• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.1
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• pp.104-109
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• 2009

This paper designed 3D animation in consideration of young children's characteristics to stimulate their interest and to be more understandable to them. It was also confirmed that, using the 3D animation software, young children came to recognize the problem of environment pollution and developed desirable attitude and behavior fur protecting the environment. Furthermore, this paper suggested the derection of systematic environmental education at kindergartens and other early childhood education institutions using the developed 3D animation software as a leaching material.

• Journal of radiological science and technology
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• v.40 no.1
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• pp.19-25
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• 2017

The aim of this study was to evaluate Magnetic Resonance Imaging safety by measuring the translational attraction, torque and susceptibility artifact for Bone-Anchored Hearing Aid (BAHA) implant at 1.5 T and 3.0 T MRI by standard criteria. In vitro assessment tools were made of acrylic-resin by American Society for Testing and Materials (ASTM) F2052-06 and F2119-07 standard. Translational attraction of BAHA implant was measured by the maximum deflection angle at 96 cm position, where the magnetically induced deflection was the greatest. The torque was assessed by the qualitative criteria of evaluating the alignment and rotation pattern, when the BAHA implant was positioned on a line with $45^{\circ}$ intervals inside the circular container in the center of the bore. The susceptibility artifact images were obtained using the hanged test tool, which was filled with $CuSO_4$ solution. And then the artifact size was measured using Susceptibility A rtifact Measurement (SA M) software. In results, the translational attraction was 0 mm at both 1.5 T and 3.0 T and the torque was 0(no torque) at 1.5 T, and +1(mild torque) at 3.0 T. The size of susceptibility artifacts was between 13.20 mm and 38.91 mm. Therefore, The BAHA implant was safe for the patient in clinical MR environment.

• Hwankyungkyoyuk
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• v.24 no.4
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• pp.41-50
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• 2011

This study examines how literary experiences cultivate environmental sensitivity. In this study we have 3 children(6th graders) to experience 3 selected literary works. The experience of 3 children focusing on characters is divided into 'sympathy', 'identification' and 'hostility' by empathy types. In literary experiences, children naturally support the values pursued by main characters. The experience focusing on plot events is consists of 'sympathy' and 'advice'. The children agreed with the way how the characters solved environmental issues while involved in the events by offering advice to characters whose actions they did not agree to. The experience focusing on topics is divided into 'assimilation' and 'reflection'. The children experienced the assimilation process. Furthermore, they reflected on new environmental issues. This result suggests literary experience subserve children to reflect value through empathy and cultivate their intention toward pro-environmental behavior by generating environmental sensitivity.

• Korean Journal of Environmental Agriculture
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• v.15 no.1
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• pp.46-69
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• 1996

The studies were conducted to obtain the basic information of the effects of pollutants on plant species and to select the plant species showing specific responses to the pollutants. For these purposes, paraquat, ammonium, and cadmium as a source of oxidative stress, nitrogen toxicity, and heavy metal toxicity respectively were treated to the plant species. Among the tested plants, Lamiaceae, Brassicaceae, and Caryophyllaceae were tolerant to paraquat, whereas Poaceae and Asteraceae were sensitive. Especially Mosla dianthera of Lamiaceae, Hemistepta lyrata and Aster pilosus of Asteraceae, and Paspalum thunbergii of Poaceae showed higher tolerance than others. Paraquat resistance was related with life style, overwintering capacity, so perennial and biennial species showed higher tolerance than annual species. In response to ammonium, Poaceae showed higher resistance while Fabaceae and Caryophyllaceae showed sensitiveness. Weed species having tolerance to ammonium were Echinochloa crus-galli var. praticola, Panicum dichotomiflorum, Setaria glauca, Chenopodium album, and Solanum nigrum, while Mosla dianthera, Arenaria serpyllifolia and Perilla frutescens var. japonica showed sensitiveness. In the response of plant species to cadmium, Digitaria sanguinalis, Amaranthus lividus showed higher resistance, whereas Galinsoga parviflora, Plantago asiatica, Ambrosia trifida, and Paspalum thunbergii showed sensitiveness. The injured degree on germination stage by pollutants did not related with injured degree on matured stage. During germination, the root elongation was more sensitive than shoot elongation by pollutants, paraquat, ammonium, and cadmium.

• 한국벤처창업학회:학술대회논문집
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• 2018.04a
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• pp.61-64
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• 2018

우리나라 특성화고는 산업사회의 각 분야에서 종사할 유능한 인재를 양성하고 합리적이며 능률적인 직업인을 육성하려는 목표로 1998년에 도입되었다. 2010년에는 독일, 스위스, 오스트리아 등에서 자리 잡은 마이스터고 제도를 도입하여 변화를 시도하였다. 유럽에서의 마이스터고는 창업 성공률이 98%에 이를 정도로 창업의지가 높은 학생들로 구성되었다. 우리나라 또한 특성화고 학생들의 창업의지를 높이기 위해서 정부와 민간 기관에서 다양한 시도를 하였다. 창업진흥원의 기업가 마인드 확산 교육 비즈쿨(2002년), 한국시민자원봉사회의 특성화고 대상 창업 마인드 확산 경진대회 Be the CEO(2004년), 아산나눔재단과 어썸스쿨의 앙트러프러너십 교육 히어로스쿨(2014년) 등이 사례이다. 본 저자도 2011년부터 중소벤처기업부와 SK가 공동으로 주최하는 고교생 앱 개발경진대회를 직접 운영하면서 특성화고 학생들의 창업의지를 높이기 위한 방안에 대해 오랫동안 고민하였다. 본 연구에서는 특성화고 학생들의 앙트러프러너십이 창업의지에 미치는 영향을 연구하였다. 앙트러프러너십의 구성요소는 Miller(1983)가 주장한 위험감수성, 혁신성, 진취성에 기회인지를 추가하였다. 또한, 특성화고 학생들이 학교 교육과 다양한 외부활동을 통하여 접하고 있는 창업멘토링이 앙트러프러너십 구성요소와 창업의지간에 조절효과가 있는지 밝히고자 하였다. 이를 위해 전국 491개(2017년 말) 특성화고등학교 중 지역별로 안배하여 14개 학교 학생들을 대상으로 설문을 시행하였으며, 설문서 287부를 실증분석에 활용하였다. 연구분석 결과 특성화고 학생의 기회인지, 위험감수성, 혁신성, 진취성은 모두 창업의지에 긍정적인 영향을 미치는 것으로 나타났다. 한편 기회인지, 위험감수성 등 앙트러프러너십 요소와 창업의지 관계에서 창업멘토링의 조절효과는 진취성에만 긍정적인 영향을 미치는 것으로 나타났다. 창업멘토링의 조절효과가 진취성에만 국한된 것은 특성화고는 창업보다는 취업 중심의 정책을 운영 중이어서 앙트러프러너십은 높으나 창업의지가 희박한 학생이 많았고, 기존의 창업멘토링 내용이 학생들의 창업의지를 높이는데 실제적인 도움이 되지 못하였으며, 창업을 가로막는 제도 때문에 멘토링 만으로는 창업의지를 높이는데 한계가 존재하였다. 본 연구의 결과가 우리나라 특성화고 학생들의 창업의지를 높이는 방안에 대한 연구를 촉발하는데 조그만 보탬이 되기를 바란다. 또한, 창업의지가 높은 특성화고 학생들이 창업을 실행할 수 있는 환경이 구축되고, 특성화고가 취업중심의 정책에서 창업친화적인 정책으로 개선하는 데 촉매제가 되기를 바란다.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.34 no.1
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• pp.86-91
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• 1989

Since most chemicals effect to the non-target organisms, present study was conducted to determine the effects of some herbicides to soybean nodule bacteria(Rhizobium japonicum) in vitro. Selective upland herbicides Alachlor, Linuron, Simazine and nonselective Paraquat were medicated to the YEMA media and survival rate of the bacteria in the medium was measured a week after incubation. Survival of soybean nodule bacteria in the media medicated with recommended concentration 400 ppm of Alachlor and Linuron were decreased significantly by 27.4 ％ and 57.8 ％, respectively. While little effect was observed in Simazine, a marked reduction of survival was observed in 200 ppm of Paraquat. Effects of Alachlor was different with isolates of the nodule bacteria. Isolate I -122 was relatively resistant and I -145 was more sensitive. than other isolates tested. Intermediate K-5 was the most resistant at the recommended dose and the survival dose was drastically reduced with increment of concentration. Nodule formation of the soybean plants was different with the varieties and isolates. The most nodulation was observed in the resistant isolates I -122 and K-S, for which the nodulation might be related with the resistance to the environmental stress factors.

• Korean Journal of Microbiology
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• v.9 no.2
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• pp.86-93
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• 1971

Escherichiae-like organisms were isolated from rectal specimens of 56 children who were either in preschool age or in elementary school. The isolated strains were subjected to tests to screen enteropathogens producing heat-labile enterotoxin and susceptibility test to various antibiotics by disc diffusion method on agar plates. Production of heat-labile enterotoxin by the strains was assyed in the sensitive and reproducible cultured adrenal tumor cell system. The assay was sterodogenesis of the cell in the presence of heat-labile enterotoxin. Among 56 strains, gave positive reaction in the test of toxin production. This meant that about 10% of the children population objected to the study harbored the toxigenic strain of enteropathogenes. Some of these toxigenic strains were resistant to the antibiotics employed in the test. This study suggested that considerable population in Korea may harbor entertoxigenic E. coli as a part of intestinal normal flora. The toxigenic strains which are resistant to antibiotics may bring issue of public health in the future.

• Korean Journal of Environmental Agriculture
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• v.19 no.2
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• pp.154-159
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• 2000

This study was carried out to elucidate the symptom of leaf injury to ozone and to determine varietal difference to ozone injury in rice and soybean plant. Ozone was produced by electrostatic discharge in oxygen and was monitored by UV absorption ozone analyzer. The rice leaves were spotted red and rolling leaf edge, discolored to reddish brown or yellowish white in response to ozone, and the leaves that were severely stressed were withered from the tip of leaf. The soybean ones were also discolored to lemon yellow, yellow or dark brown. The leaf injury in both rice and soybean was clearly appeared at the reverse side of leaf and in lower leaves. Milyang 23 and Nonganbyeo among rice cultivars tested were resistant to ozone, but Chucheongbyeo was resistant to it. The ratio of leaf injury was increased and chlorophyll content was decreased as the extension of ozone exposure from 2 to 8 hours in rice. Keunolkong and Danyeopkong among soybean cultivars tested showed resistant reaction to ozone, but Kwangankong and Muhankong were susceptible to it. It was observed that the soybean plants grown for 45 days after seeding were severely damaged by ozone than those of other growth stages.

• Research in Plant Disease
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• v.27 no.4
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• pp.164-171
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• 2021

In August 2020, 377 anthracnose strains were isolated from anthracnose-infected peppers collected from 25 farms in Sunchang-gun, Jeollabuk-do. Inhibition rate of mycelial growth of 11 pepper anthracnose fungicides registered in Korea was investigated for 62 strains selected by region and the degree of susceptibility to each fungicide was investigated. As a result of the fungicide susceptibility test of anthracnose to the fungicide, no resistant strains were observed in fluazinam, prochloraz manganese, and benomyl, but resistant strains appeared in at least three areas for other fungicides, and all strains in all regions were resistant to dithianon. Through this, it was confirmed that the fungicide resistance was expressed in the strain group due to the continuous treatment of the fungicide in some areas. By region, resistant strains to seven pesticides appeared in Sunchang-eup and Paldeok-myeon, and resistant strains to six pesticides appeared in Geumgwa-myeon, Bokheung-myeon, Ssangchi-myeon, Yudeung-myeon, and Pungsan-myeon. There was no significant correlation between fungicide registration time and emergence of resistant strains.

• Journal of Korean Society of Forest Science
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• v.108 no.4
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• pp.655-662
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• 2019

The aim of the present study was to examine the effects of school forests on the cognition and mental health of elementary school students. Data were obtained through the surveys of sixth graders in an elementary school in Seoul that took part in the School Forest Project run by Korea Post, the Korea Forest Welfare Institute, and the Seoul Metropolitan Office of Education. Students were surveyed before and after the creation of green spaces in their schools, and changes in their environmental sensitivity, attitude toward forests, depression, anxiety, and aggression were analyzed. The findings indicated that the creation of green spaces showed significant effects on the students in terms of encouraging them to strengthen their environmental sensitivity, helping them develop more positive attitudes toward forests, and reducing anxiety and physical aggression, which are the subfactors of aggressive behavior. In other words, creating school forests had positive effects on cognition and mental health, reduced bad behavior, and improved attitudes toward nature in children. The findings of this study are significant in that they reinforce the requirement of school forests by indicating the positive effects of school forests on children's cognition and mental health.