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  • 1
    Electronic Resource
    Electronic Resource
    A RADIOAUTOGRAPHIC STUDY OF THE SYNTHESIS OF PHOSPHORUS COMPOUNDS IN CENTRAL NERVOUS TISSUES OF THE DOG (1964)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 11 (1964), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Gross and microscopic radioautographic observations have been made on the sequential distribution of 32P in the brain and spinal cord of the dog after intracisternal injection as orthophosphate.There appear to be two stages in the process of 32P incorporation into central nervous tissues. In the first, the phosphate in the CSF penetrates the central nervous tissue by diffusion. In the second, the phosphate is incorporated into various organic compounds in response to metabolic processes.The chronological changes in intraneuronal 32P localization indicate incorporation into cellular protein, RNA, DNA, and lipid and depend upon the turnover rate of 32P in these fractions.In the metabolism of phosphate the molecular layer of the cerebellum probably is involved only in rapid changes reflected by the acid-soluble fraction. The cellular layers in addition are concerned with slower processes such as incorporation into structural compounds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1964.tb06123.x
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  • 2
    Electronic Resource
    Electronic Resource
    Occult cranium bifidum (1983)
    Springer
    Neuroradiology 25 (1983), S. 217-223 
    Details
    ISSN: 1432-1920
    Keywords: Cranium bifidum ; encephalocoele ; meningocoele
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Six cases of congenital subscalp nodule associated with underlying cranium bifidum are reported. A plain skull roentgenogram showed a midline bone defect in the parieto-occipital region near the lambda. CT scan demonstrated neither brain malformation nor ventricular deformity except for the high position of the straight sinus. Cerebral angiography revealed an elongation of the vein of Galen and anomalous upward course of the straight sinus. At surgery, the tumor was solid and connected to a cord which extended intracranially via the cranium bifidum and blended with thickened arachnoid membrane either on the dorsal aspect of the midbrain or at the surface of the anterior vermis. Histologically, the tumor consisted in all cases of arachnoid cells and fibrous tissue with immature glial cells in one case. Possible pathogenesis of these tumors could be a result of the fetal nuchal bleb.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00540234
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  • 3
    Electronic Resource
    Electronic Resource
    No IR burst from the X-ray rapid burster MXB1730–335 (1980)
    [s.l.] : Nature Publishing Group
    Nature 286 (1980), S. 688-689 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The source was observed on 20-22 April 1979 at ?-, ?- and L- bands using a multi-colour photometer attached to the 1-m IR telescope at the Agematsu IR Observatory of Kyoto University. During the monitoring time, 4 h in three days, we could not detect any change of flux exceeding the statistical ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/286688a0
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  • 4
    Electronic Resource
    Electronic Resource
    Control of Shell Thickness in Silica-Coating of AgI Nanoparticles (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 29-30 (Nov. 2007), p. 191-194 
    Details
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Silica-coating of AgI nanoparticles with a Stöber method was carried out to find outreaction conditions for control of the shell thickness. The AgI nanoparticles were prepared fromAgClO4 and KI with the use of 3-mercaptopropyltrimethoxysilane (MPS) as a silane coupling agentand dimethylamine (DMA) catalyst for alkoxide hydrolysis. The silica-coating was performed at4.5×10-6-4.5×10-5 M MPS, 11-20 M water, 0.002-0.1 M DMA and 0.005-0.04 Mtetraethylorthosilicate at AgI concentrations of 0.1-1 mM. Consequently, AgI-silica core-shellparticles could be prepared with the use of 4.5×10-5 M MPS, 20 M water, 0.01 M DMA and 1 mMAgI. Silica shell thickness could be varied from 15 to 28 nm with an increase in the TEOSconcentration from 0.005 to 0.04 M
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.29-30.191.pdf
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  • 5
    Electronic Resource
    Electronic Resource
    Opsonic activity against zymosan of normal human serum of different blood types (1982)
    Springer
    Cellular and molecular life sciences 38 (1982), S. 131-132 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Serum opsonic activity against zymosan was found to be decreased more markedly in highly diluted O type serum than in the other 3 types, among which no difference was noted. Heat-killed bacteria were equally well opsonized with any type of serum. This peculiar activity of O type serum against zymosan was not affected by the removal of isohemagglutinins. No inhibitory activity was demonstrable in O type serum.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01944570
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  • 6
    Electronic Resource
    Electronic Resource
    Enhancement of human neutrophil oxygen consumption by chemotactic factors (1983)
    Springer
    Cellular and molecular life sciences 39 (1983), S. 604-606 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Human neutrophils preincubated with chemotactic factors showed enhanced OPZ-induced oxygen consumption. Maximum capacity of neutrophils to consume oxygen was found to be limited for both FMLP-treated cells and control cells. But with lower doses of OPZ, FMLP-treated cells consumed more oxygen than control cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01971119
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  • 7
    Electronic Resource
    Electronic Resource
    Lipid peroxidation in rabbit reticulocytes (1984)
    Springer
    Cellular and molecular life sciences 40 (1984), S. 380-381 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Lipid peroxides in rabbit erythrocytes and plasma were determined while anemia was induced by daily bleeding. They increased as reticulocytes increased and returned to normal with the morphological transformation to mature cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01952563
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  • 8
    Electronic Resource
    Electronic Resource
    Superoxide dismutase activity in rabbit reticulocytes (1983)
    Springer
    Cellular and molecular life sciences 39 (1983), S. 69-70 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Reticulocytosis was induced in rabbits by bleeding anemia and erythrocyte superoxide dismutase activity was determined. Reticulocytes were found to contain about 1.3 times as much activity as mature erythrocytes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01960633
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  • 9
    Electronic Resource
    Electronic Resource
    Momentum Distributions of Ortho-Positronium Dependent on Electronic State at Free Volume Walls in Insulators (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 607 (Nov. 2008), p. 53-57 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Age-momentum correlation (AMOC) spectroscopy, which can sensitively probe momentum distributions of positrons and positronium (Ps), was conducted for studying the pick-off process of the triplet bound state ortho-Ps (o-Ps) with electrons at the walls of the free volume holes. Influences of different chemical elements forming free volume and the size of the free volume are investigated. It is found that the momentum distribution of o-Ps pick off annihilation sensitively depends on the electronic state. The feasibility of the chemical analysis relevant to the free volume in insulating materials is discussed
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/20/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.607.53.pdf
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  • 10
    Electronic Resource
    Electronic Resource
    Free Volume and Oxygen Permeability in Polymers Related to Polymer Electrolyte Fuel Cells (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 607 (Nov. 2008), p. 58-60 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The mechanism of gas permeation in sulfonated polymers such as Nafion and sulfonated polyethersulfone (SPES) for polymer electrolyte fuel cells has been investigated from the viewpoint of free volume. Free volume was quantified using the positron annihilation lifetime (PAL) technique and O2 permeability was measured as a function of temperature or ion exchange capacity (IEC). Good linear correlations between the logarithm of the permeabilities and reciprocal free volume indicate that gas permeation in the sulfonated polymers depends strongly on the free volume. Comparison of Nafion with SPES and other relatively flexible chain polymers showed that the stiff chains of the perfluoroethylene backbone in Nafion make the O2 permeability much smaller than the corresponding flexible chain polymer with a similar free volume size. The O2 permeability in the K+-form of Nafion is systematically smaller than the H+-form, showing that the chain stiffness is enhanced by the ion exchange
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/20/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.607.58.pdf
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