7251
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Ballesteros C, González R, Pennycook SJ, Chen Y. Optical and analytical transmission-electron-microscopy studies of thermochemically reduced MgO crystals. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 38:4231-4238. [PMID: 9946798 DOI: 10.1103/physrevb.38.4231] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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7252
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Chen Y, Hasegawa T, Kitamura S, Umeda S, Rikukawa H, Shindo S, Shino M, Imamura Y, Hata H, Nagasaka F. [A case of triple coronary bypass grafting at the age of 17 years for Kawasaki's disease]. RINSHO KYOBU GEKA = JAPANESE ANNALS OF THORACIC SURGERY 1988; 8:387-90. [PMID: 9301858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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7253
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Tong SY, Chen Y, Wu ZQ. Role of adsorption site on electron-energy-loss cross sections of single-layer substrate modes. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 38:2192-2195. [PMID: 9946516 DOI: 10.1103/physrevb.38.2192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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7254
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Chen Y. Tapered polarizing anisotropic fibers. OPTICS LETTERS 1988; 13:598. [PMID: 19745976 DOI: 10.1364/ol.13.000598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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7255
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Miki T, Nishisho I, Tateishi H, Chen Y, Kidd JR, Wu J, Pravtcheva D, Pakstis AJ, Takai S, Ruddle FH. D10S20, a previously unmapped RFLP (OS-3), is located on 10q near D10S4. Genomics 1988; 3:78-81. [PMID: 2906046 DOI: 10.1016/0888-7543(88)90163-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The locus recognized by the probe OS-3 is assigned to chromosome 10 both by Southern blot analysis of a panel of somatic cell hybrid DNAs and by genetic linkage to markers already assigned to chromosome 10. In Caucasians this probe recognizes a three-allele TaqI RFLP as well as two-allele BanII and RsaI RFLPs which are both in strong linkage disequilibrium with each other and with the TaqI RFLP. The D10S20 locus defined by this probe maps 5.5 cM distal to D10S4 on the long arm of chromosome 10. Because this human clone hybridizes with mouse genomic DNA, it will be useful in comparative mapping studies.
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7256
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Meng X, Chen Y, Cui Y, Cheng J. Diterpenoids from Rabdosia henryi. JOURNAL OF NATURAL PRODUCTS 1988; 51:812-816. [PMID: 21401152 DOI: 10.1021/np50058a034] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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7257
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Chen Y, Wu ZQ, Xu ML, Tong SY, Ho K, Wang X. Characterization of surface and resonance phonons for the Ni(001)-c(2 x 2) system. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 37:9978-9984. [PMID: 9944422 DOI: 10.1103/physrevb.37.9978] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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7258
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Kato K, Chen Y, Nakane A, Minagawa T, Fujieda K, Kimura T, Yamamoto K. Suppression of delayed-type hypersensitivity in mice pretreated with diethylstilbesterol: involvement of sex hormones in immunomodulation. J Leukoc Biol 1988; 43:530-8. [PMID: 2837526 DOI: 10.1002/jlb.43.6.530] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Delayed-type hypersensitivity (DTH) responses were suppressed in female mice treated with diethylstilbesterol (DES), a synthetic nonsteroidal compound possessing estrogenic activity, but not in male mice. Upon analysis of this DTH-suppression in DES-treated female mice by use of the macrophage migration inhibition (MI) assay, an in vitro correlate of DTH, suppressor adherent cells (i.e., macrophages) in the peritoneal cavity were found to play an important role in this DTH suppression. On the other hand, DES-induced suppression was observed in surgically castrated male mice with depressed plasma testosterone (TS) levels, but not in TS-treated female mice or in castrated male mice, which suggests that TS inhibited the DES suppression. These results provide evidence that DTH response may be modulated by sex hormones.
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7259
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Chen Y. The development of China's gerontology and a critical review of researches in the field. POPULATION RESEARCH (PEKING, CHINA) 1988; 5:33-9. [PMID: 12281606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
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7260
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Chen Y, Li WX, Yu SZ, Qian WH. Chang-Ning epidemiological study of children's health: I: Passive smoking and children's respiratory diseases. Int J Epidemiol 1988; 17:348-55. [PMID: 3403130 DOI: 10.1093/ije/17.2.348] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The effects of household exposure to cigarette smoke on hospitalization and incidence of respiratory illness were examined among 2227 children at Chang-Ning District, Shanghai Municipality, People's Republic of China. The passive smoking quantity was estimated by total daily cigarette consumption of family members and number of cigarettes smoked in the home. No mothers who smoked were found. A significant dose-response relationship of passive smoking to hospitalization for respiratory illness during the children's first 18 months of life was found, for which no confounding factors were discovered. The incidence density ratio of hospitalization for respiratory illness was 2.1 for children living in families including people who smoked 20 or more cigarettes a day compared with those living in non-smoking families. The children appeared to be more vulnerable in the first six months of life than in the 7-18 month period, and those with lower birth weight and the artificially fed were more susceptible. The cumulative incidence of bronchitis or pneumonia increased significantly with increasing cigarette smoking of family members, which persisted when sex, birthweight, nursery care, father's education, coal for cooking, and adult cases with chronic respiratory disease were taken into account. Family smoking status was not found to be significantly associated with the incidence of asthma, whooping cough, sinusitis and measles.
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7261
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Chen Y. Export of labour and transregional diversion of rural labour force. POPULATION RESEARCH (PEKING, CHINA) 1988; 5:1-9. [PMID: 12281602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
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7262
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Chen Y, Li CY, Wang BM, Shen D, Yu DJ. Study on fibroblast colony forming units derived from bone marrow of normal adults and untreated patients with acute nonlymphocytic leukemia. JOURNAL OF TONGJI MEDICAL UNIVERSITY = TONG JI YI KE DA XUE XUE BAO 1988; 8:87-8. [PMID: 3249345 DOI: 10.1007/bf02887800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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7263
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Chen Y, Zhao WL. [Polyethylene glycol as a promotor of germination of some medicinal plant seeds]. ZHONG YAO TONG BAO (BEIJING, CHINA : 1981) 1988; 13:14-5, 62. [PMID: 3203432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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7264
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Ballesteros C, González R, Chen Y. Optical and transmission-electron-microscopy characterization of metal precipitates in doped thermochemically reduced magnesium oxide. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 37:8008-8014. [PMID: 9944130 DOI: 10.1103/physrevb.37.8008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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7265
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Cingolani R, Chen Y, Ploog K. Spectroscopic investigation of many-body effects in GaAs/Al x Ga1−x As superlattices. ACTA ACUST UNITED AC 1988. [DOI: 10.1007/bf02453294] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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7266
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Stevenson J, Brown BA, Chen Y, Clayton J, Kashy E, Mikolas D, Nolen J, Samuel M, Sherrill B, Winfield JS, Xie ZQ, Julies RE, Richter WA. Search for the exotic nucleus 10He. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1988; 37:2220-2223. [PMID: 9954691 DOI: 10.1103/physrevc.37.2220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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7267
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Grote R, Chen Y, Zeeck A, Chen ZX, Zähner H, Mischnick-Lübbecke P, König WA. Metabolic products of microorganisms. 243. Pyridazomycin, a new antifungal antibiotic produced by Streptomyces violaceoniger. J Antibiot (Tokyo) 1988; 41:595-601. [PMID: 3384747 DOI: 10.7164/antibiotics.41.595] [Citation(s) in RCA: 53] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Pyridazomycin, a new antifungal antibiotic produced by Streptomyces violaceoniger sp. griseofuscus (strain Tü 2557), was detected in a selective screening against Mucor hiemalis (Tü 179/180). The amino acid side chain of 1 can be seen as L-ornithine, whose gamma-nitrogen atom is part of a pyridazine ring building a quaternary ammonium system. The structure of 1 was established by spectroscopic analysis of the parent compound and degradation products. The occurrence of a pyridazine ring in microbial secondary metabolites is unique.
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7268
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Pique JP, Engel YM, Levine RD, Chen Y, Field RW, Kinsey JL. Broad spectral features in the stimulated emission pumping spectrum of acetylene. J Chem Phys 1988. [DOI: 10.1063/1.454510] [Citation(s) in RCA: 52] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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7269
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Xuan JC, Lin GD, Jin GZ, Chen Y. [Relevance of stereo and quantum chemistry of four tetrahydroprotoberberines to their effects on dopamine receptors]. ZHONGGUO YAO LI XUE BAO = ACTA PHARMACOLOGICA SINICA 1988; 9:197-205. [PMID: 3213537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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7270
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González R, Chen Y, Abraham MM. Transmutation-induced tritium in LiNbO3 single crystals. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 37:6433-6435. [PMID: 9943887 DOI: 10.1103/physrevb.37.6433] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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7271
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Chen Y, Gil B, Lefebvre P, Mathieu H. Exchange effects on excitons in quantum wells. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 37:6429-6432. [PMID: 9943886 DOI: 10.1103/physrevb.37.6429] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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7272
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Chen Y. Cepstral domain talker stress compensation for robust speech recognition. ACTA ACUST UNITED AC 1988. [DOI: 10.1109/29.1547] [Citation(s) in RCA: 60] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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7273
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Abstract
Foliar urea application on barley plants increased leaf urease activity for 5 hours with a peak of 20-fold at 2 hours. To discern the mode of urease induction, urea with or without inhibitors and [(35)S]methionine were incubated with leaf sections for different lengths of time. Urease was extracted, partially purified, electrophoresed, and then quantified by fluorogram. Five urease (U) isozymes were separated by PAGE. U(a) and U(b) might be polymers or complexes that occurred only at the peak of induced activity. U(1) and U(2) appeared at 0.5 and 0.75 hour, respectively, after urea induction, peaked at 2 hours, and persisted only in treated leaves for several additional hours indicating that they are transient inducible forms. U(3) was the constitutive form present in control and treated leaves. Induction with cordycepin or cycloheximide completely prevented urea stimulated activity and nullified the existence of isozymes U(a), U(b), U(1), and U(2). (35)S-U(1), which was labeled in the last hour of induction, appeared on fluorogram 1 hour after induction, peaked at 2 hours, and declined at 3 hours. Results indicated that de novo synthesis of urease is activated by the influx of urea.
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7274
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Cain LS, Pogatshnik GJ, Chen Y. Optical transitions in neutron-irradiated MgAl2O. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 37:2645-2652. [PMID: 9944817 DOI: 10.1103/physrevb.37.2645] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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7275
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Chi LG, Chen Z, Chen Y. [Effects of Adonis pseudoamuensis W. T. Wang on cardiac function]. YAO XUE XUE BAO = ACTA PHARMACEUTICA SINICA 1988; 23:91-5. [PMID: 3188926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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