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  • 2000-2004  (7)
  • 2002  (7)
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  • 2000-2004  (7)
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  • 1
    Electronic Resource
    Electronic Resource
    Preference Mapping of Commercial Toasted White Corn Tortilla Chips (2002)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 67 (2002), 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: : This study was conducted to identify what constitutes consumer preference for and acceptance of white corn tortilla chips. Consumer overall acceptance of tortill chips was modeled by consumer data for acceptance of appearance, flavor, and texture and by descriptive sensory and/or instrumental data. Internal preference mapping (R2= 0.99) showed that flavor was the most important attribute to consumer overall acceptance followed by texture and appearance. The basic salt attribute and aftertaste attributes of salt, raw masa, and toasted grain aftertastes were important to consumer flavor acceptance, and the attributes of crispness, loose particles, hardness and oily/greasy film were responsible for consumer acceptance of texture. One appearance descriptive attribute (char marks) and 1 instrumental color measurement (a) were significantly related to consumer acceptance of appearance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2002.tb08751.x
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  • 2
    Electronic Resource
    Electronic Resource
    Na,K-ATPase α3 subunit in the goldfish retina during optic nerve regeneration (2002)
    Oxford, UK : Blackwell Science, Ltd
    Journal of neurochemistry 80 (2002), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The goldfish optic nerve can regenerate after injury. To understand the molecular mechanism of optic nerve regrowth, we identified genes whose expression is specifically up-regulated during the early stage of optic nerve regeneration. A cDNA library constructed from goldfish retina 5 days after transection was screened by differential hybridization with cDNA probes derived from axotomized or normal retina. Of six cDNA clones isolated, one clone was identified as the␣Na,K-ATPase catalytic subunit α3 isoform by high- sequence homology. In northern hybridization, the expression level of the mRNA was significantly increased at 2 days and peaked at 5–10 days, and then gradually decreased and returned to control level by 45 days after optic nerve transection. Both in situ hybridization and immunohistochemical staining have revealed the location of this transient retinal change after optic nerve transection. The increased expression was observed only in the ganglion cell layer and optic nerve fiber layer at 5–20 days after optic nerve transection. In an explant culture system, neurite outgrowth from the retina 7 days after optic nerve transection was spontaneously promoted. A low concentration of ouabain (50–100 nm) completely blocked the spontaneous neurite outgrowth from the lesioned retina. Together, these data indicate that up-regulation of the Na,K-ATPase α3 subunit is involved in the regrowth of ganglion cell axons after axotomy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.0022-3042.2002.00771.x
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  • 3
    Electronic Resource
    Electronic Resource
    Effects of super-Gaussian electron velocity distributions on the ion feature of Thomson scattering off two-ion plasmas (2002)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 9 (2002), S. 1073-1078 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The influence of super-Gaussian velocity distributions on the ion feature of Thomson scattering off two-ion plasmas is studied. The analytical solution to the dispersion equation shows that although both the frequencies of the two (fast and slow) ion-acoustic waves increase with the index of the super-Gaussian, the slow wave is more weakly dependent on the index due to the screening of the light ions. In the case that plasma can sustain two lightly damped ion-acoustic waves, the inferred plasma parameters such as electron temperature and plasma temperature ratio may suffer some errors without consideration of super-Gaussian electron velocity distributions. Since the relative intensity between the resonant peaks of the fast and slow waves is sensitive to the super-Gaussian index, the super-Gaussian velocity distributions may be measurable with Thomson scattering off laser-heated two species ion plasmas. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1454121
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  • 4
    Electronic Resource
    Electronic Resource
    Structural stability and electrical properties of Sr2FeMoO6 under high pressure (2002)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 92 (2002), S. 1942-1944 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The structural stability and electrical properties of Sr2FeMoO6 under high pressure at room temperature have been studied using energy dispersive x-ray diffraction with synchrotron radiation and resistance and capacitance measurements. The x-ray diffraction results show that the structure of Sr2FeMoO6 remains stable up to 40 GPa. The equation of state of Sr2FeMoO6 is obtained from the V/V0–P relationship. The bulk modulus B0 and its first-order derivative B0′ of Sr2FeMoO6 were calculated based on the Birch–Murnaghan equation. The electrical resistance undergoes a metallic transition at about 2.1 GPa. The metallic transition may be caused by a change in the electronic structure induced by high pressure. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1496119
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  • 5
    Electronic Resource
    Electronic Resource
    Magnetic and transport behaviors of La0.5(Sr0.53Ca0.47)0.5MnO3 under pressure, magnetic field, and Fe doping (2002)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 91 (2002), S. 3139-3144 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Effects of pressure, magnetic field, and Mn-site doping on the magnetic structure and resistive behavior of La0.5(Sr0.53Ca0.47)0.5Mn1−xFexO3 (0≤x≤0.10) have been experimentally studied. The system experiences two magnetic transitions subsequently with decreasing temperature: a paramagnetic to ferromagnetic transition and a ferromagnetic to antiferromagnetic (AFM) transition. The second magnetic transition coincides with a steep resistivity jump. In addition to reducing the critical temperature for the AFM transition (TN), the incorporation of Fe enhances the ferromagnetic order below TN as demonstrated by the gradual increase of magnetization with the content of Fe. Long-range AFM order is replaced by short-range AFM order when x exceeds 0.03, and disappears completely for x〉0.06. The application of pressure or magnetic field depresses the AFM nature of the compounds, resulting in a downward shift of TN at a rate of ∼7 K/GPa or ∼4 K/T. The most interesting observation of the present study is the greatly enhanced resistivity jump at TN, which increase from 1 to 2 orders, after the sample undergoes a pressurizing and then a pressure relieving process. Although high pressure, magnetic field, and Fe doping produce similar effects on the AFM order, the underlying physics is different. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1446228
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  • 6
    Electronic Resource
    Electronic Resource
    Magnetic properties and shape memory of Fe-doped Ni52Mn24Ga24 single crystals (2002)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 80 (2002), S. 634-636 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Single crystals of a pseudoquaternary Heusler alloy, Ni52Mn16Fe8Ga24, have now been synthesized. The substitution of Fe for Mn strengthens the magnetic exchange interactions, increasing the Curie temperature to 381 K. The Fe also increases the Ni magnetic moment to 0.41 μB relative to that in the stoichiometric Heusler composition. The strain accompanying the martensitic transformation is 2.4% in zero field and can be enhanced to 4.2% by a field of 1.2 T. A field-induced strain of 1.15% has been induced along [001] in unstressed crystals with magnetic fields of 1.2 T applied at 291 K. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1447003
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  • 7
    Electronic Resource
    Electronic Resource
    Effect of electrical boundary conditions on ferroelectric domain structures in thin films (2002)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 81 (2002), S. 427-429 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The domain structures in a ferroelectric thin film are studied using a phase-field model. A cubic-to-tetragonal ferroelectric phase transition in lead titanate thin film is considered. Both elastic interactions and electrostatic interactions are taken into account. The focus is on the effect of electrical boundary conditions on the domain morphologies and volume fractions. It is shown that different electric boundary conditions may have a significant effect on the domain structures. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1492025
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