• 제목/요약/키워드: Rubens

검색결과 19건 처리시간 0.023초

Starfish smooth muscle relaxing activity of SALMFamide isotype peptide and its analog derived from starfish, Asterias rubens

  • Anastasia Kubarova;Hye-Jin Go;Hye Young Oh;Nam Gyu Park
    • Fisheries and Aquatic Sciences
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    • 제25권11호
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    • pp.572-578
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    • 2022
  • An organism's physiological processes and behaviors are regulated by neuropeptides and hormone peptides. The first neuropeptide identified from echinoderms is SALMFamide. The two most well-studied SALMFamide neuropeptides are S1 and S2, which possess myoactivity on apical muscle, tube feet, and the cardiac stomach of starfishes. However, neuropeptide candidates identified from SALMFamide's precursor protein sequence have not been investigated. This study aims to compare the bioactivity of SALMFamide neuropeptides from the starfish Asterias rubens using various starfish muscle preparations. In this study, the bioactivity of the L-type SALMFamide neuropeptides from the starfish A. rubens, AYHTGLPFamide (SALMFa-A) and the derivative AYHSALMFamide (SALMFa-B) was investigated. The neuropeptides were applied on Asterias amurensis apical muscle, tube feet, which revealed that the neuropeptides exhibit relaxing activity on apical muscle but no activity on tube feet. The native SALMFa-A peptide had lower relaxing activity on the apical muscle compared to the derivative peptide SALMFa-B. The relaxing activity of two neuropeptides also was compared with those on the apical muscle of Patiria pectinifera, which revealed relaxing activity as well as SALMFamide-S1 and S2 neuropeptides. Moreover, the investigation of SALMFa-A and SALMFa-B peptides' bioactivity on P. pectinifera cardiac stomach muscle also showed slight relaxing activity.

Rubens의 작품을 통해 본 여자복식 -초상화를 중심으로- (The Women′s Costume in Robens' Works)

  • 이은숙
    • 복식문화연구
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    • 제1권1호
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    • pp.81-93
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    • 1993
  • This study concern abut the general costume of women in Rubens' works. And costume which expressed in rubens' Portrait works, was studied from the viewpoint of the Psychological. Most of the element of Renaissance costume had survived in the early of 17 century, thus women's costume were still voluminous. The influence of fashion leader nations in the europe was very great, the fashion of these nations show in a great number of nations' costume.

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잎말이나방과의 한국 미기록종 (IV) - 잎말이나방아과의 7미기록종 - (Newly Recorded Species of Tortricidae (Lepidoptera) for Korea (IV) - Seven Species of the Subfamily Tortricinae -)

  • 박규택;변봉규
    • 한국응용곤충학회지
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    • 제29권2호
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    • pp.113-122
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    • 1990
  • 금번 조사에서 잎말이나방아과의 작은모무늬잎말이, Homonopsis rubens Kuznetsov ; 회색무늬잎말이, Syndemis musculana(Hubner); 뒷날개검정잎말이, Tosirips perpulchranus (Kennel) ; 얼룩회색잎말이, Cnephasia cinereipalpana Razowski ; 갈색띠무늬잎말이, Pandemis monticolana Yasuda ; 낙엽꼬마잎말이, Gnorismoneura mesotoma (Yasuda); 금빛무늬꼬마잎말이, Pseudargyrotoza conwagana (Fabricius) 등 7종이 우리나라 미기록종으로 보고된다. 이들중 Syndemis Hubner, Tosirips Razowski, Cnephasia Curtis 등 3속 우리나라에서는 처음으로 기록되는 속들이다.

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감귤해충의 종합적방제에 관한 연구(2) 루비붉은좀벌(Anicetus beneficus)도입에 의한 루비깍지벌레 (Ceroplastes rubens)의 방제효과 (Studies on Integrated Control of Citrus Pests (2) Control of ruby states (Ceroplastes rubens) on citrus by introduction of a parasitic natural enemy, Anicetus beneficus (Hymenoptera, Encyrtidae))

  • 김홍선;문덕영;박중수;이승찬;;장영덕
    • 한국응용곤충학회지
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    • 제18권2호
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    • pp.107-110
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    • 1979
  • 기생봉인 루비붉은좀벌(Anicetus beneficus)을 1975년 일본에서 도입하여 제주도에 방사시키고 루비깍지 벌레 방제를 위한 생물학적 방법으로서의 가치를 평가한후 다음과 같은 결과를 얻었다. 1. 감귤의 주요해충인 루비깍지벌레는 년 1회 발생하였고 부화시류는 6월하순부터 8월초순이었고 부화최성기는 7월 중순이었다. 2. 루비붉은좀벌은 1975년 방사이래 16개 지역에 분포되었다. 3. 루비붉은좀벌의 기생율증가로 루비깍지벌레의 밀도가 현저하게 감소되었고 평균기생율은 1975년 $1.7\%$ 1976년 $14.\%$ 1977년 $31\%$ 1978연에는 $37\%$였다.

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북극 스발바드 군도 콩스피요르드에서 채집한 해조류 추출물의 항산화 활성 (Antioxidant Activity of Seaweed Extracts from Kongsfjorden, an Inlet in the Arctic's Svalbard Archipelago)

  • 이정임;김유아;공창숙;예성수;한태준;강성호;김지희;서영완
    • Ocean and Polar Research
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    • 제31권2호
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    • pp.213-218
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    • 2009
  • We examined the intracellular antioxidative effects of 20 Arctic seaweed extracts in Raw 264.7 cells. Each seaweed species was subjected to extraction using acetone/dichloromethane and methanol, respectively, after which the extracts were combined and used as the test sample. The antioxidant ability of all 20 seaweeds extracts was evaluated using four different activity tests, including the degree of occurrence of intracellular reactive oxygen species (ROS), $ONOO^-$, and lipid peroxidation in Raw 264.7 cells, as well as the extent of oxidative damage of genomic DNA purified from Raw 264.7 cells. Crude extracts from Monostroma obscurum, Alaria esculnta, Laminaria digitata, Desmarestia aculeata, Chorda filum, Ptilota seriata, Phycidrys rubens, Devaleraea ramentacea and Palmaria palmata exhibited significant scavenging effects on the generation of intracellular ROS. Among them, Monostroma obscurum and Phycidrys rubens significantly inhibited membrane lipid peroxidation and DNA oxidation. Moreover, Phycidrys rubens exhibited scavenging effects on peroxynitrite generated from SIN-1.

근대 초 네덜란드의 인쇄술과 미술의 융합: 루벤스와 보르흐트의 사례 (The Convergence of Fine Art and Printing Technology in the Early Modern Netherlands)

  • 정원
    • 디지털융복합연구
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    • 제18권5호
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    • pp.391-397
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    • 2020
  • 이 연구의 목적은 과거 서양에서 이루어졌던 예술과 기술, 과학의 융합 사례를 소개 하고 그 성공 요인을 점검하는데 있다. 연구에서는 16세기 네덜란드 안트베르펜에서 출판업을 수행했던 플랑탱 출판사가 화가들과의 협력 사례를 중심으로 분석한다. 플랑탱 출판사는 루벤스, 보르흐트 등의 화가들과 협력해 사업을 수행했고 결국 큰 성공을 거두었다. 이 협력 작업을 통해 화가들은 자신의 재능을 펼칠 새로운 매체를 발견하거나 아니면 그 재능의 가치를 높게 평가해주는 일자리를 확보할 수 있었다. 한편 출판업자는 혁신적인 기법을 도입하면서 경쟁사보다 수월하게 출판 시장을 점유해 나갈 수 있었다. 그리고 이러한 작업은 위대한 식물학 저술들의 출판이라는 결과도 낳았다. 17세기에 네덜란드가 식물학 연구의 중심지가 된 데는 정교한 삽화를 그려낸 화가와 그 지식을 효율적으로 구현해 낸 출판업자들의 숨은 노력이 있었다.

Analysis of the fracture of brittle elastic materials using a continuum damage model

  • Costa Mattos, Heraldo S.;Sampaio, Rubens
    • Structural Engineering and Mechanics
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    • 제3권5호
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    • pp.411-427
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    • 1995
  • The most known continuum damage theories for brittle structures are suitable to model the degradation of the material due to the deformation process and the consequent initiation of a macro-crack. Nevertheless, they are not able to describe the propagation of the crack that leads, eventually, to the breakage of the structure into parts that undergo rigid body motion. This paper presents a theory, formulated from formal arguments of Continuum Mechanics, that may describe not only the degradation but also the fracture of elastic structures. The modeling of such a discontinuous phenomenon through a continuous theory is possible by taking a cohesion variable, related with the links between material points, as an additional degree of kinematical freedom. The possibilities of the proposed theory are discussed through examples.

Visualizations of Relational Capital for Shared Vision

  • Russell, Martha G.;Still, Kaisa;Huhtamaki, Jukka;Rubens, Neil
    • World Technopolis Review
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    • 제5권1호
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    • pp.47-60
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    • 2016
  • In today's digital non-linear global business environment, innovation initiatives are influenced by inter-organizational, political, economic, environmental, technological systems, as well as by decisions made individually by key actors in these systems. Network-based structures emerge from social linkages and collaborations among various actors, creating innovation ecosystems, complex adaptive systems in which entities co-create value. A shared vision of value co-creation allows people operating individually to arrive together at the same future. Yet, relationships are difficult to see, continually changing and challenging to manage. The Innovation Ecosystem Transformation Framework construct includes three core components to make innovation relationships visible and articulate networks of relational capital for the wellbeing, sustainability and business success of innovation ecosystems: data-driven visualizations, storytelling and shared vision. Access to data facilitates building evidence-based visualizations using relational data. This has dramatically altered the way leaders can use data-driven analysis to develop insights and provide ongoing feedback needed to orchestrate relational capital and build shared vision for high quality decisions about innovation. Enabled by a shared vision, relational capital can guide decisions that catalyze, support and sustain an ecosystemic milieu conducive to innovation for business growth.

Magnetic resonance imaging appearance of foreign-body granulomatous reactions to dermal cosmetic fillers

  • Costa, Andre Luiz Ferreira;Caliento, Rubens;da Rocha, Glauber Bareia Liberato;Gomes, Joao Pedro Perez;Mansmith, Alison Jhisel Calle;de Freitas, Claudio Froes;Braz-Silva, Paulo Henrique
    • Imaging Science in Dentistry
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    • 제47권4호
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    • pp.281-284
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    • 2017
  • Foreign body granulomas can develop after the injection of various cosmetic filling materials into the facial area to flatten wrinkles. Clinically, reactive lesions are easily mistaken for soft-tissue neoplasms or cysts. This report presents a case of foreign body granuloma in a 52-year-old female patient complaining of a painless swelling in the nasolabial region. Both clinical and histological features are described, underscoring the diagnostic role of magnetic resonance imaging findings.

Characterization of six new complete mitochondrial genomes of Chiasmodontidae (Scombriformes, Percomorpha) and considerations about the phylogenetic relationships of the family

  • Igor Henrique Rodrigues-Oliveira;Rubens Pasa;Fabiano Bezerra Menegidio;Karine Frehner Kavalco
    • Genomics & Informatics
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    • 제21권1호
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    • pp.10.1-10.6
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    • 2023
  • The fishes of the Chiasmodontidae family, known as swallower fishes, are species adapted to live in deep seas. Several studies have shown the proximity of this family to Tetragonuridae and Amarsipidae. However, the phylogenetic position of this clade related to other Pelagiaria groups remains uncertain even when phylogenomic studies are employed. Since the low number of published mitogenomes, our study aimed to assemble six new mitochondrial genomes of Chiasmodontidae from database libraries to expand the discussion regarding the phylogeny of this group within Scombriformes. As expected, the composition and organization of mitogenomes were stable among the analyzed species, although we detected repetitive sequences in the D-loop of species of the genus Kali not seen in Chiasmodon, Dysalotus, and Pseudoscopelus. Our phylogeny incorporating 51 mitogenomes from several families of Scombriformes, including nine chiasmodontids, recovered interfamilial relationships well established in previous studies, including a clade containing Chiasmodontidae, Amarsipidae, and Tetragonuridae. However, phylogenetic relationships between larger clades remain unclear, with disagreements between different phylogenomic studies. We argue that such inconsistencies are not only due to biases and limitations in the data but mainly to complex biological events in the adaptive irradiation of Scombriformes after the Cretaceous-Paleogene extinction event.