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  • 1
    Electronic Resource
    Electronic Resource
    Reconstruction of craniotomy burr-holes with autologous bone blugs made by a new hole-saw (1990)
    Springer
    Acta neurochirurgica 105 (1990), S. 132-134 
    Details
    ISSN: 0942-0940
    Keywords: De Martell drill ; hole-saw ; bone plugs ; Tiseel®
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A new craniotomy tool is described. The original De Martell drill was redesigned into a hole-saw for simultaneous production of burr-holes and appropriate autologous bone plugs. The plugs can easily be reinserted and locked in place using bone dust and Tiseel glue permitting appropriate healing and satisfactory cosmetic appaerance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01669996
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  • 2
    Electronic Resource
    Electronic Resource
    Lack of effect of omeprazole, cimetidine, and ranitidine on the pharmacokinetics of ethanol in fasting male volunteers (1992)
    Springer
    European journal of clinical pharmacology 42 (1992), S. 209-212 
    Details
    ISSN: 1432-1041
    Keywords: Ethanol ; gastric acid inhibition ; pharmacokinetics ; antisecretory drugs ; omeprazole ; ranitidine ; cimetidine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The effects of three gastric antisecretory drugs on the pharmacokinetics of ethanol have been studied in a randomized crossover experiment. Male medical students (n=12) took ethanol 0.8 g/kg body weight at 08.00 h after an overnight fast. On seven successive days before drinking ethanol they were given omeprazole 20 mg, cimetidine 800 mg, ranitidine 300 mg, or no drug, with a period of at least 7 days between treatments. The peak blood ethanol concentration of 21.9 to 22.8 mmol·l−1 occurred at 64 to 70 min after the end of drinking. The rate of disappearance of ethanol from the blood ranged from 3.0 to 3.3 mmol·l−1·h−1 and the rate of removal from the whole body ranged from 8.0 to 8.5 g·h−1. The apparent volume of distribution of ethanol was almost the same for all four treatments: mean 0.68 l·kg−1, corresponding to a mean total body water of 441 (59% body weight). Mean areas under the concentration-time profiles of ethanol ranged from 83 to 87 mmol·l−1·h for the four treatments. It is concluded that omeprazole, cimetidine and ranitidine do not alter the kinetics of a moderate dose of ethanol.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00278486
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  • 3
    Electronic Resource
    Electronic Resource
    Telescopic suction tube for microsurgery (1992)
    Springer
    Acta neurochirurgica 118 (1992), S. 162-163 
    Details
    ISSN: 0942-0940
    Keywords: Suction ; telescopic suction tube ; microsurgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary An adjustable telescopic suction tube has been developed for microsurgery. Owing to this innovation, the surgeon can easily set the suction tube to a suitable length by gently pulling the end of the telescopic tube out or in.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01401302
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  • 4
    Electronic Resource
    Electronic Resource
    New microsurgical suction tubes (1990)
    Springer
    Acta neurochirurgica 104 (1990), S. 156-157 
    Details
    ISSN: 0942-0940
    Keywords: Suction ; suction tube ; microsurgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A set of new suitable microsurgical suction tubes has been designed especially suitable for fragile and delicate tissues such as the nervous and vascular tissues in the brain and spinal cord. The set provides two different shafts and five different tubes for superficial of deep micro- as well as macro-operations. These new suction tubes have two major advantages compared to traditional suction tubes. Firstly: the perforated smooth suctiontip allows continuous suction without damage to the tissue and secondly: the tubes are quickly and easily exchanged from the suction shaft when necessary.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01842835
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  • 5
    Electronic Resource
    Electronic Resource
    Membrane Lipids in the Aging Human Brain (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 56 (1991), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: The membrane lipid composition of human brain has been studied in 21 men and 18 women 60–97 years of age. This brain tissue series is unique, because it has been obtained only from individuals who lived a normal social life in their own homes and died suddenly and unexpectedly from arteriosclerotic heart disease or ruptured aortic aneurysms. They had no history of neurological or psychiatric disease. Macroscopic and microscopic examinations ruled out any signs of organic brain disorder. The percentage of solids diminished continuously during the whole period, but the marked individual differences suggested large variations in the hydration of the brain. The content of membrane lipids also diminished continuously up to 90 years of age, when a marked diminution in level of gangliosides and cerebrosides occurred, a result indicating a rapid reduction in amount of neuronal membranes and myelin. The clinical implications of the variation in brain hydration and the rapid loss of membrane lipids after 90 years of age are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1991.tb03466.x
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  • 6
    Electronic Resource
    Electronic Resource
    Membrane Lipids of Adult Human Brain: Lipid Composition of Frontal and Temporal Lobe in Subjects of Age 20 to 100 Years (1994)
    Oxford, UK : Blackwell Science Ltd
    Journal of neurochemistry 63 (1994), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: The membrane lipid composition of human frontal and temporal cortices and white matter has been studied in 118 subjects, age 20–100 years. The brain specimens were selected from subjects who lived a normal social life and died suddenly and unexpectedly with no history of neurologic or psychiatric disease. Macroscopic and microscopic examinations ruled out any signs of organic brain disorder. The sudden death eliminated all risk of changes over a long agonal stage. The data for total solids and major lipids are summarized in graphic form. Total solids, phospholipids, and cholesterol diminished linearly from 20 years of age in frontal and temporal cortices, whereas total solids phospholipids, cholesterol, cerebroside, and sulfatide showed a curvilinear diminution in frontal and temporal white matter. Gangliosides differed from the other lipids, showing an almost constant concentration between 20 and 70 years of age with a slight peak around 50 years of age. The ganglioside pattern showed continuous change with aging, with decreasing proportions of GM1 and GD1a and increasing proportions of GD1b, GM3, and GD3. Equations are given that can be used to calculate the lipid composition of normal human frontal and temporal cortices and white matter at any age between 20 and 100 years of age. These data can be used where data by direct analysis are not available for comparison with values for various pathological states.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1471-4159.1994.63051802.x
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  • 7
    Electronic Resource
    Electronic Resource
    Intrathecal anaesthesia for day-care surgery A retrospective study of 160 cases using 25- and 26-gauge spinal needles (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Anaesthesia 45 (1990), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The records of 160 day-care surgical patients who received intrathecal anaesthesia were reviewed. No major complications were recorded. The incidence of postspinal headache after puncture with a 25-gauge spinal needle was nearly four times more frequent compared to a 26-gauge needle. The occurrence of postspinal headache in patients over the age of 45 years was significantly less frequent (p 〈 0.05) than in younger patients. Intrathecal anaesthesia was acceptable to 91% of outpatients in this group.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2044.1990.tb14452.x
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  • 8
    Electronic Resource
    Electronic Resource
    Elastic wave propagation in a radially anisotropic medium (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical journal international 118 (1994), S. 0 
    Details
    ISSN: 1365-246X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: The 2-D propagation of horizontally polarized shear waves in a type of radially anisotropic elastic medium is considered. The shear moduli and the wave speeds are different in the radial and angular directions and the medium is thus both anisotropic and inhomogeneous, with a material singularity at the origin. Two simple wave-propagation problems are considered: radiation by a point source in an unbounded radially anisotropic medium, and the scattering of a plane wave by a radially anisotropic disc in an isotropic surrounding. The results are displayed by contour plots of the displacement field in the vicinity of the point source or the disc. Results for both time-harmonic disturbances and pulses are given. The most striking feature of the results is the focusing in the radial direction of the radiation from the point source that appears when the radial wave speed is greater than the angular one.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-246X.1994.tb03972.x
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  • 9
    Electronic Resource
    Electronic Resource
    Strong Donor Mononuclear Cell Reactivity for Herpes Simplex Virus (HSV) Antigen in HSV Immune Donors Combined with Recipient Seropositivity for HSV is Associated with Acute Graft-versus-Host Disease (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 34 (1991), S. 0 
    Details
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Prior to bone marrow transplantation (BMT) titres of IgG antibodies for cytomegalovirus (CMV), herpes simplex virus (HSV) and varicella zoster virus (VZV) were analysed in 51 donors and recipients of allogeneic bone marrow. Donor mononuclear cells from peripheral blood and bone marrow cells were stimulated with antigen prepared from CMV, HSV and VZV. High IgG titres for HSV in the recipient were associated with grade II–III acute graft-versus-host disease (GVHD) (P= 0.05). Furthermore, the combination of positive IgG titre for HSV antibodies in the recipient, and strong donor blood mononuclear cell reactivity to HSV antigen in HSV immune donors, significantly increased the incidence of grade II–III acute GVHD (P= 0.04). The data suggest that HSV immune donor mononuclear cells may initiate a GVH reaction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3083.1991.tb01519.x
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  • 10
    Electronic Resource
    Electronic Resource
    A comparison of exact first order and spring boundary conditions for scattering by thin layers (1992)
    Springer
    Journal of nondestructive evaluation 11 (1992), S. 175-184 
    Details
    ISSN: 1573-4862
    Keywords: Elastic waves ; thin layers ; spring boundary conditions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Mathematics
    Notes: Abstract In scattering problems for time-harmonic elastic waves, thin elastic layers are often of interest, e.g., in laminates. Various ways of substituting such layers by some effective boundary conditions have been proposed, and these are briefly reviewed. A rational way of obtaining boundary conditions that are exact to first order in the layer thickness is then described. For a thin spherical layer numerical comparisons are performed between these “exact” first order boundary conditions, the commonly used spring boundary conditions and the exact solution, and it is shown that the “exact” boundary conditions are far superior to the spring boundary conditions in most situations. A drawback with the “exact” boundary conditions is that they are quite complicated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00566408
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