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이주 전후 거주요구를 비교한 소규모 단지형 전원주택 계획 연구
전연희(Jeon, Yeon-Hee),고성룡(Koh, Seong-Lyong) 대한건축학회 2017 대한건축학회논문집 Vol.33 No.10
Rural housing had been built as a type of weekend villa before the 1980s, and had been planning for residential housing after 1990s. The development size of rural housing has enlarged from isolated rural housing to rural housing complex, and rural housing developers are varied from individual demander to construction companies of rural housing or a group of people who have the same interest. And with an rising of incomes, people want high residential quality. Accordingly, people prefer rural housing in the natural environment to the urban housing of an over-populated city, and want single-family housing more than collective housing. As a result, the rural residential housing emerges as a new residential alternative. This study conducted an in-site survey, a questionnaire survey and a qualitative survey in order to find the dwelling needs of the residents living in a small rural housing complex with less than 20 households. To generalize the study results as the principle for rural housing plan, it is necessary to survey more cases and to research the dwelling needs of the residents living in various-sized rural housing complexes.
서리태 에탄올 추출물의 항산화 활성 및 암세포 증식 억제 효과
전연희 ( Yeon Hee Jeon ),원지혜 ( Ji Hye Won ),권지은 ( Ji Eun Kwon ),김미라 ( Mee Ra Kim ) 한국식품조리과학회(구 한국조리과학회) 2011 한국식품조리과학회지 Vol.27 No.3
The antioxidant activity and cytotoxic effect of an ethanol extract from Seoritae were analyzed to develop new functional food materials. The antioxidant activity of Seoritae was determined by measuring electron donating ability with 1,1-diphenyl-2picrylhydrazyl (DPPH) and 2-2`-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) assays, as well as the ferric reducing antioxidant power (FRAP) assay. The cytotoxic effect of the Seoritae ethanol extract was measured with the 3-(4,5-dimethylthiazol-2-yl)-2,5-dipheltetrazolium (MTT) and sulforhodamine B (SRB) assays. As a result, the electron donating abilities of Seoritae against the DPPH and ABTS radicals were 63.75% and 87.68% at 500 μg/assay, respectively. The IC50 values of Seoritae in the DPPH and ABTS assays were 385.39 μg/assay (128.46 μg/mL) and 209.39 μg/assay (51.83 μg/mL). Additionally, the FRAP value of Seoritae was 0.84 FeSO4 eq. mM at 800 μg/assay. The total amounts of polyphenols and flavonoids, which indicate the antioxidant capability of Seoritae extract were 1.65 mg/g and 0.59 mg/g, respectively. Moreover, Seoritae extract showed a high cytotoxic effect of up to 81% against human cancer cells, particularly A-549 and HeLa cells. The growth inhibition rate of Seoritae extract against A-549 and HeLa cells was up to 76.48% and 75.67% in the MTT assay, and 78.98% and 80.54% in the SRB assay, respectively. The results of this study suggest that an ethanol extract of Seoritae is a potentially good natural antioxidant.
고지방식사로 유도된 신장 산화스트레스를 개선하는 가압볶음 무말랭이 열수추출물 효과
전연희(Yeonhui Jeon),김미정(Mijeong Kim),한성경(Seongkyung Han),송영복(Yeong-Bok Song),송영옥(Yeong Ok Song) 한국식품과학회 2017 한국식품과학회지 Vol.49 No.2
고지방식사를 섭취한 쥐의 신장에서 가압볶음 무말랭이 추출물의 산화방지, 항염증 효과를 확인하였다. 실험군은 chow diet와 증류수를 경구 투여하는 NOR group, 고지방식사와 증류수를 경구 투여하는 CON group, 고지방식사와 237 mg/kg bw/day농도의 DR과 RDR를 각각 경구 투여하는 DR group, RDR group으로 나누어 12주간 사육하였다. 신장의 산화스트레스 지표인 ROS, ONOO−, 그리고 지방질과산화물의 농도를 확인한 결과 CON group이 NOR group에 비해 유의적으로 증가하였다. 반면 DR group과 RDR group에서 유의적으로 감소하였다. 체내 산화방지 지표인 글루타싸이온의 농도와 산화방지단백질의 발현은 DR group과 RDR group 모두 CON group에 비해 증가하였다. NF-κB 발현은 CON group이 NOR group에 비해 증가하였으나 DR group과 RDR group은 모두 감소하였다. RDR group은 DR group에 비해 ONOO− 및 지방질과산화물 농도가 감소하였고 글루타싸이온 농도와 산화방지 관련 단백질 발현 중 Nrf2, HO-1, 카탈레이스, 그리고 GPx가 증가하였고 염증반응 전사인자인 NF-κB의 발현이 낮아졌다. RDR group의 산화스트레스 개선효과는 유의적으로 높은 것으로 확인되었다. 따라서 가압볶음무말랭이를 차로 제조하여 섭취할 때 고지방식사로 유도된 신장의 산화스트레스를 억제할 수 있을 것으로 사료되며, 그 효과는 무말랭이보다 높은 것으로 확인되었다. The antioxidant and anti-inflammatory effects of roasted dried radish (RDR) against renal oxidative stress were examined in high-fat diet (HFD)-fed mice. The HFD was prepared by adding lard to chow diet to provide 50% of the calories from fat. Hot water extracts of dried radish (DR) or RDR were administered orally to mice at 237 mg/kg bw/day, whereas distilled water was administered as a vehicle for 12 weeks. Compared to the control group, renal reactive oxygen species, peroxynitrite, and thiobarbituric acid reactive substance level in the DR or RDR group were significantly decreased, whereas the glutathione level was increased (p<0.05). Protein expressions of antioxidant factors such as nuclear factor erythroid 2-related factor-2, heme oxygenase-1, glutathione S-transferase, superoxide dismutase, catalase, and glutathione peroxidase were significantly increased in the DR and RDR groups; however, nuclear factor-kappa B expression was suppressed (p<0.05). These antioxidant and anti-inflammatory effects of RDR were found to be significantly greater than those of DR.
중학생들의 또래 괴롭힘 참여유형에 따른 도덕 판단의 차이: 결과의 수혜자와 상황의 책임소재를 바탕으로
전연희 ( Yeon Hee Jeon ),심은정 ( Eun Jung Shim ),이윤형 ( Yoon Hyoung Lee ) 한국청소년복지학회 2015 청소년복지연구 Vol.17 No.1
본 연구의 목적은 중학생을 대상으로 또래 괴롭힘 상황에서의 주변또래 참여유형에 따라 도덕적 딜레마 상황에서의 결정에 대한 판단이 차이가 있는지를 살펴보는 것이다. 이를 위하여 본 연구에서는 도덕적 딜레마 상황에서의 판단에 따른 결과의 수혜자(자신-타인)와 상황의 책임소재(있음-없음)에 근거한 도덕 판단이 주변또래 참여유형에 따라 차이가 나는지를 옳고 그름의 판단, 자신이나 타인이 그 상황에서 어떠한 행동을 취할 것인지 선택에 대한 판단, 비난 가능성에 대한 판단으로 구분하여 살펴보았다. 본 연구에서는 울산시에 소재한 중학교 학생 382명을 대상으로 또래 괴롭힘 참여유형 척도를 실시하였으며, 도덕적 딜레마 시나리오를 제시하고 그에 따라 도덕성, 자기행위, 타인행위 및 비난 가능성을 판단하도록 했다. 그 결과 도덕 판단 시 결정의 수혜자가 자신일 때, 피해자에게 책임이 있을 때 다수를 살리기 위해 한 명을 희생하는 결정이 도덕적 행위를 어긴 정도가 덜 하다고 판단하였다. 또한 도덕적 딜레마 상황에서의 결정에 대한 판단은 주변또래 참여유형에 따라 다르게 나타났는데 자기행위 판단과 타인행위 판단의 경우에 방관자 집단이 방어자집단에 비해 딜레마 상황에서 한 명을 희생하는 결정이 도덕적 행위를 어긴 정도가 덜 하다고 판단하였다. 특히 방관자의 경우에는 자기행위 판단에서 희생자에게 책임이 있는 경우에 도덕적으로 괜찮다고 판단하였다. 본 연구의 결과는 피해자의 책임에 대한 방관자의 인식 변화가 또래 괴롭힘 상황에서의 방관자의 역할 행동변화의 중요한 요인일 수 있음을 보여주었으며 또래 괴롭힘의 예방을 위해서는 피해자들의 책임여부에 관계없이 또래 괴롭힘은 옳지 못하며 또래 괴롭힘이 결국은 자신의 문제라는 것을 인식시킬 필요성이 있다는 것을 시사한다. The purpose of this study was to examine whether moral judgments in moral dilemmas differs according to participant roles in bullying situation(i.e., bully-followers, bystanders, defenders). Specifically, the study explored differences in moral judgment based on the beneficiary of the choice(self vs others) and the attribution of the responsibility. 382 middle school students in Ulsan city completed the Participant Role Questionnaire and the scale of moral judgment in moral dilemmas. The major findings were the following; First, the moral judgment in moral dilemmas differed according to the beneficiary of the choice and the attribution of the responsibility. In overall moral judgment, participants evaluated morally more acceptable in case that the beneficiary of choice was oneself and responsibility can be attributed to victims. Moreover, the moral judgments were partly differed according to participant role in bullying and in the types of judgments. While the judgement of morality and the possibility of the blame did not differ based on the participants’ roles, bystanders deemed that the degree of violation was lower compared to defenders in the case of the judgment of one’s act,. Also, in the judgment of one’s act, bystanders evaluated that it is morally tolerable in case that victims are responsible in that situation. Such results suggested that the change of bystanders’ perception regarding the responsibility of victims might be an important factor in the change of their role in bullying situation. Current findings indicate that moral judgments in their moral dilemmas vary depending on the participant role, the beneficiary of choice and the attribution of responsibility. The current study also suggested that efforts of effective prevention and intervention strategies targeted at bullying need to consider adolescents’ moral judgment tendency.
연구논문 : 복분자 에탄올 추출물의 식중독 관련 위해 세균에 대한 항균활성 분석
전연희 ( Yeon Hee Jeon ),순샤오칭 ( Xiao Qing Sun ),김미라 ( Mee Ra Kim ) 한국식품조리과학회(구.한국조리과학회) 2012 한국식품조리과학회지 Vol.28 No.1
This study analyzed the antibacterial activity of a Rubus coreanum (Bokbunja) ethanol extract. The antimicrobial activity was determined by disc diffusion, minimum inhibitory concentration (MIC), and growth inhibition methods with seven kinds of bacteria related to foodborne illness (Bacillus cereus, Escherichia coli, Escherichia coli O157:H7, Listeria monocytogenes, Pseudomonas aeruginosa, Staphylococcus aureus, and Salmonella typhimurium). In the results, disc diffusions of the ethanol extract from R. coreanum (9.8-17.5 mm at 4,000 μg/disc) clearly showed the antimicrobial activity of the extract against all tested microorganisms. Rubus coreanum promoted an inhibitory effect as follows: E. coli O157:H7 > P. aeruginosa > L. monocytogenes > E. coli > S. aureus > B. cereus ≥ S. typhimurium. In the MIC test, R. coreanum showed high antimicrobial effect against L. monocytogenes at 500 ppm. Moreover, the R. coreanum ethanol extract showed strong growth inhibition against microorganisms, similar to the MIC results. These results show that a R. coreanum ethanol extract has powerful antimicrobial activity against all tested microorganisms, suggesting that R. coreanum will be useful as a potential natural preservative.