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  • 1980-1984  (255)
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  • 11
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 12
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 29 (1981), S. 608-614 
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 13
    ISSN: 1432-1211
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The incidences of positive anti-erythrocyte autoantibodies (AEA) in New Zealand Black (NZB), C57BL/6, their F1, F2 hybrid, and the F1 × NZB backcross mice were 100, 0, 0, 17, and 51%, respectively. This finding is in keeping with the idea that a combined effect of one to three dominant predisposing NZB gene(s) and a single dominant modifying C57BL/6 gene regulates the AEA production. Studies suggested that the modifying locusAem-1 is loosely linked toMup-1 locus on chromosome 4, and the gene order isAem-1: Mup-1: Gpd-1. We analyzed the effects of theAem-1 locus on other autoimmune traits and found that the gene action ofAem-1 is unrelated to the spontaneous productions of dsDNA-specific antibodies, the retroviral gp70-anti-gp70 immune complexes and natural thymocytotoxic autoantibod ies and to the serum level of retroviral gp70. A significant association was observed between the negative AEA and the low (normal) serum IgM level in (C57BL/6 × NZB)F1 × NZB backcross mice. It remains to be determined whether theAem-1 locus also controls the serum IgM level.
    Type of Medium: Electronic Resource
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  • 14
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 2 (1983), S. 1939-1943 
    ISSN: 0392-6737
    Keywords: Photoluminescence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Due nuove bande di luminescenza sono state osservate in cristalli di CuAlS2 come-cresciuti, preparati mediante trasporto di iodio da Al2S3 e Cu2S. La banda con la minore lunghezza d'onda a 77 K appare a circa 2.95 eV, mostrando uno spostamento di spettro con l'intensità di eccitazione, ed è considerata come dovuta all'emissione di coppie donatore-accettore. A temperatura ambiente, l'emissione sembra diventare una transizione da donatore a buca libera. L'emissione con la maggiore lunghezza d'onda appare a 1.8 eV con una grande semiampiezza di 0.5 eV, ha una sua caratteristica banda di eccitazione ed è considerata dovuta ad un centro localizzato.
    Abstract: Резюме В кристаллах CuAlS2, приготовленных методом переноса иода из Al2S2 и Cu2S, наблюдаются две новых люминесцентных полосы. Коротковолновая полоса при 77 К появляерся 2.95 эВ, обнаруживая спектральный сдвиг с интенсивностью возбуждения. Полагается, что эта полоса обусловлена излучением доноракцепторных пар. При комнатной температуре излучение, по-видимому, изменяет переход, «донор-свободная дырка». Длинноволновое излучение появляется при 1.8 эВ с широкой полушириной 0.5 эВ, обладая собственной характеристической полосой возбуждения. Полагается, что это излучение обусловлено локализованным центром.
    Notes: Summary Two new luminescence bands have been observed in as-grown CuAlS2 crystals prepared by iodine transport from Al2S3 and Cu2S. The shorter-wave-length band at 77K appears at around 2.95 eV, showing a spectral shift with excitation intensity, and is considered to be due to a donor-acceptor pair emission. At room temperature, the emission seems to change to a donor-to-free-hole transition. The longer-wave-length emission appears at 1.8 eV with broad half-width of 0.5 eV, having its own characteristic excitation band, and is considered to be due to a localized centre.
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  • 15
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 2 (1983), S. 1933-1938 
    ISSN: 0392-6737
    Keywords: Photoluminescence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto I cristalli di CuGaS2 cresciuti per trasporto di iodio mostrano fotoluminescenza a temperatura ambiente a 2.45 eV e 1.44 eV. Si mostra che la distribuzione spettrale dell'emissione verde è relativamente ben descritta dalla curva calcolata per una transizione diretta da banda a banda con selezionek. Si è tentata la formazione dell'eterogiunzione tra cristalli di CuGaS2 trattati con zolfo e film amorfi di ZnS a bassa resistività, preparati mediante spruzzamento catodico a temperatura ambiente. La caratteristicaI–V del diodo mostra un comportamento rettificante, ma non si è osservata luminescenza per iniezione.
    Abstract: Резюме Кристаллы CuGaS2 о⇃наруживают при комнатной температуре фатолюминесценцию при 2.45 эВ и 1.44 эВ. Показывается что спектральное распределение зеленого излучения относительно хорошо описывется вычисленной кривой для прямого перехода зоназона сk-отбором. Исследуется образование гетероперехода между кристаллами CuGaS2 и аморфными пленками ZnS с низким сопротивлением, притотовленными распылением при комнатной температуре.I–V характеристика диода обнаруживает выпрямляющее, но инжекционная люминесценция не наблюдается.
    Notes: Summary CuGaS2 crystals grown by iodine transport exhibit room temperature photoluminescences at 2.45 eV and at 1.44 eV. The spectral distribution of the green emission is shown to be relatively well described by the calculated curve for a direct band-to-band transition withk-selection. The heterojunction formation has been tried between sulfur-treated CuGaS2 crystals and low-resistivity amorphous ZnS films prepared by sputtering at room temperature. TheI–V characteristic of the diode shows rectifying behaviour, but no injection luminescence has been observed.
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  • 16
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract The amino acid composition and sequence of the β-subunit of heat-labile enterotoxin (LT) purified from a porcine (LTp) strain, WT-1, of enterotoxigenic Escherichia coli was analysed, and the result was compared with that reported by Dallas and Falkow [Nature 288 (1980) 499-501] who deduced the amino acid sequence of LTp from data on the DNA sequence of a porcine strain, EWD299. The purified β-subunit of the LTp of WT-1 was carboxymethylated, succinylated, digested with chymotrypsin and subjected to high performance liquid chromatography (HPLC). The amino acid composition of the peptide peaks from the column were analysed and compared with the data reported by Dallas and Falkow. Only one fraction differed in amino acid composition from that reported, containing lysine instead of methionine. This fraction was found to consist of two peptides with the sequences Lys-Ser-Gly-Glu-Thr-Phe and Arg-Ile-Thr-Tyr. The former peptide is reported to have the sequence Met-Ser-Gly-Glu-Thr-Phe. Thus, the amino acid at position 43 from the N terminus of the β-subunit of LTp is lysine, not methionine as reported. This is the first report which studied the amino acid sequence of LTp analysed by protein toxin itself, not by DNA sequence analysis.
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  • 17
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 12 (1981), S. 0 
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Type of Medium: Electronic Resource
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  • 18
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 86 (1982), S. 2861-2866 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 19
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 87 (1983), S. 5301-5303 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
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  • 20
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 88 (1984), S. 5577-5582 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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