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  • 1
    Electronic Resource
    Electronic Resource
    Two-chamber furnace for flameless atomic absorption spectrometry (1974)
    s.l. : American Chemical Society
    Analytical chemistry 46 (1974), S. 1352-1352 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac60345a032
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  • 2
    Electronic Resource
    Electronic Resource
    Two-chamber Furnace for Flameless Atomic Absorption Spectrometry (1974)
    s.l. : American Chemical Society
    Analytical chemistry 46 (1974), S. 1352-1355 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac60345a601
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  • 3
    Electronic Resource
    Electronic Resource
    Brillouin light scattering on Fe/Cr/Fe thin-film sandwiches (1994)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 75 (1994), S. 3553-3563 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Brillouin light scattering (BLS) in the backscattering configuration has been used to study the magnetic excitations in epitaxial Fe(38 A(ring))/Cr(13 A(ring))/Fe(38 A(ring)) thin-film sandwiches. Spin-wave frequency was measured versus in-plane wave vector k and static in-plane magnetic field H for both [100] and [110] direction fields and with k perpendicular to H. The range of applied fields was 50–1500 Oe. The wave-number range was 0.45×105–2.3×105 rad/cm. The BLS spectra correlate with magnetization versus field profiles and confirm the antiferromagnetic coupling between the Fe layers. Under low-field conditions and near-antiparallel alignment of the Fe layer magnetization vectors, the spin-wave frequencies from the Stokes and anti-Stokes sides of the BLS spectra are different. These frequencies merge at high field. The low-field splitting feature is very sensitive to small differences in thickness for the magnetic layers and indicates a thickness difference of 9%. Matchups between features of the BLS data and magnetization curves were obtained for the following parameters: magnetic layer saturation induction 4πMs=18.6 kG; cubic anisotropy field HA=550 Oe; in-plane [110] uniaxial anisotropy field HU=76 Oe; antiferromagnetic interlayer exchange coupling field HJ=120 Oe. Spin-wave frequency calculations based on these parameters show quantitative agreement with the measurements. The quantitative fits require inclusion in the theory of an iron layer surface anisotropy with an effective surface anisotropy field of 2 kOe.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.356092
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  • 4
    Electronic Resource
    Electronic Resource
    Brillouin light scattering on Fe/Cr/Fe films (abstract) : 37th Annual conference on magnetism and magnetic materials (1993)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 73 (1993), S. 5987-5987 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Brillouin light scattering (BLS) was used to measure magnon frequency versus in-plane field H and in-plane wave vector for a Fe(38 A(ring))/Cr(13 A(ring))/Fe(38 A(ring)) thin film. Both easy [100] and hard [110] field directions were used. The in-plane wave vector was perpendicular to the field. The data were obtained with a high contrast multipass tandem 3+3 Sandercock Fabry–Perot interferometer, with a free spectral range of 30 GHz. The results were correlated with previous hysteresis measurements.1 In the low field region (H〈200 Oe), the magnon frequency decreases with increasing field in a manner consistent with soft mode behavior. The mode frequency in this low field region is slightly different on the Stokes (S) and anti-Stokes (AS) sides of the BLS spectra. At fields of 150–200 Oe one sees a cusp-like minimum in the magnon frequency field dependence. The S and AS frequencies also converge at this point. This is evidence for the antiparallel alignment of the two magnetizations of the Fe layers and the onset of canting.2 At higher fields (250–350 Oe) one sees a jump in frequency, followed by an apparent approach to saturation, and a further increase above 2 kOe. This behavior is basically the same for both field directions, but the frequencies are downshifted somewhat for the hard [110] direction. The wave-number k dependence is weak in the low field region. Above the jump, the magnon frequency shows a distinct increase with k. The substantial frequency increase with field above 2 kOe may indicate conversion to a surface mode character. This is consistent with the k dependence seen at high fields.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.353494
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  • 5
    Electronic Resource
    Electronic Resource
    A beam line for highly charged ions (1996)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 67 (1996), S. 2528-2533 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The design and operation of a beam line for transporting and charge-to-mass selecting highly charged ions extracted from the National Institute of Standards and Technology electron beam ion trap (EBIT) are described. This beam line greatly extends the range of experiments possible at this facility. Using the transport system, pure beams of low-energy, highly charged ions up to Xe44+ have been produced with substantially higher fluxes than previously reported from an EBIT source. Design choices and computer modeling for the various components of the beam line are explained in detail. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1147192
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  • 6
    Electronic Resource
    Electronic Resource
    Kingdon trap apparatus and technique for precise measurement of the lifetimes of metastable levels of ions (1998)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 69 (1998), S. 1991-1995 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A portable system consisting of a Kingdon electrostatic ion trap and associated vacuum system and electronics has been especially designed to capture multiply charged ions from a beam produced by an electron cyclotron resonance ion source and to measure the lifetimes of the decays of metastable levels of these ions, which are excited in the source. Measurements on ion charge states as high as 14+ have been completed, with precisions exceeding 1% achieved with a few hours of data collection time in favorable cases. Gaseous and metallic ions of astrophysical interest have been studied. The measured lifetime of the 3s23p2 1D2 level of Mn11+, τ=11.16±0.10 ms, is discussed as an example of the apparatus capabilities. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1148886
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  • 7
    Electronic Resource
    Electronic Resource
    Confinement in a cryogenic penning trap of highest charge state ions from EBIT (1994)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 65 (1994), S. 3472-3478 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The retrapping of highly charged Xe44+ and Th68+,72+ ions extracted from an "electron-beam ion trap'' (EBIT) is demonstrated after injection of the ions into RETRAP, a cryogenic Penning trap (up to 6 T magnetic field) currently with an open cylinder design. Ion extraction in a short pulse (5–20 μs) from EBIT, essential for efficient retrapping, is employed. The ions are slowed down upon entering a deceleration tube mounted above the trap within the magnetic field. The potential is then rapidly (100 ns) decreased, enabling low-energy ions to enter the trap. Capture efficiencies up to 25% are observed via detection of the delayed ion release pulse with a detector below the trap. Signal voltages induced in a tuned circuit due to single and multiple ions have been observed by tuning the ion resonant axial oscillation frequencies for different ions. Results from transporting and retrapping of the ions, as well as their detection, are described and the trapping efficiency is discussed. The motivation for these studies is to cool the trapped very highly charged ions to low temperatures (〈4 K) in order to perform ultrahigh-resolution precision spectroscopy, collision studies at ultralow energies, and to observe phase transitions in Coulomb clusters of highly charged ions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1144525
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  • 8
    Electronic Resource
    Electronic Resource
    Calcium influx and protein kinase Cα activation mediate arachidonic acid mobilization by the human NK-2 receptor expressed in Chinese Hamster ovary cells
    Amsterdam : Elsevier
    FEBS Letters 338 (1994), S. 75-80 
    Details
    ISSN: 0014-5793
    Keywords: Arachidonic acid ; Ca^2^+ influx ; Eicosanoid ; NK-2 receptor (human) ; Neurokinin A ; PKC
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0014-5793(94)80119-3
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  • 9
    Electronic Resource
    Electronic Resource
    An automated ultrasonic telemetry system for the assessment of locomotor activity in free-ranging rainbow trout, Salmo gairdneri, Richardson (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 25 (1984), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: A new automated ultrasonic telemetry system for monitoring the swimming activity of adult rainbow trout, Salmo gairdneri, at liberty in the wild is described. The transmitter detects bioelectric potentials (i.e. electromyograms) associated with the contraction of the epaxial myomeres during swimming. Transmitter output is relayed to the signal processing system via submerged hydrophones. The incoming signals represent averaged electromyograms which have been shown in earlier studies to correlate well with swimming activity and concurrent oxygen consumption of rainbow trout in the laboratory.Electromyogram records obtained from rainbow trout released into a small lake and monitored for up to 4 weeks, indicate a fairly regular pattern of elevated midday activity contrasting with periods of relative quiescence during the evening and morning. This midday peak in locomotory activity is the result of an increased feeding activity which is evidently a response to a concomitant increase in the activity of the fish's prey.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.1984.tb04916.x
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  • 10
    Electronic Resource
    Electronic Resource
    Cloning of the α–adducin gene from the Huntington's disease candidate region of chromosome 4 by exon amplification (1992)
    [s.l.] : Nature Publishing Group
    Nature genetics 2 (1992), S. 223-227 
    Details
    ISSN: 1546-1718
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] We have applied the technique of exon amplification to the isolation of genes from the chromosome 4p16.3 Huntington's disease (HD) candidate region. Exons recovered from cosmid Y24 identified cDNA clones corresponding to the α–subunit of adducin, a calmodulin–binding protein that ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/ng1192-223
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