• 대한치과기공학회지
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• 제35권2호
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• pp.157-171
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• 2013

Purpose: This study aims to present a database for the development of a healthcare management program based on the survey and analysis of self reported psychosomatic symptoms among the current dental technology students. Methods: Subjects of our study are 480 dental technology major students enrolled in a third year college located Gyeonggi, Chungcheong, and Gangwon province. Using a random sampling, we conducted a self-report survey from August 30, 2011 to October 28, 2011 and 418 reports were collected as feedback and we put an analysis on them. Results: 1. The average physical self symptom was 20.49, which is higher than the average mental self symptom(18.54). Of the subcategories of psychosomatic self symptom, we observed multiple subjective symptoms as the highest one(37.77), and aggression as the lowest(13.77). 2. As to gender, both physical and mental self symptom were statistically significant with the scale score of(p<.001). The scale score of subcategories is as follows; multiple subjective symptoms(I, p<.001), eye and skin(B, p<.001), digestive(C, p<.001), impulsiveness(H, p<.001), lie scale(L, p<.001), mental instability(J, p<.001), depression(K, p<.001), aggression(F, p<.001), irregularity of life(G, p<.001), mouth and anal(D, p<.05), nervousness(E, p<.05). 3. As for obesity, statistical significance was shown with the scale scores of physical self symptom(p<.001), multiple subjective symptoms(I, p<.001), digestive(C, p<.001), aggression(F, p<.001), depression(K, p<.01), irregularity of life(G, p<.01), respiratory(A, p<.05), eye and skin(B, p<.05), impulsiveness(H, p<.05), mental instability(J, p<.05). The scale scores in the environmental quality and life satisfaction were shown as follows; depression(K, p<.001), lie scale(L, p<.01), and irregularity of life(G, p<.05). 4. We employed multiple regression analysis to take account of general factors affecting psychosomatic self symptoms, and drew that the explanatory power of the model was proved with the scales of physical self symptom(4.1%) and mental self-symptom(3.6%). Obesity was a factor that affects physical self symptom with the scale score of(p<.01), and environmental quality and life satisfaction(p<.01) and obesity(p<.05) affect mental self symptom. Conclusion: In this analysis we observed obesity of dental technology students can influence their psychosomatic self symptoms. In this sense, it would be reasonable to develop a healthcare management and education programs that help the students maintain a healthy weight and promote their health.

• Asian-Australasian Journal of Animal Sciences
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• 제30권7호
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• pp.912-919
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• 2017

Objective: Identification of the candidate genes that play key roles in phenotypic variations can provide new information about evolution and positive selection. Interleukin (IL)-32 is involved in many biological processes, however, its role for the immune response against various diseases in mammals is poorly understood. Therefore, the current investigation was performed for the better understanding of the molecular evolution and the positive selection of single nucleotide polymorphisms in IL-32 gene. Methods: By using fixation index ($F_{ST}$) based method, IL-32 (9375) gene was found to be outlier and under significant positive selection with the provisional combined allocation of mean heterozygosity and $F_{ST}$. Using nucleotide sequences of 11 mammalian species from National Center for Biotechnology Information database, the evolutionary selection of IL-32 gene was determined using Maximum likelihood model method, through four models (M1a, M2a, M7, and M8) in Codeml program of phylogenetic analysis by maximum liklihood. Results: IL-32 is detected under positive selection using the $F_{ST}$ simulations method. The phylogenetic tree revealed that goat IL-32 was in close resemblance with sheep IL-32. The coding nucleotide sequences were compared among 11 species and it was found that the goat IL-32 gene shared identity with sheep (96.54%), bison (91.97%), camel (58.39%), cat (56.59%), buffalo (56.50%), human (56.13%), dog (50.97%), horse (54.04%), and rabbit (53.41%) respectively. Conclusion: This study provides evidence for IL-32 gene as under significant positive selection in goat.

• 한국식물학회:학술대회논문집
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• 한국식물학회 2002년도 춘계학술발표대회:발표눈문요지록
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• pp.62-72
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• 2002

This study has investigated the biosynthesis and function of the heavy metal binding peptides, the phytochelatins, in plants. PCs are synthesised enzymatically from glutathione by the enzyme PC synthase in the presence of heavy metal ions. Using Arabidopsis thaliana as a model organism cadmium-sensitive, phytochelatin-deficient mutants have been isolated and characterised in previous studies. The cadl mutants have wildtype levels of glutathione, are PC deficient and lack PC synthase activity. Thus, the CADl gene has been proposed to encode PC synthase. The CADl gene was isolated by a positional cloning strategy The gene was mapped and a candidate identified. Each of four cadl mutants had a single base pair change in the candidate gene and the cadmium-sensitive, cadl phenotype was complemented by the candidate gene. This demonstrated the CADl gene had been cloned. A homologous gene in the fission yeast, Schizosaccharomyces pombe was identified through database searches. A targeted-deletion mutation of this gene was constructed and the mutant, like cadl mutants of Arabidopsis, was cadmium-sensitive and PC-deficient. A comparison of the redicted amino acid sequences reveals a highly conserved N-terminal region Presumed to be the catalytic domain and a variable C-terminal region containing multiple Cys residues proposed to be involved in activation of the enzyme by metal ions. Similar genes were also identified in animal species. The Arabidopsis CADl/AtPCSl and S. pombe SpbPCS genes were expressed in E. coli and were shown to be sufficient for glutathione-dependent, heavy metal activate PC synthesis in vitro, thus demonstrating these genes encode PC synthase enzymes. Using RT-PCR, AtPCSl expression appeared to be independent of Cd exposure. However, at higher levels of Cd exposure a AtPCSl-CUS reporter gene construct appeared to be more highly expressed. Using the reporter gene construct, AtPCSl was expressed most tissues. Expression appeared to be greater in younger tissues and same higher levels of expression was observed in some regions, including carpels and the base of siliques. AtPCS2 was a functional gene encoding an active PC synthase. However, its Pattern of expression and the phenotype of a mutant (or antisense line) have not been determined. Assuming the gene is functional then it has clearly been maintained through evolution and must provide some selective advantage. This implies that, at least in some cells or tissue, it is likely to be the dominant PC synthase expressed. This remains to be determined

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제23권2호
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• pp.69-75
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• 2012

Objectives : The current study was conducted in order to investigate teachers' recognition of school bullying using a nationwide database of adolescents in middle and high school in Korea. Methods : Students in the 7th to 12th grades at 23 secondary schools participated in the current study during the fall of 2009. Subjects completed the self-report form of the Adolescent Mental Health and Problem Behavior Screening Questionnaire-II (AMPQ-II) and Symptom Checklist-90 Revised (SCL-90-R). In addition, relevant teachers used the teachers' rating scale of the AMPQ-II to report their students' status. Differences in the number of bullied students between teachers' recognition and students' report were explored. Results : A total of 2270 subjects provided relevant responses to the questionnaire. While the one-month prevalence of victimization according to students' self-reports was 28.9%, the recognized prevalence by teachers was only 10.6%. For prediction of the presence of school bullying according to students' self reports on the AMPQ-II, item 7 of the teachers' report on the AMPQ-II showed a sensitivity of 16%, a specificity of 92%, a positive predictability of 44%, a negative predictability of 72%, a false positive rate of 8%, a false negative rate of 84%, and an accuracy of 69%, respectively. No significant differences in subscores of students' self reports of the AMPQ-II and SCL-90-R were observed between bullied students who were recognized by teachers and those who were not recognized. In stepwise discriminant analysis, classification of teachers' item 2 and item 7 on the AMPQ-II with respect to school bullying according to students' reports showed an accuracy of 63.4%. Using this model, 75.2% of non-victimized subjects were classified correctly, while only 35.2% of victimized subjects were classified correctly. Conclusion : Despite the high prevalence in Korea, teachers' recognition of school violence among their students remains low. Pre-professional and continuing education to improve teachers' understanding of school bullying and knowledge of effective classroom-based prevention activities should be encouraged.

• 한국지리정보학회지
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• 제20권4호
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• pp.24-38
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• 2017

클라우드 컴퓨팅의 요소 기술과 응용 모델에 대한 관심과 수요가 증가하고 있고, 많은 정보시스템과 웹 서비스 분야에서 이를 적용하고 있다. 정보통신기술 발전은 공간정보 분야와 직접적인 관계가 있다. 공간정보 응용 서비스를 개발하는 경우 PaaS가 실질적인 클라우드 생태계 구축의 중요한 전제 조건이기 때문에 PaaS 기술에 대한 분석이나 적용 가능성을 먼저 분석할 필요가 있다. PaaS 클라우드는 데이터베이스 운영 및 관리, 애플리케이션 개발과 배포뿐만 아니라, 관련 확장 프로그램을 공유할 수 있게 한다. 그러나 국내외에서 PaaS를 기반으로 하는 공간정보 서비스 시스템 개발은 응용 및 연구 초기 단계이다. 이 연구에서는 현재의 클라우드 컴퓨팅 관련 내용을 개관하고 오픈소스 기반으로 PaaS 클라우드 기술의 핵심 요소인 컨테이너 방식을 공간정보에 적용할 수 있는 방안을 제시하고자 한다. 이 기술 요소들은 경제적인 클라우드 컴퓨팅 기술을 이용하고자 하는 국내 공간정보 산업계를 위한 적용성 및 확장성이 클 것이다. 이 연구 결과는 공간정보 응용을 위한 서비스 개발과 실험을 위한 기초 자료가 될 것으로 기대한다.

• 대한토목학회논문집
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• 제37권4호
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• pp.705-716
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• 2017

산업화 시대를 지나며 많은 환경오염문제가 발생함에 따라, 친환경적이며 지속 가능한 발전을 위해 건설 산업계에도 환경성 평가 관련한 다양한 연구가 수행되고 있다. 그러나 설계단계 활용을 목적으로 토목시설물의 부위별 설계 대안에 대한 신속한 환경부하 산정 방법론은 부재하다. 이에 본 연구는 Pre-Stressed Concrete (PSC) beam교량을 대상으로 구조물 주요 부위별 표준단면을 이용한 환경부하 산정을 위한 선행연구로서, 설계초기 단계에서의 대표물량정보 기반 환경부하량을 효율적으로 산정할 수 있는 설계부위 및 공종정보 기준을 구축하는 것을 목표로 하였다. 이를 위해 25개 PSC Beam교량 사례에 대한 상세설계자료를 기반으로 ISO 14040의 전과정평가(Life Cycle Assessment, LCA) 수행절차를 통한 상세환경부하량 데이터베이스를 구축하였으며, 목적 및 범위는 교량의 자원제조 및 수송단계와 시공단계만으로 한정하였다. 또한, 환경부하발생에 영향이 높은 부위별 대표공종을 선정하여, 이러한 부위 및 공종분류에 따른 소요자원 및 8대 영향범주 별 환경부하량 특성분석을 수행하였다. 그 결과 교량의 특성상 상부공이 전체 42.91%의 환경부하량으로, 상부공중에서는 주요 자재인 레미콘이 53.13%, PSC beam공이 31.25%로 나타났다. 또한, 하부 교대 교각공에서는 주요 자재인 레미콘, 철근, 시멘트가 93%이상으로 대부분을 차지하였다. 향후 이러한 교량 부위별 대표공종 및 자재 정보들은 설계단계에서 구조물의 특성이 반영된 개략 환경부하량 모델 구축시 활용될 수 있을 것이다.

• 콘크리트학회논문집
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• 제24권2호
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• pp.137-145
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• 2012

이 연구는 수산화나트륨과 탄산나트륨이 혼합된 알칼리 활성화제에 의한 고로슬래그 모르타르의 강도발현 특성을 파악하기 위한 연구이다. 주요 변수는 활성화제의 첨가량, 물-바인더비(W/B) 그리고 골재-바인더비(S/A)이다. 활성화제의 첨가량에 따른 강도 특성을 수산화나트륨 3%, 4% 및 탄산나트륨 4%~8%까지 조절하여 측정하였다. 물-바인더비는 0.45~0.60까지 그리고 골재-바이더비는 2.05~2.85의 범위 내에서 변화하며 측정하였다. 원재료의 주요 성분 및 수산화나트륨, 탄산나트륨에 포함된 산화나트륨($Na_2O$) 양에 따라 조합된 알칼리 품질계수($Q_A$)를 산정하고, 이를 적용하여 알칼리 활성 모르타르의 28일 압축강도 예측식을 제안하였다. 각 변수에 따른 시험값과 제안된 예측식을 통한 결과값은 오차범위 5% 이내의 범위에서 만족하는 것으로 나타났다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2007년도 추계 학술논문 발표대회
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• pp.109-113
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• 2007

This paper introduces a system, Simulation based Stochastic Markup Estimation System (S2ME), for estimating optimum markup for a project. The system was designed and implemented to better represent the real world system involved in construction bidding. The findings obtained from the analysis of existing assumptions used in the previous quantitative markup estimation methods were incorporated to improve the accuracy and predictability of the S2ME. The existing methods has four categories of assumption as follows; (1) The number of competitors and who is the competitors are known, (2) A typical competitor, who is fictitious, is assumed for easy computation, (3) the ratio of bid price against cost estimate (B/C) is assumed to follow normal distribution, (4) The deterministic output obtained from the probabilistic equation of existing models is assumed to be acceptable. However, these assumptions compromise the accuracy of prediction. In practice, the bidding patterns of the bidders are randomized in competitive bidding. To complement the lack of accuracy contributed by these assumptions, bidding project was randomly selected from the pool of bidding database in the simulation experiment. The probability to win the bid in the competitive bidding was computed using the profile of the competitors appeared in the selected bidding project record. The expected profit and probability to win the bid was calculated by selecting a bidding record randomly in an iteration of the simulation experiment under the assumption that the bidding pattern retained in historical bidding DB manifest revival. The existing computation, which is handled by means of deterministic procedure, were converted into stochastic model using simulation modeling and analysis technique as follows; (1) estimating the probability distribution functions of competitors' B/C which were obtained from historical bidding DB, (2) analyzing the sensitivity against the increment of markup using normal distribution and actual probability distribution estimated by distribution fitting, (3) estimating the maximum expected profit and optimum markup range. In the case study, the best fitted probability distribution function was estimated using the historical bidding DB retaining the competitors' bidding behavior so that the reliability was improved by estimating the output obtained from simulation experiment.

• 한국환경생태학회지
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• 제12권1호
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• pp.78-90
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• 1998

본 연구는 1980년대 후반부터 조성된 5개 신도시 공동주택단지의 완충녹지를 대상으로 녹지의 형태와 식재기법, 효과 등을 분석하여 완충녹지 조성시 배식에 이용할 수 있는 자료 구축을 목적으로 하였다. 연구대상지 완충녹지의 형태는 마운딩형, 사면형, 펴연형이었으며 식재된 수종으로는 교목은 상록수 10종, 낙엽수 20종의 총 30종이었고 관목은 총 13종 이었으며 도시공원 등의 관상용수종과 차이가 없었고 식재는 단층적으로 한 상태였다. 완충녹지에 의해 소음완화 효과는 인정되었으나 7개 조사유형중 4유형에서는 공동주택단지의 소음 기준치(65dB) 이하의 완충효과를 보이지 못했다. 소음완화효과는 마운드형이 효과적이었다. 본 연구대상지는 식재밀도, 녹지용적계수는 완충녹지의 기능을 충족시키지 못하고 있으며 자연림과 비교했을 때 식재밀도가 매우 적었고 녹지용적계수도 기준 녹지에 비해 션격히 낮은 값을 나타내어 개선이 요구되었다. 완충녹지는 높이를 2m 이상으로 한 마운딩형으로 조성지역 인근 자연림의 식생구조를 모델로 하는 복층적 식재기법을 이요하여 조성하는 것이 바람직한 것으로 판단되었다.

• 경영과정보연구
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• 제7권
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• pp.21-51
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• 2001

For increasing the competitiveness and efficiency of Korea's finance industry under the new e-finance paradigm, this paper compared the practical use of finance portal site' on service parts and stage between Korea and U.S.A.. The services which can be served from site are banking, mortgage and credit loan, stock, card, retirement tax, PFM(Personal Finance Management), EBPP(Electronic Bill Presentment and Payment) and Account Aggregation and so on. The stage of site can be divided as the information provide stage which only gives information about service parts, on-line transaction stage which real-time transaction is possibile and PFM services provide stage according to development process. As a result, the beginning of finance portal service in Korea was lated about 10years and more than it of U.S.A. So the development stage of domestic portal site is still staying in the first step and the providing services and contents or business model development parts are also in the same stage than U.S.A. Resides, Korea's sites mainly focus on their first service parts even though they recently aim internet finance portal, and provide not real time transaction but finance information. On the other hand, the U.S.A. site support substantially not only various on-line transactions but also distinctive personal services like PFM(Personal Finance Management), EBPP(Electronic Bill Presentment and Payment), Account Aggregation and Trans-account, brokerage, education center, mortgage loan, mutual fund, option, pension fund and IPOs and so on. Thus, the site of Korea need to establish real type of internet finance portal which provides one-stop services on every type of finance to customers in the real time and also require the strategic integration among finance institutions. The next turn, they need to build information system and education center to give best satisfaction to customers and acquire customer information and marker environment changes and need to provide distinctive services to quality customers throughout database from this. Also the site should provide various type of banking services which refereed above like PEM, EBPP and education center etc, and the government of Korea should support the building of IT infrastructure to Physical, legal, systematic, sociocultural, technical and human resource sections. This paper provided the future movement direction of the domestic finance portal through comparison and analysis on the practical use of it between Korea and U.S.A. and also wanted to contribute for developing and reading of Korea finance portal in the new era of the finance paradigm.