• 한국해양학회지:바다
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• 제18권1호
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• pp.13-20
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• 2013

에너지 관점에서 생태계의 가치를 평가하는 에머지 개념과 방법론을 이용하여 영산강 하구해역 생태계가 우리 경제에 기여하는 가치를 시스템 관점과 생태계 서비스 관점에서 평가하였다. 하천과 바다가 만나서 형성되는 하구생태계의 특성을 반영하여 하천의 화학에너지가 유입에머지 총량($9.42{\times}10^{20}$ sej/yr)의 73%로 가장 많은 에머지를 공급하였으며, 조석에너지는 27%를 기여하였다. 영산강 하구생태계로 유입하는 자연환경에너지를 이용하여 시스템 관점에서 영산강 하구가 경제에 기여하는 가치를 평가한 결과 약 1,799억 em\/yr(1,491만 em\/ha/yr 또는 13,526 em$/ha/yr)으로 나타났다. 영산강 하구생태계가 제공하는 서비스의 가치는 수산물생산, 오염정화, 심미 기능, 과학연구의 네 가지만을 대상으로 평가하였다. 이 가운데 심미 기능의 가치가 1,799억 em\/yr으로 가장 높았으며, 수산물생산(1,011억 em\/yr), 오염정화(326억 em\/yr), 과학연구(9.3억 em\/yr)의 순으로 나타났다. 에너지를 이용하여 자연환경과 경제활동을 평가하는 에머지 방법론의 특성을 반영하여 이 연구에서 평가한 영산강 하구의 생태계 서비스 가치는 경제학적 방법을 이용한 평가보다 높았다.

• Asian Pacific Journal of Cancer Prevention
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• 제15권23호
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• pp.10267-10272
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• 2015

To evaluate the value of combined detection of serum CEA, CA19-9, CA24-2, AFP, CA72-4, SCC, TPA and TPS for the clinical diagnosis of upper gastrointestinal tract (GIT) cancer and to analyze the efficacy of these tumor markers (TMs) in evaluating curative effects and prognosis. A total of 573 patients with upper GIT cancer between January 2004 and December 2007 were enrolled in this study. Serum levels of CEA, CA19-9, CA24-2, AFP, CA72-4, SCC, TPA and TPS were examined preoperatively and every 3 months postoperatively by ELISA. The sensitivity of CEA, CA19-9, CA24-2, AFP, CA72-4, SCC, TPA and TPS were 26.8%, 36.2%, 42.9%, 2.84%, 25.4%, 34.6%, 34.2% and 30.9%, respectively. The combined detection of CEA+CA199+CA242+CA724 had higher sensitivity and specificity in gastric cancer (GC) and cardiac cancer, while CEA+CA199+CA242+SCC was the best combination of diagnosis for esophageal cancer (EC). Elevation of preoperative CEA, CA19-9 and CA24-2, SCC and CA72-4 was significantly associated with pathological types (p<0.05) and TNM staging (p<0.05). Correlation analysis showed that CA24-2 was significantly correlated with CA19-9 (r=0.810, p<0.001). The levels of CEA, CA19-9, CA24-2, CA72-4 and SCC decreased obviously 3 months after operations. When metastasis and recurrence occurred, the levels of TMs significantly increased. On multivariate analysis, high preoperative CA72-4, CA24-2 and SCC served as prognostic factors for cardiac carcinoma, GC and EC, respectively. combined detection of CEA+CA199+CA242+SCC proved to be the most economic and practical strategy in diagnosis of EC; CEA+CA199+CA242+CA724 proved to be a better evaluation indicator for cardiac cancer and GC. CEA and CA19-9, CA24-2, CA72-4 and SCC, examined postoperatively during follow-up, were useful to find early tumor recurrence and metastasis, and evaluate prognosis. AFP, TPA and TPS have no significant value in diagnosis of patients with upper GIT cancer.

• 한국습지학회지
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• 제16권4호
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• pp.319-325
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• 2014

연못형습지(Pond Wetland)는 우리나라 농업경관에서 많이 분포하고 있다. 이러한 연못형습지는 생물다양성을 위한 중요한 자원으로 평가 받는다. 하지만 연못형습지(Pond Wetland)에 대한 연구는 유형분류에 그치고 있다. 따라서 본 연구는 연못형습지의 생태계서비스(Ecosystem Service) 기능을 알아보았다. 연구방법은 총 3단계로 기능분석, 기능도출, 중요도 분석의 순으로 진행하였다. 선행연구를 분석하여 총 22가지의 기능을 도출하였다. 전문가 설문 결과 22개 항목 중 생물, 환경, 사회문화 분야에 각 4 기능씩 총 12개 기능으로 선별하였다. 항목간 AHP(Analytic Hierarchy Process)를 실시하여 기능별 중요도를 산출하였다. 중복된 기능은 통합하여 연못형습지의 생태계서비스 기능 10가지(1. Water Storage & Irrigation, 2. Vegetation Diversity, 3. Amphibian & Reptile Habitat, 4. Water Purification, 5. Aquatic Insect Habitat, 6. Nutriments Control, 7. Groundwater Recharge, 8. Fishery Habitat, 9. Eco-Experience & Education, 10. Aesthetic landscape)를 도출하였다. 향후 기능별 중요도 분석과 경제적 가치 지표를 적용하여 연못형습지의 생태계서비스 평가에 활용 할 수 있을 것으로 판단된다.

• 한국융합학회논문지
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• 제10권10호
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• pp.153-160
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• 2019

본 연구는 급변하는 소셜네트워크 기반의 서비스 및 제품에 대한 평가척도와 리뷰 컨텐츠 속성이 소비자의 구매 패턴에 어떻한 영향을 주고 있는지를 분석하고자 하였다. 이러한 분석은 개인과 기업간에 밀접하고 빠르게 통합되고 있고, 네트워크와 스마트 기술이 소비활동에 다양하게 관여하고 있는 현 시점에서 리뷰와 평점의 유용성과 선험적 추정을 통해 소비 및 구매에 작용되는 변화하는 소비자의 거래 환경을 확인 할 수 있다. 본 연구를 위해 계층분석기법(AHP)과 델파이(Delphi)기법을 적용하여 상위 평가기준 변수를 유용성, 기술성, 가치성으로 분류하고, 각각의 하위변수는 3개의 요인으로 그룹화 해서 평가 가중치를 통해 중요도를 분석하였다. 분석결과 유용성의 내구요인과 기술성의 혁신요인 그리고 가치성의 비용요인 및 품질요인 등으로 중요도를 분석할 수 있었다. 따라서 본 연구는 주요 요인을 검증하면서 제공되는 리뷰 평점과 포스팅 정보의 신뢰성을 동시에 분석하여 다양한 방법으로 경제활동에 참여하는 소비자와 기업에 보완적이고 추가적인 유용한 정보를 제공할 수 있을 것으로 기대된다.

• 한국동물위생학회지
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• 제43권4호
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• pp.201-209
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• 2020

In Korea, bovine tuberculosis (bTB) is a representative zoonotic disease that causes considerable economic loss. In determining the positive bTB, the ELISA method for examining the amount of interferon-gamma (IFN-γ) is included in Korea's diagnostic standard method. Recently, commercially available BIONOTE TB-Feron ELISA Plus (TB-Feron Plus) that detects IFN-γ has been introduced. However, since the scientific basis for the performance is limited, we evaluated performance by comparing it with the results of another IFN-γ ELISA assay kit (BOVIGAM®) certified by Office International des Epizooties. In our research, 42 positive blood samples preliminarily tested with a tuberculin skin test and/or BOVIGAM® and 54 negative blood samples collected from three bTB free farms were subjected to IFN-γ assay using the TB-Feron Plus and the BOVIGAM®, respectively. The result shows that the sensitivity, specificity and accuracy were 81.0% (34/42), 100% (54/54), 91.7% (88/96) in TB-Feron Plus kit and 78.6% (33/42), 100% (54/54), 90.6% (87/96) in BOVIGAM® kit, respectively. Moreover, the overall accordance percentage of the two kits was 99.0% (95/96) and there was almost perfect agreement between two assays (Kappa=0.977, P<0.0001). Furthermore, additional studies confirmed that elevated lymphocyte numbers in blood did not interfere with the results of the TB-Feron Plus kit. And, delayed time from sampling to culture decreased the optical density (OD) value. Therefore, we concluded that the TB-Feron Plus kit was not inferior to BOVIGAM® in performance. High lymphocyte numbers in blood did not impact on TB-Feron Plus results, while delayed time before culture interfered with OD value.

• 한국산림과학회지
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• 제112권4호
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• pp.530-543
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• 2023

기후변화 대응과 탄소중립 사회로의 이행과정에서 중요한 역할을 담당한 산림이 제공하는 혜택의 사회적 가치는 점증해 왔다. 경제적·공익적 가치를 매개로 산림 부문 체계는 산주·임업인의 범주를 넘어 전체로서의 사회와 상호작용한다. 따라서 전체 사회의 관점에서 산림과 산림정책에 대한 공공 인식과 선호를 파악하는 것은 앞으로 산림정책 방향 설정에 있어서 중요하다. 이를 위해 본 연구는 산림청에서 설문조사 전문기관을 통해 1991년부터 2023년까지 7차례에 걸쳐 수행한 '산림에 관한 국민의식조사' 결과를 바탕으로 지난 32년간 의식변화를 시계열적 비교를 통해 분석하였다. 연구 결과 전반적인 산림정책에 대한 국민의 만족도는 높아졌으며, 산림녹화, 숲길·숲교육, 산림휴양시설 설치·운영 순으로 만족도가 높았고, 산지이용·관리, 산림재해 예방, 국제산림협력 순으로 만족도가 다소 낮은 것으로 나타났다. 또한, 국민은 숲가꾸기, 임도, 해외조림 정책은 지금보다 더 확대가 필요한 것으로 판단했다.

• Asian Pacific Journal of Cancer Prevention
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• 제15권22호
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• pp.9679-9685
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• 2014

Background: When evaluating health-economics for cervical cancer prevention policies in Japan, it is important to use Japanese value settings. This study aimed to obtain preference-based measures (preference measures) for hypothesized health states among healthy Japanese women, and to examine differences between the EuroQol-5D (EQ-5D) and standard gamble (SG) instruments. Materials and Methods: The investigation was performed among female students at a nursing university. We used written hypothetical scenarios describing three grades of cervical intraepithelial neoplasia (CIN) and eight stages of cervical cancer, both at diagnosis and after medical intervention. Preference measures were evaluated using both EQ-5D and SG. Results: We received responses from 136 women. The mean number of respondents per stage was 24.6 (SD: 2.7). At diagnosis, average EQ-5D scores for CIN1, CIN2, CIN3, IA1, IA2, IB1, IB2, IIA, IIB, III, and IV stages were 0.84 (0.14), 0.78 (0.12), 0.73 (0.10), 0.78 (0.12), 0.72 (0.12), 0.63 (0.13), 0.64 (0.12), 0.68 (0.08), 0.62 (0.13), 0.55 (0.21), and 0.18 (0.24), respectively. Using one-way analysis of variance with the Tukey-Kramer method for multiple comparisons (each stage vs. CIN1), we found significant differences for IB1 and more advanced stages (p<0.05). After medical intervention, corresponding EQ-5D scores were 0.84 (0.12), 0.81 (0.12), 0.84 (0.12), 0.80 (0.15), 0.78 (0.11), 0.64 (0.15), 0.63 (0.15), 0.71 (0.15), 0.50 (0.17), 0.52 (0.17), 0.21 (0.28). The multiple comparisons identified significant differences for IB1 and more advanced stages, excepting IIA (p<0.05). SG evaluations were more variable and relatively higher than EQ-5D evaluations. Conclusions: We obtained preference measures for three grades of CIN1-3 and eight stages of cervical cancer. In combination with appropriate sensitivity analyses, these preference measures will provide a basis for an economic evaluation of cervical cancer prevention in Japan. We suggest that EQ-5D is appropriate for cost-utility analysis of this topic.

• 지질공학
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• 제30권1호
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• pp.43-57
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• 2020

본 연구는 기존의 강지보재보다 우수한 고강도 격자지보재를 개발하여 그 성능을 평가하기 위함이다. 이를 위해 수치해석을 이용한 지보재의 구조적 특성을 분석하였고, 시작품에 대한 최대 굽힘하중시험과 용접이음부 인장강도시험을 실시하여 그 성능을 평가하였다. 구조해석 결과에 따른 최적의 상하부부재와 플레이트의 규격은 50 mm × 31.8 mm × 25.4 mm로 시공성과 경제적이 우수한 것으로 나타났다. 굽힘 하중시험으로부터 확정된 규격 55 mm × 30 mm × 20 mm와 85 mm × 30 mm × 20 mm의 고강도 격자지보재는 기준값과 H형강 100과 125의 목표값 모두 만족하는 것으로 나타났다. 이론 처짐량과 실제 처짐량의 비를 검토한 결과, 이 연구에서 개발된 고강도 격자지보재는 독일연방 철도국에서 제시하고 있는 격자지보재 처짐량의 평가기준 5 이하로 나타났다. 마지막으로 용접이음부에 대한 인장시험 결과는 고강도 격자지보재의 주봉-보조봉-플레이트가 접하는 용접이음부 인장강도가 목표값 이상으로 나타나 용접이음부에 대한 안정성은 충분한 것으로 나타났다.

• 원예과학기술지
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• 제34권6호
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• pp.924-939
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• 2016

The great economic losses caused by Cucumber mosaic virus (CMV) infection of peppers has led to the development of genetically modified (GM) CMV-resistant peppers. We developed virus-resistant pepper plants using Agrobacterium tumefaciens -mediated transformation. The expressed recombinant protein was purified using nickel-nitrilotriacetic acid resin and immunoaffinity chromatography, and purity was assessed by sodium dodecyl sulfate polyacrylamide gel electrophoresis. Immunoblot analysis revealed the purified CMV coat protein (CMV-CP) had a molecular mass of 25 kDa. After in-gel digestion and desalting, the internal peptide fragments of CMV-CP were sequenced by matrix-assisted laser desorption/ionization-time of flight. Most GM pepper and Escherichia coli BL21 internal peptides had identical peptide sequences and contained 137 of 183 whole peptides in CMV-CP. A quantitative enzyme-linked immunosorbent assay was performed to detect CMV-resistant GM peppers. We also provide basic information about the expressed protein in GM peppers for further safety assessment. The contents of soluble protein and CMV-CP were measured in GM and control peppers cultivated in three different areas of Korea. Statistical significance in terms of cultivation areas, harvest times, generations, and plant tissue origin were determined based on a P value of 0.05. The highest amount of CMV-CP was detected at the seedling stage from plant grown in each region. T3 and T5 showed significantly different levels of CMV-CP from T4 in leaves in the whorl stage. No statistical differences were observed among GM peppers at different stages of maturity in any cultivation area. The results from this study contribute to the safety evaluation of newly designed CMV-resistant GM peppers and provide a standard against which to compare other virus-resistant GM peppers.

• 농촌지도와개발
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• 제3권1호
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• pp.141-155
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• 1996

The purpose of this study was to investigate the sole of local newspaper for community development in Korea. Specific objectives of the study were : 1) to identify the role of local newspaper in community development, 2) to analyze problems and situations on local newspapers in Korea, and 3) to suggest desirable roles of local newspaper for the community development. To attain the above objectives, this study was carried out through literature review, contest analysis of selected local newspapers, and the questionnaire survey of selected readers of local newspaper. The data were collected from 267 readers of local newspaper who participated in the farmers` training session in the Rural Development Administration, by using questionnaires developed by the researcher, and total of 263 questionnaires were analyzed. The statistical techniques used for the study were frequence, percentile, standard deviation utilizing the $SPSS/PC^+$. The major findings of the study were as follows : 1. The major roles of functions of local newspapers identified in this study were summarized as to reinforce the community consciousness, to form community opinion, to watch and to monitor community environment, to provide education and entertainment, and to contribute to the conveyance and promotion of community culture. 2. The general characteristic of local newspaper readers surveyed were; a) average distance from town to their village was 9.3 Km, b) average age was 29 years, c) about 75% of them were senior high school graduates, and d) about 96% of them participated in group activities. 3. About 45% of the respondents used television or radio for their moor sources of local news were TV or radio, while about 31% respondents used immunity newspaper for their moor sources of local news. About 67% of the respondents kept their readership over two years, and about 40% of them read community newspaper regularly at their home. 4. The results of content analysis showed drat the local newspapers were dealing with articles on cultural affairs, community consciousness, administrative and civic affairs, however, there were not enough educational news, and various kinds of general news in the community. 5. Survey also showed the most needed news were ; 1) political news including administrative and civic affairs, 2) economic news including sales and distribution, 3) social news including social problems on environmental pollution and community development works, 4) educational news including technology and information, 5) cultural news including guide to cultural and historical sites and local brief news. 6. In the evaluation of local newspaper, the readers were generally positive in valued roles of local newspaper in community relations, community development, promoting community cohesion and understanding of community members, and about 40% of the respondents were positive in predicting the bright future perspectives of local newspapers. 7. In the readers` evaluation of local newspaper, readers responded that local newspapers were very closely related to the community and residents, reflecting the current concerns of local population and recognizing the value of community media, and the contents of local newspaper were positively related to daily lives of community residents and opinions of overall community.