The purpose of this research is to understand Ko Yu-seop’s perception of ‘contemporary emerging architecture’ in the West by investigating into his two early 1930s’ articles: ‘On Emerging Arts, Particularly the Cutting-edge Architecture’ (Jan. 1931) and ‘Russian Architecture’ (Dec. 1932). As a result of the investigation, it is argued that he attempted to systematically describe his contemporary architecture, from the concept of ‘modern’ to representative architectural theories, and his suggested reference list is considered meaningful since it illustrates one aspect of how modern architectural knowledge was transferred to Korea at that time. As his limitation, however, it should be pointed out that a significant part of his writing was a verbatim translation of the Japanese critic Takao Itagaki’s New Art Acquisition (1930). Nevertheless, the two articles give us a valuable understanding related to his socialist tendency, his preferred commune-type city-cum-architecture that reflects the ideology, etc. Hereafter, this understanding needs to be further discussed in both study areas of art history and architectural history in Korea.

본 논문에서는 반도체 패권의 변화에 관한 역사적 경로의 분석을 통해 동 산업생태계 변화를 예측하고자 한다. 특히 본고는 일본의 반도체 산 업 역사를 고찰하고, 현재의 일본 반도체 정책 및 전략을 분석하였다. 본 고에서는 반도체 패권의 변화에 대해 통상관계와 기술 생태계 변화 두 측면에서 역사적 흐름을 고찰하고, 일본 반도체 산업의 변화 및 역사적 경험을 미일 반도체 협정 이전과 1990년대 이후로 구분하여 분석하였다. 또한 일본 반도체 산업정책 및 전략을 내부 산업지원 정책과 클러스터 지역 정책 그리고 외부 칩4동맹 및 주변국과의 협력관계 구축 측면에서 분석하였다.

본 연구는 유통 중인 곡류 87건 및 그 가공식품 66건을 대상으로 발암물질인 무기비소의 오염도를 조사하였다. 높 은 분리능과 감도를 가진 HPLC-ICP/MS를 이용하여 무기 비소 As(III), As(V) 및 유기비소 MMA, DMA, AsB, AsC 를 분석했으며, ICP/MS로 총비소를 정량하였다. 모든 곡 류에서 무기비소가 검출되었으며, 곡류의 총비소는 약 70- 85%의 무기비소와 약 10-20%의 DMA로 구성되었다. 곡 류 분석 결과, 담수재배 종인 쌀과 흑미에서 높았고, 밭 재배 잡곡은 오염도가 낮았다. 쌀의 평균 무기비소 농도 는 쌀눈 0.160 mg/kg, 현미 0.135 mg/kg, 백미 0.083 mg/ kg으로 외피에 비소가 많은 것으로 조사되었다. 곡류 가 공식품은 원재료의 종류와 함량에 따라 무기비소 농도가 달랐으며, 현미와 쌀눈 가공 제품에서 검출량이 많았다. 모든 시료는 기준규격을 초과하지 않았지만, 섭취 빈도가 높으므로 식품 안전을 위해 지속적인 모니터링이 필요할 것으로 판단된다.

에너지 안보는 에너지의 안전한 관리, 자원의 안정적 수급, 기후변화에 대응한 지속가능성이라는 3개 핵심영역을 충족하여야 한다. 2000년대 이 후 에너지 위기와 미국의 셰일에너지 수출 급증에 의한 패권 변화는 에 너지 패권에 막대한 영향을 미치고 있다. 본 연구에서는 2000년대 중후 반 셰일혁명 초기, 그리고 2020년대의 에너지 패권 갈등에 관하여 삼자 간 게임이론의 관점에서 분석하였다. 특히 2020년대 시기는 코비드 판데 믹(COVID Pandemic) 그리고 러시아-우크라이나 전쟁이라는 외부효과 (externality)가 에너지 정치에 막대한 영향을 미친 시기이다. 항공, 교통 등 운송 및 수송에서의 에너지 사용이 큰 폭으로 줄어든 판테믹 시기, 극한의 갈등을 빚어왔던 에너지 수출국들은 역설적으로 OPEC+라는 합 의기구를 구성할 수 있었다. 하지만 전쟁 이후 러시아 제재를 위한 미국 및 이외 산유국의 증산 선택이 불가피하며, 이러한 러시아를 포함 삼자 의 증산 선택 결과 이익이 상쇄되어 에너지 갈등이 더욱 심화되고 있다.

Recently, consumers’ awareness of the importance of the intestinal action of lactic acid bacteria and intestinal microbes is increasing, as well as interest in yogurt. In this study, yogurt was prepared with three mixed strains (lactic acid bacteria combination, Lactobacillus acidophilus, Lactobacillus delbrueckii subsp., and Bulgaricus, Streptococcus thermophilussei, 1:1:1) by adding oats flour, and the quality characteristics of yogurt were investigated, while stored at a storage temperature of 4℃ for 12 days. According to the storage period, the control as wel as the oat yogurt showed slight decrease in pH, and no significant change in acidity. Sugar content slightly increased. and brightness decreased, in the control and the oat yogurt. Visible cell numbers increased during storage, and decreased on the 12th day. Viscosity in the oat yogurt was 7,580 cP, which was approximately eight times higher than that of the control group, and decreased gradually according to the storage period. Antioxidant activity (DPPH) was approximately two times higher in the oat-added yogurt, and slightly increased with the storage period, decreased on the 12th day of storage, and β-glucan was detected only in oat-added yogurt.

We report the synthesis and gas sensing properties of bare and ZnO decorated TeO2 nanowires (NWs). A catalyst assisted-vapor-liquid-solid (VLS) growth method was used to synthesize TeO2 NWs and ZnO decoration was performed using an Au-catalyst assisted-VLS growth method followed by a subsequent heat treatment. Structural and morphological analyses using X-ray diffraction (XRD) and scanning/transmission electron microscopies, respectively, demonstrated the formation of bare and ZnO decorated TeO2 NWs with desired phase and morphology. NO2 gas sensing studies were performed at different temperatures ranging from 50 to 400 oC towards 50 ppm NO2 gas. The results obtained showed that both sensors had their best optimal sensing temperature at 350 oC, while ZnO decorated TeO2 NWs sensor showed much better sensitivity towards NO2 relative to a bare TeO2 NWs gas sensor. The reason for the enhanced sensing performance of the ZnO decorated TeO2 NWs sensor was attributed to the formation of ZnO (n)/ TeO2 (p) heterojunctions and the high intrinsic gas sensing properties of ZnO.

Sarcoma is rare malignant tumors that develop from mesenchymal cells. Metastasis to the oral cavity is a rare occurrence. Undifferentiated Pleomorphic sarcoma(UPS), formerly known as Malignant fibrous histiocytoma(MFH), is rare spindle cell neoplasm that can have poorly prognosis with metastasis and local recurrence. This report describes a case of a 77-year-old man who was diagnosed with Undifferentiated Pleomorphic Sarcoma of the chest wall and underwent adjuvant radiation therapy after surgical resection. Although there was success of wide excision, two years later, he presented with metastasis to the several organs including tongue. We retrospectively analyzed results of Next Generation Sequencing(NGS), and we figured out RB1 gene mutation. Until now targeted therapy of RB1 gene mutation is not established. Surgeon needs to consider metastatic tumors through identifying patients’ chief complaints and past medical & dental history. We need to research through NGS, and take a step closer to find targeted therapy for tumors.