• Title/Summary/Keyword: 이과

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Factors Affecting Science Track Choice of Korean High School Students (한국 인문계 고교생들의 진로결정 요인)

  • Myeong, Jeon-Ok
    • Journal of The Korean Association For Science Education
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    • v.6 no.2
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    • pp.63-72
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    • 1986
  • 과학교육은 학생들이 장차 과학 기술분야의 직업을 추구하도록 하는 것을 그 중요한 결실의 하나로 잡고 있다. 현재 한국은 과학과 기술의 발전을 교육의 주요목표의 하나로 삼고 있으며, 정부에서는 보다 많은 영재를 과학 기술분야로 유치하려고 여러 가지 정책을 펴고 있다. 그러나 이러한 정책도 결국은 학생이 과학 기술분야로 모여들지 않으면 그 효과가 없게 된다. 그런 점에서 학생들이 어떤 이유로 과학 기술분야를 선택하는지 혹은 기피하는지 그 원인을 아는 것을 중요한 과제라고 할 수 있다. 본 연구는 과학 및 기술분야의 직업을 갖게 되는데 결정적인 역할을 하는 고교생의 문 이과반 선택에 있어 그 진로결정에 영향을 주는 제 요인들을 규명하는데 목적을 두고있다. 연구대상은 대구시내외 남 녀 고교 1학년생 109명(문과 56명, 이과 53명)이었으며 조사방법은 설문지법을 사용하였다. 조사결과는 학생들의 문 이과반 선택에는 장래직업, 대학전공, 적성, 학과목에 대한 능력, 흥미 선호도, 가족 및 주위의 권유 등이 주요요인임을 보여주고 있다. 그중 문과를 지원한 학생들은 대체적으로 자신의 적성 이과과목에 대한 능력부족 인식, 내신 및 학력고사에서의 성적취득용이성 등 주로 자신의 내적 동기와 관련된 요인들을 들고 있는데 비해, 이과를 지원한 학생들은 밝은 직업전망, 가족 및 주위의 권유 등 외적인 동기도 큰 작용을 하고 있음을 보여 대조를 이루고 있다. 또 문과를 지원한 학생은 이과가 공부하기가 어렵고 성적을 올리기도 힘들어 이과를 기피한 경향을 보이는데 반해 이과 지원자는 문과를 기피하여 이과로 왔다는 응답은 별로 없는 점이 대조를 보였다. 본 논문은 이러한 결과가 던져주는 시사점과 과학교육의 개선책에 관한 제언을 제시하면서 결론을 맺고 있다.

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A Development of Distinguishing Examination of Liberal Arts and Natural Sciences through using Puzzles (퍼즐을 활용한 문과.이과의 판별 검사지 개발)

  • Byun, Young-Gu;Choi, Jae-Hyuk
    • The Journal of Korean Association of Computer Education
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    • v.15 no.3
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    • pp.25-35
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    • 2012
  • This research has a purpose to help academic high school students to choose their own career by developing an examination that distinguishes between liberal arts and natural sciences. Besides an aptitude test, I identified the necessity of a tool for distinguishing liberal arts and natural sciences, using an examination tool that uses puzzles to distinguish liberal arts and natural sciences and conducted the first examination. On the basis of the result of the first examination I made the second examination test, and the algorithm. After conducting the second examination to a variety of target subjects, like academic high school students, university students, and graduate students through the second examination paper and algorithm for distinguishing liberal arts and natural sciences, competent results have been deducted.

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Ethylene-Induced Auxin Sensitivity Changes in Petiole Epinasty of Tomato Mutant dgt

  • Chang, Soo Chul;Lee, Myung Sook;Lee, Sang Man;Kim, Jinseok;Kang, Bin G.
    • Journal of Plant Biology
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    • v.37 no.3
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    • pp.257-262
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    • 1994
  • The tomato (Lycopersicon esculentum Mill.) mutant diageotropica (dgt) lacking normal gravitropic response is known to be less sensitive to auxin compared with its isogenic parent VFN8. Straight growth as well as ethylene production in response to added auxin in hypocotyl segments of dgt was negligible. However, there was no significant difference between the two genotypes in auxin transport in petiole segments and its inhibition by the phytotropin N-1-naphthylphthalamic acid(NPA). Kinetic parameters of NPA binding to microsomal membranes were also non-distinguishable between the two. Its petiolar explants treated with ethylene developed epinastic curvature with the magnitude of response increased about 3 folds over non-mutant wild type. Ethylene-induced epinasty in both dgt and VFN8 was nullified by treatment of explants with the ethylene autagonist 2,5-norbonadiene. Lateral transport of 3H-IAA toward the upper side of ethylene-treated petioles in dgt, however, was not significantly more pronounced than in VFN8, the implications being that auxin sensitivity in the mutant was restored, or even rised above the wild type, by ethylene.

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Synthesis and structure of $[Cp^*Rh({\eta}^6-2,6-diisopropylaniline)](OTF)_2$

  • 백지영;한원석;이순원
    • Proceedings of the Korea Crystallographic Association Conference
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    • 2002.11a
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    • pp.29-29
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    • 2002
  • Reaction of [$Cp^*Rh(NO_3)OTf$] (1) with 2,6-diisopropylaniline under argon led to the formation of $[Cp^*Rh({\eta}^6-2,6-diisopropylaniline)](OTF)_2$, (2). Compound 2 was characterized by NMR, IR, elemental analysis, and X-ray diffraction. Crystallrographc data for 2: orthorhombic, space group $Cmc2_1$, $a=19.850(16){\AA}$, $b=9.870(8){\AA}$, $c=15.774(13){\AA}$, Z = 4, $R(wR_2)=0.0362(0.0938)$.

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Taxonomic Review of Fungivorous Tetratomidae (Coleoptera: Tetratomidae) in Korea with New Host Fungi (한국산 균식성 애버섯벌레붙이과(Coleoptera: Tetratomidae)의 분류학적 검토와 숙주버섯)

  • Jung, Boo-Hee
    • Korean journal of applied entomology
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    • v.50 no.2
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    • pp.125-130
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    • 2011
  • A taxonomic review of the fungivorous tetratomid beetles in Korea, which comprises four species belonging to two genera of two subfamilies, is presented. Three species, Holostrophus (Paraholostrophus) orientalis Lewis, 1895 and two newly recorded species, Pisenus insignis (Reitter, 1889) and Holostrophus diversefasciatus Pic, 1921, are identified and described herein. A photograph of adults, diagnoses, illustrations of diagnostic characteristics, and ecological information regarding habitat, and host fungi are provided.

Taxonomy of Endomychidae Leach (Coleoptera: Cucujoidea) in Korea (한국산 무당벌레붙이과(딱정벌레목: 머리대장상과)의 분류학적 검토)

  • Jung, Boo Hee
    • Korean journal of applied entomology
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    • v.53 no.1
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    • pp.39-49
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    • 2014
  • A taxonomic study of the fungivorous Korean Endomychidae is presented. Ten species in seven genera belonging to three subfamilies are recognized in Korea. Four species, Endomychus gorhami (Lewis), Eumorphus quadriguttatus pulchripes Gerstaecker, Lycoperdina castaneipennis Gorham, and Mycetina ancoriger Gorham, are newly recorded in Korea. Most species are associated with the fungus-grown bark, and mold contaminated materials. I provide information on host-fungi records of Korean Lycoperdina castaneipennis Gorham.

Two New Records of Histerid Beetles (Coleoptera: Histeridae) from Korea (2종의 한국산 풍뎅이붙이과 미기록종 (딱정벌레목: 풍뎅이붙이과)에 대한 보고)

  • Seung, Jinbae;Lee, Seunghwan
    • Korean journal of applied entomology
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    • v.58 no.1
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    • pp.55-61
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    • 2019
  • Two new records of family Histeridae are recognized for the first time from Korea: Niponius impressicollis Lewis, 1885 and Gnathoncus nannetensis (Marseul, 1862). Morphological comments and photographs for each species are provided.

Structure and Electric Properties of $(Ba_{1-x}Pb_x)TiO_3$ Ceramics ($(Ba_{1-x}Pb_x)TiO_3$ 세라믹의 구조와 전기적 특성)

  • Kim, Si-Joong;Kim, Keon;Park, Hyu-Bum;Ahn, Byeung-Joon
    • Journal of the Korean Ceramic Society
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    • v.29 no.4
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    • pp.259-264
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    • 1992
  • The crystal structures and the bonding characteristics in $(Ba_xPb_{1-x})TiO_3$ have been investigated by X-ray diffraction analysis and infrared spectrophotometry. As $Ba^{2+}$ ion in $BaTiO_3$ were substituted by $Pb^{2+}$ ion, the structures were changed to orthorhombic from tetragonal, and also the covalent character in Ti-O bond increased, and then the dielectric constants decreased gradually. In the mixed oxide containing $Pb^{2+}$ ion more than 50%, the change-transfer energy of titanium ion increased.

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The Effect of Functional Leg Length Inequality in Center of Pressure and Limits Of Stability (기능적 다리 길이 차이가 압력 중심점과 안정성 한계에 미치는 영향)

  • Jo, A-Ra;Min, Ji-Won;Son, Kwang-Hee;Lee, Yu-Ri;Ha, Min-Ju;Koo, Hyun-Mo
    • PNF and Movement
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    • v.12 no.4
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    • pp.201-207
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    • 2014
  • Purpose: The purpose of this study was functional leg length inequality effect on COP(Center Of Pressure) and LOS(limits Of Stability) and EMG activation. Methods: The participants were consisted of fourteen. Subjects were distributed 2 groups; control group, leg length inequality ${\leq}3mm$, n=8), experimental group(leg length inequality${\geq}10mm$, n=8). The participants were measured leg length wearing comfortable clothes through tape measure method(TMM). All subjects was measured COP(Center Of Pressure), LOS(limits of stability) using by Balance Trainer BT4(HUR, Finland). Results: The results COP was not exist statistical significant differences(p>0.05). LOS was not exist statistical significant difference(p>0.05). Conclusion: The results was not statistical significant differences COP and LOS depending on Leg Length Inequality. But between experimental group and comparison group was exist mean differences on COP, LOS(COP:Ex.>Com, LOS:Ex.