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  • 1
    Electronic Resource
    Electronic Resource
    Identification of bacterial pathogens by laser excited fluorescence (1985)
    s.l. : American Chemical Society
    Analytical chemistry 57 (1985), S. 1669-1673 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac00285a035
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  • 2
    Electronic Resource
    Electronic Resource
    Interaction between a peat carrier and bacterial seed treatments evaluated for biological control of the take-all diseases of wheat (Triticum aestivum L.) (1989)
    Springer
    Biology and fertility of soils 8 (1989), S. 166-171 
    Details
    ISSN: 1432-0789
    Keywords: Pseudomonas ; Disease predisposition ; Take-all ; Gaeumannomyces ; Seed treatment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Field plots were established in Indiana, Oregon, and Montana to evaluate the potential for biological control of various strains of bacteria as seed treatments to reduce the severity of take-all root, crown, and foot rot of wheat. The bacteria were grown in liquid broth Cas-amino acid broth media, mixed with finely ground peat, and applied to seed with methyl cellulose as a glue just before planting in field soils conducive for severe take-all. Autoclave-sterilized peat (minus bacteria) seed treatments increased take-all, immobilized Mn, and reduced plant vigor and grain yields. These effects were intensified when the pH of the natural peat was adjusted from 5.2 to 7.0 with CaCO3. The ability of the bacterial strains to counteract this peat-induced predisposition to take-all varied, and was influenced by planting site, genetic tolerance of the cultivar, and N treatment. Although the strains differed in their ability to suppress the peat-induced take-all, none of the isolates fully nullified the deleterious effects of the peat carrier. It is clear from this study that the carrier used with potential biological-contol agents may have a greater influence on disease than the biological agent.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00257761
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  • 3
    Electronic Resource
    Electronic Resource
    Strawberry Fruit Softening: The Potential Roles of Polyuronides and Hemicelluloses (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 49 (1984), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Polyuronides and hemicelluloses derived from ethanol powders or cell walls of strawberry (Fragaria × ananassa, Duch. Dover) receptacle tissue were examined to determine if these wall polymers might be involved in the softening of this fruit. Throughout maturation and ripening, total polyuronides increased on a per fruit basis although as a percentage of ethanol powder they remained constant. Gel-filtration chromatography confirmed that polyuronide solubility was not correlated with extensive enzymic hydrolysis, an observation consistent with the fact that D-galacturonanase (polygalacturonase) activity was not detected in strawberry fruit. The sugar composition of alkali-soluble wall polymers showed little change throughout development. However, changes occurred in the molecular weights of these polymers during ripening.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1984.tb14976.x
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  • 4
    Electronic Resource
    Electronic Resource
    Thermodynamics of III-V solutions with n components
    Amsterdam : Elsevier
    Journal of Physics and Chemistry of Solids 34 (1973), S. 1859-1865 
    Details
    ISSN: 0022-3697
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/S0022-3697(73)80106-4
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  • 5
    Electronic Resource
    Electronic Resource
    Equation of state for classical hard-particlelike fluids (1995)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 103 (1995), S. 5027-5030 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: We extend earlier studies of the equation of state of classical hard-particle fluids to potentials where there is an attractive tail in addition to a repulsive hard core. Like the earlier work, the approach is based on the arbitrary point, nearest-neighbor probability density function. In the high temperature (hard-particle) limit, a parametrization of the integrated distribution is introduced. By matching the parameters against the coefficients in a seven-term virial expansion, we obtain an equation of state that is in excellent agreement with the results from Monte Carlo, molecular dynamics calculations in both two and three dimensions. The theory is extended to finite temperatures by treating deviations from the hard-particle limit as small corrections that can be evaluated using hard-particle distribution functions. A comparison is made with the results from a five-term finite temperature virial expansion for a three-dimensional hard-particle system with a square well attractive potential. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.470589
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  • 6
    Electronic Resource
    Electronic Resource
    Microscopic theory of magnetic excitations in ferromagnets with random anisotropy axes (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 64 (1988), S. 5627-5629 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We present a microscopic theory of the harmonic magnetic excitations in ferromagnets with random anisotropy axes. The theory is analogous to the theory of excitations in spin glasses developed by Walker and Walstedt, with the difference that the disorder arises from the anisotropy rather than the exchange interaction. We report the results of numerical calculations of magnon density of states and the ferromagnetic resonance frequency for a model system where the spins occupy sites on a fcc lattice. The exchange interaction is between nearest neighbors, and the anisotropy axis varies randomly from site to site with no correlation between different sites. Data are obtained with a range of values of the ratio of the anisotropy to the exchange interaction in both the zero-field and high-field limits.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.342303
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  • 7
    Electronic Resource
    Electronic Resource
    Nitrogen Form and Plant Disease (1974)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Phytopathology 12 (1974), S. 139-165 
    Details
    ISSN: 0066-4286
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.py.12.090174.001035
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  • 8
    Electronic Resource
    Electronic Resource
    Modification of matrix polysaccharides during avocado (Persea americana) fruit ripening: an assessment of the role of Cx-cellulase (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 86 (1992), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The role of Cx-cellulase (EC 3.2.1.4) in fruit ripening and softening is unknown. In the present study, avocado (Persea americana) fruit, a rich source of Cx-cellulase, were examined to determine if the enzyme plays a role in ripening-related hemicellulose metabolism. Hemicelluloses (4 M alkali-soluble) from avocado fruit exhibited a very broad distribution of polymer sizes and an overall decrease in Mr during ripening. Polymers affected were primarily those of large Mr (relative molecular mass). The characteristic total hemicellulose Mr distribution and changes with ripening were also evident for xyloglucan (XG), a putative substrate for avocado Cx-cellulase. Hydrolytic activity toward hemicelluloses from preripe fruit was detected in crude buffer-soluble protein extracts derived from ripe avocado mesocarp tissue. XG was also degraded, and in a pattern similar to that observed during ripening. Purified Cx-cellulase also exhibited activity against specific components of isolated hemicelluloses; however, in contrast to the crude protein. Cx-cellulase alone was without influence on the Mr distribution of avocado XG. Protein depleted of Cx-cellulase was capable of moderate XG depolymerization. We conclude from the present studies that the enzyme Cx-cellulase is not involved in the ripening-related depolymerization of XG in avocado fruit.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1992.tb01308.x
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  • 9
    Electronic Resource
    Electronic Resource
    Cell wall changes during the expansion and senescence of carnation (Dianthus caryophyllus) petals (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 78 (1990), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Senescence of carnation (Dianthus caryophyllus L. ev. White Sim) petals coincided with a decrease on a per flower basis in the yield of cell wall and ethanol-insoluble solids. The decrease in cell wall yield per flower was due largely to a loss of neutral sugars, primarily galactose (45%) and arabinose (23%). On a per flower basis, water-and chelator-soluble pectins increased throughout development, comprising in senescent petals 18 and 58%, respectively, of total pectin. Alkali-soluble pectins ranged from 35 to 45% of the total pectin and decreased during senescence. Gel chromatography of chelator- and alkali-soluble pectins revealed no change in molecular size and polygalacturonase activity was not detected. Large-molecular-size hemicelluloses decreased during development, an observation reminiscent of the changes affecting hemicelluloses during the ripening of a number of fruit types. Compositional analysis of the large hemicellulosic polymers revealed a decrease in xylose and galactose content.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1990.tb09062.x
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  • 10
    Electronic Resource
    Electronic Resource
    Synthesis and ocular antihypertensive activity of new imidazolidine derivatives containing a .beta.-blocking side chain (1991)
    s.l. : American Chemical Society
    Journal of medicinal chemistry 34 (1991), S. 3197-3204 
    Details
    ISSN: 1520-4804
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jm00115a008
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