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      • 의류제품 구매에 있어서 유통채널갈등과 가격단서 지각

        양원정;서민정;박재옥;이규혜 한양대학교 2006 韓國 生活 科學 硏究 Vol.26 No.2

        Differentiated On Off line channel strategies are getting more attention due to conflicts between Off line channel and active E commerce. Choosing an appropriate channel strategy can prevent apparel products from clashing in market and manage each channel more efficiently. In fashion industry, product prices are flexible because of the short product life cycle and different distribution channels. It is essential to understand consumers’ apparel price cue perception when purchasing apparel in both On line and Off line. The objectives of this study was to examine the effects of apparel price cues on perceived savings and purchase intention in On line versus Off line retail channel. 303 quetionnaires from internet experienced women were used for the data analysis. Statistical analyses employed in this study were descriptive statistics, reliabilities conjoint analysis and regression. Overall, the perceived importance of apparel price cues were different between On line and Off line channels and each apparel price cue affected perceived savings and purchase intention differently according to distribution channels. Therefore, by considering characteristics of apparel price cue in On line versus Off line channels, differentiated channel strategies should be imposed to implement more effective marketing strategies.

      • Streptococcus salivarius 119의 인공치태 억제효과에 대한 연구

        이민하,양규호,오종석 전남대학교 치과대학 2000 전남치대논문집 Vol.12 No.1

        Streptococcus salivarius is a normal inhabitant in the human oral cavity. Streptococcus salivarius 119 in this study was isolated from the oral cavity of child and identified, and its action mechanism on the formation of denal plaque by Streptococcus mutans was studied. 1. The optical density of absorbance at 550 nm was 0.327 in the culture of Streptococcus mutans in disposable cuvette, whereas being 0.119 in the combined culture of Streptococcus mutans and Streptococcus salivarius 119. 2. The mean weight of produced artificial plaque on the wires in the beaker was 84.7mg in culture of Streptococcus mutans only, whereas being reduced to 12.3 mg in the combined culture of Streptococcus mutans and Streptococcus salivarius 119. 3. When Streptococcus mutans was cultured in the media containing culture supernatant of Streptococcus salivarius 119 in BHI broth, the mean weight of produced artificial plaque was 100.5 mg on the wires, whereas being reduced to 20.4 mg in the media containing culture supernatant of Streptococcus salivarius 119 in BHIS broth. 4. The viable cells of Streptococcus oralis and Streptococcus salivarius 119 were 4.8×10^7 and 7.5×108 per ml respectively after each culture, wheras being 4.2×10^7 and 5.8×10^7 per ml in the combined culture of Streptococcus oralis and Streptococcus salivarius 119. 5. The polymer produced by Streptococcus salivarius 119 was glucan on the thin layer chromatography. 6. The glucan produced by Streptococcus salivarius 119 was water-soluble glucan containing 1→6 linkages as the main linkage on the thin layer chromatography. These results suggested that isolated Streptococcus salivarius 119 inhibited the formation of artificial plaque by the production of water-soluble glucan.

      • KCI등재후보
      • 포도상구균의 약제 내성 및 β-lactamase의 생산에 관하여

        양재윤,박상욱,이용진,조규봉,이연태 단국대학교 신소재기술연구소 1994 신소재 Vol.4 No.-

        항균제의 오남용으로 내성균의 출혈빈도가 매우 높아져 임상가에서는 환자치료에 어려움이 적지 않다. 특히 많은 균종중에서 병원감염의 문제가 되고 있고 포도상구균에 대한 내성빈도는 환자치료에 중요하다고 판단된다. 따라서, 1992년 12월부터 1993년 2월 사이에 서울대 병원에 내원(來院)한 환자로부터 총 108주의 포도상구균을 분양 받아 항균제 내성검사를 실시하였고 황색포도상구균의 경우는 β-lactamase 생산유무 확인 및 methicillin에 대한 MIC 농도를 비교하였으며, methicillin에 대하여 각기 다른 MIC농도를 갖는 균종에 대한 substrate 분해능 검사를 실시하여 다음과 같은 결론을 얻었다 (1). 항균제 내성검사를 실시한 108주의 포도상구균은 penicillin에 가장 높은 내성을 나타냈다. 황색포도상 구균의 경우는 97%, 표피포도상 구균의 경우 100%, coagulase 음성포도상구균의 경우 95.7%로 나타났다 (2). vancomycin의 경우는 전 균주가 감수성을 나타냈다 (3). methicillin에 대한 내성율은 41.4%로 나타났다. 이 내성균주들은 10가지 검사 항생제중 최고 9가지에 대한 항균제 내성을 나타내어 다약제 내성임을 알 수 있었다 (4). β-lactamase 생산 실험에서는 58균주의 황색포도상 구균중 53주가 양성을 나타내어 91.4%의 결과를 얻었다. β-lactamase 생산균주와 methicillin에 대한 내성균주가 반드시 일치하지는 않았다 (5). Spectrophotometric assay에서는 내성이 높은 균주와 낮은 균주간에 β-lactamase에 의한 substrate 분해능이 서로 유사하게 나와 황색포도상 구균의 methicililin에 대한 내성 획득은 β-lactamase 뿐만이 아닌 penicillin binding protein(PBP)의 구조적 변화로 인한 내성획득도 시사함을 알 수 있다. One hundred and eight Staphylococcus aureus strains were isolated from patients of Seoul National University Hospital from December 1992 to Feburary 1993. All strains were tested for their sensitivities against antibiotics. β-lactamse producing test was also performed in order to know the relationship between the methicillin resistance and β-lactamase production. Its activity was determined by direct spectrophotometric method. Initial velocities of hydrolysis of the antibiotics were monitored at wavelength 323 nm which corresponded to maximal change in absorbance between the unhydrolyzed substrate and the hydrolyzed product. The results are summarized as follows: 1. In antibiotics sensitivity test of 108 isolated strains of Staphylococcus, they showed hightest resistance to penicillin but all of tested strains were susceptible to vancomycin. 2. 41.4% of them showed resistance to methicillin. 3. All methicillin resistant strains were found to be multi-drug resistant, from 3 to 9 antibiotics. 4. 91.4%(53 out of 58) produced β-lactamase, β-lactamase producing strains did not always coincide with the methicillin resistant strains. 5. β-lactamase activities were similar among staphylococus strains, irrespective of their methicillin resistance.

      • KCI등재

        인터넷 메타데이타 검색 및 관리 시스템의 설계 및 구현

        이원석,박경용,양영종,정효택,김순용,이규철 한국문헌정보학회 1997 한국문헌정보학회지 Vol.31 No.2

        인터넷은 디지탈 형태의 다양한 정보를 신속하게 전달한다는 점에서 매우 각광을 받고 있다. 그러나, 대량의 인터넷 정보 중에서 자신이 원하는 정보 자원을 정확하게 많이 얻어 낼 수 있는 방법의 제공은 매우 어려운 문제이다. 본 논문에서는 인터넷 정보 자원의 메타데이타를 관리하기 위해 SeriCore라는 SGML 형식의 메타데이타 DTD(Document Type Definition)를 정의하고, 이들 메타데이타를 효율적으로 저장하고 검색, 관리할 수 있는 시스템을 설계, 구현하였다 The Internet has gained popularity because ot provides various information in digital format. However, it is very difficult to provide methods which make it possible to search adequate information resource from bulk of Internet information. In this paper, we define a SGML metadata DTD, named SeriCore, and design and implement a metadata retrieval and management system which can store, retrieve and manage the Internet metadata efficiently

      • Halogen lamp 광조사기와 Plasma xenon arc lamp 광조사기에 의한 광중합 복합레진의 중합률 비교

        이영준,최남기,양규호 전남대학교 치의학연구소 2002 구강과학 Vol.14 No.4

        Light-cured composite resin that is widely employed in esthetic restorative dentistry shows different degree of polymerization according to chemical composition of resin product, intensity and exposure time of curing unit, method of filling etc. Light cured composite resin is required of multi-layered curing with proper thickness to minimize the problems like insufficient polymerization or polymerization shrinkage. However, it brings the increment of total chair time. Recently. new light curing unit utilizing the plasma xenon arc lamp is introduced. This curing unit is operated at relatively high intensity so shortening the curing time signifiantly. The aim of this experiment was to estimate curing capability of plasma xenon arc lamp curing unit compared to traditional halogen lamp curing unit. Resin specimens were prepared in aluminum mold with diameter of 7mm and thickness of 1mm, 2mm, 3mm. Degree of polymerization was evaluated by Raman spectroscopy after irradiation of specimens with halogen lamp curing unit(Optilux 15O, Demetron, USA) for 20s, 40s. 60s and plasma xenon arc lamp curing unit(flipo, Lokki. Francr) for 2s, 3s, 6s. The following results are obtained. 1. The light intensity was 472mW/cm^2 in halogen lamp curing unit (Optilux 150. Demetron, USA) and 1945mW/cm^2 in plasma xenon arc lamp curing unit (flipo, Lokki, France) In both curing units, the range of wavelength was between 370 and 520nm and showed peak intensity at about 470nm. 2. The degree of conversion at exposured surface was increased significantly with increment of exposure time in both curing unit(p<0.01). Overall degree of conversion was higher in halogen lamp curing unit when compared to plasma xenon arc lamp curing unit, but there was no significant difference. 3. In both curing unit, the degree of conversion at bottom surface was decreased significantly according to an increase in thickness(p<0.05). In thickness of 3mm cured with plasma xenon arc lamp curing unit, the degree of conversion showed decreased values significantly compared to thickness of 1,2mm(p<0.01). 4. In halogen lamp curing unit, the degree of conversion increased in all thickness as exposure time increased, but there was no significant difference in 1.2mm thickness. Plasma xenon arc lamp curing unit showed significantly increased degree of conversion as increase of exposure time in all thickness (p<0.01). From the above results, it was concluded that strong light intensity of plasma xenon arc lamp curing unit did not compensate for short exposure time completely. So. Multi-layered curing within 2mm thickness and additional exposure time Is recommanded when light-cured cpmposite resin is polymerized with plasma xenon arc lamp curing unit.

      • KCI등재

        갑상선기능저하증에 기인한 내인성 급사 1예 보고

        이정규,전지현,김민정,이규재,김한겸,조현득,채양석 大韓法醫學會 1999 대한법의학회지 Vol.23 No.2

        Although it is known that hypothyroidism can cause cardiac dysfunction, it is very hard to find a case report on sudden death due to hypothyroidism. There are only two reported cases on mediline; one is about a 15-year-old girl who died suddenly of Hashimoto's thyroiditis and the other is about a 31-year-old man who also died suddenly of hypothyroidism associated with chronic lymphocytic thyroiditis. Recently we found a young woman who unexpectedly died while she was sleeping. She was diagnosed as hypothyroidism when she went to hospital about a month before she died. At autopsy there were roughly four abnormal findings; Hashimoto's thyroiditis, mild chronic active hepatitis, diverticulosis and accessory spleen. Trace of chlorpheniramine was detected in gastric remains and blood alcohol level was 0.37 percent. To our knowledge, this is the first case reporting sudden and unexpected natural death associated with hypothyroidism in Korea.

      • 위암 환자의 복강내 투여를 위한 Activated Charcoal-Alginate Bead 제형으로부터 Mitomycin C의 용출 거동

        이진호,최선웅,서중기,김동민,정경수,오정연,김진향,노승무,민병무,김용백,김창식,박근성,강대영,송규상,양준묵,조준식,정현용,김학용,인현빈 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.1

        Locoregional recurrence is the most common type of recurrence in surgical operation of gastric adenocarcinoma, and peritoneal dissemination is one of the most difficult problems in advanced gastric adenocarcinoma treatment. Because the peritoneal cavity is the most common site of the first recurrence after gastric cancer resection, intraperitoneal chemotherapy seems a logical choice for cancer chemotherapy. In this study, Mitomycin C (MMC)-activated charcoal (CH)-alginate (ALG) beads were prepared by the mixtures of CH particles adsorbed with MMC as an anti-cancer drug and aqueous alginate solution. The alginate is recognized as biodegradable, nontoxic, and biocompatible. The release of MMC from the beads in 0.1 M Tris buffer was stable and continuous until about 1 week. The MMC-CH-ALG beads can be applied in the peritoneal cavity for intraperitoneal chemotherapy since they provide a good adhesiveness on the tissue and controlled release pattern of the drugs.

      • KCI등재

        청소년의 영구치 맹출 지연에 관한 증례

        양규호,이가연 大韓小兒齒科學會 1990 大韓小兒齒科學會誌 Vol.17 No.1

        The 15 year-old boy patient complained of delayed permanent teeth eruption. The authors found multiple dentigerous cysts involving many permanent teeth through radiographic fingdings. We observed as follows: 1. Most of primary teeth were remained and only six permanent teeth erupted. Cystic lesions were found around the crown of impacted mandibular laterar incisors, canines, 1st molars and maxillary right lateral incisor, canine throught radiographs. It was shown that there were teeth anomalies of mandibular second premolars, taurodontism of maxillary first molars, dilacerated roots of many teeth and ectopic eruption of maxillary left second premolar and mandibular right first molar. 2. Pediatric clinical, laboratory, radiographic findings and growth and thyroid hormone tests were non specific. 3. Specific hereditary characteristics were not found in his families. 4. Tooth eruption progressed after marsupialization of cyst, but serial observation is required.

      • KCI등재

        Streptococcus salivarius 119의 인공치태 억제효과에 대한 연구

        이민하,오종석,양규호 大韓小兒齒科學會 2000 大韓小兒齒科學會誌 Vol.27 No.1

        경조직 우식으로 발생하는 치아우식증은 다인성 질환으로서 치태내 세균중에서도 Streptococcus mutans가 주 원인균이며, 치면에 부착, 증식 및 산생성 과정을 거쳐 치아우식을 유발한다. Streptococcus salivarius는 사람의 구강에 정상적으로 존재하는 세균이다. 본 연구에서는 소아의 구강으로부터 분리된 Streptococcus salivarius 119의 특성과 Streptococcus mutans및 Streptococcus oralis에 대한 영향을 연구하여 다음과 같은 결과를 얻었다. 1. Streptococcus mutans를 일회용 큐벧에서 배양시 550nm에서의 흡광도가 0.327이었으나, Streptococcus nutans와 Streptococcus salivarius 119의 혼합 배양시에는 0.119로 감소되었다. 2. 비커 와이어 검사에서 Streptococcus mutans 배양시 형성된 인공치태 무게는 84.7mg이었으나, Streptococcus mutans 와 Streptococcus salivarius 119 혼합 배양시에는 12.3mg으로 감소되었다. 3. BHI broth에서 배양된 Streptococcus salivarius 119배양 상청액을 가한 비커 와이어 감사에서 형성된 인공치태 무게는 100.5mg인데 반해 5% 자당이 함유된 BHI broth에서 배양된 Streptococcus salivarius119 배양 상청액을 가한 비커와이어 검사에서는 20.4mg이었다. 4. Streptococcus oralis와 streptococcus 119단독 배양시에는 각각 ml당 4.8x 107, 7.5x107 이었으나, 혼합배양시에는 Streptocccus oralis는 4.2x107, Streptococcus salivarius 119는 5.8x 107으로 감소하였다. 5. Streptococcus salivarius 119 배양 상청액을 thin layer chromatography를 실시한 결과, Streptococcus salivarius 119가 형성한 polymer는 글루캔이었다. 6. Streptococcus salivarius 119가 만드는 글루캔을 처리하여 thin layer chromatography를 실시한 결과, 1→6 결합이 주된 결합인 수용성 글루캔이었다. 이상의 결과를 종합하면 구강에서 분리된 Streptococcus salivarius 119에 의한 Streptococcus mutans의 인공치태 형성 억제작용은 수용성 글루캔 형성에 의한 것으로 사료되었다. Streptococcus salivarius is a normal inhabitant in the human oral cavity. Streptococcus salivarius 119 in this study was isolated from the oral cavity of child and identified, and its action mechanism on the formation of denal plaque by Streptococcus mutans was studied. 1. The optical density of absorbance at 550nm was 0.327 in the culture of Streptococcus mutans in disposable cuvette, whereas being 0.119 in the combined culture of Streptococcus mutans and Streptocccus salivarius 119. 2. The mean weight of produced artificial plaque on the wires in the beaker was 84.7mg in culture of Streptococcus mutans only, whereas being reduced to 12.3mg in the combined culture of Streptococcus mutans and Strreptococcus salivarius 119. 3. When Streptococcus mutans was cultured in the media containing culture supernatant of Streptococcus salivarius 119 in BHI broth, the mean weight of produced artificial plaque was 100.5mg on the wires, whereas being reduced to 20.4mg in the media containing cultyre supernatant of Streptococcus salivarius 119 in BHIS broth. 4. The viable cells of Streptococcus oralis and Streptococcus salivarius 119 were 4.8x107 and 7.5x 107 per ml respectively after each culture, wheras being 4.2x 107 and 5.8x 107 per ml in the combined culture of Streptococcus oralis and Streptococcus salivarius 119. 5. The polymer produced by Streptococcus salivarius 119 was glucan on the thin layer chromatography. 6. The glucan produced by Streptococcus salivarius 119 was water-soluble glucan containing 1→6 linkages as the main linkage on the thin layer chromatography. These results suggested that isolated Streptococcus salivarius 119 inhibited the formation of artificial plaque by the production of water-soluble glucan.

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