• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.2
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• pp.498-508
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• 2019

This is a comparative descriptive research conducted to compare work obstacles and safety culture perceptions of elderly welfare facility employees in Korea and Japan. The number of subjects are total 680 including 460 Japanese employees, working at elderly welfare facility in city 'N', and 220 Korean employees in city 'A' and 'S' of province 'K'. This study had been conducted from April 1, 2018 to August 30, 2018 and the data was analyzed by x2-test, t-test, ANOVA. As a result, work obstacles were korea and japan, there were no statistically significant differences between two groups. In the safety culture perceptions, employees of elderly welfare facility in Korea showed significantly higher level of safety culture perception than employees of that in Japan. furthermore, it is revealed in both countries that the less work obstacles they have, the higher safety culture perceptions they get. And it is a work obstacles that affects safety culture perceptions. Lastly, it is expected that the result of this study can be used as basic data for the improvement of working environment and for the strategy development in human resource management to enhance the safety culture perceptions and to reduce work obstacles.

• Korean Journal of Heritage: History & Science
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• v.46 no.1
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• pp.4-31
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• 2013

본고는 중세도시연구의 관점에서 도성 헤이안쿄(平安京)가 중세 교토(京都)로 변화하는 계기와 그 의미, 그것이 새로운 무가(武家) 정권도시(政權都市)에 어떤 영향을 미쳤는지에 대하여 논하였다. 율령제 마지막 도성인 헤이안쿄는 천황을 절대적 정점으로 한 중앙집권이 동심원구조로 구현된 '왕성(王城)의 땅'이었으나, 10세기 후반 이후 도성의 구심점이었던 내리(內裏)가 헤이안큐(平安宮) 밖으로 나오는 등의 변화가 시작되었고, 도성의 이념과 틀이 급속하게 해체 변용되었다. 또 고대왕권을 대신하여 새로운 형태로 왕권과 여러 권력을 담당한 원(院)과 롱관가(瀧關家), 대두하는 무가권력 등이 그 본거지에 권력의 개성과 시대성을 반영한 새로운 경관과 공간원리를 생성하였다. 그것은 다음과 같은 공통점을 갖는다. (1) 큰 정토정원을 갖는 御堂(사찰)과 세트를 이룬 御所(천황의 거소). (2)황통(천황가 내의 계통)과 가족의 상징으로서 조상을 모신 분묘를 중심으로 한 도시형성. (3) 내리를 기점으로 남북으로 주축을 갖는 고대도성과 달리, 어당과 어소가 동서로 배열된 동서가로를 주축으로 한 도시계획. (4) 수도와 외부를 잇는 교통의 결절점에 입지하였고, 특히 하천변을 향해 적극적으로 확장된 도시. 일본 중세는 무가정권의 시대를 맞이하여 도고쿠(東國) 초기 무가정권의 본거지 히라이즈미(平泉)와 최초의 막부가 열린 가마쿠라(鎌倉)가 모델로 한 것은 '도성 헤이안큐'가 아니라 헤이안큐 수도 밖 신도시의 경관과 공간원리였다. 특히 히라이즈미와 가마쿠라 등이 가정기관(家政機關)과 조상의 묘를 중심으로 한 '가족 원리'에 따른 정권도시를 적극적으로 수용한 것은 단순한 도시의 모방이 아니라 주종관계를 축으로 의제적인 '집(家) 원리'로 권력이 형성된 무가에는 더욱 어울리는 논리이며, 또 고대와는 다른 새로운 시대의 논리였기 때문이다. 그 한편으로 무가의 대들보로서 무사들에 의해 추대된 초기 무가정권은 도시의 논리와 경관을 도입하였을 뿐 아니라 그들과 공통의 가치관을 표현하는 것도 중요한 요소였다. 그것이 최신의 도시를 모방한 어당과, 그것과는 대조적인 도고쿠 무가의 전통적인 어소의 병립이라는 종교공간과 정치 일상공간에서의 권위표상의 의식적인 분리에 의해 표현되었다. 히라이즈미와 가마쿠라에서는 유통, 상공업 등의 도시기능과 도시적인 경관이 정비되기까지 약 50년의 시간이 경과할 필요가 있었다. 12세기 일본의 무가정권은 스스로의 거점으로서 도시를 기획, 형성하는 의식과 실현하는 능력을 얼마나 가지고 있었는가 검토가 필요하다. 명확한 동아시아모델의 도성을 실현함으로써 왕권의 존재를 드러낸 고대 율령정권과의 차이점은 매우 크다. 이후 무가가 권력의 의도를 도시구조로서 명확하게 드러낸 것은 15세기 후반의 전국시대 다이묘(大名)의 죠카마치(城下町)로부터이다. 특히 16세기 후반부터 천하통일을 실현한 오다 노부나가, 도요토미 히데요시의 연합정권에서는 구체적인 성(城)과, 그 성을 중심으로 한 계층성을 명시한 죠카마치의 공간설계가 있었다. 여기서는 다시금 '도시의 경관'이 명확한 권력의 상징으로서 기능하게 된 것이다.

• Economic and Environmental Geology
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• v.54 no.1
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• pp.151-160
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• 2021

2:1 clay minerals such as smectite incorporating ammonium were extracted to investigate the ammonium behavior and nitrogen isotope characteristics for two different sediment cores which were collected from shimmering sites on seafloor of the Wakamiko crater, southwestern Japan. Inorganic nitrogen contents in clay fraction were estimated by calibration curve based on consistently decreasing carbon and nitrogen ratio during the treatment to decompose organic materials, after removing inorganic carbon. The results show that the proportions of inorganic nitrogen for total nitrogen in clay fraction of SWS site(Core#1094MR: av. 18.2%) are higher than those in SES site(Core#1093MG: av. 11.5%). Relatively good crystallinity of the former suggests that exchangeable ammonium was transformed to non-exchangeable ammonium during more evolving diagenetic process. Nitrogen isotope variance of clay fraction(SES site: Core#1093MG: -4.4 ~ +0.2 ‰, av. -2.4 ‰; SWS site: Core#1094MR: -0.7 ~ +3.0 ‰, av. +1.5 ‰) during sequential decomposition of exchangeable ammonium suggests that heat flow derived from deep magma led to nitrogen isotope fractionation between dissolved ammonium and ammonia in the fluids involved in the formation of 2:1 clay mineral incorporating ammonium with local temperature variation.

• Journal of the Korean Geotechnical Society
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• v.24 no.12
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• pp.65-73
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• 2008

In the current practice for slope stability problem in Japan, the shear strength, $\tau$, mobilized along the failure surface is usually estimated based on an empirical approximation in which the cohesion, c, is assumed to be equal to the soil thickness above the supposed slip surface, d(m). This approximation is advantageous in that the result of stability analysis is not influenced by the designers in charge. However, since the methodology has little theoretical background, the cohesion may often be grossly overestimated, and conversely the angle of shear resistance, $\phi$, is significantly underestimated, when the soil thickness above the supposed slip surface is quite large. In this paper, a case record of natural slope failure that took place in Hyogo Prefecture in 2007, is described in detail for the case in which the shear strength along the collapsed surface was carefully examined in a series of direct shear box (DSB) tests by considering the effects of in-situ shear stress along the slip surface. It is demonstrated that the factor of safety agrees with that of in-situ conditions when the shear strength from this kind of DSB test was employed for the back-analysis of the slope failure.

• Journal of Practical Agriculture & Fisheries Research
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• v.21 no.2
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• pp.15-25
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• 2019

The effect of blueberries on the quality characteristics of strawberry jam substituted with 50% sugar, glucose syrup 10% was investigated. Strawberry jams with 5, 10 and 20% blueberries in place of strawberry were prepared and evaluated for moisture content, reducing sugar, total acidity, pH, color, total sugar (°Brix), pectin content, anthocyanin content, DPPH radical scavenging activity, texture analysis and sensory characteristics. As the amount of blueberries increased, total acidity, °Brix , reducing sugar content and anthocyanin content of jams increased, while pH decreased, moisture content has changed little. The DPPH radical scavenging activities of the 80% methanol extract from jams were 75.33%, 85.75%, 91.23% and 92.73% at a concentration of 8 mg/mL. Radical scavenging activity increased with the added concentration of blueberries. The lightness decreased with addition of blueberries, but the redness and yellowness increased. The sensory scores for jams increased with the increase of blueberry content; however, strawberry jams with 10% blueberries showed the best scores.

• Korean Journal of Soil Science and Fertilizer
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• v.25 no.4
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• pp.325-333
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• 1992

An investigation was carried out to find out the effects of long-term application (14 and 28 years) of rice straw, compost and wheat straw on changes in soil chemical and physical properities, aspests of releasing potential nitrogen and nitrogen uptake by rice and maize from fine textured paddy soils with double cropping system in warm temperate area. The result obtained were summarized as follows : 1. The long-term application of organic matters improved plow layer and soil physical properties : bulk density and solid phase were decreased, while porosity and gaseous phase were decreased. 2. Average increment of total carbon per year was 0.0371% and 0.0407% for rice straw and compost, respectively, from 1 through 14 years ; it was 0.0007% and 0.0014% for the rice straw and compost, respectively, from 15 years through 28 years. The average increment of total notrogen per year was 0.0025% and 0.038% for the rice straw and compost, respectively, from 1 through 14 years ; 0.0014% and 0.0024% for the same treatments from 15 through 28 years. 3. $NH_4-N$ and amide-N were high in the soils with wheat straw application for 28 years ; the amino sugar-N in the soils with compost application for 28 years ; amino acid -N in the soils with rice straw application for 14 and 28 years ; and unidentified-N, in the control. 4. The released amount of available nitrogen with the submerged condition was higher at $30^{\circ}C$ than at $25^{\circ}C$ during the incubation. The amount of released available nitrogen at the field was aproximately same as that of $25^{\circ}C$ incubation. However, the released amounts from the incubation and the field were always lower than those extracted with reagents. 5. The amount of nitrogen uptake by rice and maize was highly correlated with available nitrogen extracted with phosphate buffer(pH 7.0). 6. The ratio of yield increase(milled rice) was 17, 12 and 7%, respectively, by application of rice straw, compost and wheat straw for 28 years, and 11% by application of rice straw for 14 years.

• Journal of Sasang Constitutional Medicine
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• v.9 no.1
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• pp.339-352
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• 1997

The oriental medicine based on the traditional chinese medicine has developed according to the historical and racial character respectively in China, Korea and Japan etcs. Particularly, the distinctive feature of Korea & Japan is characterized by the development of constitutional medicine compared with chinese medicine; Sasang Medicine of Korea and Ikkando Medicine of Japan. The constitutional medicines were so far developed by many clinical doctors, and in recent years much interest has centered on the application of these medicines in regarding originality, easiness and effectiveness etcs in treatment. Thus far only few attempts have been made at Ikkando medicine in Korea, what seems to be lacking, however, is practical application in clinic. Thus authors intend to help the clinical application by introducing Ikkando medicine to Korea oriental medicine through this paper. The Ikkando medicine was established by Dohaku Mori(1869~1931) and was known through the "Kampo Ikkando Medincine" which was published by his disciple, Kaku Yakazu(1893~1966), classified human beings into three types; type of blood stasis, type of stroke and type of allergy. The type of blood stasis may be responsible for factors which have occurred by a state of insufficient bleed circulation and blood stasis causing lesione of endothelial cells, and Tongdosan is mainly administrated. The predisposing factor of stroke's type is known as the excessive diet, and the prevalence of cerebrovascular accident is probably higher. In this type, it is likely that patients are prevented and cured with Bangpungtongsunsan. Allergy's type have three distinct types of childhood, adolescence and adult as to the age. Allergy's type of childhood predisposes patients such as these to upper respiratory infection and tuberculosis etcs, and Sihocheonggansan is frequently administrated. Allergy's type of adolescence has a tendency to rhinitis and infection of face legion etcs, and Heunggyeyeoungyotang is mainly administrated. Allergy's type of adult is subject to urogenital infection, and is more commonly treated with Yongdamsagantang. Judging from the above, we can say with fair certainty that Ikkando Medicine has considerable validity to clinical practice, though it should not be pushed too far.

• Journal of the Korean Society of Food Science and Nutrition
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• v.41 no.11
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• pp.1508-1514
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• 2012

The purpose of this study was to evaluate the antioxidant contents and antioxidant activities of solvent fractions from methanolic extract of sericea lespedeza. To determine the antioxidant compounds in solvent fractions from methanolic extract, total polyphenolic, flavonoid, tannin, and proanthocyanidin contents were measured by spectrophotometric methods. Solvent fractions were evaluated for antioxidative capacity according to DPPH and ABTS radical scavenging activities. Total polyphenolic contents were 12.44, 3.61, 6.39, 27.11, 20.00, and 9.32 mg gallic acid equivalent (GAE)/g extract residue (ER), respectively. Total flavonoid contents were 2.94, 9.92, 7.77, 9.27, 5.11, and 2.66 mg catechin equivalent (CE)/g ER, respectively. Total tannin contents were 8.75, 10.04, 7.42, 17.32, 11.65, and 7.61 mg tannic acid equivalent (TAE)/g ER, respectively. Total proanthocyanidin contents were 346.09, 63.50, 103.76, 288.62, 231.99, and $358.48{\mu}g$ CE/g ER, respectively. DPPH radical scavenging activities of solvent fractions from methanolic extract of sericea lespedeza were 20.62, 5.16, 9.29, 20.80, 20.00 and 20.79 mg Trolox equivalent (TE)/g ER, and ABTS radical scavenging activities were 33.86, 9.24, 17.36, 33.76, 33.49, and 33.86 mg TE/g ER, respectively. SOD-like activities were 4.12, 0.61, 2.01, 9.89, 13.47, and 11.82 units/mL, and ${\alpha}$-glucosidase inhibition activities were 93.85 and 61.64% at concentrations of 50 and $25{\mu}g/mL$ in the water fraction, respectively. The results of this study show that notable antioxidant activities in sericea lespedeza have significant health benefits.

• Journal of Bio-Environment Control
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• v.23 no.1
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• pp.19-25
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• 2014

In this study, we analyzed the growth characteristics of red lettuce under Light-emitting diode (LED) light environment as well as the change of vitamin C and anthocyanins of lettuce. We made five monochromatic light treatments (red 647 nm, 622 nm, blue 463 nm, 450 nm, White), six mixed red (R) and blue (B) light treatments (R : B = 9 : 1, 8 : 2, 7 : 3, 6 : 4, 5 : 5) and red + white, and three light treatments made according to photoperiod of LED with lighting sources ratio of red : blue (R : B = 8 : 2(18/06 h, 15/09 h, 12/12 h)). It was composed of totally 14 control beds. As a result, the red lettuce the most developed leaf height, leaf numbers and fresh weight under red single light, root length and leaf developed when grown under blue single light. Therefore, red light were related to above part of the lettuce, blue light were related to the growth of the underground part of lettuce. Case of the mixed light, leaf height, leaf numbers, fresh/dry weight of above and underground part were highest red + white light and root length and chlorophyll content were highest under red 7 : 3 blue light. Result of growing investigation by photoperiod, the red lettuce were considered to be most effective in 15/09 h (on/off). The content of anthocyanins; the single light source, mixed light and light irradiation period were highest under blue light (463 nm), red 7 : 3 blue and 18/06 h (on/off) light irradiation, respectively. The vitamin C showed the lowest content of $1.26mg{\cdot}L^{-1}$ under the white light, but showed the greatest content of $3.02mg{\cdot}L^{-1}$ for the control group.

• Tuberculosis and Respiratory Diseases
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• v.65 no.6
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• pp.476-486
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• 2008

Background: TRAIL (TNF-related apoptosis inducing ligand) is a newly identified member of the TNF gene family which appears to have tumor-selective cytotoxicity due to the distinct decoy receptor system. TRAIL has direct access to caspase machinery and induces apoptosis regardless of p53 phenotype. Therefore, TRAIL has a therapeutic potential in lung cancer which frequently harbors p53 mutation in more than 50% of cases. However, it was shown that TRAIL also could activates $NF-{\kappa}B$ in some cell lines which might inhibit TRAIL-induced apoptosis. This study was designed to investigate whether TRAIL can activate $NF-{\kappa}B$ in lung cancer cell lines relatively resistant to TRAIL-induced apoptosis and inhibition of $NF-{\kappa}B$ activation using proteasome inhibitor MG132 which blocks $I{\kappa}B{\alpha}$ degradation can sensitize lung cancer cells to TRAIL-induced apoptosis. Methods: A549 (wt p53) and NCI-H1299 (null p53) lung cancer cells were used and cell viability test was done by MTT assay. Apoptosis was confirmed with Annexin V assay followed by FACS analysis. To study $NF-{\kappa}B$-dependent transcriptional activation, a luciferase reporter gene assay was used after making A549 and NCI-H1299 cells stably transfected with IgG ${\kappa}-NF-{\kappa}B$ luciferase construct. To investigate DNA binding of $NF-{\kappa}B$ activated by TRAIL, electromobility shift assay was used and supershift assay was done using anti-p65 antibody. Western blot was done for the study of $I{\kappa}B{\alpha}$ degradation. Results: A549 and NCI-H1299 cells were relatively resistant to TRAIL-induced apoptosis showing only 20~30% cell death even at the concentration 100 ng/ml, but MG132 ($3{\mu}M$) pre-treatment 1 hour prior to TRAIL addition greatly increased cell death more than 80%. Luciferase assay showed TRAIL-induced $NF-{\kappa}B$ transcriptional activity in both cell lines. Electromobility shift assay demonstrated DNA binding complex of $NF-{\kappa}B$ activated by TRAIL and supershift with p65 antibody. $I{\kappa}B{\alpha}$ degradation was proven by western blot. MG132 completely blocked both TRAIL-induced $NF-{\kappa}B$ dependent luciferase activity and DNA binding of $NF-{\kappa}B$. Conclusion: This results suggest that inhibition of $NF-{\kappa}B$ can be a potentially useful strategy to enhance TRAIL-induced tumor cell killing in lung cancer.