia (2.926; 95% CI, 1.212-7.066; p=0.017) and hypercarbia (4.673; 95% CI, 1.348-16.205; p=0.015) had a significantly high odds ratio for in-hospital mortalitycompared with normocarbia. Conclusion: In OHCA survivors treated with TH, dyscarbia(hypocarbia and hypercarbia) was frequent and dyscarbiashowed an association with in-hospital mortality.
이동훈(Dong-Hun Lee),김종순(Jong-Soon Kim),정재현(Jae-Hyun Jeong) 한국마린엔지니어링학회 2003 한국마린엔지니어링학회 학술대회 논문집 Vol.2003 No.-
The cylinder liner is one of the important component of marine diesel engine. In this paper, microscopic analysis of cylinder liner materials and some experiments of precision honing conditions is presented. In this study, we observed the relation between honing condition, such as honing speed, honing depth and honing amount, and hard phase in cylinder liner honing by GC type honing stone
직접개미산 연료전지용 전해질막으로서 sPAES 막과 sPEEK 막의 특성
정재현 ( Jae Hyeon Jeong ),송명현 ( Myung Hyun Song ),정회범 ( Hoi Bum Chung ),이무석 ( Moo Seok Lee ),이동훈 ( Dong Hoon Lee ),추천호 ( Cheun Ho Chu ),나일채 ( Il Chai Na ),박권필 ( Kwon Pil Park ) 한국화학공학회 2015 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.53 No.6
최근에 직접 액체 연료전지 중에서 직접 개미산 연료전지(Direct Formic Acid Fuel Cells, DFAFC)가 활발히 연구되고 있다. 불소계막을 대신할 저가의 탄화수소막이 DFAFC막으로 주목받고 있다. 본 연구에서는 sulfonated poly(etherether ketone ketone, sPEEK)막과 Poly(arylene ether sulfone)(PAES)막을 사용해 Nafion 막과 그 특성을 DFAFC 조건에서 비교하였다. 탄화수소계막의 개미산 투과 전류밀도가 240~250mA/cm2로 불소계인 Nafion 211 막의 600mA/cm2보다 낮았다. sPEEK MEA(Membrane and Electrode Assembly)와 Nafion 211 MEA의 막 저항이 서로 비슷해 I-V 성능도 거의 같았다. 개미산 투과도가 낮은 sPEEK MEA가 Nafion 211 MEA보다 안정함을 보였다. Recently, direct formic acid fuel cells (DFAFC) among direct liquid fuel cells is studied actively. Economical hydrocarbon membranes alternative to fluorinated membranes for DFAFC``s membrane are receiving attention. In this study, characteristics of sulfonated poly(ether ether ketone, sPEEK) and sulfonated poly(arylene ether sulfone, PAES) membranes were compared with Nafion membrane at DFAFC operation condition. Formic acid crossover current density of hydrocarbon membranes were lower than that of Nafion 211 fluorinated membrane. I-V performance of sPEEK MEA(Membrane and Electrode Assembly) was similar to that of Nafion 211 MEA due to similar membrane resistance each other. sPEEK MEA with low formic acid crossover showed higher stability compared with Nafion 211 MEA.