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  • 1
    Electronic Resource
    Electronic Resource
    Photodissociation of acetone at 193 nm: Rotational- and vibrational-state distributions of methyl fragments by diode laser absorption/gain spectroscopy (1991)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 94 (1991), S. 4182-4188 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Diode laser transient absorption/gain spectroscopy is used to monitor time-dependent populations of CD3 fragments formed in the photodissociation of acetone-d6 at 193 nm. Selected rotational lines have been measured in the ν2 "umbrella'' fundamental and first two hot bands, and in the ν3 asymmetric stretching fundamental band. Substantial growth is observed in the vibrationless state on the time scale of vibrational relaxation. We estimate that only about 15% of the nascent CD3 population is formed in the vibrational states we detect: ν2=1 and 2, ν3=1, and the vibrationless state. Most of the nascent methyl population is evidently spread among many undetected vibrational states. These results complement previous measurements of acetone photofragments by infrared emission, multiphoton ionization, and laser-induced fluorescence. Our inferred global vibrational distribution is consistent with a two-step fragmentation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.460741
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    APPLICATION OF IMMUNOENZYME METHODS IN DIAGNOSIS OF HUMAN PARASITIC DISEASES (1975)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 254 (1975), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1975.tb29183.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Immunochemical characterization of antibody-coated nanoparticles (1996)
    Springer
    Cellular and molecular life sciences 52 (1996), S. 803-806 
    Details
    ISSN: 1420-9071
    Keywords: Immunonanoparticle ; methylidene malonate ; surface plasmon resonance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A new method using surface plasmon resonance (SPR) through the BIAcore was used to demonstrate the specific interaction between an anti-CD4 monoclonal antibody (IOT4a), adsorbed on poly(methylidene malonate 2.1.2) (PMM 2.1.2) nanoparticles, and the CD4 molecule. The results obtained were compared with the interaction of the same immunonanoparticles with rabbit anti-mouse Fc antibodies. The molar ratio (Fc)/(Fab) was 1, suggesting that the same number of epitopes on the Fc and the Fab fragments were accessible after IOT4a adsorption onto nanoparticles. Comparing the observed association rates of free antibody and antibody adsorbed on nanoparticles, the number of molecules of IOT4a antibody on PMM 2.1.2 nanoparticles was estimated as between 2.6 and 3 per nanoparticle. The properties of the antibody-coated nanoparticles are compatible with their use as antibody-targeted pharmacophores.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01923993
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  • 4
    Electronic Resource
    Electronic Resource
    Epitopic analysis of the Toxoplasma gondii major surface antigen SAG1
    Amsterdam : Elsevier
    Molecular & Biochemical Parasitology 66 (1994), S. 31-38 
    Details
    ISSN: 0166-6851
    Keywords: B epitope ; Surface antigen 1 ; T epitope ; Toxoplasma gondii ; [abr] SAG1; surface antigen 1 (P30)
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0166-6851(94)90033-7
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  • 5
    Electronic Resource
    Electronic Resource
    Improving the performance of the Hopfield-Tank neural network through normalization and annealing (1989)
    Springer
    Biological cybernetics 62 (1989), S. 129-139 
    Details
    ISSN: 1432-0770
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Computer Science , Physics
    Notes: Abstract A simple formulation of the TSP energy function is described which, in combination with a normalized Hopfield-Tank neural network, eliminates the difficulty in finding valid tours. This technique is applicable to many other optimization problems involving n-way decisions (such as VLSI layout and resource allocation) and is easily implemented in a VLSI neural network. The solution quality is shown to be dependent on the formation of seed-points which are influenced by the constraint penalties and the temperature (i.e. the neural gain). Near-optimal tours are found by annealing the network down to a critical temperature at which a single seed-point is dominant. The seed-points and critical temperature (which also affect standard Hopfield network solutions to the TSP) can be predicted with reasonable accuracy. It is also shown that the annealing process is not necessary and good tours result if the network is allowed to converge solely at the critical temperature. The seed-points can be eliminated entirely by assigning different temperatures to groups of neurons such that the tour evolves uniformly throughout the cities. The resulting network finds the optimum tour in a 30-city example in 30% of the trials.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00203001
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  • 6
    Electronic Resource
    Electronic Resource
    Scalable VLSI implementations for neural networks (1990)
    Springer
    The journal of VLSI signal processing systems for signal, image, and video technology 1 (1990), S. 367-385 
    Details
    ISSN: 1573-109X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: Abstract This paper discusses research on scalable VLSI implementations of feed-forward and recurrent neural networks. These two families of networks are useful in a wide variety of important applications—classification tasks for feed-forward nets and optimization problems for recurrent nets—but their differences affect the way they should be built. We find that analog computation with digitally programmable weights works best for feed-forward networks, while stochastic processing takes advantage of the integrative nature of recurrent networks. We have shown early prototypes of these networks which compute at rates of 1–2 billion connections per second. These general-purpose neural building blocks can be coupled with an overall data transmission framework that is electronically reconfigured in a local manner to produce arbitrarily large, fault-tolerant networks.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00929928
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    Paper (German National Licenses)
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