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Serological Detection of Antibodies against Anaplasma spp. in Cattle Reared in the Gyeongsangbuk-do, Korea

  • Seo, Min-Goo;Ouh, In-Ouh;Lee, Seung-Hun;Son, Ui-Han;Geraldino, Paul John L.;Rhee, Man Hee;Kwon, Oh-Deog;Kim, Tae-Hwan;Kwak, Dongmi
    • Parasites, Hosts and Diseases
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    • v.56 no.3
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    • pp.287-290
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    • 2018
  • Anaplasmosis is a tick-borne, non-contagious, zoonotic disease caused by Anaplasma spp., which include Anaplasma marginale, A. centrale, A. phagocytophilum, A. platys, A. ovis, and A. bovis. Recently, in Korea, the prevalence of Anaplasma spp. has been investigated in some animals, such as dogs, horses, goats, cats, and Korean water deer. In cattle, A. marginale is the most virulent species and regarded as the typical type of species. However, data on the seroprevalence of Anaplasma spp. in cattle in Korea during the last decade is limited. This study was designed to investigate the seroprevalence of bovine anaplasmosis in Korea. From 2010 to 2013, blood samples were collected from 568 cattle. Forty animals (7.0%) tested seropositive for Anaplasma spp. by cELISA. Despite that current bovine anaplasmosis seropositivity rate in the Gyeongsangbuk-do is lower than those in tropical countries, anaplasmosis needs to be regarded as a concerning disease. The identification of the specific Anaplasma species infecting cattle in this province requires additional molecular studies. Moreover, further monitoring and control programs for bovine anaplasmosis is required, and the information from this study will be beneficial to develop these programs.

A Critical Review of Research on the Economic Valuation of Libraries (도서관 경제성 평가 연구의 비평적 분석)

  • Ko, Young-Man;Shim, Won-Sik
    • Journal of the Korean Society for Library and Information Science
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    • v.45 no.4
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    • pp.27-52
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    • 2011
  • The value of the library has always been recognized positively. Economic valuation of libraries and their services uses a concrete methodology that enables the quantification of library value and communication of said value among library stakeholders. This paper presents a comprehensive review of literature on economic valuation of the library based on a total of 89 studies conducted over the last quarter-century. Research on library valuation began in the mid-1990's with the formal exploration of the value of public libraries from a theoretical point of view. In the 2000's, various theories and methodologies were reviewed and put into actual measurement studies. The comprehensive review and analysis point to the need for the development of consistent and reliable set of methods, which will facilitate further application of methods and comparison of results.

Potential Endocrine Disrupting Effects of Phthalates in In Vitro and In Vivo Models

  • Nguyen, Tien-Thanh;Jung, Eui-Man;Yang, Hyun;Hyun, Sang-Hwan;Choi, Kyung-Chul;Jeung, Eui-Bae
    • Journal of Embryo Transfer
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    • v.25 no.4
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    • pp.207-213
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    • 2010
  • Thousands of new chemicals have been introduced to environment during last decades. Many of them and common consumer products have been shown to be the endocrine disrupting chemicals. One such chemical group is the phthalates, used in soft poly vinyl chloride (PVC) material and in a huge number of consumer products. The prevalence of these modem chemicals have a remarkable increase. Approximately 3.5 million tons of the main phthalate, di-(2-ethylhexyl) phthalate (DEHP), are produced annually worldwide and indeed, DEHP is considered a ubiquitous environmental contaminant. It has been demonstrated that high doses of phthalate can adversely affect adult and developing animals. In this review, we critically discuss the conclusions of recently original research papers and provide an overview of studies on reproductive disrupting effects of phthalates. In addition, we review the reproductive toxicity data of phthalates in some in vitro research and in both male and female reproductive systems in experimental and domestic animals. Finally, we point out some critical issues that should be addressed in order to clarify the implication of phthalates for human reproduction.

A Study on the Multiplicative Thinking of 2nd Grade Elementary Students (초등학교 2학년 학생의 곱셈적 사고에 관한 연구)

  • Jang Mi-Ra;Park Man-Goo
    • Communications of Mathematical Education
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    • v.20 no.3 s.27
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    • pp.443-467
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    • 2006
  • The purpose of this study was to study the 2nd grade elementary students' common thinking and differences of additive and multiplicative thinking. For meaningful discussion of the above, we have established the following research questions. 1. What are the properties of the multiplicative thinking of 2nd grade elementary students? - What are the common properties of the multiplicative thinking of 2nd grade elementary students? - What are the properties of the various multiplicative thinking levels? 2. How is multiplicative thinking presented in Korean math textbooks? The conclusions of this study were followings: First, the 2nd grade elementary students in the multiplicative thinking learnt used by translating multiplication into specific situations. And they often used different models of multiplication. Second, additive thinking developed into the multiplicative thinking. After being helped by their teachers, students who thought additively were then able to think multiplicatively. Whereas after being helped by their teachers, students who were already competent at multiplicative thinking gained a deeper understanding. Third, they learned the commutative property of multiplication after their understanding of the 'repeated addition approach' and the multiplicative approach was sufficiently reinforced. Last, students should be taught using different models based on the repeated addition approach.

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Multiple SVM Classifier for Pattern Classification in Data Mining (데이터 마이닝에서 패턴 분류를 위한 다중 SVM 분류기)

  • Kim Man-Sun;Lee Sang-Yong
    • Journal of the Korean Institute of Intelligent Systems
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    • v.15 no.3
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    • pp.289-293
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    • 2005
  • Pattern classification extracts various types of pattern information expressing objects in the real world and decides their class. The top priority of pattern classification technologies is to improve the performance of classification and, for this, many researches have tried various approaches for the last 40 years. Classification methods used in pattern classification include base classifier based on the probabilistic inference of patterns, decision tree, method based on distance function, neural network and clustering but they are not efficient in analyzing a large amount of multi-dimensional data. Thus, there are active researches on multiple classifier systems, which improve the performance of classification by combining problems using a number of mutually compensatory classifiers. The present study identifies problems in previous researches on multiple SVM classifiers, and proposes BORSE, a model that, based on 1:M policy in order to expand SVM to a multiple class classifier, regards each SVM output as a signal with non-linear pattern, trains the neural network for the pattern and combine the final results of classification performance.

Precision Test of 3D Face Automatic Recognition Apparatus(3D-FARA) by Rotation (3차원 안면 자동 인식기(3D-FARA)의 안면 위치변화에 따른 정확도 검사)

  • Seok, Jae-Hwa;Cho, Kyung-Rae;Cho, Yong-Beum;Yoo, Jung-Hee;Kwak, Chang-Kyu;Lee, Soo-Kyung;Kho, Byung-Hee;Kim, Jong-Won;Kim, Kyu-Kon;Lee, Eui-Ju
    • Journal of Sasang Constitutional Medicine
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    • v.18 no.3
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    • pp.57-63
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    • 2006
  • 1. Objectives The Face is an important standard for the classification of Sasang Contitutions. Now We are developing 3D Face Automatic Recognition Apparatus to analyse the facial characteristics. This apparatus show us 3D image of man's face and measure facial figure. We should examine accuracy of position recognition in 3D Face Automatic Recognition Apparatus. 2. Methods We took a photograph of Face status with Land Mark 8 times using Face Automatic Recognition Apparatus. Each taking-photo, We span Face statusby 10 degree. At last time, We took a photograph of Face status's lateral face. And We analysed Error Averige of Distance between seven Land Marks. So We examined the accuracy of position recognition in 3D Face Automatic Recognition Apparatus at indirectly in degree changing of Face status. 3. Results and Conclusions According to degree change of Face status, Error Averige of Distance between Seven Land Marks is 0.1848mm. In conclusion, We assessed that accuracy of position recognition in 3D Face Automatic Recognition Apparatus is considerably good in spite of degree changing of Face status

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A Study on the problem of body-sign in Abakanowicz's works : On Abakans and Extension of body (아바카노비치에 있어서 신체 기호의 문제 -아바칸Abakans과 몸의 확장을 중심으로)

  • Kim Sung-Hee
    • Journal of Science of Art and Design
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    • v.2
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    • pp.161-192
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    • 2000
  • Body has been high-lightened as one of the most important theme since the philosophy and the arts are focused on it in the late 20th century. It would be of worth to study the characteristics of contemporary fiber-art works, especially done by Abakanowiz who has been regarded as a dominant pioneer in the contemporary fiber-arts from the viewpoint of inter-grade of the physicals and the mental. This paper, therefore, deals with the Abaknowiz' works in the context of human body and body-signs. Life and works might be classified into 5 stages: first, learning period since her birth in 1930, second, creation period of Abakans, third, remodelling period of Abakans, fourth, composition and dissolution period of Abakans and the last and fifth, new transformation period of Abakans. 'Abakans' through her whole life as an artist have been a plastic language and based ultimately on external human body but in various materials and forms. Abakan as a human-sign uses the past experiences and the texts of the other world in mixed and overlapped forms. Life-size Abakans by Abaknowiz can be easily understood as Abakanowiz herself and her Polish ancestor at the same time. The neuter Abakans with mashed face and obscure body is a expressive figure of coexisting world with opposite concepts like war and ideology, anxiety and freedom, man and woman, and etc. Human body as body-sign is an extensive image has existed since our forefathers and overlapped with the inter textual and the popular images. 'Abakans' that is our world and inner-self at the same time might be a window through which she tries to show what the world is.

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A Brief Review of Approaches Using Planktonic Organisms to Assess Marine Ecosystem Health (부유생물을 이용한 해양생태계 건강성 평가)

  • Kim, Young-Ok;Choi, Hyun-Woo;Jang, Min-Chul;Jang, Pung-Kuk;Lee, Won-Je;Shin, Kyoung-Soon;Jang, Man
    • Ocean and Polar Research
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    • v.29 no.4
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    • pp.327-337
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    • 2007
  • Plankton communities have close relationships with environmental changes in water columns. Thus, the use of plankton as a biological tool for assessing the marine ecosystem health may be effective. Major issue regarding coastal pollution has been usually recognized as phytoplankton blooms or red tides caused by the eutrophication, an increase in concentration of inorganic nutrients such as nitrogen and phosphorus. However, in order to understand the effects of the overall pollution on marine ecosystem, the organic pollutants as well as the inorganic nutrients should be also considered. For understanding the effects of the organic pollution, among the planktonic organisms, heterotrophic bacteria, heterotrophic flagellates and ciliates should be investigated. Generally, there are three approaches for assessing the marine ecosystem health using the plankton taxa or plankton communities. The first one is a community-based approach such as diversity index and chlorophyll a concentration which are common in analysis of the plankton communities. The second is an indiviual-based approach which is to monitor the pollution indicative species. This approach needs one's ability to identify the plankton to species level. The last approach is a bioassay of toxicity, which can be applied to the plankton. A pilot study in Masan Bay was conducted to assess the effects of the inorganic and organic pollution. In this article, a new approach using plankton communities was tentatively presented as a biological tool for assessing the ecosystem health of Masan Bay.

Global Project Finance Trends and Commercial Risk Analysis (글로벌 프로젝트 파이낸스 최근 동향 및 상업위험 분석)

  • Kim, Sang Man
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.61
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    • pp.273-302
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    • 2014
  • Project finance ("PF") is a method of raising long-term debt financing based on lending against the cash flow generated by the project alone. Project finance is a nonrecourse or limited recourse financing structure against the sponsors(or the investors). The debt terms in a project finance are not based on the creditor's credit support or on the value of the assets of the project. Lenders rely on the future cash flow to be generated by the project for debt repayment and interest, rather than the value of the project or the credit ratings of the sponsors. The non-recourse or limited recourse financing usually prompt potential project finance lenders to assess carefully all possible risks that might arise in a project to ensure that those risks are mitigated and controlled. In this respect, project finance is a opposite financing method of corporate finance. Project finance has rapidly grown over the last 20 years due to the worldwide process of privatization of public sector and development of natural resources. Global project finance volume reached the record USD 406.5 billion in 2011. In 2012, however, Global project finance volume dropped 6% to USD 382.3 billion. Infrastructure overtook Energy to lead all sectors with USD 113.6 billion. It is generally recognized that there are more and higher risks in project finance compared with corporate finance. Project finance is exposed to commercial risks as well as political risks. The main commercial risks are completion risks, environmental risks, operating risks, input supply risks, revenue risks, etc, and the main political risks are currency convertibility and transfer risks, expropriation risks, war and civil disturbance risks, risks of breach of government concession agreement, etc. Completion risks include permits risks, risks relating to the EPC Contractor, construction cost overrun, delay in completion, inadequate performance on completion, etc.

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Ultrasonographic Evaluation of an Atypical De Quervain's Disease - A Case Report - (초음파를 이용하여 진단한 비전형적 De Quervain씨 병 - 1례 보고 -)

  • Koh, In-Jun;Kim, Jung-Man;Song, Chol
    • The Journal of Korean Orthopaedic Ultrasound Society
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    • v.1 no.2
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    • pp.91-93
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    • 2008
  • De Quervain's disease is a stenosing tenosynovitis that affects the synovial sheath of the tendons of the abductor pollicis longus and extensor pollicis brevis; it can be considered a work-related disease, since it frequently is associated with highly repetitive movements in jobs using the hands. The usual sign and symptom of de Quervain's diseases are positive Finkelstein's sign and pain and tenderness around the radial styloid process. The majority of de Quervain's disease has a good results to conservative treatment, but surgery can be performed in case of recurrence or pain last more than 6 months without improvement in spite of conservative treatment. We diagnosed a patient with atypical de Quervain's disease by ultrasonography, treated by local steroid injection and pain was relieved. We report a case of atypical de Quervain's disease evaluated by ultrasonography with brief of literatures.

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