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  • 11
    Electronic Resource
    Electronic Resource
    Trivalent behavior of palladium in silicon (1997)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 71 (1997), S. 1379-1381 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Palladium is known to exhibit an acceptor state at EC−0.22 eV in n-type Si and a donor state at EV+0.31 eV in p-type Si. We have identified a third level at EV+(0.140±0.005) eV and attribute it to the double donor state of substitutional Pd. The Pd level positions are very similar to the corresponding levels for Pt. The double donor states of both metals show an electric field dependence of the emission rates and a thermal activation of the hole capture cross sections. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.119899
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  • 12
    Electronic Resource
    Electronic Resource
    Intracellular Free Calcium Dynamics in Stretch-Injured Astrocytes (1998)
    Oxford, UK : Blackwell Science Ltd
    Journal of neurochemistry 70 (1998), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: We have previously developed an in vitro model for traumatic brain injury that simulates a major component of in vivo trauma, that being tissue strain or stretch. We have validated our model by demonstrating that it produces many of the posttraumatic responses observed in vivo. Sustained elevation of the intracellular free calcium concentration ([Ca2+]i) has been hypothesized to be a primary biochemical mechanism inducing cell dysfunction after trauma. In the present report, we have examined this hypothesis in astrocytes using our in vitro injury model and fura-2 microphotometry. Our results indicate that astrocyte [Ca2+]i is rapidly elevated after stretch injury, the magnitude of which is proportional to the degree of injury. However, the injury-induced [Ca2+]i elevation is not sustained and returns to near-basal levels by 15 min postinjury and to basal levels between 3 and 24 h after injury. Although basal [Ca2+]i returns to normal after injury, we have identified persistent injury-induced alterations in calcium-mediated signal transduction pathways. We report here, for the first time, that traumatic stretch injury causes release of calcium from inositol trisphosphate-sensitive intracellular calcium stores and may uncouple the stores from participation in metabotropic glutamate receptor-mediated signal transduction events. We found that for a prolonged period after trauma astrocytes no longer respond to thapsigargin, glutamate, or the inositol trisphosphate-linked metabotropic glutamate receptor agonist trans-(1S,3R)-1-amino-1,3-cyclopentanedicarboxylic acid with an elevation in [Ca2+]i. We hypothesize that changes in calcium-mediated signaling pathways, rather than an absolute elevation in [Ca2+]i, is responsible for some of the pathological consequences of traumatic brain injury.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1471-4159.1998.70062377.x
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  • 13
    Electronic Resource
    Electronic Resource
    The shape of the ground and lowest two excited states of H2NO (1995)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 103 (1995), S. 274-280 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The structure of the ground and lowest two excited states of H2NO have been determined in large scale configuration interaction calculations using a multiconfiguration self-consistent description of the molecular orbitals. These treatments are based on a systematic building of the correlation contribution which has been designed to account for the characteristics of the nitroxide group. This approach shows that the aminoxyl functional group is more than a three electron group shared by two atoms, but, in fact, a nine electron entity. Our best estimate of the geometry of the ground electronic state, obtained after second-order configuration interaction using a large basis of atomic natural orbitals, is pyramidal. However, since the potential depth between 0° and 40° is lower or of the same order of magnitude as the estimated inversion frequency, the conclusion that this molecule behaves like a planar system is totally justified. The structure of the excited (n−π*) and (π−π*) states have been determined and the transitions energies are in accordance with the experimental results on the highly substituted stable nitroxide radicals. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.469640
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  • 14
    Electronic Resource
    Electronic Resource
    The Study of Adiabatic Parallel Plate Methanation Reactor (1977)
    s.l. : American Chemical Society
    Industrial and engineering chemistry 16 (1977), S. 113-119 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/i260061a603
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  • 15
    Electronic Resource
    Electronic Resource
    Letters. Pesticide scorecard (1977)
    s.l. : American Chemical Society
    Environmental science & technology 11 (1977), S. 1138-1138 
    Details
    ISSN: 1520-5851
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/es60136a601
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  • 16
    Electronic Resource
    Electronic Resource
    Absence of linkage between 5q markers and serum IgE levels in four large atopic families (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 26 (1996), S. 0 
    Details
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background Both genetic and environmental influences have been suggested to control the immunoglobulin (Ig)E response to allergens and, as a result, provide susceptibility to atopic disease. Two recent reports suggested that a major gene controlling basal IgE levels in humans was transmitted in a pattern consistent with autosomal recessive inheritance and was located on the long arm of chromosome 5 in the interleukin (IL)-4 gene complex.Objective The purpose of this report is to evaluate evidence for linkage of IgE with polymorphic genetic markers in the candidate region of 5q in four large pedigrees originally selected for studies of atopy.Method Four large, highly characterized pedigrees in which IgE levels had been determined and genotypes at markers in the 5q candidate region were evaluated using both lod score and sib pair methods of analysis.Results In these pedigrees, we reject close to moderate hnkage (up to 5 cM) of an IgE locus with markers on 5q.Conclusion The genetic aspects of IgE regulation and its role in atopy remain controversial. The data suggest that should major genes be involved in the inheritance of atopy susceptibility, they are likely to be multiple in number and likely to involve interaction with other (exogenous) environmental exposures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2222.1996.tb00623.x
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  • 17
    Electronic Resource
    Electronic Resource
    Benzoyl peroxide as a contact allergen in adhesive tape (1999)
    Oxford, UK : Blackwell Publishing Ltd
    Contact dermatitis 41 (1999), S. 0 
    Details
    ISSN: 1600-0536
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0536.1999.tb06146.x
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  • 18
    Electronic Resource
    Electronic Resource
    Classical and nonclassical structures of the vinyl cation. An accurate computational determination of their relative stabilities and optimum rearrangement path (1976)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 98 (1976), S. 875-876 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00419a059
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  • 19
    Electronic Resource
    Electronic Resource
    Premature termination during adenovirus transcription (1979)
    [s.l.] : Nature Publishing Group
    Nature 278 (1979), S. 367-370 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Late in adenovirus type 2 (Ad2) infection of HeLa cells a large group of virus-specific mRNAs5'7 are produced by processing the primary transcripts from a single large rightward reading transcription unit8"14. The location of the promoter site for this large transcript at 16.45 on the Ad2 ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/278367a0
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  • 20
    Electronic Resource
    Electronic Resource
    Qualitätssicherung bei der Extremitätenphlebographie (1998)
    Springer
    Der Radiologe 38 (1998), S. 578-585 
    Details
    ISSN: 1432-2102
    Keywords: Schlüsselwörter Phlebographie ; Doppler- und Duplexsonographie ; Extremitätenvenen ; Qualitätssicherung ; Key words Phlebography ; Duplex-ultrasound ; Extremity veins ; Quality standards
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary By interdisciplinary cooperation with the German Societies for Angiology, Phlebology and Vascular Surgery, recommendations have been worked out which address the indication of phlebography of the veins of the extremities and which define the quality standards of phlebographic techniques. The specific clinical questions in varicose syndrome, acute thrombosis and postthrombotic syndrome have to be answered by employing adequate phlebographic technique, documentation, and description of relevant morphologic and functional findings.
    Notes: Zusammenfassung In Zusammenarbeit mit den Fachgesellschaften Deutsche Gesellschaft für Angiologie, Deutsche Gesellschaft für Phlebologie und Deutsche Gesellschaft für Gefäßchirurgie wurden Empfehlungen zur Indikationsstellung, Untersuchungstechnik und Qualitätssicherung der Extremitätenphlebographie erstellt. Für die speziellen klinischen Fragestellungen beim Varikosesyndrom, bei der akuten Phlebothrombose und beim Postthrombotischen Syndrom werden die Qualitätsmerkmale für die Dokumentation und Befundung nach morphologischen und funktionellen Gesichtspunkten tabellarisch zusammengefaßt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001170050395
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