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  • 2000-2004  (6)
  • 1985-1989  (6)
  • 1970-1974  (6)
  • 1965-1969  (7)
  • 1900-1904  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Influence of ion energy and arrival rate on x-ray crystallographic properties of thin ZrOx films prepared on Si(111) substrate by ion-beam assisted deposition (2000)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 88 (2000), S. 3773-3775 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Thin zirconium oxide films, formed on Si(111) substrate by ion-beam assisted deposition, have been investigated by x-ray diffractometry with respect to the microstructure of the films, such as preferred orientation, interplanar spacing, crystallite size. The results of the interplanar spacing and diffraction intensity analysis could be interpreted in terms of relative amount of Zr4+ ions estimated by analyses of Zr 3d x-ray photoelectron spectroscopy spectra for the films. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1286108
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    α-(γ-AMINOBUTYRYL)-LYSINE IN MAMMALIAN BRAIN: ITS IDENTIFICATION AND DISTRIBUTION (1969)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 16 (1969), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract— α-(γ-Aminobutyryi)-lysine was identified in rabbit brain. This compound was detected exclusively in the brain of mammals, but not in other tissues. It is not concentrated in any particular region of the rabbit brain.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1969.tb10382.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Density profile of the ablating plasma produced by soft x-ray irradiation : Papers from the thirteenth topical conference on high temperature plasma diagnostics (2001)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 72 (2001), S. 653-656 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Indirect/direct-hybrid irradiation has been proposed for suppressing the initial imprint of laser-irradiation nonuniformities. Indirect soft x-ray preirradiation of the target generates a plasma expansion layer on the target surface. When the drive laser beam comes later, the target has a substantial stand-off distance between the ablation front and the beam absorption region, in which the thermal smoothing effect is expected to take place, and then, the initial imprint of the laser irradiation nonuniformities can be significantly reduced. Stand-off distance is of great importance in the imprint mitigation. We measured the preformed plasma profile by using the x-ray side-on backlighting method. The preformed plasma was backlit by x rays and imaged onto an x-ray streak camera. The scale length of the preformed plasma was found to increase with duration of the soft x-ray irradiation. The expansion velocity was found to be 6×105 cm/s at an x-ray irradiation of 1×1011 W/cm2. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1315644
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Disulfide Reactive with Sulfite in Native Serum Albumin* (1965)
    s.l. : American Chemical Society
    Biochemistry 4 (1965), S. 2389-2394 
    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/bi00887a019
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  • 5
    Electronic Resource
    Electronic Resource
    Dependence of magnetic properties of Co-Pt films on sputtering conditions (1985)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 57 (1985), S. 4022-4024 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Magnetic properties, Young's modulus, and corrosion resistance of Co-Pt films deposited by targets-facing type of sputtering (TFTS) have been investigated. The films deposited at a Ar gas pressure PAr of 2 mTorr present good surface smoothness and dense texture. The c axis of the hexagonal crystallites in the film orients normal to the film plane. The films have nearly the same value of Young's modulus (≈17×1011 dyn/cm2) as that of the bulk Co-Pt alloy. On the other hand, the films deposited at PAr of 30 mTorr exhibit rough surface and columnar structure and do not exhibit any preferred orientation of crystallites. In addition, they have a small value of Young's modulus (≈5×1011 dyn/cm2) and poor corrosion resistance compared with the film deposited at low PAr. They have coercive force Hc larger than 1 kOe, which is mainly caused by their porous structure. Besides, the Co-Pt films have large in-plane uniaxial magnetic anisotropy, which is caused by both dc magnetic field applied to substrate during deposition and oblique incidence of sputtered particles upon substrate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.334658
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  • 6
    Electronic Resource
    Electronic Resource
    Effect of additional element (Fe, Zr, Ta) for Co-Cr films deposited by targets facing type of sputtering (1985)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 57 (1985), S. 4019-4021 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: In order to improve both magnetic properties and wear resistance of Co-Cr films for perpendicular magnetic recording media, the effect of the addition of a small amount of Fe, Zr, and Ta to the Co-Cr binary alloy films has been investigated. They were deposited with a targets facing type sputtering (TFTS) apparatus. (i) The addition of a small amount of Fe (〈5 at. %) causes a significant decrease of the effective perpendicular magnetic anisotropy K⊥ (K⊥=Ku−2πM2s). The K⊥ has a negative value at Fe content above 1 at. %. Consequently, the recording characteristics become worse as Fe content increases. (ii) The addition of Zr leads to a remarkable decrease of grain size and improvement of surface smoothness along with an increase of wear resistance. It also causes evident decrease in Ku and saturation magnetization Ms. However, both K⊥ and remanence ratio Mr⊥/Mr(parallel) are increased by the addition of a small amount of Zr up to 0.5 at. %, though they decrease steeply with further increase of Zr content above 1 at. %. (iii) The addition of Ta shows almost the same tendency as Zr for the film structure and wear resistance. It also causes the decrease of Ku. But the K⊥ increases with an increase of Ta content up to 0.5 at. % and takes nearly constant value at Ta content above 0.5 at. %, since the Ms of the film decreases remarkably as Ta content increases. Mr⊥/Mr(parallel) increases gradually from 2.5 to 3.6 as Ta content increases. Consequently, the addition of a small amount of Ta is effective for improving both recording characteristics and wear resistance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.334657
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  • 7
    Electronic Resource
    Electronic Resource
    Ba–ferrite thin-film disk for perpendicular magnetic recording (1985)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 57 (1985), S. 4040-4042 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The authors have prepared Ba–ferrite film disks and evaluated their magnetic read/write characteristics. The c-axis-oriented Ba–ferrite thin films were formed epitaxially on c-axis-oriented ZnO films by means of a targets-facing-type sputtering system. The direction of easy magnetization in the film with perpendicular crystalline anisotropy is almost perpendicular to the film plane. Thus, the perpendicular remanence is more than 60 times as large as the in-plane one. The simple Ba–ferrite films, however, have a coercive force, Hc⊥ above 2 kOe which is too large to write on by means of a conventional head. The substitution of In3+ in the Ba–ferrite films makes the Hc⊥ values decrease to about 1 kOe without increasing the critical temperature, Tcritical, of c-axis orientation. The read/write characteristics of the films were measured with a MnZn–ferrite ring head. The reproduced signal exhibits clear dipulsive waveforms as the dipulse ratio exceeds 0.7. Furthermore, the overwrite ratio decreases below −28 dB for the In3+-substituted Ba-ferrite film disk. The Ba–ferrite film disks have promising potential as a high-density perpendicular magnetic recording medium.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.334664
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Upregulation of T-Cell-Stimulating Activity of Mycobacteria-Infected Macrophages (2004)
    Oxford, UK; Malden, USA : Blackwell Science Ltd
    Scandinavian journal of immunology 60 (2004), S. 0 
    Details
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Macrophages are one of the most abundant host cells to come in contact with mycobacteria. However, the infected macrophages less efficiently stimulate autologous T cells in vitro. We investigated the effect of the induction of phenotypic change of macrophages on the host cell activities by using Mycobacterium leprae as a pathogen. The treatment of macrophages with interferon-γ (IFN-γ), GM-CSF and interleukin-4 deprived macrophages of CD14 antigen expression but instead provided them with CD1a, CD83 and enhanced CD86 antigen expression. These phenotypic features resembled those of monocyte-derived dendritic cells (DC). These macrophage-derived DC-like cells (MACDC) stimulated autologous CD4+ and CD8+ T cells when infected with M. leprae. Further enhancement of the antigen-presenting function and CD1a expression of macrophages was observed when treated with IFN-γ. The M. leprae-infected and -treated macrophages expressed bacterial cell membrane-derived antigens on the surface and were efficiently cytolysed by the cell membrane antigen-specific CD8+ cytotoxic T lymphocytes (CTL). These results suggest that the induction of phenotypic changes in macrophages can lead to the upregulation of host defence activity against M. leprae.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.0300-9475.2004.01472.x
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  • 9
    Electronic Resource
    Electronic Resource
    Observation of a New X-ray Source (1969)
    [s.l.] : Nature Publishing Group
    Nature 224 (1969), S. 784-785 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Our instrument was composed of two proportional counters (A and B) filled with Xe-methane gas at 330 mm Hg. The depth of the counter was 5 cm and the effective area of each 110?m Be window was 40 cm2. Each counter had cellular collimators and was shielded by veto-counters to reduce spurious counts. ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/224784a0
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  • 10
    Electronic Resource
    Electronic Resource
    Further simultaneous hard X-ray and optical observations of Sco X-1 (1974)
    [s.l.] : Nature Publishing Group
    Nature 250 (1974), S. 38-40 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In our 1971 observations we found a positive correlation between the optical luminosity and the intensity of hard X rays at the optically enhanced phase of Sco X-l (refs 2 and 3). Although the optical enhancement seemed to be a flare, a rather poor time resolution of the photographic observation ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/250038a0
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