• Title/Summary/Keyword: The National Archives

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Quantitative Analysis by Derivative Spectrophotometry (III) -Simultaneous quantitation of vitamin B group and vitamin C in by multiple linear regression analysis-

  • Park, Man-Ki;Cho, Jung-Hwan
    • Archives of Pharmacal Research
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    • v.11 no.1
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    • pp.45-51
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    • 1988
  • The feature of resolution enhancement by derivative operation is linked to one of the multivariate analysis, which is multiple linear regression with two options, all possible and stepwise regression. Examined samples were synthetic mixtures of 5 vitamins, thiamine mononitrate, riboflavin phosphate, nicotinamide, pyridoxine hydrochloride and ascorbic acid. All components in mixture were quantified with reasonably good accuracy and precision. Whole data processing procedure was accomplished on-line by the development of three computer programs written in APPLESOFT BASIC language.

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Alkaloids are the sedative principles of the seeds of zizyphus vulgaris var spinosus

  • Han, Byung-Hoon;Park, Myung-Hwan
    • Archives of Pharmacal Research
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    • v.10 no.4
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    • pp.203-207
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    • 1987
  • Sedative principles of the seeds of Zizyphus vulgaris var. sphinosus have been characterized as sanjoinine-A (frangufoline), nuciferine and their congeners. Also, heat treatment of sanjoinine-A-produced a more active artifact, sanjoinine-Ahl, which provides a scientific basis for heat-processing (roasting) of this Oriental medicine.

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A Cholesterol Biosynthesis Inhibitor from Rhizopus oryzae

  • Kim, Hyun-Jung;Yim, Soon-Ho;Lee, Ik-Soo
    • Archives of Pharmacal Research
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    • v.27 no.6
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    • pp.624-627
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    • 2004
  • A bile acid derivative, methyl chalate (1), was isolated from EtOAc extract of the fungus Rhizopus oryzae as a cholesterol biosynthesis inhibitor. It showed moderate inhibitory activity on cholesterol biosynthesis in human Chang liver cells. Compound 1 exhibited inhibitory effect on the later step of cholesterol biosynthesis, indicating that its action mode is different from that of statins that act on the HMG-CoA reductase.

Antithrombotic activities of saponins from Ilex pubescens

  • Han, Yong-Nam;Baik, Soung-Kyung;Kim, Tae-Hee;Han, Byung-Hoon
    • Archives of Pharmacal Research
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    • v.10 no.2
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    • pp.115-120
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    • 1987
  • Methanol extract of Ilex pubescens roots prolonged bleeding time threefold, and inhibited the generation of malondialdehyde released during platelet aggregation inducted by thrombin. Through several purification procedures, its saponin, named ilexoside, was proved to be responsible for the antithrombotic activities of the plant. Ilexosides A, -D and -J and 24-carboxypomolic acid showed strong inhibitory activities on platelet aggregation induced by thrombin.

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Studies on the Chemical Constituents of Acanthopanax koreanum(ll)

  • Kim, Young-Ho;Chung, Bo-Sup;Ko, Young-Su;Han, Hee-Ja
    • Archives of Pharmacal Research
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    • v.11 no.2
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    • pp.159-162
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    • 1988
  • From the root bark of Acanithopanax koreanum, two polyacetylene compounds and one lignan compound were isolated and identified as falcarinon, falcarindiol and ariensin. Furthermore the steam bark also afforded methyl n-hexacosanoate, methyl linoleate and coniferin.

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Synthesis and Antiviral Activity of Novel C-Methyl Branched Cyclopropyl Nucleosides

  • Kwak, Eun-Yee;Hong, Joon-Hee;Park, Young-Jak;Choi, Bo-Gil
    • Archives of Pharmacal Research
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    • v.26 no.9
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    • pp.679-685
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    • 2003
  • A series of novel cyclopropyl nucleosides was synthesized using the highly stereoselective Simmons-Smith reaction starting from 1,2:5,6-di-Ο-isopropylidene-D-mannitol. The structural assignments of these nucleosides were determined by NMR studies and X-ray crystallography. All the synthesized nucleosides were assayed against several viruses.

Effect of Four Flavonoids on Blood Glucose of Rats

  • Ammar, Nagwa M.;Al-Okbi, Sahar Y.
    • Archives of Pharmacal Research
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    • v.11 no.2
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    • pp.166-168
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    • 1988
  • The effects of aglycones moring and quercetin and their corresponding glycosides quercitrin and rutin were studied on the blood glucose levels of rats. Quercetin and quercetrin caused hypoglycaemia in rats while rutin and morin showed almost no difference. Quercetin, which showed 50% pronounced hypoglycaemic effects, reduced significantly the blood glucose level of alloxan diabetic rats.

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Microbial Activity Analysis for the Selectively Sterilizing of Government-controlled Bulk Public Archives (대량 공공 기록물의 선별적 소독을 위한 미생물 활성도 분석 연구)

  • Kim, Dae Woon;Park, Ka Young;Kim, Ji Won;Kang, Dai Ill
    • Journal of Conservation Science
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    • v.34 no.6
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    • pp.443-458
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    • 2018
  • An archive is a collection of documents or records. Currently, most archived documents are made of paper. Paper is susceptible to biological damage and deterioration due to its material properties. To control the biological damage, treatment with chemical disinfectants and control of the storage environment are often used. In government-controlled bulk public archives, all documents are chemically sterilized before storage. However, an extremely large quantity of public records have been produced, and storage space and conservation management are gradually reaching their limits. In this study, 60 species of microbes were identified using a genetic method. We successfully applied the adenosine triphosphate (ATP) bioluminescence method to detect microbial contamination on paper documents. A calibration curve of the ATP bioluminescence as a function of the microbe quantity was obtained, and the microbial activity on non-sterilized paper archives from 1951 was analyzed using an ATP luminometer. It was found that the microbial activity was suppressed or reduced in climate-controlled storage environments at $22^{\circ}C$ and 55% relative humidity. We anticipate that these results will be used to establish selective sterilization systems for government-controlled bulk public archives.

Coumarins and Triterpenoid Glycosides from the Roots of Patrinia scabiosaefolia

  • Choi, Jae-Sue;Woo, Won-Sick
    • Archives of Pharmacal Research
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    • v.7 no.2
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    • pp.121-126
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    • 1984
  • From the roots of Patrinia scabiosaefolia Valerianaceae), scopoletin (1), esculetin (2), oleanonic acid (3), 3-O-.alpha.-L-rhamnopyranosyl (1.rarw.2)-.alpha.-l-arabinopyranosyl oleanolic acid (4) and 3-O-.alpha.-L- rhamnopyranosyl (1 .rarw. 2)-.alpha.-L-arabinopyranosyl header agenin (5) were isolated and characterized by spectral data.

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Acetonylidene americanin A, An artefact isolated from phytolacca americana

  • Woo, Won-Sick;Kang, Sam-Sik;Otto-Seligmann;Wagner, Hildebert
    • Archives of Pharmacal Research
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    • v.5 no.1
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    • pp.1-5
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    • 1982
  • From the seeds of Phytolacca americana, acentonylidene americanin. A was isolated and its structure elucidated mainly by spectroscopic methods. This compound is not a genuine constituent but formed in the tissue on heating with acetone.

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