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  • 1
    Electronic Resource
    Electronic Resource
    Nanocrystal formation in SiC by Ge ion implantation and subsequent thermal annealing (2002)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 91 (2002), S. 1520-1524 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Ge nanocrystals were produced in 4H–SiC by implantation of 250 keV Ge+ ions with a dose of 1×1016 cm−2 and subsequent rapid thermal annealing at 1400–1600 °C. Radiation damage and Ge distribution after implantation and annealing were analyzed by Rutherford backscattering spectrometry, cross-sectional transmission electron microscopy methods, and x-ray diffraction. After ion implantation a significant amount of Ge is incorporated into the SiC lattice and Ge nanocrystallites were not found. Thermal annealing leads to a local Ge redistribution and both Ge-rich and Ge nanocrystals are detected after annealing. The size of the nanocrystals varies between 2 and 10 nm. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1430539
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  • 2
    Electronic Resource
    Electronic Resource
    Epitaxial relationship in the AlN/Si(001) heterosystem (2000)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 76 (2000), S. 2029-2031 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The epitaxial growth of crystalline wurtzite AlN thin films on (001) Si substrates by plasma-assisted molecular-beam epitaxy is reported. The nucleation and the growth dynamics have been studied in situ by reflection high-energy electron diffraction. Cross-sectional transmission electron microscopy and x-ray diffraction investigations revealed a two-domain film structure (AlN1 and AlN2) with a 30° rotation between neighboring domain orientations and an epitaxial orientation relationship of [0001]AlN(parallel)[001]Si and 〈011¯0〉AlN1(parallel)〈2¯110〉AlN2(parallel)[110]Si. A model for the nucleation and growth mechanism of 2H–AlN layers on Si(001) is proposed. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.126244
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  • 3
    Electronic Resource
    Electronic Resource
    Contribution of Ca2+-Activated K+ Channels to Hyperpolarizing After-Potentials and Discharge Pattern in Rat Supraoptic Neurones (2004)
    Oxford, UK : Blackwell Science Ltd
    Journal of neuroendocrinology 16 (2004), S. 0 
    Details
    ISSN: 1365-2826
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The contribution of Ca2+-activated K+ channels to hyperpolarizing after-potentials (HAP) of action potentials, to spike-frequency adaptation and thus to the shaping of discharge pattern, was examined in rat supraoptic magnocellular neurosecretory cells. In addition, the expression of BK channels and SK3 subunits of SK channels was studied using double immunofluorescence detection. The presence of BK channels and SK3 subunits was detected in many supraoptic neurones containing either vasopressin or oxytocin. Current-clamp recordings of current-induced spike trains revealed that HAPs comprise a fast and a slow HAP (fHAP and sHAP). Correlation analyses revealed that the increase of the fHAP in amplitude and spike broadening were correlated to a moderate gradual increase of the interspike interval and thus to weak spike-frequency adaptation. By contrast, marked prolongation of the interspike interval and strong spike-frequency adaptation depended on the appearance and on the amplitude of the sHAP. The sHAP and spike-frequency adaptation were blocked by cadmium, as well as by the SK channel antagonist apamin. The fHAP was attenuated by the BK channel antagonist iberiotoxin (IbTX), by the BK/IK channel antagonist charybdotoxin (ChTX) and by apamin. ChTX attenuated fHAPs throughout the entire spike train. By contrast, the IbTX-induced attenuation of the fHAP was restricted to the initial part of the spike train, while the apamin-induced attenuation slowly increased with the progression of the spike train. These results suggest that strong spike-frequency adaptation in supraoptic neurones essentially depends on the generation of the sHAP by activation of SK channels. Comparison of effects of IbTX, ChTX and apamin suggests a complementary contribution of SK-, BK- and IK-channels to fHAPs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2826.2004.01204.x
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  • 4
    Electronic Resource
    Electronic Resource
    Arsenic ion implantation in Hg"1"-"xCd"xTe
    Amsterdam : Elsevier
    Journal of Crystal Growth 86 (1990), S. 762-767 
    Details
    ISSN: 0022-0248
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0022-0248(90)90804-T
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  • 5
    Electronic Resource
    Electronic Resource
    Oxidation of cobalt at room temperature, studied by combined static SIMS, static AES, XPS and work function investigations
    Amsterdam : Elsevier
    Surface Science 124 (1983), S. 51-67 
    Details
    ISSN: 0039-6028
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0039-6028(83)90335-7
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  • 6
    Electronic Resource
    Electronic Resource
    Quasisimultaneous SIMS, AES, XPS, and TDMS study of preferential sputtering, diffusion, and mercury evaporation in Cd"xHg"1"-"xTe
    Amsterdam : Elsevier
    Surface Science 104 (1981), S. 365-383 
    Details
    ISSN: 0039-6028
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0039-6028(81)90066-2
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  • 7
    Electronic Resource
    Electronic Resource
    Monoclonal antipeptide antibodies to the glucocorticoid receptor
    Amsterdam : Elsevier
    The @Journal of Steroid Biochemistry and Molecular Biology 42 (1992), S. 467-474 
    Details
    ISSN: 0960-0760
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0960-0760(92)90258-K
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  • 8
    Electronic Resource
    Electronic Resource
    Diglyceride kinase from Escherichia coli can phosphorylate monoglycerides (1982)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 13 (1982), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.1982.tb08297.x
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  • 9
    Electronic Resource
    Electronic Resource
    Elektronischer Diskurs zu Umsetzungsmöglichkeiten des Aktionsprogramms “Umwelt und Gesundheit” (2000)
    Springer
    Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz 43 (2000), S. 343-345 
    Details
    ISSN: 1437-1588
    Keywords: Schlüsselwörter Aktionsprogramm Umwelt und Gesundheit ; Beteiligung der Öffentlichkeit ; Nicht-Regierungsorganisationen (NRO) ; Keywords National Environmental Health Action Plan (NEHAP) ; public participation ; non-governmental organisation (NGO)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Until today the “Environment and Health” action program (APUG = Aktionsprogramm “Umwelt und Gesundheit”) is not well known, neither by the public nor by the media. At the expert level only complex relationships and general points of view have been discussed. Among other actions an evaluated electronic information tool with the aim to facilitate the tasks to be performed by APUG should promote a broad public participation and initiate concrete actions on the local level. Thus it will provide the essential flow of information between the public and Environmental Health professionals.
    Notes: Zusammenfassung Das Aktionsprogramm “Umwelt und Gesundheit” (APUG) hat es bisher noch nicht geschafft, in die Wahrnehmung der Öffentlichkeit und der Medien zu gelangen. Auf der Fachebene wurden bisher nur die komplexen Zusammenhänge und übergeordneten Perspektiven thematisiert. Neben weiteren Maßnahmen soll ein moderierter elektronischer Diskurs zu den Umsetzungsmöglichkeiten des APUG eine breite inhaltliche Beteiligung der Öffentlichkeit fördern, konkrete Aktivitäten auf der lokalen Ebene initiieren und somit insgesamt den notwendigen Praxisbezug herstellen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001030050263
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  • 10
    Electronic Resource
    Electronic Resource
    Auf- und Ausbau einer europäischen Informations- und Kommunikationsplattform (2000)
    Springer
    Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz 43 (2000), S. 346-350 
    Details
    ISSN: 1437-1588
    Keywords: Schlüsselwörter Umwelt und Gesundheit ; elektronische Vernetzung ; Europäische Informations- und Kommunikationsplattform ; Keywords Environmental Health ; Electronic network ; European information- and communication platform
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The area “Environment and Health” is characterized by interdisciplinary features and, consequently, an intense need for communication. In addition it has to be considered that sometimes there are difficulties in terms of information search. A comparison of national problem solving strategies concerning electronic network activities within this area led to the development project for a European information and communication platform. By this electronic platform the international exchange of experiences, coordination of activities, harmonization efforts and an optimization of qualification possibilities for environmental health professionals will become easier.
    Notes: Zusammenfassung Der Bereich “Umwelt und Gesundheit” zeichnet sich durch einen interdisziplinären Charakter und einen daraus resultierenden hohen Kommunikationsbedarf aus. Erschwerend kommt hinzu, dass sich mitunter bei der Informationsbeschaffung erhebliche Probleme ergeben. Ein Vergleich nationaler Problemlösungsstrategien in Form elektronischer Vernetzungsaktivitäten auf diesem Gebiet hat zum Entwicklungsprojekt für eine europäische Informations- und Kommunikationsplattform für diesen Bereich geführt. Internationaler Erfahrungsaustausch, koordinierte Vorgehensweisen, Harmonisierungsbestrebungen und Qualifizierungsmöglichkeiten für “environmental health professionals” sollen hierdurch erleichtert werden.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001030050264
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