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이혜진,고예정,한승우,Lee, Hae Jin,Ko, Ye Jung,Han, Seung Woo 한국데이터정보과학회 2016 한국데이터정보과학회지 Vol.27 No.4
본 연구는 간호대학생의 유머감각, 스트레스 및 우울 정도를 파악하고 유머감각, 스트레스 및 우울과의 관계를 규명하기 위한 서술적 상관관계 연구이다. 연구대상자는 K시 소재의 대학교 간호학과에 재학 중인 대학생 227명을 대상으로 설문지로 측정하였으며 수집된 자료는 IBM SPSS Statistics 21.0을 사용하여 통계분석 하였다. 본 연구에서 간호대학생의 유머감각은 $79.63{\pm}8.96$, 생활차원 스트레스는 $2.70{\pm}0.62$, 임상스트레스는 $2.52{\pm}0.67$, 그리고 우울은 $17.05{\pm}8.90$이었다. 간호대학생의 유머감각은 생활스트레스 (r=-.237, p=.001), 임상스트레스 (r=-.182, p=.007), 그리고 우울 (r=-.238, p<.001)에서 모두 유의한 부적 상관관계를 나타냈다. 따라서 이러한 연구결과를 통해 간호 대학생의 유머감각이 스트레스와 우울에 관련이 있는 것으로 나타났다. This study was performed to identify the relationship between sense of humor, stress, and depression in the nursing students. Data were collected from the 20th of June to the 30th of June in 2015 from 227 nursing students in K university. The collected data were analyzed using frequency, percentage, average, standard deviation, independent t-test, one-way ANOVA, kruscal-walis, pearson, spearman, and rank correlation coefficient. The result shows the sense of humor was significantly different between grade (t=-3.814, p <.001) and major satisfaction (${\chi}^2=12.070$, p=.007). The sense of humor was negatively correlated with living stress (r=-.237, p=.001), clinical based stress (r=-.182, p=.007), and with depression (r=-.238, p<.001). This data suggests that sense of humor is relevant in reducing the living stress and clinical based stress. These findings can provide the basis for the development of nursing intervention to increase the ability to cope with stress and depression.
초음파 처리 조건에 따른 집락형 유해남조류 Microcystis 세포수 변화 연구
이혜진 ( Hae-jin Lee ),박혜경 ( Hae-kyung Park ),허준 ( Jun Heo ),이현제 ( Hyeon-je Lee ),홍동균 ( Dong-gyun Hong ) 한국물환경학회(구 한국수질보전학회) 2018 한국물환경학회지 Vol.34 No.2
It is difficult to count colonial cyanobacteria Microcystis cells since the thickness of colonies is constrained by amorphous mucilage, making it impossible to estimate the number of cells. Disaggregation of Microcystis colonies into single cell is needed to improve the accuracy and precision of cell density estimation of naturally collected samples. Uultrasonic treatment method is commonly used owing to the simplicity and immediacy of the procedure. However, amplitude, frequency, and duration of ultrasonic treatment also cause cell loss during the experiment. Optimal ultrasonic treatment has not been standardized yet. Therefore, the objective of this study was to investigate optimal ultrasonic treatment by analyzing cell density and colony numbers. We collected colonial Microcystis from Changnyeong-Haman weir area in Nakdong River during harmful algal boom period from September to October in 2017. Ultrasonic treatment method was applied to disrupt colonies into single cells to enumerate cell density. Among treatment conditions, results from continuously treated for 100 seconds were found to be the optimum to reduce colonies to a suspension of single cell without cell losses under high and low density of Microcystis cells. Lugol iodine fixed cells followed by sonication showed less negative impact of cell damage within the optimal treatment time (100 seconds). Furthermore, disaggregated cells treated by sonication enables microscopic observation more easily since gas vacuoles were collapsed to facilitate sedimentation of cells under the counting chamber for quantitative enumeration of buoyant Microcystis cells.
이혜진 ( Hae-jin Lee ),박혜경 ( Hae-kyung Park ),이재학 ( Jae Hak Lee ),박아름 ( A Reum Park ),천세억 ( Se-uk Cheon ) 한국물환경학회(구 한국수질보전학회) 2016 한국물환경학회지 Vol.32 No.3
The aim of this study was to analyze spatial and temporal patterns of bacterial pollution levels and the relationship between bacterial pollutants and environmental parameters at the main stream and tributaries of Nakdong River. Water quality data including total coliform and fecal coliform were compiled from a total of 50 monitoring sites (30 at the main stream and 20 at the tributaries) along with rainfall and discharge data for three consecutive years from 2012 to 2014. During the study periods, the geometric mean values of total coliforms and fecal coliforms in the main stream were 74 (22~465) CFU/100 mL and 8 (3~42) CFU/100 mL, respectively. The geometric mean values of total coliforms and fecal coliforms in the tributaries were 275 (36~5,145) CFU/100 mL and 6 (1~1,352) CFU/100 mL, respectively. High concentrations of fecal coliforms were observed at Gumi (M 10), Hyeonpung (M 19), Hapcheon (M 23), and Namji (M 25) in the main stream, whereas Gamcheon (T 6), Bakcheon (T 7), Geumho-gang (T 8), and Gyeseongcheon (T 16) were identified as pollution hot spots in the tributaries. Although bacterial pollution levels showed complex behavior across monitoring sites and time, the highest coliform concentrations were routinely observed in the monsoon season between July and September of each year, indicating that the pollution levels were strongly dependent on precipitation in addition to other physiochemical parameters. Statistically significant correlations were found between fecal coliform concentrations and precipitation (r=0.403, p<0.01), followed by SS (r=0.425, p<0.01), nutrient TP (r=0.388, p<0.01), organic matter COD (r=0.322, p<0.01), and PO4-P (r=0.317, p<0.01) in the main stream in the order of correlation coefficient from high to low.
이혜진(Hae-Jin Lee),이상근(Sang-Keun Lee) 한국정보기술학회 2011 Proceedings of KIIT Conference Vol.2011 No.5
생명연구자원은 막대한 부가가치 창출이 가능하고, 바이오경제를 지원하는 미래자원으로서의 무한한 가치를 지녔다. 전 세계적으로 국가적인 관심과 중요성이 크게 부각되고 있는 생명연구자원의 활용성을 높이기 위해서는 기본재료가 되는 실물과 관련 정보들을 체계적으로 관리하여야 한다. 현재 생명연구자원의 정보는 대부분 파일형태로 관리하고 있어 정보 소실이나 정보의 부정확성이 유발된다. 이에 본 논문에서는 소재관리 프로세스와 정보를 표준화하여 생명연구자원의 수명주기 및 관련 정보들을 체계적으로 관리할 수 있는 통합 소재관리시스템을 개발하고 이를 소개한다. 이를 통해 정보의 정확성 및 업무 효율이 높아지고, 소재은행의 개별시스템 운영과 비교하여 시스템 및 정보화 인력의 중앙화로 인해 단일 비용이 발생함에 따라 비용 감소의 효과를 볼 수 있다. Biological research resources can create an enormous added value, and have infinite value as future resources to support bio-economy. To increase the use of biological research resources which national importance and interest has been emerged largely in the world, we need to manage related information and sample as a basic material systematically. Currently, most information of biological research resources is easy to be lost or to be kept inaccurately because it is managed as a file. In this paper, we develop and introduce the integrated resource management system that can manage the life cycle of biological research resources and related information systematically through the standardization of resource management process and information. Therefore the integrated resource management system will improve the accuracy of information and the managing efficiency. It will also bring cost saving effect in centralized managing system by elimination of overlapping work and workforce in individual operating system of resource center.