• Title/Summary/Keyword: Beginning time of life

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A Study on Safety Education in Life Science Inquiry Activity for Students in Science High School, Middle and High Schools (과학고등학교 및 중등학교 학생들의 생명 과학 탐구활동 시 안전교육에 대한 연구)

  • Cha, Hyeon-Jeong;Kim, Dae-Jae
    • Korean Educational Research Journal
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    • v.38 no.3
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    • pp.167-188
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    • 2018
  • The purpose of this study is to suggest safety education on life science inquiry activity, which subjects on the exploration and autonomous research to the relevant topics, mainly done by the science high school students. Investigation was made on subjects of research activity proposed from Life science and autonomous research from science high school students by examine thoroughly 2009 revised education curriculum. To prevent school laboratory accidents, education of basic safety regulations and general precautions should be repeatedly notified by clear statements and expression to each topic. Expressing the safety factors considering the themes of autonomous inquiry and activities presented in the course of education should be done, so that students should not experience laboratory accidents by reason of ignorance. From the beginning of organization to performing research, safety rules about disposing chemicals and tools wastes occurring during research should be noticed and expressed in precautions following waste disposal system should be adopted. It is necessary to level up the accessibility of information about the laboratory safety rules to confirm to the every student, and also ensure the takeover of the clean-up and use of utilities at the time of search end in order to prevent the incidence of laboratory accidents during the thorough stages of biological inquiry activities.

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Approaching Green Buildings Using Eco-Efficient Construction Materials: A Review of the state-of-the-art

  • Aghdam, Karim Aligholizadeh;Rad, Alireza Foroughi;Shakeri, Hamed;Sardroud, Javad Majrouhi
    • Journal of Construction Engineering and Project Management
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    • v.8 no.3
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    • pp.1-23
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    • 2018
  • Since the protection the of human being from natural disaster and atmospheric factors have become an essential requirement, some attempts have been taken place to provide shelter and create a safe environment to a more comfortable life with welfare. For this purpose, using existing resources in nature and exploiting them in a different manner have been taken into account. Initially, the performed exploitations for construction had the least damage to the environment, but over time and as a result of population growth, aggressive exploitation of nature has led to destroying effects on the environment and resulted in consequences such as pollution and environmental destruction. Thus, the construction industry has been identified as the top pollutant factors of the environment. Among various construction factors, the building materials used in this industry are considered as the most important effective factors on the environment, as they have direct influences on the environment from the beginning of construction of the final steps. This research focuses on the review of the most of the existing green materials definitions and various approaches towards using eco-efficient construction materials. It presents and discusses possible ways of reducing the destructive effects on the environment by selecting and using green materials, review current literature and highlight the necessity of applying such materials in future constructions in all communities. This paper provides a base for this purpose that sustainable development communities and environment is realized by elimination of environmental pollution and approaching the criteria of green building by using sustainable materials.

The Process of Development and Architectural Characteristics of Secular Stained Glass in the 20th century (20세기 비종교적 스테인드글라스의 전개과정과 건축적 특성)

  • Kim, Jung-Shin
    • Korean Institute of Interior Design Journal
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    • v.17 no.1
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    • pp.3-10
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    • 2008
  • This study is concerned with the process of development and architectural characteristics of secular stained glass in the 20th century. Stained glass had been architectural art from the origin. But it had declined since the Renaissance era, and began to revive in the early 20th century. Stained glass work is very flourish in Korea today, but it is still treated as simple decoration or 2-dimensional mosaic. Architect and interior designer even have little understanding of architectural character of stained glass. In order to recover the architectural nature of stained glass, I have considered the process of development of secular stained glass in the 20th century, and analysed the works of Frank Lloyd Wright, the postwar German artists, Georg Meistermann, Ludwig Schaffrath, Johannes Schreiter, and English artist, Brian Clarke. Major findings of the study are as followings : First, stained glass has come to life again from the secular glass painting decoration in the end of the 19th century, through Art-Nouveau, De Stil, Bauhaus in the beginning of the 20th century, and L'Art $Sacr\acute{e}$. Second, Frank Lloyd Wright, the postwar German artists and Brian Clarke have established the architectural concept and potentiality of the modem stained glass in the secular field. Third, They have done by coming back to the basic creative method by traditional lead-came technique in spite of the development of various materials and techniques. Forth, stained glass fundamentally has architectural characteristics as the characters of Space, Time, Place, Context, and they have showed the new possibility of stained glass by recovery of these characters.

Destruction and Preservation of Architectural Monuments -in the Context of World War I France and Germany- (기념비 건축물의 파괴와 보존의 의지에 관한 연구 -제1차 세계 대전 전후 프랑스와 독일의 사례를 중심으로-)

  • Kim, Young-Cheol
    • Journal of architectural history
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    • v.31 no.5
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    • pp.57-64
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    • 2022
  • Architectural Monuments have to overcome the challenge of time due to physical properties. The fundamental issue must be grounded in an understanding of history and art to overcome this challenge and make themsustainable. Many efforts to preserve the monuments through the 19th century and at the beginning of the 20th century to record them in scientific form were successful. To be aware of the meaning of the art and not to be 'barbare' anymore was behind the promotion of these activities. Above all, the 19th-century French architect Viollet-le-Duc contrasted the concept of barbarism with the concept of art and tried to redefine architecture as art. The ritual to escape 'barbare' played an important role in the end. This consciousness was also at work in the propaganda for the preservation of medieval architectural monuments in France, led by intellectuals such as Rodin. Also, the concept of 'barbare' served as an important yardstick whenever the cause of their loss was questioned while important monuments were destroyed in the First World War. From the viewpoint of Germany, Dehio was the pioneer of the preservation movement and documentation of monuments. The principle he advocated was preservation, not restoration. The historian Pevsner, who moved to England, also surveyed monuments in various parts of England and left them in the same format as Dehio. These facts show that architecture as art plays a fundamental role in the history of human life.

"Adam and Eve" - Soviet Plot and Parody of M.A. Bulgakov (『아담과 이브』: 소비에트 슈제트와 M.불가코프의 패러디)

  • Kang, Su Kyung;Yang, min jong
    • Cross-Cultural Studies
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    • v.22
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    • pp.7-27
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    • 2011
  • This article is devoted to little-studied play of M.A. Bulgakov "Adam and Eve". By the end of 1920's - the beginning of 1930's soviet society is differentiated again, its construction is rebuilded. In the new condition drama is needed as much as possible. Drama on the stage is ideal model for instruction of "Mass". Thereupon soviet society asked "New Hero", "New play", which can rebuild soviet citizen in the new construction of government. Thereby the play of M.A. Bulgakov "Adam and Eve" is created by order of soviet society. In this play typical soviet people are represented: Adam Krasovsky(engineer), Daragan(pilot-terminator), Ponchik-Nepobeda(writer), Zahar Markizov(proletarian-baker). They are different from each other by their occupation and formation, but they have same consciousness and they think identically. Bulgakov makes stand such problems: impersonality and unfreedom of human being in the government of communism. Bulgakov, using Parody, doubt the possibility of realization of utopia of Soviet government. Bulgakov show to us that Adam Krasocsky is not real Adam-first human being. In the play we can see the real Adam is the scientist-intelligent Efrosimov. Bulgakov change the place of Ponchik with the place of Markizov. The idiot and the fool is recognized not Markisov-drinker, tyrant, but Ponchik-writer. After the disaster Markisov, reading a Bible, is changing and by the end of play he started writing his own novel. Indeed if Ponchik wrote hoked-up novel, Markisov writes a real own history. Request of Leningrad Theater for Bulgakov to write about the future war comes from the spirit of the time. But Bulgakov in this play "Adam and Eve" could insist that the "Life" is a supreme value.

Study of Artwork Expressed through Interpretation of Lines and Overlapping Effects (선의 해석과 중첩 효과로 표현된 작품연구)

  • Ah-Reum Han
    • Journal of Advanced Technology Convergence
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    • v.3 no.3
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    • pp.29-35
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    • 2024
  • When we look at the history of lines, we see that with the beginning of human civilization, lines were engraved on cave walls or rock surfaces for religious, shamanistic meanings, or to leave records. As time passed, characters were invented, which were used as a means of expression and recording, and had a significant impact on painting. In the East, according to the philosophy of 'Wu Wei Zi Ran (無爲自然)', artists borrowed from nature to express their intentions on the canvas with lines, and sometimes wrote their impressions on the canvas before or after painting. Lines were regarded not just as simple boundaries but as manifestations of the energy that evokes the vitality of the subject. Drawing a single line was considered the first act of life newly born in the cosmic space. The line itself implies the depth of space and elements of expression. Many artists have developed lines using contemporary senses and materials based on theories found in literature. This study aims to research the concept of lines and the linear characteristics of the East and West through recorded literature and data, and to study works using the overlapping nature of lines as a modern expression method.

Construction and Applications of the Virtual Automotive Plant for a Victual Manufacturing (가상생산기술 적용을 위한 자동차 가상플랜트 구축 및 활용)

  • No, Sang-Do;Lee, Gyo-Il;Son, Chang-Yeong;Han, Hyeong-Sang;Park, Yeong-Jin
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.25 no.10
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    • pp.1627-1635
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    • 2001
  • Virtual manufacturing is a technology facilitating effective development and agile manufacturing of products via sophisticated computer models representing physical and logical schema and behavior of real manufacturing systems including manufacturing resources, environments, and products. For the successful application of this technology, a virtual plant as a well-designed and integrated environment is essential fur sharing information and engineering collaboration among diverse engineering activities. The systematic approaches and effective methods for construction and application of a virtual plant are proposed in this paper, such as a 3-D CAD modeling, cell and line simulations, databases and some information technologies. Measuring and 3-D CAD modeling technologies of many equipments, facilities and structures of the building are developed, and effective information management system managing CAD models, related files and data is implemented in WWW environments. Finally, precise simulations of unit cell lines and the whole plant are performed. For the beginning of implementing a Virtual Automotive Plant, the Virtual Plant fur the Body Shop of a Korean automotive company is constructed and implemented. We could obtain the benefit of savings in time and cost in many manufacturing preparation activities in the new car development processes.

The Palliative Radiotherapy in Bone Metastases (전이성 골종양의 고식적 방사선 치료)

  • Choi, Young-Min;Lee, Hyung-Sik;Hur, Won-Joo
    • Radiation Oncology Journal
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    • v.12 no.2
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    • pp.201-207
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    • 1994
  • To objectively compare the response of the palliative radiotherapy in bone metastatic patients which decreases pain and prevents pathologic fractures, we introduced and applied the RTOG pain and narcotic measure system. From Oct in 1991 to July in 1993, thirty-two patients with painful bone metastases, 17 of them were solitary lesions and others were multiple lesions, were treated with mainly 6 MV photon otherwise 15 MV photon. Radiation doses to bone metastatic sites ranged about from 2000 to 4600cGy. Responses of radiation therapy were compared with days of pre-RT, RT finish, 3, 6, 9 months after the start of RT and solitary versus multiple lesions and follow up scores according to the RTOG measure system. Survival analysis was done. Pain and narcotic score of the entire patients were 7.3, 7.8 at the pre-RT period and 2.6, 3.9 at the immediate or 2 weeks after RT, which was $64{\%},\;50{\%}$ decrement compared with the pre-RT score, Pain scores of 3, 6 and 9 months after the beginning of irradiation were 3.6, 3.7 and 3.3. The best response found in the breast and prostate primaries was $84\%,\;78\%$ decrement of pain score as compared with pre-RT score(statistically insignificant). Median survival was 5.5 months and mean survival was 5 months. We conclude that the RTOG pain and narcotic measure system is relatively effective scale in the comparison of before and after palliative irradiation to the painful bone metastatic sites but more detailed parameters will be required in the narcotic scoring system. More aggressive but less or similiar toxic radiotherapy is needed in the patients having relatively long life expected time.

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Shelf-life and Quality Characteristics of Potassium Sorbate-free Meat Products (솔빈산 칼륨이 첨가되지 않은 육제품의 저장 수명과 품질 특성)

  • 이근택;황보식;정구용
    • Food Science of Animal Resources
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    • v.18 no.2
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    • pp.107-114
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    • 1998
  • This study aimed for the examination of quality characteristics and safety of potassium sorbate-free meat products. Therefore, experiments were carried out on the frankfurter sausage and pressed ham, which were stored at 4 and 30$^{\circ}C$ for up to 40 days. The potassium sorbate concentrations of the frankfurter sausage and pressed ham obtained from local market ranged from 1.087 to 1.449g / kg, which were below the permitted value as prescribed in the Korean Hygienic Regulation. At the 0 day the total aerobic bacterial counts of frankfurter sausage and pressed ham were in the level of around 103.0 and 103.4 CFU / g, respectively. However, they were prominently increased after 20 days at 4$^{\circ}C$ and 10 days at 30$^{\circ}C$ to higher than 105 CFU / g. After 30 days the counts were increased to 106.5 and 107.2 CFU / g, respectively. The growth curve of lactic acid bacteria was shown to be similar with that of total bacteria. the counts of lactic acid bacteria of the products stored at 4$^{\circ}C$ were 101∼102 CFU / g lower than those stored at 30$^{\circ}C$. Coliform bacteria was not detected in both of the products stored at 4$^{\circ}C$ even after 40 days storage, but after 10 days at the 30$^{\circ}C$. No significant differences in the microbial counts examined in this study were observed between frankfurter sausage and pressed ham. The biochemical tests on the isolated colonies from Clostridein agar showed no presence of Clostridium botulinum and Clostridium perfringens in the meat products examined. The pH of frankfurter sausage and pressed ham at the beginning was about 6.6, which level was maintained relatively constant during the storage at 4$^{\circ}C$, but it was increased after decrease to about 5.5 during the storage at 30$^{\circ}C$. TBA value was increased slightly till 30 days, but after that time increased sharply. VBN value was increased slowly during the whole storage, but it was more than 30 mg% for the samples stored at 30$^{\circ}C$.

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A Case Report of Recurrent L858R Mutation Non-Small-Cell Lung Cancer with Brain Metastases Treated with Erlotinib and Traditional Korean Medicine After Failure with Gefitinib (Gefitinib 내성 후 Erlotinb과 한방 치료를 병행하여 호전된 뇌전이를 동반한 재발성 L858R 변이 비소세포폐암 환자 1례)

  • Yang, Jung-min;Jang, Kwon-jun;Hwang, Woo-seok
    • The Journal of Internal Korean Medicine
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    • v.43 no.5
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    • pp.838-853
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    • 2022
  • Objectives: The purpose of this study is to report the case of a patient with recurrent L858R mutation non-small-cell lung cancer with brain metastases treated with erlotinib and traditional Korean medicine after gefitinib failure. Methods: The patient was treated with erlotinib beginning in November 2021, and gamma knife surgery was performed on November 8, 2021. The dose of erlotinib was 150 mg/day every four weeks. At the same time, the patient was treated with traditional Korean medicine. Tumor size and cerebral edema were measured using computed tomography and magnetic resonance imaging, respectively. Adverse events were evaluated using the National Cancer Institute Common Terminology Criteria for Adverse Events, version 5.0. Results: After treatment with erlotinib and traditional Korean medicine for six months, the extent of the growing nodule in the right upper lobe decreased during the first three months and remained stable for the following three months. Peritumoral edema showed an increase three months after gamma knife surgery, but partial improvement of cerebral edema was confirmed with additional traditional Korean medicine six months after gamma knife surgery. The symptoms of discomfort and physical activity gradually improved. Conclusions: This case study suggests that the combination of EGFR-TKI and traditional Korean medicine may contribute to a reduction in tumor size and cerebral edema while improving quality of life.