• Title/Summary/Keyword: Impetus

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The Study for Problems of course evaluations in mathematics education (수학강좌의 강의평가에 대한 문제점 연구)

  • Moon, Kwon-Bae
    • Communications of Mathematical Education
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    • v.24 no.4
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    • pp.909-922
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    • 2010
  • This paper deals with disparities in course evaluation between general and major courses of mathematics education. We provide concrete evidences which verify the mismanagement of the evaluation system and can be an impetus to a more rational one. We indicate the direction to which professors of mathematics education should head. Also those statistics obtained from the author's teaching of mathematics education and related subjects for twelve years are provided for the fact-finding of and improving the erroneous evaluation system.

A Study on the Earth-Volume Determination in Road Design by D.T.M. (수치지형 모델을 이용한 도로의 토공양산정에 관한 연구)

  • 조영호
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.7 no.2
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    • pp.7-19
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    • 1989
  • The developments in remote-sensing, digital mapping, and automation of land information system have provided the impetus for the increasing use of Digital Terrain Models in engineering planing and design. In this paper, an evaluation is made on tile method of accurate earth-volume determination in computerized road design using by Digital Terrain Models. The result of numerical test shows that the $BL_{in}$-1 Model is the most efficient model in Earth-volume determination of road design.

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Titanium Dioxide Nanomaterials and its Derivatives in the Remediation of Water: Past, Present and Future

  • Tiwari, Alka;Shukla, Alok;Tiwari, Diwakar;Choi, Suk Soon;Shin, Hyun-Gon;Lee, Seung-Mok
    • Applied Chemistry for Engineering
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    • v.30 no.3
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    • pp.261-279
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    • 2019
  • The aim of this review article is to summarize the role of titanium oxide ($TiO_2$) nanomaterials in the remediation of the aquatic environment contaminated with various emerging pollutants. The advanced oxidation process led by the semiconductor $TiO_2$ is an impetus in the remediation technology. Therefore, a vast number of literature works are available in this area. Further, the role of modified $TiO_2$ or thin film materials were discussed in the review. Also, the Localized Surface Plasmon Resonance (LSPR) effect of using noble metaldoped $TiO_2$ played an interesting role in the remediation process.

Travel and Social Changes in Modern Jiangnan

  • Zhou, Ye
    • Journal of East-Asian Urban History
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    • v.2 no.2
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    • pp.309-339
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    • 2020
  • Obviously the speed of dissemination of new, modern ideas in Jiangnan was closely related to the development of transportation. Looking back at the history, the backwardness of transportation in the early modern Jiangnan restrict the dissemination of new ideas in this region and then the situation changed a lot since the 1890s, when the spatial distance between Shanghai and Jiangnan was remarkably shortened, the dissemination of new ideas was accelerated, and the new ideas in return significantly influenced the Jiangnan society. It was the constantly improved transportation that facilitated the diversification of channels disseminating information and made the dissemination itself faster. As a consequence, the new ideas, knowledge, and things were rapidly disseminated and popularized in Jiangnan, thereby giving impetus to the social changes in this region.

Role of Nuclear Factor Erythroid 2-Related Factor 2 in Chronic Obstructive Pulmonary Disease

  • Ban, Woo Ho;Rhee, Chin Kook
    • Tuberculosis and Respiratory Diseases
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    • v.85 no.3
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    • pp.221-226
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    • 2022
  • Chronic obstructive pulmonary disease (COPD) is characterized by airflow limitation due to chronic airway inflammation and destruction of the alveolar structure from persistent exposure to oxidative stress. The body has various antioxidant mechanisms for efficiently coping with such oxidative stress. The nuclear factor erythroid 2-related factor 2 (Nrf2)-antioxidant response element (ARE) is a representative system. Dysregulation of the Nrf2-ARE pathway is responsible for the development and promotion of COPD. Furthermore, COPD severity is also closely related to this pathway. There has been a clinical impetus to use Nrf2 for diagnostic and therapeutic purposes. Therefore, in this work, we systematically reviewed the clinical significance of Nrf2 in COPD patients, and discuss the value of Nrf2 as a potential COPD biomarker.

STRATEGIC FRAMEWORK FOR SINGAPORE CONTRACTORS FORMING JOINT VENTURES IN DEVELOPING COUNTRIES: A PRELIMINARY STUDY

  • Y.T. Wong;David A.S. Chew;Charles Y.J. Cheah
    • International conference on construction engineering and project management
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    • 2005.10a
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    • pp.869-874
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    • 2005
  • Given the intense competition and slowdown in domestic demands, there is greater pressure on Singapore contractors to seek overseas markets for revenue and growth. This impetus, coupled with emerging economic reforms in the regional developing countries, has invariably created numerous opportunities for Singapore contractors. However, mixed results were reported on their overseas performance so far. Consequently, this paper aims to formulate a framework that would assist Singapore contractors to successfully export their services into developing countries. The proposed framework comprises ten critical success factors (CSFs), which are identified from in-depth interviews with eight Singapore contractors. These ten success factors are subsequently classified under three different stages, namely initial, entry and operational stages. Preliminary results show that Singapore contractors are most focused on the entry stage, with the highest number of CSFs.

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ROOM TEMPERATURE FERROMAGNETISM IN TRANSITION METAL DOPED OXIDE SEMICONDUCTORS, $TiO_2$ and ZnO

  • Y. H. Jeong;S-J. Han;Park, J.H.
    • Proceedings of the Korean Magnestics Society Conference
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    • 2003.06a
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    • pp.17-17
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    • 2003
  • Semiconductors with ferromagnetism at room temperature has been actively searched for in recent years; a prospect of devices using both charge and spin continuously gives impetus to the activities. Transition metal doped oxide materials have been of particular interest. Co substituted ZnO [1] and TiO$_2$ [2] thin films, for example, were reported to show ferromagnetic properties at room temperature. However, various studies do not seem to converge on a definite picture [3,4,5]. The issue is rather fundamental: whether a system shows ferromagnetic properties at all, and in case it does, whether the system possesses a close coupling between magnetism and transport properties. In this talk, we shall assess the current status of transition metal doped oxide materials as room temperature ferromagnetic semiconductors.

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"In the Gothic Mirror": Reflections of Female Monstrosity in "The Long Arm"

  • Chung, Hyeyurn
    • American Studies
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    • v.42 no.2
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    • pp.57-78
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    • 2019
  • The story of Lizzie Borden has served as a creative impetus in the American imagination; following the hundred years after the Borden murders, a remarkable body of creative work has been produced. Ann Schofield asserts that the Borden story has become an "ur-text for the contemplation of power, of patriarchy, [and] of sexuality" (92). In reading Mary Wilkins Freeman's "The Long Arm" (1895), this essay re-considers Schofield's claim that the Borden story and its subsequent renditions enable a revisionary take on female subjectivity and resistance to patriarchal order. More specifically, this essay examines how Freeman's text (one of the first to fictionalize the saga of Lizzie Borden) reflects back the gendered subjectivity in the in the gothic mirror for us to consider whether that reflection began as an image of subjection or that of autonomy.

Pre-service Science Teachers' Epistemological Beliefs about Scientific Knowledge, Science Learning, and Science Teaching: Context Dependency of Epistemological Beliefs (예비 과학 교사의 과학, 과학 학습, 과학 교수에 대한 인식론적 신념: 인식론적 신념의 맥락 의존성)

  • Yoon, Hye-Gyoung;Kang, Nam-Hwa;Kim, Byoung-Sug
    • Journal of The Korean Association For Science Education
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    • v.35 no.1
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    • pp.15-25
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    • 2015
  • This study examined pre-service secondary physics teachers' epistemological beliefs about scientific knowledge, science learning, and science teaching in two different science content topics, Lamarckism and the impetus theory. Two sets of open-ended questionnaires, for each of the topics respectively, were developed in the same format. The pre-service teachers completed the questionnaires at one month intervals. The beliefs were analyzed in two dimensions, knowledge justification and knowledge change for each belief area. The findings show that the majority of pre-service teachers held sophisticated epistemological beliefs about scientific knowledge regardless of content topics. On the other hand, more pre-service teachers exhibited sophisticated beliefs about science learning in the context impetus theory than Lamarckism. In the area of science teaching, the majority of pre-service teachers demonstrated a sophisticated view in knowledge justification but a naive view in knowledge change. When consistency across science topics and belief areas were examined, few pre-service teachers held consistent epistemological beliefs across all topics and areas. The difference in the levels of sophistication in belief areas showed that the pre-service teachers did not connect their epistemological beliefs about science knowledge to their ideas about science teaching and learning. This disconnection seems to make the consistency across topics and areas complicated. The difference in epistemological beliefs about science learning and teaching between two science topics need further inquiry. Implications for teacher education are offered.

Analysis of High School Students' Viewpoints based on Science History about Motion of Objects (과학사에 기초한 물체의 운동에 대한 고등학생들의 관점 분석)

  • Paik, Seong-Hey;Jo, Young-Jin
    • Journal of The Korean Association For Science Education
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    • v.26 no.3
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    • pp.317-329
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    • 2006
  • In this research, a questionnaire was developed to investigate high school students' viewpoints, originating from science history, on 'motion of on object', the subjects were seventy- five 10th grade students and sixty-five 11th grade students. Results found that the highest percentage among the types of 10th grade students' thoughts was related to the Middle Ages 'Impetus' viewpoints. Percentages of 11th grade students' thoughts were highest for Middle Ages and Newton views. These results provided proof that the development of student thoughts' based on science history' are consistent with school year. Furthermore, student thought regarding 'object motion' under the conditions of no force, vacuum, or air under a weightless stage were related to progressive viewpoints on science history. However, the percentage of thoughts related to earlier viewpoints were considerable. Student thoughts on parabolic motion, circle motion, and conservation amount of motion were found to be highly significant in similarity to the viewpoints of Galilei, Descartes, and Huygens; view cultivated before Newton. Consequently, this study determined that educational efficiency could be raised by providing historically more progressive views to cope with conflictory student thoughts-thoughts related to past views in science history.