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The sensitivity analysis for ergonomic checklists associated with musculoskeletal disorders (근골격계질환 위험도관련 주요 평가도구들에 대한 민감도 분석)

  • Im, Su-Jung;Choi, Soon-Young;Park, Dong-Hyun
    • Proceedings of the Safety Management and Science Conference
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    • 2011.04a
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    • pp.319-328
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    • 2011
  • It has been very important to have an exact evaluation for risk factors in order to prevent MSDs(Musculoskeletal Disorders). However, most MSDs evaluation checklists have always been some problems of possibilities associated with subjective evaluation. Therefore, this study tried to conduct a sort of sensitivity analysis on three major evaluation checklists(OWAS, RULA, REBA). Specifically, major subjects in the study consisted of three parts as follows; comparison of the results between experienced and inexperienced subjects, analysis for the consistency of the results in terms of different evaluation times. The results of the study were summarized as follows; 1) There was statistically significant difference of the results by RULA and by REBA between experienced and inexperienced subjects. This might due to the fact that experienced subjects have had better ability to detect the bad working posture during evaluation. However, the results by OWAS did not give any significantly different results between experienced and inexperienced subjects., 2) All three checklists showed significantly different results in terms of different evaluation times. Further study on this subject would eventually provide a sophisticated evaluating guidelines for MSDs regarding determination of subject-specific evaluation, identification of repetitive number of evaluations for stable results for each checklist, determination of job-specific evaluation methods, and so on.

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The Survey on Food Habits of Boy Students Living in Jeonbuk Region (전북 일부지역의 남자 중${\cdot}$${\cdot}$대학생의 식습관 조사)

  • Chang, Hye-Soon;Kim, Mi-Ra
    • Korean Journal of Human Ecology
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    • v.5 no.1
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    • pp.71-84
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    • 2002
  • The purpose of this study was to investigate food habits of boy students and to know the difference in food habits between boy and girl students. A previous study had been conducted to girl students in 1998 and this study was carried to boy students in Oct. 2000 using the questionnaires. The subjects were 783 boy students in middle school, high school and university students living in Jeonbuk region. The average score of food habits was $4.09{\pm}1.72$ out of a possible 10(middle school students were $4.96{\pm}1.85$, high school students were $4.17{\pm}1.61$ and university students were $3.15{\pm}1.70$). The average is similar $4.11{\pm}1.63$ to girl students in 1998. The correlation coefficient between the score of food habits and standard of living, present residence, taking nutritional supplements, and sort of school was positive. As a staple food, cooked rice was preferred 95.9% of subjects and this result is similar to girl students of previous study. The most preferred side-dishes was different between girl and boy students. Boy students liked stew the best, but girl students liked Kimchi the best. The most preferred snacks was fruits and fruit juice. The portion of eating cooked rice in boy students (87.8%) was decreased than girl students(90.6%) at breakfast. The main meal to have soup & stew was supper and the most delicious meal was also supper, but primary meal skipped was breakfast. The reasons for skipping breakfast were lack of time(38.7%) and no appetite(17.6%), skipping lunch was missing a time to eat(8.4%), and skipping supper was no appetite(10.5%). Substitution food on no preparation of lunch basket was difference between middle and high school students and university students. Middle and high school students ate noodles and university student ate cooked rice. The preference of snack was that chicken(20.3%) was the best. The time of eating snacks was that anytime(38.6%) was the first, after supper(13.7%) was next. In order to improve the nutritional status of boy students, they must establish good food habits by eating three regular meals per day and balancing their diet. Especially university student must build their regular life style, so they would have three regular meals.

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A study on the Form of Sijo seen from Various Aspects (다각적 관점에서 본 시조 형식 연구)

  • Im, Jong-Chan
    • Sijohaknonchong
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    • v.30
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    • pp.147-164
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    • 2009
  • The conclusion of this paper is as follows. First, the authentic syllable count of sijo can be summed up as following: Second, the structure of the statement can be summed up as following: 1) Each statement extremely excludes the use of modifiers to clarify the development of the logic. 2) The meaning of each of the three statement, chojang (the 1st statement), jungjang (the middle statement) and jongjang (the last statement), is connected to the previous one closely, so the text as a whole is perfect. 3) The last statement identifies itself as the conversion or conclusion of the whole text. Therefore, the last statement should begin with a connective adverb like 'Therefore' or 'Then'. But in ancient sijo works, this sort of connected adverb is normally omitted. 4) Each statement of sijo is composed of one of the 4 structures suggested below: a) subjective phrase + predicative phrase b) the formal clause + the latter clause c) location-indicating phrase + sentence d) objective phrase + predicative phrase Since the text of a sijo work is formed like this, sijo is said to be composed of three jang (statement) & six gu (phrase), which is the very feature that proves that sijo is a fixed form of verse.

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On the Homotoneity of Species Composition in the Phytosociologically Synthesized Community Tables (식물사회학적 식생자료의 종조성 균질성에 대하여)

  • Kim, Jong-Won;Eom, Byeong-Cheol
    • Korean Journal of Environment and Ecology
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    • v.31 no.5
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    • pp.433-443
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    • 2017
  • Securing the species compositional integrity (typicalness and representativeness) is the essential prerequisite for an integrated management of vegetation resources using the phytosociological $relev\acute{e}s$ and plant communities of the Z.-M. school. This study is intended to develop a tool for qualitative and quantitative evaluation of species compositional homotoneity of a set of $relev\acute{e}s$ per syntaxon. The new homotoneities, actual homotoneity ($H_{act}$), and optimal homotoneity ($H_{opt}$) taking into account the heterogeneous factors of $relev\acute{e}s$ are proposed. The correlations between the floristic variables such as the vegetation type, the new homotoneities, and the previously studied homogeneous measures (e.g. Pfeiffer's homogeneity, basic homotoneity-coefficient, corrected homotoneity-coefficient, and mean floristic similarity) are analyzed by using Spearman's rank correlation coefficient. $H_{act}$ and $H_{opt}$ are effective in determining the difference of inter-synthesized units and of inter-$relev\acute{e}s$, respectively. $H_{act}$ is the homotoneity that is the most independent of the number of $relev\acute{e}s$. On actual vegetation with long-term human impact in the Korean Peninsula, $H_{opt}$ has become an aid to the more precise understanding of $H_{act}$ as substantive homogeneousness of species composition of syntaxa. It is expected that $H_{act}$ and $H_{opt}$ can be used for the selection of a sort of homogeneous vegetation data to build a phytosociological $relev\acute{e}$-database with consistency and objectiveness for national vegetation resources.

Studies on the Highly-phosphorylated Nucleotides during the Differentiation of Aspergillus niger (검정곰팡이의 분화(分化)에 따르는 균체내(菌體內)의 고인산(高燐酸)뉴크레오티드의 소장(消長)에 관한 연구(硏究))

  • Kim, Jong-Hyup
    • The Korean Journal of Mycology
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    • v.10 no.2
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    • pp.57-65
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    • 1982
  • Highly phosphorylated nucleotides were investigated to assure whether the eucaryotic Aspergillus niger produce these substances or not during the differentiation. Investigation was extended to see how organic phosphate interacts with inorganic polyphosphate during development, and high molecular weight RNA-polyphosphate complex was detected in 2.6% polyacrylamide gel by electrophoresis. Guanosine tetraphosphate was found in vesicle and phialide forming mycelia and spore forming body by PEI cellulose TLC. It is revealed that guanosine tetraphosphate is a common substance for spore formation in eucaryotic microorganisms as well as in procaryotic. Especially, prior to sporulation, protein bound RNA and protein bound phosphate may occur as a result of reorganization of cellular materials. The evidence was obtained by the fact of differential increase of optical density ratio between the samples from different developmental stages of this fungus. In 2.6% polyacrylamide gel which was run to electrophoresis, high molecular weight RNA (mostly rRNA) was found to couple and to make RNA-polyphosphate complex. The complex was examined with enzymes and radioactive isotope of $^{32}P$. (enzymic test was not reported here.) RNA-polyphosphate complex might be another sort of highly phosphorylated nucleotide or rRNA beside guanosine-tetraphosphate.

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Job Analysis of Fashion Model's (패션모델의 직무분석)

  • Yang, Eui-Sik;Yang, Hae-Sool
    • The Journal of the Korea Contents Association
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    • v.8 no.9
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    • pp.101-114
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    • 2008
  • This study has been carried out in an effort to bring light on the job scope which is required among the fashion models in Korea, then to sort out the concrete items of job pursuant to the job scope for the systemization of them. For this study, ten models who majored a fields of industry and the college in Korea, have gathered to analyze the job of the fashion models using the DACUM. As a result of it, the jobs of the fashion models have been classified into 7 duties and subsequent 86 tasks, while the fashion models entry jobs have been divided into 32 tasks(37.21%) that are necessary in the college before appointment. The result of analysis which investigates the relation between the significancy, the degree of difficulty and the frequency of the business, has it that the number of high-significancy business rises to 46 tasks(53.49%), high degree of difficulty business reaches to 21 tasks(24.41%), high frequency business is 18 tasks(20.93%), high degree of significancy and difficulty business stands at 13(15.12%), high significancy and frequency business amounts to 16 tasks(18.60%), and high degree of significancy, difficulty and frequency business reaches to 7 tasks(8.14%) respectively. These results should be actively reflected on the college curriculum before appointment, and on the job retraining courses for the incumbent fashion models, so as to enhance their job competency.

The origin and development process of laver culture industry in Korea -1. Laver culture history till the end of Chosun dynasty- (우리나라 김양식업의 발상과 발달과정 -1. 조선왕조말엽까지의 김양식사-)

  • BAE Su-Hwan
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.24 no.3
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    • pp.153-166
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    • 1991
  • Laver is sea weeds that might have been eaten by Korean people since ancient times. The begining of laver culture is not known exactly, but it appears to be prehistoric age. Some laver culture complexes have been built in southern coastal sea of Korea around 1910. This paper was considered about the origin and development process of Korean laver culture industry by investigating Korean and Asian old books concerned. The results are as follows. 1. According to the Korean old books ralated, the name of laver is classified into 10kinds. Gim and Hae-I were called by Korean. Gim means weeds and Hae-I means the manufactured laver by cutting and drying like paper sheet. Ja-Chae and Hae-Tae are come from Chinese, however they are commonly called by Korean, Japanese and Chinese. Rest six names are come from Chinese botany. 2. As Chinese used laver as medicine for wen, scrofula, fever, vomiting, diarrhoea and. so on, they didn't regard it as foods and took into account an warning by Chinese botany that they could take ill when overeating it. On the other as Korean people have eaten it with pleasure nevertheless the Chinese warning, various foods using laver have been developed. The typical food is rice covering laver sheet. It is also popular to Japanese. 3. Laver culture can be carried out in all coastal seas around Korean peninsula, the best sea area for it is the middle west of south sea. 4. Seopkkoji type is a laver culture method that when branches of tree are put in tidal flat laver sporules are attached and gronm on them. It was begun by Hae-Jak Kun(a group of fishery slaves) on Kwang-Yang bay the most suitable for. laver growth at the beginning of King $Sung-long(1469{\~}1481)$. It is assumed that when Hae-Jak Kun set Oe-Jeon(a sort of fixing fishing gear) to catch tributary fish for king, they could find grown laver attached on Oe-Jeon and invent Seopkkoji type for exclusive laver culture. That was carried out 200 fears earlier than in Japan. Dde-Bal type is more advanced and productive laver culture method with thinly spilt bamboo tied like screen(one end fixed on bottom and other end set free in water), It is assumed that Dde-Bal type was begun in Wan-Do county in King Chull-Jong(1830). All laver culture methods developed were transfered to Japan.

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An Analysis of the Course Fulfillment Change in Fisheries Business Administration Curriculum with Business Education Accreditation (경영교육인증에 따른 수산경영학 교과과정 및 학업이수의 변화 분석과 과제)

  • Lee, Dong-Ho
    • The Journal of Fisheries Business Administration
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    • v.45 no.2
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    • pp.39-59
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    • 2014
  • Recently the rapid changes of the social environment make both university and every each department should have to renovate and adjust all of the educational components. The most dominant and issuable change of business administration education is the Business Education Accreditation which was certified by the KABEA(Korean Association of Business Education Accreditation). And the only two department of fisheries business administration which in Gyeongsang National University and Pukyong National University has been accredited recently. Though The department of fisheries business administration in Korea has been influenced by that Accreditation, there is few research and analysis on educational change. So it is very important that research on the curricular constitution and change of the curriculum for considering the its own effect and influence. This paper aims to explore the curricular constitution, change and course fulfillment of fisheries business administration after the business education accreditation based on the case of the department of fisheries business administration in Gyeongsang National University. The analysis of fisheries business administration change will help develop sustainable curriculum and give more guideline for identifying the core of fisheries business administration. The method of analysing that in this research has adopt the social network analysis(SNA) and automated software tool which is the most dominant technique in contents analysis including the Krkwics and Pajek. The SNA is evaluated that most popular, rigorous and firm methodology for analyzing, examining and revising some concepts or objects in the context of semantics. The result of this study shows that the ratio of fisheries business administration class has been decreased but still the most fulfilled course. And English mediated class has been avoided though that sort of the class has been increased. In the view point of course fulfillment, it has been potential and inefficient problems that some classes that including financial related and accounting related class would not been accomplished appropriately. The findings of a graduate depth interview which has been done about 4 years for understanding that student show that there's some recognition gap of fisheries business administration in staffs of human resource management. And the level of job satisfaction in fisheries business still somewhat low and even worse the chance of recruitment also unsteady.

Media Role in the Transition and Consolidation Period of Democracy: A Comparative Study of Korea and Spain (민주주의의 이행 및 공고화 과정에서 미디어의 역할: 한국과 스페인의 비교)

  • Cho, Hang-Je
    • Korean journal of communication and information
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    • v.18
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    • pp.269-303
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    • 2002
  • This article presents a historical account of media role in the transition and consolidation period of democracy. Despite the assumption that media plays a important role in the construction of democracy, it is less clear how the media can affect the process of political change itself. This article seeks to answer some of these question, based on the Mill's macro-social comparative 'method of difference' of Korea and Spain. It is widely agreed that both states achieve democracy through transaction from above(pacts). Media role, however, differs significantly in accordance with authoritarian legacies and civic representativeness of the pacts. Whereas Korean dailies is deepening given market oligopoly and prior practices after democratization, Spain dailies market entirely changed in both structural and spiritual respects. As a result, Korean dailies substantially lacks in civic representativeness as before, contrary to Spain. Spain television settled a sort of the external pluralism. Korean television is pursuing the BBC type of internal pluralism. In Korea, television is more commercial than Spain. Consequently, Spain media serve the consolidation of democracy more than Korea on the whole.

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Analyzing the Influence of Digital Textbook Use for Potential Risk Group of Internet Addiction and Average Group (디지털교과서 활용이 인터넷 중독 잠재적 위험군과 일반 사용자군에게 미치는 영향의 차이 분석)

  • Ahn, Seonghun
    • Journal of The Korean Association of Information Education
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    • v.19 no.4
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    • pp.431-440
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    • 2015
  • The purpose of this study is to analyze the influence of digital textbook use for potential risk group of internet addiction and average group. For this, I selected two samples. One was a group to use digital textbook at school, the other was a group not to use that. Then each potential risk group of internet addiction were sort out in two groups by a test of internet addiction. I firstly compared a average user group and a potential risk group of internet addiction in group to use digital textbook. Also, I too did that in group not to use digital textbook. Then I analyzed the relevance of using digital textbook and internet addiction. As a result, I found that using digital textbook have not the relevance with internet addiction. But in this paper, I proposed a way to teach ICT ethical training before students use the digital textbook, because most of potential risk students of internet addiction tend to think they was influenced by digital textbook.