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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 146 (1987), S. 542-544 
    ISSN: 1432-1076
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 144 (1985), S. 4-8 
    ISSN: 1432-1076
    Keywords: Common cold ; Rhinovirus ; Coronavirus ; Treatment with fixed-dose combinations ; Treatment with expectorants
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The common cold continues to be the major cause of absences from school and work. A better understanding of the epidemiology and the natural history should lead to less anxiety about this disease. Although there is still much misinformation among the public, the time should soon come when better-informed patients with this disease will make fewer visits to the physician and will not expect unnecessary and worthless treatment.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-0533
    Keywords: Chromatolytic neurons ; Werdnig-Hoffmann disease ; Immunocytochemistry ; Phosphorylated neurofilament ; Sudden infant death syndrome (SIDS)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Two cases of Werdnig-Hoffman disease are described. Chromatolytic neurons were found within the ventral horns of the spinal cord as well as in dorsal root ganglia, Clarke's column, cranial nerve nuclei and thalamus. Immunohistochemical staining demonstrated ohosphorylated neurofilament antigen within the cytoplasm of the chromatolytic neurons. This finding suggests that a defect in slow axonal transport or in the regulation of neurofilament phosphorylation may play a role in the pathogenesis of this disorder.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 339 (1989), S. 100-101 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] LONG after Darwin first urged us to base biological classification on genealogy, the largest classificatory units are still controversial. But these recent controversies result from rapid progress, not stagnation. It was two centuries after Linnaeus put bacteria in the animal kingdom and fungi in ...
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 326 (1987), S. 332-333 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT is a widespread fallacy that mitochondria are found in all eukaryote cells, and that the symbiotic theory of the origin of mitochondria from purple photosynthetic bacteria, for which the evidence is now exceedingly good, explains the origin of the eukaryote cell itself. In fact it is not ...
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 324 (1986), S. 416-417 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR-Having been concerned with the proper definition of eukaryote kingdoms1 5, I wish to comment on the controversy over prokaryote kingdoms between Lake67, Woese8 and colleagues910. Three distinct questions are at issue: phylogeny, the chopping up of phylogenetic trees to make taxa, and the ...
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1619-7089
    Keywords: SPECT ; 90Y ; Bremsstrahlung ; Radiation synovectomy ; Persistent synovitis ; Baker's cyst
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The use of SPECT with Bremsstrahlung radiation has been investigated in studies on patients undergoing 90Y therapy for persistent synovitis of the knee. In particular, its value in the estimation of 90Y uptake into Baker's cysts was assessed and, to this end, realistic ‘knee phantoms’ were employed in order to calibrate for cysts of different size. Problems associated with the measurement of the extensive Bremsstrahlung spectrum and the estimation of cyst volume have been discussed. It is shown that, although the apparent volume of a cyst is markedly dependent on the chosen count rate threshold, volumes greater than about 30 ml can be estimated with reasonable accuracy using a threshold of 50%. The uptake of 90Y in cysts, measured on 3 occasions within the first 2 days in 10 patients, showed wide variation (0%–40%) between patients and was poorly related to the size of cysts on arthrograms and to the clinical response to therapy. In these studies, the ability to analyse SPECT slices provided a distinct advantage over planar imaging for discriminating between 90Y uptake in cysts and adjacent sites. Retention of 90Y in the total knee was also widely variable, with losses of 2%–38% observed 2 days after injection which, in general, were not fully accounted for by uptake in liver or lymph nodes. The changing distribution of 90Y colloid in the knee during the first two days, as observed in some patients, might explain part of the discrepancy.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1619-7089
    Keywords: 99mTc-phosphine-isocyanide ; Blood pool imaging ; Myocardial imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A new 99mTc-phosphine-isocyanide complex with the general structure [99mTc (DEPE)2 (CNR)2]+ has been synthesised and tested in animals and one human. In three animal species (rat, rabbit, dog), the complex is an efficient myocardial imaging agent, while in humans it remains in the blood pool. The complex is 100% protein bound in animals and humans, but whereas in humans it is attached to a 51.5 kdalton protein (probably prealbumin), in rabbits it appears to be bound to a larger macromolecule (M.W.〉 100 kdalton). The efficiency of the complex for blood pool labelling was tested in a human volunteer and compared with the standard in vivo red cell labelling technique with stannous pyrophosphate. A satisfactory radionuclide angiogram could be performed with less than 370 MBq of the complex. The count rate for the complex (cps/MBq) was 15% higher than that obtained with the labelled red cells and the absence of splenic activity was notable. In humans this complex appears to be an efficient blood pool labelling agent which might be useful for radionuclide ventriculography.
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  • 9
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Experimental tests have been conducted on commercially available fuses and resistors under fast high-voltage pulsed (10-μs) conditions to determine their ability to protect capacitor bank components during faults. Currents in the resistors ranged from 20 to 40 kA per resistor. The experimental results for the fuses have been compared to the manufacturer's data for minimum melt and maximum let-through action integrals and to exploding bridge wire computer models.
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  • 10
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 342 (1989), S. 870-870 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] EIGHTY years ago, Mereschkowsky suggested that chloroplasts of green plants and red, brown and other algae evolved from differently coloured symbionts that independently took up residence inside the cells of different protozoa. Although the origin of chloroplasts from prokary-otic (bacterial) ...
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