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The Role Reading Fluency Plays in Reading Abilities of Advanced Korean EFL Readers
송주하 현대영어교육학회 2021 현대영어교육 Vol.22 No.3
The current study aimed to explore the effects of reading fluency on reading comprehension abilities. In doing so, different levels of reading fluency (i.e., word and text level) and different measures of reading fluency (i.e., oral and silent reading fluency) were considered. A total of 31 advanced Korean EFL readers in high schools were opted for, and the data were analyzed with hierarchical and multiple regression analyses. The results showed that oral reading fluency, which includes word and text level reading fluency, did not take up unique variance when silent reading fluency and vocabulary knowledge were taken into consideration. However, these results were mainly attributed to word reading fluency, revealing that text level reading fluency was a significant contributor to reading abilities. To be specific, while both oral and silent text level reading fluency took up additional predictive power when controlling for each other, the predictability of the latter was larger than that of the former. These results imply that for advanced readers, rapid reading of a passage silently as well as orally will positively affect their reading comprehension abilities, while silent text reading fluency has a more crucial role in boosting their reading abilities.
2015 고등 영어과 개정교과서 통사적 복잡성 및 이독성 비교 분석
송주하 현대영어교육학회 2021 현대영어교육 Vol.22 No.1
The present study compared the reading passages represented in prescribed English textbooks (High School English 0) and non-prescribed textbooks (High School English 1, 2) used in Korean high schools through lexical complexity and readability. To achieve this purpose, the L2 Syntactic Complexity Analyzer (L2SCA) and three different readability indices, Flesch-Kincaid Grade Level (FKGL), Flesch Reading Ease score (FRE), and Gunning Fog Index (GFI), were utilized. One-way ANOVA and a post-hoc test (Scheffe Test) were performed on 76 passages for High School English 0, and 53 for High School English 1 and 2. Results showed that in terms of syntactic complexity, no statistical differences were found between High School English 0 and 1. On the contrary, High School English 0 and 2 differed across every syntactic complexity measure, and 5 out of 14 measures were significantly different between High School English 1 and 2. With regard to readability, significant differences were observed among the textbooks (i.e., High School English 0/1, 1/2, and 0/2). These results imply more syntactic variation is required between High School English 0 and 1, but that hierarchy is properly being maintained for readability levels across the 2015 revised high school English textbooks.
2015 개정 중3ᆞ고1 영어교과서 및 고1 모의고사 읽기 지문 분석: 통사적 복잡성과 이독성을 중심으로
송주하 ( Song Juha ),김주희 ( Kim Joohee ) 한국중등영어교육학회 2021 중등영어교육 Vol.14 No.2
The current study aimed to compare the reading passages in the prescribed textbooks (Middle School English 3 and High School English 1) and in high school 1st graders’ National Achievement English tests (mock tests) implemented for three consecutive years (2018-2020). In doing so, the L2 Syntactic Complexity Analyzer (L2SCA) and two dissimilar readability indices, Flesch-Kincaid Grade Level (FKGL) and Flesch Reading Ease (FRE), were utilized. One-way ANOVA and a post-hoc test (Scheffe test) were conducted on 104 passages for Middle School English 3, 92 for High School English 1, and 276 for the mock tests. The results revealed that the reading passages in the mock tests were syntactically the most complex across the 14 measures. In addition, in terms of readability, much greater difference was observed between the Middle School English 3 and the mock tests than between the Middle School English 3 and High School English 1. These results imply that the difficulty levels in the textbooks should be adjusted and that similar to the high school setting, a mock test needs to be considered for the middle school, so that learning burden of students can be lessened.
Production of HMF using Catalyst Recycling System
김민욱,송주하,박찬필 한국공업화학회 2016 한국공업화학회 연구논문 초록집 Vol.2016 No.1
Recently, environmental pollution and energy shortage are issues in the world. For these reasons, many scientists have been interested in biomass which can be used as the source of energy. Furan derivatives obtained from renewable carbohydrates is potential substitutes for petroleum-based building blocks. 5-Hydroxymethylfurfural (HMF) can be derived from dehydration of certain sugars such as fructose, glucose and xylose. Micro-reactor has the many attractive merit of using rather than a conventional reactor, which is better control of reaction conditions, improved safety, rapid reaction rate and portability. In this study, we experiment HMF production through a dehydration reaction of an fructose using a variety acid catalyst. In addition, we have developed a catalyst recycling system through the Micro-reactor. By the use of these catalyst recycle systems, it is possible to 1.96mmol of HMF can be produced per one day.
First detection of West Nile virus in domestic pigeon in Korea
김경설,Hanseul Oh,송주하,Moonsuk Hur,Jae-Hwa Suh,정원화,Jong-Taek Kim,Hong-Shik Oh,Jae-Hak Park 대한수의학회 2016 Journal of Veterinary Science Vol.17 No.4
West Nile virus (WNV) is a mosquito-borne zoonotic pathogen that has spread throughout Europe and the United States. Recently, WNV spreadto East and Southeast Asia, and great efforts have been made in South Korea to prevent the spread of WNV from neighboring countries. Inthis study, we diagnosed the first case of WNV in pigeons (Columba livia domestica) residing in cities using a competitive enzyme-linkedimmunosorbent assay and confirmed it with nested reverse transcription polymerase chain reaction analysis and sequencing. This is the firstreport to provide convincing evidence that WNV is present within South Korea.