[P1-40] Antiradical Effects on Reactive Oxygen Species and DNA Protective Effects on Oxidative Stress of the Extracts of the of Kunbyongpung (Cacalia firma Komar)

Aeri Park,Khejhae Lee,Daewoon Choi,Jongdai Kim,Myeon Choe,Kyung-Nam Kim,Jae-Cheol Lee,Jinha Lee 한국식품영양과학회 2007 한국식품영양과학회 학술대회발표집 Vol.2007 No.10

The Effect of Learners’ Characteristics on Learning Performance in Non-Face-To-Face Liberal Arts Coding Class

Aeri Lee(Aeri Lee) J-INSTITUTE 2022 Robotics & AI Ethics Vol.7 No.2

Purpose: In this study, we investigate the characteristics of learners in the liberal arts coding class and study the relationship between learners’ characteristics and learning outcomes to find methods to enhance learning performance. Through this study, we intend to provide the basic data to be used by the schools and educators operating coding education in the real world to establish the teaching strategy for coding education according to the characteristics of the learners. Method: The collected data was analyzed using SPSS 23, as follows. The reliability of the measurement tools on self-efficacy, learning interest, learning motivation, digital literacy, and learning satisfaction were calculated and verified. Through a survey, data on self-efficacy, learning motivation, digital device efficacy, learning satis-faction, and academic achievement were collected and descriptive statistical analysis was performed to identify trends. We performed multiple regression analyses with self-efficacy, learning motivation, and digital device ef-ficacy as independent variables, whereas learning satisfaction and academic achievement as dependent varia-bles. Before the regression analysis, a Pearson correlation analysis was performed between self-efficacy, learning motivation, digital device efficacy, learning satisfaction, and academic achievement to confirm the significance of the relationship between the measurement variables. Results: The significance test results of the regression model showed that self-efficacy and digital device effi-cacy had a positive effect on learning satisfaction and learning motivation and digital device efficacy also had a positive effect on academic achievement. In other words, we evaluated that higher self-efficacy and digital device efficacy lead to higher learning satisfaction whereas higher learning motivation and digital device efficacy lead to higher academic achievement. Conclusion: Through this study, we confirmed that learners’ characteristics have a high influence on both learning satisfaction and academic achievement. In the future study, we plan to add multiple factors of learners’ characteristics that affect learning performance and studies on educators’ characteristics to obtain various and meaningful results.

Hair growth promoting effect of dermal papilla like tissues from canine adipose-derived mesenchymal stem cells through vascular endothelial growth factor

LEE, Aeri,BAE, Sohee,LEE, Seung Hoon,KWEON, Oh-Kyeong,KIM, Wan Hee The Japanese Society of Veterinary Science 2016 The Journal of veterinary medical science Vol.78 No.12

<P>The purpose of this study was to investigate the protein expression pattern and the <I>in vivo</I> trichogenicity of dermal papilla-like tissues (DPLTs) made from canine adipose-derived mesenchymal stem cells (ASCs) in athymic nude mice. Canine ASCs were isolated and cultured from adipose tissue, and differentiation was induced by culturing ASCs in dermal papilla forming media. DPLTs were embedded in collagen gel, and their structural characteristics and protein expression were evaluated by hematoxylin and eosin stain and immunohistochemistry. Athymic nude mice were divided into two groups (control and DPLTs groups), and DPLTs were injected in skin wounds of mice in the DPLTs group. The trichogenicity of DPLTs was assessed by gross and histological evaluations for 30 days. The fate and the growth factor-secretion effect of DPLTs were evaluated by immunohistochemistry and Western blotting. DPLTs have a compact aggregated structure, form extracellular matrix and highly express the protein specific for dermal papillae, including ALP and versican. New hair follicle formation was remarkable in nude mice of the DPLTs group in gross findings and H&E stain. Vascularization was increased in the DPLTs group, which was the effect of vascular endothelial growth factor secreted by DPLTs <I>in vitro</I> and <I>in vivo</I>. These data suggest that engineered canine DPLTs have characteristics of dermal papillae and have a positive effect on hair regeneration by secreting growth factors.</P>

한국산업기술대학교에서의 국제 무인 태양광 자동차 경주대회를 위한 차량 제작

이상민(Sangmin Lee),이건준(Gunjun Lee),양병창(Byungchang Yang),채윤병(Yoonbyung Chae),하태균(Taekyun Ha),이호연(Hoyeon Lee),고광훈(Kwanghoon Ko),차애리(Aeri Cha),이강원(Kangwon Lee) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11

최근의 자율 주행 기능의 발전에 발맞추어 지식경제부 후원으로 무인태양광 자동차 경주대회가 2012 년 10 월 개최되어 모두 10 개 대학팀과 한 개 산업체 팀이 참여하였다. 이 논문에서는 한국산업기술대학교 출전 차량에 대해 설명하고자 한다.

Apoptosis-induced Cell Growth Inhibitory Effects of a Novel Compound, As4O6 in a Cervical Cancer Cell Line, SiHa in Vitro

Woong-Shick Ahn,Su-Mi Bae,Sun-Young Kwak,Ae Ju Lee,Aery Lee,Yong Seok Lee,Il-Ju Bae,Jin-Young Yoo,Young-Joo Lee,김종국,Hong-Seok Chang 대한암예방학회 2006 Journal of cancer prevention Vol.11 No.1

As2O3 has been reported to be effective for treating acute leukemia and induce apoptosis in many tumor cells. In this study, we evaluated the ability of a novel arsenical compound, As4O6, along with As2O3 to induce cell growth inhibition as well as apoptosis in human cervical cancer cells, SiHa cells in vitro. To examine the levels of apoptosis, SiHa cells were given two sensitive doses, 0.5 and 1μM of arsenical compounds, and then, DNA fragmentation assay and FACS analysis were conducted. In addition, Western blotting assay was done for the identification of target molecules for apoptosis. Both As2O3 and As4O6 caused dose-dependent inhibition of SiHa cell proliferation. In particular, As4O6 was more effective for suppressing SiHa cell growth, as compared to As2O3. In parallel with inhibition of cell proliferation, As4O6 caused an increase of the sub-G1 cell population significantly more than As2O3, as determined by propidium iodide DNA staining. This was confirmed by DNA fragmentation assay and annexin V staining. Western blotting analysis also showed that the proliferating cell nuclear antigen (PCNA) expression was suppressed by As4O6 significantly more than As2O3, and that Bcl-XL with sequence homology to Bcl-2 was significantly suppressed by As4O6. However, apoptosis-related proteins, p21 and Bax, were expressed by As4O6 significantly more than As2O3. Taken together, these findings suggest that a novel arsenic compound, As4O6 possesses more potent anti-proliferative effects on human cervical cancer cells with induction of apoptosis at least through activation in p21 and Bax proteins in vitro. (Cancer Prev Res 11, 39-45, 2006)

Landing with Visual Control Reveals Limb Control for Intrinsic Stability

Lee, Aeri,Hyun, Seunghyun,Ryew, Checheong The Institute of Internet 2020 International Journal of Internet, Broadcasting an Vol.12 No.3

Repetition of landing with visual control in sports and training is common, yet it remains unknown how landing with visual control affects postural stability and lower limb kinetics. The purpose of this study was to test the hypothesis that landing with visual control will influence on lower limb control for intrinsic dynamic postural stability. Kinematics and kinetics variables were recorded automatically when all participants (n=10, mean age: 22.00±1.63 years, mean heights: 177.27±5.45 cm, mean mass: 73.36±2.80 kg) performed drop landings from 30 cm platform. Visual control showed higher medial-lateral force, peak vertical force, loading rate than visual information condition. This was resulted from more stiff leg and less time to peak vertical force in visual control condition. Leg stiffness may decrease due to increase of perturbation of vertical center of gravity, but landing strategy that decreases impulse force was shifted in visual control condition during drop landing. These mechanism explains why rate of injury increase.

The Effect of ARTIFICIAL INTELLIGENCE Literacy Education on University Students Ethical Consciousness of Artificial Intelligence

Aeri Lee J-INSTITUTE 2021 Robotics & AI Ethics Vol.6 No.3

Purpose: As a core technology of the 4th industrial revolution, artificial intelligence is rising as a crucial tech-nology for determining the competitiveness of nations and industries at a great pace. However, students who are not majoring in it have the tendency to perceive AI technology to be difficult, and hence, a more efficient AI edu-cation is needed. The purpose of this study is to present an educational program for the artificial intelligence liter-acy appropriate for the learner s level, apply it to the classroom, then explore its impact in terms of the artificial intelligence ethics. Method: In this study, an educational program for the artificial intelligence literacy which may be utilized for the non-majors using the tools of artificial intelligence has been designed. To analyze the impact of the educa-tional program conducted in this study on the learner s perception of the artificial intelligence ethics, the single group pre- and post-test which infers the causal relationship by implementing and analyzing the questionnaires on the changed perception of the artificial intelligence ethics before and after the application of the program was applied for the design method. Results: The impact of the education program for the artificial intelligence literacy on the perception of the arti-ficial intelligence ethics has been analyzed through the single group’s pre- and post-test by operating this pro-gram. As a result of the analysis, it has been verified that there was a positive change in the perception of the artificial intelligence ethics via the proposed educational program for the artificial intelligence literacy. Conclusion: In this study the impact of the educational program for the artificial intelligence literacy on the learner s perception of the artificial intelligence ethics has been analyzed by proposing and applying educational program for the artificial intelligence literacy for and in college and university liberal arts classes for the non-majors. The artificial intelligence literacy education has had a positive impact on the learner s perception of the artificial intelligence ethics. For the non-major students to fully comprehend the artificial intelligence, including the artificial intelligence ethics, an education which includes experience in the use of artificial intelligence ought to be offered beyond the classes of theory which merely convey knowledge, and towards this end, it was verified that a well structured artificial intelligence literacy education which can more than adequately offer the experiences of using and utilizing the artificial intelligence is necessary.

Effects of Acute Acid Stress on Hatching and Mortality of Hermaphroditic Teleost, Rivulus marmoratus (Cyprinodontiformes; Rivulidae)

AeRi Kim,Meoung-Sook Lee,Eun-Ho Park 한국통합생물학회 2003 Animal cells and systems Vol.7 No.4

The effects of acute acid stress on hatching success and hatching period of laboratory-reared hermaphroditic fish Rivulus marmoratus were examined. The effects of acute acid toxicity on mortality was also determined in three life stages of this fish. There was a significant negative effect of acid stress on hatching performance in the R. marmoratus embryos. The hatching success was only 5% at pH 3.5 compared to over 78% at pH higher than 4.0. The hatching period was also delayed by low pH treatments. The larval and juvenile stages were more sensitive to acid toxicity on mortality than the adult stage, but larvae and juveniles showed similar sensitivity. The 96-h LC50 value was pH 3.8 in larval and juvenile stages and pH 3.3 in adult stage.

Analysis of the Effectiveness of Online Education of Liberal Arts Coding Classes in the AI Era: The Mediating Effect of Learning Flow

Aeri Lee J-INSTITUTE 2022 Robotics & AI Ethics Vol.7 No.1

Purpose: This study aims to analyze the effectiveness of online education in liberal arts coding classes that have different characteristics from general online theory classes. Through this, it is a study conducted to find out what factors to pay attention to in order to increase the educational effect of online liberal arts coding classes and to derive various implications for improving learners learning outcomes in online liberal arts coding classes. Method: To this end, a survey was conducted on 125 college students who took coding classes. SPSS/WIN 23.0 was used for data analysis, and multiple regression analysis was performed by using learning motivation, class content, and learning flow as independent variables, and inputting learning satisfaction and academic achievement as dependent variables. In order to find out the mediating effect of learning flow, a hierarchical regression analysis proposed by Baron and Kenny was conducted, and the significance of the mediating effect was additionally verified through the Sobel test. Results: In online liberal arts coding classes, learning motivation and class content were found to have a direct effect on academic achievement. There was no mediating effect of learning flow in the relationship between learn-ing motivation, class content, and academic achievement. In online liberal arts coding classes, learning flow was found to have a complete mediating effect in the relationship between learning motivation and learning satisfaction. In addition, learning flow was found to partially mediate between class content and learning satisfaction. Conclusion: Through this study, it can be confirmed that learning motivation and class content factors directly affect academic achievement and significantly affect learning satisfaction of online liberal arts coding classes through learning flow.

Analyzing the Effects of AI Education Program based on AI Tools

Aeri Lee J-INSTITUTE 2021 Robotics & AI Ethics Vol.6 No.2

Purpose: In recent years, AI technology has emerged as a core technology for the fourth industrial revolution. Along with the existing SW education, it is time to prepare for AI education, since the interest in AI education is also growing. The fact that learning about the theory and principles of AI is important is also stressed in the college education. However, non-major students tend to perceive AI technology to be difficult, and hence, a more efficient AI education is required. The purpose of this research is to guide the learners direction for AI education, helping them to break away from their fears of AI through the AI education appropriate for the learners’ level. Method: In this study, to analyze the effect of the developed educational program on the learners’ AI literacy, the dependent variables changed before and after the application of the program were analyzed, and the single group’s ex ante and ex post testings were applied for the designing method for inferring the causal relationship. Results: The AI literacy of undergraduate students was analyzed for the educational program via the ex ante and ex posts testings of a single group by operating this program. As a result of the analysis, significant results were obtained where all three areas of the AI literacy were improved through the educational program Conclusion: This study is meaningful in that the AI educational program was proposed for the liberal arts class at college for the non-majors, and that the AI educational program which is generally applicable for the liberal arts class was developed and directly applied to validate its effectiveness. Discussions are expected to continue to develop the various details of the AI basic education to ensure that the non-majors can enter the AI education without fearing the AI based on the results of this study.