• Title/Summary/Keyword: Baek Rin

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A Study on the Life and Research Horizons of a Librarian Baek Rin(白麟) (사서(司書) 백린(白麟)의 삶과 연구 지평)

  • Min-Heui Lee
    • Journal of Korean Library and Information Science Society
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    • v.55 no.3
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    • pp.213-239
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    • 2024
  • This study comprehensively reconstructs the life of Baek Rin (1923-2015), who dedicated 43 years of his life as a university librarian, and provides an overview of his influence on the development of library science and his academic achievements. After passing the librarian recruitment exam at Seoul National University in 1948, he excelled as a librarian, handling various Korean, Chinese, Japanese, and Western literary materials. During the Korean War, he was in charge of the practical tasks of transporting and storing the National Treasures from Gyujanggak to Busan. After the war, he was responsible for organizing, cataloging, and classifying the books of Gyujanggak at Seoul National University. He prepared the initial drafts of book classification and served as an executive in several organizations, including the Korean Library Association. While teaching at universities after obtaining a master's degree in library science from Yonsei University, he published 49 academic articles and 7 edited and authored books. It is highly regarded that he was the first scholar to chronologically write the history of libraries in Korea. In 1973, he transferred to Harvard University's Yenching Library as a Korean studies cataloging librarian, and until his retirement in 1991, he cataloged East Asian classical texts and Korean books at Harvard's Yenching Library and supported the research of professors there. Baek Rin is a first-generation research librarian and teacher who laid the foundation for the barren Korean library science world.

Search for Plant Extracts with Protective Effects of Pancreatic Beta Cell against Oxidative Stress (산화적 스트레스에 대한 췌장 베타 세포 보호활성 식물추출물 탐색)

  • Lee, Dong-Sung;Jeong, Gil-Saeng;An, Ren-Bo;Li, Bin;Byun, Erisa;Kim, Youn-Chul
    • Korean Journal of Pharmacognosy
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    • v.39 no.4
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    • pp.335-340
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    • 2008
  • Diabetes mellitus is metabolic disorder characterized by hyperglycemia caused by insufficient insulin secretion or insulin receptor insensitivity to endogenous insulin. It is well-known that hyperglycemia is one of the main causes of oxidative stress in both type 1 and 2 diabetes. Oxidative stress is related by death of pancreatic ${\beta}$ cell and dysfunction of ${\beta}$ cell. Although ${\beta}$ cell death or dysfunction is induced by many substances or molecules, increased evidences that oxidative stress plays a crucial role in ${\beta}$ cell death or dysfunction. Considering the importance of oxidative stress in the pathogenesis of diabetes mellitus, we investigated the cytoprotective effects against hydrogen peroxide-induced oxidative stress in pancreatic ${\beta}$ cell line RIN-m5F cell. 110 Plant sources were collected in Mt. Baek-du, and extracted with methanol. These extracts had been screened the protective effects against hydrogen peroxide-induced oxidative damage in RIN-m5F cells at 50 and 200 ${\mu}g$/ml. Of these, ten methanolic extracts, aerial part of Erigenron cannadensis, aerial part of Lespedeza juncea, whole plant of Alopecurus aequalis, fruit of Lycium chinense, leaf of Morus alba, rhizome of Polygonatum odoratum, root of Ampelosis japonica, whole plant of Ranunculus japonicus, aerial part of Polygonum sieboldii, rhizome of Arisaema amurense var. violaceum showed significant protective effects against hydrogen peroxide-induced oxidative damage in pancreatic ${\beta}$ cell line RIN-m5F cell.

Fabrication of All-Solution Processed Transparent Silver Nanowire Electrode Using a Direct Printing Process

  • Baek, Jang-Mi;Lee, Rin;Seong, Myeong-Mo
    • Proceedings of the Korean Vacuum Society Conference
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    • 2013.02a
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    • pp.641-641
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    • 2013
  • We report the transparentsilver nanowire electrode fabricated by a direct printing process, liquid-bridge-mediated nanotransfer molding. We fabricated silver nanowire arrays by liquidbridge- mediated nanotransfer molding using the silver nanoparticle ink and PEDOT:PSS polymer. Weinvestigated the formation of silver nanowire arrays by SEM and transmittance of the transparent silver nanowire electrode. We also measured the conductivity to confirm the potential of our approach.

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Propranolol attenuates calorie restriction- and high calorie diet-induced bone marrow adiposity

  • Baek, Kyunghwa;Park, Hyun-Jung;Hwang, Hyo Rin;Baek, Jeong-Hwa
    • BMB Reports
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    • v.47 no.10
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    • pp.587-592
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    • 2014
  • We investigated the effects of ${\beta}$-adrenergic activation on bone marrow adiposity and on adipogenic differentiation of bone marrow mesenchymal stem cells (BMSCs). C57BL/6 mice were subjected to a control (CON), high calorie (HIGH) or low calorie (LOW) diet for 12 weeks. In each group, mice were treated with vehicle (VEH) or propranolol. The number of adipocytes per area bone marrow was increased in LOWVEH and HIGHVEH mice compared with CONVEH mice, which was attenuated by propranolol. Isoproterenol increased lipid droplet accumulation and adipogenic marker gene expression in 3T3-L1 preadipocytes and mouse BMSCs, which were blocked by propranolol. Conditioned medium obtained from MC3T3-E1 osteoblasts suppressed adipogenic differentiation of 3T3-L1 cells, which was significantly attenuated by treatment of MC3T3-E1 cells with isoproterenol. These data suggest that ${\beta}$-adrenergic activation enhances bone marrow adipogenesis via direct stimulation of BMSCs adipogenesis and indirect inhibition of osteoblast anti-adipogenic potential.

Synthesis of ${\beta}$-Acetyl-${\beta}$-benzoylstyrene Derivatives and Their Adducts of Piperidine (${\beta}$-아세틸-${\beta}$-벤조일스티렌 유도체와 그들의 피페리딘 첨가생성물의 합성)

  • Tae-Sung Huh;In-Sook Baek;Tae-Rin Kim
    • Journal of the Korean Chemical Society
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    • v.31 no.4
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    • pp.369-372
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    • 1987
  • Five N-(2-acetyl-2-benzoyl-1-phenylethyl) piperidine derivatives (2a-2e) were synthesized from piperidine, benzoylacetone and benzaldehyde derivatives. Five ${\beta}$-acetyl-${\beta}$-benzoylstyrene derivatives (3a-3e) were synthesized from their adducts of piperidine derivatives. The structures of these compounds were confirmed by means of elemental analyses, ir and nmr spectra.

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Analyzing the Customers' Intentions of Purchasing Weather Index Insurance (지수형 날씨보험 가입의향에 대한 분석)

  • Park, Ki-Jun;Hwang, Jin-Tae;Cho, Jae-Rin;Kim, Baek-Jo;Kim, In-Gyum
    • Journal of Environmental Science International
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    • v.23 no.2
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    • pp.171-180
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    • 2014
  • This study provides the empirical results of the customers' necessity and intentions of purchasing weather index insurance using survey of asking the customers' recognition about weather insurance. In this article, we discovered that not only the customers' past experience of loss but also the extent of damage and the effects that change in weather would have on their firm are positively related to an intention to purchase weather index insurance. In addition, the level of premiums was significantly higher for the highly-intended group of willing to purchase weather index insurance than the comparison group.