• Title/Summary/Keyword: science aptitude

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A Study on an Alternative to the Standardized Scoring System in CSAT (대학수학능력시험에서 표준점수제의 개선방안에 대한 연구)

  • Hwang, Hyung-Tae
    • The Korean Journal of Applied Statistics
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    • v.18 no.3
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    • pp.521-532
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    • 2005
  • In the current College Scholastic Aptitude Test (CSAT), the standardized scoring system is being adopted to adjust te differences of degrees of difficulty between the optional subjects. But it becomes clear that the system has several weak points, some of which are considered to be very serious. In this paper we propose an alternative method, so-called the additive scoring system. It determines the additional points per each subjects, according to the subject mean scores. The proposed method has been simulated using the data of 2005' CSAT, and it turns out that the additive scoring system reduces or remove the troubles caused by the standardized scoring system.

Feasibility Analysis of ICT for Public Educational Environment (공교육시설의 스마트 교육환경 수요조사)

  • Kim, Seung-Je;Kimm, Woo-Young
    • Journal of the Korean Institute of Educational Facilities
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    • v.18 no.5
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    • pp.43-50
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    • 2011
  • There are emerging issues to update the educational environment for schools in terms of information and communication technology in order to provide customized programs to students as well as all participants relating to learning and teaching. The past year has been turbulent as the education facilities has changed and new procurement processes such as BTL have emerged. In this study, the feasibility analysis of ICT for the public educational environment is to analyse the current primary schools by means of collecting parent's opinion. In the web-site questionnaires, it was designed with 70 items such as teaching method, class organization, aptitude drill and educational community. As results, the statistical analysis is to propose the list of priority and orientation covering social agenda in the issue of ICT for education, the benefits schools can achieve by smart environment is to have the advanced learning services and solutions that represents parental engagement with identical local aims of interactive interface between their students and qualified teachers at a school. Both the national curriculum as well as the after-school program initiatives from the ministry of education, science and technology may reduce negative effects of private education so that the program has to be carefully developed for balanced education society revitalizing mutual communication within regional learning participants such as students, teachers and educational experts.

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Comparison of Physicochemical Properties of Hard and Floury Type Rice Flour by Dry Heat Treatment (건열처리에 따른 경질미와 분질미 쌀가루의 이화학적 특성 비교)

  • Jung, Hee Nam
    • Journal of the Korean Society of Food Culture
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    • v.36 no.5
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    • pp.484-491
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    • 2021
  • This study investigated the effect of dry heat treatment (DHT) on the physicochemical properties of hard type (HR) and floury type (FR) rice to improve the processing aptitude of rice flour. The rice flour was heated at 130℃ for 0, 2 and 4 hours, and the color value, water absorption index (WAI), water soluble index (WSI), swelling power, solubility, pasting properties, particle shape and the X-ray diffraction were measured. After DHT, the L value of rice flour decreased, and the b value increased. The WAI, WSI, swelling power and solubility of HR and FR increased with the increase of treatment time. The cold viscosity and setback increased, while breakdown decreased. Cracks and lumps formed with fine particles were observed. The X-ray diffraction pattern was A-type, while the diffraction intensity decreased. According to the results of the two-way analysis of variance (ANOVA) test, the hydration and pasting properties were significantly different between HR and FR and were affected by DHT time. The results suggest that the properties of modified rice flour by DHT can be used in the food industry.

Stability and Processing Characteristics of Microencapsulated Squid Liver Oil by Fluidized Bed Coating (오징어 간유 미세캡슐의 유동층 코팅에 따른 품질 특성)

  • Hwang, Sung-Hee;Youn, Kwang-Sup
    • Korean Journal of Food Science and Technology
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    • v.40 no.6
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    • pp.621-625
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    • 2008
  • Squid oil is an abundant source of polyunsaturated fatty acids. This is particularly true for eicosapentaenoic acid and docosahexaenoic acid. The principal objective of this study was to extend the stability and improve the process aptitude of squid liver oil. Fluidized bed coatings were employed for coating with microencapsulated oil. The efficiency of the fluidized bed coating of the microencapsulated powder was over 90%. The apparent density with zein-DP was 0.6 g/mL, thereby indicating that flow ability had been improved as the result of an increase in specific gravity. The solubility of artificial gastric and enteric fluids with HPMC-FCC was 59.9 and 0%, respectively, whereas with zein-DP solubility was 0 and 31.0%, respectively. Polyunsaturated fatty acid retention results demonstrated that zein-DP coating was higher than HPMC-FCC, followed by the microencapsulated squid liver oil method. These results demonstrated that the application of microencapsulation and fluidized bed micro-coating techniques improved the stability and processing compatibility of squid liver oil.

Contribution of Geophysics to the Study of Barite Mineralization in the Paleozoic Formations of Asdaf Tinejdad (Eastern Anti Atlas Morocco)

  • Ibrahim, Dakir;Ahmed, Benamara;Habiba, Aassoumi;Abdessalam, Ouallali;Youssef, Ait Bahammou
    • Economic and Environmental Geology
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    • v.53 no.3
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    • pp.259-269
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    • 2020
  • The use of the geophysical method in mining prospecting has been studied in the Asdaf region (South-East of Morocco). The objective of the study is to examine the aptitude of the electrical technique, in this case induced polarization (IP) and electric tomography, combined with the electromagnetic method (VLF), in the exploration of barite . The result obtained by the pseudo-sections of electrical tomography and that of KH filtration highlighted anomalies of resistant contact (greater than 400Ω.m) and of high charge chargeability (5mV / V). These contacts are hosted in less resistant Devonian age shale and sandstone. The resistivity response obtained at their level is characteristic of the venous structures associated with barite mineralization. The direction of the mineralized veins is parallel to the direction of the fractured zones (NE-SW), which indicates that the mineralization in place is due to the tectonic movements of the Hercynian orogeny (from Devonian to Permian). These veins are aligned with the locations of abandoned mine shafts and with surface mining areas. Geophysical technique therefore seems to play a key role in barite mining exploration.

Development of Teacher Questioning for Improvement of Scientific Creativity and Its' Application - Case Study for Earth Science Class in High School - (과학적 창의성 신장을 위한 교사발문의 개발 및 적용 - 고등학교 지구과학 교과 중심으로 -)

  • Cho, Kyu-Seong;Park, Mi-Sook;Chung, Duk-Ho
    • Journal of Science Education
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    • v.33 no.1
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    • pp.122-132
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    • 2009
  • This study aimed at designing an effective earth science instruction which would help to improve students' scientific creativity using the questioning strategies. The developed questioning strategies were applied to 153 students of $10^{th}{\sim}11^{th}$ grades from March, 2004 to February, 2006. The Reaction Evaluation of Educational Program was used for students' reponses on these questioning strategies. And the Creativity Test developed by the Korea Institute for Aptitude Test was used for the changes of students' scientific creativity. The students responded that these questioning strategies improved students' scientific creativity, and those did not promoted interaction between the teacher and the students. After implementing these questioning strategies, students' analogical ability of language was evaluated the largest score among the 6 categories of scientific creativity. The survey about students' scientific creativity showed that there are meaningful differences between before and after implementing these questioning strategies : analogical ability of figure, analogical ability of language, reading comprehension ability.

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Study on the System Improvement for Accident Prevention of Forestry Operations in Korea (산림작업에서 안전사고 예방을 위한 제도적 개선에 관한 연구)

  • Kim, Hee-Yul;Park, Chong-Min
    • Journal of Korean Society of Forest Science
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    • v.103 no.4
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    • pp.574-582
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    • 2014
  • In order to prevent occupational injury in forestry operations, several laws and regulations related to forestry have been enacted. Forestry education and training is overseen by the Forest Training Institute under the Korea Forest Service and three training centers under the National Forestry Cooperative Federation. The latter are managing both common and specialized courses, with safety education and training as an important focus. Improvements to reduce the accident rate are as follows: (1) strengthening of qualifications (via aptitude test) and selection standards of forestry workers (such as age limits); (2) raise of the number of training days and the rate of certified essential forces that compose Units of Forest Craft Workers; (3) revision of regulations to select forestry management engineers (second grade certified engineer); (4) introduction of a qualification renewal system; (5) improvement of working conditions at forestry scenes and systemization of safety education; (6) revision of regulations of individual protection equipment; (7) enforcement of wearing individual protection equipment; (8) supplementation of disaster response for increasing safety perception.

Attitudes of Nursing Students to Clinical Education : Q methodological Approach (임상실습에 대한 간호학생의 태도 : Q 방법론 적용)

  • 박송자
    • Journal of Korean Academy of Nursing
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    • v.23 no.4
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    • pp.544-554
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    • 1993
  • The study was designed to identify the attitude of nursing students to clinical education through Q-methodology. A C sample was developed through a review of the literature and interviews. Twenty - seven statements made up the finalized Q- sample. This was out of an initial 143 statements developed through consultation with eight professors. The P sample consisted of 25 nursing students in S Health Junior College.0 statements were written on seperate cards and were given to the 25 subjects to sort according to degree of agreement or disagreement. The Q-sorts by each subject were coded and analyzed with QUANL PC Program. The analysis discovered three major attitudes, namely “amicable adaptation” 〈type 1), “Nightingale social service” (type 2), and “realistic occupation pursuit” (type 3). The correlation was .465 between type 1 and type 2, .293 between type 1 and type 3, and .273 between type 2 and type 3. The characteristics of each type were as follows ; Type 1 (amicable adaptation) They satisfied in interpersonal relationships in the clinical setting. They would not dream of becoming Nightingale, but thought of nursing care affirmatively and performed their works faithfully and adapted themselves to the new circumstances easily, Fourteen subjects were classified as type 1. Type 2 (Nightingale: social service) They often dreamed as a child that they would be Nightingale with a white uniform and think that nursing is a gift from heaven. They have an aptitude for nursing care by nature and selected nursing science them-selves. They give care to the sick with pleasure. Seven subjects were classified as type 2. Type 3 (realistic occupation pursuit) They were not satisfied with their nursing practice. First of all they want a stable job, therefore they selected nursing science. They had conflicts in clinical practice, but were responsible for nursing and studied hard. Four subjects were classified as type 3. Through the results of this study, the attitude of nursing students to clinical education could be classified into three types. Therefore it is suggested that clinical education would be more valuable, if it was planned according to an understanding of the attitudes of nursing students to clinical education.

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Effect of Self-Efficacy, Self-Elasticity, Major Satisfaction of Some Students Majoring in Dental Hygiene on Campus Life Adaptation (일부 치위생과 학생의 자아효능감, 자아탄력성, 학과만족도가 대학생활 적응에 미치는 영향)

  • Yun, Hyun-Kyung;Choi, Mi-Sook;Cho, Woo-Sun
    • The Journal of Korean Society for School & Community Health Education
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    • v.16 no.1
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    • pp.1-14
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    • 2015
  • Objectives: The purpose of this study was to examine the effects that the self-efficacy, self-elasticity, and major satisfaction of students majoring in dental hygiene would have on the adaptation to the campus life. Methods: The total 396 students were surveyed who majored in dental hygiene in universities located at Gyeongbuk and Gyeongnam from October 15, 2013 to October 30. The collected data were analyzed by using the SPSS 17.0 program, along with the One-Way ANOVA, correlation analysis, and multi-regression analysis. Results: The 'aptitude and interest' were found to be greatest factor among the motive for application among the factors of self-efficacy, self-elasticity, and major satisfaction of students, depending on general characteristics. The results of correlation analysis showed that the self-elasticity had a correlation of 0.741 and the adaptation to the study had a correlation of 0.420 in the self-efficacy, while the individual emotional adaptation, adaptation to university environment, and adaptation to the study had a correlation as high as over 0.4 in the self-elasticity(p<0.05). In addition, it was found that the adaptation to the campus life increased proportionally to the self-elasticity and major satisfaction(p<0.05). Conclusions: To increase the campus life adaptation of students majoring in dental hygiene, it is considered necessary to explore the measures that can improve the self-elasticity and overall major satisfaction.

Job Mobility of the University Graduates Youth In Korea (대졸 청년층의 노동이동 분석 - 인문사회계와 이공계 졸업자를 중심으로 -)

  • Kim, Ahn-Kook
    • Journal of Labour Economics
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    • v.28 no.3
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    • pp.39-76
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    • 2005
  • This study examines the job changes of the youth university graduates in Korea. The pattern of job changes get observed in the Unemployment Insurance Database. This data enables us tracing all job changes in the labor market. The average number of job youth graduates have for four years from graduate is 1.68. The more jobs youth have, the longer total tenure youth have. Youth are much more likely to change careers to different occupation or industry. They move usually into upper occupations but small establishments. They enhance the level of wage through job changes. The science and engineering graduates are more likely to change jobs than the humanity and social science graduates. The higher the level of wage they get is, the lower the probability of their job change is. Those who have good scores in Scholastic Aptitude Test are less likely to change job.

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