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  • 1
    Electronic Resource
    Electronic Resource
    Three-dimensional computer simulation of ion beam scattering by an electrostatic reflector (1987)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 58 (1987), S. 1901-1904 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A three-dimensional computer model was used to study the scattering of a reflected lithium ion beam by an electrostatic reflector. Results show that for ion gun systems for active space plasma experiment applications, beam scattering of less than 1° can be attained with electrostatic reflectors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1139663
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  • 2
    Electronic Resource
    Electronic Resource
    Transient cells of the developing mammalian telencephalon are peptide-immunoreactive neurons (1987)
    [s.l.] : Nature Publishing Group
    Nature 325 (1987), S. 617-620 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We identified the subplate and marginal zone cells unam-bigously by their birthdate. These cells undergo their final round of cell division and migrate away from the ventricular zone between embryonic day 24 (E24) and E30 (gestation is 65 days in the cat)1. In contrast, cells of the cortical layers ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/325617a0
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  • 3
    Electronic Resource
    Electronic Resource
    Characterization of N-CBz-glycyl-glycyl-arginyl peptidase and glycyl-prolyl peptidase of Bacteroides gingivalis (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of periodontal research 22 (1987), S. 0 
    Details
    ISSN: 1600-0765
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Bacteroides gingivalis produces large amounts of proteolytic enzymes which may play a role in its virulence. These enzymes may participate in the tissue destruction of the inflammatory process. In this study, the characteristics of two such enzymes, N-CBz-glycyl-glycyl-arginyl peptidase (N-CBz-Gly-Gly-Arg peptidase) and glycyl-prolyl peptidase (Gly-Pro peptidase) were investigated. The enzymes eluted in different peaks from an anion exchange column. N-CBz-Gly-Gly-Arg peptidase was associated with cells up to 48 h in culture. If cultured longer, it also released in the supernatant. It exhibited optimal activity between pH of 7.0 and 7.5 and was readily inactivated by heat treatment (45°C for 15 min). The enzyme activity was inhibited by p-chloromercuribenzoic acid (PCMB), leupeptin and antipain, suggesting that it is a thiol protease. The B. gingivalis N-CBz-Gly-Gly-Arg peptidase was different from the serum enzyme that digests the same substrate. The serum enzyme was more resistant to heat treatment and was inhibited by diisopro-pylfluorophosphate (DFP). B. gingivalis also produced Gly-Pro peptidase that is released in the supernatant. The enzyme has an optimal pH range between 7.5 and 8.0. The B. gingivalis Gly-Pro peptidase was inhibited by DFP, suggesting that it represents a serine protease. The serum Gly-Pro peptidase did not differ from the bacterial enzyme with respect to its sensitivity to inhibitors; however, they were markedly different in heat sensitivity. The bacterial enzyme was completely inactivated at 60°C for 30 min, whereas the serum enzyme was not inactivated even at 1 h at 60°C.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0765.1987.tb01608.x
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  • 4
    Electronic Resource
    Electronic Resource
    Experimental studies on band saw blade vibration (1981)
    Springer
    Wood science and technology 15 (1981), S. 145-159 
    Details
    ISSN: 1432-5225
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary The band saw blade vibration under non-moving and moving conditions has been experimentally studied for band saw blades unfitted with saw tension and back crown, fitted only with saw tension, and only with back crown. The lateral natural frequency of a band saw blade was found to decrease by fitting saw tension in a saw blade, but there was little or no effect for blades having only back crown. The torsional natural frequency of a band saw blade increased by fitting saw tension in a saw blade, but again there was little or no effect of fitting back crown in a blade. The lateral natural frequency decreased by tilting the upper wheel for the band saw blades investigated. On the contrary, when the upper wheel was tilted the torsional natural frequency increased for an untensioned blade with no back crown, and blades fitted only with back crown, however, there was little or no effect for a band saw blade fitted only with tension. The lateral and torsional natural frequencies significantly affected the over all self-excited displacement vibration of band saw blades. However, the displacement vibration due to the frequency of the number of wheel rotation affected significantly the over all self-excited displacement vibration of a band saw blade fitted with excessive back crown.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00367860
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  • 5
    Electronic Resource
    Electronic Resource
    Magnetic resonance imaging of cerebral infarction: Time course of Gd-DTPA enhancement and CT comparison (1988)
    Springer
    Neuroradiology 30 (1988), S. 372-378 
    Details
    ISSN: 1432-1920
    Keywords: Magnetic resonance (MR) imaging ; Gd-DTPA ; Brain infarction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Thirty-five patients (7 females and 28 males) with cerebral infarction and suspicion of cerebral infarction of 4 h to 27 months duration were studied 45 times with magnetic resonance (MR) imaging using Bd-DTPA. Spin echo (SE) images were obtained before and after the administration of Gd-DTPA (0.1 or 0.15 mmol/kg) and compared with the enhanced CT. MR imaging using Gd-DTPA was more sensitive than enhanced CT and very useful for detecting a new focus of cerebral infarction, especially in the cases with multiple infarcted areas and for showing the extent of cortical and subcortical infarction. In most cases the MR enhancement was obvious in the subacute stage, especially after cerebral embolism, and the signal intensity of the lesion tended to show a gradual increase. The diagnosis of embolism was accepted on the basis of acute onset without prior TIA, coupled with angiography showing the embolus itself and/or a capillary blush and a wide area of infarction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00404100
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  • 6
    Electronic Resource
    Electronic Resource
    Reversal of the reserpine-induced ptosis by l-threo-3,4-dihydroxy-phenylserine (l-threo-DOPS), a (−)-norepinephrine precursor, and its potentiation by imipramine or nialamide (1986)
    Springer
    Naunyn-Schmiedeberg's archives of pharmacology 332 (1986), S. 243-246 
    Details
    ISSN: 1432-1912
    Keywords: l-threo-DOPS ; Imipramine ; Nialamide ; Reserpine ; Ptosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effect of l-threo-DOPS on the reserpine-induced ptosis in mice and its modification by imipramine, a norepinephrine (NE) uptake inhibitor, or nialamide, a monoamineoxidase inhibitor, were studied. Intraperitoneal (i.p.) injection of l-threo-DOPS (800 mg/kg) significantly reduced the severity of the ptosis. This reversal of the ptosis by l-threo-DOPS was markedly potentiated by i.p. injection of either imipramine (2.5 mg/kg) or nialamide (30 mg/kg). Response to l-threo-DOPS was also significantly potentiated by intracerebroventricular (i.c.v.) injection of imipramine (10 μg). On the other hand, this treatment with imipramine (10 μg, i.c.v.) also significantly potentiated the reversal of the ptosis by NE (20 μg, i.c.v.), but the reversal by the subcutaneous (s.c.) injection of NE (1 and 3 mg/kg) was not affected. Reserpine (5 mg/kg, i.p.) markedly decreased the brain content of NE in mice, whereas l-threo-DOPS (400 mg/kg, i.p.) slightly restored it. Moreover, by the pretreatment with nialamide (30 mg/kg, i.p.), l-threo-DOPS produced a significant increase in the brain content of NE in reserpinetreated mice. These results suggested that l-threo-DOPS was capable of reversing the reserpine-induced ptosis due to the formation, at least in part of (−)-NE at the synaptic sites of central noradrenergic neurons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00504861
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  • 7
    Electronic Resource
    Electronic Resource
    Structure of funicin, antimicrobial substance from Aspergillus funiculosus, C17H18O5 (1983)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 39 (1983), S. 268-270 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270183004357
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  • 8
    Electronic Resource
    Electronic Resource
    Matrix isolation spectroscopy by A. J. Barnes, W. J. Orville-Thomas, A. Müller and R. Gaufrés (1982)
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 38 (1982), S. 751-751 
    Details
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567739482001545
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  • 9
    Electronic Resource
    Electronic Resource
    The Purkinje fiber-myocardial cell region in the goat heart as studied by combined scanning electron microscopy and chemical digestion (1984)
    Springer
    Cellular and molecular life sciences 40 (1984), S. 849-850 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The 3-dimensional architecture of the junctional region between Purkinje fibers and ordinary myocardial cells has been closely studied by combined scanning electron microscopy and chemical digestion in the goat heart. It was revealed that the Purkinje fibers forming the terminal arborization of the atrioventricular bundle are followed by transitional cells which are in contact with ordinary myocardial cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01951989
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  • 10
    Electronic Resource
    Electronic Resource
    Encephalomyocarditis (EMC) virus-induced diabetes mellitus prevented byCorynebacterium parvum in mice (1987)
    Springer
    Cellular and molecular life sciences 43 (1987), S. 430-431 
    Details
    ISSN: 1420-9071
    Keywords: EMC virus ; Corynebacterium parvum ; diabetes mellitus ; immunity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Corynebacterium parvum prevented the development of encephalomyocarditis virus-induced diabetes in mice, when it was given 3–14 days before the virus infection. This treatment inhibited virus replication in the pancreas of the infected mice at an early stage of the infection.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01940440
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