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  • 1
    Digitale Medien
    Digitale Medien
    Effect of Water Activity and Moisture Content on the Stability of Beet Powder Pigments (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 48 (1983), S. 0 
    Details
    ISSN: 1750-3841
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: The effect of water activity (“dry”– 0.84) and moisture content on the stability of beet pigments (betanine and vulgaxanthine I) was investigated in beet powder stored at 35°C. Pigment deterioration followed a first order reaction. Water activity and moisture content had a pronounced exponential effect on pigment stability. A decrease of approximately one order of magnitude in pigment stability was observed when aw was increased from 0.32 to 0.75. Storing the powder at aw of 0.12 or below resulted in practically no deterioration of the pigments over a period of several months. Profound differences in pigment stability were attributed to sorption hysteresis and system composition.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2621.1983.tb14879.x
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  • 2
    Digitale Medien
    Digitale Medien
    The Sociology of Tourism: Approaches, Issues, and Findings (1984)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Sociology 10 (1984), S. 373-392 
    Details
    ISSN: 0360-0572
    Quelle: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Thema: Sociologie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1146/annurev.so.10.080184.002105
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  • 3
    Digitale Medien
    Digitale Medien
    Expectation States and Interracial Interaction in School Settings (1982)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Sociology 8 (1982), S. 209-235 
    Details
    ISSN: 0360-0572
    Quelle: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Thema: Sociologie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1146/annurev.so.08.080182.001233
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  • 4
    Digitale Medien
    Digitale Medien
    Characteristics of Israeli Citrus Peel and Citrus Juice (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 49 (1984), S. 0 
    Details
    ISSN: 1750-3841
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: Data on the composition of Israeli orange juice, grapefruit juice, orange peel and grapefruit peel were analyzed. Significant differences were found mainly between the juice and peel in the content of isocitric acid, ash, minerals, total pectin, total flavonoids, chlorides, phosphates, chloramine-T number and arginine. The significance of these findings in detecting juice adulteration with peel extract solids is discussed. The chemical and amino acids characteristics of the citrus products analyzed may be used to establish guidelines required for detecting citrus juice adulteration.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2621.1984.tb10376.x
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  • 5
    Digitale Medien
    Digitale Medien
    Effect of Oxygen Retained on Beet Powder on the Stability of Betanine and Vulgaxanthine I (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 49 (1984), S. 0 
    Details
    ISSN: 1750-3841
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: The effect of oxygen retained on beet powder on the stability of betanine and vulgaxanthine I was studied at 35°C as a function of aw (“dry”-0.75). moisture content, added aluminium oxide powder and headspace gases (N2, air). Limited degradation was observed under N2 or air and aw± 0.41. Deterioration was accelerated at aw± 0.52 and the presence of added Al2O3. This was interpreted as a lack of liquid phase mobility which retarded the reaction up to ± 0.5 aw. Above 0.5 aw the transition in the mechanism was related to the concentration of the dissolved 02 in the liquid phase, which controlled the deterioration rate. The latter was strongly affected by the added Al2O3. In the presence of aluminium oxide, the very fast pigment oxidation suggested a catalytic reaction.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2621.1984.tb13679.x
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  • 6
    Digitale Medien
    Digitale Medien
    Naturally occurring hemagglutinins in the hemolymph of the scorpionParuroctonus mesaensis Stahnke (1983)
    Springer
    Cellular and molecular life sciences 39 (1983), S. 721-722 
    Details
    ISSN: 1420-9071
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary Lectins which bind sialic acid-containing receptors are present in the hemolymph of the scorpionParuroctonus mesaensis Stahnke. Glycoproteins like bovine submaxillary mucin, fetuin and human orosomucoid behave as strong inhibitors forParuroctonus lectins; desialylation of glycoproteins results in a drastic reduction of their inhibitory capabilities confirming that sialic acids are the terminal monosaccharides ofParuroctonus lectin receptors.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01990291
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  • 7
    Digitale Medien
    Digitale Medien
    Acetylcholinesterase activity in anAedes aegypti cell line (1981)
    Springer
    Cellular and molecular life sciences 37 (1981), S. 429-431 
    Details
    ISSN: 1420-9071
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary Considerable acetylcholinesterase (AChE) activity was detected in anAedes aegypti established cell line. The enzyme is blocked by 10−6 M eserine sulfate, displays excess substrate inhibition and slowly hydrolyzes butyrylthiocholine. A 2-fold stimulation of AChE activity was shown after 2 days exposure to 3×10−7 M β-ecdysone. AChE activity found in the fresh medium is the contribution of the fetal calf serum portion. A direct relationship between levels of serum and the AChE activity in the cultured cells was demonstrated.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01959903
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  • 8
    Digitale Medien
    Digitale Medien
    Serum lectins from the scorpionVaejovis spinigerus Wood bind sialic acids (1984)
    Springer
    Cellular and molecular life sciences 40 (1984), S. 485-487 
    Details
    ISSN: 1420-9071
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary We have partially characterized the specificity of serum lectins from the scorpionVaejovis spinigerus Wood. Agglutination, crossed-absorption and hemagglutination-inhibition patterns were similar but not identical to serum lectins from other members from the family Vaejovidae, and different from the Buthidae species studied so far.V. spinigerus serum lectins bind sialic acids and sialoconjugates, but also bind 2-keto-3-deoxyoctonate, uronic acids and N-acylaminosugars, all substances present in bacterial cell walls suggesting that they might be involved in defense functions.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01952398
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  • 9
    Digitale Medien
    Digitale Medien
    Transient renovascular hypertension in childhood (1984)
    Springer
    European journal of pediatrics 141 (1984), S. 254-255 
    Details
    ISSN: 1432-1076
    Schlagwort(e): Renovascular hypertension ; Arteritis ; Hyperreninemia ; Hypertension
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Two children aged 18 and 30 months presented with severe renovascular hypertensio. Initially, surgical intervention was postponed because of the patients' young age. Adequate control of the hypertension and reversal of its sequelae were achieved with aggressive medical management. At present, both patients, aged 9 and 12 years respectively, have discontinued all medication, have achieved normal growth, are normotensive and have normal renal function.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00572774
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  • 10
    Digitale Medien
    Digitale Medien
    The incoherent scattering function and related correlation functions in hard sphere fluids at short times (1981)
    Springer
    Journal of statistical physics 25 (1981), S. 321-360 
    Details
    ISSN: 1572-9613
    Schlagwort(e): Incoherent scattering function ; velocity correlation function ; cumulants of displacement ; hard-sphere fluid ; short-time expansions
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract For a classical fluid of hard spheres and hard disks exact expressions for all densities and wave vectors are derived for the coefficients oft n in the short-time expansion of the incoherent intermediate scattering function (n = 0, 1,..., 4) and the velocity correlation function (n=0,1,2). Similarly, we obtain the coefficient of the leading term in the short-time behavior of the cumulants of the displacements. Furthermore,S(k, ω) has a high-frequency tail ∼ω−4, characteristic for the hard-sphere fluid, which leads to a modification of the standard sum rules. We present estimates for the frequency range, in which this tail may be observed in neutron scattering off noble gases. The results are also compared with Enskog's theory and molecular dynamics calculations.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01022190
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