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      • KCI등재

        한약재 주정 추출물이 종자발아와 유묘생장에 미치는 영향

        김진효 ( Jin Hyo Kim ),김준영 ( Jun Young Kim ),류성지 ( Sung Ji Ryu ),최근형 ( Geun Hyoung Choi ),김원일 ( Won Il Kim ),김세리 ( Se Ri Kim ),박병준 ( Byung Jun Park ),조남준 ( Nam Jun Cho ) 한국환경농학회 2014 한국환경농학회지 Vol.33 No.3

        BACKGROUND: Herbal extracts have been screened fortheir inhibitory effect of seed germination and rootdevelopment on weeds, but there is a scarcity of reports forcrop growth regulation. The objective of this research wasto develop a growth inhibitor on Brassica campestris, andits effective extraction method from herbal medicineextract. METHODS AND RESULTS: Eighty four herbal medicineextracts were tested for their plant growth inhibitionactivity on B. campestris. The alcohol extracts of Artemisiaannua, Cinnamomum cassia, and Mentha arvensisinhibited over 30% of germination and the extract of A. annua, and C. cassia inhibited over 70% of radicle growthat 0.1 % w/w treatment. The partially purified extracts of A. annua, and C. cassia with dichloromethane and hexaneshowed stronger radicle growth inhibition than the crudeextracts on B. campestris. The diethyl ether extract of A. annua showed a similar 50% radicle growth inhibition (RI50= 45 mg/L) to its partially purified extract withdichloromethane or hexane, but the diethyl ether extract ofC. cassia showed a worse RI50 than the purified extract. CONCLUSION: The alcohol extracts of A. annua, and C. cassia showed potent radicle growth inhibition propertieson B. campestris. Diethyl ether proved to be a good solventfor simple extraction from A. annua.

      • SCOPUSKCI등재
      • KCI등재

        MTA와 4-META/MMA & TBB레진 혼합 재료의 치근단 미세누출에 관한 연구

        김진철,김미리,고현정,양원경 大韓齒科保存學會 2009 Restorative Dentistry & Endodontics Vol.34 No.4

        이 연구에서는 Mineral Trioxide Aggregate (MTA)와 4-methacryloxyethyl trimellitate anhydride (4-META)/methyl methacrylate (MMA) & tri-n-butylborane (TBB) 레진을 혼합하여 치근단 역충전 재료로 사용하였을 때의 미세누출을 MTA, 포틀랜드 시멘트와 비교하였다. 발치된 사람 치아의 근관형성 및 충전 후 치근단 절제와 역충전 와동을 형성하였다. MTA, Portland cement, MTA와 4-META/MMA & TBB레진을 혼합한 각각의 재료로 치근단을 역충전한 후 methylene blue dye에 72시간 동안 침적하여 염료가 침투한 길이를 10배 현미경 하에서 측정하였다. MTA와 4-META/MMA & TBB 레진 혼합 충전 군에서는 포틀랜드 시멘트나 MTA 충전군보다 통계적으로 유의하게 적은 미세 누출을 보였으며 , 포틀랜드 시멘트와 MTA 충전군의 미세 누출 정도는 통계적으로 차이가 없었다. 이 실험의 결과로 보아 MTA와 4-META/MMA & TBB레진 혼합 재료는 치근단 역충전시 포틀랜드 시멘트나 MTA에 비해 낮은 초기 미세누출을 보여, 치근단 봉쇄 효과가 우수한 것으로 사료된다. We evaluated in vitro microleakage of Mineral Trioxide Aggregate (MTA) powder with 4-methacry-loxyethyl trimellitate anhydride (4-META) / methyl methacrylate (MMA) & tri-n-butylborane (TBB) resin as a retrograde filling material by using methylene blue dye method. Fifty-two single rooted, extracted teeth were instrumented and obturated with gutta percha and AH plus sealer. The apical 3mm of each root was resected and 3mm deep ultrasonic root end preparation was done. External surface of roots was coated with nail varnish. Prepared teeth were randomly divided into five groups: Negative control: completely covered with nail varnish; Positive control: coated with nail varnish except for apical foramen; Group 1 (retrofilled with Portland cement); Group 2 (retrofilled with MTA) ; Group 3 (retrofilled with MTA powder mixed with 4-META/MMA & TBB resin). Immediately after completion of root-end filling, all specimens were submerged in methylene blue dye for 72 hours in 37℃ incubator. The roots were longitudinally sectioned and measured for extent of dye penetration by three different examiners under microscope (×10). The results were statistically analyzed using one way ANOVA and Turkey's HSD test. No leakage was evident in negative control and complete leakage in positive control group. Group 3 showed significantly less leakage than group 1 and 2 (p < 0.01). There was no significant difference between group 1 and 2 (p > 0.01). It was concluded that MTA powder with 4-META/MMA & TBB resin was excellent in reducing initial apical microleakage. 〔J Kor Acad Cons Dent 34(4):371-376, 2009〕

      • 귀하식물, 가시상추(Lactuca serriola)의 서식환경

        배진화,이종운 嶺南大學校 基礎科學硏究所 1996 基礎科學硏究 Vol.16 No.-

        귀하식물, 가시상추가 형성하는 군락구조와 무기환경요인을 연구하였다. 가시상추의 군락은 Kummerovia stipulacea, Setaria viridis, Ambrosia artemisiifolia, Youngia sonchifolia, Cephalonoplos segetum, Lactuca indica, Ixeris chinensis, Cosmos bipinnatus등이 우점하고 있었다. 서식지의 토양환경은 pH 7.8의 약알칼리였으며 높은 유기물 함량과 낮은 중금속 함량을 보였다. 따라서 전령적인 황지식물의 특성을 보였다. 종자의 발아조건은 pH 2.6 이상이었고, 생장조절상에서 확인한 유묘의 제한요인에 의한 피해는 광도 500 Lux, pH 6, 일시위조점 pF 2.0, 영구위조점은 pF 2.5이었다. Biotic community structures and abiotic environmental factors of a neophyte, prickly lettuce, were studied. The community was composed of dominant species of Kummerovia stipulacea, Setaria viridis, Ambrosia artemisiifolia, Youngia sonchifolia, Cephalonoplos segetum, Lactuca indica, Ixeris chinensis and Cosmos bipinnatus. The habitat soil was slightly alkaline with pH 7.8, high organic matter contents, and low in heavy metal contents. Therefore, it showed typical characteristics of the ruderal environment. The seeds were germinated in the condition of above pH 2.6 and injuries of the seedling by the limiting factors in the controlled environment chamber occurred at 500 Lux of light intensity, pH 6.0, tempory wilting point of pF 2.0 and permanent wilting point of pF 2.5.

      • KCI등재

        학령전기 아동의 글씨 쓰기에 영향을 미치는 요인에 관한 연구

        김원진,왕군철,김두리,최인영,허진아,최유정,장문영 대한감각통합치료학회 2011 대한감각통합치료학회지 Vol.9 No.1

        목적 : 학령전기 아동의 글씨 쓰기 명료도 및 속도와 지각-운동 기술의 상관관계를 확인하고, 글씨 쓰기에 가장 영 향을 주는 요인을 알아보고자 하였다. 연구방법 : 덴버 발달 선별 검사를 통하여 정상 발달로 선별된 23명의 학령 전기 아동(평균 연령=68.61개월, SD=2.04)을 대상으로 글씨 쓰기 명료도 및 속도 측정을 위하여 한글 자모 쓰기 검사지를 사용하여 자음과 모음을 쓰도록 하였다. 시지각과 시각-운동 통합 수행 능력 측정을 위하여 시지각 발달 검사를 사용하였고, 소운동 협응 수행 능력 측정을 위하여 Grooved pegboard test를 사용하였다. 결과 : 글씨 쓰기 명료도와 전반적인 시지각, 비운동성 시지각, 시각-운동 통합, 우세손 소동작 협응의 상관관계는 없었으며, 글씨 쓰기의 속도는 전반적 시지각과 우세손 소동작 협응 항목에서 유의한 상관관계를 보였다. 회귀 분 석 결과 글씨 쓰기 속도에 가장 큰 영향을 주는 요인은 전반적 시지각 항목이었다. 결론 : 만 5~6세 학령 전기 아동의 전반적 시지각 능력의 발달을 향상시키기 위한 중재를 제공하는 것이 글씨 쓰기 의 속도 능력을 향상 시킬 수 있다는 것을 알 수 있다. Objective : This study investigated the relationships of handwriting legibility and perceptual-motor skills, and handwriting speed and perceptual-motor skills. And identified the predictors that most affect the handwriting of preschool children. Methods : Twenty-three typically developing preschool aged children (mean age: 68.61 months, SD=2.04) were selected through the Korean-Denver Developmental Screening Test-2(K-DDST-2). The children were tested with regard to handwriting legibility, visual perception, visual-motor integration and fine-motor coordination. Results : First, a significant relationship was not found among handwriting legibility, visual perception, visualmotor integration and fine-motor coordination. Second, a significant relationship was found among handwriting speed, visual perception and fine-motor coordination. Third, stepwise multiple regression analyses showed that general visual perception were significant predictors for handwriting speed. Conclusion : Occupational therapists should evaluate children's visual perception levels utilizing a standardized test, and focus on general visual perception in order to improve handwriting skill(speed). Also, occupational therapists are expected to play an important role in the management and treatment of children's handwriting skills.

      • KCI등재후보
      • KCI등재

        인천광역시 지역아동센터 교사의 구강보건교육 요구도 조사

        김진희 ( Jin Hee Kim ),김현진 ( Hyun Jin Kim ),김혜진 ( Hye Jin Kim ),박지혜 ( Ji Hye Park ),방우리 ( Woo Ri Bang ),신혜주 ( Hye Ju Shin ),한수진 ( Su Jin Han ) 한국치위생과학회 2011 치위생과학회지 Vol.11 No.6

        The purpose of this study was to examine the oral health behavior and awareness of teachers in community children`s centers, the state of oral health care among children in the centers and the opinions of the teachers on child oral health education in a bid to gather information required for the development of oral health education programs geared toward community children`s center teachers. The subjects in this study were 178 teachers who worked in 98 community children`s centers in the city of Incheon. After a survey was conducted from April 28 to June 4, 2010, the collected data were analyzed. The findings of the study were as follows: The 57.3% of the teachers investigated provided toothbrushing guidance from time to time or couldn`t do it at all. As for the reason why toothbrushing guidance was scarcely conducted, the largest group cited shortage of sinks(27.5%) as the reason, and the second biggest group replied they couldn`t afford to pay attention to that due to heavy workload(20.6%). The third greatest group was pressed for time(16.7%). The teachers got a mean of 3.27 in oral health behavior, and 87.7% were concerned about children`s oral health. The group of teachers who ever received oral health education was significantly better at oral health behavior and showed significant more interest in oral health(p<0.01). The 97.2% of the respondents considered oral health important. Concerning the reason, they replied it was crucial for systemic health (74.2%). The 89.4% of the teachers viewed child oral health education as necessary, and 86.5% had an intention to provide oral health education for children. They hoped to receive education on the oral health control act(4.52) and the prevention of dental caries(4.40). The above-mentioned findings confirmed that in order to step up the oral health promotion of child users of local children`s centers, it`s necessary to provide secondhand education for them through their teachers who have a great impact on them. Therefore the development of oral health education programs that cater to local children`s center teachers is required.

      • KCI등재

        고층건물 풍상면과 풍하면의 기온차

        김일 ( Ri Jin ),최화 ( Hua Cui ),어금항 ( Jin Hang Yu ),구희영 ( Hee Yeong Ku ),정해연 ( Hai Yan Zheng ),김문성 ( Wen Cheng Jin ),이규석 ( Kyoo Seock Lee ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2012 한국환경복원기술학회지 Vol.15 No.1

        To investigate the air temperature difference between windward and leeward side at high-rise building area, the air temperature and relative humidity data were observed for 10 minute interval from July 9, 2011 to November 30, 2011. The observed data were compared, analyzed and examined to illustrate air temperature between windward side (H Apartment) and Leeward side (W Apartment). The diurnal and seasonal variation of air temperature difference between windward and leeward site were also investigated. After the analysis, the overheat of windward side by 0.4℃ irrespective short distance of two observation positions. It was also lower than those of surrounding air temperature observing stations. It is mainly due to the air temperature decreasing effects of leeward side of high rise buildings.

      • KCI등재

        Serum visfatin levels in non-obese women with polycystic ovary syndrome and matched controls

        ( Jin Ju Kim ),( Young Min Choi ),( Min A Hong ),( Min Jeong Kim ),( Soo Jin Chae ),( Sun Mie Kim ),( Kyu Ri Hwang ),( Sang Ho Yoon ),( Seung Yup Ku ),( Chang Suk Suh ),( Seok Hyun Kim ) 대한산부인과학회 2018 Obstetrics & Gynecology Science Vol.61 No.2

        Objective The purpose of the current study was to compare the circulating levels of visfatin between women with polycystic ovary syndrome (PCOS) and those without PCOS and to assess the correlations between visfatin levels and various parameters. Methods This case-control study recruited 74 PCOS patients and 74 age- and body mass index (BMI)-matched controls. Serum visfatin levels were evaluated using the enzyme-linked immunosorbent assay. Women with PCOS were divided into 2 subgroups based on the presence of clinical or biochemical hyperandrogenism. The possible differences in serum visfatin levels between the hyperandrogenic and non-hyperandrogenic groups were also assessed. Results Visfatin levels in PCOS patients were similar to those in the controls. However, hyperandrogenic patients had significantly higher mean serum visfatin levels than those in non-hyperandrogenic patients (3.87 ng/mL; 95% confidence intervals [CIs], 3.09-4.85 in hyperandrogenic group vs. 2.69 ng/mL; 95% CIs, 2.06-3.52 in non-hyperandrogenic group; P=0.038). In women with PCOS, visfatin levels positively correlated with BMI (r=0.23; P=0.047) and the log free androgen index (FAI) (r=0.27; P=0.021) and negatively correlated with high-density lipoprotein (HDL) cholesterol levels (r=-0.37; P=0.025). Except for HDL cholesterol levels, these correlations were also observed in controls. Conclusion Visfatin levels in PCOS patients were similar to those in the controls. However, hyperandrogenic patients showed significantly higher serum visfatin levels than those of non-hyperandrogenic patients, and visfatin had a positive linear correlation with FAI in both PCOS patients and controls.

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