• 제목/요약/키워드: CoRI

검색결과 383건 처리시간 0.026초

백두대간 구룡령과 고직령의 나비군집 비교와 분포변화 (Comparison of Butterfly Communities between Guryongryeong and Gojigkyeong of the Baekdudaegan Mountain Range and the Changes in Their Distribution)

  • 김도성;오기석;박성준;최승세;이승혁
    • 한국응용곤충학회지
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    • 제54권3호
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    • pp.233-245
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    • 2015
  • 백두대간은 한반도의 다양한 생물 서식지이며 동물의 이동통로로 새로운 서식지로의 이주와 재서식을 하는데 중요한 역할을 할 것으로 기대되고 있다. 본 연구는 2013-2014년에 4월부터 9월까지 백두대간 구룡령(명계리)과 고직령(서벽리)의 나비군집을 모니터링 하고, 두 지역의 나비를 과거기록과 비교하여 분포지의 변화가 있는지를 알아보았다. 그 결과 명계리 65종 1098개체, 서벽리 63종 1161개체가 조사되었다. 두 지역의 비교에서 명계리에서만 출현한 종은 15종, 서벽리에서만 출현한 종은 13종으로 나타났다. 종 순위별 개체수에서는 명계리는 큰줄흰나비 127 (11.6%), 줄흰나비 100 (9.1%), 산제비나비 90 (8.2%), 서벽리는 뿔나비 146 (12.6%), 줄흰나비 134 (11.5%), 네발나비 69 (5.9%)종으로 나타났다. 그리고 3개체 이하를 보인 종은 명계리 24종, 서벽리 23종으로 나타나 높은 비율을 차지하였다. 두 지역의 유사도는 비교적 높게 나타나고 있을 뿐만 아니라 한국적색목록의 나비가 다수 분포하고 있으며, 출현종을 과거 분포자료와 비교한 결과 뚜렷한 변화는 없었다. 이에 백두대간의 나비는 아직까지 잘 보전되고 있는 것으로 보여 거시적으로 백두대간의 서식지 경관이 연속성을 유지하도록 하는 것이 필요하다.

대장균의 acetyl CoA carboxylase유전자의 클로닝 (Cloning of Acetyl CoA Carboxylase (fabE) in Escherichia coli)

  • 박완;송방호;홍순덕
    • 한국미생물·생명공학회지
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    • 제14권2호
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    • pp.181-186
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    • 1986
  • 대장균 염색체의 acetyl CoA carboxylase (fabE)영역 (염색체 지도상 72분 영역)의 유전자를 가진 결함형질도입 파아지를 분리했다 이 형질도입 파아지로부터 20 Md의 염색체 유래의 DNA를 분리하여 제한효소 지도를 작성했으며 이 영역에는 제한효소 Eco RI의 절단부위는 없었다. 형질도입 파아지 DNA의 제한효소 분해산물들은 pACYC 184 플라스미드 벡터에 재클로닝하여 fab E의 온도감수성 변이를 회복할 수 있는 수 종류의 플라스미드를 분리했다. 이들 플라스미드를 분석하여 fab E 유전자는 7, 4Md Bel II 단편상의 Hind III의 절단부위를 가진 3.4 Md Ban HI-Sal I 단편내에 존재함을 밝혔다.

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육방정 페라이트의 S-block 구조에 대한 연구 (A Study on the S-block Structure in Hexagonal Ferrites)

  • 신형섭;이종협;권순주
    • 한국세라믹학회지
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    • 제31권1호
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    • pp.62-68
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    • 1994
  • It is compared the structures of the S-block in the Ba-Co-Zn Y-type hexagonal ferrites (Ba2Co2-xZnxFe12O22, x=0~2) and the Co-Zn spinel ferrites (Co1-xZnxFe2O4, x=0~1) expressed by a hexagonal axis system (space group R3m). The structures have been refined with a Rietveld analysis of the powder X-ray diffraction pattern with high precision (Rwp<0.13, RI<0.03). The overal dimension of the S-block is slightly different from the 1/3 of a hexagonal spinel unit cell as follow: 1.6~2.0% longer c-axis, 1.3~1.6% shorter a-axis and about 1% smaller volume. Upto Zn:Co=1:1 in the Ba-Co-Zn Y-type hexagonal ferrites, the zinc substitute primarily the tetrahedral sites in the S-block. Beyond that the zinc seems to go into the T-block as well.

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대체지방으로 제조한 케이크의 품질 특성에 관한 연구 (The Study on the Quality Characteristics of Cake Prepared with Fat Substitute)

  • 우나리야;안명수
    • 한국식생활문화학회지
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    • 제19권5호
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    • pp.506-515
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    • 2004
  • This study was carried on the quality characteristics of cake prepared with Co(com oil) containing MCT(medium chain triglycerides), which is used as a fat substitute. In tile cake prepared with MCT-CO containing $10{\sim}30%$ MCT, the appearance and the degree of gelatinization were similar to those of cake prepared with NS-CO(non-substituted corn ell) Cake batter prepared with MCT-CO showed higher specific gravity and consistency than those of cake prepared with NS-CO and increased by increasing MCT contents. The baking loss of cake prepared with MCT-CO was more than that of cake prepared with NS-CO and increased by increasing MCT contents as well. The rheological properties of cake represented significant different by MCT substitution ratio(p<0.05). Gumminess, hardness and chewiness of cake prepared with MCT-CO containing $20{\sim}30%$ MCT were about 2 times higher than those of cake prepared with NS-CO, while springiness and cohesiveness showed similar pattern between the cake prepared with MCT-CO or NS-CO. In sensory evaluation, appearance. color and flavor of cake prepared with CO substituted by MCT up to 100% were better assessed and the taste was better in range of 30% MCT-CO but the texture was less accepted than that of cake prepared with NS-CO.

Differential Effects of Anti-IL-1R Accessory Protein Antibodies on IL-1α or IL-1β-induced Production of PGE2 and IL-6 from 3T3-L1 Cells

  • Yoon, Do-Young;Dinarello, Charles A.
    • BMB Reports
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    • 제40권4호
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    • pp.562-570
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    • 2007
  • Soluble or cell-bound IL-1 receptor accessory protein (IL-1RAcP) does not bind IL-1 but rather forms a complex with IL-1 and IL-1 receptor type I (IL-1RI) resulting in signal transduction. Synthetic peptides to various regions in the Ig-like domains of IL-1RAcP were used to produce antibodies and these antibodies were affinity-purified using the respective antigens. An anti-peptide-4 antibody which targets domain III inhibited 70% of IL-$1\beta$-induced productions of IL-6 and PGE2 from 3T3-L1 cells. Anti-peptide-2 or 3 also inhibited IL-1-induced IL-6 production by 30%. However, antipeptide-1 which is directed against domain I had no effect. The antibody was more effective against IL-$1\beta$ compared to IL-$1\alpha$. IL-1-induced IL-6 production was augmented by coincubation with PGE2. The COX inhibitor ibuprofen blocked IL-1-induced IL-6 and PGE2 production. These results confirm that IL-1RAcP is essential for IL-1 signaling and that increased production of IL-6 by IL-1 needs the co-induction of PGE2. However, the effect of PGE2 is independent of expressions of IL-1RI and IL-1RAcP. Our data suggest that domain III of IL-1RAcP may be involved in the formation or stabilization of the IL-1RI/IL-1 complex by binding to epitopes on domain III of the IL-1RI created following IL-1 binding to the IL-1RI.

HPAI-resistant Ri chickens exhibit elevated antiviral immune-related gene expression

  • Thi Hao Vu;Jubi Heo;Yeojin Hong;Suyeon Kang;Ha Thi Thanh Tran;Hoang Vu Dang;Anh Duc Truong;Yeong Ho Hong
    • Journal of Veterinary Science
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    • 제24권1호
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    • pp.13.1-13.11
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    • 2023
  • Background: Highly pathogenic avian influenza viruses (HPAIVs) is an extremely contagious and high mortality rates in chickens resulting in substantial economic impact on the poultry sector. Therefore, it is necessary to elucidate the pathogenic mechanism of HPAIV for infection control. Objective: Gene set enrichment analysis (GSEA) can effectively avoid the limitations of subjective screening for differential gene expression. Therefore, we performed GSEA to compare HPAI-infected resistant and susceptible Ri chicken lines. Methods: The Ri chickens Mx(A)/BF2(B21) were chosen as resistant, and the chickens Mx(G)/BF2(B13) were selected as susceptible by genotyping the Mx and BF2 genes. The tracheal tissues of HPAIV H5N1 infected chickens were collected for RNA sequencing followed by GSEA analysis to define gene subsets to elucidate the sequencing results. Results: We identified four differentially expressed pathways, which were immune-related pathways with a total of 78 genes. The expression levels of cytokines (IL-1β, IL-6, IL-12), chemokines (CCL4 and CCL5), type interferons and their receptors (IFN-β, IFNAR1, IFNAR2, and IFNGR1), Jak-STAT signaling pathway genes (STAT1, STAT2, and JAK1), MHC class I and II and their co-stimulatory molecules (CD80, CD86, CD40, DMB2, BLB2, and B2M), and interferon stimulated genes (EIF2AK2 and EIF2AK1) in resistant chickens were higher than those in susceptible chickens. Conclusions: Resistant Ri chickens exhibit a stronger antiviral response to HPAIV H5N1 compared with susceptible chickens. Our findings provide insights into the immune responses of genetically disparate chickens against HPAIV.

On the behavioural dependence of fuzzy concepts

  • Cutello, Vincenzo;Ursino, Piero
    • 한국지능시스템학회:학술대회논문집
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    • 한국퍼지및지능시스템학회 1993년도 Fifth International Fuzzy Systems Association World Congress 93
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    • pp.1044-1046
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    • 1993
  • The notion of behavioural dependence of fuzzy concepts is introduced. Examples are given along with first results concerning classical aggregation operators.

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한국어 오픈도메인 대화 시스템의 의인화 연구: 사회적 변인에 따른 상대높임법 중심 (Study on Personification of Korean open domain Dialog system: Focusing on honorific expression under changes of social variations)

  • 최남규;민병철;조우리;민경은;정한결
    • 한국정보처리학회:학술대회논문집
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    • 한국정보처리학회 2022년도 추계학술발표대회
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    • pp.393-395
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    • 2022
  • 실제 대화에서는 다양한 화자와 청자간의 사회적 위치와 관계 등의 사회적 변인에 따라 다양한 상대높임법이 존재한다. 제안하는 상대높임법 중심의 대화시스템 아키텍처를 설명하기에 앞서 배경지식 및 관련연구로 규칙/코퍼스 기반 대화시스템을 소개하고, 상대높임법을 포함하는 공손법처리에 대한 기존 연구들의 제약사항을 논의한다. 본 연구에서는 한국어 상대높임법을 정의 및 사회적 변인 모델링하고 이를 구현하기 위한 대화시스템 아키텍처 방안을 제안한다.