• 제목/요약/키워드: Scientific question

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중학생들의 빛과 그림자에 대한 증거 평가 (Middle School Student's Evidence Evaluation)

  • 박종원;장병기;윤혜경;박승재
    • 한국과학교육학회지
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    • 제13권2호
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    • pp.135-145
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    • 1993
  • This study investigated student's prior conceptions and evidence evaluation about Light and shadow. One hundred twenty six students were given Explanation-after-choice type Questions to investigate student' prior conceptions and Choicd type Question to identify student's idea about scientific method and characteristics od observation. Forty-four of the 126 students were interviewed to explore student's evidence evaluation. Eighty students (63.5%) thought that the shape of material affected the shape of shadow but the shape of light source did not Only 58.8 precents of all responses were evidence-based responses. Characteristics of evidence affected student's evidence evaluation : student made evidence-based responsed to the accord evidence more frequently than discord evidence. Among evidence-based response to the discord evidence. 35.5% of responses were the case that student felt cognitive conflict or explored other variables by recognizing discord between his/her own ideas and evidence or distort the evidence. Student's idea about characteristics of observation did not affect the evidence evaluation, but student's idea about scientific method affected the evidence evaluation.

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Videogames in Cybersecurity: Philosophical and Psychological Review of Possible Impact

  • Bogdan, Levyk;Maletska, Mariia;Khrypko, Svitlana;Leonid, Kryvyzyuk;Olga, Dobrodum;Pasko, Katerina
    • International Journal of Computer Science & Network Security
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    • 제21권7호
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    • pp.249-256
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    • 2021
  • An issue of security and threat is urgent as well as it concerns everyone: a person, community, state, etc. Today, the question of cybersecurity has become especially relevant due to general digitalization and the spread of the cyberculture. In terms of it, the growing popularity of videogames can be observed. Their impact on society differs significantly, therefore, it needs thorough consideration. The purpose of the article is to disclose the role of videogames in cybersecurity. To achieve the stated purpose, such methods as analysis, synthesis, systematization and practical involvement of videogames have been used. As a result, three levels of possible threat of videogames has been distinguished: videogames as a possibly dangerous software, as a tool of propaganda and spread of stereotypes, as a space for the creation of virtual communities. In conclusion, it is stated that videogames can be not only a threat, but also a tool for strengthening the cybersecurity.

Design as a Factor in the Formation of Worldview Paradigms in Culture

  • Lopukhova, Natalia;Dementovich, Tetyana;Misheniuk, Anastasiia;Peresunko, Olena;Ternopolska, Yana
    • International Journal of Computer Science & Network Security
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    • 제21권12spc호
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    • pp.437-442
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    • 2021
  • This article highlights the importance of design in the formation of worldview paradigms in global culture. The research aims to investigate the design development as a part of the culture and its significance in the social development of society and worldview standards. The article uses general scientific methods of cognition, showing the transformation of design in the social and cultural sphere based on scientific and business literature. The research results show the chronology of design development as a factor determining the development of society and its worldview. In particular, the epoch of modernism, classical functionalism, postmodernism, post-industrialism, and digital design show their own particularities of design development. Furthermore, the article reveals the peculiarities of design development and its requirements depending on the development of society, progress, and civilization in general. The question of current and future trends in the development of design as a factor of worldview paradigms in the culture is based on digitalization, globalization, and the formation of design as an independent entity that determines man's place in the world and society.

Detection of flaw in steel anchor-concrete composite using high-frequency wave characteristics

  • Rao, Rajanikant;Sasmal, Saptarshi
    • Steel and Composite Structures
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    • 제31권4호
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    • pp.341-359
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    • 2019
  • Non-monolithic concrete structural connections are commonly used both in new constructions and retrofitted structures where anchors are used for connections. Often, flaws are present in anchor system due to poor workmanship and deterioration; and methods available to check the quality of the composite system afterward are very limited. In case of presence of flaw, load transfer mechanism inside the anchor system is severely disturbed, and the load carrying capacity drops drastically. This raises the question of safety of the entire structural system. The present study proposes a wave propagation technique to assess the integrity of the anchor system. A chemical anchor (embedded in concrete) composite system comprising of three materials viz., steel (anchor), polymer (adhesive) and concrete (base) is considered for carrying out the wave propagation studies. Piezoelectric transducers (PZTs) affixed to the anchor head is used for actuation and the PZTs affixed to the surrounding concrete surface of the concrete-anchor system are used for sensing the propagated wave through the anchor interface to concrete. Experimentally validated finite element model is used to investigate three types of composite chemical anchor systems. Studies on the influence of geometry, material properties of the medium and their distribution, and the flaw types on the wave signals are carried out. Temporal energy of through time domain differentiation is found as a promising technique for identifying the flaws in the multi-layered composite system. The present study shows a unique procedure for monitoring of inaccessible but crucial locations of structures by using wave signals without baseline information.

How Does Intellectual Capital Fuel Non-Interest Incomes in Banks? New Case from an Emerging Country

  • Chi Huu Lu;Thich Van Nguyen
    • Journal of Contemporary Eastern Asia
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    • 제22권1호
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    • pp.1-25
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    • 2023
  • The aim of this study is to answer the straightforward question of whether the implementation of IC has fueled non-interest incomes of banks or not. By utilizing the data of 26 domestic banks in Vietnam and employing the value-added intellectual coefficient model (VAIC) as the measure of IC efficiency, our empirical evidence manifests that IC plays a vital role in fostering non-interest incomes of banks. When dividing VAIC into different components, we find that structure capital employed (SCE) is the most important component to enhance the expansion of these incomes compared with other components including capital employed efficiency (CEE), human capital efficiency (HCE). These findings remain unchanged through some robustness tests performed. While the main driver of IC and SCE, CEE component becomes a substantial advantage to increase non-interest incomes in large banks. Meanwhile, the degree of impact of SCE is higher in small banks compared with large ones. Overall, this study would provide a deep insight into the role of IC in the transformation into non-interest income activities of banks in an emerging country, and therefore our findings would be useful for both scholars and policy-makers in Vietnam, where has undergone the period of major reforms in banking system.

'탈인간의 심리학'과 자율적 주체의 운명 ('A Posthuman Psychology' and the Fate of Autonomous Subjects)

  • 최호영
    • 문화예술교육연구
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    • 제5권2호
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    • pp.1-17
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    • 2010
  • 인문학의 여러 분야에서 논의되고 있는 탈인간주의는 인간과 기계의 융합 경향 속에서 근대 인간관의 핵심인 '자율적 주체'의 운명을 문제 삼고 있다. 심리학은 19세기에 독립된 학문으로 성립된 이래로 인간을 자율적 존재로 보는 인문학적 접근과 인간을 결정된 존재로 보는 자연과학적 접근이 늘 병존해 왔다는 의미에서 이미 '탈인간의 심리학'이었다. 필자는 '자율적 주체'라는 관념이 우리가 목표지향적 행위자로서 살아가는 일상생활의 조직원리로서, 그리고 인간에 대한 인과적 지식에 의미를 부여하는 기본 개념틀로서 여전히 유효하다고 주장하였다. 그리고 문화와 문화교육은 과학기술이 인간의 목적합리성에서 벗어나지 않도록 성찰하고 조정하는 역할을 수행해야 한다고 주장하였다.

백두산 화산지형에 관한 연구사 (A History of Geomorphological Researches on Baekdusan Volcano)

  • 박경
    • 한국지형학회지
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    • 제27권3호
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    • pp.75-85
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    • 2020
  • Few studies have dealt with the question of when Mt. Baekdusan became known as a volcano. Attention has been focused rather on the issue of establishing the boundary between the Joseon Dynasty and the Qing Dynasty than the scientific nature of Baekdusan as a volcano. It is only in the late Joseon Dynasty that Park Jong (1764), who was the scholar of the Gwanbuk region, authored the first travel journal on Mt. Baekdu and described poseok. Due to the scientific curiosity of Westerners on the existence of mysterious snow peak on the border, it was first introduced to the Royal Geographical Society by a British man, H.E.M. James in 1887, who revealed for the first time that Mt. Baekdu is a dead volcano, and that the white color on the top is due to wide-spread pumice. Russian expedition teams including Strel'bitskii (Стрельбицкий, 1894, and Garin (Гарин-Михайловский, 1898), also explored this mountain seeking natural resources and territory of East Asia and the Manchurian region in pursuit of Russian Imperial interests explored and described Baekdusan as a volcano.

Definition of Scientific Hypothesis: A Generalization or a Causal Explanation?

  • Jeong, Jin-Su;Kwon, Yong-Ju
    • 한국과학교육학회지
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    • 제26권5호
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    • pp.637-645
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    • 2006
  • This study reviewed and discussed the nature of scientific hypothesis described in philosophy, the philosophy of science, science, and science education. In these descriptions, a hypothesis was defined as one of five types: hypothesis as an assumption, hypothesis as a prediction, hypothesis as a tentative explanation, hypothesis as a tentative law, and hypothesis as a tentative causal explanation. Most scholars agreed that a hypothesis is a proposition or a set of propositions proposed as an explanation for an observed situation. In this view, a hypothesis is a possible answer to or an explanation of a question that accounts for all the observed facts. Also, it is a statement that explains why things happen in nature or an explanation for an observation that can be tested. In the five types of hypothesis meanings, a tentative explanation includes a tentative law and a tentative causal explanation. However, tentative laws are not explanation but description which are general statements drawn from specific experiences by way of a process known as induction. A number of studies also have distinguished hypothesis from assumption, tentative explanation, tentative law, and prediction. Therefore, a hypothesis is concluded to be a proposition or a set of propositions proposed as a tentative causal explanation for an observed situation.

생명현상 관찰에서 나타나는 인과적 의문 생성의 ERF 특성 : MEG 연구 (ERF Components Patterns of Causal Question Generation during Observation of Biological Phenomena : A MEG Study)

  • 권석원;권용주
    • 과학교육연구지
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    • 제33권2호
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    • pp.336-345
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    • 2009
  • 이 연구의 목적은 생명현상 관찰에서 나타나는 인과적 의문 생성 ERF components를 개발하는 것이다. 이를 위해 우선 인지심리적 방법으로 생명현상 기반의 인과적 의문생성 유발 사진 과제를 개발하였다. 이를 활용해 전기생리적 방법인 MEG(Magnetoencephalography) 두뇌 영상 기기를 이용하여 시계열적 두뇌 처리과정에 기초한 인과적 의문의 ERF(Event Related Fields) 패턴을 확인할 수 있었다. 생명현상 기반의 인과적 의문생성 유발 사진은 과학교육 전문가와 과학교육연구진으로 구성된 인원의 R&D 방식으로 개발되었다. 과제는 생물군 유형에 따라 동물(A, animal), 미생물(M, microbe), 식물(P, plant)과제로 분류 형태를 나누고, 생물 개체 수준의 유형에 따라 개체간 상호작용(i, interaction), 단일 개체(a, all), 개체 일부(p, part)로 구분하여 총 100장에 대한 인과적 의문 유발 사진을 완성하였다. 이후 서울대학병원 MEG 센터팀과의 세미나 과정을 통해 MEG 과제용 패러다임을 개발하고, 과학교육 전공 여자 대학원생 5명(M=26.4, SD=2.30)을 대상으로 인과적 의문생성간 MEG data를 수집하였다. 이를 통해 인과적 의문 유형별 고유 특성을 확인하기 위해 MEG ERF components 분석을 실시하였다. 인과적 의문 생성시 나타나는 ERF components 분석 결과 M1(100~130ms), M2(220~280ms), M3(320~390ms), M4(460~520ms) 총 4개 components 패턴이 발견되었다. M1과 M2의 경우 인과적 의문 사진 과제 제시에 따라 피험자가 관찰하는 동안 보고 되는 것으로 dipole fitting 과정을 통해 두뇌 활성 영역을 확인해 본 것처럼 시각령이 위치하는 후두엽에 걸쳐 확인되었다. M3 components의 경우 인과적 의문에 대한 불확실감을 해소하기 위해 장기기억 저장소로부터 경험 상황을 가지고 오는 귀추의 과정을 반영한다고 볼 수 있다. 이는 이전 경험상황을 분석하는 단계에 해당하며 학생들이 가설을 생성할 때 가장 큰 어려움을 경험하여 교사의 적절한 도움이 요구되는 부분이다. M4 components는 장기 기억 속의 경험 상황에서 인과적 의문에 대한 설명자를 표상하는 단계에 해당하는 것으로 인과적 의문 생성 후 가설을 만드는 전 단계에 해당 한다고 할 수 있다. 본 연구는 확인된 인과적 의문 생성시 나타나는 MEG ERF components와 latency 시간을 통해 인과적 의문 생성에 어려움을 호소하는 학생들에 대한 개별적 교수 처치와 더불어 고등인지 영역의 ERF 연구의 기초를 마련하였다는데 의의가 있다고 하겠다.

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Scientific Inquiry and Group Theories in Political Science

  • 김일수
    • 한국과 국제사회
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    • 제1권2호
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    • pp.243-270
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    • 2017
  • 본 논문의 목적은 첫째, 과학적인 정치학 연구는 어떤 단계들을 거쳐 이루어지는지에 대해 살펴보고, 둘째, 이러한 과학적인 정치학 연구의 한 예인 그룹이론들 (group theories)에 대해 분석하고 있다. 논문의 전반부에서는 정치학의 과학적 연구를 위해 필요한 개념, 리서치 디자인, 가설 설정 등에 대해 살펴보고 정치학 연구의 과학화가 갖는 한계점에 대해서도 분석하고 있다. 논문의 후반부에서는 그룹접근법들인 역할이론, 그룹이론, 갈등해소이론, 공공선택이론, 합리적 선택 이론 등에 대해 분석하고 있다. 결론에서는 정치학 연구의 과학화가 갖는 한계점에도 불구하고 과학적 탐구가 정치현상을 분석하는데 도움을 주고 있기 때문에 학자들이 연구의 주제, 성향 등에 따라 전통적인 방법과 과학적인 방법을 혼용해서 쓰는 것이 필요하다는 점을 강조하고 있다. 또한 정치학의 과학화의 한 예인 그룹이론이 정치현상을 분석하는데 미친 긍정적인 영향과 그 한계에 대해서도 분석하고 있다.