반복적인 급성 신부전을 유발한 호산구성 장염 1 예

정혜진;김현태;김유선;정현걸;강윤경;문정섭 인제대학교 2011 仁濟醫學 Vol.32 No.-

Eosinophilic gastroenteritis is a rare disorder of unknown etiology characterized by presence of gastrointestinal symptoms, eosinophilic infiltratio n of one or more parts of gastrointestinal tract without involvement of other organs and absence of parasitic infestation. The clinical presentation depends on the extents and depths of eosinophilic infiltration. Mucosal involvement may result in abdominal pain, nausea, vomiting, diarrhea and weight loss. We report a case of eosinophilic enterocolitis in a 55-year-old female presented with abdominal pain and watery diarrhea resulting in recurrent acute renal failure.

응집제 Ceramic-Zeolite type과 황토를 이용한 Microcystis aeruginosa 제거에 관한 연구

박홍기,정은영,이유정,정종문,최식영,홍용기 한국환경과학회 2002 한국환경과학회지 Vol.11 No.4

For the proposal of Microcystis aeruginosa control technique by coagulants, removal effects of coagulants were carried out using isolated strain and collected water bloom of M. aeruginosa on Downstream of the Nakdong River. Both of purified and field-collected M. aeruginosa were entirely sedimented by the addition of the coagulant Ceramic-Zeolite type Co 100 (1.5 mg/l) within 24 hr, but Yellow loess (10 mg/l) was less effective for the removal of M. aeruginosa within 24hr. Thus it was concluded that Ceramic-Zeolite type Co 100 was the most effective coagulant.

유용성 도료와 수용성 도료의 유해성 비교에 관한 연구 : 자동차 보수용 도료를 중심으로

권은혜,김광식,오정룡,최정근,정윤석,이유진,김은아,송세욱,정호근 한국산업위생학회 2001 한국산업보건학회지 Vol.11 No.1

The purpose of this study is to substitute water-based painting materials for the current solvent-based ones used in motor-repairing process to minimize the exposure of organic solvents to the painters. This study assessed the exposure of organic solvents to the painters using water-based and solvent-based painting materials and compared compositions, painting processes and the health hazards of the application of these alternative painting materials. The results of this study are as follows. 1. solvent-based painting materials used in motor-repairing process consist of various organic solvents, which consist primarily of toluene, xylene, ethyl benzene, ethyl methyl bezene, trimethyl bezene, ethyl acetate, butyl acetate, methyl isobutyl ketone, 2-ethoxy ethanol, 2-ethoxy ethyl acetate and toluene-2.4-diisocianate and the others. These organic solvents are know as health-hazardous substances. But water-based painting materials are high-solid, low-solvent ones and consist of such two organic solvents as 2-butoxy ethanol and 2-heptanone and the others. 2. The painters using solvent-based painting materials in motor-repairing process are exposed to various organic acetate, methyl isobutyl ketone, trimethyl benzene, 2-ethoxy ethanol, and 2-ethoxy ethyl acetate. But the painters using solvent-based ones are only exposed to 2-butoxy ethanol and 2-heptanone. 3. By using water-based painting materials in stead of solvent-based painting materials containing health-hazardous organic solvents, the exposure of such organic solvents in the painter's breathing zone can be largely prevented. 4. This study recommends water-based painting materials as substitutes for the current solvent-based ones used in motor-repairing process to minimize the exposure of organic solvents to the painters.

자폐스펙트럼 장애아동의 의사소통 기술 향상에 관한 단일대상연구의 문헌 분석

정유진,윤현숙 이화여자대학교 특수교육연구소 2014 특수교육 Vol.13 No.1

이 연구는 2007년부터 2013년까지 이루어진 자폐스펙트럼 장애아동의 의사소통 기술 향상을 위한 연구들을 조사하여, 일반적인 특징과 동향을 알아보고, 단일대상연구 증거기반 실제(evidence-based practices: EBP)의 기준이 되는 Horner 등(2005)이 제안한 질적 지표를 기초로 중재방법에 대한 문헌 분석을 실시하였다. 연구 결과, 첫째, 자폐스펙트럼 장애아동의 의사소통 기술 향상을 위한 단일대상연구들의 일반적인 특징을 분석한 결과, 연구대상 측면에서는 3명 이상으로 실시된 연구들이 절반 이상이었고, 연령은 주로 초등연령에서 이루어져 왔으며, 장애정도는 경증-중간 자폐에서부터 중도 자폐에 이르기까지 고르게 이루어져 왔다. 연구환경은 여러 기타 외부 환경에서 이루어진 연구들이 절반을 차지하였고, 실험설계는 주로 중다 기초선 설계와 중다 간헐 기초선 설계를 많이 사용했다. 독립변인으로는 다양한 중재방법들이 사용되었으며, 이 중 4편 이상의 논문에서 실시된 중재로는 상황이야기 중재, 보완대체 의사소통 중재가 있었다. 다음으로 종속변인으로는 의사소통 기능 증진의 효과를 본 연구들이 절반 이상을 차지하였다. 둘째, 자폐스펙트럼 장애아동의 의사소통 기술 향상을 위한 단일 대상연구들의 증거기반 실제의 기준이 되는 질적 지표 충족 정도를 살펴본 결과, 질적 지표의 영역별 평균 충족률은 종속변인 96%, 기초선 94%, 대상자 및 환경 91%, 실험통제 및 내적 타당도 91%, 독립변인 78%, 사회적 타당도 64%, 외적 타당도 62% 순으로 나타났다. 또한 각 논문별로 질적 지표의 충족여부를 살펴본 결과 21가지 질적 지표 중 90%에 해당되는 19가지의 질적 지표를 모두 충족시키는 경우는 6편(23%)인 것으로 나타났다. In this study, we investigated literatures done through 2007 to 2013 about the improvement of communication skill in children with autism spectrum disorder. We examined general feature and trends, and performed qualitative analysis based on quality indicator which can be a standard for evidence-based practice(EBP) in single subject research suggested by Horner et al.(2005). In the view of general feature and trends, we first found that more than half studies were performed with three or more children in terms of subject of study, and mainly carried out in the age before 13. Severity of disability was identified evenly from mild and moderate to severe autism. From the side of research environment, more than half studies were performed in many different environments, mostly using multiple baseline design and multiple probe design. Various interventions were conducted as independent variable. Social stories intervention and augmentative and alternative communication intervention(AAC) were employed in more than 4 literatures. In dependent variable, it was confirmed that more that half of studies showed the significant improvement in communication skill. In the analysis of satisfaction level in quality indicator, the average level of areal satisfaction in quality indicator was respectively 96% in dependent variable, 94% in baseline, 91% in subjects and environments, 91% in experimental control/internal validity, 78% in independent variable, 64% in social validity, and 62% in external validity. Besides, among all literatures examined by satisfaction level in quality indicator, 6 literatures (23%) fulfilled the requirements of 19 out of 21 quality indicators.

경사로 활동에서의 유아의 연령에 따른 구성놀이 질의 차이

유영의,성정숙 순천향대학교 인문과학연구소 2007 순천향 인문과학논총 Vol.20 No.-

Dihydroflavonol 4-reductase 유전자를 이용한 담배의 형질전환

유정아,이원숙,이주안,김영채,박영두 경희대학교식량자원개발연구소 2006 硏究論文集 Vol.25 No.-

본 연구는 화색과 관련된 DFR 유전자를 Agrobacterium을 이용한 형질전환 방법으로 담배(Nicotiana tabaccum L.)에 형질전환 시키기 위해 수행되었다. 이를 위하여 배추의 DFR 유전자를 CaMV 35S promotor와 nos terminator를 운반하는 식물 발현용 vector, pCAMBIA 1302에 삽입하였다. 재조합된 벡터 pCAMBIA 1302-DFR은 Agrobacterium tumfaciens LBA4404를 이용하여 담배 식물체 잎 절편체를 형질전환한 후 MS 배지에 1.5 mg·L^(-1) BA, 50 mg·L^(-1) hygromycin 및 200 mg·L^(-1) cefotaxim이 첨가된 1차 선발배지에서 신초를 유도하였다. 유도된 신초는 100 mg·L^(-1) hygromycin과 200 mg·L^(-1) cefotaxim이 첨가된 2차 선발 배지에서 뿌리를 유기하였다. 뿌리가 형성된 재분화 개체는 온실에서 재배하였으며 재배된 담배로부터 genomic DNA를 추출하고 DFR 유전자의 담배 genome내로의 전이여부를 hygromycin primer를 이용하여 PCR 방법으로 확인한 바 형질전환 개체에서 예상했던 365 bp 단편을 볼 수 있었으나 형질전환을 시키지 않은 식물체에서는 PCR 산물을 확인 할 수 없었다. PCR 검정으로 확인된 담배는 화색변이 여부를 관찰하기 위해 온실에서 재배 중에 있다. Dihydroflavonol 4-reductase (DFR) gene was introduced into tobacco (Nicotiana tabaccum L.) plants using Agrobacterium mediated transformation. To introduce this gene, DFR gene was cloned into plant binary vector, pCAMBIA 1302, harboring CaMV 35S promotor and nos terminator. After infection with Agrobacterium tumefaciens LBA4404 containing pCAMBIA 1302, transformed shoots were induced from first selection medium (MS medium + 1.5 mg·L^(-1) BA + 50 mg·L^(-1) hygromycin + 200 mg·L^(-1) cefotaxim). To confirm the transfer of DFR gene in the genome of tobacco plants, PCR was conducted using primers of the hygromycin gene. A PCR fragment of 365 bp was obtained from each transformed plants, which is the predicted size of the hygromycin gene but not from nontransformed plants. Transformed tobacco plants are growing in the greenhouse to analyze phenotypic variation, especially flower color.

유구치 상아질의 각 부위에 적용된 수종의 복합레진 접착제의 미세인장접착강도에 관한 연구

유정은,최영철,최성철,박재홍 大韓小兒齒科學會 2009 大韓小兒齒科學會誌 Vol.36 No.3

본 연구는 유구치 상아질의 각기 다른 부위(표층부, 심층부, 치경부)에서 복합레진 접착제의 접착강도를 비교, 평가하기 위하여 임상에서 흔히 사용하고 있는 서로 다른 4종의 접착방식(3-step total etch: 1군, 2-step total etch: 2군, 2 step self-etch: 3군, all-in-one: 4군)을 적용하고 복합 레진(Light-Core™ Core Build-Up Composite)을 적층한 후, 미세인장접착강도를 비교하였을 때 다음과 같은 결과를 얻었다. 1. 접착방식간의 비교에서 레진의 접착방식에 따른 상아질 각 부위에서의 미세인장접착강도는 제 1군이 표층부에서 뚜렷이 높았으나(p<0.05) 2, 3, 4군은 부위에 따른 차이가 없었다. 2. 부위별 미세인장접착강도를 비교하여 보았을 때 상아질 표층부에서의 미세인장접착강도는 레진의 접착 방식간에 차이가 없었으나, 심층부에서는 2군, 3군, 4군 및 1군의 순으로 나타났고(p<0.05), 치경부에서는 2군과 3군이 1군과 4군에 비하여 현저히 높았다(p<0.05). The purpose of this study was to evaluate the micro-tensile bond strength (μTBS) of four luting resin to regional dentin of human primary teeth. Dentin from non-carious primary molars were prepared from different regions(s, superficial dentin; d, deep dentin; c, cervical dentin), and divided into groups based on anatomical locations and types of luting resins(Scotchbond Multi-purpose: SB ; One-Step: as ; AdheSE Bond: ASE ; G-Bond : GB) : SB-s, SB-d, SB-c; OS-s, OS-d, OS-c; ASE-s, ASE-d, ASE-c ; GB-s, GB-d, GB-c. Luting resins were used according to the manufacturers' instructions, to bond Light-Core™ Core Build-Up Composite) to the exposed dentin specimens in the light-curing mode. After storage for 1 day, μTBS was tested at a cross-head speed of 1 mm/min. Data were analyzed with T-test and two-way ANOVA. The bonding interface and fractography analyses were performed with SEM. The results were as follows : 1. μTBS to superficial dentin was significantly higher than to deep dentin for SB(p<0.05). But there were no significant differences in regional μTBS among as, ASK GB(p>0.05). 2. There were no significant differences in μTBS to superficial dentin among each groups. But, in deep dentin, μTBS of SB-d was significantly lower than those of OS-d, ASE-d, and GB-d(p<0.05). μTBS of OS-d was significantly higher than those of GB-d(p<0.05), but there were no significant differences in μTBS of ASE-d. There were no significant differences among μTBS of ASE-d, OS-d, and GB-d.

화상처리에 우수한 General Purpose Signal Processor의 설계

유재희,최정현 弘益大學校 科學技術硏究所 1995 科學技術硏究論文集 Vol.6 No.-

The VLSI architecture and implementation methodologies for image signal processing, especially for the image communication based on MPEG are presented in this paper. The overviews of MPEG standards and the general requirements on image signal processing are described. Based on those, the powerful instructions suitable for image signal processing are presented. They are conditional branch instructions to ease loop condition test, block read/write instructions to enhance the speed of data fetch from image memory and load/store update instructions to achieve fast contiguous image block load/store from external image memory. The VLSI implementation structures for those instructions are described. Finally, a high speed multiprocessor architecture based on the presented image signal processor is described.

복수의 자율이동로봇의 협조운동에 관한 연구

정원갑,최유식,서호철,이석규,이달해 영남대학교 공업기술연구소 1999 工業技術硏究所論文集 Vol.27 No.2

This paper proposes a fuzzy algorithm for cooperative behaviors of multiple autonomous mobile robots. Each robot makes decision of his behavior based on the information obtained by ultrasonic sensors to measure the position and angles of other robots. To enhance the industrial applicability of the suggested algorithm, we add disturbances of error angle caused by wheel steering when autonomous mobile robot navigates toward next destination point. This algorithm uses the position and velocity information of both the nearest robot and other robots within the detective radius of sensor with different weighting. Based on the fuzzy rule table and fuzzy inference, we obtain the rotational angle of the robots. The effectiveness of the proposed algorithm is shown by some computer simulations where a group of mobile robots encircles with equi-interval. In addition each robots is given weighting value to avoid the wall. Finally, the suggested algorithm shows that the more robots exist, the more effective it is.

웨딩헤어 관련 코디네이션의 이미지 지각 (Ⅰ) : 여대생을 중심으로 Based on Female University Students

정현주,한유정 한국의류학회 2003 한국의류학회지 Vol.27 No.7

This paper looks at perceived images of female university students concerned with various wedding hair coordination including wedding hair styles, veil details and fitting positions and head dresses. To design and experimental test of a wedding dress and hair coordination variables, the content analysis of magazines was performed and hair experts were interviewed. 17 stimuli representing the variables of wedding hair coordination were manipulated and included with hair styles(2), veil details(2), veil fitting positions(2), head dresses(2) and a wedding hat(1). The questionnaire of 445 was carried out and data were statistically processed. As a result, five images of wedding hair coordination were factors loaded, that is, favorable, decorative, smooth, personal and pretty one. Various main and interaction effects were found in images of it regarding to changing hair styles, different veil details and fitting positions and head dresses, favorable images, they affected by interactions between hair styles and veil details, hair styles and veil fitting positions, hair styles and head dresses and between veil details and the fitting positions, For personal images, interactions between veil details and the positions of veil fitting had effects on female students; for smooth images, That is, for hair style, female university students were influenced by favorable and smooth images; for veil details by decorative and smooth images; for the positions of fitting veil, by decorative and smooth images; for the positions of fitting veil, by decorative and favorable ones. Then the researcher examined effects by dual interactions between factors of wedding hair coordination. For decorative images, they were found influenced by interactions between hair styles and veil details and between hair styles and head dresses. For personal ones. interactions between veil details and the fitting positions; for pretty images, interactions between the fitting positions and head dresses. These findings will provide sellers of the wedding dress with the idea of how females to perceive wedding hair coordination according to the variation of it.