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  • 1990-1994  (8)
  • 1993  (3)
  • 1992  (5)
  • 1
    Electronic Resource
    Electronic Resource
    Effective renal plasma flow in patients with glycogen storage disease type I (1993)
    Springer
    European journal of pediatrics 152 (1993), S. 674-676 
    Details
    ISSN: 1432-1076
    Keywords: Glycogen storage disease type I ; Kidney involvement ; Renal scintigraphy ; Effective renal plasma flow
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract To evaluate effective renal plasma flow (ERPF) we performed renal scintigraphies with99mTc-Mercaptoacetyl-triglycine (MAG3) in ninepatients with glycogen storage disease I (GSD I) (age: 16±7 years). Two patients presented with proteinuria, none showed hyperaminoaciduria, disturbed tubular reabsorption of phosphate or hypertension.99mTc-MAG3 clearance values were elevated in eight out of nine patients (865±233 ml/min/1.73 m2 body surface area) and exceeded the agedependent mean values by 21%–145%. ERPF values in patients with poor metabolic control were higher than in patients with long-term good metabolic control (988±186 vs. 619±55 ml/min/1.73 m2;P〈0.05). We conclude that enhanced ERPF is a common finding in GSD I patients, which preceeds clinically overt nephropathy. Renal scientigraphy with99mTc MAG3 is a suitable method for the early detection and monitoring of kidney dysfunction in GSD I.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01955246
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Defect-induced redistribution of Fe- or Ti-implanted and annealed GaAs, InAs, GaP, and InP (1992)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 72 (1992), S. 3514-3521 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The structural properties of GaAs, InAs, GaP, and InP implanted by Fe or Ti at 150 keV/400 keV and doses of 1012–1×1015 cm−2 and the depth distribution of the implants are comparatively studied before and after annealing with and without a Si3N4 cap. Results of Rutherford backscattering, x-ray double-crystal diffractometry, and secondary-ion mass spectroscopy experiments are presented. Fe redistributes strongly in all materials upon annealing, Ti does not redistribute at all. The driving force of redistribution of Fe is not classical diffusion but reaction with implantation-induced defects and stoichiometric imbalances. The actual defect chemistry of the as-implanted arsenides is found to be fundamentally different from the as-implanted phosphides since in the latter case the mass ratio of the constituents is much larger and the specific energy for amorphization is much lower. Consequently, redistribution of Fe in the phosphides and the arsenides differs qualitatively from each other.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.351429
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Cap and capless annealing of Fe-implanted InGaAs (1993)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 73 (1993), S. 4825-4830 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The distribution of Fe implanted at medium (1–4×1014 cm−2) and low (2×1012 cm−2) doses into InGaAs and annealed with or without a cap is investigated and the degree of compensation of such implanted regions is assessed. Secondary ion mass spectrometry profiles of low dose implanted Fe reveal a substantial role of the capping layer. Fe concentrations below as well as above the estimated metal vacancy concentration produced by implantation are observed. The effect of the cap strongly depends on the wet chemical surface preparation before insulator deposition. A correlation of the magnitude of the Fe accumulation at the InGaAs surface with defect related photoluminescence intensity is established. On the basis of the substitutional-interstitial diffusion model the barrier effects of the various caps for host and dopant atoms are analyzed. The best semi-insulating properties were obtained for plasma enhanced chemical vapor deposition SiO2 caped samples using a H2SO4:H2O2:H2O=1:1:125 surface preparation before deposition resulting in a 53% incorporation of Fe. A high electrical activation is proved directly by capacity-voltage profiles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.353797
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    A simple technique for simultaneous fabrication of p+/n diodes and ohmic contacts on n-type InP (1992)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 71 (1992), S. 5699-5702 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Low leakage current p+/n step junctions with mechanically stable ohmic contacts to p+ layer are fabricated on n-InP wafers simultaneously by a simple procedure consisting of vacuum evaporation of Ni, Zn, and Au followed by a short heat treatment at 340 °C. Current-voltage and capacitance-voltage measurements, secondary ion mass spectroscopy, and deep level transient spectroscopy are employed to characterize the diodes fabricated and to understand their structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.351356
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    Paper (German National Licenses)
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  • 5
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    Menstrual Taboos Among Havik Brahmin Women: A Study of Ritual Change (1992)
    New York, N.Y. : Periodicals Archive Online (PAO)
    Sex Roles. 26:1/2 (1992:Jan.) 19 
    Details
    ISSN: 0360-0025
    Topics: Archaeology
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:v531-1992-026-01-000003
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  • 6
    Electronic Resource
    Electronic Resource
    Menstrual taboos among havik brahmin women: A study of ritual change (1992)
    Springer
    Sex roles 26 (1992), S. 19-40 
    Details
    ISSN: 1573-2762
    Source: Springer Online Journal Archives 1860-2000
    Topics: Sociology
    Notes: Abstract This paper reports on changes in the beliefs and observance of menstrual taboos among Havik Brahmins in South India. Menstrual taboos have decreased in importance over the past 20 years as a woman's primary role has been redefined as a marital partner rather than as a bearer of children. When her function was as a bearer of children for the patrilineage, she was considered subject to biological rhythms and a threat to male ritual status. With increased education, professional opportunities, and increased marriage age for women, ritual status and male dominance have become less significant. Women are ritually less dangerous, less dependent on men, and transcend the biological rhythms that menstrual taboos symbolize.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00290123
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    The instrumental analysis of inactive tracers by photon activation (1993)
    Springer
    Journal of radioanalytical and nuclear chemistry 168 (1993), S. 385-392 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Because of incresing problems due to the general non-acceptance of the application of open radioactivity in modern industrial research an investigation was made concerning the possibility of replacing radiotracers by inactive substances activated by photons after sampling. As an example, investigations in the glass-processing industry was selected. The results were confirmed by the radiotracer experiment performed in parallel. The data obtained were in good agreement.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02040518
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Human evolutionary research in eastern germany (1992)
    Springer
    Human evolution 7 (1992), S. 31-39 
    Details
    ISSN: 1824-310X
    Keywords: Evolution of Man Origin of Human Society ; Bilzingsleben ; Interdisciplinary ; Working Group
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Human evolutionary research in Eastern Germany, limited in this paper to the origins and evolution of Pleistocene man, has mainly focused during the last decade on theoretical aspects of the evolution of man and human society from multiple and interdisciplinary perspectives. An interdisciplinary working group ‘Probleme der Menschwerdung’ was founded in 1977. About 30 specialists from various fields have discussed problems of the origins and evolution of man and human society under interdisciplinary aspects. The activities, difficulties and results of this cooperation will be outlined in this paper. There will also be given a progress report on the disciplinary initiated research on local sites as well as on general aspects and problems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02436258
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    Paper (German National Licenses)
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