A Case Study on Using Uncritical Inference Test to Promote Malaysian College Students' Deeper Thinking in Organic Chemistry

Kan, Su-Yin,Cha, Jeongho,Chia, Poh Wai Korean Chemical Society 2015 대한화학회지 Vol.59 No.2

In Malaysia, the students' poor performance in mathematics and sciences needs immediate attention and remedies. In order to tackle this problem, an active learning environment that encourages students' question-asking capability must be molded. Transformation from traditional teacher-based approach to active-learning classroom is the key to develop question-asking capability. The classroom activity that the authors used in this study is based on the uncritical inference test to promote students' deeper thinking which encouraged students to verify facts that was previously learnt in classroom through group discussion activity. Three sets of uncritical inference test were developed and applied to Malaysian college course of basic organic chemistry. Students' answers to the impact of using uncritical inference test with a group discussion on learning and communication skills were positive.

Symposia : Innate Immunity ; Cloning and expression of Tenebrio molitor Gram negative binding protein 1 and novel modular serine protease

( Su Jin Kim ),( Ji Won Park ),( Chan Hee Kim ),( Kyung Baeg Roh ),( Hyeon Hwa Lee ),( Kan Hong Nan ),( Jiang Rui ),( Hyun Mi Kwon ),( Ki Ju Kim ),( Nam Chul Ha ),( Bok Luel Lee ) 한국생화학분자생물학회 (구 한국생화학회) 2007 생화학분자생물학회 춘계학술발표논문집 Vol.2007 No.-

The Interactive Anonymous “Must-have” Quiz: A Simple Method to Enhance Students Concept Learning in Organic Chemistry Course

차정호,Su-Yin Kan,Poh Wai Chia 대한화학회 2016 대한화학회지 Vol.60 No.6

Effective mastering and learning of basic organic chemical concepts is pivotal to ensure students continue to excel to the higher levels of organic chemistry learning. Concept learning is crucial for first-year organic chemistry students so that they can comprehend and understand a concept better and able to make connection to problems. In the present paper, the authors have implemented the Interactive Anonymous Quiz (IAQ) with “must-have” features in the organic chemistry course as a teaching tool to instill students’ interest and enhance conceptual understanding in organic chemistry. The effectiveness of this activity was examined and evaluated through students’ reflective writing. Students showed positive learning outcome on the implemented activity as reflected by the reflective writings. In addition, this activity could be employed as an activity to check on students’ concept understanding, to instill students’ interest in organic chemistry course and to improve on students’ weakest topic in organic chemistry in the future classes.

Incorporation of Brainteaser Game in Basic Organic Chemistry Course to Enhance Students’ Attitude and Academic Achievement

차정호,Su-Yin Kan,Nurul Huda Abdul Wahab,Ahmad Nazif Aziz,Poh Wai Chia 대한화학회 2017 대한화학회지 Vol.61 No.4

Game shows are capable of grabbing students’ attention in a lecture, and at the same time offers much delight to students to learn in a more interesting and entertaining way. A mind game was developed and incorporated into the teaching of basic organic chemistry course at the Universiti Malaysia Terengganu. The modified brainteaser game is comprised of a set of problems associated with vocabulary or concepts in basic organic chemistry, whereby students were required to solve within a stipulated time frame. Students’ attitude changes were then evaluated with the administration of Attitude toward the Subject of Chemistry Inventory Version 2 (ASCIv2) questionnaire. The result of this study revealed that the intervention group experienced a significant change in attitude towards the course as compared to the control group. The intervention group also experienced a positive learning environment, resulting in an increased academic performance and interest.

“Spot the differences” Game: An Interactive Method That Engage Students in Organic Chemistry Learning

차정호,Su-Yin Kan,Poh Wai Chia 대한화학회 2018 대한화학회지 Vol.62 No.2

For the first time, the spot the differences (STD) game was employed in the teaching of basic organic chemistry course. Three sets of paired pictures associated with selected topics in organic chemistry were presented to the students and they were required to spot the differences between the two pictures. Based on the students’ pre and post self-assessment, the STD game resulted in several positive learning outcomes as indicated in the students’ reflective writing, including knowledge recall, deeper understanding of a subject, enhanced analytical skill, motivation and fun-filled learning, learning from peers and self-empowerment in learning. The STD game is a desirable teaching and learning tool, as learning in an entertaining and interactive way is highly sought after in today’s classroom, especially to novice students. In the future, the STD game can be modified and implemented to cater the needs of different courses and topics.

College Students’ Reflection on the Uncritical Inference Test Activity in Organic Chemistry Course

Cha, Jeongho,Kan, Su-Yin,Chia, Poh Wai Korean Chemical Society 2016 대한화학회지 Vol.60 No.2

Effective teaching and learning is a continuous process of monitoring and re-organization of teaching method, so to benefit both students and educators. Reflective journal writing is an effective method for students to reflect on their learning experience about a new concept or subject taught and at the same time enables educators to improve on their academic skills. In the present paper, we have examined and evaluated the effectiveness of the Uncritical Inference Test (UIT) that was conducted in our basic organic chemistry course through a systematic network built based on students’ reflective writing. From the data analysis, the UIT has benefited students in three dimensions, namely cognitive, affective and group learning domains. Moreover, the UIT activity instilled an active learning environment in organic chemistry classroom and deeper learning among chemistry students as shown in the collected data. In future, this activity could be adapted as a teaching method to enhance students’ critical thinking skills and question-asking capability in other teaching courses.

해상풍력용 3-level 3상 NPC Inverter 데드타임 보상방법

간용(Yong Kan),김한수(Han-Su Kim),홍석진(Seok-Jin Hong),이희준(Hee-Jun Lee),원충연(Chung-Yuen Won) 한국조명·전기설비학회 2014 한국조명·전기설비학회 학술대회논문집 Vol.2014 No.5

The Interactive Anonymous "Must-have" Quiz: A Simple Method to Enhance Students Concept Learning in Organic Chemistry Course

Cha, Jeongho,Kan, Su-Yin,Chia, Poh Wai Korean Chemical Society 2016 대한화학회지 Vol.60 No.6

Effective mastering and learning of basic organic chemical concepts is pivotal to ensure students continue to excel to the higher levels of organic chemistry learning. Concept learning is crucial for first-year organic chemistry students so that they can comprehend and understand a concept better and able to make connection to problems. In the present paper, the authors have implemented the Interactive Anonymous Quiz (IAQ) with "must-have" features in the organic chemistry course as a teaching tool to instill students' interest and enhance conceptual understanding in organic chemistry. The effectiveness of this activity was examined and evaluated through students' reflective writing. Students showed positive learning outcome on the implemented activity as reflected by the reflective writings. In addition, this activity could be employed as an activity to check on students' concept understanding, to instill students' interest in organic chemistry course and to improve on students' weakest topic in organic chemistry in the future classes.

Antioxidant anthraquinones and flavonoids from the flower of Reynoutria sachalinensis

Bae KiHwan,Kan Sam Sik,Sok Dai Eun,Su Nguyen Duy,Thuong Phuong Thien,Zhang Xinfeng 대한약학회 2004 大韓藥學會 總會 및 學術大會 Vol.2004 No.1

자궁내막암의 수술 후 방사선치료 결과에 영향을 미치는 예후인자

기용간(Yong Kan Ki),권병현(Byung Hyun Kwon),김원택(Won Taek Kim),남지호(Ji Ho Nam),윤만수(Man Su Yun),이형식(Hyung Sik Lee),김동원(Dong Won Kim) 대한방사선종양학회 2006 Radiation Oncology Journal Vol.24 No.2

목 적: 수술 후 보조적으로 방사선치료를 받은 자궁내막암 환자의 전체생존율, 무병생존율, 재발 부위 등을 분석하 여 이와 관련된 예후인자를 알아보고자 하였다. 대상 및 방법: 1992년 4월부터 2003년 5월까지 부산대학교병원에서 수술 후 방사선치료를 받은 자궁내막암 환자중 조직유형이 선암인 환자 54명을 대상으로 후향적 분석하였다. 전체 환자의 중앙 나이는 55세(35∼76세)였고, 병기 분포는 FIGO 병기 I군이 34명(63.0%), 병기 II군이 8명(14.8%), 병기 III군이 12명(22.2%)이었다. 모든 환자는 수술 및 외부 방사선조사(41.4∼54.0 Gy, 중앙값 50.4 Gy)를 받았고, 20명(전체 환자의 37.0%)의 환자에서 추가로 질내 근접치료(15.0∼24.0 Gy, 중앙값 15.0 Gy)를 받았다. 전체추적기간은 5∼115개월로 중앙추적기간은 35개월이었다. 분석 결과 유의인자로 나타난 조직분화도(histologic grade), 림프-혈관 침범 ymphovascular space invasion), 그리고 자궁근 침범 정도(myometrial invasion depth)를 점수화(GLM 점수)하여 생존분석을 시행하였다. 생존분석은 Kaplan-Meier 법을, 단변량 및 다변량 통계분석은 각각 log-rank 검정과 Cox 회귀분석을 사용했다. 결 과: 전체 자궁내막암 환자의 5년 생존율은 87.7%였고, 5년 무병생존율은 87.1%였다. 단변량 통계분석에서는 조 직분화도, 림프-혈관 침범, 그리고 자궁근 침범 정도가 전체생존율 및 무병생존율과 관련 있는 인자였고, 다변량 통계분석에서는 림프-혈관 침범이 무병생존율과 관련 있는 인자였다(p=0.0158). GLM 점수는 전체생존율 및 무병 생존율과 의미 있는 관계를 나타냈고(각각 p=0.0090, p=0.0073), 원격재발에도 유의한 예후인자로 나타났다(p=0.0132). 전체 환자 중 6명(11%)의 환자에서 재발을 보였고, 재발 부위는 대동맥 림프절 2명, 폐 2명, 쇄골상부림프절 1명, 질 1명이었다. 결 론: 수술 및 수술 후 방사선치료를 받은 자궁내막암 환자의 예후는 수술 후의 병리 소견과 밀접한 관계를 가지 고 있다. 더 많은 연구를 통해 자궁내막암 환자의 예후인자를 체계화한다면, 병의 진행양상을 예견하고 대처하는데 도움이 될 것이다. Purpose: This study was performed to determine the prognostic factors influencing relapse pattern, overall and disease-free survival in patients treated with postoperative radiotherapy for endometrial carcinoma. Materials and Methods: The records of 54 patients with endometrial adenocarcinoma treated postoperative radiotherapy at Pusan National University Hospital between April 1992 and May 2003 were reviewed retrospectively. Median age of the patients was 55 (range 35∼76). The distribution by surgical FIGO stages were 63.0% for 0Stage I, 14.8% for Stage II, 22.2% for Stage III. All patients received postoperative external radiotherapy up to 41.4∼54 Gy (median: 50.4 Gy). Additional intravaginal brachytherapy was applied to 20 patients (37.0% of all). Median follow-up time was 35 months (5∼115 months). Significant factors of this study: histologic grade, lymphovascular space invasion and myometrial invasion depth were scored (GLM score) and analyzed. Survival analysis was performed using Kaplan-Meier method. The log-rank test was used for univariate analysis and the Cox regression model for multivariate analysis. Results: 5-year overall and disease-free survival rates were 87.7% and 87.1%, respectively. Prognostic factors related with overall and disease-free survival were histologic grade, lymphovascular space invasion and myometrial invasion according to the univariate analysis. According to the multivariate analysis, lymphovascular space invasion was associated with decreased disease-free survival. GLM score was a meaningful factor affecting overall and disease-free survival (p=0.0090, p=0.0073, respectively) and distant recurrence (p=0.0132), which was the sum of points of histologic grade, lymphovascular space invasion and myometrial invasion. Total failure rate was 11% with 6 patients. Relapse sites were 2 para-aortic lymph nodes, 2 lungs, a supraclavicular lymph node and a vagina. Conclusion: The prognosis in patients with endometrial carcinoma treated by postoperative radiotherapy was closely related with surgical histopathology. If further explorations confirm the system of prognostic factors in endometrial carcinoma, it will help us to predict the progression pattern and to manage.