인공지능 기반 맞춤형 학습이 농촌지역 학생들의 수학학습에 미치는 효과

황지유(Jee-you1 Whang),이철현(Chul-Hyun Lee) 경인교육대학교 교육연구원 2024 교육논총 Vol.44 No.1

본 연구는 코로나 19로 심화된 학습격차를 해소하고 학습자의 자기주도성을 강화하기 위한 대안으로 인공지능 기반 맞춤형 학습을 제안하고, 그 효과를 검증하기 위해 수행되었다. 특히 교육 인프라가 부족한 농촌지역에서도 인공지능 기술로 질 높은 공교육을 보장하기 위한 목적에서 시작되었다. 인공지능 활용 교수ㆍ학습모델과 데이터 기반 맞춤형 수업 원리를 적용하며, 한 학기 수학 정규 교과 시간과 방과후 교과보충 집중 프로그램 시간에 집중적으로 이루어졌고, 가정학습과도 연계하였다. 인공지능 기반 맞춤형 학습은 단원 시작 전 선수학습 개념 이해 정도를 확인하는 AI 진단평가와 단원 차시별 AI 기반 문제 추천 학습 그리고 단원 마무리 AI 평가 및 보충학습의 과정으로 진행되었고, 효과를 분석하기 위해 실험 적용 전 후 학업성취도와 학습태도 그리고 자기주도성 검사를 실시하였다.데이터 분석 결과, 인공지능 맞춤형 수학학습이 수학 학업성취도, 학습태도 그리고 자기주도학습 능력 향상에 긍정적인 영향을 미친 것으로 나타났다. 그러나 여전히 문제 풀이 위주의 파편화된 학습이라는 제한점을 지니고 있으므로 학습자의 지속적이고 통합적인 성장을 지원하기 위한 방향에서 인공지능 교육 실천방안을 모색해야 할 것이다. This study was conducted to propose customized learning methods based on artificial intelligence as an option to bridge the learning gap caused by COVID-19 and strengthen the learners' self-learning methods, as well as verify their effectiveness. In particular, the study was conducted with the aim of ensuring high-quality public education with AI technology in rural areas, where educational infrastructure is insufficient. The AI-based customized learning assistance consisted of an AI diagnostic assessment to examine the level of understanding of the prerequisite concepts before starting a study unit, AI-based problem recommendations on learning by the level, and AI assessment and supplementary learning aid at the end of the unit. Before and after conducting of the study, the math academic achievement, math learning attitude, and math self-directed learning ability were tested to examine the effectiveness of the program.The results of the data analysis showed that AI-customized math learning had a positive effect on improving the math academic achievement, learning attitude, and self-directed learning ability. However, it is still limited as to fragmented learning based on problem solving, and it is necessary to explore the AI education practices which would support continuous and integrated growth of math learners.

淸上補下丸이 黑色腫의 肺轉移 抑制 및 免疫調節作用에 미치는 影響

河智容,劉炳吉 대한한방종양학회 1998 대한한방종양학회지 Vol.4 No.1

1. 연구 배경 최근 놀라운 과학기술의 발전에 힘입어 난치병이라고 생각되어 오던 질환들이 하나씩 정복되어 가고 있으나 평균수명의 연장, 생활수준 향상으로 인한 고지방식, 스트레스 및 과학기술발전의 부작용 등을 이유로 새로운 질환들이 나타나고 있는 실정이다. 종양도 이런 대표적인 질환중 하나로 최근 경제적, 시간적으로 많은 투자를 해왔으나 아직까지 그 발생원인이나 성장기전 등이 자세히 밝혀지지 않았다. 이에 본 연구는 哮吼를 치료하는 淸上補下丸을 이용하여 흑생정의 폐전이 억제능과 이에 의한 면역증강에 관하여 연구하고자 하였다. 2. 연구결과 B-16세포를 이용한 C57BL/6계 마우스에 있어서의 폐전이 억제능을 측정한 결과 淸上補下丸 투여군이 대조군에 비해 검액처리 7일후에는 52.70%, 14일후에는 19.43%의 유의성있는 억제율을 보였으며, 淸上補下丸의 B-16 세포에 대한 직접적인 항암작용을 알아 보기 위한 시험관내 세포독성 실험에서는 淸上補下丸의 용량이 5ug/well, 2.5ug/well, 1.25ug/well, 0.625ug/well인 경우 유의성있는 효과를 얻을수 있었으며 생존율에 의한 IC_50은 2.17ug/well이었다. NK-activity를 측정한 결과 淸上補下丸 투여군이 작동세포와 표적세포의 비율이 100:1, 50:1의 경우에 있어서 72.63±5.17%, 26.94±2.43%를 보여 대조군에 비하여 각각 31.12%, 43.68% 유의성있는 증가를 보였다. IL.2의 생산능을 측정한 결과 淸上補下丸 투여군은 l392.00±22.3lpg/ml을 보여 대조군에 비해 4.04%의 유의성있는 증가를 보였다. In order to investigate the antitumor effect by Chungsangbohahwan after B-16 cells were transplanted in C57BL/6 mice, and the immune responses in mice induced by methotrexate, the extract of Chungsangbohahwan sas orally administered to the mice for 21 days. Experimental studies were performed for measurce of metatasis, cell cytotoxicity in vitro, natura killer cell activity, productivity of interleukin-2. The results were summarized as follows: 1. Inhibition of metastasis in Chungsangbohahwan-treated group was higher than control group woith significance on 7th day and 14th day. 2. On the MTT assay, cell viability was signigicantly inhibited by 5ug/well, 2.5ug/well, 1.25ug/well, and 0.625ug/well of Chunganbohahwan concentration inbited cell viiability sifnificantly(P<0.05). IC_50 for cell viability was 2.17ug/well. 3. Matural killer cell activity in Chungsangbohahwan-treated group was significantly incresed on 100:1, 30:1 E/T(effect ce;;/target ce;;) rato(P<0.05). 4. Produciton of interleukin-2 in Chungsangbohahwan-treated group was significantly increased(P<0.05).

복수과 진료 환자의 중복 처방에 대한 분석 및 평가

이지은,장혜경,오지영,유윤경,김현지,임숙인,연숙희,강진숙,최귀령 한국병원약사회 2003 병원약사회지 Vol.20 No.1

In an aging society, there is an increasing possibility of the duplication of the drugs given to patients because they take many kinds of drugs. Among the prescriptions given to the patients who was treated at multiple ambulatory clinics in St. Mary's hospital for one month of September, 2002, in which drugs that has identical or similar effects are prescribed, we analysed and evaluated them by patients' characteristics, kinds of medication, severity of side effects on a case by case basis. More, we assessed the potential additional costs. As a result of this study, the duplication rate turned out to be 6.69% and it was shown that the proportion of the elderly patients over 60 was high. The gastro-intestinal medications took up a large part and most of the cases showed that the danger caused by double taking of medicine was slight, but there were some examples in which the serious side effects were predicted. Expected additional costs were the average 11.349 won and it ranges from the minimum of 56 won to the maximum of 135,720 won. In conclusion, the management of drug histories of the patients who need the plural treatments is very important and the necessity of the individual and professional guidance of taking medicines for the elderly patients is emerged, too.

학교행정가의 리더십과 핵심역량에 대한 인식 연구

조경원,한유경,서경혜,조정아,이지은 이화여자대학교 교육과학연구소 2006 교육과학연구 Vol.37 No.1

21세기 지식정보화 사회는 전통적인 학교교육의 변혁을 요구한다. 이에 학교교육 개혁을 성공적으로 이끌어 나아갈 수 있는 교원의 리더십 특히 학교행정가의 리더십이 절실히 요구되고 있다. 그렇다면 지식정보화 사회에서 요구되는 학교행정가의 리더십이란 무엇이며 어떤 역량을 포함하는가? 본 연구는 학교행정가의 리더십과 핵심역량에 대한 선행연구가 학교 현장과는 유리된 채 이론적, 당위적 수준에 그치고 있다는 문제의식에서 출발하여 학교행정가의 리더십을 구성하는 핵심역량이 무엇인가에 대한 교사, 교감, 교장, 행정실장 및 서무부장의 인식을 파악하고 이들 집단의 인식을 비교 분석하는 데 목적을 두었다. 이를 위해 우선 문헌연구를 통해 리더십에 대한 관점과 개념의 변화를 고찰하였고 변혁적 리더십 관점에 기초하여 학교행정가가 갖추어야 할 핵심역량으로 교육적 리더십, 학교 계획 및 조직, 학교교육과정 편성 및 운영, 학교운영, 인적자원 개발, 학교재정 관리, 교육법 이해 및 집행, 학교교육정책 이해, 학교·학부모 및 지역사회 협력, 정보통신기술 활용과 같은 열 가지 역량을 도출하였다. 문헌연구를 통해 도출된 핵심역량에 대한 학교 현장의 관점을 알아보기 위해 초·중·고등학교 교직원을 대상으로 10대 핵심역량의 중요도와 현재 실행정도에 대해 설문조사를 수행하였다. 설문조사에는 144개 학교의 교직원 1,136명이 참여하였다. The purpose of this study is to investigate the perspectives of teachers, vice-principals, and school staff on school administrators' leadership and core abilities. For this purpose, first, we examined the perspectives and concepts of school administrator's leadership and identified 10 core abilities that constitute the school administrator's leadership. Second, we developed a questionnaire to investigate the perspectives of teachers, vice-principals, and school staff on to what extent the 10 core abilities are important and whether their school administrators actually exert these 10 core abilities. Finally, we conducted a survey research, including teachers, vice-principals, and school staff with various years of experiences in elementary and secondary schools in Korea. The findings show that teachers, vice-principals, principals, and school staff consider the 10 core abilities very important for school administrators. However, they perceive that school administrators, in reality, do not exert the 10 core abilities as much as they think these abilities are important. In particular, teachers rated school administrators' leadership relatively low compared to principals, vice-principals, and school staff. The difference between their perception on the importance and exertion of 10 core abilities indicates the need for programs that promote the development of 10 core abilities for school administrators and consequently support the development of school administrator's leadership.

Type I Interferon System during the Ovulatory Process in Rat: Gonadotropin Stimulation and Effect on Cumulus Expansion

You-Jee Jang,Sang-Young Chun,Jae-Il Park,Moon-Hyoung Cho 한국동물생명공학회(구 한국동물번식학회) 2012 발생공학 국제심포지엄 및 학술대회 Vol.2012 No.1

Investigation of Resolution Enhancement by Using Interferometric Immersion Lithography with a Lloyd Mirror

Jee-Hye You,Hye-Keun Oh,Seung-Wook Park,Young-Min Kang 한국물리학회 2009 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.54 No.6

The minimum feature size of semiconductor devices will be smaller and smaller because of the increasing demand for high integration of such devices. The resolution limit of an optical lithography system is described by Rayleigh's criterion. While it is hard to achieve a small critical dimension by reducing the illumination wavelength and the processing-dependent factors, the critical dimension can be reduced by increasing the refractive index of the material between the lens and the wafer. We have used an interferometric immersion lithography system. This system uses a Lloyd mirror for interference between the 1st and the -1st diffraction order and deionized water with a refractive index of 1.437 at 193 nm. The experimental result showed that immersion lithography, compared to conventional dry lithography, improved not only the resolution but also the depth of focus. The simulation result confirmed this behavior, showing a larger depth of focus for immersion compared to dry lithography. Also, the linewidth with immersion lithography was smaller than the linewidth with dry lithography.

Position Shift Analysis in Resist Reflow Process for Sub-50 nm Contact Hole

You, Jee-Hye,Park, Joonwoo,Park, Joon-Min,Jeong, Heejun,Hong, Joo-Yoo,Oh, Hye-Keun IOP Publishing 2009 Japanese journal of applied physics Vol.48 No.r9

Poster Ⅲ : Photoaffinity labeling of the rat liver microsomal ATP translocase with an A · N - ATP

Jee Ho You,Jae Chul Pyun,Jong Sang Park 생화학분자생물학회(구 한국생화학분자생물학회) 1992 추계학술대회집 Vol.- No.-

우하복부 통증 환자에서 충수 전산화 단층촬영의 유용성

유지만(Jee Man You),이정균(Jeung Kyun Lee),박원철(Won Cheul Park),강동백(Dong Baek Kang),윤성언(Sung eun Yoon),윤기중(Ki Jung Yoon) 대한외과학회 2007 Annals of Surgical Treatment and Research(ASRT) Vol.72 No.2

Purpose: This study was performed to evaluate the contribution of appendiceal computed tomography (CT) in the more accurate diagnosis of acute appendicitis and decrease in the rate of negative appendectomies. Methods: Between May and August 2005, 146 patients with right lower quadrant (RLQ) abdominal pain and tenderness were diagnosed using appendiceal CT. The appendiceal CT scans were performed with contrast media in the abdominal and pelvic areas. 7 ㎜ slice scans were taken both before and after the contrast media injection, with a time delay. The control group was comprised of 99 patients, who were also checked by abdominal CT or ultrasonography, between December 2004 and April 2005, with the data analyzed retrospectively. Results: In the study group, 85 of the 146 cases were diagnosed with acute appendicitis on appendiceal CT, and had undergone an appendectomy, including 42 men (mean age 39.9 yr) and 43 women (mean age 44.6 yr). The sensitivity and specificity of appendiceal CT in acute appendicitis were 95.3 and 98.4%, respectively. There were 4 (4.7%) negative appendectomy cases; 2 in men and 2 in women. The control group conprised of 47 men and 52 women. There were 13 (13.1%) negative appendectomy cases; 4 in men and 9 in women. Conclusion: The routine use of appendiceal CT, in patients with RLQ abdominal pain and tenderness, resulted in a significant decrease in the negative appendectomy rate.

자기효능감과 자아탄력성이 초등학생의 학습된 무기력에 미치는 영향

유지영 ( Jee Young You ),김춘경 ( Choon Kyung Kim ) 한국정서·행동장애아교육학회(구 한국정서학습장애아교육학회) 2014 정서ㆍ행동장애연구 Vol.30 No.1

본 연구는 초등학생의 자기효능감과 자아탄력성이 학습된 무기력에 미치는 영향을 밝히고자 하였다. 연구대상은 초등학교 4, 5, 6학년 809명이었고 학습된 무기력, 자기효능감, 자아탄력성 설문지를 실시하였다. 자료분석은 SPSS 14 통계처리프로그램으로 연구대상의 일반적 특성을 확인하였고, 학습된 무기력, 자기효능감, 자아탄력성 간의 Pearson 상관계수, 학습된 무기력, 자기효능감, 자아탄력성 간의 중다회귀분석을 실시하였다. 자기효능감과 자아탄력성이 초등학생의 학습된 무기력에 미치는 영향을 분석한 결과, 첫째, 자기효능감과 자아탄력성은 학습된 무기력과 부적 상관이 있는 것으로 나타났다. 둘째, 자기효능감의 하위변인인 자신감과 자기조절 효능감은 초등학생의 학습된 무기력에 영향을 미치는 것으로 나타났다. 셋째, 자아탄력성의 하위변인인 친구관계, 활력성, 감정통제는 초등학생의 학습된 무기력에 영향을 미치는 것으로 나타났다. 넷째, 학습된 무기력의 하위변인에 대한 자기효능감과 자아탄력성의 하위변인의 영향력을 분석한 결과, 자기효능감의 하위변인인 자신감과 자아탄력성의 하위변인인 활력성, 친구관계가 학습된 무기력의 하위변인에 많은 영향을 미치는 것으로 나타났다. 이러한 연구결과가 학습된 무기력 수준이 높아서 다양한 정서, 행동적 문제를 가진 초등학생들을 지도하는 교사나 상담사에게 주는 시사점을 논의하였으며, 후속연구를 위한 제언을 하였다. The purpose of this study was to analyse the effects of self-efficacy, self-resilience on learned-helplessness of Elementary school students. The Participants were 809 4th~6th elementary school students and learned-helplessness, self-efficacy, self-resilience were measured with questionnaire based on several studies. The data analyzed by using frequence, percentage, Pearson correlation, multiple regression. The research findings were as follows. First, There were negative correlations between learned-helplessness with self-efficacy and self-resilience. Second, Subordinate concept, confidence and efficacy of self-adjustment of self-efficacy have effects on learned-helplessness of elementary school students. Third, Subordinate concept, relationship of friend, vitality, emotion-control of self-resilience have effects on learned-helplessness of elementary school students. Forth, Subordinate concept, confidence of self-efficacy and vitality, relationship of friend of self-resilience have effects on subordinate concept of learned-helplessness. The results of the study showed that learned-helplessness of elementary school students is decreased by increasing self-efficacy, self-resilience to theaters and therapists. Finally, implications for future studies and the limitations of this study were descussed.