• Title/Summary/Keyword: L2 Learning

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Lexical Discovery and Consolidation Strategies of Proficient and Less Proficient EFL Vocational High School Learners

  • Chon, Yuah Vicky;Kim, You-Hee
    • English Language & Literature Teaching
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    • v.17 no.3
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    • pp.27-56
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    • 2011
  • The analysis on the use of lexical discovery and consolidation strategies that have been researched within the area of vocabulary learning strategies (VLS) have not sufficiently drawn the interest of EFL practitioners with regard to vocational high school learners. The results, however, are expected to have implications for the design of vocabulary tasks and instructional materials for EFL learners. The present study investigates EFL vocational high school learners' use of lexical discovery and consolidation strategies with questionnaires, where the use of the learners' lexical discovery strategies were further validated with the think-aloud methodology by asking samples of proficient and less proficient learners to report on their reading process while reading L2 texts that had not been exposed to the learners. The results indicated that there were significant differences between the two groups of learners in the employment of 11 of the strategies which were in the categories of determination, social, memory, and metacognitive strategies, but not for cognitive strategies. The pattern of strategies indicated that different lexical discovery and consolidation strategies were employed relatively more by one proficiency group than another. The study suggests some implications for how strategy-based instruction can be implemented in EFL classrooms.

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Bibliography and the Cenventional Chinese Catalogue - Emphasis on the period prior to the Opium War- ('Bibliography'의 어휘와 '중국재래의 목록학' -특히 아편전쟁이전을 중심으로-)

  • Shim Woo-choon
    • Journal of the Korean Society for Library and Information Science
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    • v.4
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    • pp.27-42
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    • 1975
  • Usage and scope of the word Bibliography in comparison with in conventional Chinese Catalogue (中國 在來 目錄學) (1) Usage of the word in connection with the study of books in the West has been changed from 'writing of books' (17th century) to the meaning of 'study of a book as an object'(l8th century), and this meaning of the 18th century has been transmitted up to the present. (2) In its scope, 14 branches(eight in physical aspect, six in content of books) were set up independently for the study of a book as an object. On the other hand, the term Textual Bibliography(校수學) was in use in China before the Opium War, however the word Catalogue (目錄學) has been a current word for the subject study as in the case of Bibliography in the West. And in the scope of study of a book as an object, although some of its aspect is somewhat similar to the Occidental Bibliorgraphy, the main stream of learning is regregarded as the root and the physical aspects as branches and lea leaves, thus the latter has been treated with less importance.

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A Study on Competence for Digital Literacy of an Elementary School Pupils (초등학생의 디지털 리터러시 역량에 관한 연구)

  • Kim, Seon-Tae;Nam, Young-Ho
    • Journal of The Korean Association of Information Education
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    • v.12 no.2
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    • pp.151-161
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    • 2008
  • The use of ICT impacts positive effects on increasing scholarship achievement levels and on developing creativity, including teamworks, critical thinking skill, independence in learning and motivation of leaners. The purpose of this paper is to survey and analyze a competence for digital literacy of an elementary school pupils in Gyeongsangnam-do, and to compare the competence of the pupils with the competence of the pupils in Seoul. The results suggest that Gyeongsangnam-do's pupils have had the highest competence for social & cultural literacy and the lowest competence for information & technology literacy among three literacy. We also conclude that there is no a significant disparity between the competence of pupils in both regions.

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The effects of pause in English speaking evaluation

  • Kim, Mi-Sun;Jang, Tae-Yeoub
    • Phonetics and Speech Sciences
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    • v.9 no.1
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    • pp.19-26
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    • 2017
  • The main objective of this study is to investigate the influence of utterance internal pause in English speaking evaluation. To avoid possible confusion with other errors caused by segmental and prosodic inaccuracy, stem utterances with two different length obtained from a native speaker were manipulated to make a set of stimuli tokens through insertion of pauses whose length and position vary. After a total of 90 participants classified into three proficiency groups rated the stimuli, the scored data set was statistically analyzed in terms of the mixed effects model. It was confirmed that predictors such as pause length, pause position and utterance length significantly influence raters' evaluation scores. Especially, a dominating effect was found in such a way that raters gradually deducted scores in accordance with the increase of pause duration. In another experiment, a tree-based statistical learning technique was utilized to check which of the significant predictors played a more influential role than others. The findings in this paper are expected to be practically informative for both the test takers who are preparing for an English speaking test and the raters who desire to develop more objective rubric of speaking evaluation.

Mind and Spirit Seen by Human Nature and Life (성명(性命)으로 본 정(精)과 신(神))

  • Park, Jae-won;Kang, Jung-soo
    • Journal of Haehwa Medicine
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    • v.10 no.1
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    • pp.1-11
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    • 2001
  • Human nature, life, mind and spirit have very important meanings for Oriental medical science. This is because understanding human mind and spirit not only makes treatment of people easier and more accessible but also provides us a clue for finding out something we lost. As a consequence of investigating various classic books by ancient medical practitioners and Taoist scholars s as follows: l. Mind and spirit were valued very highly in Oriental medical science, and this can be found in classic books like , , , and . 2. To cure people, acquirement of detailed knowledge of mind and spirit should be preceded. 3. The Taoist school regarded mind, spirit, human nature and life as critical agents of health care and perceived that they were indispensable for going back to The Great Emptiness(Nothingness before the First Cause), the ultimate goal of Taoist learning. 4. Although human nature, life, mind and spirit have different names and different users, it is like theory and practice and we can see that ancient sages used them all in the same context of natural law.

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Prediction on the Negative Outcomes of Anger in Female Adolescents (청년기 여성의 분노 결과 예측모형)

  • 박영주;한금선;신현정;강현철;천숙희;문소현;이영식;김헌수
    • Journal of Korean Academy of Nursing
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    • v.34 no.1
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    • pp.172-181
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    • 2004
  • Purpose: This study was designed to construct a structural model for explaining negative outcomes of anger in female adolescents. Methods: Data was collected by questionnaires from 199 female adolescents ina female high school in Seoul. Data analysis was done with SAS for descriptive statistics and a PC-LISREL Program for Covariance structural analysis. Results: The fit of the hypothetical model to the data was moderate, thus it was modified by excluding 7 paths and adding free parameters to it. The modified model withthe paths showed a good fit to the empirical data($x^2$ =5.62, p=.69, GFl=.99, AGFl=.97, NFI=.99, NNFI=l.01, RMSR=.02, RMSEA=.00). Trait anger, state anger, and psychosocial problems were found to have a significant direct effect on psychosomatic symptoms. State anger, psychosocial problems, and learning behaviorswere found to have direct effects on depression of female adolescents. Conclusion: The derived modelis considered appropriate for explaining and predicting negative outcomes of anger in female adolescents. Therefore, it can effectively be used as a reference model for further studies and is a suggested direction in nursing practice.

A study on the prediction of injection pressure and weight of injection-molded product using Artificial Neural Network (Artificial Neural Network를 이용한 사출압력과 사출성형품의 무게 예측에 대한 연구)

  • Yang, Dong-Cheol;Kim, Jong-Sun
    • Design & Manufacturing
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    • v.13 no.3
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    • pp.53-58
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    • 2019
  • This paper presents Artificial Neural Network(ANN) method to predict maximum injection pressure of injection molding machine and weights of injection molding products. 5 hidden layers with 10 neurons is used in the ANN. The ANN was conducted with 5 Input parameters and 2 response data. The input parameters, i.e., melt temperature, mold temperature, fill time, packing pressure, and packing time were selected. The combination of the orthogonal array L27 data set and 23 randomly generated data set were applied in order to train and test for ANN. According to the experimental result, error of the ANN for weights was $0.49{\pm}0.23%$. In case of maximum injection pressure, error of the ANN was $1.40{\pm}1.19%$. This value showed that ANN can be successfully predict the injection pressure and the weights of injection molding products.

Design of Facility Crack Detection Model using Transfer Learning (전이학습을 활용한 시설물 균열 탐지 모델 설계)

  • Kim, Jun-Yeong;Park, Jun;Park, Sung Wook;Lee, Han-Sung;Jung, Se-Hoon;Sim, Cun-Bo
    • Proceedings of the Korea Information Processing Society Conference
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    • 2021.11a
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    • pp.827-829
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    • 2021
  • 현대사회의 시설물 중 다수가 콘크리트를 사용하여 건설되었고, 재료적 성질로 인해 균열, 박락, 백태 등의 손상이 발생하고 있고 시설물 관리가 요구되고 있다. 하지만, 현재 시설물 관리는 사람의 육안 점검을 정기적으로 수행하고 있으나, 높은 시설물이나 맨눈으로 확인할 수 없는 시설물의 경우 관리가 어렵다. 이에 본 논문에서는 다양한 영상장비를 활용해 시설물의 이미지에서 균열을 분류하는 알고리즘을 제안한다. 균열 분류 알고리즘은 산업 이상 감지 데이터 세트인 MVTec AD 데이터 세트를 사전 학습하고 L2 auto-encoder를 사용하여 균열을 분류한다. MVTec AD 데이터 세트를 사전학습시킴으로써 균열, 박락, 백태 등의 특징을 학습시킬 수 있을 것으로 기대한다.

Validation of Asiaticoside as Marker Compound of Centella asiatica Juice and Extract, and Its Antioxidant Activity (병풀(Centella asiatica) 착즙액과 추출물의 Asiaticoside 분석법 검증 및 항산화 활성)

  • Yeon Suk Kim;Hyun Young Shin;Eun Ji Ha;Ja Pyeong Koo;Se Bin Jeong;Gaeuleh Kim;Mi Yeun Joung;Kwang-Won Yu
    • The Korean Journal of Food And Nutrition
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    • v.36 no.2
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    • pp.93-102
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    • 2023
  • Centella asiatica (C. asiatica) has been widely used in food, cosmetics, and pharmaceutical industry as a functional material. In a previous study, we have investigated not only pharmacological effects such as antioxidative and anti-inflammatory effects, but also analyzed various functional ingredients. In this study, triterpenoids were analyzed using HPLC-DAD to determine marker compounds among functional ingredients. When triterpenoids were analyzed, asiaticoside from C. asiatica was determined as an optimal marker compound. Next, specificity, linearity, limited of detection (LOD), limited of quantification (LOQ), precision, accuracy, and range were evaluated using HPLC-DAD to determine asiaticoside contents in C. asiatica juice and extracts. The specificity was elucidated by chromatogram and retention time using an established analytical method. The coefficient of correlation obtained was 0.9996. LOD was 4.99 ㎍/mL and LOQ was 15.12 ㎍/mL. Intra- and inter-day precision of asiaticoside were determined to be 0.48~1.68% and 0.08~1.09%, respectively. Furthermore, the recovery rate of asiaticoside was 98.88% and the analytical range of Field-70E was determined to be 0.625~10 mg/mL. As a results of evaluating ABTS, DPPH, and FRAP antioxidative effect, Field-70E showed potent antioxidant activities. Results of this study could be used as basic data for quality standardization of C. astiatica juice and extracts.

A PRELIMINARY STUDY OF CHILDREN WITH LEARNING DISORDER IN KOREA (한국에서의 학습장애 아동에 대한 예비적 연구 - 종합병원 학습장애 특수 클리닉 내원 아동을 중심으로 -)

  • Kim, Seung-Tai;Kim, Ji-Hae;Hong, Sung-Do;Joung, Yoo-Sook
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • v.7 no.2
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    • pp.247-257
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    • 1996
  • This is a preliminary report on the first segment of a continuing and prospective teaming disorder study project in Korea. Study subjects were 197 children, aged between 6 and 15 referred for psychiatric evaluation of scholastic problems. Demographic data, psychiatric diagnoses and intelligence and achievement test results were reviewed and analyzed. Analyses of data lead to the following conclusions : (1) About 20.8% of children referred for scholastic problems were diagnosed of teaming disorder(LD). The most prevalent diagnosis among these children with scholastic problem was emotional disorder, especially depressive disorder(33%), (2) The comorbid rate of attention deficit/hyperactivity disorder(ADHD) of 41 children with LD was 44%, (3) Male/female ratio was 5.8:1 among all of the LD children, 17:1 among children with LD and ADHD and 3.6:l among children with LD but without ADHD, (4) 83% of children with LD scored above middle level on socioeconomic status(SES), (5) Age, SES, IQ, family psychiatric history, past history of medical and psychiatric illness, onset of age, pattern of peer relationship, number of friends, presence of adaptation problem and academic achievements of children with LD and ADHD compared to those of children with LD but without ADHD. No significant differences between two groups were found on age, SES, IQ, family psychiatric history, past history of medical and psychiatric illness, pattern of peer relationship, number of friends and presence of adaptation problem. However, there were significant differences in academic achievements of Korean language total, speaking and listening score, arithmetic score, social science score and music score of children with LD and ADHD compared to those of children with LD but without ADHD. Also there was an ealier onset of age in LD and ADHD group when compared to LD but without ADHD group.

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