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.

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.

Helicobacter pyloir 양성 소화성 궤양에서 lansoprazole 포함 삼제요법의 제균율 및 제균판정에 있어서 요소호기검사의 유용성

정혜경,곽재진,유민아,배기선,권정미,이종수,김도영,문일환 대한감염학회 2003 감염과 화학요법 Vol.35 No.3

목적 : 본 연구는 Helicobacter pylori (이하 H. polyri) 양성인 소화성 궤양 환자에서 lansoprazole 포함 삼제요법의 제균율을 알아보고, 제균 치료 후 제균 판정에 있어서 요소 호기 검사(Urea breath test, 이하 UBT) 및 신속요소분해(rapid urease test, 이하 RUT test)와의 일치율에 대하여 알아보고자 하였다. 방법 : 상부위장관내시경 검사에서 H. polyri 양성인 소화성 궤양환자에서 lansoprazole 60㎎+amoxicillin 2g+clarithromycin 1g의 약제를 2회 분복하여 1주간 복용하는 삼제요법을 실시하였다. 최소 4주후 추적 상부위장관내시경을 실시하였고, 전정부와 체부에서 각각 RUT를 실시하였으며 UBT(5분, 20분)를 시행하였다. 결과 : 대상환자는 총 46명으로 남자 34명(48±13세), 여자 12명(53±14세)이었다. LAC 삼제요법의 제균율은 40/46명(87.0%)이었고, 궤양의 치유율도 42/46명(91.3%)이었다. RUT와 20분 UBT 결과가 모두 음성이었던 경우는 41예, 모두 양성이었던 경우는 4예로 RUT와 UBT는 97.8% (45/46)의 일치율을 보였고, 1예는 UBT는 음성이었으나 체부에서 시행한 RUT가 양성이었다. 5분 UBT 검사가 양성이었던 예는 14/34 (41.2%) 이었고, 이 14예 중 12예(85.7%)는 20분 UBT 검사 음성, RUT 음성이었다. 결론 : Lansoprazole과 amoxicillin, clarithromycin 1주일 병합요법은 H. polyri 양성인 소화성 궤양 환자에서 87.0%의 제균율을 나타내어 우수한 효과를 보였고, 요소호기검사는 제균 치료 후 제균 판정에 유용한 비침습적인 방법임을 확인할 수 있었다. Background : There are only a few studies on Helicobacter pylori (H. pylori) for its eradication rates of lansoprazole-based triple therapy in Korea, and the results are controversial. Therefore, we undertook to investigate the eradication rate of lansoprazole-based triple therapy, and compare the concordance rate of urea breath test (UBT) and rapid urease test (RUT) in evaluating H. pylori eradication. Methods : Patients with acute peptic ulcer who were H. pylori-positive were recruited by prospective, consecutive manner. They received lansoprazole 30 ㎎ b.d., amoxicillin 1 g b.d. and clarithromycin 500 ㎎ b.d. for 1 week. Upper endoscopy was performed after 4 weeks to check for ulcer healing, and UBT and RUT were performed to evaluate H. pylori eradication status. Results : A total of 46 patients were recruited, and they were all compliant. H. pylori eradication rate was 87.0% (40/46) and ulcer healing rate was 91.3% (42/46). Forty one patients showed negative in both UBT and RUT, and 4 patients revealed positive in both tests, therefore, the concordance rate of UBT and RUT was 97.8% (45/46). Conclusion : Our study showed that 1-week lansoprazole-based triple therapy was effective in H. pylori eradication and ulcer healing. UBT can be an effective, noninvasive method for evaluating H. pylori status after H. pylori eradication.

Pseudomonas fluorescens의 Salicylate hydroxylase를 암호하는 유전자의 클로닝

정유선,민경희,이나리 숙명여자대학교 자연과학연구소 1997 자연과학논문집 Vol.- No.8

Pseudomonas fluorescens SME11로 부터 salicylate hydroxylase를 암호하는 nahG 유전자를 클로닝하기 위하여 NAH플라스미드를 주형으로 하여 PCR을 수행하였다. PCR방법으로 얻은 1.6kb DNA절편을 pT7Blue(R)벡터에 삽입시켜 재조합 플라스미드 pNY1을 제조하였으며 이것을 E. coli에 형질전환하였다. 재조합 DNA를 제한효소로 처리하여 EcoRⅤ, KpnⅠ, PvuⅡ, StuⅠ등이 존재함을 확인하였으며, 이것으로 간단한 제한효소지도를 작성하였고 재조합 DNA를 한 방향으로 deletion하여, nahG유전자를 포함한 DNA절편의 염기서열을 결정하였다. 재조합 플라스미드인 pNY1에는 1,305bp크기의 open reading frame이 존재하였으며, salicylate hydroxylase에 해당하는 434개의 아미노산을 암호하였다. 아미노산서열을 비교한 결과, P.putida KF715와 84.1%, P.putida PpG7과 71.4%, P.putida S-1 과 48.7%의 homology를 보였으며, 또한 Sphingmonas sp.와 26.8%의 homology를 보였다. Pseudomonas fluorescens SME11 carrying NAH plasmid was isolated from wastewater. To clone nahG gene encoding salicylate hydroxylase, 1.6kb DNA fragment of PCR product from NAH plasmid was inserted to pT7Blue(R) vertor and resulting recombinant DNA was named pNY1. The transformants, E.coli SMY1, clone containing the recombinant plasmid pNY1 were able to convert salicylate to catechol and produced dark brown color caused by accumulation and auto-oxidation of catechol. Restriction endonuclease mapping of 1.6kb size of the insert of the recombinant plasmid pNY1 was carried out with EcoRⅤ, KpnⅠ, PvuⅡ, StuⅠ. By means of unidirectional ExoⅢ deletion and dideoxynucleotide chain termination, we determined the nucleotide sequence of the DNA fragment containing nahG gene. One open reading frame of 1,305 bp corresponding to 434 amino acids was found in the insert DNA. Deduced amino acid sequences of the nahG gene showed 84.1%, 71.4%, 48.7%, and 26.8% homologies to those from P.putida KF715, P. putida PpG7, P. putida S-1, and Sphingmonas sp., respectively.

환경 친화적 Bi-황동의 응력부식균열에 관한 연구

劉承宰,崔允碩,金正九 대한금속재료학회 2002 대한금속·재료학회지 Vol.40 No.6

The purpose of the present investigation was to study the stress corrosion cracking (SCC) properties of environmentally friendly Bi-brasses in Mattsson's solution (0.05M copper sulfate and 0.5M ammonium sulfate, pH 7.4) at room temperature. Three unleaded brasses with Bi content ranging from 1 to 3 wt% and a conventional leaded brass for comparison were investigated. The effect of Bi on SCC of unleaded brasses was studied through polarization test, electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM, energy dispersive spectroscopy (EDS) and slow-strain-rate test (SSRT). Potentiodynamic polarization studies indicated that the corrosion resistance of Bi-containing brasses was improved as the content of Bi, which showed a passivating characteristic in Mattsson's solution, increased. The Pb- and Bi-containing brasses presented an inductive behavior on impedance data in low frequency region at the open-circuit potential (OCP). Such behavior could be attributed to the adsorption process on the alloy surface. The observed dezincified layers after SSRT should be particularly good initiators of SCC as they could induce tensile stress. As the content of Bi increased, the thickness of dezincified layer and the volume fraction of preferentially attacked Β phase decreased, therefore, SCC resistance of the Bi-containing brasses was improved.

경사로 활동에서의 유아의 연령에 따른 구성놀이 질의 차이

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

미술활동이 유아의 정서와 심리에 미치는 효과 : 5~7세 유아 대상

정유선 이화여자대학교 교육대학원 2003 이화교육논총 Vol.13 No.-

As with the advancement of psychology or pedagogy, the significance of art education in education fields has been raised newly by leading figures in the educational world, and art education has also become acknowledged as a basic field in infant education. Infant art is closely related with the development of infants and the experience of art activity as a means of self-expression involves social, cognitive and creative values. In addition, infants have a variety of experiences through the motivation of painting, the processes of art activity and the sense of achievement after completion. Especially, infant art may imply the important meaning that it can encourage the psychological development of infants, purify their emotions, and furthermore contribute to the formation of a harmonious human being by development into more positive activity, as a means to express psychological desires by stimulating natural expressions from the bottom of their hearts and emotional instinct. From the viewpoint as an art instructor who has instructed directly infants in the art education field of an social education institution since 1992, the researcher attempted to understand the psychological inner world implied through their art activity and to apply the result to art education. This study corresponds to a case study based on the theoretical background that art activity in infancy when the desire for self-expression starts to emerge positively, as the most important period in growth of a human being, affects positively the emotional and psychological changes of infants. For analysis of this study, using an art education program for normal group, art lessons of total 24 times were conducted for six months; the subjects were the infants who tended to show impulsive/excessive behavior, passive/anxious behavior or ostentatious/perfectionist behavior among at 5- to 7-year-old normal infants whom the researcher directly instructs. The researcher analyzed findings from the process and changes in their behaviors and tried to identify the effect of art activity through questionnaire for their parents and observer's report of the researcher. The results of this study were as follows. First, for the infants who had showed impulsive/excessive behavior, passive/anxious behavior or ostentatious/perfectionist behavior, the art activity brought them into decrease in such problematic behavior and easing in problematic expression in their works of art through observing the results of art activity and their behavior during the lessons, questionnaire for their parents and consultation. Second, for the infant, corresponding to a case subject F, who tended to show ostentatious/perfectionist behavior, although the extremely perfectionist behavior was reduced through the art activity, the exceedingly ostentatious behavior appeared partly even till the last phase of this study. Probably, this suggests that a good home environment and their parents' concern as well as the instructor's efforts to induce change in infant behavior should be required simultaneously to get a constant effect. In conclusion, art activity in infancy should be effectively instructed in consideration of the education-for-the-whole-man functionality to develop infants' creativity and expressivity and infant characteristics such as environment, individual behavior or psychological status, kicking off the traditional guidance just emphasizing the result focused on its functionality. To do so, before art education is allied as a means to treat and diagnose a problem related to learning and sociality incurred after entering school, appropriate programs to prevent normal infants' behavior or slightly problematic behavior from developing into pathologically serious behavior should be developed. Furthermore, if instructors and parents lead the improvement of suitable environment for that, it is sure that infants will grow to be healthy children in emotional and psychological aspects through art activity.

사회성 훈련 프로그램이 발달장애아동의 사회성 및 적응행동에 미치는 효과

유은희,양정남,이숙자 동신대학교 2005 論文集 Vol.15 No.-

The Effects of a Social Skills Program on Improving Sociability, and Adaptive Behaviors of Children with Developmental Disabilities. The purpose of this study was to investigate the effects of a social skills program on improving social skills, and adaptive behaviors of children with developmental disabilities. A total of nine children at the Language Therapy Center for children and adolescents in Gwangju Metropolitan City participated in this study with the consent from their parents. The research was conducted following one-group pretest-posttest design, a preexperimental design. A social skills program was implemented once a week with 90 minutes per session for 15 weeks. The effects of the program were evaluated by administering Social Maturity Scale, and Adaptive Behavior Scale before and after the program. The results showed that the scores in social maturity, and adaptive behavior scales, respectively, increased from pretest to posttest. This study concluded with a discussion on the implications of social skill programs for improving social skills, and adaptive behaviors of children with developmental disabilities in the field of social welfare. Implications and suggestion for future studies was discussed.