검색결과

검색조건
좁혀보기
검색필터
결과 내 재검색

간행물

    분야

      발행연도

      -

        검색결과 94

        62.
        2010.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The objective of this study was to develop high quality Riceyeotgangjung (RYG) with high antioxidant activity and a longer shelf-life. Spirulina (1, 2, and 3%) with added RYG was prepared, and antioxidant activities were examined under storage at 60℃ for 15 days. The total phenol content remaining in the spirulina with added RYG at 15 days of storage was much higher than that of fresh RYG without spirulina. The IC50 values for DPPH and hydroxyl radical scavenging activities decreased with increasing amounts of spirulina, whereas these values increased with storage time. TBA and peroxide values decreased with increasing amounts of spirulina. From these results, adding spirulina to RYG delayed lipid rancidity and prolonged shelf-life. Adding spirulina powder to RYG, which is a healthy functional food material, improved antioxidant activity and delayed deterioration during storage.
        4,000원
        63.
        2010.08 구독 인증기관 무료, 개인회원 유료
        본 연구는 그동안 영화, 텔레비전, 만화, 잡지, 광고 등 각 분야에서 이루어졌던 미디어 폭력물 연구를 이용자 제작콘텐츠로 확장하고자 하는 문제의식에서 출발하였다. 여러 형태의 이용자 제작콘텐츠 중 제작과 유포가 용의하고 누구나 여러 인터넷 게시판을 통해 쉽게 접근이 가능한 웹툰을 중심으로 하여, 폭력물 연구의 초석을 다지고자 내용분석을 통해 폭력성의 수위를 객관적으로 점검해보았다. 웹툰의 경우 포털사이트에서 고료를 지급받는 전문적 작가진에 의해 서비스되는 웹툰과 다양한 커뮤니티 게시판 등에서 일반 이용자들이 자유롭게 제작하고 유포하는 웹툰이 구분될 수 있어, 제작 주체 간 웹툰의 폭력성에 차이가 보일 것으로 예상하였다. 분석은 영화와 텔레비전 폭력물의 내용분석에서 사용된 PAT단위 분석을 통해 진행되었다. 분석결과, 폭력적 행위가 묘사된 웹툰은 표집 대상의 60%정도로 나타났다. 한편, 폭력 연구에서 최근 주목 받기 시작한 언어적 폭력이 웹툰에서는 물리적 폭력만큼이나 높은 빈도를 나타내는 것을 확인 할 수 있었다. 또한 웹툰의 폭력성에 대한 기준이 마련되어 있지 않지만, 텔레비전의 폭력성을 연구한 기존의 연구에 비추어보아, 그 심각성이 간과할 수 없는 수준임이 밝혀졌다. 제작주체별로 웹툰의 폭력성 빈도와 강도, 맥락적 요인에서 차이점이 존재함을 확인하였다.
        7,800원
        64.
        2009.08 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 연구에서는 영재아를 위한 어머니 역할을 알아보기 위하여 국내 외 선행연구를 종합하여 영재부모 양육 방식을 정리해서 분류해 보았다. 또한 이를 가지고 한국과학영재학교에 재학 중인 9명 학생들의 어머니들을 대상으로 자녀 양육 사례에 적용하여 한국적 맥락 안에서의 영재교육과 관련된 부모 역할 동향을 확인하고자 하였다. 연구 결과의 데이터는 사전에 준비한 질문과 질적 데이터 수집에 사용되는 반구조화된 인터뷰 방식으로 수집하였다. 먼저 선행 연구 고찰을 통해서 영재 부모의 다양한 역할을 크게 교육자, 후원자, 대화자, 훈육자로서의 부모로 분류하는 틀을 개발 하였다. 이를 가지고 인터뷰를 분석한 결과, 인터뷰 대상자들의 역할은 선행연구에서 제시된 영재 부모 역할이 거의 유사하게 나타나고 있었다. 다만 사례 분석 결과 우리나라의 영재교육에서는 특별히 어머니가 자녀의 인적 네트워크 형성에 직접적으로 관여하고 있는 경우와 학령기 전에 문자 습득의 과정이 부모의 영향뿐만 아니라 가정에서 형제자매를 통해서 자연스럽게 이루어지도록 조절해 주는 부모 역할이 두드러지게 나타나고 있음을 발견할 수 있었다.
        5,200원
        68.
        2007.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 논문에서는 우리나라에 58개 지역에 분포하는 2 배체 및 3배체 참나리 86계통을 이용하여 각 genome 간의 유연관계와 유전적 변이성을 분석하기 위해 RAPD 분석을 실시하였다. 참나리의 배수성은 flow cytometer에 의해 분석되었다. 그 결과 PCR반응에 사 용된 10개의 RAPD primer에서 총 69개의 band가 관찰되었으며, 이중에서 다형화를 나타내는 band의 수 는 42개(60.9%)로, 1개의 RAPD primer당 평균 4.2 개의 다형화 band가 관찰되었다. 수집된 참나리 86계 통에 대하여 RAPD 분석에서 증폭된 다형화 band들 을 이용하여 UPGMA 방법에 따라 dendrogram을 작 성하였다. 그 결과 유전적 유사성 85% 수준에서 크게 2개의 그룹으로 분리되었는데, 첫 번째 그룹에는 강화 도를 포함한 내륙지역에서 수집한 대부분의 3배체 계 통들과 일부 예외적인 2배체 12계통을 포함하고 있었 으며 두 번째 그룹에는 대부분의 2배체 계통들과 백령 도에서 수집한 3배체 1계통(42) 그리고 2배체와 중나 리간에 교잡된 2계통(60, 61)을 포함하고 있었다. 대체 로 3배체 참나리는 제 I 그룹에 포함되었고 2배체 참 나리는 제 II 그룹에 포함되었다. 유전적 변이성은 3 배체 참나리 집단보다 2배체 참나리 집단에서 보다 높 은 것으로 나타났다.
        4,000원
        71.
        2006.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        휘발성 유기화합물로서 3가 염소탄화수소인 트리클로로메탄, 트리클로로에탄, 트리클로로에틸렌을 MFI 구조인 소수성 제올라이트 ZSM-5 분리막으로 투과증발을 이용하여 물과의 이성분계 혼합물로부터 선택적으로 분리하고자 하였다. 직경 9.5 mm 다공성 스테인리스 스틸 튜브의 내부 표면에 수열합성법으로 ZSM-5 제올라이트 결정을 성장시켜 박막을 만들어 분리막으로 이용하였으며, 합성된 ZSM-5 제올라이트 분리막으로 공급되는 3가 염소화합물의 농도 및 실험 온도에 따른 분리 특성을 고찰하였다. 3가 염소화합물의 수용액상 농도를 0.0001 몰분율부터 0.001 몰분율로 변화하면서, 또한 실험 온도를 25에서 45℃로 바꾸면서 투과증발 실험을 수행한 결과 트리클로로메탄/물 이성분계에 대하여 약 16~66의 선택도를 얻었으며, 트리클로로에탄/물 이성분계에 대하여 3.3~4.6의 선택도와 트리클로로에틸렌/물 이성분계에 대하여 1.4~8의 선택도를 관찰할 수 있었다.
        4,000원
        73.
        2004.12 구독 인증기관 무료, 개인회원 유료
        The inhibitory effects of water extract of Cortex Mori(CM) was investigated for allergic asthma in a mouse model. Experimental allergic asthma was induced by repeated intraperitoneal sensitization and aerosol challenge of ovalbumin (OVA). CM extract (10mg/mouse/day) was administrated orally whereas control mice were given with identical volume of phosphate-buffered saline (PBS) for 7 days during the course of challenge. When airway hyperreactivity(AHR) measured by β-methacoline-induced airflow obstruction was compared, AHR of CM-treated mice was significantly lower than those of control mice, indicating that CM extract can attenuate an asthmatic symptom. Airway recruitment of leukocytes and cytokine levels in broncho-alveolar lavage fluid (BALF) was analyzed in order to evaluate CM effect on pulmonary inflammation. Total number of leukocytes in BALF was lower in CM-treated mice than in control without significance. Interestingly, CM treatment elevated a distribution of eosinophils which are crucial in asthmatic response. However, comparison of absolute number showed that it resulted from a decrease of total leukocyte and macrophage numbers. Levels of type 2 (Th2) cytokines (IL4, IL5 and IL 13) measured by ELISA in BALF were not significantly reduced by CM and IFN-γ, a type 1 (Th1) cytokine, was also comparable between two groups, indicating that CM treatment has little or no effect on airway inflammation and secretion of relevant cytokines. For an insight into the mechanism of CM effect on AHR, immunemodulatory activity of CM was analyzed at a cellular level. Peribronchial lymph node(LN) cells and lung-infiltrating lymphocytes (LIL) collected from CM-treated and control mice were in vitro stimulated with OVA antigen. Although there was no significance, number of LN cell and LIL was higher in CM-treated mice than controls and their Ag-specific proliferative response (3H-TdR uptake assay) was similar. Production of Th2 cytokine, IL 5 and IL 13 was relatively enhanced, but without statistical significance, while IFN-γ production was minimally altered in CM-treated mice. Immunemodulation of CM in the field of humoral immunity, antibody levels in serum were measured and compared. No significant difference was observed in the levels of IgE. However, levels of type 1 and 2 antibody IgG2a and IgG1 were signifcantly enhanced by CM treatment. As CM-mediated alleviation of AHR was not clearly explained by above results, degranulation of eosinophils was finally examined by their release of peroxidase. Levels of peroxidase in BALF was significantly lower in CM treated mice, suggesting that CM inhibits in vivo degranulation of eosinophils, although its effect was not shown during their in vitro incubation. Taken together, data from current study indicate CM extract alleviates AHR through inhibition of eosinophil degranulation rather than any immunological regulation. Instead, immunemodulatory activity of CM is likely to be adversely effective in (Th2)
        5,700원
        74.
        2004.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        4,000원
        75.
        2003.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The temporomandibular joint (TMJ) showed characteristic anatomy and functions contrast to the other joints. In particular, children or young adolescent with the progressive temporomandibular disorder (TMD) showed remarkable changes in their mandibular growth and occlusion. The purpose of this study was to elucidate the functional and biomechanical causes for the maxillofacial deformities of TMD. A typocranial experiment was performed using a plastic skull model by simulating the mandibular movement after condylectomy. The directional forces of masticatory and suprahyoid muscles were reproduced on the typocranial skull model by elastics connecting between mandible and adjacent bony structures. Resultantly, the mandible of unilaterally or bilaterally condylectomized mandible was rotated downward and backward by the activation of masticatory and suprahyoid muscles. When unilaterally or bilaterally condylectomized mandible was activated by masticatory, suprahyoid and perioral muscles, the mandible was less rotated downward and backward than the cases activated by masticatory and suprahyoid muscles only. In the typocranial experiment after unilateral condylectomy the mandible was rapidly deviated toward the affected side, but this deviation was much reduced when the mandible was intensely supported by perioral muscles. By the compensatory response against the overload of TMJ due to the mandible body resection the typocranial experiment also produced the deepening of antegonial notch by the increased force of mylohyoid and perioral muscles. These findings suggest that after condylectomy the posterior fibers of mylohyoid and perioral muscles become hypertrophic and induce the characteristic mandibular deformities, i.e., deepening of antegonial notch and bowing of posterior ramus, which are similar to the mandibular changes in the progressive TMD.
        4,900원
        76.
        2003.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Osteoarthrosis in TMJ is known to accompany characteristic features of the craniofacial malformation and malocclusion. In order to explain the mechanism that brings about the typical mandibular changes relating to the frequent clinical symptom, i.e., the limited mouth opening in TMJ patients. The present study investigated the mandibular morphology of the rabbit, also intentional TMJ osteoarthrosis was performed on the TMJ of the rabbits and their morphological changes were observed. A total of 12 New Zealand house rabbits weighing an average of 3 kgwere used and all left side joints were surgically meniscectomized and right side joints were used as controls. The rabbits were sacrificed in one week, two weeks, one month, three months and 5 months after the menisectomy, and the removed TMJs were examined by histological and radiographical methods and analyzed statistically. It was found that the mandibular morphology caused by osteoarthritis in the TMJ was characterized by the decrease in size of the ascending ramus, posterior ramus bowing, deep antegonial notch and thickening of the cortex in inferior and posterior borders of the mandible, that the similar features were also observed in the rabbit mandible. When the menisectomy was performed in the unilateral side of rabbit TMJ, the mandibular changes including the increased depth of antegonial notch and posterior ramus bowing occurred only on the affected side. These data suggested that the limitation of the mandibular movement and altered masticatory pattern by meniscectomy affects the structural remodeling of the mandible and TMJ likely the TMJ osteoarthrosis
        4,500원
        77.
        2017.12 KCI 등재 서비스 종료(열람 제한)
        This study evaluated the quality characteristics, polyphenolic compounds, and radical scavenging activity of cooked-rice added to commercially available mixed grains. L-value of cooked-rice with various mixed grains decreased compared to that of cooked-white rice; however, a- and b-values increased. Hardness and elasticity of cooked-rice added to various mixed grains were significantly lower in the pressure cooker compared to the electric cooker. There was no significant difference in adhesiveness and stickiness between rice from the electric cooker and pressure cooker. Total polyphenol and flavonoid contents of cooked-rice added to various mixed grains were significantly increased. The average total polyphenol content of cooked-rice added to various mixed grains cooked in an electric cooker and pressure cooker were 16.50 ± 3.86 and 15.88 ± 3.52 mg gallic acid equivalent /100 g, and flavonoid contents were 1.58 ± 0.00 and 1.55 ± 0.02 mg catechin equivalents/100 g, respectively. The average of 1,1-diphenyl-2-picrylhydrazyl radical scavenging activity was 9.27 ± 2.62 and 8.72 ± 2.41 mg trolox equivalent (TE)/100 g, and 2,2’-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) radical scavenging activity was 22.89 ± 4.60 and 23.07 ± 4.49 mg TE/100 g for cooked-rice added to various mixed grains cooked in an electric cooker and pressure cooker, respectively. Phenol content and radical scavenging activity of cooked rice was in proportion to the amount of added grains, such as brown rice, colored rice, barley, soybean, and sorghum.
        78.
        2017.09 KCI 등재 서비스 종료(열람 제한)
        Germinated brown rice (GBR) has received considerable attention over the last decade as a means of enhancing the nutritional value and health-promoting functions of rice. The effect of germination on the physicochemical and textural properties of brown rice (BR) was investigated in different rice varieties (Samkwang, Misomi, Chindeul, and Hyeonpum). Cooking properties, such as water absorption, expanded volume, and soluble solids were significantly increased by germination in all rice varieties. Textural properties (hardness, toughness, adhesiveness, and stickiness) of cooked samples were determined using a texture analyzer. Hardness and toughness were decreased by germination, whereas stickiness and adhesiveness increased significantly. These results revealed that germination leads to improvements in the cooking and eating properties of BR. In Rapid Visco Analyzer (RVA), significant reductions were observed for peak viscosity, break down, set back, and final viscosity after germination. Although the amylose content of Misomi was slightly decreased by germination, that of other varieties increased significantly. Germination induced no noticeable change in the average chain length of amylopectin in Misomi, Chindeul and Hyeonpum, but led to a significant increase in Samkwang.
        79.
        2017.06 KCI 등재 서비스 종료(열람 제한)
        This study was carried out to compare the cooking and antioxidant characteristics of rice containing varying amounts of glutinous rice and cooked by two methods. Rice containing glutinous rice was cooked by general and high-pressure cooking methods with and without fermented alcohol. Pasting characteristics of cooked rice were decreased with increasing amounts of glutinous rice. The water binding capacity and swelling power were significantly decreased with increasing amounts of glutinous rice; however, water solubility indices were significantly increased. Palatability characteristics of cooked rice containing glutinous rice were similar to those of cooked rice without glutinous rice. Total polyphenol contents of cooked rice containing glutinous rice and fermented alcohol were quite different, but this difference was not significant. Total flavonoid contents were increased with increasing amounts of glutinous rice. Total flavonoid content by general cooking method for rice containing 20% glutinous rice and fermented alcohol was 23.20 ± 0.61 μg CE/g. DPPH radical-scavenging activities for samples with and without glutinous rice were 2.97–5.19 and 3.19–5.45 mg TE/100 g, respectively. ABTS radical-scavenging activity by high-pressure cooking method for rice containing 20% glutinous rice and fermented alcohol was 19.48 ± 0.63 mg TE/100 g. In this study, cooking and antioxidant characteristics of cooked rice containing glutinous rice generated data useful for manufacturing processed products.
        80.
        2016.09 KCI 등재 서비스 종료(열람 제한)
        The objective of this study was to evaluate the mechanical quality of cultivars that could potentially be used to processed cooked rice. Proximate composition, amylose content, cooking quality, and the Toyo value, were higher in Jungsaenggold than in the other cultivars. The results showed that the crude protein contents of the rice cultivars were between 4.60 and 6.59%. The amylose content was the highest in the Haedam cultivar (21.36%), but was the lowest in the Jungsaenggold cultivar (17.11%). Cooking quality was the highest in the Haiami and Jungsaenggold cultivar. Texture analyzer test showed that Ilpum had the lowest hardness and highest stickiness. Significant differences in the palatability characteristics (Toyo results for glossiness quality) of the rice flour were recorded using a Toyo Meter Analyzer. Ilpum, Samkwang, Haiami and Jungsaenggold had low amylose contents and the highest Toyo values. Thus, the results of this study suggested that Jungsaenggold can be effectively used to produce processed cooked rice.
        1 2 3 4 5