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Oxygen and light accelerate recovery from SO2-induced inhibition of leaf photosynthesis and from cytoplasmic acidification
(Elsevier GmbH, 2000)
Leaves of several plant species were illuminated either in air or in a gas atmosphere with reduced oxygen content, and photosynthesis and transpiration were recorded after brief exposure to high concentrations of SO2. ...
Dielectric and piezoelectric properties of the mechanochemically prepared PZT ceramics
(Springer, New York, 2004)
Mechanochemical synthesis was applied to obtain nanocrystalline powders of composition Pb(Zr0.52Ti0.48)O-3 (PZT). Milling was performed in a planetary ball mill using vials and balls made of zirconia or steel-in order to ...
ZL-DHP lignin model compound at the air-water interface
(Elsevier, Amsterdam, 2002)
In this paper we present our surface chemistry studies of enzymatically polymerized, poly-coniferyl alcohol lignin model compound (dehydrogenate polymer a.k.a. ZL-DHP) at the air-water interface. Using the CHCl3/MeOH (5:1 ...
Study of the lignin model compound supramolecular structure by combination of near-field scanning optical microscopy and atomic force microscopy
(Elsevier, Amsterdam, 2004)
In this paper, we present a nanoscale study of the supramolecular structure of the dehydrogenate polymer (ZL-DHP) lignin model compound. The combination of near-field scanning optical microscopy (NSOM or SNOM) and atomic ...
Effect of bicarbonate on uptake and translocation of Fe-59 in two grapevine rootstocks differing in their resistance to Fe deficiency chlorosis
(Bundesanstalt Zuchtungs Forschung Kulturpflanzen, Siebeldingen, 2000)
In order to study the effect of high bicarbonate concentration in the root medium on root Fe-III reduction, Fe uptake and its translocation to the leaves, two rootstocks (Vitis riparia Michx., susceptible, and 41 B (Vitis ...
Effects of xanthine derivatives on electroretinographic responsiveness
(Elsevier, Amsterdam, 2000)
In view of the use of synthetic propentofylline (PPF) as a protective agent in brain ischemia, its possible side effects on vision capacities have been explored by electroretinography in comparative experiments with ...
Far infrared reflectance of sintered nickel manganite samples for negative temperature coefficient thermistors
(Pergamon-Elsevier Science Ltd, Oxford, 2007)
Single phase complex spinel (Mn, Ni, Co, Fe)(3)O-4 samples were sintered at 1050, 1200 and 1300 degrees C for 30 min and at 1200 degrees C for 120 min. Morphological changes of the obtained samples with the siDtering ...
Topographical characterization and surface force spectroscopy of the photochemical lignin model compound
(Elsevier, Amsterdam, 2001)
By combining the results from atomic force microscopy (AFM) and environmental scanning electron microscopy (ESEM), herein we investigate properties of photochemical lignin model compounds. We provide evidence that photochemical ...
Activity and stability of soluble and immobilized alpha-glucosidase from baker's yeast in cosolvent systems
(Taylor & Francis Ltd, Abingdon, 2006)
The activity of alpha-glucosidase from baker's yeast was determined in various concentrations of dioxan, tetrahydrofuran, tert-butanol, dimethylformamide, methanol and dimethylsulfoxide (DMSO). Higher activities were ...
EPR Spin-Trapping and Spin-Probing Spectroscopy in Assessing Antioxidant Properties: Example on Extracts of Catkin, Leaves, and Spiny Burs of Castanea sativa
(Springer, New York, 2009)
Electron paramagnetic resonance (EPR) spin-trapping and spin-probing techniques were applied to determine antioxidant activity of extracts of catkin, leaves, and spiny burs of Castanea sativa against physiologically relevant ...