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  • 1990-1994  (6)
  • 1970-1974  (3)
  • 1880-1889
  • 1990  (6)
  • 1973  (3)
Datenquelle
Materialart
Erscheinungszeitraum
  • 1990-1994  (6)
  • 1970-1974  (3)
  • 1880-1889
Jahr
Schlagwörter
  • 1
    Digitale Medien
    Digitale Medien
    Rapid Granular Flows (1990)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Fluid Mechanics 22 (1990), S. 57-90 
    Details
    ISSN: 0066-4189
    Quelle: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Thema: Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1146/annurev.fl.22.010190.000421
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Bimetallic Surface Chemistry (1990)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Physical Chemistry 41 (1990), S. 775-837 
    Details
    ISSN: 0066-426X
    Quelle: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Thema: Chemie und Pharmazie , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1146/annurev.pc.41.100190.004015
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  • 3
    Digitale Medien
    Digitale Medien
    The secretion of amylase, phospholipase and protease from Aeromonas salmonicida, and the correlation with membrane-associated ribosomes (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish diseases 13 (1990), S. 0 
    Details
    ISSN: 1365-2761
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie , Medizin
    Notizen: Abstract. The following extracellular enzymes have been readily detected in the culture filtrates from Aeromonas salmonicida: amylase, phospholipase, lysophospholipase and ribonuclease. Amylase and phospholipase have been partially characterized. Evidence suggests that glycogen may be the natural substrate for amylase, and that the role of the enzyme in natural infection is to digest glycogen present in fish muscle. The secretion of amylase activity is suppressed by the addition of glucose to the growth medium. The amounts of amylase, phospholipase and protease that can be detected in culture filtrates decreases with increase in the growth temperature from 25 to 32°C. This marked decrease in secretion of hydrolytic enzymes occurs although the initial growth rates at 25 and 32°C are similar. Free and membrane associated ribosomes have been isolated from cultures grown at 25 and 32°C. At 32°C there is a smaller proportion of membrane-associated ribosomes and this is consistent with the hypothesis that extracellular enzymes from Aeromonas salmonicida are secreted on membrane-bound polysomes.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2761.1990.tb00805.x
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  • 4
    Digitale Medien
    Digitale Medien
    Beef cattle reproduction in the wet tropics (1973)
    Springer
    International journal of biometeorology 17 (1973), S. 135-139 
    Details
    ISSN: 1432-1254
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Geographie , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01809799
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  • 5
    Digitale Medien
    Digitale Medien
    Foot-and-mouth disease virus: Protection induced in infected mice by two orally-administered interferon inducers (1973)
    Springer
    Archives of virology 42 (1973), S. 102-105 
    Details
    ISSN: 1432-8798
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01250512
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  • 6
    Digitale Medien
    Digitale Medien
    Thermal and optical studies on some monomer and polymer diacetylenes (1990)
    Springer
    Journal of thermal analysis and calorimetry 36 (1990), S. 1669-1674 
    Details
    ISSN: 1572-8943
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Beschreibung / Inhaltsverzeichnis: Zusammenfassung Es werden thermische und optische Studien einiger Diacethylene beschrieben, die zwecks der Senkung der Temperatur für das Auftreten von Mesophasen eigens gestaltet wurden. Ursprüngliche Untersuchungen an symmetrischen Molekülen wurden erweitert, um auch typische Flüssigkeitskristallmoleküle mit Diacethylenen mit Polymerhauptketten und unsymmetrisch substituierte Diacethylene wie Schiff-Basen mit langen Alkylketten einzubeziehen.
    Notizen: Abstract We describe the thermal and optical studies of some diacetylene molecules which were specially designed in an attempt to reduce the temperature at which the mesophase appears. Original studies were on symmetrical molecules and these were extended to include typical liquid crystal molecules with diacetylenes providing a polymeric backbone and unsymmetrically substituted diacetylenes including Schiffs bases with long alkyl chains.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01913413
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  • 7
    Digitale Medien
    Digitale Medien
    Sex attractant pheromone of damson-hop aphid Phorodon humuli (Homoptera, aphididae) (1990)
    Springer
    Journal of chemical ecology 16 (1990), S. 3455-3465 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Pheromone ; sex ; attractant ; aphid ; Phorodon humuli ; Homoptera ; Aphididae ; nepetalactol ; monoterpenoid ; electrophysiology ; single cell recording ; mass spectrometry
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Behavioral studies using an olfactometer demonstrated that sexual females (oviparae) of the damson-hop aphid,Phorodon humuli, release a pheromone to which males respond. Volatiles produced by the oviparae were analyzed by coupled gas chromatography-single cell recording from the secondary rhinaria on the male antenna and showed the presence of one peak with major activity. Coupled gas chrornatography-mass spectrometry suggested a nepetalactol, which was shown to have the 4aR, 7S, 7aS stereochemistry by synthesis from the corresponding nepetalactone isolated from the labiate plantNepeta mussinii. Although the stereochemistry at carbon-1 is not yet established, a synthetic sample comprising ca. 70% 1S and 30% 1R attracted highly significant numbers of males to water traps placed within and adjacent to a hop garden. Initial studies also indicated attraction of males in both the olfactometer and in the field by volatiles from the primary host.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00982110
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  • 8
    Digitale Medien
    Digitale Medien
    Comparison of techniques for extracting volatile compounds from conifer needles (1990)
    Springer
    Journal of chemical ecology 16 (1990), S. 2713-2722 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Monoterpenes ; Abies grandis ; Picea pungens ; steam distillation ; extraction ; secondary chemicals ; grand fir ; blue spruce ; coefficient of variation ; MANOVA
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Five extraction techniques were used to obtain quantitative measurements of monoterpenes from blue spruce and grand fir needles. Multivariate analysis of variance indicated that there was a significant difference in the amount of each monoterpene extracted by using different techniques. For both species, an 8-hr steam distillation of 10 g of material yielded the greatest amount of each monoterpene. This technique was also the most reproducible in that the coefficients of variation were lowest. A rapid steam distillation was relatively effective for grand fir, but not for blue spruce. A CO2 extraction was unreliable for both species.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988080
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  • 9
    Digitale Medien
    Digitale Medien
    Giardiasis—A cause of vitamin B12 malabsorption (1973)
    Springer
    Digestive diseases and sciences 18 (1973), S. 384-390 
    Details
    ISSN: 1573-2568
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Three patients with giardiasis have been shown to have vitamin B12 malabsorption which returned to normal after eradication of the parasite. Radioactive vitamin B12 with sufficient amounts of biologically active intrinsic factor to exclude host intrinsic factor deficiency was administered. The subjects did not suffer from immunodeficiency states, and bacterial overgrowth did not appear to be a causative factor. The implications of this finding in relation to mechanisms of malabsorption in giardiasis are discussed. It is concluded that competition between parasite and host enterocyte is the most likely explanation for vitamin B12 malabsorption.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01071987
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