• 한국컴퓨터정보학회논문지
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• 제29권3호
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• pp.199-216
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• 2024

이 연구는 인터넷 유명인 경제라는 배경에서 전자 상거래 라이브 스트리밍이 소비자 구매 의도에 영향을 미치는 요인들을 심층적으로 분석하였다. 이는 인터넷 유명인 경제의 역동성을 탐구하는 중요한 연구 문제로서, 특히 경제적 영향 측면에서 인터넷 유명인들의 영향력 범위를 밝히고자 하였다. 감정-행동-인지(ABC) 태도 이론과 자극-유기체-반응(S-O-R) 이론을 기초 틀로 사용하여, 이 논문은 인터넷 유명인 라이브 스트리밍 판매를 대상으로 연구를 진행하였다. 직접 관찰과 기존 문헌과 이론을 기반으로 맞춤형 측정 도구와 설문지를 개발하고 연구 모델과 가설이 도출하였다. 이 실증 모델은 인터넷 유명인 경제 맥락 내에서 전자 상거래 라이브 스트리밍이 소비자 구매 의도에 어떻게 영향을 미치는지를 실증적으로 분석하도록 하였다. 이론적 통찰과 실증적 발견을 통합함으로써, 연구는 디지털 상거래에서의 전략적 차원과 소비자 행동 측면을 명확히 하였다. 이는 인터넷 유명인의 영향력이 소비자 구매 의도 및 행동에 어떻게 영향을 미치는 지를 보여준다. 전반적으로, 이 연구는 디지털 마케팅 및 소비자 행동에 대한 학술 문헌에 기여하며, 인터넷 유명인이 전자 상거래에 미치는 영향 메커니즘에 대한 통합적 관점을 제공합니다. 이는 인터넷 유명인 경제의 복잡한 큰 그림을 탐색하고자 하는 마케터, 전략가, 정책 입안자들에게 소중한 시사점을 제공한다.

• 인터넷정보학회논문지
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• 제17권6호
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• pp.71-79
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• 2016

컴퓨터 성능이 발전하면서 물리, 화학, 재료과학, 생명과학 등에 이용하는 계산과학(Computational Science)이 주목을 받고 있다. 국내에서는 이러한 계산과학 문제를 해결하기 위해 학생 및 연구자들이 EDISON 플랫폼을 이용하고 있다. EDISON 플랫폼은 5개 분야(전산열유체, 나노물리, 계산화학, 구조동역학, 전산설계)문제 해결 환경을 위한 교육-연구용 웹 포털을 제공하는 서비스이다. 시스템의 규모 및 사용자층이 늘어남에 따라, 서비스 제공뿐만 아니라 실제 운영되는 시스템의 데이터 관리 체계를 효율적으로 운용할 필요성이 대두되고 있다. 본 논문에서는 기존 EDISON 플랫폼과 웹 포털 간의 데이터 동기화 문제를 해결하였고, EDISON 웹 포털이 통합됨에 따라, 사용자의 데이터 및 파일을 통합 관리하기 위해서 EDISON 플랫폼의 파일관리 서비스를 구현하여 파일관리 효율성을 향상 시켰다.

• 한국과학교육학회지
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• 제38권4호
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• pp.565-574
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• 2018

본 연구는 과학중점학교 과학수업에 대한 학생들의 인식을 조사하여 과학중점학교 사업을 통해 우리나라 과학교육의 개선을 위해 시행된 과학중점학교에 대한 전략적 지원과 노력들이 수업에서 어떻게 나타나고 있는지 살펴보고자 하였다. 이를 위해 14개 과학중점학교의 학생 654명이 연구에 참여하였으며, 학생들은 과학중학교 과학수업의 특징과 과학중점학교가 일반 고등학교와 다른 점을 묻는 2개의 개방형 문항에 응답하였다. 학생들의 응답은 언어네트워크 분석방법을 사용하여 분석하였으며 그 결과는 다음과 같다. 먼저, 학생들은 교사와 학생의 원활한 소통, 학생들이 자유롭게 질문하고 서로 토론하며 적극적으로 수업에 참여하는 분위기, 과학 실험 활동, 어려운 과학 내용을 배우는 것, 학습된 지식을 공유하는 긍정적인 수업 분위기 등을 과학수업의 특징으로 인식하고 있었다. 학생들이 인식하고 있는 과학중점학교의 차별적 특성으로는 많은 수의 과학 관련 교과목(과제연구, 과학II 과목 등)의 이수, 관심 있는 분야의 비교과 체험활동, 탐구 및 연구 중심의 학생활동과 이에 대한 학교의 지원, 좋은 수업 분위기, 과학과 관련한 많은 수업시간, 활발한 R&E 및 동아리 활동, 다양한 과학실험 활동 등으로 나타났다. 그리고 과학중점학교의 과학수업에 대한 '어렵고 힘들지만 적극적으로 참여하는' 수업이라는 이러한 분석결과는 선행연구들에서 밝혔던 좋은 과학수업의 모습과 많이 유사한 것이기도 하였다. 그동안 과학중점학교에 대해 이루어졌던 여러 행 재정적인 지원과 함께, 과학 교실수업에 대한 본 연구의 조사결과는 앞으로 이루어질 학교교육의 혁신 프로그램의 도입에 실질적인 도움과 벤치마킹 사례를 제공해 줄 것으로 기대한다.

• 복식문화연구
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• 제29권4호
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• pp.538-553
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• 2021

As interest in the sustainable fashion industry continues to increase along with climate issues, it is necessary to identify research trends in sustainable fashion and seek new development directions. Therefore, this study aims to analyze research trends on sustainable fashion. For this purpose, related papers were collected from the KCI (Korean Citation Index) and Scopus, and 340 articles were used for the study. The collected data went through data transformation, data preprocessing, topic modeling analysis, core topic derivation, and visualization through a Python algorithm. A total of eight topics were obtained from the comprehensive analysis: consumer clothing consumption behavior and environment, upcycle product development, product types by environmental approach, ESG business activities, materials and material development, process-based approach, lifestyle and consumer experience, and brand strategy. Topics were related to consumption, production, and education of sustainable fashion, respectively. KCI analysis results and Scopus analysis results derived eight topics but showed differences from the comprehensive analysis results. This study provides primary data for exploring various themes of sustainable fashion. It is significant in that the data were analyzed based on probability using a research method that excluded the subjective value of the researcher. It is recommended that follow-up studies be conducted to examine social trends.

• The Plant Pathology Journal
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• 제28권2호
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• pp.149-155
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• 2012

A field trial was conducted in 2009/2010 and 2010/2011 growing seasons at Giza Agricultural Research Station to examine correlations between some biochemical componets and powdery mildews ($PM_s$) resistance in flax cultivars. Nine flax cultivars could be divided into five distinct groups, i.e., highly susceptible (Cortland and C.I. 2008), moderately susceptible (Giza 7, and Marshall), moderately resistant (Cass), resistant (Koto, Dakota and Wilden), and highly resistant (Ottowa 770B). The cultivars showed considerable variation in PM severity ranged from 8.05 on Ottowa 770B to 97.02% on Cortland. Total soluble proteins, total phenols, antioxidant enzymes (peroxidase and polyphenoloxidase), ascorbic acid, tocopherol, and malondialdehyde (MDA), were determined in uninfected leaves of the tested cultivars. Pearson's correlation coefficient was calculated to measure the degree of association between PM severity and each component. All components showed significant (P < 0.05) or highly significant (P < 0.01) negative correlation with PM severity except MDA, which showed positive correlation (P < 0.01). Linear regression analysis was used to evaluate the causal relationship between the biochemical components (independent variables) and PM severity (dependent variable). Coefficient of determination ($R^2$) values of the generated models ranged from 48.76 to 77.15%. Tocopherol, MDA, and proteins were the most important contributors to the total variation in PM severity as the $R^2$ values of their models were 71.78, 75.28, and 77.15%, respectively. The results of the present study suggest that tocopherol, MDA, and proteins in uninfected leaves can be used as biochemical markers to predict PM resistance in flax.

• 운동영양학회지
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• 제24권4호
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• pp.15-23
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• 2020

[Purpose] Lactate is a principal energy substrate for the brain during exercise. A single bout of high-intensity interval exercise (HIIE) can increase the blood lactate level, brain lactate uptake, and executive function (EF). However, repeated HIIE can attenuate exercise-induced increases in lactate level and EF. The lactate levels in the brain and blood are reported to be correlated with exercise-enhanced EF. However, research is yet to explain the cause-and-effect relationship between lactate and EF. This study examined whether lactate consumption improves the attenuated exercise-enhanced EF caused by repeated HIIE. [Methods] Eleven healthy men performed two sets of HIIE, and after each set, 30 min were given for rest and examination. In the 2^nd set, the subjects consumed experimental beverages containing (n = 6) and not containing (n = 5) lactate. Blood, cardiovascular, and psychological variables were measured, and EF was evaluated by the computerized color-word Stroop test. [Results] The lactate group had a higher EF (P < 0.05) and tended to have a higher blood lactate level (P = 0.082) than the control group in the 2^nd set of HIIE. Moreover, blood lactate concentration was correlated with the interference score (i.e., reverse score of EF) (r = -0.394; P < 0.05). [Conclusion] Our results suggest that the attenuated exercise-enhanced EF after repeated HIIE can be improved through lactate consumption. However, the role of lactate needs to be elucidated in future studies, as it can be used for improving athletes' performance and also in cognitive decline-related clinical studies.

• 기본간호학회지
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• 제11권1호
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• pp.6-12
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• 2004

Purpose: The purpose of this study was to evaluate self-study learning achievement in undergraduate nursing students who used a web-based wound care e-book. Method: The web-based wound care e-book was applied to 80 nursing students at Y university. The students studied the wound care e-book for four weeks and practiced wound dressing by themselves in open laboratory. Learning achievement was evaluated according to achievement of unit objectives and performance of an actual wound dressing. Result: 1. The total mean score for achievement of unit objectives was 3.06 (${\pm}0.41$) and the total mean score on the performance of the wound dressing was 89.40 (${\pm}5.47$). 2. There was no difference between the scores in the performance test (F=1.012, p=.366) for students who used self-study and those who were given a lecture. 3. A positive correlation was found between achievement of unit objectives and performance of the wound dressing (r=0.306, p<0.05). Conclusion: The web-based wound care e-book was effective in facilitating self-study for nursing students, and there is a need to continuously develop and up-date web-based nursing education e-books to facilitate self-study.

• Journal of Ginseng Research
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• 제46권4호
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• pp.515-525
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• 2022

Background: The incidence of ischemic cerebrovascular disease is increasing in recent years and has been one of the leading causes of neurological dysfunction and death. Ginsenoside Rg1 has been found to protect against neuronal damage in many neurodegenerative diseases. However, the effect and mechanism by which Rg1 protects against cerebral ischemia-reperfusion injury (CIRI) are not fully understood. Here, we report the neuroprotective effects of Rg1 treatment on CIRI and its possible mechanisms in mice. Methods: A bilateral common carotid artery ligation was used to establish a chronic CIRI model in mice. HT22 cells were treated with Rg1 after OGD/R to study its effect on [Ca²⁺]_i. The open-field test and poleclimbing experiment were used to detect behavioral injury. The laser speckle blood flowmeter was used to measure brain blood flow. The Nissl and H&E staining were used to examine the neuronal damage. The Western blotting was used to examine MAP2, PSD95, Tau, p-Tau, NOX2, PLC, p-PLC, CN, NFAT1, and NLRP1 expression. Calcium imaging was used to test the level of [Ca²⁺]_i. Results: Rg1 treatment significantly improved cerebral blood flow, locomotion, and limb coordination, reduced ROS production, increased MAP2 and PSD95 expression, and decreased p-Tau, NOX2, p-PLC, CN, NFAT1, and NLRP1 expression. Calcium imaging results showed that Rg1 could inhibit calcium overload and resist the imbalance of calcium homeostasis after OGD/R in HT22 cells. Conclusion: Rg1 plays a neuroprotective role in attenuating CIRI by inhibiting oxidative stress, calcium overload, and neuroinflammation.

• 임상간호연구
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• 제23권2호
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• pp.248-257
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• 2017

Purpose: This study was aimed to compare nursing competency, self-esteem, and job stress between floating nurses and clinical nurses. Methods: The data were collected between October $1^{st}$ and December $31^{st}$, 2015, from 43 floating nurses and 57 clinical nurses working at a tertiary care hospital in Seoul. The collected data were analyzed with SPSS/WIN 23.0, using descriptive statistics and the t-test, $x^2$ test, ANCOVA, ANOVA, $Scheffe{\acute{e}}$ test, Pearson correlation coefficients, and Stepwise multiple regression. Results: The nursing competency of clinical nurses was significantly higher than that of floating nurses (F=4.370, p=.039). For both floating and clinical nurses, nursing competency was positively correlated with self-esteem (floating nurses, r=.47, p=.002; clinical nurses, r=.62, p<.001). Also, For both floating and clinical nurses, the most significant predictor of nursi ng competency was self-esteem(floating nurses, ${\beta}=0.45$, p=.001; clinical nurses, ${\beta}=0.60$, p<.001). Conclusi on: Efforts are needed to increase the nursing competency of the floating nurse through the improvement of the floating system, the nursing work environment, and continuous education. Also, as self- esteem is the most effective predictor of nursing competence, nursing intervention is needed to improve self-esteem of the floating nurse.

• 근관절건강학회지
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• 제24권1호
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• pp.14-23
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• 2017

Purpose: The purpose of this study was to identify the factors affecting the perceptions of patient safety culture, safety care knowledge, and safety care activity among nurses at orthopedic hospitals. Methods: Data were collected during Feb. 16 and Feb. 26, 2017, from 195 nurses of 9 small to medium sized orthopedic hospitals. Questionnaires about patient safety culture, safety care knowledge and activity were used. Data were analyzed by descriptive statistics, t-test, ANOVA, $Scheff\acute{e}$ test, Pearson's correlation coefficient, and stepwise multiple regression. Results: The safety care activity was positively correlated with perceptions of patient safety culture (r=.50, p<.001) and knowledge (r=.48, p<.001). Factors that had influence on the safety care activity were the patient safety culture (${\beta}=.30$, p<.001), age (${\beta}=.27$, p<.001), and knowledge of the safety activity (${\beta}=.21$, p=.004). The patient safety care activity was explained 36.6% by those factors. Conclusion: To enhance the patient safety care activity, it should be provided the environment and open communication for the perceptions of patient safety culture and the in service education program for safety care knowledge.