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한국산 어리왕거미속의 2미기록종 (Two Orb Weavers of the Genus Neoscona (Araneae: Araneidae) from Korea)

  • 남궁준;김승태
    • 한국응용곤충학회지
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    • 제38권3호
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    • pp.213-216
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    • 1999
  • 최근 중국에서 신종기재된 Neoscona속(거미목: 왕거미과)의 2종 Neoscona minoriscylla(아기지이어리왕거미)와 Neoscona pseudonautica(어리집왕거미)를 한국미기록종으로 보고한다. 이로써 한국산 Neoscona속은 기지종 8종과 함께 10종이 된다.

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Two Alkaloids from Ephedra aphylla growing in Egypt

  • Abdel-Kader, Maged S.;Kassem, Fahima F.;Abdallah, Rokia M.
    • Natural Product Sciences
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    • 제9권2호
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    • pp.52-55
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    • 2003
  • The aerial parts of Ephedra aphylla afforded two alkaloids belonging to two different classes. The first alkaloid, ephedradine C, belonging to the spermine alkaloid, a group characterized by its hypotensive effect. The other alkaloid, hordenine is a phenylalkylamine alkaloid isolated for the first time from Ephedra Species. The structures were elucidated by spectroscopic methods and the assignment of some carbons in ephedradine C was achieved based on 2 D-NMR experiments.

선충포획균의 분리 및 동정 (Isolation and Indentification of Nematode-Trapping Fungi)

  • 박용근;이영록
    • 미생물학회지
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    • 제21권3호
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    • pp.127-134
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    • 1983
  • 42 strains belonging to the genus Arthrobotrys and 17 strains belonging to the genus Monacrosporium, were isolated from soil specimens collected from the various localities in South Korea. 4 species of Arthrobotry and 2 species of Monacrosporium, which are unrecorded in Korea, were identified according to the Harrd and Cooke classification key, respectively. The species identified are as follows ; A.conoides, A. oligospora, A. musiformis, A. oviformis, M. crystosporum nd M. salinum.

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New Records of Orthocentrinae (Hymenoptera, Ichneumonidae) from South Korea

  • Choi, Jin-Kyung;Humala, Andrei E.;Lee, Jong-Wook
    • Animal Systematics, Evolution and Diversity
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    • 제37권4호
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    • pp.340-344
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    • 2021
  • Two species, Plectiscus impurator Gravenhorst and Stenomacrus laticollis(Holmgren), of the subfamily Orthocentrinae are newly recognized from South Korea. This subfamily Orthocentrinae was represented in South Korea as 17 species belonging to four genera until now. In this paper, two additional species belonging to two genera are recorded for the first time from South Korea. Diagnoses of genera and two unrecorded species, illustrations of diagnostic characters are provided.

ON A CLASS OF ANALYTIC FUNCTION RELATED TO SCHWARZ LEMMA

  • Ornek, Bulent Nafi
    • 한국수학교육학회지시리즈B:순수및응용수학
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    • 제29권1호
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    • pp.113-124
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    • 2022
  • In this paper, we plan to introduce the class of the analytic functions called 𝒫 (b) and to investigate the various properties of the functions belonging this class. The modulus of the second coefficient c2 in the expansion of f(z) = z+c2z2+… belonging to the given class will be estimated from above. Also, we estimate a modulus of the second angular derivative of f(z) function at the boundary point 𝛼 with f'(𝛼) = 1 - b, b ∈ ℂ, by taking into account their first nonzero two Maclaurin coefficients.

한국인의 건강개념에 대한 탐색연구 : Q-방법론 적용 (A Study on Health Concepts of Korean)

  • 심형화
    • 한국간호교육학회지
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    • 제8권1호
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    • pp.108-119
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    • 2002
  • This paper as the basic study aiming the establishment of nursing theory according to Korean culture, is made to reveal the types of recognition about concepts of health immanent in Korean who have the health view, completely mixed with traditional oriental medicine and Confucianism and Buddhism and Shamanism and european scientific medicine, etc. This paper is using the Q-method, which is greatly effective in measuring the individual subjectivity, to collect rightly the concepts of health of objects. This analysis shows us the 4 types of recognition about concepts of health immanent in Korean as follows. Type Ⅰ: modern self-searching type(現代的 自己 追求型), Type Ⅱ: nature-sharing type(自然 共有型), Type Ⅲ: meaning-intentional altruism(意味 指向的 他者 中心型), Type Ⅳ: oriental adaptational type(東洋的 順應型). The men belonging to type Ⅰ have positive and self-searching view of health. They are not only interpreting the concept of health scientifically, but also positively accepting the oriental concept of health. The men belonging to type Ⅱ have strong tendency of down-to-earth. They not only have the naturalistic view of health as Taoist, but also carry the weight in the family and neighbour and regard co-sharing as excellent virtue. The men belonging to type Ⅲ are positive altruists, pursuing the meaning of life and at the same time setting the importance to the good value system. Naturally they care more the family and neighbour than themselves. The men belonging to type Ⅳ have oriental view of the world characterized by nature-adaptation. They positively agree to the Shamanism, Buddhism, Confucianism and Oriental concept of health. In conclusion, in all types we can see that Korean understand the harmony of man and nature as fundamental principle of heath and carry the more importance to the mind(心) than body(身) and at the same time esteem more the family-centric, oriental and organic community than individual. All above facts is immersed in the concepts of health of Korean as a common denominator.

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마루자주새우[Crangon hakodatei (Rathbun, 1902)]의 전장 미토콘드리아 유전체에 대한 분석 연구 (Complete Mitochondrial Genome of Crangon hakodatei (Rathbun, 1902) (Crustacea: Decapoda: Crangonidae))

  • 김경률;김현우
    • 한국수산과학회지
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    • 제49권6호
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    • pp.867-874
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    • 2016
  • Although shrimps belonging to family Crangonidae are known to be genetically divergent and ecologically important among the various benthos, any of their mitochondrial genome has not been reported yet. We here determined the complete mitochondrial genome sequence of Crangon hakodatei (Rathbun, 1902), which was collected from East China Sea ($124^{\circ}E$ and $34.5^{\circ}N$). Total mitochondrial genome length of C. hakodatei was 16,060 bp, in which 13 proteins, 2 ribosomal RNAs, 22 transfer RNAs and a putative control region were encoded. Secondary structure prediction analysis showed that twenty tRNA genes exhibit the conserved structure but two genes, $tRNA^{Cys}$ and $tRNA^{Ser}$ (AGN), lack T and D arm, respectively. Based on the sequence similarity of the COI region from the currently reported five species belonging to genus Crangonidae, C. hakodatei was most closely related to Crangon crangon. Phylogenetic analysis of full COXI genes belonging to infraorder Caridea showed that only crangonid shrimps were clustered together with those of Dendrobranchiata. Gene order were well conserved from Penaeoidea to Caridea but $tRNA^{Pro}$ and $tRNA^{Thr}$ in Palaemonid shrimp were flipped each other by the recombination. Further study about mitochondrial genome sequences of shrimps belonging to Crangonidae should be made to know better about their evolutional relationships with other those in infraorder Caridea.

Evaluation of the anti-inflammatory effects of silkworm (Bombyx mori L.) pupal extracts against lipopolysaccharide-induced inflammation in the murine macrophage cell line RAW264.7

  • Kamidi, Rahul;HaeYong, Kweon;Hun-bok, Kim;Ji Hae, Lee
    • International Journal of Industrial Entomology and Biomaterials
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    • 제45권2호
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    • pp.99-107
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    • 2022
  • Silkworm pupal extracts (SPE) were prepared in different solvents (water, 30%, 50%, 70%, and 100% ethanol) and their anti-inflammatory effects were evaluated in the RAW264.7 cell line. The SPE composition was initially evaluated by determining the protein content and performing Fourier transform infrared (FTIR) analysis. The protein content of the different SPE ranged from 6.75-130.93 mg/g of extract. FTIR analysis exhibited distinguishable absorption peaks among the extracts and indicated the presence of lipids, proteins, carbohydrates, and nucleic acid moieties. The levels of released nitric oxide (NO) and interleukin-6 (IL-6) expression in lipopolysaccharide (LPS)-induced RAW264.7 cells were only attenuated by 100% ethanolic SPE to 19.44% and 16.77%, respectively. The other solvent extracts were ineffective. Hence, further studies were conducted with 100% ethanolic SPE from three distinct stages of male and female silkworm pupae belonging to four silkworm varieties (Baegokjam; B, GoldenSilk; G, Juhwangjam; J, and YeonNokjam; Y). The best reduction in NO release and interleukin-1β (IL-1β) expression levels was achieved by the SPE of early female pupae belonging to the Baegokjam variety (32.72%) and those of early female pupae belonging to the Baegokjam and GoldenSilk (59.93%) varieties, respectively. The best reduction in IL-6 expression by 49.70% was achieved by SPE from female pupae of the mid-pupal stage belonging to the Baegokjam variety.

Defining Dusun Identity in Brunei

  • Kumpoh, Asiyah az-Zahra Ahmad
    • 수완나부미
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    • 제8권2호
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    • pp.131-159
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    • 2016
  • This qualitative study was designed to explore the definition of ethnic identity of the Dusuns in Brunei Darussalam from the perspective of Shamsul A.B.'s (1996) "everyday-defined" social reality. The purpose of this study was twofold. Firstly, by employing Phinney's (1996) formulation of ethnic identity, this study examined the existence of core components of ethnic identity, namely, ethnic self-identification, ethnic involvement, positive attitude towards ethnic group, and sense of belonging in the life of the Dusuns. Secondly, by utilizing Phinney's (1996) three-stage model of ethnic identity formation, this study investigated the relationship between core components and the formation process of ethnic identity. Twenty-six Dusun informants ranging in age from 8 to 80 years old were interviewed for the purpose of this study. The analysis of the interview data revealed that all core components exist and evolve in the life of the Dusuns. Different perspectives towards core components can also be identified across different age groups. Adult informants contested the relevance of ethnic involvement in view of socio-cultural transformations that occurred within the ethnic group, whereas younger Dusuns were not able to extend sense of belonging outside their family. These findings lead to the identification of family and historical contexts as influential factors that shape the ways the informants experienced the ethnic identity components. Further, the findings of this study indicate the relationship between core components and the formation process of ethnic identity. Sense of belonging and community is only evident in the experience of older informants, sufficient to help them reach the stage of achieving ethnic identity. This also shows a positive sequential relation between the stages in Phinney's ethnic identity model and the age of the informants. Interestingly, evidence on internalized sense of belonging reveals the fact that an individual could still attain ethnic identity achievement even without experiencing all components of ethnic identity. Once again, this study suggests contextual factors play a role in the stage progression of the Dusuns' ethnic identity.

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특수목적용 모바일 앱의 성공요인에 관한 실증연구: A 대학교 모바일 캠퍼스 앱을 중심으로 (An Empirical Study on Success Factors of Special-Purpose Mobile Applications: Focusing on the Mobile Campus Application of A University)

  • 조우철;임재익;양성병
    • 지식경영연구
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    • 제15권3호
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    • pp.13-36
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    • 2014
  • Recently, with the increasing popularity of smartphones, mobile applications have been being used in various sectors. In these environments, some mobile applications are being made for special purposes. The mobile campus application is one exemplary type of such special-purpose mobile applications, which have unique characteristics that allow only designated users, belonging to a specific group, to access and use relevant knowledge. The aim of this study is to identify and investigate critical success factors of mobile campus applications based on the DeLone & McLean's information systems (IS) success model and to find unique characteristics of mobile campus applications, compared to general-purpose mobile applications. In order to empirically test our research model, 199 samples were collected from students who actually had experience of using the mobile campus application of A university at least once. The findings of the structural equation modeling using SmartPLS 2.0 confirmed the DeLone & McLean's IS success model, with the exception for relationships between service quality and user satisfaction/intention to use. Moreover, the moderating role of sense of belonging to school on the relationships between quality-related factors (i.e., information, system, and service qualities) and success-related factors (i.e., user satisfaction and intention to use) was examined.

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