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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Annales geophysicae 17 (1999), S. 437-437 
    ISSN: 0992-7689
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 60 (1982), S. 1006-1009 
    ISSN: 1432-1440
    Keywords: Anaphylactoid reactions ; Anaphylaxis ; Anaesthetics ; Epidemiology ; Mechanisms ; Anaphylaktoide Reaktionen ; Anaphylaxie ; Anästhetika ; Epidemiologie ; Mechanismen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Hundert schwere Anästhesiezwischenfälle, die in den Jahren 1975–1980 an Krankenhäusern im Osten Frankreichs beobachtet wurden, sind in der immunologischen Einheit des Universitätskrankenhauses in Nancy untersucht worden. Die Tests wurden „a posteriori“ durchgeführt; mittlere Zeit: drei Wochen nach dem Zwischenfall (Spannweite: eine Woche bis ein Jahr). Eine zweite Serie von Tests wurde bei 35% der Patienten und eine dritte Serie bei 8% der Patineten durchgeführt. Mit Hilfe der Tests wurde zwischen Anaphylaxie und anaphylaktoiden Reaktionen differenziert. In Frage kommende Arzneimittel wurden durch intradermale Testung, durch Degranulierungstests an menschlichen Basophilen und P.K.-Tests bestimmt. An prädisponierenden Faktoren wurde untersucht: Atopie (IgE Dosis), Anstieg der Histaminfreisetzung (intradermaler Test mit 48/80), abnormale Aufnahmefähigkeit für Histamin (intradermales Histamin), Spasmophilie (elektromyographische Aufzeichnungen). Die Ergebnisse zeigten, daß 42 Zwischenfälle einer echten Anaphylaxie entsprachen (einer von ihnen IgG mediiert); 48% der untersuchten Zwischenfälle wurden durch Succinylcholin hervorgerufen. Einige der prädisponierenden Faktoren wurden im untersuchten Patientengut in höherer Inzidenz als in der gesamten französischen Bevölkerung gefunden; Atopie, Hypersensitivität auf Histamin, vorherige Arzneimittelallergie, Spasmophilie.
    Notes: Summary One hundred severe peranesthetic accidents occuring in hospitals in the eastern part of France were tested between 1975 and 1980 at the Immunological Unit of the University Hospital in Nancy. Tests were carried out “a posteriori”; mean time: three weeks after the accident (extremes: one week to one year). A second battery of tests was carried out in 35%, and a third one in 8% of the patients. Anaphylaxis was differentiated from anaphylactoid reactions be means of the tests. Responsible drugs were determined by intradermal testing, by the human basophil degranulation test and P.K. tests. Predisposing factors were studied: atopy (IgE dosage), increase of histamine release (intradermal testing with 48/80), abnormal receptivity to histamine (intradermal histamine), spasmophilia (electromyography recordings). The results show that 42 accidents were due to true anaphylaxis (one of them due to IgG); 48% of the reported accidents were due to succinylcholine. Some of the predisposing factors, in the tested population, are found in a higher proportion than in the French population as a whole; atopy, hypersensitivity to histamine, previous drug allergy, spasmophilia.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 55 (1989), S. 2360-2362 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The noise in the tunneling current of a scanning tunneling microscope (STM) has been investigated. At gap voltages above a few mV the current noise shows a 1/f spectral distribution over a range of 1 Hz to 100 kHz. However, at zero bias white noise scaling like thermal noise for the equivalent gap resistance is found. Due to its exponential distance dependence, this noise at zero bias can be used to adjust the tip-to-sample distance with an accuracy similar to the conventional STM method. The performance of a scanning microscope based on this principle is demonstrated.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 11 (1981), S. 0 
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The antigen non-specific release of histamine by synthetic neuromuscular blocking agents is well known, though our review of thirty-two cases reported in the literature of anaphylactoid reactions to succinylcholine, shows that there is insufficient evidence to determine whether the signs are due to anaphylactic or to anaphylactoid reactions.We have examined thirteen cases in whom evidence of anaphylactic sensitization was examined by direct skin tests (in eleven cases) Prausnitz-Küstner tests (in five), rabbit basophil degranulation, Shelley test (in twelve) and human basophil degranulation (in seven). These tests were done on two to four occasions, and the optimal period for the first test ascertained to be 6 to 12 weeks after the episode. All eleven patients examined by direct skin tests showed evidence of anaphylactic sensitivity, and in three of five cases the sensitivity could be transferred by the Prausnitz-Küstner procedure. In one of these P-K tests there was evidence of both IgE and of IgG S-TS antibodies (heat-stable antibody conferring sensitivity for 2 hr).Particular susceptibilities to adverse reactions to this drug appear to be prior drug allergy (in 50% of cases), several previous anaesthetics, and atopy.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 76 (1994), S. 7209-7216 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: In scanning thermal microscopy, but also in scanning tunneling microscopy, the thermal contact between tip and sample plays an important role. The heat transfer across the vacuum gap between two parallel metallic surfaces, if the gap width is decreased below several microns, has been investigated. At these distances propagating electromagnetic modes die out but simultaneously a transfer of nonpropagating surface modes across the gap becomes more probable. The heat conductance of the vacuum gap should become distance dependent and larger than that given by the Stefan–Boltzmann law; however, the experimental results and theoretical considerations indicate that the heat transfer, based on the discussed proximity mechanism, is very small, smaller than predicted by the theory of Polder and Van Hove [Phys. Rev. B 4, 3303 (1971)]. © 1994 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 59 (1988), S. 840-842 
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Simple modification of the electronics of a STM allows operation in various tracking modes. Profiles of steepest inclination, equal height, equipotential, electrical field lines, etc., can be traced out. The tunnel tip can also be locked to a surface extremity for indefinite time. Some of these possibilities were tested experimentally.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 67 (1996), S. 2557-2559 
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: We present the construction of a very compact scanning tunneling microscope (STM) which can be operated at temperatures between 4 and 350 K. The tip and a tiny tip holder are the only movable parts, whereas the sample and the piezoscanner are rigidly attached to the body of the STM. This leads to an excellent mechanical stability. The coarse approach system relies on the slip-stick principle and is operated by the same piezotube which is used for scanning. As an example of the performance of the device, images of a NbSe2 surface with atomic resolution are obtained. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The fully computer-controlled user-dedicated small-angle scattering facility JUSIFA was set up for general use at the DORIS Synchrotron Radiation Source in DESY (Hamburg). This beamline is especially designed for anomalous scattering studies of anisotropic samples in materials science and enables ASAXS studies to be undertaken on the length scale 0.5 to 100 nm in an energy range of 4.5 to 35 keV.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 59 (1986), S. 2993-2995 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Guided-wave interferometric modulators at λ=2.6 μm, in Ti:LiNbO3, have been demonstrated. The design, fabrication, and performance of these modulators are presented. Extinction ratios as high as ∼30 dB with Vπ∼14 V for the extraordinary mode have been observed. No out-diffused modes were detected, likely as a result of the required diffusion conditions of high temperature and a long time.The devices are for use with state-of-the-art fluoride-glass fibers, whose transmission loss spectra currently reveal a minimum value near 2.55–2.6 μm.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 67 (1995), S. 1217-1219 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: If there is a temperature difference between tip and sample of a scanning tunneling microscope a thermovoltage is generated which is very sensitive to the electronic states involved in the tunneling process. This has been used, e.g., to distinguish between different metals of a heterogeneous metallic surface. To demonstrate the capability of this method it has been applied to copper islands on a Ag(111) surface. Knowing the thermopower for chemically homogeneous silver and copper surfaces of −45 and −15 μV/K, respectively, islands of copper on the silver substrate can be well identified with a lateral resolution of 1 nm. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
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