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  • 1995-1999  (5)
  • 1975-1979
  • 1997  (5)
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  • 1995-1999  (5)
  • 1975-1979
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  • 1
    Digitale Medien
    Digitale Medien
    Organic electroluminescence cells based on thin films deposited by ultraviolet laser ablation (1997)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 71 (1997), S. 2469-2471 
    Details
    ISSN: 1077-3118
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Organic thin films of copper-phthalocyanine (CuPc) and aluminum tris-8-hydroxyquinline (Alq3) were fabricated via KrF laser ablation. In spite of poor crystallinity exhibited in the reconstructed organic films, the CuPc film still works as a hole-transport layer in electroluminescence cells based on the CuPc and Alq3 layers. Electroluminescence at ∼500 nm was obtained with a low initiation voltage of ∼12 V. There is no significant difference in electroluminescence performance for devices fabricated via laser ablation and thermal evaporation. Emission at ∼600 nm caused by energy transfer from Alq3 to 4-(Dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran (DCM) is also observed from a DCM-doped Alq3 emission layer. © 1997 American Institute of Physics.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.120114
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  • 2
    Digitale Medien
    Digitale Medien
    Influence of bone quality on the stress distribution (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical oral implants research 8 (1997), S. 0 
    Details
    ISSN: 1600-0501
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1600-0501.1997.tb00003.x
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  • 3
    Digitale Medien
    Digitale Medien
    Amlodipine lowers blood pressure without increasing sympathetic activity or activating the renin-angiotensin system in patients with essential hypertension (1997)
    Springer
    European journal of clinical pharmacology 53 (1997), S. 197-201 
    Details
    ISSN: 1432-1041
    Schlagwort(e): Key words Amlodipine ; Hypertension
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Medizin
    Notizen: Abstract Objective: Recent clinical studies suggest that the reflex increase in sympathetic nervous activity accompanying a reduction in blood pressure may contribute to the untoward effects of dihydropyridine calcium antagonists. The aim of this study was to examine whether plasma noradrenaline levels and renin activity are increased with the reduction of blood pressure during the initial phase of administration of the long-acting dihyropyridine calcium antagonist amlodipine. Methods: The effects of amlodipine on ambulatory blood pressure and on diurnal variations in plasma noradrenaline and renin activity were examined 1, 4, and 7 days after the start of amlodipine administration in eight inpatients with essential hypertension. Results: The 24-h mean systolic and diastolic blood pressure on day 7 was significantly lower than it was 1 day before the start of treatment. There was no change in the mean heart rate. The mean trough to peak ratios of systolic and diastolic blood pressure of seven patients were 61% and 71%, respectively. Diurnal patterns of plasma noradrenaline levels and renin activity 1, 4, and 7 days after the start of amlodipine administration were unchanged. Conclusion: The antihypertensive effects of amlodipine were of slow onset and long duration and were not accompanied by an increase in sympathetic activity or activation of the renin-angiotensin system.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s002280050362
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  • 4
    Digitale Medien
    Digitale Medien
    Molecular mapping of a translocation breakpoint at 14q13 in a patient with mirror-image polydactyly of hands and feet (1997)
    Springer
    Human genetics 〈Berlin〉 99 (1997), S. 450-453 
    Details
    ISSN: 1432-1203
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Abstract Mirror hands and feet (MIM, 135750) is a rare congenital anomaly, and mirror-image polydactyly is considered to be a variant of mirror hands and feet. To our knowledge, seven patients with the disorder have been reported in the literature. Parent-to-child transmission was reported in two families, which may indicate a single-gene defect inherited in an autosomal dominant fashion. We had previously encountered a boy with mirror-image polydactyly whose karyotype showed 46,XY,t(2;14) (p23.3;q13) de novo. We hypothesized that at least one of the putative genes responsible for the determination of an anterior-posterior limb pattern is disrupted by a translocation breakpoint. In this study, we identified a yeast artificial chromosome clone spanning a translocation breakpoint at 14q13, and the breakpoint was confirmed to be located between two loci, AFM200ZH4 and D14S306, within a genetic distance of 0.6 cM.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s004390050387
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  • 5
    Digitale Medien
    Digitale Medien
    Do plant and soil systems contribute to global carbon cycling as a sink of CO2? (1997)
    Springer
    Nutrient cycling in agroecosystems 49 (1997), S. 287-293 
    Details
    ISSN: 1573-0867
    Schlagwort(e): carbon cycling ; carbon dioxide sequestration ; carbon sink ; modeling ; terrestrialecosystem
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Abstract Major conclusions from our two projects focussing on carbon cycling in terrestrial ecosystems are as follows: 1) A rural system or a farmland system tends to be a source of carbon dioxide. However, it was possible to increase carbon dioxide sequestration in soil by changing soil or paddy/upland-field management systems. 2) A model simulation showed that a carbon budget in a natural forest was balanced before cutting but the large minus (source) was observed just after cutting. But the balance changed from minus to plus (sink) in 10 years after cutting. Nearly the same amounts of carbon as that stocked in the timbers before harvesting accumulated in 70-80 years after the cutting. 3) These results indicate the possibility of soils in terrestrial ecosystems as the major sink of atmospheric carbon dioxide.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1009724723121
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