• Title/Summary/Keyword: Science items

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STATUS OF KOREAN ASTRONOMICAL HERITAGE PRESERVED OVERSEAS (국외소재 한국 천문유물 현황)

  • KI-WON LEE;BYEONG-HEE MIHN;NARAE KIM;SANGKEUN LEE
    • Publications of The Korean Astronomical Society
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    • v.38 no.3
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    • pp.147-160
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    • 2023
  • In this study, we explore and catalog Korean astronomical heritages that are known to be preserved in foreign countries. We exclude old astronomical books from the catalog because they have been well studied and exist in numbers far too large for the scope of this study. From various documents and online collections, we find a total of 38 Korean astronomical heritages in six countries: 10, 11, and 14 items from the UK, France, and Japan, respectively, and 1 item from Germany, the US, and China each. These include items that are suspected to be of Chinese heritage and items of unconfirmed possession status. We divide the astronomical heritages primarily into two groups: time-keeping instruments (18 items) and astronomical charts (20 items). In this paper, we briefly review them according to country. We believe that this study provides a foundation for further detailed studies on each item, such as the Gujang-Cheonsang-Yeolcha-Bunya-Jido (舊藏天象列次分野之圖) preserved in the Library of Congress, United States.

Exploration of Features of Korean Eighth Grade Students' Achievement and Curriculum Matching in TIMSS 2015 Earth Science (TIMSS 2015 중학교 2학년 지구과학 영역에 대한 우리나라 학생들의 성취 특성 및 교육과정 연계성 탐색)

  • Kwak, Youngsun
    • Journal of The Korean Association For Science Education
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    • v.37 no.1
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    • pp.9-16
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    • 2017
  • The result of TIMSS 2015 was announced at the end of 2016. In this research, we conducted test-curriculum matching analysis for 8th grade earth science and analyzed Korean students' percentage of correct answers and responses for TIMSS earth science test items. According to the results, Korean students showed high percentage of correct answers when the item topics are covered in the 2009 revised science curriculum, and Korean students revealed their weakness in constructed response items since the percentage for correct answers on constructed response items is half that of multiple choice items. Depending on the earth science topic, for 'solid earth' area, which includes earth's structure and physical features, as well as earth's processes and history, students showed high percentage of correct answers for multiple choice items. Students, however, showed low percentage of correct answers for items that require applying knowledge to everyday situations and connecting with other areas of science such as biology. For 'atmosphere and ocean' areas, which include earth's processes and cycles, students showed low percentage of scores for climate comparison between regions, features of global warming, etc. For the area of 'universe', students showed high percentage of scores for the earth's rotation and revolution, the moon's gravity, and so on because they have learned these topics since primary school. Discussed in the conclusion are ways to secure content connection between the primary and middle school earth science curriculums, ways to develop students' science-inquiry related competencies, and so on to improve middle school earth science curriculum as well as teaching and learning.

Study on Establishment of Food Material Size Specification Based on Elementary School Menus (초등학교 급식 식단별 식재료 크기 설정에 관한 연구)

  • Kim, Eun-Mi;Hong, Sang-Pil;Lee, Min-A;Jeong, Mi-Kyoung;Cho, Tae-Oc
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.37 no.8
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    • pp.1058-1068
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    • 2008
  • This study was conducted to establish size specification of food material for elementary school meals, researched at school meal scene and surveyed with questionnaires about the management of food materials by workers devoted to preparing school meals. Most subjects (80.7%) answered that students were served smaller size than adults, whereas 11.0% answered that they served different sizes according to school age and 8.3%, that they served same size as adult. About the food material size specification for elementary school student, a majority of respondents reported that 3/4 or 2/4 of adult served size was suitable. The serving size was decided and executed to investigate the actual intake and the preference of students for food size by 2 methods, intake ratio and questionnaire in 6 elementary schools. It showed that intake ratio and preference of students may be changed by serving size. According to the result, food serving size was divided in 3 types per menu and food size was measured precisely using the white board inscripted calibration. Actual food serving size for adult and recommended food serving size for elementary school student was compared. The data collected were coded and used to decide food material specifications for 12 cooked vegetable items, 15 raw vegetable items, 9 kimchi items, 2 fermented fish and fish sauce items, 8 deep-fried items, 5 meat and meat product items, 19 fish items and 5 dried food items.

Trend Analysis of Secondary School Chemistry Teacher Certification Examination: School Years 2009~2013 (2009~2013학년도 중등교사 임용시험 화학교과 내용학 문항의 출제 경향 분석)

  • Choi, Byungok;Kim, Yongseong
    • Journal of The Korean Association For Science Education
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    • v.33 no.6
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    • pp.1202-1218
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    • 2013
  • This study analyzed questions related to the content knowledge on the subject of chemistry for middle and high school teacher employment examinations conducted from the school years 2009 to 2013 based on the evaluation scope of the chemistry subject content knowledge and evaluation contents that were presented by the Korea Institute for Curriculum and Evaluation (KICE). To achieve the objectives of this study, a total of 140 questions were collected with respect to the questions that appeared on the test over the last 5 years, which aimed to evaluate the level of applicants' knowledge related to the contents of chemistry subject. The ratio of the contents covered in the test was assessed based on the scope of evaluation and the items for evaluation among the 4 subjects. Based on the results, suggestions were presented in relation to the operation of the chemistry curriculum for the Department of Chemistry Education at the college of education or the restructuring of the evaluation scope. There was a significant difference in the ratio of items that appeared on the test among the 4 subjects related to the content knowledge on chemistry. Also, there was a remarkable difference in the ratio of items covered in the test among the evaluation scope by subject. The results of the analysis on the evaluation content items suggested that 41 items out of 122 did not appear in the teacher employment examination for 5 years. Based on such results of analysis, this study discussed the need for readjusting the ratio of items covered in the test on content knowledge related to chemistry or the evaluation scope and evaluation content items.

Reliability and Validity of the Measurement for Assessing Resourcefulness (자원동원성 측정도구의 신뢰도와 타당도)

  • 서순림;이은옥;이원기
    • Journal of Korean Academy of Nursing
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    • v.28 no.2
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    • pp.244-255
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    • 1998
  • The purpose of this study was to verify the reliability and validity of the Rosenbaum self-control schedule (SCS) for assessing resourcefulness in Korea and to explore the simplified scale. The study subjects consisted of 787 adults in a community. The data was collected during the period from Oct. to Dec., 1995 and analyzed as Cronbach α, item correlation with total, Pearson correlation and factor analysis with varimax rotation using SAS. Results were as follows : The mean SCS score for this sample was 17.2 and there were statistical differences for gender(men, 13.1 ; women, 20.0) on the SCS scores. The cronbachα of SCS with 36 items was .74 and when simplified with 30 items, it's coefficient alpha was .78. The translated content of the SCS was validated by two nursing faculty members and one professor of psychology. Factor analysis revealed the most parsimonious structure was obtained when six factors were extracted and subsequently rotated via the varimax criterion. There was 40.2% of total communality variance in the SCS with 36 items. The total communality variance was slightly increased to 43.4% with 30 items of the SCS. In order to reduce from 36 items to 30 items, the process excepted 6 items having low item correlation with total and low MSA(means of sampling adequacy) of factor analysis. According to factor analysis, there are six factors such as emotion control, impulse control, self-efficacy, coping with problems, pain control and satisfaction control, The SCS was found to have low, but statistically significant, correlations with social desirability and helplessness. From the above results, it can be concluded that the reliability of the SCS(inherent and simplified) was a acceptable level and its validity was reasonable when comparing it with other validity studies. To determine the usefulness the simplified scale, further study is necessary to simultaneously compare and analyze both scales for stability.

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Development and Evaluation of Allergic Rhinitis-Specific Quality of Life (ARSQOL) Scale for Adults (성인 알레르기비염 특이형 삶의 질 측정도구 개발 및 평가)

  • Lee, Hye-Sook;Park, Eunok
    • Journal of Korean Academy of Nursing
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    • v.46 no.5
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    • pp.675-686
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    • 2016
  • Purpose: The purpose of this study was to develop an Allergic Rhinitis-Specific Quality of Life (ARSQOL) scale and verify its validity and reliability. Methods: ARSQOL was developed in 5 steps. Items for the preliminary instrument of ARSQOL were developed through a literature review and deep interviews with allergic rhinitis patients. Face validity with Content Validity Index (CVI), construct validity using factor analysis, and known group comparison, criterion validity test using correlation between ARSQOL and total nasal symptoms score (TNSS) were conducted to evaluate the validity of ARSQOL. Cronbach's ${\alpha}$ was used to evaluate the reliability of ARSQOL. Results: CVI for the items in the final ARSQOL were. 92. Five factors including discomfort associated with nasal symptoms (4 items), physical function (7 items), mental function (5 items), sleep disorder and social function (4 items), and problems of daily life (6 items) were identified through factor analysis and these five factors explained 66.6% of the total variance. The correlation coefficient between TNSS and the total score of life quality was -.69. In the group comparison, the persistent allergic rhinitis group showed lower ARSQOL scores than the intermittent patient group, and moderate to the severe allergic rhinitis patient group presented poorer ARSQOL than the mild symptom patient group. The Cronbach's ${\alpha}$ reliability coefficient was .95. Conclusion: Results show that the ARSQOL has good reliability and validity and thus ARSQOL is a useful scale for clinical practices and research as a measure of quality of life in adults with allergicr hinitis.

A Study on Degree of Importance in Nursing Activities for the Quality of Nursing (질적간호 제공을 위한 간호업무 중요도에 관한 조사연구)

  • 홍춘실;김종임
    • Journal of Korean Academy of Nursing
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    • v.14 no.2
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    • pp.19-27
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    • 1984
  • This study was carried out for the purpose of investigating the degree of importance in nursing activities for the quality of nursing, and was conducted with 72 nurses and 69 patients in Chungnam National University Hospital from January to April, 1984. The results are as follows; 1. The mean importants score in physical care activities of the patients (2.58) is higher than that of the nurses (2.48). There is not significant difference for the mean important score in physical care activities between the patients and nurses (t=0.637, df=139, p>0.05). 2. The mean important score in psychological aspects of activities of the patients (2.94) is higher than that of the nurses (2.44). There is a significant difference for the mean important score in psychological aspects of activities between the patients and nurses (t=2.338, df= 139, p<0.05). 3. The mean important score in observation, recording and implementing medical care activities of the nurses (2.98) is higher than that of the patients (2.79) There is not significant difference for the mean important score in observation, recording and Implementing medical care activities between the patients and nurses (t=1.329, df=139, p> 0.05) 4. The mean important score in nursing management activities of the nurses (2.63) is higher than that of the patients (2.57). There is not significant difference for the mean important score in nursing management activities between the patients and nurses (t=1.329, df=139, p>0.05). 5. A number of items in nursing activities considered most important by nurses (Mean important score of 3.0 or above) were 12 items. The most importants item was“shift and exchange of information concerning patient”. 6. A number of items in nursing activities considered most important by patients (mean important score of 3.0 or above) were 14 items. The most important item was“Explain about diagnostic test ahead of time”. 7. A number of items in nursing activities considered least important by nurses and patients(Mean important score less than 1.9) were 5 items and 2 items, respectively. The least important item by nurses was“plan some diversion or recreation for patient”, and the least important item by patients was“Give a bed shampoo”.

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Factor Analysis of the Seawater Quality of the Southern Coastal Waters of Korea

  • Lee Yong-Hwan;Jung Kyoo-Jin;Kim Hak-Kook
    • Fisheries and Aquatic Sciences
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    • v.6 no.3
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    • pp.140-148
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    • 2003
  • On the basis of factor analysis, stations were grouped according to their similar characteristics of seawater quality. The data for factor analysis were collected from the 15 stations from Dukryang Bay to Ulsan Bay on the southern cost of Korea. The study was based on the data from 1991 to 2000. The 8 water quality items analyzed were temperature, salinity, pH, DO, COD, DIN (dissolved inorganic nitrogen), DIP (dissolved inorganic phosphorus), and SS (suspended solid). Analysis of 6 water quality items including DO with the exception of temperature and salinity showed that 15 stations were grouped into two zones, i.e., the western and the eastern coast, by the axis of Samcheonpo-Jinju Bay-south of Geoje, 3 seawater zones in all. The adjacent stations to the southward or northward but not those to the eastward or westward were classified into the same group. On the analysis of all of the 8 water quality items, the stations of Dukryang Bay and Goheung; and those of Onsan and Ulsan Bay were classified into the same group. Yeosu and Namhae stations were sectioned into 1 group on the all seawater quality items but DIP, Samcheonpo and south of Geoje stations another group on all seawater quality items but water temperature, and Masan and Busan stations in the other group on all seawater quality items but DO. The stations from Dukryang Bay through Goheung to east of Geoje were grouped together on the COD item, and this showed somewhat different tendency in other seawater quality items.

A Study on the Development of the Questionnaire for Pattern Identification of Liver-qi Stagnation Infertility (간울형 불임 변증 설문지 개발 연구)

  • Lee, Ji-Yeon;Baek, Seon-Eun;Park, Eun-Ji;Ahn, Soo-Yeon;Lee, Da-Hee;Ha, Ki-Tae;Yoo, Jeong-Eun
    • The Journal of Korean Obstetrics and Gynecology
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    • v.31 no.2
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    • pp.68-79
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    • 2018
  • Objectives: The aim of this study is the development of the questionnaire for pattern identification of Liver-qi stagnation infertility. Methods: We conducted a literature review and retrieved the symptoms and diagnosis from Korean and Chinese literatures which mentioned pattern identification of Liver-qi stagnation infertility. Based on the findings, We conducted three times expert Delphi surveys on selection of question items and determination of weight. Results: 12 questionnaire items for subjects and 4 questionnaire items for researchers were selected from 19 references. From expert delphi surveys, we finally determined 14 questionnaire items (10 items for subjects, 4 items for researchers) which are clinically significant and obtained weight of question items. Conclusions: Questionnaire for pattern identification of Liver-qi stagnation infertility was developed through experts' discussion. Further study is required to identify the validity and reliability of this pattern identification instrument for Liver-qi stagnation infertility.

Development of an Instrument to Measure Organizational Socialization of New Clinical Nurses (신규간호사의 조직사회화 측정도구 개발)

  • Sohn, In Soon;Kim, Hyo Sim;Kwon, Jeong Soon;Park, Dar Lee;Han, Yong Hee;Han, Sang Sook
    • Journal of Korean Clinical Nursing Research
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    • v.14 no.1
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    • pp.85-97
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    • 2008
  • Purpose: This study was conducted to develop an organizational instrument on socialization for new graduate nurses in the workplace, and to test its reliability and validity. Method: A methodological design was used to develop the instrument. Data were collected from new clinical nurses in 188 hospitals nationwide in Korea. In the first stage, 159 items were developed through a literature review. In the second stage, seven experts conducted a content validity test and the number of items was reduced to 155. In the third stage, factor analysis was performed to analyze the data collected from 198 nurses in 8 hospitals using the modified instrument. A total of 65 items were included and a five-point Likert scale was used. In the fourth stage, the final evaluation instrument was finalized as comprising 11 factors in 7 domains, using 39 items developed from analysis of the data collected from 1,410 nurses using the 40 items. It was comprised of 11 factors in 7 domains. The SPSS 11.0 windows program was used. Results: Accumulated variation for the 11 factor-39 items nurse organizational instrument on socialization was 67.22%. The results of the reliability test indicated that Cronbach's coefficient for the total 39 items was over 0.97. Conclusion: The instrument developed in this study has a high degree of reliability and validity.

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