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임다은 ( Da-eun Im ),김건 ( Gun Kim ),이주석 ( Ju Seok Lee ) 한국환경농학회 2019 한국환경농학회 학술대회집 Vol.2019 No.-
Airborne particulate matter (PM) become a serious threat to climate, environment, and public health. To reduce PM concentration in the air, phytoremediation could be alternative and cost-efficient strategy. PM could absorbed into plants through foliar organ by 4 steps, absorption to leaf surface, translocation into leaf cell, dispersion into entire plant, and accumulation into specific plant organs. Thus, the phytoremediation by plant could be achieved through the first step, absorption to leaf surface, and this could be mediated by various factors, such as leaf surface characteristic, relative humidity, PM concentration in the air, etc. Soybean [Glycine max (L.) Merr] serve as one of the most valuable crop in the word and grow in around 127 million hectares worldwide. When typical varieties, which absorb PM more efficiently, are grown, phytoremediation could be achieved by the crop plant and contribute to reduce PM concentration in the air. In this study, temporal change of PM concentration by various soybean varieties in glass test chamber to investigate the PM absorption efficiency differences. Total 10 soybean varieties were test and their absorption rate. There are slight differences among soybean varieties, and this could be caused by the difference of leaf surface morphology. This result could provide the fundamental information for future soybean breeding program for phytoremediation as well as other crop plants.
초등학생의 상호활성화와 긍정적 정서를 위한 원예교육 프로그램의 개발과 적용
홍다은(Da-Eun Hong),곽혜란(Hye-Ran Kwack),임은애(Eun-Ae Im) 한국실과교육학회 2023 한국실과교육학회지 Vol.36 No.2
본 연구는 긍정심리학에 기초하여 학교에서 실행 가능하도록 고안한 원예교육 프로그램이 긍정심리학의 통합적 변인인 상호활성화(Covitality)와 삶에 호의적으로 반응하는 긍정적 정서에 미치는 효과를 검증하였다. 이를 위하여 서울시 소재의 H 초등학교 6학년 52명을 대상으로 실험집단 26명, 통제집단 26명으로 두집단 사전-사후측정 유사실험설계(Two group pretest-posttest measurement quasi-experimental design)로 총 13회기 긍정심리 원예교육프로그램을 실시하였다. 연구의 결과, 개발된 긍정심리학 기반 원예교육 프로그램은 초등학생의 상호활성화를 증진시키는 데 유의미한 효과가 있었다. 하위영역인 자신에 대한 믿음, 타인에 대한 믿음, 감정적 능력, 삶의 참여에 향상을 가져왔다. 또한 초등학생의 스트레스를 줄이고 긍정적 정서를 증진시키는데도 유의미한 효과가 있었다. 본 연구는 단일 개념을 벗어나 다양한 정보를 포함하는 통합적 개념을 나타내는 도구를 사용함으로써 긍정심리학 기반 원예교육 프로그램이 초등학생의 상호활성화 및 긍정적 정서 향상에 영향을 미친다는 것을 확인하였다. 이를 바탕으로 사회·정서적 역량을 높여 초등학생 스스로 행복감을 조성할 수 있도록 돕는 긍정심리학에 기초한 원예교육의 필요성을 알리고, 초등학교 현장에 보다 효과적이고 다양한 긍정심리학 기반 원예교육 프로그램을 제공하고자 하였다. This study examined the effects on covitality, an integrative variable of positive psychology and positive emotions that respond favorably to life, of a horticulture education program designed to be implemented in schools based on positive psychology. For this purpose, the analysis included a total of 52 6th graders at H Elementary School in Seoul, Korea, with 26 participants in the experimental group and 26 participants in the control group. A total of 13 sessions of the positive psychology horticulture education program were conducted using a two-group pretest-posttest measurement quasi-experimental design. The results of the study showed that the developed positive psychology-based horticulture education program was significantly effective in promoting covitality in the case of elementary school students. It improved the sub-domains of belief in self, belief in others, emotional competence, and engaged living. It also had a significant effect on reducing stress and promoting positive emotions of elementary school students. This study confirmed that positive psychology-based horticulture education programs affect elementary school students' covitality and positive emotions by using a tool that represents an integrated concept including various information beyond a single concept. This study aimed to inform the need for positive psychology-based horticulture education to help elementary school students in the creation of a sense of well-being by increasing their social and emotional competence, and to provide more effective and diverse positive psychology-based horticulture education programs for elementary schools.
Maternal risk factors for recurrent small-for-gestational age at term neonates in South Korea
( Eun Hye Cho ),( Young Nam Kim ),( Dae Hoo Jeong ),( Kyung Bok Lee ),( Moon Su Sung ),( Da Hyun Kim ),( Do Hwa Im ),( Geum Joon Cho ) 대한산부인과학회 2022 대한산부인과학회 학술대회 Vol.108 No.-
Objective: The objective of this study is to analyze the associated maternal pre-pregnancy and pregnancy factors that affect SGA at term neonates in South Korea. Methods: This study enrolled pregnant women who had two full-term singleton deliveries from 2006 to 2016, and who had undergone a national health screening examination through the National Health Insurance during the 1 year before their delivery. We compared the pregnancy and pre-pregnancy characteristics between the SGA group and non-SGA group, and between the recurrent SGA group (second SGA delivery) and non-recurrent SGA group (second non-SGA delivery) among the women who delivered their first SGA neonate. Results: We enrolled 887,902 term singleton deliveries during the study periods. SGA neonates were delivered in 2.84% of term singleton pregnancies. Mean birth weight were 2.18 ± 0.64 kg in the SGA group and 3.28 ± 0.38 kg in the non-SGA group (p<0.001). The prevalence of pre-gestational hypertension and gestational hypertension were higher in SGA group than non-SGA group (3.99% vs. 2.85%; <0.001, and 5.88% vs. 1.22%; p<0.001, respectively). Maternal pre-gestational mean BMI and fasting glucose were lower in SGA group than non-SGA group (20.46 ± 2.58 vs. 21.08 ± 2.74, p<0.001, and 86.62 ± 10.52 mg/dl vs. 87.33 ± 11.23 mg/dl; <0.001, respectively) For the women who recurrently delivered SGA neonates, the prevalence of gestational hypertension during the second pregnancy were higher than non-recurrent SGA group (5.88% vs. 1.65%; p<0.0001), and pre-gestational fasting glucose were lower (86.31 ± 10.29 mg/dl vs. 87.76 ±11.36 mg/dl; p=.0388) than non-recurrent group. Conclusion: Pregnant women who delivered SGA neonates had more gestational and pre-gestational hypertension and lower pre-gestational BMI and fasting glucose level. Moreover, women who recurrently delivered SGA neonates had more gestational hypertension during second pregnancy. Based on this results, the management and counseling for pregnant women is necessary to prevent SGA neonates.
Im, Chang-Nim,Kim, Byeong Mo,Moon, Eun-Yi,Hong, Da-Won,Park, Joung Whan,Hong, Sung Hee Korea Genome Organization 2013 Genomics & informatics Vol.11 No.4
A radioresistant cell line was established by fractionated ionizing radiation (IR) and assessed by a clonogenic assay, flow cytometry, and Western blot analysis, as well as zymography and a wound healing assay. Microarray was performed to profile global expression and to search for differentially expressed genes (DEGs) in response to IR. H460R cells demonstrated increased cell scattering and acidic vesicular organelles compared with parental cells. Concomitantly, H460R cells showed characteristics of increased migration and matrix metalloproteinase activity. In addition, H460R cells were resistant to IR, exhibiting reduced expression levels of ionizing responsive proteins (p-p53 and ${\gamma}$-H2AX); apoptosis-related molecules, such as cleaved poly(ADP ribose) polymerase; and endoplasmic reticulum stress-related molecules, such as glucose-regulated protein (GRP78) and C/EBP-homologous protein compared with parental cells, whereas the expression of anti-apoptotic X-linked inhibitor of apoptosis protein was increased. Among DEGs, syntrophin beta 2 (SNTB2) significantly increased in H460R cells in response to IR. Knockdown of SNTB2 by siRNA was more sensitive than the control after IR exposure in H460, H460R, and H1299 cells. Our study suggests that H460R cells have differential properties, including cell morphology, potential for metastasis, and resistance to IR, compared with parental cells. In addition, SNTB2 may play an important role in radioresistance. H460R cells could be helpful in in vitro systems for elucidating the molecular mechanisms of and discovering drugs to overcome radioresistance in lung cancer therapy.