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전이암 환자의 예후 판단 인자로서 생체전기 임피던스 분석을 이용한 위상각의 역할
윤성수,윤성우,류한성,김은혜,이지영,Yoon, Sung-soo,Yoon, Seong-woo,Ryu, Han-sung,Kim, Eun-hye,Lee, Jee-young 대한한방내과학회 2018 大韓韓方內科學會誌 Vol.39 No.4
Objectives: The aim of this study was to identify the validity of phase angle as a prognostic factor for survival in patients with metastatic cancer. Methods: Data of patients with metastatic cancer who visited the Korean medicine cancer center at Kyung Hee University Hospital in Gangdong from April 2016 to February 2018 were collected for this study. The values of phase angle (PhA) and blood hemoglobin (Hb), C-reactive protein (CRP), and serum albumin levels were also investigated by bioelectrical impedance analysis (BIA). Results: In total, 86 patients were analyzed. The cut-off value of the phase angle was determined as 5.0. Univariate and multivariate analysis revealed that phase angle (HR 3.15, 95% CI 1.79-5.54) and CRP (HR 2.15, 95% CI 1.24-3.73) predicted survival with statistical significance. The median overall survival of the low PhA group ($PhA{\leq}5.0$) was 1.8 months (95% CI 0.6-2.9 months) and 7.2 months (95% CI 5.2-9.2 months) in the high PhA group (PhA>5.0)(p<0.001). Conclusions: The phase angle could be an independent prognostic factor for patients with metastatic cancer. Further research is required to confirm these findings and their correlation with other indexes.
논 생태계 서식 수서생물 채집 도구 개발: 유인제를 사 용한 수중트랩
윤성수,김명현,최순군,어진우,권순익,송영주 한국환경생물학회 2017 환경생물 : 환경생물학회지 Vol.35 No.4
The need for an efficient sampling technique to collect aquatic organisms has risen with the increase of interest in rice paddy fields, which have been recognized as important ecosystems supporting biodiversity. In the present study, a submerged funnel trap used with the assistance of attracting agents (fish meal and chemical light) was designed as an easy, objective and quantitative tool for collecting aquatic organisms in the rice paddy fields. The preference for collecting aquatic organisms as a means for attracting agents was analyzed using a generalized linear mixed model. Also, based on the data of previous research, we compared the community composition of the aquatic macroinvertebrates, which were collected using the quadrat method, and newly designed submerged funnel traps, by analyzing non-metric multidimensional scaling. The results showed that the catching efficiency of 18 of the total 65 taxa was affected by the attracting agents. 12 taxa including Pomacea canaliculata, Hippeutis cantori, Austropeplea ollula, Erpobdella lineata, Ostracoda spp. Branchinella kugenumaensis, Hydaticus grammicus, Rhantus pulverosus, Chironomidae spp., Rana nigromaculata, Cobitidae spp. etc., favored fish meal and 6 taxa including Ischnura asiatica, Coenagrionidae spp. Sternolophus rufipes etc., were attracted by chemical light. The submerged funnel trap used as a measurement tool for biodiversity was less applicable than the quadrat method; however, it was more effective for the selective collection of specific taxa. We expect that this newly designed trap can be a simple and quantitative method for collecting aquatic organisms, and could be used for long term and extensive surveys in rice paddy fields in the future. 생물다양성 측면에서 논 생태계의 중요성이 대두되면서 수서생물을 효율적으로 채집하는 방법이 요구되고 있다. 본 연구는 논 생태계 내에서 수서생물을 객관적이고 정량적으 로 쉽게 채집하기 위해 두 가지 유인제 (어분, 캐미라이트)를 활용한 수중트랩을 고안하였다. 고안된 트랩으로 채집된 수 서생물의 유인제 선호도는 일반화선형혼합모형을 통해 분 석되었다. 또한 선행연구의 데이터를 활용하여 방형구와 수 중트랩으로 채집된 수서 무척추동물의 군집 조성을 비계량 형다차원척도법을 통해 비교 분석하였다. 그 결과, 수중트랩 에 의해 채집된 65분류군의 수서생물 중 18분류군이 유인제 에 의해 채집효율이 달라지는 것을 확인하였다. 18분류군 중 왕우렁이, 수정또아리물달팽이, 애기물달팽이, 돌거머리, 패 충류, 풍년새우, 꼬마줄물방개, 애기물방개, 깔따구류, 참개구 리, 미꾸리류 등 12분류군은 어분을 선호하였고, 아시아실잠 자리, 실잠자리류, 깃동잠자리, 방물벌레, 검정배물벌레, 애물 땡땡이 등 6종은 캐미라이트를 선호하였다. 또한 수중트랩은 방형구법에 비해 생물다양성의 측정도구로서의 활용도는 낮지만 특정 분류군의 선택적인 채집에는 효과적이었다. 본 연 구에서 간단하고 정량적인 방법으로 수서생물을 채집할 수 있도록 고안된 트랩은 장기적이고 광범위한 논 수서생물 생 태 조사에 유용하게 활용될 수 있을 것으로 판단된다.
윤성수,이정재,배연정 한국농공학회 2002 한국농공학회논문집 Vol.44 No.4
The irrigation facilities are managed systematically and a facility is independent at the view of shape and function. The design of the irrigation facility is the formulated process with independent objectives. So its process is accordance to object-oriented concept. The design of irrigation facilities is classified into several steps. In these steps, the design data is made and the various problems are solved and consolidated with analysis and decision. In order to achieve our goal of constructing an efficient integrated design system, the results from the design should be able to be systematically connected and re-used. In the study, the design task of irrigation facility, the integrated design system for (IDSAF) is to be developed using the object- oriented methods, and then its applicability will be examined.