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Volume 17, Issue 4
Displaying 1-40 of 40 articles from this issue
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YOSHIHIRO KOSEKI1969 Volume 17 Issue 4 Pages 633-638
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESSThe cryoprotective action of glycerol on the strain L cells was studied. Glycerol, even when present only in the cell interior or only in the surrounding medium, apparently furnishes the cells cryoprotection to some extent, but glycerol in the cell interior seems to be more effective than in the medium. Its presence both in the cell interior and in the medium is a requisite for perfect protection against freezethawing injury.View full abstractDownload PDF (686K) -
Studies on the Voges-Proskauer Reaction. I. Structure of Positive Substance in the Diacetyl ReactionTAMIO NISHIMURA, SHINZO TANABE, HIROSHIGE TOKU, TOMOYUKI KONO, YUZURU ...1969 Volume 17 Issue 4 Pages 639-649
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESSThe structural limitation of positive compounds in the Voges-Proskauer Reaction was investigated with guanidines, ureas, thioureas, formamidine and formaldoxime, using the α-naphthol alkaline and diacetyl solution. Only guanidino derivatives showed positive reaction among compounds tested above. Strongly positive compounds were asym-1, 1-dialkylguanidines. Especially, 1, 1-dimethylguanidine, 1-methyl-1-phenylguanidine and 1, 1-pentamethyl-eneguanidine had the highest absorbance at 535 mμ. Creatine which was usually used in this reaction, showed second higher absorbance. Monosubstituted guanidine gave always moderately positive reaction, and unsubstituted one was weakly positive. sym-1, 3-Dialkylguanidines such as 1, 3-dimethylguanidine was negative, suggesting that a free amidino group [chemical formula] would be necessary for the positive V-P reaction. This is further supported by the fact that tri-, tetra- and pentamethylguanidine also gave negative reaction. 8-Hydroxyquinoline could be used in place of α-naphthol in this reaction. Conditions for color development, stability of colored solution and the effect of pH on the wave length of λmax were studied.View full abstractDownload PDF (912K) -
TADASHI KANAI, MOTONOBU ICHINO, TAKASHI KOJIMA1969 Volume 17 Issue 4 Pages 650-652
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESS5, 6-Dihydroxy-5, 6-dihydro-2'-deoxyuridine (IIIa) and 5, 6-dihydroxy-5, 6-dihydrouridine (IIIb) were prepared via bromination of 2'-deoxyuridine (Ia) and uridine (Ib) respectively, followed by refluxing these unstable intermediates in the neutral conditions to replace the bromo group with the hydroxyl group. In the case of cytidine, however, the 5, 6-dihydroxy-5, 6-dihydro compound was not obtained by the same procedure as used for preparation of IIIa and IIIb from Ia and Ib.View full abstractDownload PDF (450K) -
KOICHI NAGATA1969 Volume 17 Issue 4 Pages 653-660
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESSChemical reactivities of the metal complexes of thiohydroxamic acids was investigated. By alkylation or acylation, all the metal complexes except the nickel complex was dissociated to the corresponding metal ions and derivatives of thiohydroxamic acid. The nickel complex was benzoylated without undergoing the dissociation in chilled sodium hydroxide. Sodium or zinc salts or some derivatives of benzothiohydroxamic acid underwent the Lossen rearrangement, and the rearrangement products were isolated. However, the nickel complex did not give the rearrangement products in alkaline solution because of the stability of the chelated structure. From those results, it was confirmed that the hydroxyimino group of thiohydroxamic acid is in the syn configuration to the sulfur atom and that the transition metal complexes possess the five-membered chelate structure as shown in formular [chemical formula] (M=metal ion) in the solid state.View full abstractDownload PDF (882K) -
KOICHI NAGATA1969 Volume 17 Issue 4 Pages 661-668
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESSSeveral compounds possessing both mercapto and hydroxyimino groups, such as 2-mercaptoacetophenone oxime, 3-mercaptopropiophenone oxime and 5-nitro-2-mercapto-benzaldehyde oxime, were prepared, and their reactivities with metal ions were compared with those of the corresponding ketones or aldehyde and those of thiohydroxamic acids. It was found that these compounds did not show any sensitive color reactions with Fe3+, Ti4+, UO2+2 and VO2+ and did not form stable Fe3+ and Cu2+ complexes, differing from thiohydroxamic acids, and that the conversions of the compounds possessing both carbonyl and mercapto group to the corresponding oximes did not give any effect on the sensitivities and selectivities.View full abstractDownload PDF (815K) -
NOBUYASU MIZUNO, MASARU AOKI, AKIRA KAMADA1969 Volume 17 Issue 4 Pages 669-676
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESSRelations between the properties of pyridoxine and pyridoxine 3, 4-diacylates and the changes of vehicles in percutaneous absorption were studied. a) Depilated skin : PIN is absorbed more rapidly than PIN-HCL. While, PIN showed a rapid change in blood level, PIN-DK, -DIK gave high blood level 24 hours after the application of the drugs. b) Normal skin : The normal skin cases for PIN, PIN-DK and -DIK showed the same blood level as depilated cases 8 or 24 hours after application of the drugs. The blood level of PIN did not decrease within 10 hours unlike the depilated skin.View full abstractDownload PDF (841K) -
AKIRA HANAKI, PRANOD XUMSAENG, TOHRU HINO, SANYA AKABOSHI1969 Volume 17 Issue 4 Pages 677-681
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESSThe effect of N-substituent on the stability in an aqueous solution of AET was studied. By the substitution, both the transguanylation and the cyclization were hindered. The reactive species of N-Et-AET, and probably of N'-Et-AET, for the transguanylation is the monoionic conjugate base. N'-Et-AET, being relatively stable in the presence of less than one equivalent alkali, may be dissociated through the two-steps ionization to the neutral conjugate base, which would be considered as one of the reactive species. The degree of the transformation of N-ethylated AET derivatives was as follows ; the transguanylation in the presence of 0.5 equivalent NaOH for 4 min at 15° : AET ; 0.95, N'-Et-AET ; 0.84, N'-Et-AET ; 0.27. the cyclization in 3 days at 30° : AET ; 0.95, N'-Et-AET ; 0.36, N'-Et-AET ; 0.29. The relationship between the transguanylation and the pH drop in the solution was discussed.View full abstractDownload PDF (583K) -
DAISUKE SATOH, SETSUKO KOBAYASHI, JUNKO MORITA1969 Volume 17 Issue 4 Pages 682-689
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESSTreatment of gitoxin (I) with alkyl chloroformate in pyridine gave rise to alkoxycar-bonylation of hydroxyl groups in the order of 4'''-, 16- and 3'''-positions analogously to acetylation to afford gitoxin 4'''-mono-, 4''', 16-di-and 3''', 4''', 16-trialkoxycarbonates (II, III, IV), but the further esterification encountered with more difficulties than the acetylation. Gitoxin 3''', 4'''-cyclocarbonate (V) was also prepared and the interconversion between 3'''-mono-and 4'''-monomethoxycarbonates (VIIa, IIa) and V was investigated. Alkyl pyrocarbonates showed a less selectivity in alkoxycarbonylation of I than alkyl chloroformates, resulting in the formation of V, 16-alkoxy-and 3''', 4'''-cyclocarbonyl-16-alkoxycarbonates (IX, VIII) besides II, III and IV. IX was also formed by partial hydrolysis of III and VIII with dilute alkali.View full abstractDownload PDF (923K) -
HIROMU MORI, KENYU SHIBATA, KIYOSHI TSUNEDA, MASANOBU SAWAI1969 Volume 17 Issue 4 Pages 690-698
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESSA novel synthetic method of preparation of the side chain of ecdysone, 22, 25-dihydroxycholestane side chain was developed. The sequence of this method was summarized as the procedures XI→XII→XIII→XIV→XVI→XVII (Chart 3)→XXV→XXVII→XXIX (Chart 5).View full abstractDownload PDF (1079K) -
TORAHIKO KISHIKAWA, YUJI OIKAWA, SHOJI TAKITANI1969 Volume 17 Issue 4 Pages 699-702
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESSCondensation of methyl (tri-O-acetyl-a-D-glucopyranosyl bromide) uronate with silver 2-pyridyl oxide in toluene gave methyl (2-pyridyl 2, 3, 4-tri-O-acetyl-β-D-glucopyranosid)-uronate (III). Removal of the protecting groups from III afforded the O-glucuronide of 2-hydroxy pyridine (V). The O→N rearrangement of the glucuronosyl residue in III was effected by refluxing the toluene solution of III in the presence of mercuric bromide. An attempt to hydrolyze V and VIII by the β-glucuronidase was made. It was found that whereas the O-glycoside (V) is hydrolysable by this enzyme, the N-glycoside (VIII) is completely inert to it. Acid-and alkali-catalyzed hydrolyses of V and VIII were also investigated.View full abstractDownload PDF (567K) -
KUNIO KOBAYASHI, MIKIO HONJO1969 Volume 17 Issue 4 Pages 703-708
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESSThe reaction of chloroform with liq. ammonia in a sealed vessel at high temperatures furnished adenine, purine, and 8-aminopurine in 5, 7 and 1% yields, respectively. Similarly, the reaction between ethyl orthoformate and liq. ammonia yielded adenine (21%), purine (14%) and 8-aminopurine (3%), A possible mechanism has been proposed for the reaction, which involves a polymerization of formimidoyl derivative rather than an intermediary formation of aminomalononitrile.View full abstractDownload PDF (644K) -
TETSUJI KAMETANI, HIDEO IIDA, TOYOHIKO KIKUCHI, MASAKATSU MIZUSHIMA, K ...1969 Volume 17 Issue 4 Pages 709-713
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESSDienone-phenol rearrangement of dienone (II) with concentrated sulfuric acid gave a cularine-type compound, 9-hydroxy-5, 6, 10-trimethoxy-1-methyl-1, 2, 3, 12, 12a-pentahydrobenzoxepino [2, 3, 4-i, j] isoquinoline (III), whose structure was assigned by spectroscopic method and its alternative synthesis of III from 1-(2-bromo-4-hydroxy-5-methoxybenzyl)-1, 2, 3, 4-tetrahydro-8-hydroxy-6, 7-dimethoxy-2-methylisoquinoline (XI). Moreover, this paper described the preparation of XI.View full abstractDownload PDF (603K) -
SHOSHIRO NAKAMURA, YASUKO MARUMOTO, HIROSHI YAMAKI, TOSHIO NISHIMURA, ...1969 Volume 17 Issue 4 Pages 714-721
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESSDownload PDF (865K) -
NOBORU NAKAI, JUN-ICHI HASE1969 Volume 17 Issue 4 Pages 722-728
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESS1. Four to six moles of sulfhydryl groups of yeast alcohol dehydrogenase were found to be high sensitivity for 5, 5'-dithiobis (2-nitrobenzoic acid) (DTNB). 2. There were two types of sulfhydryl groups in the active site of yeast alcohol dehydrogenase. Sulfhydryl groups of two of four active sites were easily modified by DTNB at 0°and the other were not. 3. Yeast alcohol dehydrogenase which was modified sulfhydryl groups of two of four active sites by DTNB, was fully restored in its enzyme activity by cysteine and was found to be the same conformation as the native enzyme. On the other hand, the enzyme which was modified more than two sulfhydryl groups in the active sites, was partially restored by cysteine, probably due to irreversibly conformational change. 4. DTNB competed with NAD for sulfhydryl group in the active site of yeast alcohol dehydrogenase.View full abstractDownload PDF (861K) -
TAMOTSU SAITOH, SHOJI SHIBATA1969 Volume 17 Issue 4 Pages 729-734
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESSFrom the root of licorice (Glycyrrhiza spp., Leguminosae) three new coumestan derivatives, named glycyrol, 5-O-methylglycyrol and isoglycyrol, have been isolated, whose structures have been established to be Ia, IIa and IIIa, respectively. Betulic acid was also obtained.View full abstractDownload PDF (689K) -
TAKUO OKUDA, KUNIHIRO KONISHI1969 Volume 17 Issue 4 Pages 735-737
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESSCoriose (D-altro-3-heptulose) (I) was synthesized by the lead tetraacetate oxidation of hydrolyzate of the mother liquor of 1, 3 : 5, 7-di-O-ethylidene-3-C-formyl-D-glycero-D-talo-heptitol-3 (1), 6-pyranose (IV) which was derived from 2, 4-O-ethylidene-D-erythrose (V) by the aldol condensation.View full abstractDownload PDF (475K) -
MINORU SEKIYA, CHIZUKO YANAIHARA1969 Volume 17 Issue 4 Pages 738-746
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESSIt has been found that after heating with a reagent, given by 5HCO2H·2N (C2H5)3, several barbituric acid derivatives were methylated at the 5-position. The reaction was revealed to proceed through an intermediate, 5, 5'-methylidynebis (barbituric acid), which had been previously known as the usual reaction product obtained by heating with formic acid. The reaction course was found to involve an interesting aspect that the reagent carries out a saturation of the carbon-carbon double bond at the 5-position followed by a reductive fission of the bond.View full abstractDownload PDF (1016K) -
MINORU SEKIYA, CHIZUKO YANAIHARA, JIRO SUZUKI1969 Volume 17 Issue 4 Pages 747-751
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESSBy means of heating in triethylammonium formate given by 5HCO2H·2N (C2H5)3, hydrogenation of 5-methylidene bond attached to barbituric acids was effected in general. The method was found to be convenient for preparation of 5-arylmethylbarbituric acids and some other 5-alkylbarbituric acids with certain advantages : good yield of the products and selectivity at the double bond of 5-position.View full abstractDownload PDF (678K) -
MINORU SEKIYA, CHIZUKO YANAIHARA, JIRO SUZUKI1969 Volume 17 Issue 4 Pages 752-755
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESSInvestigation on the thermal TEAF reaction with 5-(3-indolylmethylene) barbituric acid is described in view of the courses of the product formations. With such a compound, not only the previously reported reduction of its methylidyne but also the succeeding reductive fission of the resulting methylene was revealed to occur in the reaction.View full abstractDownload PDF (491K) -
HIROSHI IGETA, TAKASHI TSUCHIYA, MUTSUMI NAKAJIMA, TOSHIKO SEKIYA, YOK ...1969 Volume 17 Issue 4 Pages 756-762
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESS3-Hydroxypyridazine 1-oxide (I) and its methyl homologs (II), (III), and (IV) were submitted to electrophilic substitutions such as nitration and halogenation. Due to the additional polar effect of both N-oxide and hydroxyl groups, introduction of nitro group and halogen in 4-and/or 6-positions was successfully concluded. By heating with potassium hydrosulfide, nucleophilic substitution of the brominated compounds (XXXI and XXXVI) was also carried out, affording mercapto compounds (XXXII and XXXVII).View full abstractDownload PDF (871K) -
HIROSHI IGETA, TAKASHI TSUCHIYA, MUTSUMI NAKAJIMA, HIDEHARU YOKOGAWA1969 Volume 17 Issue 4 Pages 763-769
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESSNMR spectra of 3-hydroxypyridazine 1-oxides and their monomethylated derivatives were examined and structural propriety of their nitrated and halogenated products was confirmed by the analyses of the NMR spectra. Furthermore, in 3-hydroxypyridazine 1-oxides, predominance of enol form tautomer was proved by NMR data. The conclusion was also drawn by other spectral data (UV and IR).View full abstractDownload PDF (625K) -
AKIE NAKAMURA, MASAKO MAEDA, TOSHIO KINOSHITA, AKIO TSUJI1969 Volume 17 Issue 4 Pages 770-774
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESSIt was found that glucosamine-HCl reacted with p-nitrobenzaldehyde in pyridinemethanol solution to yield Schiff base and gave a blue color by addition of tetraethylammonium hydroxide solution. This new color reaction is selective for 2-amino-2-deoxy sugars and α-amino carbonyl compounds, such as aminoacetaldehyde, δ-aminolevulinic acid and α-aminoacetophenone. The microdetection methods for 2-amino-2-deoxy sugars and their derivatives were proposed and the reaction mechanism was investigated.View full abstractDownload PDF (630K) -
KIYOMI KIKUGAWA, TYUNOSIN UKITA1969 Volume 17 Issue 4 Pages 775-784
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESS2, 3'-Anhydro-1-(β-D-xylofuranosyl) uracil (IV) was allowed to react with sodium iodide in the presence of acetic acid. The major product isolated was proved to be 1-(5'-iodo-5'-deoxy-β-D-xylofuranosyl) uracil (V) whose structure was unambiguously established. The reaction of other halide ions on the anhydronucleoside (IV) furnished the same type of compounds, 1-(5'-chloro-5'-deoxy-β-D-xylofuranosyl) uracil (XVI) and 1-(5'-bromo-5'-deoxy-β-D-xylofuranosyl) uracil (XVII). By treatment of the compound (V) with silver acetate, 2, 3'-anhydro compound (IV) was recovered, and it was supposed that 2, 5'-anhydro-1-(β-D-xylofuranosyl) uracil (XII) initially produced was rearranged to the 2, 3'-anhydro compound (IV) by a nucleophilic attack of 3'-up hydroxyl function of XII at C2 carbon of the uracil moiety.View full abstractDownload PDF (1130K) -
KIYOMI KIKUGAWA, MOTONOBU ICHINO, TYUNOSHIN UKITA1969 Volume 17 Issue 4 Pages 785-797
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESSThe reactions of methyl iodide with 2, 2'-anhydro-1-(β-D-arabinofuranosyl) uracil (I) and 2, 3'-anhydro-1-(β-D-xylofuranosyl) uracil (VIII) afforded the products (II and IX) containing methyl and iodo groups, respectively. The structure of the product (II) was firmly established to be N3-methyl-2'-iodo-2'-deoxyuridine, and that of the product (IX) to be N3-methyl-1-(5'-iodo-5'-deoxy-β-D-xylofuranosyl) uracil. The reaction mechanism to afford the compound (IX) from VIII was assumed to proceed via an initial intermediate, quaternary salt (XXI), and followed by the second intermediate of a quaternary 2, 5'-anhydro compound (XXIII), which was formed by an intramolecular attack by 5'-hydroxyl function at the C2 carbon atom of the base moiety in XXI.View full abstractDownload PDF (1429K) -
KIYOMI KIKUGAWA, MOTONOBU ICHINO, TSUNEO KUSAMA, TYUNOSHIN UKITA1969 Volume 17 Issue 4 Pages 798-803
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESS1-(5'-Amino-5'-deoxy-β-D-xylofuranosyl) uracil (VIII) and N3-methyl-1-(5'-amino-5'-deoxy-β-D-xylofuranosyl) uracil (IX) were synthesized by catalytic reduction of the respective 5'-azido nucleosides, which were obtained by nucleophilic attack of 1-(3, '5'-epoxy-β-D-xylofuranosyl) uracil (IV) or 1-(5'-halogeno-5'-deoxy-β-D-xylofuranosyl) uracils (II) and N3-methyl-1-(3', 5'-epoxy-β-D-xylofuranosyl) uracil (V) or N3-methyl-1-(5'-iodo-5'-deoxy-β-D-xylofuranosyl) uracil (III) by lithium azide in dimethylformamide. The structures of the products (VIII and XI) were firmly established.View full abstractDownload PDF (770K) -
MASUMI KOISHI, NAOKO FUKUHARA, TAMOTSU KONDO1969 Volume 17 Issue 4 Pages 804-809
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
JOURNAL FREE ACCESSPolyphthalamide microcapsules were prepared by the interfacial polycondensation reactions between each of 1, 6-hexamethylenediamine and diethylenediamine and each of o-, m-, and p-phthaloyl dichlorides under various conditions. The size and size distribution of the microcapsules formed were determined and the factors affecting them were of studied. Favorable conditions were suggested to obtain the microcapsules of uniform size in a high yield.View full abstractDownload PDF (1137K) -
MINORU SEKIYA, CHIZUKO YANAIHARA1969 Volume 17 Issue 4 Pages 810-814
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
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TETSUJI KAMETANI, FUMIO SATOH1969 Volume 17 Issue 4 Pages 814-818
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
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KOJI KURODA, GENZO HASHIZUME, FUKIKO KUME1969 Volume 17 Issue 4 Pages 818-821
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
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SHUNICHI NAITO, MITSUO MIZUTANI1969 Volume 17 Issue 4 Pages 822-826
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
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AKIKO IKEKAWA, NOBUYOSHI KANENIWA1969 Volume 17 Issue 4 Pages 827-834
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
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KUNIO NAKAGAWA, HIROSHI ONOUE, KYOJI MINAMI1969 Volume 17 Issue 4 Pages 835-837
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
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SHIGERU GOTO, OSAMI TSUZUKI, SADAO IGUCHI1969 Volume 17 Issue 4 Pages 837-840
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
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MITSURU UCHIYAMA, MASAOKI SHIBUYA1969 Volume 17 Issue 4 Pages 841-843
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
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HARUO OGURA, TSUNEO ITOH, TAKASHI OKAMOTO, SATOSHI OMURA1969 Volume 17 Issue 4 Pages 844-846
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
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ZENICHI HORII, KOICHI MORIKAWA, ICHIYA NINOMIYA1969 Volume 17 Issue 4 Pages 846-848
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
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AKIO HOSHI, FUMIHIKO KANZAWA, KAZUO KURETANI1969 Volume 17 Issue 4 Pages 848-850
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
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HIROSHI HIKINO, KUNIO ITO, TSUNEMATSU TAKEMOTO1969 Volume 17 Issue 4 Pages 854-855
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
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ITIRO YOSIOKA, TAKEATSU KIMURA1969 Volume 17 Issue 4 Pages 856-857
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
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TSUTOMU MOMOSE, YOSUKE OHKURA, KAZUYA KOHASHI1969 Volume 17 Issue 4 Pages 858-859
Published: April 25, 1969
Released on J-STAGE: March 31, 2008
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