항암화학요법을 받는 유방암 환자의 극복력 구조모형

양정하(Yang, Jeong Ha),김옥수(Kim, Ok Soo) 한국간호과학회 2016 Journal of Korean Academy of Nursing Vol.46 No.3

Purpose: The purpose of this study was to construct and test a structural equation model on resilience of breast cancer patients receiving chemotherapy. Methods: Participants were 204 patients with breast cancer who received chemotherapy treatment. They participated in a structured interview, which included social support, depression, symptom experience, self-efficacy, hope, resilience, and infection prevention behaviors. Data were analyzed using SPSS/WIN 20.0 and AMOS 18.0. Results: Lower depression (γ=-.33, p =.020) and symptom experience (γ=-.31, p =.012) and higher self-efficacy (γ=.32, p =.005) and hope (γ=.48, p =.016) were influenced by higher social support. Greater resilience was influenced by lower symptom experience (β=-.18, p =.016), higher self-efficacy (β=.49, p =.023), and higher hope (β=.46, p =.012), and these predictors explained 66.7% of variance in resilience. Greater resilience (β=.54, p =.009) made an impact on greater infection prevention behaviors. Resilience mediated the relations of symptom experience (β=-.10 p =.013), self-efficacy (β=.27, p =.006) and hope (β=.25, p =.009) with infection prevention behaviors. These predictors explained 24.9% of variance in infection prevention behaviors. Conclusion: The findings of the study suggest that breast cancer patientsw ith greater resilience who are receiving chemotherapy participate in increased infection prevention behaviors. Further research should be conducted to seek intervention strategies that improve breast cancer patients’ resilience.

의학용어 직소 협동학습이 대학생의 학업성취도와 자기주도적 학습능력에 미치는 효과

양정하(Jeong Ha, Yang),염계정(Gye Jeong, Yeom),김지현(Ji Hyun, Kim) 한국간호연구학회 2019 한국간호연구학회지 Vol.3 No.4

Purpose : This study aimed to evaluate the effects of jigsaw cooperative learning applied in medical terminology on academic achievement and self-directed learning in nursing students. Methods : A non-equivalent control group pretest-posttest design was employed to test the effects. Totally 46 nursing students were recruited either experimental group(n=23) or a control group(n=23). Instructional design for medical terminology was developed based on analysis, design, development, implement, and evaluation(ADDIE) model. During 4 weeks of 5 hours a day, the jigsaw cooperative learning was applied to the experimental group and traditional lecture was performed to the control group. Results : The experimental group had significantly highly scored in academic achievement. Self-directed learning ability between the two groups were not significantly different. According to the satisfaction survey after the jigsaw cooperative learning of the experimental group, 20 of the participants( 87%) were satisfied. Conclusion : Jigsaw cooperative learning was found to be a useful teaching and learning method for improving academic achievement in medical terminology class. In addition, it is expected to contribute to nursing education by suggesting alternative teaching methods available.

수평흐름식 여과기술의 CSOs 적용을 위한 공정 최적화 연구

김재학(Jae-Hak Kim),양정하(Jeong-Ha Yang),이영신(Young-Shin Lee) 한국산학기술학회 2018 한국산학기술학회논문지 Vol.19 No.2

강우사상이 발생함에 따라 시설용량을 초과하여 미처리된 상태로 방류수계에 직접 배출되는 합류식 관거 월류수(Combimed Sewer Overflows, CSOs) 및 분류식 관거 월류수(Separated Sewer Overflows, SSOs)의 관리는 집중호우가 잦아지는 근래에 들어 그 관리가 더욱 중요해지고 있다. 밀집도가 높은 도심지에 적용성이 유리한 여과기술은 지속적인 개발이 이루어지고 있음에도 불구하고 CSOs에 적용된 사례가 거의 전무한 실정이다. 따라서 본 연구에서는 로프형 섬유여재가 적용된 Pilot 규모의 수평흐름식 여과장치를 CSOs에 적용하기 위해 공정최적화를 목적으로 수행되었다. 연구방법은 인공시료를 적용한 사전연구와 하수를 적용한 현장연구로 구분하여 수행하였다. 인공시료를 적용한 사전연구에서 여재 자체의 손실수두는 약 1.1cm정도로 분석되었고, 선속도 10m/hr 증가에 따라 약 0.1cm 정도의 손실수두 증가를 유발하는 것으로 나타났다. 또한, SS 제거효율은 81.4% 정도로 안정적이었고, 여과지속시간은 6시간 이상 유지되었으며, 공기역세척만으로도 98% 정도의 손실수두 평균 회복율을 보였다. 하수를 적용한 현장평가에서는 여재의 조기폐색을 방지하기 위한 전처리공정으로 벨트형 미세스크린(450mesh 이상)를 적용했을 때 2시간 내외의 여과지속시간을 확보할 수 있었고, 평균 83.9%의 SS 제거효율을 나타내었다. CSOs 및 SSOs에 여과공정 적용을 위해서는 효율적 측면보다 여과지속시간의 안정적 유지를 위한 수리적 측면을 보완하기 위해서 전처리공정과의 조합이 중요하다는 결론을 얻을 수 있었다. 건기와 비교하여 우기의 유입하수 수질은 다소 낮은 보였으며, 이는 분류식 관거 비율이 높은 배수구역의 특성 때문인 것으로 추정된다. 또한, 우기와 건기의 유입수질에 따른 제거효율 차이는 미미하였다. The management of Combined Sewer Overflows(CSOs) and Separated Sewer Overflows(SSOs) discharge directly to the effluent system in an untreated state, which occurs when the facility capacity is exceeded due to heavy rain, has become an important issue in recent years as the heavy rain becomes a regular phenomenon. Despite the continuous development of filtration technology, targeting densely populated urban areas, CSOs are rarely applied. Therefore, this study was carried out to optimize the process to apply CSOs in a pilot-scale horizontal flow filtration system with a rope-type synthetic fiber. The research was carried out in two steps: a preliminary study using artificial samples and a field study using sewage. In the preliminary study using an artificial sample, head loss of the filter media itself was analyzed to be approximately 1.1cm, and the head loss was increased by approximately 0.1cm as the linear velocity was increased by 10m/hr. In addition, the SS removal efficiency was stable at 81.4%, the filtration duration was maintained for more than 6 hours, and the average recovery rate of 98% was obtained by air backwashing only. In the on-site evaluation using sewage, the filtration duration was approximately 2 hours and the average removal efficiency of 83.9% was obtained when belt screen (over 450 mesh) was applied as a pre-treatment process to prevent the premature clogging of filter media. To apply the filtration process to CSOs and SSOs, it was concluded that the combination with the pre-treatment process was important to reinforce the hydraulic dimension for the stable maintain of operation period, rather than efficiency. Compared to the dry season, the quality of incoming sewage was lower in the rainy season, which was attributed to the characteristics of the drainage area with higher sanitary sewerage. In addition, the difference in removal efficiency according to the influent quality of the wet season and dry season was small.

스마트카를 위한 차선변경 인식시스템

이용진(Yong-Jin Lee),양정하(Jeong-Ha Yang),곽노준(Nojun Kwak) 제어로봇시스템학회 2015 제어·로봇·시스템학회 논문지 Vol.21 No.1

In this paper, we propose a vision-based method to recognize lane changes of an autonomous vehicle. The proposed method is based on six states of driving situations defined by the positional relationship between a vehicle and its nearest lane detected. With the combinations of these states, the lane change is detected. The proposed method yields 98% recognition accuracy of lane change even in poor situations with partially invisible lanes.

산업단지에서 발생하는 미세먼지의 입경분포 및 금속성분 함유 특성조사

고재철 ( Jae-churl Ko ),양정하 ( Jeong-ha Yang ) 한국환경기술학회 2018 한국환경기술학회지 Vol.19 No.3

본 연구에서는 시흥스마트허브에서 발생되는 미세먼지의 입경별 분포 및 금속성분 함유특성을 조사하여 저감정책 수립의 기초자료로 활용하고자 하였다. 입도분포 조사결과에서는 0.54 ㎛ 이하의 초미세입자가 현저히 높은 비율을 차지하고 있었고, PM_2.5/PM₁₀ 비율은 일반적인 주거지역보다 높았다. 가을철에 채취된 시료의 이온성분 조사 결과에서는 질산염이온과 황산염이온이 특정지점에서 높게 함유되어 있는 점을 미루어 연소공정 및 화학공정에서 배출되는 초미세먼지의 영향을 받고 있는 것으로 판단되었다. 금속성분 함유특성 조사결과에서는 계절별로 차이를 보이나 알루미늄, 철, 아연 농도가 상대적으로 높게 나타났고, 공업지역과 주거지역간의 상관성은 발견되지 않았다. 시흥스마트허브에서 발생되는 미세먼지의 특성을 고려했을 때 초미세먼지의 저감이 우선시되어야 할 것으로 판단되었다. The distribution of fine particulate matter(PM) and the characteristics of metal components in PM from Siheung Smart Hub are investigated to utilize them as basic data for establishing the reduction policy. Particle size distribution shows that the PM below 0.54 ㎛ accounted for a significantly high proportion, and the PM_2.5/PM₁₀ ratio is higher than that of ordinary residential areas. The ionic components analysis results of the samples collected in autumn shows that nitrate ions and sulfate ions are highly contained at specific sites, and it is considered to affected by ultra-fine PM emitted from the combustion process and chemical process. The characteristics of metal components have seasonal difference and aluminum, iron, and zinc concentrations are relatively high, but there is no correlation between industrial and residential areas. Considering the characteristics of PM emitted in Siheung Smart Hub, the reduction of ultra-fine PM should be given priority.

고등학생의 충동성과 도박행동의 관계에서 도박동기의 매개효과

선혜민(Sun Hye Min),박진희(Park Jin Hee),조은희(Cho Eun Hi),양정하(Yang Jeong Ha),최지이(Choe Ji Yi),신현주(Sin Hyon Ju),천성문(Cheon Seong Moon) 학습자중심교과교육학회 2019 학습자중심교과교육연구 Vol.19 No.11

본 연구는 고등학생을 대상으로 충동성과 도박행동과의 관계에서 도박동기의 매개효과를 확인하고자 하였다. 이를 위해 부산, 경남지역 소재 고등학생 779명을 대상으로 충동성 척도, 도박동기 척도, 청소년 도박행동 척도를 사용하여 설문조사를 실시하였다. 수집된 자료를 바탕으로 주요 변인들 간의 관련성을 살펴보기 위해 상관관계 분석을 하였으며, 매개효과를 알아보기 위하여 Baron과 Kenny(1986)의 3단계 분석을 사용하였다. 결과를 살펴보면, 첫째, 충동성은 도박행동과 유의한 정적 상 관을 보였다. 또한 충동성과 도박동기의 하위유형인 흥분동기, 회피동기, 금전동기와 통계적으로 유의한 정적 상관을 보였으며, 사교동기와 유희동기는 통계적으로 유의한 상관이 존재하지 않는 것으로 나타났다. 둘째, 흥분동기, 회피동기, 금전동기 는 각각 충동성과 도박행동 간의 유의하게 부분 매개하는 것으로 나타났다. 본 연구 결과를 토대로 후속연구에 대한 제언과 시사점을 논의하였다. This study investigated the relationship among gambling motivation, impulsivity and gambling behaviors in high school students. For this purpose, 784 high school students in Busan and Kyungnam area were surveyed using impulsivity scale, gambling motivation scale, and youth gambling behavior scale. A correlation analysis was conducted to examine the relationship between the main variables on the basis of the collected data and mediate the relationship between impulsiveness and gambling behavior, Baron and Kenny(1986). In this paper, First, impulsiveness showed significant positive correlation with gambling behaviors. In addition, there was a statistically significant correlation with the sub factor of impulsivity and gambling motivation, excitement motivation, avoidance motivation, and money motivation. There was no statistically significant correlation between social motivation and play motivation. Second, the excitement motivation, the avoidance motivation and the money motivation each was significantly mediated between impulsivity and gambling behavior. Also, in this study, we examined the mediating effect of gambling motivation, There are important implications. Finally, the implications and limitations of the study were discussed.

전문대학 4년제 간호학과의 임상실습교육 현황조사

김지미(Ji Mee, Kim),김진경(Jin Kyung, Kim),류경희(Kyung Hee, Ryu),양정하(Jeong Ha, Yang),양진주(Jin Ju, Yang) 한국간호연구학회 2019 한국간호연구학회지 Vol.3 No.3

Purpose : The purpose of this study was to investigate the current state of clinical practice education among 4-year nursing program in college and to find out how to improve clinical practice education that combines effectiveness and efficiency. Methods : This study was sent to 86 member university of the Korean Deans Association of Nursing College by email with questionnaires for college and their practice institutes from December 10, 2018 to January 12, 2019. Results : The response rate was 60.5%. 78.8% of respondents thought that the current standard of 1,000 hours of clinical practice was not appropriate. The ideal person in charge of clinical curriculum operation was clinical dedicated professor(32.7%), but only 7.7% of the respondent said that there was actually clinical dedicated professor. On how to practice in the unit of practice, 65.4% of the respondents said that more than 60% was by observation, 69.2% of them said that less than 10% was by performing directly to the patient. 42.3% of the respondents said that the current method of nursing practice was not appropriate. Conclusion : In order to improve clinical practice education, it is considered necessary to adjust the current standard hours of clinical practice, set up dedicated training system, indicate co-responsibility of legally prescribed clinical training, relax of standards of practice institutions and establish the condition of the practical training institution appropriate for clinical training education.