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  • 1
    Keywords: Marketing research. ; Marketing research, Case studies.
    ISBN: 0-585-48467-8
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  • 2
    Unknown
    Boston : Artech House
    Artech House telecommunications library  
    Keywords: Component software. ; Computer networks. ; Systems engineering.
    Pages: xix, 380 p.
    ISBN: 1-580-53189-X
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  • 3
    Unknown
    Washington, D.C : Brookings Institution Press
    Keywords: Israel, Civilization. ; Israel, Ethnic relations. ; Israel, Social conditions. ; Arab-Israeli conflict. ; Insrael, Civilización. ; Integración social, Israel. ; Israel, Condiciones sociales. ; Israel, Relaciones étnicas. ; Jews, Israel, Identity. ; Multiculturalism, Israel. ; National characteristics, Israeli. ; Palestinian Arabs, Israel, Ethnic identity. ; Pluralism (Social sciences) ; Social integration, Israel.
    Notes: Sticking together : the challenge and the opportunity -- Israel's four schisms -- Demographic complications -- Bridging the divides -- Meeting Israel's future challenges -- Lessons for other countries
    Pages: ix, 155 p.
    ISBN: 0-8157-9814-8
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  • 4
    Book
    Book
    Washington, D. C. :The Mathematical Association of America,
    Title: Cryptological mathematics
    Author: Lewand, Robert E.
    Publisher: Washington, D. C. :The Mathematical Association of America,
    Year of publication: 2000
    Pages: xiv, 199 S.
    Type of Medium: Book
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  • 5
    ISSN: 1432-1211
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-0789
    Keywords: Key words Polyacrylamide ; Soil amidase ; Carbaryl ; Diphenamid ; Naphthalene acetamide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract  Polyacrylamide (PAM) is currently used as an irrigation water additive to significantly reduce the amount of soil erosion that occurs during furrow irrigation of crops. Elevated soil amidase activity specific toward the large PAM polymer has been reported in PAM-treated field soils; the substrate specificity of the induced amidase is uncertain. PAM-treated and untreated soils were assayed for their capacity to hydrolyze the amide bond in carbaryl (Sevin), diphenamid (Dymid), and naphthalene acetamide. Based on results obtained with a soil amidase assay, there was no difference between PAM-treated and untreated soils with respect to the rate of amide bond hydrolysis of any of the agrochemicals tested. It appears that under these assay conditions the PAM-induced soil amidase is not active toward the amide bonds within these molecules. However, carbaryl was hydrolyzed by a different soil amidase. To our knowledge, this is the first soil enzyme assay-based demonstration of the hydrolysis of carbaryl by a soil amidase.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 0948-5023
    Keywords: Keywords Agonist binding, Selectivity, Cation channel
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Structural models have been produced for the agonist binding and transmembrane domains of two NMDA ionotropic glutamate receptors: homomeric NMDA-R2C and heteromeric NMDA-R1/R2C. These models—produced using homology modelling techniques in conjunction with distance restraints derived from the accessibility of substituted cysteines—have aided our understanding of (1) ligand selectivity and (2) channel activity. The model of the agonist binding domain of NMDA-R2C indicates that T691 forms an essential hydrogen bond with glutamate ligand. This interaction is absent in the NMDA-R1 model—where a valine replaces the threonine—explaining why NMDA-R1 binds glycine rather than glutamate. For the transmembrane region, the models suggest that a number of positive residues, located in the cytoplasmic loop between the M1 and M2 segments, create a large electrostatic energy barrier that could explain why homomeric NMDA-R2C channels are non-functional. Introducing NMDA-R1 to form heteromeric NMDA-R1/R2C channels is predicted to rescue channel activity because the corresponding region in NMDA-R1 contains negative residues that more than compensate for the electrostatic energy barrier in NMDA-R2C. These studies suggest that replacing the positively charged region in the M1-M2 loop of NMDA-R2C with the corresponding negatively charged region of NMDA-R1 could transform NMDA-R2C into a functional homomeric channel.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Southeast Asian bulletin of mathematics 24 (2000), S. 1-7 
    ISSN: 0219-175X
    Keywords: presentations ; monoids ; transformations ; orientation-preserving ; order-preserving
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract The purpose of this paper is to give presentations for the monoids of orientation-preserving mappings on a finite chain of order n, and orientation-preserving or reversing mappings on such a chain. Both these monoids are natural extensions of the monoid of order-preserving mappings. The obtained presentations are on two and three generators, respectively, and have n + 2 and n + 6 relations, respectively.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Machine learning 39 (2000), S. 135-168 
    ISSN: 0885-6125
    Keywords: text and speech categorization ; multiclass classification problems ; boosting algorithms
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract This work focuses on algorithms which learn from examples to perform multiclass text and speech categorization tasks. Our approach is based on a new and improved family of boosting algorithms. We describe in detail an implementation, called BoosTexter, of the new boosting algorithms for text categorization tasks. We present results comparing the performance of BoosTexter and a number of other text-categorization algorithms on a variety of tasks. We conclude by describing the application of our system to automatic call-type identification from unconstrained spoken customer responses.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 113 (2000), S. 8898-8907 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The quantum trajectory method was recently developed to solve the hydrodynamic equations of motion in the Lagrangian, moving-with-the-fluid, picture. In this approach, trajectories are integrated for fluid elements ("particles") moving under the influence of the combined force from the potential surface and the quantum potential. To accurately compute the quantum potential and the quantum force, it is necessary to obtain the derivatives of a function given only the values on the unstructured mesh defined by the particle locations. However, in some regions of space–time, the particle mesh shows compression and inflation associated with regions of large and small density, respectively. Inflation is especially severe near nodes in the wave function. In order to circumvent problems associated with highly nonuniform grids defined by the particle locations, adaptation of moving grids is introduced in this study. By changing the representation of the wave function in these local regions (which can be identified by diagnostic tools), propagation is possible to much longer times. These grid adaptation techniques are applied to the reflected portion of a wave packet scattering from an Eckart potential. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
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