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  • 1
    Electronic Resource
    Electronic Resource
    Molecular Orbital Calculations and Raman Measurements for 1-Ethyl-3-methylimidazolium Chloroaluminates (1995)
    s.l. : American Chemical Society
    Inorganic chemistry 34 (1995), S. 2990-2993 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic00115a029
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  • 2
    Electronic Resource
    Electronic Resource
    Oxidation characteristics and magnetic properties of iron ultrafine particles (1998)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 83 (1998), S. 3871-3875 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Oxidation of Fe ultrafine particles has been studied in air at temperatures ranging from 300 to 873 K. It is found that γ-Fe2O3 and α-Fe2O3 are formed at different temperatures, which leads to significant changes in the particle features and magnetic properties. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.366619
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  • 3
    Electronic Resource
    Electronic Resource
    Particle features, oxidation behaviors and magnetic properties of ultrafine particles of Ni–Co alloy prepared by hydrogen plasma metal reaction (1999)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 86 (1999), S. 1867-1873 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Ni–Co ultrafine particles (UFPs) were prepared by hydrogen plasma metal reaction. Particle characteristics, oxidation, and magnetic properties were investigated and compared. fcc structured Ni–Co UFPs with a sphere shape were prepared over the whole composition range. The particles distribute from 5 to 100 nm in size with an average particle size of about 35 nm. They are thermally stable in air below 433 K, but oxidize quickly at the higher temperatures. The saturation magnetization of the UFPs is lower than that of the corresponding bulk alloy, especially in the Co rich side. Formation of oxide layer on the particle's surface is an important reason for this reduction. Ni–Co UFPs possess large residual magnetization and coercive force above 60% Co. The composition dependence of the saturation magnetization and the coercive force changes remarkably around 60% Co, which implies a large variation in magnetic status around this composition. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.370981
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  • 4
    Electronic Resource
    Electronic Resource
    Preparation of monolithic barium titanate xerogels by sol–gel processing and the dielectric properties of their sintered bodies (1995)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 66 (1995), S. 1704-1706 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Monolithic xerogels of crystalline barium titanate, with dimensions of ∼3 mm thick and ∼6 mm in diameter, have been produced by sol–gel processing using metal alkoxides. An excess amount of water with the H2O/Ba ratio(approximately-greater-than)100 (for hydrolysis of the barium titanate precursor alkoxides) and aging time(approximately-greater-than)8 days were necessary to produce the monolithic crystalline xerogels without breaking during drying (at 90 °C). The barium titanate xerogels as-dried, with a porosity of about 70%, have been found to consist of crystalline grains in the range of 10–20 nm. Firing the xerogels at 1000 °C in air yielded porous barium titanate ceramics with an average grain size around 50 nm and a decreased porosity around 60%. The dielectric constant (εr)–temperature (T) characteristics of these ceramics have been found to be rather flat below 120 °C with a broad peak around this temperature, and those above 120 °C showed a specific behavior of ferroelectric materials described by a Curie–Weiss equation, εr=C/(T–T0), with C≈2×104 K and T0≈230 K (−43 °C); although these values are quite different from those of ferroelectric barium titanate. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.113899
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  • 5
    Electronic Resource
    Electronic Resource
    Studies on the Structure of α1-Acid Glycoprotein. III. Polymorphism of α1-Acid Glycoprotein and the Partial Resolution and Characterization of Its Variants* (1962)
    s.l. : American Chemical Society
    Biochemistry 1 (1962), S. 959-966 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00912a004
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  • 6
    Electronic Resource
    Electronic Resource
    Phase transformation of SmCo5 due to hydrogenation and nitridation (1997)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 81 (1997), S. 2895-2897 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Structural changes of the intermetallic compound SmCo5 after hydrogenation and nitrogenation were investigated by x-ray diffraction, transmission electron microscopy, and differential scanning calorimetry. Amorphization was not observed by hydrogenation of SmCo5. On the contrary, an amorphous a-SmCo5N1.2 alloy was synthesized by nitrogenation. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.363950
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  • 7
    Electronic Resource
    Electronic Resource
    Polymorphism of Zinc-α 2 -Human Glycoprotein (1964)
    [s.l.] : Nature Publishing Group
    Nature 203 (1964), S. 407-408 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Zinc-?2-glycoprotein was isolated as described earlier4 from large pools of outdated normal plasma collected in the New England area. This glycoprotein appeared homogeneous on ultracentrifugation, electrophoresis, chromatography, and JSTH2-terminal amino-acid analysis. Its extinction coefficient ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/203407a0
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  • 8
    Electronic Resource
    Electronic Resource
    The regulation of fiber arrangement in advanced cellular cementogenesis of human teeth (1998)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of periodontal research 33 (1998), S. 0 
    Details
    ISSN: 1600-0765
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: This study observed cellular cementum in fully formed human premolars by light and electron microscopy to elucidate how cementoblasts regulate the fiber arrangement in cementum. Cementoblasts had wing-like processes encircling the principal fibers, where Sharpey's fibers were dense. On the cementum-facing side, wing-like processes were segmented into finger-like processes in parallel with the cementum surface. Observations suggested that with the segmentation intrinsic fibers appeared around principal fibers in close association with finger-like processes. Where Sharpey's fibers were few or absent, where intrinsic fibers were the main fibrous element of the cementum, cementoblasts had only few or no wing-like processes, but had finger-like processes not associated with the wing-like processes on the cementum-facing side. On the basis of the origin of the finger-like processes the main results suggest that there are two kinds of cementoblasts: one has finger-like processes associated with wing-like processes and secretes intrinsic fibers from the finger-like processes to incorporate the principal fibers for tooth support. The second type has finger-like processes not associated with wing-like processes, this type secretes intrinsic fibers from the finger-like processes to adjust the cementum thickness.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0765.1998.tb02296.x
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  • 9
    Electronic Resource
    Electronic Resource
    The structure and function of the cemento—dentinal junction in human teeth (1999)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of periodontal research 34 (1999), S. 0 
    Details
    ISSN: 1600-0765
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The structure and function of the cemento-dentinal junction were studied in human molars by light and electron microscopy. The cemento-dentinal junction was an approximately l-3-μm-thick layer full of proteoglycans with mucopolysaccharides but containing fewer collagen fibrils than the root dentin and cementum. In places, cemental fibrils crossed the cemento-dentinal junction. These fibrils appeared to intermingle with dentinal fibrils. By enzymatic treatment of decalcified specimen with hyaluronidase and trypsin, the cemento-dentinal junction decreased or lost staining affinity to toluidine blue. Prolonged treatment caused the separation of cementum from the root dentin during routine histological processes. These data suggest that the adhesion of proteoglycans is more important than the intermingling of dentinal and cemental fibrils for the cemento-dentinal attachment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0765.1999.tb02252.x
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  • 10
    Electronic Resource
    Electronic Resource
    Effects of citalopram, a synthetic serotonin uptake inhibitor, on indoleamine and catecholamine concentrations in the cerebrospinal fluid of freely moving rats (1995)
    Springer
    Journal of neural transmission 9 (1995), S. 111-119 
    Details
    ISSN: 1435-1463
    Keywords: Citalopram ; serotonin ; cerebrospinal fluid ; rat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We studied changes in the concentrations of 5-hydroxytryptamine (5-HT), other indoleamines, and catecholamines in the cerebrospinal fluid (CSF) of freely-moving rats that had been administered citalopram, ±1-[3-(Dimethylamino)propyl)-1-(4-fluorophenyl)-1, 3-dihydro-5-isobenzofurancarbonitrile hydrobromide), a selective inhibitor of 5-HT uptake. In a microdialysis experiment, the intracerebral extracellular free 5-HT increased significantly, peaking 60 to 90 min after citalopram (30 mg/kg p.o.) was administerd. The 5-HT concentrations in CSF from the cisterna magna increased significantly, reaching a maximum 6 hours after a single dose of citalopram (30 mg/kg p.o.) was given. Six hours after this dose, the CSF 5-HT concentration in the cisterna magna was significantly increased, and the 5-hydroxyindoleacetic acid (5-HIAA) concentration was significantly decreased. There were non-significant changes in the other indoleamines (tryptophan, 5-hydroxytryptophan, and kynurenine) and in the catecholamines (dopamine, homovanillic acid, normetanephrine, and 3-methoxy-4-hydroxyphenethyleneglycol). The 5-HT/tryptophan ratio was correlated significantly with the kynurenine/tryptophan ratio before treatment with citalopram (r=0.81, p=0.051), indicative that there is coordination of the serotonin and kynurenine pathways in normal rats. In the animals posttreatment there was no such correlation, suggesting that the changes in 5-HT are independent of the kynurenine system at least within the 6 hours postreatment. These CSF results appear to reflect selective inhibition of 5-HT uptake in brain tissues by citalopram that is not associated with changes in catecholamines.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02259653
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