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  • 1995-1999  (9)
  • 1980-1984  (5)
  • 1997  (9)
  • 1983  (5)
  • 1
    Electronic Resource
    Electronic Resource
    GaN hexagonal microprisms with smooth vertical facets fabricated by selective metalorganic vapor phase epitaxy (1997)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 71 (1997), S. 2196-2198 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Selective growth of GaN was performed by low-pressure metalorganic vapor phase epitaxy using a mask-patterned GaN epitaxial layer on a (0001) sapphire substrate. GaN hexagonal microprisms of 5–16 μm in diameter, with smooth vertical facets and no ridge growth, were fabricated on a (0001) sapphire substrate. This vertical {11¯00} facet of GaN was parallel to a {112¯0} face of the sapphire substrate. Both the use of an epitaxial GaN layer on the sapphire substrate and low working pressure contributed to obtaining smooth top and vertical facet surfaces. Also, the stripe structures of GaN were obtained that had a rectangular cross section. Moreover, the selection of the mask-patterning direction was found to be important because of the 30° rotation of the crystallographic orientation between the GaN layer and the sapphire substrate. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.119379
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  • 2
    Electronic Resource
    Electronic Resource
    MORPHOLOGICAL STUDIES RELATING TO THE FRACTURE STRESS AND FRACTURE TOUGHNESS OF SILICON NITRIDE (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Fatigue & fracture of engineering materials & structures 20 (1997), S. 0 
    Details
    ISSN: 1460-2695
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract— Microstructure and mechanical properties of HP (Hot Pressed), HP/GP (Gas Pressed), and HP/HIP (Hot Isostatic Pressed)—Si3N4 are studied using scanning electron microscopy, bending tests and the indentation fracture method. The grain diameter distribution is analyzed to clarify the relationship between microstructure and mechanical properties; and also the bending strength and fracture toughness. It is shown that bending strength increases with decreasing grain diameter. The results also show that a Hall—Petch type of relationship is obtained between grain diameter and fracture strength. The fracture toughness shows a linear relationship with 〈inlineGraphic alt="inline image" href="urn:x-wiley:8756758X:FFE829:FFE_829_fu1" location="image_n/FFE_829_fu1.gif" extraInfo="missing"/〉, where σF= bending strength, β= a proportionality factor and da= average grain diameter, and is closely related to the aspect ratio of Si3N4 grains. It is concluded, from the morphological analysis, that a microstructure composed of Si3N4 grains, with both a small grain diameter and a large aspect ratio, is effective in improving both the fracture strength and fracture toughness.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1460-2695.1997.tb01527.x
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  • 3
    Electronic Resource
    Electronic Resource
    Reduction of Staphylococcus aureus in atopic skin lesions with acid electrolytic water - a new therapeutic strategy for atopic dermatitis (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Allergy 52 (1997), S. 0 
    Details
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The subjects studied were 22 pediatric patients newly diagnosed with atopic dermatitis (AD); 11 were treated with acid electrolytic water (AEW), which has a strong bactericidal activity (AEW group), and the other 11 with tap water (placebo group). AEW or tap water, 1 ml/cm2 (body surface area), was sprayed on their skin lesions with a spray gun each twice a day for a week. There were no significant differences between the two groups in regard to sex, age, serum IgE, peripheral eosinophil counts, grading scores of AD, and duration of AD. The study was designed as a randomized, placebo-controlled, double-blind clinical trial. Colony counts of Staphylococcus aureus on skin lesions in the AEW group, both 3 min after spraying (P 〈 0.05) and after 1 week of skin treatment (P 〈 0.01), were significantly decreased as compared with colony counts before treatment, while there was no significant difference in the placebo group before and after treatment. Grading scores of AD also decreased in the AEW group (P 〈0.01), but not in the placebo group. Both the subjects' guardians' evaluation and a referee physician's evaluation of treatment effect were significantly higher in the AEW group than in the placebo group (P 〈 0.01). AEW may be potentially effective in preventing a staphylococcal chronic inflammation in AD because of its strong bactericidal activity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1398-9995.1997.tb02423.x
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  • 4
    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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  • 5
    Electronic Resource
    Electronic Resource
    Damage depth-profiling of Au+ and O+-irradiated amorphous PEEK by monoenergetic positron beams (1997)
    Springer
    Applied physics 64 (1997), S. 491-495 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 78.70.Bj; 61.80.-x
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: + and O+ ions was exposed to positron beams to measure the positron annihilation Doppler broadening as a function of the positron energy. As in the previous case of O+-irradiated semicrystalline PEEK, the annihilation lines recorded at relatively low positron energies became broader with increasing irradiation dose. The thickness of the damaged layer estimated from the positron data was compared with the mean depth of the implanted ions calculated by the TRIM code. For the Au+-irradiated samples, some discrepancy was observed between the two quantities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003390050507
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Treatment with rhG-CSF for osteomyelitis in a patient with p47-phox-deficient chronic granulomatous disease (1997)
    Springer
    Annals of hematology 75 (1997), S. 243-246 
    Details
    ISSN: 1432-0584
    Keywords: Key words Chronic granulomatous disease ; p47-phox deficiency ; G-CSF ; Superoxide anion (O2 ; ) ; Osteomyelitis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  A 24-year-old woman with osteomyelitis was diagnosed as having p47-phox-deficient chronic granulomatous disease (CGD). The patient showed a marked deficiency of p47-phox, which is very rare in Japan. As the clinical response to various antibiotics including sulfamethoxazole-trimethoprim was not satisfactory, we added recombinant human granulocyte colony-stimulating factor (rhG-CSF) to the treatment protocol. We report the beneficial clinical course of the patient, together with the effect of rhG-CSF on the granulocyte function, and the present report indicates that rhG-CSF is useful for the treatment of antibiotic-resistant infection in the variant type of p47-phox-defective CGD.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002770050351
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  • 7
    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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  • 8
    Electronic Resource
    Electronic Resource
    Comparison of the DNA content of megakaryocytes identified immunologically with that identified morphologically (1997)
    Springer
    Histochemistry and cell biology 108 (1997), S. 115-120 
    Details
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract  We devised a new microfluorometric method for determining the ploidy of megakaryocytes identified immunologically in bone marrow smears. The smears were immunostained by incubation with mouse monoclonal anti-glycoproteins (GP) IIb antibodies, followed by fluorescein isothiocyanate-conjugated goat anti-mouse IgG antibodies. They were then stained with 4′,6-diamidino-2-phenylindole (DAPI). Megakaryocytes were identified by their GPIIb immunofluorescence using a microfluorometer and, after the filters were changed, their DNA content was assayed by measuring the intensity of DAPI fluorescence. This intensity was shown to be proportional to the DNA content when the aperture of the objective lens was reduced. We compared these results with those obtained when megakaryocytes were identified morphologically, using DAPI staining after Wright-Giemsa destaining. In all 12 normal controls, the ploidy peaks were shown to be 16N by both methods, and the mean ploidy detected by the immunological method was only reduced 0.961 times relative to the estimate from the morphological method. In contrast, in eight myelodysplastic syndrome (MDS) patients, the ploidy peaks were either 8N or 4N and the mean was reduced by 0.906 times (P=0.018). Thus we could immunologically identify small megakaryocytes which we could not identify morphologically. Therefore, this method is useful for measuring megakaryocytic ploidy, especially in the pathological megakaryocytes of MDS patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004180050152
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  • 9
    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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  • 10
    Electronic Resource
    Electronic Resource
    A case of 21q-syndrome with half normal SOD-1 activity (1983)
    Springer
    Human genetics 〈Berlin〉 64 (1983), S. 200-202 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary A male Japanese infant was found to have a chromosomal aberration of del(21)(qter→q22.1-2) and decreased superoxide dismutase (SOD) activity in erythrocytes and polymorphonuclear and mononuclear leukocytes. The cuprozinc enzyme (SOD-1) level was 40–50% of normal, while the cyanide-insensitive managanese enzyme (SOD-2) activity was within the normal range. Determination of SOD activity in blood cells is a valuable method of classification of the syndrome.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00327128
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