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  • 1
    Electronic Resource
    Electronic Resource
    A new compact electron spin polarimeter with a high efficiency (1997)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 68 (1997), S. 4390-4395 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: We have developed a new compact retarding-potential Mott spin polarimeter and achieved an efficiency of 1.9×10−4 for gold target operating in 25 keV. A novel design of the retarding field electron optics with 0.59 sr collection solid angle for scattered electrons was adopted based on Monte Carlo calculations for the spin-dependent electron scattering process and electron beam ray-tracing calculations. We have combined the new spin polarimeter with an angle-resolved photoelectron spectrometer and measured the spin- and angle-resolved photoelectron spectra and studied the spin-dependent electronic structure of Ni(110) along the Γ¯S¯ line of its surface Brilluoin zone. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1148401
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  • 2
    Electronic Resource
    Electronic Resource
    β-Endorphin Enhances Phagocytosis of Latex Particles in Mouse Peritoneal Macrophages (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 42 (1995), S. 0 
    Details
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The effects of β-endorphin (βEnd) on phagocytosis in peritoneal macrophages were examined by using flow cytometry (FCM). βEnd enhanced phagocytosis in a dose-dependent manner. Leucine—enkephalin (Leu-Enk), methionine—enkephalin (Met—Enk), α-endorphin (αEnd), γ-endorphin (γEnd), αEnd (18–31) and βEnd (28–31) had no such activity. βEnd (1–27) and βEnd (6–31) enhanced phagocytosis less effectively than βEnd did. Naloxone did not inhibit the enhancement of phagocytosis induced by βEnd. Unstimulated control phagocytosis was partially suppressed in Ca2+-free EGTA-containing solution and even in this solution βEnd enhanced phagocytosis. However, the enhancement was suppressed in the solution containing BAPTA-AM. The present study showed that βEnd enhanced extracellular Ca2+ ([Ca2+]o)-dependent and -independent phagocytosis and that the enhancement is largely dependent on intracellular Ca2+ ([Ca2+]i). These results support the contention that βEnd is one of the mediators that modulates the immune system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3083.1995.tb03661.x
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  • 3
    Electronic Resource
    Electronic Resource
    Myelodysplastic syndrome presenting as third malignancy after non-Hodgkin's lymphoma and osteosarcoma (1997)
    Springer
    Annals of hematology 74 (1997), S. 95-97 
    Details
    ISSN: 1432-0584
    Keywords: Key words Third malignancy ; Myelodysplastic syndrome ; Non-Hodgkin's lymphoma ; Osteosarcoma ; Alkylating agents
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  The patient was initially diagnosed as having non-Hodgkin's lymphoma and was cured following treatment with prednisolone, vincristine, daunorubicin, l-asparaginase, and cyclophosphamide. Seven years and two months later, he developed osteosarcoma in his right femur. He received chemotherapy consisting of methotrexate, carboplatin, etoposide, and ifosfamide and again obtained remission. After 2 years and 7 months, however, he was found to have pancytopenia with morphological abnormalities in the erythroid and myeloid series. Diagnosis of myelodysplastic syndrome (MDS) was made. Cytogenetic analysis of bone marrow cells revealed -5 and -7, which is typical for secondary MDS. This is a rare case of third malignancy presumably caused by alkylating agents.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002770050264
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  • 4
    Electronic Resource
    Electronic Resource
    Effectiveness of intra-arterially infused papaverine solutions of various concentrations for the treatment of cerebral vasospasm (1997)
    Springer
    Acta neurochirurgica 139 (1997), S. 706-711 
    Details
    ISSN: 0942-0940
    Keywords: Cerebral vasospasm ; concentration ; papaverine ; subarachnoid haemorrhage
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We evaluated the effect of intra-arterially infused papaverine solutions of various concentrations on cerebral vasospasm following subarachnoid haemorrhage. A total of 90 vascular territories in 46 patients with symptomatic cerebral vasospasm after subarachnoid haemorrhage were treated with intra-arterial infusions of papaverine. In all patients, papaverine was infused at the top of the internal carotid artery (ICA). Of the 90 vascular territories, 30 vascular territories in 14 patients were treated with an infusion of 0.1–0.2% (weight/volume) papaverine (Group 1), 30 vascular territories in 16 patients were treated with a 0.4% (w/v) papaverine infusion (Group 2), and 30 vascular territories in 16 patients were treated with an infusion of 0.8–2.0% (w/v) papaverine (Group 3). Among the three groups, we compared the vasodilatory effects of papaverine by assessing the angiographical and clinical improvements following the treatment. When 0.4% (w/v) papaverine was infused, 24 vascular territories (80%) were successfully dilated and 7 patients (44%) showed a marked reversal of neurological deficits due to vasospasm. Therefore, 80 mg/20 ml (0.4% (w/v)) papaverine infused over a 10-minute period proved to be a beneficial concentration. Transient focal neurological deficits due to the infusion of papaverine occurred in 1 Group 1 patient (7%), 1 Group 2 patient (6%), and 7 Group 3 patients (44%). Highly concentrated papaverine had a higher risk of temporary deterioration. In conclusion, the papaverine concentration of 0.4% (w/v) infused at the top of the ICA was a safe and adequate concentration for treating cerebral vasospasm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01420042
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  • 5
    Electronic Resource
    Electronic Resource
    Effects of water-soluble (1999)
    Springer
    Journal of materials science 10 (1999), S. 59-64 
    Details
    ISSN: 1573-4838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Technology
    Notes: Abstract The effect of the amount of a water-soluble, lactose, on cephalexin (CEX) release from bioactive bone cement consisting of bisphenol-α-glycidyl methacrylate (bis-GMA), triethylene-glycol dimethacrylate (TEGDMA) resin and apatite- and wollastonite-containing glass-ceramic (A–W GC) powder was investigated. A–W GC powder containing 5% CEX and lactose powders hardened within 5 min after mixing with bis-GMA/TEGDMA resin, and furthermore its compressive strength was expected to be higher than that of polymethylmethacrylate cement. In vitro CEX release from bioactive bone cement pellets in a simulated body fluid at pH 7.25 and 37°C continued for more than 2 wk. The drug-release rate increased with increasing amount of lactose powder in the mixture. CEX release profiles followed the Higuchi equation in the initial stage, but not in later stages. As hydroxyapatite was precipitated out on the cement surface, the CEX release rate decreased. The micropore distribution of the cements measured by mercury porosimetry also supported the variation in drug release due to cement porosity being mainly a result of the dissolution of lactose in the cements. These results suggest that the rate of CEX release from bioactive bone cement could be controlled by varying the amount of lactose in the cement system. © 1999 Kluwer Academic Publishers
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008848328724
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  • 6
    Electronic Resource
    Electronic Resource
    Characterization of glass/steel interfacial zone (1996)
    Springer
    Journal of materials science 15 (1996), S. 1669-1673 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00636191
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