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  • 1
    Electronic Resource
    Electronic Resource
    Ischemic Modification of Cerebrocortical Membranes: 5-Hydroxytryptamine Receptors, Fluidity, and Inducible In Vitro Lipid Peroxidation (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 53 (1989), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: The effect of ischemia on the properties of 5-hydroxytryptamine1A+B (5-HT1A+B) and 5-hydroxytrypt-amine1B5-HT1B) binding sites, physical-state “fluidity” of the membrane, and its susceptibility to peroxidation in vitro was investigated in the cerebral cortex of gerbils. Ischemia was induced by bilateral carotid artery occlusion for 15 min alone or with release for 1 h. Ischemia both with and without reflow decreased the number of 5-HT1A+B and 5-HT1B binding sites, whereas ischemia and reflow altered the affinity for 5-HT1B binding sites. Resistance to the temperature-dependent increase in “fluidity” of the membrane was detected (by fluorescence anisotropy using l,6-diphenyl-l,3,5-hexatriene as a probe) after ischemia and reflow but not in ischemia alone. Susceptibility of the membranes to Fe2+- and ascorbic acid-stimulated lipid peroxidation in vitro was decreased following ischemia and recirculation only. These findings strongly suggest that the composition and the function of the membrane are markedly disturbed during recirculation after ischemia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1989.tb07375.x
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  • 2
    Electronic Resource
    Electronic Resource
    Miniaturization limit of a cloth inductor (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 63 (1988), S. 3394-3396 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A cloth-structured magnetic device was designed, and the optimized relation between amorphous fiber and conductive fiber size was shown. The inductance, equivalent resistance, and quality factor of cloth-structured magnetic devices were calculated. Furthermore, the stray capacitance of the device was estimated from the analysis of an equivalent circuit. A cloth inductor of only 0.7 mm thickness could be made, which could have an inductance of 100 μH, a rating current of 100 mA, and a quality factor over 60. Regarding the further miniaturization of the device, the magnetic flux distribution established inside the cloth inductor was measured. The miniaturization limit was estimated, which was influenced by the magnetic permeability and the aspect ratio of the fibers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.340794
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  • 3
    Electronic Resource
    Electronic Resource
    Magnetic properties and structure of Fe/Al multilayered films prepared by ion-beam sputtering (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 64 (1988), S. 5751-5753 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Fe/Al multilayered films with the thicknesses of the Fe and Al layers (δFe and δAl) below 300 A(ring) have been prepared by means of an ion-beam sputtering method, and the dependence of their crystal structure and magnetic properties on δFe and δAl has been investigated. The saturation magnetization 4πMs and the coercivity Hc of the multilayered films decreased monotonically and the d(110) spacing of α-Fe crystallites in the Fe layers increased as δFe decreased in the range below 100 A(ring) for δAl of 20 A(ring). Such an increase in d spacing was removed substantially by annealing at 300 °C in vacuum. The x-ray diffractometry of the multilayered films with δFe of 100 A(ring) and δAl below 15 A(ring) indicated only the (200) orientation of α-Fe crystallites. In the range of δAl from 20 to 15 A(ring) the preferentially oriented plane of Fe crystallites changed from (110) to (200) and Hc took a minimum value lower than 4 Oe. These results might be attributed to the alternate epitaxial growth at the interfaces between the Fe and Al layers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.342247
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  • 4
    Electronic Resource
    Electronic Resource
    Implantable transformer for an artificial heart utilizing amorphous magnetic fibers (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 64 (1988), S. 5859-5861 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: It is a very serious problem for an implantable artificial heart to receive energy from outside the body. A new implantable transformer with a plain weave structure was proposed by using amorphous magnetic fibers. The transformer has the following features: (i) a thin, planar shape; (ii) high flexibility; and (iii) low waste heat in the range of several tens kHz. Appropriate conditions for the size of the transformer were shown experimentally. The transformer (70×30×1 mm3) of a trial design can supply a power of 6 W. The temperature rise of the transformer based on iron loss is considered to be negligibly small.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.342180
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  • 5
    Electronic Resource
    Electronic Resource
    Distance sensor using a cloth inductor (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 64 (1988), S. 5690-5692 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A new distance sensor is presented using a cloth inductor combined with a magnet. The sensor, reported in this paper, makes use of the characteristics of the cloth inductor. A distance sensor using a cloth inductor has superior characteristics due to the cloth inductor. The cloth inductor has two great characteristics: a plain shape and a closed magnetic path. The sensor also has a very plain shape (thickness〈0.6 mm), a high signal-to-noise ratio, and is independent of the nearby magnetic substance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.342276
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  • 6
    Electronic Resource
    Electronic Resource
    Effects of annealing and periodic ion bombardment on the soft magnetism of FexN films by a double ion beam sputtering system (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 64 (1988), S. 5449-5451 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Fe films with low nitrogen content have been prepared by using a dual ion beam sputtering apparatus. The effects of annealing at 300 °C for after-treatment of as-deposited films and the effects of periodic nitrogen ion bombardment onto growing Fe layers for growth process on their structure and magnetic properties have been investigated. The Hc of Fex N single layer films with nitrogen content of 2–3 at. % bombarded continuously by a mixture of argon and nitrogen ions decreased noticeably after annealing at 300 °C without significant decrease of saturation magnetization 4πMs. On the other hand , the Hc of the Fe/Fex N multilayered films bombarded periodically by the nitrogen ions at an accelerating voltage of 150 V decreased drastically, and took a minimum Hc of 1.5 Oe at proper cycle time tp. These results may be attributed to the relaxation of internal stress in films by annealing and the modification of microscopic morphology by ion bombarding, respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.342343
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  • 7
    Electronic Resource
    Electronic Resource
    Effects of hydrogen and nitrogen ion bombardments on soft magnetism of iron films during double-ion-beam sputtering (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 63 (1988), S. 4309-4311 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The dependence of the crystal structure and magnetic properties of iron films on preparation conditions has been investigated in detail by using a double-ion-beam sputtering system. During sputtering of an iron target by argon ions, the growing surfaces of iron films were bombarded by nitrogen or hydrogen ions with different kinetic energies below 500 eV. It has been found that these ions changed significantly the film structure and magnetic properties through the process of collision and reaction with iron atoms at the surface layer of growing film. As a result, the small amount of hydrogen or nitrogen added into iron films by ion bombardment improved effectively the soft magnetic properties of iron films. The iron films with saturation magnetization 4πMs as large as 22 kG and coercive force Hc as low as about 5 Oe were prepared by adjusting the accelerating voltage in the range of 100–300 V and the partial pressure of hydrogen or nitrogen in the range of 10−4 –10−5 Torr.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.340211
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  • 8
    Electronic Resource
    Electronic Resource
    Epidermal hyperplasia of walleye, Stizostedion vitreum vitreum (Mitchill), associated with retrovirus-like type-C particles: prevalence, histologic and electron microscopic observations (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish diseases 8 (1985), S. 0 
    Details
    ISSN: 1365-2761
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Epidermal hyperplasia consisting of discrete translucent raised outgrowths of cells were observed on the skin of walleye, Stizostedion vitreum vitreum (Mitchill), during their spawning period in the spring. The cells constituting the hyperplastic growths were limited to the epidermal layer, and were associated with surface budded, 120-nm-diameter, retrovirus-like particles located in the expanded intercellular spaces. These tumour-like growths were distinct from the other virus-associated skin lesions of walleye including dermal sarcoma, lymphocystis disease and herpesvirus-associated hyperplasia. Lesions could be differentiated by careful observation in the field and comparison of portions of each growth by histologic and electron microscopic observations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2761.1985.tb01276.x
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  • 9
    Electronic Resource
    Electronic Resource
    5-Fluorouracil for trabeculectomy in glaucoma (1987)
    Springer
    Graefe's archive for clinical and experimental ophthalmology 225 (1987), S. 403-405 
    Details
    ISSN: 1435-702X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The effect of 5-fluorouracil (5-FU) subconjunctival injection on the bleb formation and intraocular pressure (IOP) following trabeculectomy was studied in 18 glaucoma patients (20 eyes) with poor surgical prognosis. The results were analyzed by means of life tables and compared with those of 24 glaucoma eyes that had undergone trabeculectomy without postoperative administration of 5-FU after a previous repeat trabeculectomy that had failed. The surgical techniques and postoperative care were virtually identical between the eyes treated with 5-FU and eyes that had undergone repeat trabeculectomy, except that the latter group did not receive 5-FU postoperatively. At the end of 18-month follow-up, the success probability was 68.2% in the 5-FU treated eyes, and it was already as low as 10% in the nontreated eyes at the end of the 14-month follow-up. The difference was statistically highly significant (P 〈 0.001). Postoperative, subconjunctival injection of 5-FU appears to improve the prognosis following trabeculectomy in patients with a poor surgical prognosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02334165
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  • 10
    Electronic Resource
    Electronic Resource
    Unusual case of depressed fracture in the posterior cranial fossa associated with the syndrome of acute central cervical spinal cord injury (1989)
    Springer
    Neurosurgical review 12 (1989), S. 595-599 
    Details
    ISSN: 1437-2320
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We report here a seemingly very rare case of depressed fracture confined to the posterior cranial fossa accompanied by the “syndrome of acute central cervical spinal cord injury”, presenting with a variety of neurological sympotms with some consideraton of its onset mechanism.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01790708
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