• Journal of Gifted/Talented Education
• /
• v.16 no.1
• /
• pp.43-60
• /
• 2006

This study mainly intended to investigate the relation between scientific inquiry and several entrance exam results of the gifted in earth science gifted program. The scientific inquiry was tested with their experiment designs. Entrance exams included achievement scores, creativity scores, problem solving, and oral test of high ability students. Student entrance scores were used to judge the level of students' competency in science. Recently students' ability of 'doing science' as measured by their designing experiments has been highly appreciated as a criteria of scientifically gifted students. One of the well known tests was Diet Cola Test developed by Fowler(1990). We used it as a test to figure out students' experiment design ability. We selected 22 gifted students in earth science. We compared their entrance test scores and Diet Cola Test results. Based on the comparison results we proposed several guideline of science education program for high ability students.

• Korea Science and Art Forum
• /
• v.37 no.3
• /
• pp.113-123
• /
• 2019

In line with policy support and demand, mobile videos about science and technology have growth potential. For activation of domestic mobile video contents about science and technology, this article aims to analysis current global leading contents and draw implications for benchmarking. Therefore, this paper attempted to analyzed types and storytelling strategy of Science and technology channels on YouTube, which has the most influence among the mobile video media. The results are as follows. Fist, the YouTube contents about science technology are categorized into three types, activity-, explain-, review-centered type. Second, activity type channels are classified into 4 sub-types. Third, The core storytelling strategy of activity type channels is a combination of familiarity and unfamiliarity to deal with everyday material through specialized scientific and technological methods. Based on the results of this research, we expect to plan and produce global killer contents.

• Journal of The Korean Association For Science Education
• /
• v.26 no.3
• /
• pp.307-316
• /
• 2006

The purpose of this study was to analyze intellectual characteristics of elementary students in science-gifted education. For this, 72 science-gifted students were selected. Multiple intelligences, creativity, and the science process skills of these students were tested. To compare these traits with those of general students, 78 general students were also tested. The results of this study indicated that science-gifted students significantly surpassed general students in the areas of logical-mathematics, intra-person, and naturalist. Especially, the intelligences of logical-mathematics and intra-person were strong point of the science-gifted students. But music intelligence among the 8 intelligence was weak point. Creativity and the science process skills of the students in science-gifted education excelled those of general students. Therefore, to enhance the efficiency of the science-gifted education program in elementary school, it is necessary to consider the intellectual characteristics of the students.

• Korean Journal of Poultry Science
• /
• v.50 no.3
• /
• pp.143-159
• /
• 2023

The study aimed to evaluate the antioxidative effects of rosemary (Rosmarinus officinalis L.) and clove (Syzgyium aromaticum L.) essential oils on fried Korean native thigh meat, including their impact on processed characteristics and flavor compounds. Clove essential oil showed higher DPPH scavenging activity, FRAP and total phenol content compared to rosemary essential oil (P<0.05). The treatments with the addition of 0.005% and 0.01% rosemary (0.005RB and 0.01RB) and clove (0.005CB and 0.01CB) essential oils to the batter weight compared to control that did not include essential oils in batter. The addition of rosemary and clove essential oils to fried Korean native chicken thigh meat did not significant affect proximate composition, pH, TBARS, sensory characteristics. Except for 0.005CB, treatments adding essential oils decreased cooking loss (P<0.05) and 0.005CB showed significantly higher pick-up value than control. Addition of clove essential oil in fried Korean native chicken thigh meat resulted in higher levels of arachidonic acid compared to control (P<0.05). Volatile organic compounds (VOCs) analysis showed that addition of rosemary essential oil might mask its own VOCs, while clove essential oil addition reduced some pyrazine compounds. Although addition of rosemary and clove essential oil did not have significant sensory characteristics on fried Korean native chicken thigh meat, instrumental analysis revealed changes in the compounds that influenced flavor. Further studies are required to evaluate the stability of flavor and sensory characteristics of fried Korean native chicken thigh meat with added essential oils during storage.

• Journal of the Korean Applied Science and Technology
• /
• v.33 no.3
• /
• pp.483-491
• /
• 2016

Even though the antifogging property of nanosilica coated glass surface is highly increased due to the hydrophilic hydroxyl groups on nanosilica surface, the durability of this property on outdoor glass was diminished rapidly after rain washing. In addition the topology of nanosilica coated glass surface plays very important roles to control an light transmittance or antireflection property. To improve these coating durability and characteristics a hydrophilic nanosilica coating on glass was prepared by coating with 1.5 wt% of nanosilica (Ludox) suspension in the presence of hydrolyzed tetraethylorthosilicate (TEOS). The optimum hydrolysis condition of TEOS in acidic or basic aqueous solution was also examined by contact angle measurement. The final transparent hydrophilic coating layer coated with nanosilica-TEOS in acidic condition (pH=4) showed much improved durability of hydrophilic surface as well as higher visible light transmittance than original uncoated glass by 2 % point.

• Journal of the Korea Organic Resources Recycling Association
• /
• v.20 no.4
• /
• pp.127-133
• /
• 2012

The 'SSaM-GG'(=Smart, Shared, and Mutual- Green Growth) as the five bottom lines for sustainable development is developed and suggested. Because the name of Green Growth alone is not sufficient for clear conceptualization, implementation. and etc. For the global harmonized usage & application, the Eastern-Western conceptual fusion has been performed, and verified for more than 12 years on the worldwide successes and failures.

• Journal of the Korean Applied Science and Technology
• /
• v.12 no.1
• /
• pp.47-54
• /
• 1995

Water pollution, which is caused by surfactants, is increased by insolubility and excessive uses of detergents. The detergency properties of nine kinds of amphoteric surfactants derived from imidazoline were investigated and compared with sodium lauryl sulfats(SLS) of petrochemical surfactant by using detergent formulations. Several physico-chemical properties were measured to investigate the effective factors on detergency. From the comparision of these compounds with SLS, it was found that 1-(2-hydroxyethyl)-1- (3-sulfonatedpropyl)-2-undecyl-2-imidazolinum [IV] has the most outstnading characteristics of detergency and various fundamental properties. Therefore, this result is expected to do its environmental stability as a nonpolluting detergent. Detergency process of surfactants were discussed in relation to physico-chemical treatments. Performance improvement on detergency is made work of adhesion to soil as small as possible. Therefore these results show that contamination is easily removed and industrial applications may be respected.

• Journal of Digital Convergence
• /
• v.18 no.10
• /
• pp.137-146
• /
• 2020

The purpose of this study is to confirm the moderating effect of the 'IRrelevance Processing'(IRP) on the relationship between decision maker's openness and business problem solving creativity (BPSC). In order to confirm the psychological mechanism of BPSC and openness, we developed the irrelevance processing. In particular, the creativity in this study is different from the general creativity studied in psychology. BPSC is a study with practical value applied in the management environment. The results showed that openness of the decision maker was correlated with the BPSC, and that the irrelevance processing was a psychological mechanism to moderating effects relationship between openness of decision makers and BPSC. This paper proved the correlation between the propensity of decision makers and BPSC, and contributed to the study of corporate creativity by identifying the psychological mechanisms.

• Korean Journal of Agricultural Science
• /
• v.19 no.1
• /
• pp.103-114
• /
• 1992

Screening for antioxidative activities of 180 species of crude drugs were performed on their methanol extracts. More than 45% of those showed some effect on oxidative stability of linoleic acid, and 44 species seemed to have rather strong antioxidative activity. Selected these samples of the active crude drugs were further examined in their methanol extracts with methyl linoleate emulsion system. especially 11 species revealed strong antioxidative activity. These 11 species were then successively extracted with ethyl acetate and petroleum ether, and their antioxidative activity was determined. The ethyl acetate and petroleum ether extracts of Epimedium Koreanum NAKAI, Psoralea Corylifolia L., Syringa Dilata NAKAI and Prunus mume Sieb, et Zucc. showed much more effective than the others in stabilizing methyl linoleate. Scutellaria baicalensis George. Glycyrrhiza glabra L. were only effective in the methanol extract.

• International Area Studies Review
• /
• v.12 no.3
• /
• pp.3-23
• /
• 2008

We investigated the effects of policy reform, industrial transformation, and initial conditions on the agricultural productivity changes in 28 transition countries. Our findings are: (i) Asian and CEE transition countries performed better than CIS countries, while the performance improvement of CEE countries seems to be more prominent compared to that of Asian and CIS countries; (ii) The technical progress proved to be the main source of productivity growth, particularly in CEE countries; (iii) Reform policy and industrial transformation seems to have positive effects on the performance of agricultural sector and its changes; (iv) The initial conditions also matter.