• 제목/요약/키워드: contributive

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서울지역 대기 중 다환방향족탄화수소의 발생원별 기여도 평가 (Contributive Estimation of Polycyclic Aromatic Hydrocarbons by Emission Source in Seoul Area)

  • 박찬구;윤중섭;어수미;신정식;김민영;손종열;모세영
    • 한국대기환경학회지
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    • 제22권3호
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    • pp.287-295
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    • 2006
  • PAHs (Polycyclic Aromatic Hydrocarbons), one of the carcinogenic materials in environment, were investigated in this study. The standardized analysis conditions were tested, and then various factors which affect to the ambient PAHs concentration in Seoul were estimated. Moreover, the emissions of PAHs from major stationary sources were investigated to determine the quantitative relationships between ambient PAHs concentrations and emission sources. From the factor analysis, three factors relevant to the ambient PAHs in Seoul were found. Factor 1 was related to the concentrations of chrysene, pyrene, indeno (1, 2, 3-cd)pyrene, benzo[b]fluoranthene, benzo[k]fluoranthene, and benzo prerylene which were mainly emitted from gasoline and diesel fueled cars. Factor 2 showed higher loadings in phenanthrene and anthracene which were due to LNG and BC oil combustion in industry and home. And factor 3 included dibenz(a, h)anthracene and acenaphthene which were emitted from open burning and municipal solid waste incineration. Conclusively, all of three factors were consisted in 82% of total variance. The contribution of mobile sources in ambient air in Seoul was estimated at 64%, that of industrial and home sources at 17%, and that of open burning and municipal incineration at 1%.

Skeletal Manifestations of Hydatid Disease in Serbia: Demographic Distribution, Site Involvement, Radiological Findings, and Complications

  • Bracanovic, Djurdja;Djuric, Marija;Sopta, Jelena;Djonic, Danijela;Lujic, Nenad
    • Parasites, Hosts and Diseases
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    • 제51권4호
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    • pp.453-459
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    • 2013
  • Although Serbia is recognized as an endemic country for echinococcosis, no information about precise incidence in humans has been available. The aim of this study was to investigate the skeletal manifestations of hydatid disease in Serbia. This retrospective study was conducted by reviewing the medical database of Institute for Pathology (Faculty of Medicine in Belgrade), a reference institution for bone pathology in Serbia. We reported a total of 41 patients with bone cystic echinococcosis (CE) during the study period. The mean age of 41 patients was $40.9{\pm}18.8$ years. In 39% of patients, the fracture line was the only visible radiological sign, followed by cyst and tumefaction. The spine was the most commonly involved skeletal site (55.8%), followed by the femur (18.6%), pelvis (13.9%), humerus (7.0%), rib (2.3%), and tibia (2.3%). Pain was the symptom in 41.5% of patients, while some patients demonstrated complications such as paraplegia (22.0%), pathologic fracture (48.8%), and scoliosis (9.8%). The pathological fracture most frequently affected the spine (75.0%) followed by the femur (20.0%) and tibia (5.0%). However, 19.5% of patients didn't develop any complication or symptom. In this study, we showed that bone CE is not uncommon in Serbian population. As reported in the literature, therapy of bone CE is controversial and its results are poor. In order to improve the therapy outcome, early diagnosis, before symptoms and complications occur, can be contributive.

환경콜라주 제작수업이 영재학생들의 환경인식에 미치는 효과 (The Effect of Environmental Collage Making Class on Environmental Perception of the Gifted students)

  • 김순식
    • 한국환경과학회지
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    • 제19권8호
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    • pp.1067-1076
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    • 2010
  • How would environmental education be implemented for effectiveness today? Deep reflection on the way of teaching environment in classes to achieve effectiveness is required. If there exist differences in students' environmental perception depending on environment class pattern, its most effective way should be looked for. In environmental education, inducing the students to have advisable attitude voluntary about environment is more important than teaching them environmental knowledge. From such view, students' active participation is necessary for successful environmental classes. Students need to be set to share their principle, values, attitude about environment problems at environmental class through presentation which is important factor to make them have advisable environmental attitude. Therefore, environmental class need to be carried out student-led way. For that, a class model need to be designed which will be helpful for the students to arrange and elaborate their emitting thought about environment problems through disclosing their thoughts to share them with fellow students which will end up in their advisable environmental attitude. This study aimed to find out the effectiveness of environmental collage making class contributive to offering various environmental perception to students and grasping others' thinking about environment. Fifty-eight 10th graders at U Science High School in Ulsan metropolitan city were selected for the study that carried out from 2010 April to June by choosing total 10 environmental themes divided into environmental collage making class applied to the 30 test group students, and general environmental class applied to 28 control group students. Following are the study results. First, in students' environmental sensitivity, the students in the environmental collage making class appeared to be higher compared with them in general environmental class. Second, in students' intentional environment action, the students in the environmental collage making class appeared to be higher compared with them in general environmental class. Third, in students' satisfaction with environmental class, the students in the environmental collage making class appeared to be higher compared with them in general environmental class.

도시 이미지에 대한 지구 이미지의 기여수준 분석 - 부산시를 중심으로 - (The Analysis of Attributive Level of District Image for City Image - Focus on Busan City -)

  • 변재상;최형석;신지훈;조예지;김송이;임승빈
    • 한국조경학회지
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    • 제35권1호
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    • pp.59-68
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    • 2007
  • This article statistically analyzed contributive levels of district image based on an effect and a similarity index through the evaluation of citizens and suggested the efficient management system of a city image according to the results. For this study, Busan City was selected as a case city by the preceding literature and was investigated concerning district image and city image through a questionnaire. The new evaluation method for analysis of a city image was presented in this process. The results of this research are as follows: 1. Busan City has a substantial positive and culturally unique image, and each of its districts have other image characteristics. for example, the CBD district has a positive image, and the sea shore district has a busy and prosperous image, but the backward sea shore district has an image of stagnancy. 2. The image of Yeonje-gu has the largest effect on the image of Busan. Next in influence are Jung-gu, Saha-gu, Suyoung-gu, respectively. The effect index is closely connected with the variance of evaluative adjectives. 3. Busanjin-gu and Haeundae-gu have similar images to Busan City. Next in similarity are Nam-gu, Jung-gu, Youngdo-gu, Suyoung-gu, respectively. The similarity index is closely connected with the correlation of evaluative adjectives. Busan City and its districts can establish their image strategies with the above analyzed results. This study is meaningful in that a statistical evaluative method was proposed. With continued follow-up research, this study may serve as a systematic and logical model to improve the urban landscape and image.

초음파(超音波)를 이용(利用)한 담낭결석(膽囊結石)의 보험의학적(保險醫學的) 소견(所見) (An Opinion on Cholelithiasis by Ultrasonography in Life Insurance Medicine)

  • 문수형;김수희;김강석
    • 보험의학회지
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    • 제2권1호
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    • pp.182-194
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    • 1985
  • Cholelithiasis, one of the digestive, disease is one of the subject to have to be solved in the medical field because it is very important health problem in clinic and gives people much pain. The formulative process of gall stone is not certainly known yet, but an approach to the size, location, bile sludge of gall ston and the existence of pus is very contributive to the cure and prediction of the disease. As above, the early diagnosis of gall stone is very important. A few study on the possessing rate of gall stone in normal Korean Group is reported. But no report has submitted to the Korean Life Insurance Medical Association until now. We, the Medical Dept. of Dae Han Kyouk Life Insurance Co. Ltd., practiced ultrasonic examination for the recent 17 months and obtained 84 data of gall stone potency out of 4201 examples. We analyzed them on the basis of sex, age, gall stone incidence rate and the results are as follows; 1) The possessing rate of gall stone in female showed 1.22 times higher than in in male. 2) The older the medical examined group grow, the more the frequency of gall stone incidence increase regardless of sex. 3) Our report coincides with foreign one in sex and age, but in total gall stone incident frequency our country has 2%, which is much less than foreign one.

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수면의학(睡眠醫學)에 있어서 지필(紙筆) 척도(尺度)의 활용(活用) -과도한 주간 졸음과 일주기리듬의 평가를 중심으로- (Usefulness of Various Questionnaires in the Assessment of Excessive Daytime Sleepiness and Circadian Rhythm)

  • 김무진
    • 수면정신생리
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    • 제1권2호
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    • pp.125-144
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    • 1994
  • 수면의학에서 사용되는 여러 설문지 검사중 과도한 주간졸음과 일주기리듬의 평가를 위한 것들을 소개하고 그 장단점과 특성을 검토하였다. 임상수면의학, 산업의학, 혹은 역학조사에서 이러한 지필척도의 활용이 요구되고 있으나 아직 객관적 타당성이 충분히 검토되지 못했으므로 추후연구가 요구된다. 타당성을 제고할 임상, 혹은 교대근무상황에서의 연구가 더욱 확장되어야 할 것이다.

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한국전통간장의 맛과 향에 관여하는 주요 향미인자의 분석(III) -향기성분 분석 - (Analysis of Significant Factors in the Flayer of Traditional Korean Soy Sauce (III) - Aroma Compound Analysis -)

  • 박현경;손경희;박옥진
    • 한국식생활문화학회지
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    • 제12권2호
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    • pp.173-182
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    • 1997
  • This study was carried out in order to investigate effective aroma components of Korean traditional soy sauce. Volatile aroma compounds were extracted by solvent extraction, TMS esterification of methyl acetate extracts and SDE, and analyzed by GC/MSD. 140 voltile aroma compounds were detected by three different extraction methods. Most abundant volatile compounds were acids and phenols and identified aldehydes, hydrocarbons, ketones, furans, furanone, alcohols, esters, nitrogen compounds, sulfur compounds and thiazoles, too. In the analytical sensory evaluation of soy sauce aroma, there were significant differences between each soy sauce sample in all test item. To sum up, Sweet odor was high in Kyupjang. Nutty odor and traditional soy sauce odor were similarly high in Kyupjang and high concentration soy sauce. Kyupjang had high score in overall odor preference than Chungiangs. The result of multiple regression of soy sauce odor characteristics and gas chromatography pattern demonstrated that offensive and sour odor was affected by octadecanoic acid. Contributive compounds to sweet odor were 1,2-benzenedicarboxylic acid and 3,6-dioxa-2,7-disilacotane. Benzoic acid 4-methyl ethyl ester and nonacotane were identified as major compounds of nutty odor. Contribu live variables of traditional soy sauce odor were benzoic acid 4-methyl ethyl ester and 9,12-octadecadienoic acid. The main factors of odor preference were 3-methyl pentanoic acid, acetic acid, 2,6-dimethyl heptadecane and 3,6-dioxa-2,7-disilacotane.

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병원행정직원의 임금만족에 대한 연구 (A Study of the Satisfaction with Salary of the Clerical Staff in Health care Organization)

  • 김태성
    • 경영과정보연구
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    • 제8권
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    • pp.103-127
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    • 2002
  • In this study, satisfaction with salary of the clerical saff in health care organization was analyzed with a view to provide data contributive to efficient wage management for the clerical staff of hospitals. For the analysis, it was investigated if there is any difference in satisfaction with wage depending on the individual and environmental characters as well as comparative factors perceived by self or by others in-and outside the working place. The findings of the analysis may be summed up as follows: First, in support of the hypothesis that the satisfaction with wage of the clerical staff in hospitals will individual factors, statistically significant difference were found in the satisfaction with wage depending on age and career, but there was little significant difference depending on gender and education. Thus, the hypothesis I in this study can be partly adopted. Second, with regard to the hypothesis that the satisfaction with wage of the clerical staff in hospitals will vary with environmental variables, significant differences were found in terms of comparative factors perceived by self or by others inside the working place and those perceived by others outside the working place, and significant difference was also shown in the comparative factors perceived by others outside the working place. Whereas, however, there was no significant difference in the satisfaction with wage depending on the position, which led to the partial adoption of the hypothesis II. This study has following limits in search of difference in satisfaction with wage of clerical staff in hospital depending on individual and environmental variables: the sample is too small to represent the general wage level satisfaction of the whole health care organizations, since the survey hasn't covered the wage level and management of the employees in all hospitals; the professional attitude and rate of fluctuation that are closely connected with the wage level are not considered.

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공동주택 중량바닥충격음 현장측정을 통한 차단성능 평가방법의 비교검토 연구 (A Study of Rating Method Comparison for Heavy-weight Floor Impact Sound based on the Field Test Data in Apartment Houses)

  • 신훈;백건종;국찬;송민정;김선우
    • KIEAE Journal
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    • 제10권5호
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    • pp.187-194
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    • 2010
  • Heavy-weight floor impact sound insulation performance criteria have been effective in Korea since the regulation which enforces the standard thickness of slabs in domestic apartment houses should be constructed by 180mm or 210mm was adopted. But every slab does not satisfy this criteria. So, review on existing floor impact sound insulation performance is needed to propose some basic materials for the revision of rating method. To achieve this goal, 63 field test data were checked and analyzed. The results of this study are as follows ; 1) The 210mm thickness slab has the characteristics of deeper level decrease above 120Hz frequency band than that of 180mm thickness slab's. 2) 27.5% of 180mm thickness slabs were satisfied the floor impact sound insulation performance criteria, whereas 65% of 210mm slabs do. 3) Among the main contribution frequency bands for the determination of single rating index, 63Hz was shown as the most contributive band in 210mm slabs. 4) In comparison of single rating index between bang machine test and ball test. there is a big difference between the two and this phenomenon is frequent in 210mm slab results. 5) Rating Methods for the analysis of cross-correlation between the amount of rating, the usefulness of the arithmetic mean could be secured.

다크투어리즘과 관광경험의 진정성 - 동일본대지진의 재난관광을 사례로 - (Authenticity in Dark Tourism : A Case of Disaster Tourism after the Great East Japan Earthquake)

  • 조아라
    • 한국지역지리학회지
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    • 제19권1호
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    • pp.130-146
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    • 2013
  • 이 글은 다크투어리즘의 일환인 재난관광이 지닌 포스트모더니즘적 특성에 주목하여, 진정성 문제를 통해 이를 분석하는 것을 목적으로 하였다. 이를 위해 지난 2011년 발생한 동일본대지진을 구체적 사례로 선정하여, 재난관광의 전개 과정을 분석하였다. 재난 직후, 관광의 영역은 해체되고 일시적으로 재해 공동체가 형성된다. 이후 사회공헌형 관광이 등장하는데, 이 속에서 게스트(관광객)와 호스트(현지주민)는 모두 삶과 죽음의 문제를 공유하게 되고, 실존적 진정성은 관광동기와 경험에서 핵심요소가 된다. 그러나 시간이 지나면서 실존적 진정성은 재해재건의 정치경제적 맥락 속에서 이데올로기적으로 재편되고, 구성적 진정성으로 대체됨으로써 반근대적 성찰에 기반한 대안관광이라는 재난관광의 가능성에 한계가 나타나게 된다. 재난관광의 상품화 이면에 존재하는 윤리적 이슈를 고찰하기 위해서는 재난관광을 진정성 및 포스트모더니즘의 대안관광 틀 속에서 고찰하는 실증연구가 지속되어야 할 것이다.

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