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Cardoso-Martí,nez, Faviola,de la Rosa, José,M.,Dí,az-Marrero, Ana R.,Darias, José,Cerella, Claudia,Diederich, Marc,Cueto, Mercedes The Royal Society of Chemistry 2015 Organic & Biomolecular Chemistry Vol.13 No.26
<P>Tanzawaic acids M (<B>1</B>), N (<B>2</B>), O (<B>3</B>) and P (<B>4</B>) and the known tanzawaic acids B (<B>5</B>) and E (<B>6</B>), have been isolated from an extract of a cultured marine-derived fungus (strain CF07370) identified as a member of the genus <I>Penicillium</I>. The structures of <B>1–4</B> were determined based on spectroscopic evidence. The antimicrobial and cytotoxic activities of compounds <B>1–6</B> were evaluated.</P> <P>Graphic Abstract</P><P>Tanzawaic acids M (<B>1</B>), N (<B>2</B>), O (<B>3</B>) and P (<B>4</B>) were isolated from an extract of a cultured marine-derived fungus (strain CF07370) identified as a member of the genus <I>Penicillium</I>. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c5ob00773a'> </P>
( Daria Soon Young Suk ),( Yae Sheik Lee ) 범태평양 응용언어학회 2001 Journal of Pan-Pacific Association of Applied Ling Vol.5 No.2
The purpose of this paper is to show how lexical and conceptual representation may be structured in the lexicon of Korean English (L2) users of high proficiency based on the data obtained from the currently used 7th grade English textbooks in Korea. For this purpose, nine out of the thirteen English textbooks, recently approved by the Ministry of Education in Korea for the 7``h National Curriculum applicable from the year 2001 for 5 years, were analyzed in terms of misusage. Pilot studies were conducted for those expressions in question and the confirmed misused expressions were then categorized according to their misusage type. Findings from this research show existence of misusage due to Ll (Korean) influence on L2 (English) even for the highly proficient adult L2 users, in this case, the textbook authors. Evidence is given in support of Kroll``s (1993) revised lexical and conceptual representation of cross language connection for bilinguals who are very fluent in L2 and De Groot``s (1993) idea of a mixed representational system within a bilingual memory.
Use of English Futures, Will vs. Be Going to: A Corpus-Based Comparison Study
Daria Soon-Young Seog(석데리아순영),Yae-Sheik Lee(이예식),Incheol Choi(최인철) 현대문법학회 2019 현대문법연구 Vol.102 No.-
The present study investigates usage of English futures, will and be going to, by Korean EFL learners and American native English speakers. The examined usage data are extracted from the native speaker corpus, the Corpus of Contemporary American English (COCA), and two learner corpora, the Kyungpook National University (KNU) Student English Learner Corpus-Written (KSELC-W) and the KNU English Learner Corpus (KELC), and compared to determine interlanguage developmental patterns and usage similarities or differences between native speakers and nonnative speakers. In support of existing literature, the findings from the current study reveal that the American native English speakers of COCA significantly overuse both will and be going to in the spoken register compared to the combined written registers. Furthermore, the findings also indicate that although the writing samples of the learner corpora were written during formal EFL education settings, will and be going to usage by the Korean EFL learners closely resemble the usage data of the combined written-all registers of COCA. Finally, semantic analyses show that the advanced learners of KSELC-W use be going to quite correctly with the semantic senses in the present form. In contrast to the learners in Coates (1983), they use be going to to deliver the sense of epistemicity rather than the root intention senses.
Semantics in English Article Usage by Korean EFL Learners: A Corpus-Based Study
Daria Soon-Young Seog(석순영) 현대문법학회 2018 현대문법연구 Vol.97 No.-
The present study investigates the semantics involved in the L2 English article use by Korean EFL learners. The examined usage data were extracted from the researcher compiled learner corpus, the Kyungpook National University Student English Learner Corpus-Writing (KSELC-W). The importance of current research is in the fact that the investigated data was not collected through formal elicitation tasks or grammar focused activities. Therefore, the learner corpus data represent Korean EFL learners unconscious knowledge of the English article system and their performance on timed writing sessions which did not focus on grammar. The findings reveal that Korean EFL learners do not make random misuse or overuse errors in production of English articles the and a(n) and that the patterns are in accordance with the Fluctuation Hypothesis. Additionally, results show that the semantic feature specificity effects the Korean EFL learners in the current study and provide supporting data for direct UG access underlying article choice. These results support previously reported findings by Ionin et. al. (2004, 2009) and Ko et al. (2009).
Accuracy order of grammatical morphemes of Korean EFL learners: Disparities among the same L1 groups
( Daria Soon Young Seog ) 경희대학교 언어정보연구소 2015 언어연구 Vol.32 No.S
Studies questioning the proposed invariant natural order of second language (L2) morpheme acquisition have reported evidence of strong first language (L1) effects on the acquisition order of L2 English grammatical morphemes. In view of these findings, the current study investigated disparities in the morpheme acquisition orders of different groups with the same L1 Korean background. First, this study examined 173 writing samples written by Korean elementary school students learning English as a foreign language (EFL) to investigate the acquisition order of eight grammatical morphemes. Afterwards, the revealed order was compared to the findings from previous studies conducted with L1 Korean groups. The results showed that the acquisition order of the Korean EFL learners of this study did not support the natural order. Furthermore, comparison of findings to previous studies revealed disparities among the L1 Korean groups learning English indicating the need for investigation into methodology as well as other external determinants in addition to L1 transfer.
Daria Wotzka,Tomasz Lusa 대한기계학회 2015 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.29 No.8
The paper deals with multiphysical modeling of phenomena connected with micro-cracks present in pipelines for transmitting chemicalsubstances in temperature below minus 100°C. In the numerical model, the effect of the pressure and negative temperature of the gastransported in the pipe was taken into consideration. The simulation tests were carried out in the steady and unsteady state to determinethe impact of the crack geometrical factors, i.e. type, shape and orientation on the results obtained, with the model parameter values, suchas the temperature and pressure of the gas transported inside the pipe remained constant. Based on the achieved analyses results it wasstated that the values of all parameters considered depend on all regarded factors: the shape, orientation and location of the crack in thepipe structure.
Daria Erusalkina,Huaping Sun,Liang Li,Ellen Thio 한국APEC학회 2021 Journal of APEC Studies Vol.13 No.1
Education is the most crucial determinant of economic growth, and the link between education and economic growth has always been an important field of economics research. Technological innovation is the source of promoting economic growth and the key to transforming economic growth mode. The aim of the paper is to explore the effects of education expenditure and technology investment on economic growth. The article used annual time series data of four countries (China, Finland, Germany, and Russia) from the period 1996 - 2018 on government expenditure on education (% of GDP), GDP per capita annual growth (GDPPCAG), government expenditure on R&D (GERD), control carbon dioxide emissions (𝐶𝑂₂) and the whole data is sourced from WDI of the World Bank. The results found the contribution rate of science and technology expenditures to per capita GDP growth is very high and a stable and long-term relationship between expenditures of science and technology and per capita GDP growth, with significant positive effects among all countries employed. There is a long-term stable relationship between education expenditure and economic development, but education expenditure to economic growth is smaller than that of science and technology expenditure relatively.