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저소득층 청소년의 인지 및 메타인지 전략이 학업 성취에 미치는 영향 : 비저소득층 청소년과의 비교를 중심으로
박해빈(Park Haebin),신태섭(Shin Taeseob) 한국열린교육학회 2016 열린교육연구 Vol.24 No.2
본 연구에서는 저소득층 청소년과 비저소득층 청소년 간 인지 및 메타인지 전략과 학업 성취에서 유의 한 차이가 있는지를 확인하였다. 또한 인지 및 메타인지 전략이 학업 성취에 미치는 영향이 저소득층 여부에 따라 차이가 나타나는지를 국어, 영어, 수학 교과를 중심으로 살펴보았다. 연구 결과, 저소득층 청소년이 비저소득층 청소년에 비해 국어, 영어, 수학 교과의 학업 성취 수준이 낮고, 정교화 전략과 메타인지 전략을 잘 사용하지 못하며, 낮은 자기효능감을 보이는 것으로 나타났다. 과목별 차이를 확인한 결과, 국어 교과에는 메타인지 전략이, 수학 교과에는 시연, 정교화 및 메타인지 전략이 학업 성취에 유의한 영향을 미치지만 저소득층 여부와 인지 및 메타인지 전략의 조절효과는 나타나지 않았다. 한편, 영어 교과에는 시연, 정교화 및 메타인지 전략이 학업 성취에 유의한 영향을 미쳤다. 특히 영어 교과에서는 저소득층 여 부와 정교화 전략 간 조절효과가 나타났다. 즉, 저소득층 청소년은 비저소득층 청소년과 같은 정교화 전략을 사용하더라도 영어 학업 성취에 미치는 효과가 더 낮은 것으로 나타났다. 이러한 연구결과는 저소득층 청소년의 저성취 문제 해결을 위한 인지 및 메타인지 전략 훈련 프로그램 개발의 필요성을 시사한다. This study examined the effects of cognitive and meta-cognitive strategies on the academic achievement of middle school students in low-income families. Analyses were conducted with the Year 2 data from the Gyeonggi Education Panel Study 2012 (GEPS 2012). Results show that academic achievements of the adolescents in low-income families were significantly different from the adolescents in families without financial difficulties. In addition, the usage of elaboration, meta-cognitive strategies, and self-efficacy of the adolescents in low-income families were significantly different from the adolescents in families without financial difficulties. The adolescents in low-income families did not use elaboration and meta-cognitive strategy properly and their self-efficacy was lower. Finally, the result of hierarchical multiple regression analyses shows that there is a moderation effect between SES status and the use of elaboration strategy on academic achievement in English. In other words, elaboration strategy of adolescents in low-income families had weaker impacts on their English compared to adolescents in families without financial difficulties. No moderation effects were found in Korean Language and Mathematics. This study has an important implication as it examined the effects of cognitive and meta-cognitive strategies on academic achievement of adolescents in low-income families after controlling for self-efficacy.
Jeong, Hyeon Jin,Yoo, Ran Ji,Kim, Jin Kwan,Kim, Min Hwan,Park, Su Hong,Kim, Haebin,Lim, Jae Wook,Do, Sun Hee,Lee, Kyo Chul,Lee, Yong Jin,Kim, Dong Wook Elsevier 2019 Biomaterials Vol.199 No.-
<P><B>Abstract</B></P> <P>We introduce an efficient cell tracking imaging protocol using positron emission tomography (PET). Since macrophages are known to home and accumulate in tumor tissues and atherosclerotic plaque, we design a PET imaging protocol for macrophage cell tracking using aza-dibenzocyclooctyne-tethered PEGylated mesoporous silica nanoparticles (DBCO-MSNs) with the short half-life F-18-labeled azide-radiotracer via an in vivo strain-promoted alkyne azide cycloaddition (SPAAC) covalent labeling reaction inside macrophage cells in vivo. This PET imaging protocol for in vivo cell tracking successfully visualizes the migration of macrophage cells into the tumor site by the bioorthogonal SPAAC reaction of DBCO-MSNs with [<SUP>18</SUP>F]fluoropentaethylene glycolic azide ([<SUP>18</SUP>F]<B>2</B>) to form <SUP>18</SUP>F-labeled aza-dibenzocycloocta-triazolic MSNs (<SUP>18</SUP>F-DBCOT-MSNs) inside RAW 264.7 cells. The tissue radioactivity distribution results were consistent with PET imaging findings. In addition, PET images of atherosclerosis in ApoE<SUP>−/-</SUP> mice fed a western diet for 30 weeks were obtained using the devised macrophage cell-tracking protocol.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Sung Joon Cho,Jungmee Kim,Yeon Ju Kang,Seung Yeon Lee,Hwo Yeon Seo,Jee Eun Park,Haebin Kim,Kyoung-Nam Kim,Jin Yong Lee,Jee Hoon Sohn 대한신경정신의학회 2020 PSYCHIATRY INVESTIGATION Vol.17 No.1
Objective: We conducted this study to address the incidence and prevalence of schizophrenia and similar psychosis in South Korea with Health Insurance Review and Assessment (HIRA) database. Methods: We used HIRA database, which includes diagnostic information of nearly all Korean nationals to collect number of cases with diagnosis of schizophrenia and schizophrenia-similar disorders (SSP), including schizophreniform, acute/transient psychotic disorders, schizoaffective disorders, and other/unspecific nonorganic psychosis (ICD-10 codes F20/23/25/28/29) between 2010 and 2015. The annual prevalence and incidence were calculated using the population data from the Korean Statistical Office. Results: The 12-month prevalence of SSP of Korea between 2010 and 2015 were 0.48-0.66%. The 12-month prevalence of schizophrenia were 0.40-0.52%; The annual incidence rates (IR) of SSP between 2010 and 2015 were 118.8-148.7 per 100,000 person-year (PY). For schizophrenia, IR per 100,000 PY were 77.6-88.5 between 2010 and 2015. Conclusion: The 12-month prevalence found in the present study was higher than that reported in community-based epidemiologic studies in South Korea but similar to those from other countries. The annual incidence of SSP and schizophrenia was found to steadily increase and was higher than that of other countries. The high incidence rate observed in the current study needs to be studied further.