• 천문학회보
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• 제42권2호
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• pp.46.2-46.2
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• 2017

We will present a discovery of an elliptical jellyfish galaxy in Abell 2670 (Sheen et al. 2017, ApJL, 840, L7). Our MUSE IFU spectra revealed a rotating gas disk in the center of the galaxy and long ionised gas tails emanating from the disk. Its one-sided tails and a tadpole-like morphology of star-forming blobs around the galaxy suggested that the galaxy is experiencing strong ram-pressure stripping in the cluster environment. Stellar kinematics with stellar absorption lines in the MUSE spectra demonstrated that the galaxy is an elliptical galaxy without any hint of a stellar disk. Then, the primary question would be the origin of the rich gas component in the elliptical galaxy. A plausible scenario is a wet merger with a gas-rich companion. In order to investigate star formation history of the system (the galaxy and star-forming blobs), we derived star-formation rate and metallicity from the MUSE spectra. Photometric UV-Optica-IR SED fitting was also performed using GALEX, SDSS, 2MASS and WISE data, to estimate dust and gas masses in the system. For a better understanding of star formation history and environmental effect of this galaxy, FIR/sub-mm follow-up observations are proposed.

• Parasites, Hosts and Diseases
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• 제55권3호
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• pp.337-340
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• 2017

Leishmaniasis is a neglected and endemic disease that affects poorest population mainly in developing countries. A lack of adequate and definitive chemotherapeutic agents to fight against this infection has led to the investigation of numerous compounds. The aim of this study was to investigate in vitro activity of boldine against Leishmania amazonensis murine cell infection. Boldine ((S)-2,9-dihydroxy-1,10-dimethoxy-aporphine) is an aporphine alkaloid found abundantly in the leaves/bark of boldo (Peumus boldus Molina), a widely distributed tree native to Chile. The in vitro system consisted of murine macrophage infection with amastigotes of L. amazonensis treated with different concentrations from 50 to $600{\mu}g/ml$ of boldine for 24 hr. Intracellular parasite destruction was assessed by morphological examination and boldine cytotoxicity to macrophages was tested by the MTT viability assay. When cells were treated with $100{\mu}g/ml$ of boldine the reduction of parasite infection was 81% compared with untreated cultures cells. Interestingly, boldine-treatment caused a concentration-dependent decrease of macrophage infection that culminated with 96% of reduction when cells were submitted to $600{\mu}g/ml$ of boldine. Cell cultures exposed to $100{\mu}g/ml$ of boldine and $300{\mu}g/ml$ of $Glucantime^{(R)}$ during 24 hr showed a significant reduction of 50% in parasitized cells compared with cell cultures exposed just to $Glucantime^{(R)}$. The study showed that treatment with boldine produces a better effect than treatment with the reference antimonial drug, glucantime, in L. amazonensis infected macrophage. Our results suggest that boldine is a potentially useful agent for the treatment of leishmaniasis.

• 한국중재학회지:중재연구
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• 제15권3호
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• pp.233-266
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• 2005

The world trading system has been under many changes in recent years. One notably important development is that much attention away from the multilateralism-oriented World Trade Organization towards FTA(Free Trade Agreement). The Free Trade Agreement signed between korea and chile formally have been come effective for free trade in goods and services as from April 1, 2004. During Free Trade Agreement negotiations between both countries. This study aims at presenting the suggestion for the Korea to make the WTO rules and FTA by analyzing The interpretation of FTA under WTO System. It was founded by the investigation of WTO rules, most of the provisions are similar with other FTA, but a little provisions different from other FTA's. It is an appearance from the contracting party's peculiar circumstances such as state of industrial development or future prospect, conditions around international trade. The whole world has entered the new stage of bilateral and multilateral FTA. The essential or new generation or bilateral and multilateral FTA is creating more trade opportunities, promoting all factors, commodity, service, capital, technology and talent freely flow through canceling the trade barriers between FTA, in order to develop together within the regions. It shows that the cooperations transfer form the whole region into FTA. FTA makes not only the free trade smooth ,but also takes place the trade distortion effect. especially as the agriculture has a speciality each country, should it is ignored in negotiation, many reactions will be occurred in the process of fta Therefore Korea needs to deliver the message that Korea's hub is an essential ingredient for an efficient FTA and WTO system in a bilateral and multilateral win-win framework. Consequently Korea should have criterions about the rules of FTA and WTO system for peculiar circumstances of Korean economy and international trade.

• 한국정보통신학회논문지
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• 제22권9호
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• pp.1271-1276
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• 2018

2018년 3월 8일, 칠레 산티아고에서 베트남을 포함한 11개 국가들이 포괄적이고 점진적인 환태평양경제동반자 협정(CPTPP) 출범 합의에 서명하였다. CPTPP(Comprehensive and Progressive Agreement for Trans-Pacific Partnership)는 2017년 1월 미국의 TPP 탈퇴 이후 남은 11개국(일본, 호주, 뉴질랜드, 캐나다, 멕시코 칠레, 페루, 싱가포르, 베트남, 말레이시아, 브루나이)이 참여하는 아시아-태평양 지역의 대규모 자유무역협정(FTA)이다. 기존의 TPP 보다 경제적 규모는 작아졌지만, CPTPP 11개국의 국내총생산(GDP) 규모는 전 세계 대비 12.9%, 교역량은 14.9%로 또 다른 메가 FTA가 탄생했다는데 의의가 있다. CPTPP는 기존 TPP의 큰 틀을 그대로 유지함으로써 TPP 합의 사항들이 거의 그대로 적용되지만, 지식재산권과 투자분쟁해결절차 등 일부 민감한 내용들은 적용이 유예 및 수정되었다.

• 무역상무연구
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• 제78권
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• pp.119-143
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• 2018

This research aims to review every important academic research on risk management in FTA and to suggest a future area for further research. This research area seems to focus on conceptual study or fact finding rather than on theory development or empirical research on causal relationship or theory testing. The National Assembly Digital Library analyzed the results of 3,576 researches on thesis and journals fromthe results of the FTA. Research on FTA is analyzed in four major themes. First, there have been previous studies on business performance such as FTA export performance and economic effect. Second, analyzed the effects of FTA in product and service. The products are classified into agricultural, marine products, manufacturing, textiles and clothing, medicinal pharmaceuticals, cosmetics, and others. Services are classified into educational and cultural contents, service industry and financial industry. Third, research on the risk management of FTA Origin is broadly classified into the use of country of origin and the verification of origin, and the use of origin includes the study of rules of origin and systems of origin and management. Origin verification was divided into origin verification and origin risk management. Fourth, study on the conclusion area of the FTA, studies were conducted on areas such as Korea-US FTA, Korea-China FTA, Korea-EU FTA, Korea-Japan FTA, Korea-Chile FTA, and Korea-ASEAN FTA. Search results through the FTA, focused on analyzing the FTA area and concept research by research purpose. In addition, research methods are mainly focused on documentary survey, and research areas are concentrated on specific countries such as China and USA. This implies a necessity for a future development in that research area. Other areas for future research may include case research on actual failures in FTA, proactive risk management strategy, and integrated risk management for export companies. Risk management in FTA may help investment expansion, and that is why research on the issue matters.

• 노동경제논집
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• 제27권2호
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• pp.29-66
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• 2004

이 글은 1981년부터 2000년까지 한국의 "광공업통계조사" 원자료를 이용하여 한국 광공업의 사업체 수준에서의 일자리창출률과 소멸률을 측정하고 분석하는 것을 목적으로 한다. Davis and Haltiwanger(19992)의 방법론에 따라 측정한 결과 동 기간 광공업 5인 이상 지속사업체의 일자리창출률과 소멸률은 각각 9.75, 10.33로서 다른 나라의 일자리변동과 비교할 때 상대적으로 높은 수준이었다. 또한 창출된 일자리의 지속성이 낮고 일자리변동의 집중성은 높은 수준임을 확인할 수 있다. 노동자 재배치 중에서 일자리 재배치가 설명하는 비중을 측정한 결과 미국과 비슷하거나 더 높은 비중을 보여서 일자리변동이 노동이동의 중요한 요인으로 작용했음을 확인할 수 있었다. 외환위기 직전까지 노동이동이 감소하는 추세였던 데 비해 일자리 재배치 수준에는 변함이 없어 외환위기 직전에는 일자리 재배치가 설명하는 비중이 최대 60%까지 높아졌다. 마지막으로 일자리창출과 소멸의 변화가 호황과 불황기에 어떤 차이가 있는지를 연구하였다. 창출률과 소멸률은 각각 경기순행적, 경기역행적으로서 일반적인 양상을 띠고 있었으며, 미국과 달리 일자리 재배치율의 경기역행성은 관측할 수 없었다.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제20권4호
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• pp.287-303
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• 2017

본 연구에서는 초등학생이 수학 학습과 관련하여 정의적인 면에서 갖는 특성을 파악하기 위하여 Hannula(2012)가 수학 학습자 개인의 정의적 요인 분석을 위해 개발한 설문지를 적용하였다. 설문 조사 결과를 조사 대상 학생의 성취 수준, 학년, 성별에 따라 기술통계 및 일원분산의 방법으로 분석하였다. 또한. 회귀분석을 통하여 각 정의적 요인들 간의 상관관계를 분석하였다. 한편, 이상의 연구 결과를 본 연구에서 사용한 동일 설문지로 이미 핀란드와 칠레의 초등학생을 대상으로 분석한 연구(Tuohilampi et al., 2013; Tuohilampi et al., 2014b) 결과와 비교하였다. 그 결과 본 연구에서 조사한 초등학생의 수학 성취도와 학년 변인이 정의적 요인과 밀접한 관계를 보이고 있으며, 특히 정의적 요인의 인지와 동기 측면에 있어서 상대적으로 보다 높은 관계성을 보이는 것으로 나타났다. 이상 우리나라 초등학생에 대한 연구 결과와 우리나라, 칠레, 핀란드 3개국의 초등학생들 사이에 나타나는 수학 학습의 정의적 특성 면에서 보이는 차이점은 초등교사로 하여금 정의적인 면에서의 수학 수업 개선에 필요한 방법론적 고찰에 도움이 될 것으로 생각한다.

• Journal of the Korean Wood Science and Technology
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• 제19권4호
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• pp.34-42
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• 1991

Protection of tropical forest affects on significant reduce of tropical hardwood supply, and softwood resources will be increasingly important for the timber security in Korea. U.S. softwood log was most favorite species for Korean softwood log importers in overall import conditions except price stablization and consistency of export policy. Reduced export volume from Pacific Northwest to Korean market has been immediately replenished by rediata pine from New Zealand and Chilean plantation. Siberian timber will hardly play major roles in Korean timber market unless budding structure. softwood plywood and softwood furniture uses are enhanced. Recent rapid rise of labor cost and reducing tariff rrate in Korea provided better opportunities for import lumber in building materials market. Dry dimension lumber was relatively profitable when processed from import U.S. soft-wood log while green lumber was favorable products processed from radiata pine log in Korean lumber market. This means U.S. softwood lumber would have better opportunity to market for '2${\times}$'4 studs when wood frame housing is introduced. On the other hand while radiata pine is competitive on temporary construction lumber such as supporter and concrete forming frame in Korea. Shortage of raw material for the new capacity of board plants in Korea will be it bottle neck. Major log export countries to Korea as U.S. New Zealand and Chile showed high trade intensity indices of composite hoard produces for Korean market. As Korea efforts to diversify import sources, and tariffs are reduced to 8% as scheduled by 1994. countries of scoring higher comparative advantages as Portugal. Brazil, Austria as well as New Zealand will have better opportunity to penetrate into promised Korean composites hoard market.

• 한국수산과학회지
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• 제46권3호
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• pp.245-251
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• 2013

This study was conducted to compare quality characteristics of imported skate rays. The moisture content was higher in imported skate rays than in domestic mottled skate, while the protein content displayed a contrasting pattern. From measurements of the volatile basic nitrogen content, pH, viable cell counts, and urea and ammonia contents, the freshness of skate rays imported from Chile, Canada and Uruguay was considered to be inferior to domestic mottled skate, while the freshness of skate rays imported from the USA was similar. The measurement of physicochemical properties revealed that four kinds of imported skate rays were of inferior quality, as compared to domestic mottled skate.

• 천문학회지
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• 제37권4호
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• pp.281-284
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• 2004

Optical imaging and spectroscopy of G353.2+0.9, the brightest part of the giant H II region NGC 6357, shows that this H II region is optically thin, contains ${\~}300\;M_{\bigodot}$ of ionized gas and is probably expanding into the surrounding medium. Its chemical composition is similar to that found in other H II regions at similar galactocentric distances if temperature fluctuations are significant. The inner regions are probably made of thin shells and filaments, whereas extended slabs of material, maybe shells seen edge-on, are found in the periphery. The radio continuum and H$\alpha$ emission maps are very similar, indicating that most of the optical nebula is not embedded in the denser regions traced by molecular gas and the presence of IR sources. About $10^{50}$ UV photons per second are required to produce the H$\beta$ flux from the 1l.3'${\times}$10' region surrounding the Pis 24 cluster that is south of G353.2+0.9. Most of the energy powering this region is produced by the 03-7 stars in Pis 24. Most of the 2MASS sources in the field with large infrared excesses are within G353.2+0.9, indicating that the most recent star forming process occured within it. The formation of Pis 24 preceded and caused the formation of this new generation of stars and may be responsible for the present-day morphology of the entire NGC 6357 region.