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  • 1
    Electronic Resource
    Electronic Resource
    Immunohistological Study of Endothelin-1 and Endothelin-A and B Receptors in Two Patients with Scleroderma Renal Crisis (1999)
    Springer
    Clinical rheumatology 18 (1999), S. 425-427 
    Details
    ISSN: 1434-9949
    Keywords: Key words:Scleroderma renal crisis and endothelin-1 – Systemic sclerosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract: Scleroderma renal crisis (SRC) developed in two patients with systemic sclerosis (SSc) and they died from respiratory failure. Findings on autopsy revealed congestion and oedema in both lungs and intimal thickening of the small renal arteries in both patients. Immunohistological investigations showed positive staining of anti-human endothelin (ET)-1 in the media of the small renal arteries and ET-B receptor in the medial smooth muscle of the small renal arteries. This observation suggests an important pathophysiological role of ET-1 in the development of SRC in some patients with SSc.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100670050132
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  • 2
    Electronic Resource
    Electronic Resource
    Perpendicular magnetic anisotropy of Co–Ag granular thin films (1999)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 85 (1999), S. 5048-5050 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The perpendicular magnetic anisotropy constant in giant magnetoresistive granular Co22Ag78 thin films is found to increase and then decrease with annealing temperature, the maximum being about 5×105 ergs/cc at an annealing temperature of about 600 K. The observation of domain patterns by magnetic force microscopy is consistent with this result. The origin of the perpendicular magnetic anisotropy is not clear, but suggested to be in an anisotropic Co–Co particle distribution and also due to a surface anisotropy of Co particles. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.370087
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  • 3
    Electronic Resource
    Electronic Resource
    "Contact" solid immersion lens near-field optical recording in magneto-optical TbFeCo media (1999)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 85 (1999), S. 5324-5326 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The solid immersion lens (SIL) near-field magneto-optical (MO) recording technique offers a significant increase in areal density through near-field resolution enhancement. Since the near-field recording scheme requires close proximity of the optical recording head and the magnetic medium, the SIL MO recording setup is usually changed to a "first surface" recording. This requires further optimization of the optical flying head design and a MO medium. In this work marks as small as 150 nm using a SIL with a 680 nm laser source and a TbFeCo magneto-optical medium were recorded. The minimum size of a recorded mark is strongly dependent on the slider flying height, the flying attitude, and lens centering. It should be emphasized that recording power as small as 4 mW is sufficient enough to achieve carrier-to-noise ratio of more than 30 dB. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.370240
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  • 4
    Electronic Resource
    Electronic Resource
    The origin of the large perpendicular magnetic anisotropy in Co3Pt alloy thin films (1999)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 85 (1999), S. 5094-5096 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The origin of the large perpendicular magnetic anisotropy constant Ku obtained in Co3Pt alloy thin films is discussed in connection with a superlattice structure. The Ku and the order parameter S are influenced not only by substrate deposition temperature Ts but also deposition rate γ. For Ts=330 °C, Ku and S increase with lowering γ, whereas for Ts=400 °C, the opposite trend is found. A model, in which the origin of Ku results from two mechanisms: Magnetocrystalline anisotropy in Co3Pt disordered phase and interface-induced magnetic anisotropy in Co3Pt ordered phase, can account for the observed dependence of Ku on S. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.370101
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  • 5
    Electronic Resource
    Electronic Resource
    Bowen's disease developing within a Becker's melanosis (Becker's naevus) (1997)
    Oxford, UK : Blackwell Publishing Ltd
    British journal of dermatology 137 (1997), S. 0 
    Details
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2133.1997.tb03817.x
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  • 6
    Electronic Resource
    Electronic Resource
    Magnetovolume effects of MnAs1−xSbx : The 40th annual conference on magnetism and magnetic materials (1996)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 79 (1996), S. 4647-4649 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Thermal expansion, high-field magnetization, and susceptibility measurements have been made for MnAs0.7Sb0.3. The thermal expansion measurements show that the spontaneous magnetostriction is large and anisotropic below Tc. The spontaneous magnetostriction at 0 K is estimated to be 1.2×10−2 for a axis, −0.8×10−2 for c axis, and 1.6×10−2 for the volume. The spontaneous magnetization decreases sharply in the narrow temperature region below Tc=230 K. All the spontaneous magnetostrictions are found to be proportional to the square of spontaneous magnetization. The magnetization curves measured in a high field up to 40 T show the metamagnetic-like transitions at temperatures above Tc, and they are almost perfectly reproduced by an equation H=A1σ+A2σ3+A3σ5, where H is the applied field and σ is the relative magnetization. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.361692
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  • 7
    Electronic Resource
    Electronic Resource
    Magneto-optical recording on patterned substrates (invited) : The 40th annual conference on magnetism and magnetic materials (1996)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 79 (1996), S. 5687-5692 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Patterning of glass or plastic substrates in the form of shallow square patches is a promising method of increasing the storage density for magneto-optical disks. The sidewalls of the patches pin the reverse-magnetized domains that develop in these samples. Confinement of domains within the patch boundaries during thermomagnetic recording has also been demonstrated. We have measured polarization conversion of the incident light on the sidewalls of the patches; a method to reduce the amount of such polarization conversion is proposed in this article. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.362218
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  • 8
    Electronic Resource
    Electronic Resource
    Spectroscopic Kerr investigations of CoNi/Pt multilayers : The 40th annual conference on magnetism and magnetic materials (1996)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 79 (1996), S. 6190-6192 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: CoxNi1−x/Pt multilayers with x=0.4 and 0.5 were sputtered onto Si substrates. Magnetic and spectroscopic magneto-optic measurements (1.4–5.2 eV) reveal a Kerr rotation up to −0.48° at about 4.5 eV for a sample with rectangular hysteresis loop, about 170 kA/m coercivity, and a Curie temperature of about 300 °C. Pt layers could be made extremely thin (2.9 A(ring)) without loss of perpendicular anisotropy and rectangular hysteresis loop. Simulations show that the Kerr rotation peak shifts back from 4.5 to 3.9 eV with increasing number of bilayers. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.362068
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  • 9
    Electronic Resource
    Electronic Resource
    Enhanced photoluminescence detection of oxygen in silicon crystal by formation of a carbon–oxygen complex through carbon implantation and electron irradiation (1995)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 78 (1995), S. 4407-4410 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: In order to develop a method to detect low-level oxygen in thin silicon crystals by photoluminescence (PL), a radiative carbon–oxygen center (C center: 0.79 eV) is formed in silicon crystals through carbon introduction by ion implantation. The PL intensity of the C center of the implanted sample is significantly increased by annealing the sample at 1000 °C followed by electron irradiation. The possibility of detecting a low concentration of oxygen (below 1×1015 atoms/cm3) in a layer thinner than 1 μm thick is seen. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.359847
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  • 10
    Electronic Resource
    Electronic Resource
    Single electron–photon logic device using coupled quantum dots: Computation with the Fock ground state (1996)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 79 (1996), S. 291-300 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We propose a novel logic device using coupled quantum dots (CQDs) in which single-electron tunneling is influenced by electron–electron interaction. If occupation/unoccupation by a single electron in a quantum dot is viewed as a bit 1/0, we can say that the device can perform (N)AND and (N)OR operations simultaneously. Data input/output is performed by irradiation/absorption of photons. The (N)AND and (N)OR operations are performed by the relaxation of the electronic system to the (Fock) ground state which depends on the number of electrons in CQDs. When the device is constructed of semiconductor nanostructures, phonon emission from an electron is the main contributor to the energy dissipation process. We also present results of a theoretical analysis of the device performance. These results show that (i) the error probability at the final state depends on only the dissipation energy and becomes smaller as the dissipation energy becomes larger, and (ii) the speed of operation depends on the dissipation energy and dissipative interactions and becomes slower as the dissipation energy becomes larger if LA-phonon emission is taken into account. If the size of the dot is 10 nm, the speed of operation and the error probability are estimated to be about 10 ps and about 0.2 at 77 K, respectively. The basic idea of the device is applicable to two-dimensional (2D) pattern processing if the devices are arranged in a 2D array. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.360943
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