RISS 학술연구정보서비스

검색
다국어 입력

http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.

변환된 중국어를 복사하여 사용하시면 됩니다.

예시)
  • 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
  • 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
닫기
    인기검색어 순위 펼치기

    RISS 인기검색어

      검색결과 좁혀 보기

      • 좁혀본 항목

      • 좁혀본 항목 보기순서

        • 원문유무
        • 음성지원유무
          • 원문제공처
          • 등재정보
          • 학술지명
          • 주제분류
          • 발행연도
          • 작성언어
          • 저자

        오늘 본 자료

        • 오늘 본 자료가 없습니다.
        더보기
        • 무료
        • 기관 내 무료
        • 유료
        • KCI등재SCOPUS

          Modified Ferric Hydroxamate Spectrophotometry for Assaying Glycolic Acid from the Hydrolysis of Glycolonitrile by Rhodococcus sp. CCZU10-1

          Yu-Cai,He,You-Yan,Liu,Cui-Luan,Ma,Jian-He,Xu 한국생물공학회 2011 Biotechnology and Bioprocess Engineering Vol.16 No.5

          We successfully modified a ferric hydroxamate spectrophotometry method for assaying glycolic acid. Comparable to the high-performance liquid chromatography (HPLC)-based method, ferric hydroxamate spectrophotometry can be used to accurately monitor the time course of glycolonitrile bioconversion. Glycolic acid was assayed simply and rapidly at room temperature (25 ~35℃). Optimum culture conditions were obtained using this method to assay the glycolonitrile-hydrolyzing activity of Rhodococcus sp. CCZU10-1. The preferred carbon and nitrogen sources and ideal inducer were glucose (10 g/L),a composite of peptone (10 g/L) plus yeast extract (5 g/L),and ε-caprolactam (2 mmol/L), respectively. The optimal growth temperature and initial medium pH for Rhodococcus sp. CCZU10-1 glycolonitrile-hydrolyzing activity were 30℃ and pH 7.0. Modified ferric hydroxamate spectrophotometry could potentially be employed to assay other carboxylic acids.

        • SCISCIESCOPUS

          Pantropical climate interactions

          Cai,,Wenju,Wu,,Lixin,Lengaigne,,Matthieu,Li,,Tim,McGregor,,Shayne,Kug,,Jong-Seong,Yu,,Jin-Yi,Stuecker,,Malte,F.,Santoso,,Agus,Li,,Xichen,Ham,,Yoo-Geun,Chikamoto,,Yoshimitsu,Ng,,Benjamin,McPhaden,,Mich American Association for the Advancement of Scienc 2019 Science Vol.363 No.6430

          <P><B>Tropical interconnections</B></P><P>The El Niño–Southern Oscillation, which originates in the tropical Pacific, affects the rest of the world's tropics by perturbing global atmospheric circulation. Less appreciated than this influence is how the tropical Atlantic and Indian Oceans affect the Pacific. Cai <I>et al.</I> review what we know about these pantropical interactions, discuss possible ways of improving predictions of current climate variability, and consider how projecting future climate under different anthropogenic forcing scenarios may be improved. They argue that making progress in this field will require sustained global climate observations, climate model improvements, and theoretical advances.</P><P><I>Science</I>, this issue p. eaav4236</P><P>The El Niño–Southern Oscillation (ENSO), which originates in the Pacific, is the strongest and most well-known mode of tropical climate variability. Its reach is global, and it can force climate variations of the tropical Atlantic and Indian Oceans by perturbing the global atmospheric circulation. Less appreciated is how the tropical Atlantic and Indian Oceans affect the Pacific. Especially noteworthy is the multidecadal Atlantic warming that began in the late 1990s, because recent research suggests that it has influenced Indo-Pacific climate, the character of the ENSO cycle, and the hiatus in global surface warming. Discovery of these pantropical interactions provides a pathway forward for improving predictions of climate variability in the current climate and for refining projections of future climate under different anthropogenic forcing scenarios.</P>

        • SCIESCOPUSKCI등재

          Four Human Cases of Diphyllobothrium nihonkaiense (Eucestoda: Diphyllobothriidae) in China with a Brief Review of Chinese Cases

          Yu-Chun,Cai,Shao-Hong,Chen,Hiroshi,Yamasaki,Jia-Xu,Chen,Yan,Lu,Yong-Nian,Zhang,Hao,Li,Lin,Ai,Hai-Ning,Chen 대한기생충학열대의학회 2017 The Korean Journal of Parasitology Vol.55 No.3

          We described 4 human infection cases of zoonotic fish-tapeworm, Diphyllobothrium nihonkaiense, identified with morphological and molecular characters and briefly reviewed Chinese cases in consideration of it as an emerging parasitic disease in China. The scolex and mature and gravid proglottids of some cases were seen, a rosette-shaped uterus was observed in the middle of the mature and gravid proglottids, and the diphyllobothriid eggs were yellowish-brown in color and displayed a small knob or abopercular protuberance on the opposite end of a lid-like opening. The average size of the eggs was recorded as 62-67×42-45 μm. The parasitic materials gathered from 4 human cases were morphologically identified as belonging to the genera Diphyllobothrium and Adenocephalus. The phylogenetic analysis based on the nucleotide sequences of cytochrome c oxidase subunit 1 gene of the etiologic agents confirmed that the 4 cases were D. nihonkaiense infection. The finding of 4 additional D. nihonkaiense cases suggests that D. nihonkaiense might be a major causative species of human diphyllobothriasis in China. A combined morphological and molecular analysis is the main method to confirm D. nihonkaiense infection.

        • SCISCIESCOPUS

          Colloidal Gold Nanoparticles as a Blood-Pool Contrast Agent for X-ray Computed Tomography in Mice

          Cai,,Quan-Yu,Kim,,Sun,Hee,Choi,,Kyu,Sil,Kim,,Soo,Yeon,Byun,,Seung,Jae,Kim,,Kyoung,Woo,Park,,Seong,Hoon,Juhng,,Seon,Kwan,Yoon,,Kwon-Ha J.B. Lippincott 2007 Investigative radiology Vol.42 No.12

          OBJECTIVES:: To present the pharmacokinetics and computed tomographic imaging efficacy of colloidal gold nanoparticles (AuNPs) as a blood-pool agent for x-ray computed tomography (CT). METHODS AND MATERIALS:: To prepare the colloidal AuNPs, gold nanocrystals were modified using sulfhydrated polyethylene glycol (PEG). Cytotoxicity and histopathologic tests were carried out for toxicity evaluation. Six adult Balb/c mice underwent microcomputed tomography scans after injection of colloidal AuNPs (2.5 μmol Au/g body weight). Four mice with HT-1080 tumors were imaged for visualization of the tumor vasculature. RESULTS:: The PEG coated colloidal AuNPs appeared as spherical nanoparticles with 38-nm diameters. The AuNPs-PEG showed a biocompatibility without toxicity in the mice. We identified a stable imaging window for visualizing the vasculature system, immediately to 24 hours after injection. Microcomputed tomography imaging using AuNPs-PEG clearly visualized the tumor vascular structures. CONCLUSION:: Colloidal AuNPs show potential as a blood-pool agent for x-ray CT imaging.

        • KCI등재

          CVM을 통한 하이서울페스티벌의 가치평가

          Cai,Yu,Jin,Bo,Ma,So,Eun,Kim 강원대학교 경영연구소 2010 Asia-Pacific Journal of Business Vol.1 No.1

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

          본 연구는 축제의 가치를 최대지불의사액(WTP)을 통해 측정하고자 시도되었다. 연구대상이 된 하이서울페스티벌은 서울의 대표축제로 육성하고자 2003년부터 개최된 축제이다. 서울시는 이를 통해 관광객을 유치하고 문화관광지로서 서울의 이미지를 재정립하여 경제적 이익을 창출하고자 하는데 목표를 두었다. 하지만 해마다 상이한 콘셉트와 행사 개최장소의 변경으로 인해 축제의 정체성이 모호하며, 초기의 목표와는 달리 가시적인 성과를 얻고 있지 못한 실정이다. 이러한 문제점에 착안하여 축제개최장소별 CVM을 활용한 가치추정을 통해 하이서울페스티벌의 가치를 추정하고, 향후 정책적 시사점을 도출하고자 본 연구를 수행하였다. 연구결과 축제개최장소별 비이용가치는 상이한 것으로 나타났는데 이는 각 장소별 프로그램의 성격과 개최장소의 특징에 기인한 것으로 추측된다. 또한 하이서울페스티벌의 비이용가치 추정을 통한 경제적 가치는 422억 원으로 나타나 현재 시민들이 느끼는 편익의 가치는 큰 것으로 나타났다. 즉 향후 하이서울페스티벌의 기획에 있어서는 장소성을 가진 장소에서의 특성화된 프로그램의 개발을 통해 방문객들의 만족도를 향상시켜 축제의 가치를 높이는 방안이 검토되어야 할 것이다. This article estimates the total evaluation of the festival and investigates the determinants of visitors' WTP(willingness to pay) for the festival. Hi Seoul Festival is a way to introduce Korean culture to other foreigners as well as to serve as an economic and cultural stimulus for Seoul. A contingent evaluation survey was conducted and a total of 763 useful samples were collected. The results show that the evaluation of the festival were different across three different WTPs which were calculated as 2,846 won, 3,321 won, and 4,838 won. The annual total benefits value is calculated as 433.767 billion Korean won. And visitors' sex and visitors' satisfaction(keep up festival, need to modify) was a important determinants of the WTP for a visit. These findings may provide guidance managers and practitioners who help maintain the Hi festival.

        • SCIESCOPUSKCI등재
        • SCIESCOPUSKCI등재

          Four Human Cases of Diphyllobothrium nihonkaiense (Eucestoda: Diphyllobothriidae) in China with a Brief Review of Chinese Cases

          Cai,,Yu-Chun,Chen,,Shao-Hong,Yamasaki,,Hiroshi,Chen,,Jia-Xu,Lu,,Yan,Zhang,,Yong-Nian,Li,,Hao,Ai,,Lin,Chen,,Hai-Ning The Korean Society for Parasitology 2017 The Korean Journal of Parasitology Vol.55 No.3

          We described 4 human infection cases of zoonotic fish-tapeworm, Diphyllobothrium nihonkaiense, identified with morphological and molecular characters and briefly reviewed Chinese cases in consideration of it as an emerging parasitic disease in China. The scolex and mature and gravid proglottids of some cases were seen, a rosette-shaped uterus was observed in the middle of the mature and gravid proglottids, and the diphyllobothriid eggs were yellowish-brown in color and displayed a small knob or abopercular protuberance on the opposite end of a lid-like opening. The average size of the eggs was recorded as $62-67{\times}42-45{\mu}m$. The parasitic materials gathered from 4 human cases were morphologically identified as belonging to the genera Diphyllobothrium and Adenocephalus. The phylogenetic analysis based on the nucleotide sequences of cytochrome c oxidase subunit 1 gene of the etiologic agents confirmed that the 4 cases were D. nihonkaiense infection. The finding of 4 additional D. nihonkaiense cases suggests that D. nihonkaiense might be a major causative species of human diphyllobothriasis in China. A combined morphological and molecular analysis is the main method to confirm D. nihonkaiense infection.

        • Family History of Cancer and Head and Neck Cancer Risk in a Chinese Population

          Huang,,Yu-Hui,Jenny,Lee,,Yuan-Chin,Amy,Li,,Qian,Chen,,Chien-Jen,Hsu,,Wan-Lun,Lou,,Pen-Jen,Zhu,,Cairong,Pan,,Jian,Shen,,Hongbing,Ma,,Hongxia,Cai,,Lin,He,,Baochang,Wang,,Yu,Zhou,,Xiaoyan,Ji,,Qinghai,Zho Asian Pacific Organization for Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.17

          Background: The aim of this study was to investigate whether family history of cancer is associated with head and neck cancer risk in a Chinese population. Materials and Methods: This case-control study included 921 cases and 806 controls. Recruitment was from December 2010 to January 2015 in eight centers in East Asia. Controls were matched to cases with reference to sex, 5-year age group, ethnicity, and residence area at each of the centers. Results: We observed an increased risk of head and neck cancer due to first degree family history of head and neck cancer, but after adjustment for tobacco smoking, alcohol drinking and betel quid chewing the association was no longer apparent. The adjusted OR were 1.10 (95% CI=0.80-1.50) for family history of tobacco-related cancer and 0.96 (95%CI=0.75-1.24) for family history of any cancer with adjustment for tobacco, betel quid and alcohol habits. The ORs for having a first-degree relative with HNC were higher in all tobacco/alcohol subgroups. Conclusions: We did not observe a strong association between family history of head and neck cancer and head and neck cancer risk after taking into account lifestyle factors. Our study suggests that an increased risk due to family history of head and neck cancer may be due to shared risk factors. Further studies may be needed to assess the lifestyle factors of the relatives.

        • KCI등재
        • KCI등재

          관광과 삶의 질의 관계

          김채옥(Cai Yu Jin), 송운강(Woon Gang Song) 한국관광연구학회 2006 관광연구저널 Vol.20 No.2

          The purpose of this paper is to research the relationship between tourism satisfaction and the quality of life(well-being) of non-institutionalized tourists. In results, tourism experiences of non-institutionalized tourists show a significant effect on tourism satisfaction, and tourism satisfaction also has a positive effect on subject well-being(SQOL) and psychological well-being(PQOL). Tourism experiences, however, do not directly influence on subject well-being and psychological well-being. Furthermore, Psychological well-being has a significant effect on subject well-being.

        맨 위로 스크롤 이동