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  • 1
    Electronic Resource
    Electronic Resource
    Electronic Density of States for Penrose Tilings and Vicsek Fractal (1994)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 150-151 (Jan. 1994), p. 435-444 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/00/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.150-151.435.pdf
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  • 2
    Electronic Resource
    Electronic Resource
    Lattices and aitch-theta-function identities. I: Theta constants (1992)
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 33 (1992), S. 854-870 
    Details
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: The gluing construction of lattices is used to generate and study a number of theta constant identities. It is shown, for example, that the Jacobi identity, a well-known degree 4 identity, can be derived from a degree 2 identity. A list of all quadratic identities in θ3 derivable from this lattice method, containing over 30 algebraically independent identities, and conjectured to yield all quadratic identities in θ3 derivable by any means, is included. In contrast, only two independent quadratic identities in θ3 have been found elsewhere in the mathematical literature. The theta constants of lattices and their glue classes are investigated, and the fact that the theta constant of each glue class is a root of a polynomial whose coefficients are linear combinations of theta constants of lattices is shown.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.529737
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  • 3
    Electronic Resource
    Electronic Resource
    Lattices and θ-function identities. II: Theta series (1992)
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 33 (1992), S. 871-887 
    Details
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: The gluing construction of lattices is used to generate and study a number of theta function densities. It is shown, for example, that Riemann's formula, a fundamental degree 4 identity, can be derived from a degree 2 identity. It is proved that all in a large class of identities can be derived from these lattice techniques. A list of 24 independent quadratic identities in the Jacobi functions cursive-theta1 and cursive-theta3, conjectured to be complete, with all but two of them seeming to be new, is given. The theta series of glue classes is also investigated, and it is shown that all of them, as well as the functions cursive-thetaa,b, satisfy polynomials whose coefficients are linear combinations of theta series of lattices; these polynomials have some interesting properties.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.529738
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  • 4
    Electronic Resource
    Electronic Resource
    Recombinant Human Interleukin-8 Restores Function in Neutrophils from Patients with Myelodysplastic Syndromes Without Stimulating Myeloid Progenitor Cells (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 37 (1993), S. 0 
    Details
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Prognosis in myelodysplastic syndrome (MDS) is not only correlated closely with blast cell count in bone marrow and chromosomal abnormalities but also correlated with decreased leucocyte count and function leading to acquisition of lethal infections. Recently, clinical trials in MDS have focused on the application of haemopoietic growth factors such as G-CSF or GM-CSF, which have proven to increase neutrophil count and function. However, these cytokines carry the risk of stimulating the malignant clone, particularly in patients with increased blast cell count. Therefore, investigation of cytokines which are able to stimulate neutrophil function without the potential risk of stimulating haemopoietic progenitor cells may be relevant for MDS.As the stimulatory effect of interleukin-8 on neutrophil function is well known, we investigated whether recombinant human IL-8 is also able to improve the function of neutrophils gained from patients with MDS. Using three different techniques—the E. coli killing assay (8 patients), the production of reactive oxygen as determined by cytochrome c reduction (7 patients) and chemiluminescence (8 patients)—a significant stimulation of neutrophil function at a concentration of 10 nM IL-8 was found in all test systems. No correlation with FAB classification was evident. On the other hand, IL-8 only mildly stimulated growth of myeloid progenitor cells in bone marrow culture of healthy individuals and MDS patients. This minimal stimulation was blocked by a neutralizing antibody directed against GM-CSF, suggesting an indirect effect of IL-8 via secondary GM-CSF release.Thus, IL-8 is able in vitro to repair the functional abnormalities of neutrophils from patients with MDS but has only a marginal influence on myeloid progenitor cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3083.1993.tb02560.x
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  • 5
    Electronic Resource
    Electronic Resource
    Prediction of the role of granulocyte-macrophage colony-stimulating factor in animals and man from in vitro results (1994)
    Springer
    European journal of clinical microbiology & infectious diseases 13 (1994), S. S9 
    Details
    ISSN: 1435-4373
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The possibility of predicting the clinical effects of cytokines from in vitro data is discussed, using GM-CSF as an example. GM-CSF incubated with bone marrow cells has been shown to induce proliferation and colony formation, predominantly of the colony-forming unit granulocyte and granulocyte-macrophage types. Daily treatment of normal monkeys with GM-CSF resulted in transient neutropenia followed by neutrophilia. After withdrawal of GM-CSF the neutrophil levels returned to baseline. Predictably, GM-CSF administration results in accelerated neutrophil recovery in patients with chemotherapy-induced neutropenia. GM-CSF has also been shown to induce microbial killing by neutrophils and monocytes in vitro. This activity translated into a dose-related protection of GM-CSF-pretreated mice infected with lethal doses of micro-organisms. Interleukin-3 (IL-3) increases the cellularity of the bone marrow and GM-CSF can induce mobilization of bone marrow cells into the peripheral blood. Therefore, it was predicted and subsequently proved that a combination of these cytokines is synergistic, increasing the yields of peripheral blood progenitor cells which could be collected and then retransplanted into patients undergoing myeloablative chemotherapy. Monkeys injected with recombinant human IL-3 and GM-CSF had increased antibody titres to human IL-3 compared with monkeys given IL-3 alone, suggesting a potential use of GM-CSF which was not predicted from its in vitro results, that of vaccine adjuvancy. Thus, for any new mediator a broad range of tests of its activity in vitro may enable prediction of its activity in vivo, but it is also important to document any unexpected effects in in vivo studies which may give indications of new uses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01973596
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  • 6
    Electronic Resource
    Electronic Resource
    Fast deuteron production from antiproton annihilation at rest on carbon and uranium targets (1994)
    Springer
    The European physical journal 347 (1994), S. 277-279 
    Details
    ISSN: 1434-601X
    Keywords: 13.75.Cs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Deuteron yields from 20–350 MeV kinetic energy in antiproton annihilation at rest in12C and238U targets are compared with a coalescence model calculation. Agreement of the data with the model up to approximately 80 MeV is good. However, from 80 to 350 MeV the model increasingly underestimates the yield, by as much as on order of magnitude. These results, along with previously reported failures to explain proton spectra with first order rescattering of pions, suggest that other mechanisms are manifest in relatively rare, high energy light nucleus emission, e.g.B 〉 0 annihilations or possible six quark interactions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01289795
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  • 7
    Electronic Resource
    Electronic Resource
    Measurements and modeling of linear and nonlinear effects in striplines (1992)
    Springer
    Journal of superconductivity 5 (1992), S. 361-369 
    Details
    ISSN: 1572-9605
    Keywords: Surface impedance ; thin film properties ; stripline resonators ; microwave properties ; YBa2Cu3O7−x
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract We present measurements of surface impedanceZ S as a function of frequency, temperature, and rf magnetic field for high-quality epitaxial YBa2Cu3O7−x thin films using a striplineresonator technique that measures theQ of the resonator vs. input power. The results have been modeled using Ginzburg-Landau theory at moderate fields, and the Bean critical state model at high fields. Good agreement has been obtained between the model and the measurements. We also discuss the current distributions in the stripline for both low power whenZ S is linear and high power whenZ S is nonlinear.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00618136
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  • 8
    Electronic Resource
    Electronic Resource
    T c enhancement in superconductor-semiconductor arrays (1991)
    Springer
    Journal of superconductivity 4 (1991), S. 461-467 
    Details
    ISSN: 1572-9605
    Keywords: High-T c superconductors ; size quantization ; superconductor-semiconductor arrays
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract Subsequent to our observation that the Tl- and Bi-based cuprate high-T c superconductors are built of superconductor-semiconductor arrays (P. C. W. Fung and W. Y. Kwok,J. Superconduct., this issue), we investigate in this paper the possibility ofT c enhancement arising from the effect of change of phonon spectrum and the effect of size quantization when one or more semiconductor blocks is attached to the basic superconductor in the unit cell.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00635865
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  • 9
    Electronic Resource
    Electronic Resource
    Effects of annealing on magnetic properties of Fe78B13Si9 (1990)
    Springer
    Journal of materials science 25 (1990), S. 3159-3161 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract We have annealed amorphous Fe78B13Si9 samples at temperaturesT a = 355 to 460 ° C for timet a = 10 to 60 min, in an atmosphere with purging of nitrogen gas. After thermal treatment, we examined the hysteresis loop, DSC curve, and the X-ray diffractogram of each sample. The coercivityH c, the peak inductionB max, and the lossW h were analysed to study the affects of annealing. Stress-relief and partial crystallization are two important parameters in determining optimal annealing conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00587667
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